/* style.css — BloodsRUs Design Tokens & Components */

/* ============================================
   CUSTOM PALETTE: BloodsRUs Medical Authority
   Arterial red primary, cool white bg, near-black text, silver accent
   ============================================ */

:root, [data-theme="light"] {
  /* --- Type Scale (fluid) --- */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.9rem  + 0.5vw,  1.125rem);
  --text-lg:   clamp(1.125rem, 0.95rem + 0.85vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1rem    + 1.5vw,  2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    5rem);

  /* --- 4px Spacing --- */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* --- Floating 3D elements --- */
  --f3d-opacity: 1;

  /* --- Surfaces --- */
  --color-bg:             #FAFAFA;
  --color-surface:        #FFFFFF;
  --color-surface-2:      #F5F5F5;
  --color-surface-offset: #EEEEEE;
  --color-divider:        #E0E0E0;
  --color-border:         #D0D0D0;

  /* --- Text --- */
  --color-text:           #1A1A2E;
  --color-text-muted:     #5A5A72;
  --color-text-faint:     #9A9AAD;
  --color-text-inverse:   #F8F8F4;

  /* --- Primary: Arterial Red --- */
  --color-primary:        #C41E3A;
  --color-primary-hover:  #A3182F;
  --color-primary-active: #8B1426;
  --color-primary-light:  #FDE8EC;
  --color-primary-highlight: #F5BDC7;

  /* --- Accent: Silver/Platinum --- */
  --color-accent:         #B0B0B0;
  --color-accent-hover:   #909090;
  --color-accent-light:   #F5F5F5;
  --color-accent-highlight: #D8D8D8;

  /* --- Semantic --- */
  --color-success:        #2D6A2D;
  --color-error:          #8B1A1A;

  /* --- Radius (geometric / sharp) --- */
  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 6px;
  --radius-xl: 8px;
  --radius-full: 9999px;

  /* --- Transitions --- */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-structural: 300ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-reveal: 700ms cubic-bezier(0.16, 1, 0.3, 1);

  /* --- Shadows (neutral) --- */
  --shadow-sm: 0 1px 3px oklch(0.2 0.01 0 / 0.06);
  --shadow-md: 0 4px 16px oklch(0.2 0.01 0 / 0.08);
  --shadow-lg: 0 12px 40px oklch(0.2 0.01 0 / 0.12);

  /* --- Elevation layers (multi-layer realistic depth) --- */
  --elevation-1: 0 1px 2px oklch(0.2 0.01 0 / 0.03),
                 0 4px 12px oklch(0.2 0.01 0 / 0.06);
  --elevation-2: 0 2px 4px oklch(0.2 0.01 0 / 0.03),
                 0 6px 20px oklch(0.2 0.01 0 / 0.07),
                 0 12px 40px oklch(0.2 0.01 0 / 0.04);
  --elevation-3: 0 4px 8px oklch(0.2 0.01 0 / 0.04),
                 0 12px 28px oklch(0.2 0.01 0 / 0.08),
                 0 24px 56px oklch(0.2 0.01 0 / 0.06);

  /* --- Content widths --- */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;

  /* --- Fonts --- */
  --font-display: 'Space Grotesk', 'Arial', sans-serif;
  --font-body:    'Inter', 'Helvetica Neue', sans-serif;
}

/* ============================================
   DARK MODE
   ============================================ */
[data-theme="dark"] {
  --f3d-opacity: 0.7;
  --color-bg:             #111118;
  --color-surface:        #18181F;
  --color-surface-2:      #1E1E27;
  --color-surface-offset: #242430;
  --color-divider:        #2C2C3A;
  --color-border:         #363648;

  --color-text:           #E8E8F0;
  --color-text-muted:     #9494A8;
  --color-text-faint:     #5A5A70;
  --color-text-inverse:   #1A1A2E;

  --color-primary:        #E85D75;
  --color-primary-hover:  #D44A62;
  --color-primary-active: #C03D55;
  --color-primary-light:  #2D1520;
  --color-primary-highlight: #3A1A28;

  --color-accent:         #D0D0D0;
  --color-accent-hover:   #B8B8B8;
  --color-accent-light:   #1E1E24;
  --color-accent-highlight: #2A2A32;

  --color-success:        #4A9E4A;
  --color-error:          #CC4444;

  --shadow-sm: 0 1px 3px oklch(0 0 0 / 0.25);
  --shadow-md: 0 4px 16px oklch(0 0 0 / 0.35);
  --shadow-lg: 0 12px 40px oklch(0 0 0 / 0.45);

  --elevation-1: 0 1px 2px oklch(0 0 0 / 0.15),
                 0 4px 12px oklch(0 0 0 / 0.25);
  --elevation-2: 0 2px 4px oklch(0 0 0 / 0.15),
                 0 6px 20px oklch(0 0 0 / 0.28),
                 0 12px 40px oklch(0 0 0 / 0.15);
  --elevation-3: 0 4px 8px oklch(0 0 0 / 0.18),
                 0 12px 28px oklch(0 0 0 / 0.3),
                 0 24px 56px oklch(0 0 0 / 0.18);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --f3d-opacity: 0.7;
    --color-bg:             #111118;
    --color-surface:        #18181F;
    --color-surface-2:      #1E1E27;
    --color-surface-offset: #242430;
    --color-divider:        #2C2C3A;
    --color-border:         #363648;
    --color-text:           #E8E8F0;
    --color-text-muted:     #9494A8;
    --color-text-faint:     #5A5A70;
    --color-text-inverse:   #1A1A2E;
    --color-primary:        #E85D75;
    --color-primary-hover:  #D44A62;
    --color-primary-active: #C03D55;
    --color-primary-light:  #2D1520;
    --color-primary-highlight: #3A1A28;
    --color-accent:         #D0D0D0;
    --color-accent-hover:   #B8B8B8;
    --color-accent-light:   #1E1E24;
    --color-accent-highlight: #2A2A32;
    --color-success:        #4A9E4A;
    --color-error:          #CC4444;
    --shadow-sm: 0 1px 3px oklch(0 0 0 / 0.25);
    --shadow-md: 0 4px 16px oklch(0 0 0 / 0.35);
    --shadow-lg: 0 12px 40px oklch(0 0 0 / 0.45);
    --elevation-1: 0 1px 2px oklch(0 0 0 / 0.15),
                   0 4px 12px oklch(0 0 0 / 0.25);
    --elevation-2: 0 2px 4px oklch(0 0 0 / 0.15),
                   0 6px 20px oklch(0 0 0 / 0.28),
                   0 12px 40px oklch(0 0 0 / 0.15);
    --elevation-3: 0 4px 8px oklch(0 0 0 / 0.18),
                   0 12px 28px oklch(0 0 0 / 0.3),
                   0 24px 56px oklch(0 0 0 / 0.18);
  }
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
.font-display { font-family: var(--font-display); }
.font-body    { font-family: var(--font-body); }

.text-xs    { font-size: var(--text-xs); }
.text-sm    { font-size: var(--text-sm); }
.text-base  { font-size: var(--text-base); }
.text-lg    { font-size: var(--text-lg); }
.text-xl    { font-size: var(--text-xl); }
.text-2xl   { font-size: var(--text-2xl); }
.text-3xl   { font-size: var(--text-3xl); }

.overline {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  font-family: var(--font-body);
}

.tabular-nums {
  font-variant-numeric: tabular-nums lining-nums;
}

/* ============================================
   LAYOUT
   ============================================ */
.container {
  width: 100%;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: clamp(var(--space-4), 4vw, var(--space-16));
}

.container--narrow {
  max-width: var(--content-narrow);
}

.container--default {
  max-width: var(--content-default);
}

.section {
  padding-block: clamp(var(--space-12), 8vw, var(--space-24));
}

.section--alt {
  background-color: var(--color-surface-2);
}

/* ============================================
   NAV
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 4rem;
  display: flex;
  align-items: center;
  transition: background-color var(--transition-interactive), box-shadow var(--transition-interactive);
  background-color: transparent;
}

.nav.scrolled {
  background-color: oklch(from var(--color-surface) l c h / 0.82);
  backdrop-filter: blur(16px) saturate(1.4);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  box-shadow: var(--elevation-2);
  border-bottom: 1px solid oklch(from var(--color-border) l c h / 0.5);
}

.nav__inner {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  width: 100%;
  max-width: 1600px;
  margin-inline: auto;
  padding-inline: clamp(var(--space-4), 3vw, var(--space-12));
}

.nav__logo {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  flex-shrink: 0;
}

.nav__logo-primary {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-text);
  line-height: 1.1;
  letter-spacing: -0.01em;
}

.nav__logo-sub {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.2;
  font-family: var(--font-body);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin-left: auto;
  list-style: none;
}

.nav__link {
  position: relative;
  font-size: var(--text-sm);
  font-family: var(--font-body);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  transition: color var(--transition-interactive), background-color var(--transition-interactive);
  white-space: nowrap;
}

.nav__link:hover {
  color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.nav__link.active {
  color: var(--color-primary);
}

/* Dropdown */
.nav__dropdown {
  position: relative;
}

.nav__dropdown-menu {
  position: absolute;
  top: calc(100% + var(--space-2));
  left: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  min-width: 220px;
  padding: var(--space-2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity var(--transition-interactive), visibility var(--transition-interactive), transform var(--transition-interactive);
  z-index: 200;
  list-style: none;
}

.nav__dropdown:hover .nav__dropdown-menu,
.nav__dropdown:focus-within .nav__dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav__dropdown-item a {
  display: block;
  font-size: var(--text-sm);
  font-family: var(--font-body);
  color: var(--color-text-muted);
  text-decoration: none;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  transition: color var(--transition-interactive), background-color var(--transition-interactive);
}

.nav__dropdown-item a:hover {
  color: var(--color-primary);
  background-color: var(--color-primary-light);
}

/* ============================================
   MEGA DROPDOWN
   ============================================ */
.nav__mega-menu {
  position: absolute;
  top: calc(100% + var(--space-2));
  left: 50%;
  transform: translateX(-50%) translateY(-4px);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-6);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  min-width: 680px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-interactive), visibility var(--transition-interactive), transform var(--transition-interactive);
  z-index: 200;
}

.nav__dropdown--mega:hover .nav__mega-menu,
.nav__dropdown--mega:focus-within .nav__mega-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.nav__mega-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.nav__mega-heading {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding-bottom: var(--space-2);
  margin-bottom: var(--space-1);
  border-bottom: 1px solid var(--color-divider);
}

.nav__mega-link {
  font-size: var(--text-sm);
  font-family: var(--font-body);
  color: var(--color-text-muted);
  text-decoration: none;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  transition: color var(--transition-interactive), background-color var(--transition-interactive);
}

.nav__mega-link:hover {
  color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.nav__mega-footer {
  grid-column: 1 / -1;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-divider);
  text-align: center;
}

.nav__mega-all {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-interactive);
}

.nav__mega-all:hover {
  color: var(--color-primary);
}

@media (max-width: 1024px) {
  .nav__mega-menu {
    display: none;
  }
}

/* CTA + Theme Toggle in nav */
.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-left: var(--space-4);
}

.btn-theme-toggle {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  transition: color var(--transition-interactive), background-color var(--transition-interactive);
}

.btn-theme-toggle:hover {
  color: var(--color-primary);
  background-color: var(--color-primary-light);
}

/* Mobile nav */
.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--color-text);
  transition: background-color var(--transition-interactive);
}

.nav__hamburger:hover {
  background-color: var(--color-surface-2);
}

.nav__hamburger span {
  display: block;
  width: 20px;
  height: 1.5px;
  background: currentColor;
  transition: transform var(--transition-interactive), opacity var(--transition-interactive);
}

.nav__mobile {
  position: fixed;
  top: 4rem;
  left: 0;
  right: 0;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-divider);
  padding: var(--space-4);
  z-index: 99;
  box-shadow: var(--shadow-lg);
  max-height: calc(100dvh - 4rem);
  overflow-y: auto;
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.2s ease, visibility 0.3s ease;
}

.nav__mobile.open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.nav__mobile-link {
  display: block;
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  transition: color var(--transition-interactive), background-color var(--transition-interactive);
  border-bottom: 1px solid var(--color-divider);
}

.nav__mobile-link:last-child {
  border-bottom: none;
}

.nav__mobile-link:hover {
  color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.nav__mobile-section {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  padding: var(--space-3) var(--space-4) var(--space-1);
}

@media (max-width: 1440px) {
  .nav__inner { gap: var(--space-4); padding-inline: var(--space-4); }
  .nav__links { gap: 0; }
  .nav__link { padding: var(--space-2); font-size: var(--text-xs); }
  .nav__actions { margin-left: var(--space-2); gap: var(--space-2); }
}

@media (max-width: 1024px) {
  .nav__links { display: none; }
  .nav__hamburger { display: flex; }
  .nav__actions .btn--sm { display: none; }
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-sm);
  border-radius: var(--radius-md);
  text-decoration: none;
  cursor: pointer;
  transition: background-color var(--transition-interactive), color var(--transition-interactive), box-shadow var(--transition-interactive);
  border: 1.5px solid transparent;
  padding: var(--space-3) var(--space-6);
  line-height: 1;
  min-height: 44px;
}

.btn--primary {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  border-color: var(--color-primary);
}

.btn--primary:hover {
  background-color: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  box-shadow: 0 4px 12px oklch(from var(--color-primary) l c h / 0.3);
}

.btn--secondary {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn--secondary:hover {
  background-color: var(--color-primary-light);
}

.btn--ghost {
  background-color: transparent;
  color: var(--color-text-muted);
  border-color: var(--color-border);
}

.btn--ghost:hover {
  background-color: var(--color-surface-2);
  color: var(--color-text);
}

.btn--accent {
  background-color: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

.btn--accent:hover {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
}

.btn--sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
  min-height: 36px;
  white-space: nowrap;
}

.btn--lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
  min-height: 52px;
}

/* ============================================
   CARDS
   ============================================ */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-interactive), transform var(--transition-interactive);
}

.card--hover:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

/* ============================================
   ACCORDION
   ============================================ */
.accordion {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.accordion-item {
  border-bottom: 1px solid var(--color-divider);
}

.accordion-item:last-child {
  border-bottom: none;
}

.accordion-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-6);
  cursor: pointer;
  background: var(--color-surface);
  transition: background-color var(--transition-interactive);
  gap: var(--space-4);
  min-height: 56px;
  text-align: left;
  width: 100%;
}

.accordion-header:hover {
  background: var(--color-surface-2);
}

.accordion-header[aria-expanded="true"] {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.accordion-title {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-base);
  color: var(--color-text);
}

.accordion-header[aria-expanded="true"] .accordion-title {
  color: var(--color-primary);
}

.accordion-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--color-text-faint);
  transition: transform var(--transition-interactive), color var(--transition-interactive);
}

.accordion-header[aria-expanded="true"] .accordion-icon {
  transform: rotate(180deg);
  color: var(--color-primary);
}

.accordion-body {
  padding: 0;
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.35s cubic-bezier(0.16, 1, 0.3, 1), padding 0.2s ease;
  background: var(--color-bg);
}

.accordion-body.open {
  padding: var(--space-6);
  max-height: 5000px;
}

.accordion-body p,
.accordion-body li {
  font-size: var(--text-base);
  line-height: 1.75;
  color: var(--color-text-muted);
}

.accordion-body li {
  margin-bottom: var(--space-2);
}

.accordion-body ul, .accordion-body ol {
  padding-left: var(--space-6);
  margin-top: var(--space-3);
}

.accordion-body h4 {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-base);
  color: var(--color-text);
  margin-top: var(--space-5);
  margin-bottom: var(--space-2);
}

.accordion-body h4:first-child {
  margin-top: 0;
}

.accordion-body strong {
  color: var(--color-text);
  font-weight: 700;
}

.accordion-body p + p {
  margin-top: var(--space-4);
}

/* ============================================
   TABS
   ============================================ */
.tabs {
  margin-bottom: var(--space-6);
}

.tabs__list {
  display: flex;
  gap: var(--space-2);
  border-bottom: 2px solid var(--color-divider);
  padding-bottom: 0;
  list-style: none;
}

.tabs__btn {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  border: none;
  background: none;
  cursor: pointer;
  transition: color var(--transition-interactive), background-color var(--transition-interactive);
  position: relative;
  bottom: -2px;
  border-bottom: 2px solid transparent;
}

.tabs__btn:hover {
  color: var(--color-primary);
  background: var(--color-primary-light);
}

.tabs__btn[aria-selected="true"] {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  background: var(--color-surface);
}

.tabs__panel {
  display: none;
  padding-top: var(--space-6);
}

.tabs__panel.active {
  display: block;
}

/* ============================================
   STATS BAR
   ============================================ */
.stats-bar {
  background: var(--color-surface);
  color: var(--color-text);
  padding: var(--space-8) 0;
}

.stats-bar__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-8);
  text-align: center;
}

.stats-bar__item {}

.stats-bar__number {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1;
  font-variant-numeric: tabular-nums lining-nums;
}

.stats-bar__number span {
  color: var(--color-accent);
}

.stats-bar__label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-top: var(--space-2);
}

/* ============================================
   HERO
   ============================================ */
.hero {
  min-height: 100dvh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg in oklab,
    var(--color-primary) 0%,
    #8B1426 50%,
    #2A0A10 100%);
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 60% 50%, oklch(0.4 0.08 15 / 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 1;
  padding-top: 5rem;
}

.hero__overline {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-5);
  font-family: var(--font-body);
}

.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: #FFFFFF;
  line-height: 1.1;
  margin-bottom: var(--space-6);
  max-width: 15ch;
}

.hero__title em {
  font-style: italic;
  color: oklch(0.92 0.04 15);
}

.hero__subtitle {
  font-size: var(--text-lg);
  color: oklch(0.85 0.02 0);
  max-width: 52ch;
  line-height: 1.6;
  margin-bottom: var(--space-6);
  font-family: var(--font-body);
}

.hero__points {
  display: none; /* Moved below fold — stats bar conveys the same figures */
}

.hero__points li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: oklch(0.85 0.02 0);
  max-width: none;
}

.hero__points li::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 0;
  background: var(--color-accent);
  flex-shrink: 0;
  margin-top: 0.55em;
  transform: rotate(45deg);
}

.hero__cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

/* ============================================
   SECTION HEADERS
   ============================================ */
.section-header {
  margin-bottom: var(--space-12);
}

.section-header--center {
  text-align: center;
}

.section-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.15;
  margin-top: var(--space-3);
}

.section-body {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 60ch;
  margin-top: var(--space-4);
  line-height: 1.7;
}

.section-header--center .section-body {
  margin-inline: auto;
}

/* ============================================
   PAGE ROUTING
   ============================================ */
.page {
  display: none;
  min-height: calc(100dvh - 4rem);
  padding-top: 4rem;
}

.page.active {
  display: block;
}

/* ============================================
   TESTIMONIALS
   ============================================ */
.testimonial-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
}

.testimonial-card__quote {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.75;
  font-style: italic;
  margin-bottom: var(--space-5);
}

.testimonial-card__author {
  font-weight: 700;
  font-size: var(--text-sm);
  color: var(--color-text);
  font-family: var(--font-body);
}

.testimonial-card__role {
  font-size: var(--text-xs);
  color: var(--color-primary);
  margin-top: var(--space-1);
}

/* ============================================
   CONDITION QUICK-LINKS GRID
   ============================================ */
.conditions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-4);
}

/* ============================================
   CATEGORY CARDS (Home page — 4 groups)
   ============================================ */
.category-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

@media (max-width: 768px) {
  .category-grid { grid-template-columns: 1fr; }
}

.category-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  text-decoration: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  transition: box-shadow var(--transition-interactive), transform var(--transition-interactive), border-color var(--transition-interactive);
  position: relative;
  overflow: hidden;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.category-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: var(--color-primary);
}

.category-card:hover::before {
  transform: scaleX(1);
}

.category-card__icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.category-card__title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  color: var(--color-text);
}

.category-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.category-card__conditions {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding: 0;
}

.category-card__conditions li {
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
}

.category-card__arrow {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-accent);
  margin-top: auto;
}

/* ============================================
   CONDITIONS HUB (Landing page — #conditions)
   ============================================ */
.hub-category {
  margin-bottom: var(--space-12);
}

.hub-category__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-3);
  border-bottom: 2px solid var(--color-primary-light);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.hub-category__title::before {
  content: '';
  width: 4px;
  height: 24px;
  border-radius: 0;
  background: linear-gradient(180deg, var(--color-primary), #FF3B5C);
  flex-shrink: 0;
}

.hub-category__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-4);
}

@media (max-width: 640px) {
  .hub-category__grid {
    grid-template-columns: 1fr;
  }
}

.condition-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  text-decoration: none;
  transition: box-shadow var(--transition-interactive), transform var(--transition-interactive), border-color var(--transition-interactive);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.condition-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: var(--color-primary);
}

.condition-card__tag {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  font-family: var(--font-body);
}

.condition-card__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
}

.condition-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
  max-width: none;
}

.condition-card__arrow {
  color: var(--color-primary);
  font-size: var(--text-lg);
  margin-top: auto;
  transition: transform var(--transition-interactive);
}

.condition-card:hover .condition-card__arrow {
  transform: translateX(4px);
}

/* ============================================
   CTA BAR
   ============================================ */
.cta-bar {
  background: var(--color-primary);
  padding: var(--space-12) 0;
}

.cta-bar__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

.cta-bar__text {
  color: #fff;
}

.cta-bar__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: #fff;
  margin-bottom: var(--space-2);
}

.cta-bar__sub {
  font-size: var(--text-sm);
  color: oklch(0.9 0.01 0);
}

.cta-bar__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

/* ============================================
   TEAM PROFILES
   ============================================ */
/* Team grid layout */
.team-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-10);
}

/* Team card — horizontal layout with photo */
.team-card {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: var(--space-8);
  align-items: start;
  padding: var(--space-8);
}

.team-card__photo {
  display: flex;
  justify-content: center;
  align-items: flex-start;
}

.team-card__photo img {
  width: 180px;
  height: 220px;
  object-fit: cover;
  object-position: top center;
  border-radius: var(--radius-lg);
  box-shadow: var(--elevation-1);
  border: 3px solid var(--color-border);
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.team-card:hover .team-card__photo img {
  box-shadow: var(--elevation-2);
  transform: translateY(-2px);
}

.team-card__info {
  min-width: 0;
}

/* Avatar fallback (for doctors without photos) */
.team-avatar {
  width: 180px;
  height: 220px;
  border-radius: var(--radius-lg);
  background: var(--color-primary-light);
  border: 3px solid var(--color-primary-highlight);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-primary);
}

.team-name {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.team-role {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
  font-family: var(--font-body);
  letter-spacing: 0.02em;
  line-height: 1.6;
}

.team-credentials {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
  font-style: italic;
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-divider);
}

.team-specialization {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}

.team-specialization strong {
  color: var(--color-text);
  font-weight: 600;
}

/* ============================================
   CONTACT
   ============================================ */
.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.contact-item {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
}

.contact-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  flex-shrink: 0;
}

.contact-item__label {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-faint);
  font-family: var(--font-body);
  margin-bottom: var(--space-1);
}

.contact-item__value {
  font-size: var(--text-base);
  color: var(--color-text);
  font-weight: 500;
}

.contact-item__value a {
  color: var(--color-primary);
  text-decoration: none;
}

.contact-item__value a:hover {
  text-decoration: underline;
}

/* ============================================
   ENQUIRY FORM
   ============================================ */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}

.form-label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-muted);
  font-family: var(--font-body);
}

.form-input,
.form-select,
.form-textarea {
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  color: var(--color-text);
  font-family: var(--font-body);
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive);
  width: 100%;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px oklch(from var(--color-primary) l c h / 0.12);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

/* ============================================
   BMT PROCESS STEPPER
   ============================================ */
.stepper {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
}

.stepper::before {
  content: '';
  position: absolute;
  left: 23px;
  top: 24px;
  bottom: 24px;
  width: 2px;
  background: var(--color-divider);
}

.step {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: var(--space-5);
  position: relative;
  padding-bottom: var(--space-8);
}

.step:last-child {
  padding-bottom: 0;
}

.step__marker {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
  color: #fff;
  font-variant-numeric: tabular-nums;
}

.step__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
  color: var(--color-text);
  margin-bottom: var(--space-3);
  padding-top: var(--space-3);
}

.step__body {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.75;
}

.step__body p + p {
  margin-top: var(--space-3);
}

.step__body ul {
  list-style: none;
  padding-left: 0;
  margin-top: var(--space-3);
}

.step__body li {
  padding-left: var(--space-5);
  position: relative;
  margin-bottom: var(--space-2);
}

.step__body li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 600;
}

/* ============================================
   PHYSICIAN TABLE
   ============================================ */
.referral-table {
  width: 100%;
  font-size: var(--text-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.referral-table th {
  background: var(--color-primary);
  color: #fff;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: var(--space-3) var(--space-5);
  text-align: left;
}

.referral-table td {
  padding: var(--space-3) var(--space-5);
  border-top: 1px solid var(--color-divider);
  color: var(--color-text-muted);
  line-height: 1.5;
  vertical-align: top;
}

.referral-table tr:nth-child(even) td {
  background: var(--color-surface-2);
}

.referral-table td strong {
  color: var(--color-text);
  font-weight: 700;
}

/* ============================================
   FOUNDATION / POEM
   ============================================ */
.poem-block {
  border-left: 3px solid var(--color-accent);
  padding: var(--space-6) var(--space-8);
  background: var(--color-accent-light);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  margin: var(--space-8) 0;
}

.poem-block p {
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--text-lg);
  color: var(--color-text);
  line-height: 1.8;
}

/* ============================================
   PAGE HERO (inner pages)
   ============================================ */
.page-hero {
  background: var(--color-surface);
  padding: calc(4rem + var(--space-8)) 0 var(--space-10);
  box-shadow: var(--elevation-1);
  position: relative;
  z-index: 1;
}

.page-hero__overline {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
  font-family: var(--font-body);
}

.page-hero__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.page-hero__sub {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 55ch;
  line-height: 1.6;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--color-primary-active, #8B1426);
  color: oklch(0.85 0.02 0);
  padding: var(--space-16) 0 var(--space-8);
}

[data-theme="dark"] .footer {
  background: #1A0A10;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

.footer__brand-name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: #fff;
  margin-bottom: var(--space-2);
}

.footer__brand-sub {
  font-size: var(--text-xs);
  color: oklch(0.7 0.02 0);
  margin-bottom: var(--space-6);
  line-height: 1.6;
}

.footer__phone {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-accent);
  text-decoration: none;
  display: block;
  margin-bottom: var(--space-2);
}

.footer__phone:hover {
  color: var(--color-accent-hover);
}

.footer__col-title {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: oklch(0.65 0.02 0);
  margin-bottom: var(--space-5);
  font-family: var(--font-body);
}

.footer__links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__links a {
  font-size: var(--text-sm);
  color: oklch(0.75 0.02 0);
  text-decoration: none;
  transition: color var(--transition-interactive);
}

.footer__links a:hover {
  color: #fff;
}

.footer__hours-item {
  font-size: var(--text-sm);
  color: oklch(0.75 0.02 0);
  margin-bottom: var(--space-2);
}

.footer__hours-item strong {
  color: oklch(0.88 0.02 0);
}

.footer__bottom {
  border-top: 1px solid oklch(0.35 0.03 0);
  padding-top: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.footer__copy {
  font-size: var(--text-xs);
  color: oklch(0.6 0.02 0);
}

/* ============================================
   WHATSAPP FAB
   ============================================ */
.whatsapp-fab {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: 50;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  background: #25D366;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  text-decoration: none;
  transition: transform var(--transition-interactive), box-shadow var(--transition-interactive);
}

.whatsapp-fab:hover {
  transform: scale(1.08) translateY(-2px);
  box-shadow: 0 6px 28px rgba(37, 211, 102, 0.5);
}

/* ============================================
   PROSE / CONTENT BLOCKS
   ============================================ */
.prose {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.75;
}

.prose p { margin-bottom: var(--space-4); }
.prose p:last-child { margin-bottom: 0; }
.prose ul, .prose ol {
  padding-left: var(--space-6);
  margin-bottom: var(--space-4);
}
.prose li { margin-bottom: var(--space-2); }
.prose strong { color: var(--color-text); font-weight: 700; }
.prose h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-text);
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
}
.prose h4 {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-base);
  color: var(--color-text);
  margin-top: var(--space-5);
  margin-bottom: var(--space-2);
}

/* ============================================
   GRID UTILITIES
   ============================================ */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

@media (max-width: 900px) {
  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .team-card { grid-template-columns: 1fr; text-align: center; }
  .team-card__photo { justify-content: center; }
  .team-card__photo img { width: 150px; height: 185px; }
  .team-avatar { width: 150px; height: 185px; font-size: var(--text-xl); }
}

@media (max-width: 600px) {
  .grid-3 { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; }
  .cta-bar__inner { flex-direction: column; }
  .stats-bar__grid { grid-template-columns: 1fr 1fr; gap: var(--space-6); }
}

/* Skip link */
.skip-link {
  position: fixed;
  top: -100%;
  left: var(--space-4);
  z-index: 999;
  background: var(--color-primary);
  color: #fff;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  font-weight: 700;
  text-decoration: none;
  font-size: var(--text-sm);
}
.skip-link:focus {
  top: var(--space-4);
}

/* Info notice */
.info-notice {
  background: var(--color-primary-light);
  border: 1px solid var(--color-primary-highlight);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  font-size: var(--text-sm);
  color: var(--color-primary);
  margin-bottom: var(--space-6);
}

/* Divider */
.divider {
  border: none;
  border-top: 1px solid var(--color-divider);
  margin: var(--space-8) 0;
}

/* Highlight box */
.highlight-box {
  background: var(--color-accent-light);
  border: 1px solid var(--color-accent-highlight);
  border-left: 4px solid var(--color-accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: var(--space-4) var(--space-6);
  margin: var(--space-5) 0;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}

.highlight-box strong {
  color: var(--color-accent);
}

/* ============================================
   PAGE TRANSITIONS
   ============================================ */
.page {
  opacity: 0;
  transition: opacity 0.3s ease;
}

.page.active {
  opacity: 1;
}

/* ============================================
   THEME COLOR TRANSITIONS
   ============================================ */
body,
.nav,
.card,
.accordion-header,
.accordion-body,
.footer,
.page-hero,
.stats-bar,
.cta-bar,
.form-input,
.form-select,
.form-textarea,
.testimonial-card,
.condition-card {
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

/* ============================================
   TESTIMONIAL CARD HOVER + AVATARS
   ============================================ */
.testimonial-card {
  transition: box-shadow var(--transition-interactive), transform var(--transition-interactive);
}

.testimonial-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.testimonial-card__header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: 0;
}

.testimonial-card__avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--color-primary-light);
  border: 2px solid var(--color-primary-highlight);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-primary);
}

.testimonial-card__quote-mark {
  font-family: var(--font-display);
  font-size: 3rem;
  line-height: 1;
  color: var(--color-primary-highlight);
  margin-bottom: calc(-1 * var(--space-4));
  display: block;
}

/* ============================================
   BACK TO TOP BUTTON
   ============================================ */
.back-to-top {
  position: fixed;
  bottom: calc(var(--space-6) + 70px);
  right: var(--space-6);
  z-index: 50;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease, background-color var(--transition-interactive), color var(--transition-interactive);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

/* ============================================
   BREADCRUMBS
   ============================================ */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-family: var(--font-body);
  color: var(--color-text-faint);
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
}

.breadcrumb a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-interactive);
}

.breadcrumb a:hover {
  color: var(--color-primary);
}

.breadcrumb__sep {
  color: var(--color-text-faint);
  font-size: var(--text-xs);
}

.breadcrumb__current {
  color: var(--color-primary);
  font-weight: 600;
}

/* ============================================
   TABLE ROW HOVER
   ============================================ */
.referral-table tbody tr {
  transition: background-color var(--transition-interactive);
}

.referral-table tbody tr:hover td {
  background: var(--color-primary-light);
}

/* ============================================
   MOBILE CONDITION PILLS
   ============================================ */
.condition-pills {
  display: none;
}

@media (max-width: 1024px) {
  .condition-pills {
    display: flex;
    gap: var(--space-2);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding: var(--space-4) 0;
    margin: 0 calc(-1 * clamp(var(--space-4), 4vw, var(--space-16)));
    padding-inline: clamp(var(--space-4), 4vw, var(--space-16));
  }

  .condition-pills::-webkit-scrollbar {
    display: none;
  }

  .condition-pill {
    flex-shrink: 0;
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    border: 1.5px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text-muted);
    font-family: var(--font-body);
    font-size: var(--text-xs);
    font-weight: 600;
    text-decoration: none;
    white-space: nowrap;
    transition: background-color var(--transition-interactive), color var(--transition-interactive), border-color var(--transition-interactive);
  }

  .condition-pill:hover,
  .condition-pill.active {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
  }
}

/* ============================================
   STAT COUNTER ANIMATION
   ============================================ */
.stats-bar__number {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.stats-bar.animate-in .stats-bar__number {
  opacity: 1;
  transform: translateY(0);
}

.stats-bar__item:nth-child(2) .stats-bar__number { transition-delay: 0.15s; }
.stats-bar__item:nth-child(3) .stats-bar__number { transition-delay: 0.3s; }
.stats-bar__item:nth-child(4) .stats-bar__number { transition-delay: 0.45s; }

/* ============================================
   FORM FEEDBACK
   ============================================ */
.form-success {
  display: none;
  background: oklch(from var(--color-success) l c h / 0.1);
  border: 1px solid var(--color-success);
  border-radius: var(--radius-md);
  padding: var(--space-5) var(--space-6);
  text-align: center;
  margin-top: var(--space-4);
}

.form-success.show {
  display: block;
  animation: fadeSlideIn 0.4s ease;
}

.form-success__icon {
  font-size: 2rem;
  margin-bottom: var(--space-2);
}

.form-success__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
  color: var(--color-success);
  margin-bottom: var(--space-2);
}

.form-success__text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.form-error {
  color: var(--color-error);
  font-size: var(--text-xs);
  margin-top: var(--space-1);
  display: none;
}

.form-group.has-error .form-input,
.form-group.has-error .form-select,
.form-group.has-error .form-textarea {
  border-color: var(--color-error);
}

.form-group.has-error .form-error {
  display: block;
}

@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ============================================
   SEARCH
   ============================================ */
.search-wrapper {
  position: relative;
  max-width: 480px;
  margin: 0 auto var(--space-8);
}

.search-input {
  width: 100%;
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: var(--space-3) var(--space-5) var(--space-3) var(--space-12);
  font-size: var(--text-sm);
  font-family: var(--font-body);
  color: var(--color-text);
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive);
}

.search-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px oklch(from var(--color-primary) l c h / 0.12);
}

.search-input::placeholder {
  color: var(--color-text-faint);
}

.search-icon {
  position: absolute;
  left: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-faint);
  pointer-events: none;
}

.search-results {
  position: absolute;
  top: calc(100% + var(--space-2));
  left: 0;
  right: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  max-height: 320px;
  overflow-y: auto;
  z-index: 300;
  display: none;
}

.search-results.open {
  display: block;
}

.search-result-item {
  display: block;
  padding: var(--space-3) var(--space-5);
  text-decoration: none;
  border-bottom: 1px solid var(--color-divider);
  transition: background-color var(--transition-interactive);
}

.search-result-item:last-child {
  border-bottom: none;
}

.search-result-item:hover {
  background: var(--color-primary-light);
}

.search-result-item__title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
}

.search-result-item__context {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

.search-result-item__tag {
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin-top: var(--space-1);
}

.search-no-results {
  padding: var(--space-5);
  text-align: center;
  font-size: var(--text-sm);
  color: var(--color-text-faint);
}

/* ============================================
   SECTION ICONS
   ============================================ */
.section-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background: var(--color-primary-light);
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.page-hero .section-icon {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

/* ============================================
   READING PROGRESS BAR
   ============================================ */
.reading-progress {
  position: fixed;
  top: 4rem;
  left: 0;
  height: 3px;
  background: var(--color-accent);
  z-index: 99;
  width: 0;
  transition: width 50ms linear;
}

/* (Mobile nav transitions are defined in the main .nav__mobile block above) */

/* ============================================
   BEAUTIFICATION: Scroll Reveal
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ============================================
   BEAUTIFICATION: Hero Enhancements
   ============================================ */
.hero {
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  border-radius: 0;
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  background: radial-gradient(circle, rgba(196, 30, 58, 0.08) 0%, transparent 70%);
  pointer-events: none;
  animation: heroFloat 8s ease-in-out infinite;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  border-radius: 0;
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  background: radial-gradient(circle, rgba(196, 30, 58, 0.12) 0%, transparent 70%);
  pointer-events: none;
  animation: heroFloat 10s ease-in-out infinite reverse;
}

@keyframes heroFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(30px, -20px) scale(1.05); }
}

.hero__scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: rgba(255,255,255,0.5);
  font-size: var(--text-xs);
  font-family: var(--font-body);
  letter-spacing: 0.05em;
  animation: scrollBounce 2s ease-in-out infinite;
}

.hero__scroll-hint svg {
  opacity: 0.5;
}

@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

.hero__title em {
  background: linear-gradient(135deg, #E8E8E8 0%, #FF3B5C 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============================================
   BEAUTIFICATION: Section Headers
   ============================================ */
.section-title {
  position: relative;
}

.section-header .overline {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.section-header .overline::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 0;
}

/* ============================================
   BEAUTIFICATION: Stats Bar Enhancement
   ============================================ */
.stats-bar {
  position: relative;
}

.stats-bar::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--color-accent) 50%, transparent 100%);
  opacity: 0.3;
}

.stats-bar__number {
  background: linear-gradient(180deg, var(--color-text) 60%, var(--color-text-muted) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============================================
   BEAUTIFICATION: Card Polish
   ============================================ */
.card {
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.card:hover {
  box-shadow: var(--shadow-lg);
}

.condition-card {
  position: relative;
  overflow: hidden;
}

.condition-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.condition-card:hover::before {
  transform: scaleX(1);
}

.condition-card__tag {
  position: relative;
  overflow: hidden;
}

/* Category color coding for condition cards */
.condition-card[href*="thalassemia"] .condition-card__tag,
.condition-card[href*="sickle-cell"] .condition-card__tag {
  background: linear-gradient(135deg, #FDE8EC, #F5BDC7);
  color: #C41E3A;
}

.condition-card[href*="leukemia"] .condition-card__tag,
.condition-card[href*="aml"] .condition-card__tag,
.condition-card[href*="all-"] .condition-card__tag,
.condition-card[href*="cml"] .condition-card__tag {
  background: linear-gradient(135deg, #F0F0F0, #D8D8D8);
  color: #606060;
}

.condition-card[href*="lymphoma"] .condition-card__tag,
.condition-card[href*="hodgkin"] .condition-card__tag {
  background: linear-gradient(135deg, #FFE8EE, #FFD0DA);
  color: #FF3B5C;
}

/* Dark mode overrides for condition card tags */
[data-theme="dark"] .condition-card[href*="thalassemia"] .condition-card__tag,
[data-theme="dark"] .condition-card[href*="sickle-cell"] .condition-card__tag {
  background: linear-gradient(135deg, #3A1520, #4A1A28);
  color: #E85D75;
}

[data-theme="dark"] .condition-card[href*="leukemia"] .condition-card__tag,
[data-theme="dark"] .condition-card[href*="aml"] .condition-card__tag,
[data-theme="dark"] .condition-card[href*="all-"] .condition-card__tag,
[data-theme="dark"] .condition-card[href*="cml"] .condition-card__tag {
  background: linear-gradient(135deg, #2A2A35, #35354A);
  color: #9494A8;
}

[data-theme="dark"] .condition-card[href*="lymphoma"] .condition-card__tag,
[data-theme="dark"] .condition-card[href*="hodgkin"] .condition-card__tag {
  background: linear-gradient(135deg, #3A1520, #4A1A28);
  color: #FF6B82;
}

/* ============================================
   BEAUTIFICATION: Testimonial Polish
   ============================================ */
.testimonial-card {
  position: relative;
  overflow: hidden;
}

.testimonial-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.testimonial-card:hover::after {
  transform: scaleX(1);
}

.testimonial-card__quote-mark {
  background: linear-gradient(180deg, var(--color-primary-highlight), transparent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: 64px;
  line-height: 1;
  margin-bottom: var(--space-2);
}

/* ============================================
   BEAUTIFICATION: Doctor Profile Enhancement
   ============================================ */
.physician-card {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.physician-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.physician-avatar {
  position: relative;
}

.physician-avatar::after {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 0;
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  z-index: -1;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.physician-card:hover .physician-avatar::after {
  opacity: 1;
}

/* ============================================
   BEAUTIFICATION: Footer Enhancement
   ============================================ */
.footer {
  position: relative;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-primary), var(--color-accent), var(--color-primary), transparent);
  opacity: 0.4;
}

.footer__social {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.08);
  color: oklch(0.75 0.02 0);
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
  text-decoration: none;
}

.footer__social-link:hover {
  background: var(--color-primary);
  color: #fff;
  transform: translateY(-2px);
}

.footer__newsletter {
  margin-top: var(--space-4);
}

.footer__newsletter-form {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-2);
}

.footer__newsletter-input {
  flex: 1;
  padding: var(--space-2) var(--space-3);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.06);
  color: #fff;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  outline: none;
  transition: border-color 0.2s ease;
}

.footer__newsletter-input::placeholder {
  color: oklch(0.55 0.02 0);
}

.footer__newsletter-input:focus {
  border-color: var(--color-primary);
}

.footer__newsletter-btn {
  padding: var(--space-2) var(--space-4);
  border: none;
  border-radius: var(--radius-md);
  background: var(--color-primary);
  color: #fff;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s ease;
  white-space: nowrap;
}

.footer__newsletter-btn:hover {
  background: var(--color-primary-hover);
}

/* ============================================
   BEAUTIFICATION: Accordion Polish
   ============================================ */
.accordion__trigger {
  position: relative;
}

.accordion__trigger::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 0;
  background: var(--color-primary);
  border-radius: 0;
  transition: height 0.3s ease;
}

.accordion__item.open .accordion__trigger::before {
  height: 60%;
}

/* ============================================
   BEAUTIFICATION: Button Glow Effect
   ============================================ */
.btn--accent {
  position: relative;
  overflow: hidden;
}

.btn--accent::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255,255,255,0.15);
  border-radius: 0;
  transform: translate(-50%, -50%);
  transition: width 0.6s ease, height 0.6s ease;
}

.btn--accent:hover::before {
  width: 300px;
  height: 300px;
}

.btn--primary {
  position: relative;
  overflow: hidden;
}

.btn--primary::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255,255,255,0.1);
  border-radius: 0;
  transform: translate(-50%, -50%);
  transition: width 0.6s ease, height 0.6s ease;
}

.btn--primary:hover::before {
  width: 300px;
  height: 300px;
}

/* ============================================
   BEAUTIFICATION: Process Stepper Enhancement
   ============================================ */
.stepper__dot {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.stepper__step:hover .stepper__dot {
  transform: scale(1.2);
  box-shadow: 0 0 0 4px var(--color-primary-light);
}

/* ============================================
   BEAUTIFICATION: Divider Accents
   ============================================ */
.section + .section {
  position: relative;
}

/* ============================================
   BEAUTIFICATION: Nav Glassmorphism when scrolled
   ============================================ */
.nav.scrolled {
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background-color: rgba(255,255,255,0.85) !important;
}

[data-theme="dark"] .nav.scrolled {
  background-color: rgba(17,17,24,0.85) !important;
}

/* ============================================
   BEAUTIFICATION: Subtle Background Pattern
   ============================================ */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--color-divider) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-divider) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity: 0.3;
  pointer-events: none;
  z-index: -1;
}

/* ============================================
   BEAUTIFICATION: Prose Enhancements
   ============================================ */
.prose p:first-of-type::first-line {
  color: var(--color-text);
  font-weight: 500;
}

.highlight-box {
  position: relative;
  border-left: 3px solid var(--color-accent);
}

/* ============================================
   BEAUTIFICATION: WhatsApp FAB Polish
   ============================================ */
.whatsapp-fab {
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.35);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.whatsapp-fab:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 28px rgba(37, 211, 102, 0.5);
}

/* ============================================
   BEAUTIFICATION: Selection Colors
   ============================================ */
::selection {
  background: var(--color-primary);
  color: #fff;
}

/* ============================================
   MOTION: Hero Staggered Entrance (1B)
   ============================================ */
.hero__overline,
.hero__title,
.hero__subtitle,
.hero__cta-group {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero--entered .hero__overline   { opacity: 1; transform: translateY(0); transition-delay: 0.1s; }
.hero--entered .hero__title      { opacity: 1; transform: translateY(0); transition-delay: 0.25s; }
.hero--entered .hero__subtitle   { opacity: 1; transform: translateY(0); transition-delay: 0.4s; }
.hero--entered .hero__cta-group  { opacity: 1; transform: translateY(0); transition-delay: 0.55s; }

@media (prefers-reduced-motion: reduce) {
  .hero__overline,
  .hero__title,
  .hero__subtitle,
  .hero__cta-group {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ============================================
   MOTION: Tab Panel Fade+Slide (1C)
   ============================================ */
@keyframes tabFadeSlide {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.tabs__panel.active {
  animation: tabFadeSlide var(--transition-structural) both;
}

@media (prefers-reduced-motion: reduce) {
  .tabs__panel.active {
    animation: none;
  }
}

/* ============================================
   MOTION: Page Content Entrance Stagger (1D)
   ============================================ */
.page-section-stagger {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.page-section-stagger.stagger-entered {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .page-section-stagger {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ============================================
   MOTION: Mobile Nav Item Stagger (1E)
   ============================================ */
.nav__mobile-link,
.nav__mobile-section {
  opacity: 0;
  transform: translateX(-12px);
  transition: opacity 0.25s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.25s cubic-bezier(0.16, 1, 0.3, 1),
              color var(--transition-interactive),
              background-color var(--transition-interactive);
}

.nav__mobile.open .nav__mobile-link,
.nav__mobile.open .nav__mobile-section {
  opacity: 1;
  transform: translateX(0);
}

/* Stagger each child: 20ms between items */
.nav__mobile.open > :nth-child(1)  { transition-delay: 0.02s; }
.nav__mobile.open > :nth-child(2)  { transition-delay: 0.04s; }
.nav__mobile.open > :nth-child(3)  { transition-delay: 0.06s; }
.nav__mobile.open > :nth-child(4)  { transition-delay: 0.08s; }
.nav__mobile.open > :nth-child(5)  { transition-delay: 0.10s; }
.nav__mobile.open > :nth-child(6)  { transition-delay: 0.12s; }
.nav__mobile.open > :nth-child(7)  { transition-delay: 0.14s; }
.nav__mobile.open > :nth-child(8)  { transition-delay: 0.16s; }
.nav__mobile.open > :nth-child(9)  { transition-delay: 0.18s; }
.nav__mobile.open > :nth-child(10) { transition-delay: 0.20s; }
.nav__mobile.open > :nth-child(11) { transition-delay: 0.22s; }
.nav__mobile.open > :nth-child(12) { transition-delay: 0.24s; }
.nav__mobile.open > :nth-child(13) { transition-delay: 0.26s; }
.nav__mobile.open > :nth-child(14) { transition-delay: 0.28s; }
.nav__mobile.open > :nth-child(15) { transition-delay: 0.30s; }
.nav__mobile.open > :nth-child(16) { transition-delay: 0.32s; }
.nav__mobile.open > :nth-child(17) { transition-delay: 0.34s; }
.nav__mobile.open > :nth-child(18) { transition-delay: 0.36s; }
.nav__mobile.open > :nth-child(19) { transition-delay: 0.38s; }
.nav__mobile.open > :nth-child(20) { transition-delay: 0.40s; }

@media (prefers-reduced-motion: reduce) {
  .nav__mobile-link,
  .nav__mobile-section {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ============================================
   MOTION: Nav Active Underline (1F)
   ============================================ */
.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: var(--space-3);
  right: var(--space-3);
  height: 2px;
  background: var(--color-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 250ms cubic-bezier(0.16, 1, 0.3, 1);
}

.nav__link.active::after {
  transform: scaleX(1);
}

.nav__link:hover::after {
  transform: scaleX(0.6);
}

.nav__link.active:hover::after {
  transform: scaleX(1);
}

@media (prefers-reduced-motion: reduce) {
  .nav__link::after {
    transition: none;
  }
}

/* ============================================
   MOTION: Stats Bar Entrance (1G)
   ============================================ */
.stats-bar {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.stats-bar.animate-in {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .stats-bar {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ============================================
   MOTION: Overline Line Draw-In (1H)
   ============================================ */
.section-header .overline::before {
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1) 0.2s;
}

.revealed .overline::before,
.reveal.revealed .section-header .overline::before {
  transform: scaleX(1);
}

@media (prefers-reduced-motion: reduce) {
  .section-header .overline::before {
    transform: scaleX(1);
    transition: none;
  }
}

/* ============================================
   MOTION: Form Validation Shake (1I)
   ============================================ */
@keyframes formShake {
  0%   { transform: translateX(0); }
  15%  { transform: translateX(6px); }
  30%  { transform: translateX(-5px); }
  45%  { transform: translateX(3px); }
  60%  { transform: translateX(-2px); }
  75%  { transform: translateX(1px); }
  100% { transform: translateX(0); }
}

.form-group.has-error .form-input,
.form-group.has-error .form-select,
.form-group.has-error .form-textarea {
  animation: formShake 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

@media (prefers-reduced-motion: reduce) {
  .form-group.has-error .form-input,
  .form-group.has-error .form-select,
  .form-group.has-error .form-textarea {
    animation: none;
  }
}

/* ============================================
   MOTION: Condition Detail Entrance (1J)
   ============================================ */
.condition-detail-enter {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.condition-detail-enter.entered {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .condition-detail-enter {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ============================================
   ALIGNMENT: CTA Bar Spacing (2B)
   ============================================ */
.cta-bar {
  padding-block: clamp(var(--space-10), 6vw, var(--space-16));
}

/* ============================================
   ALIGNMENT: Testimonial Card Equal Heights (2C)
   ============================================ */
.testimonial-card {
  display: flex;
  flex-direction: column;
}

.testimonial-card__quote {
  flex: 1;
}

/* ============================================
   ALIGNMENT: Mobile Hero Spacing (2D)
   ============================================ */
@media (max-width: 768px) {
  .hero__content {
    padding-top: 6rem;
    padding-bottom: var(--space-16);
  }

  .hero__cta-group {
    flex-direction: column;
    align-items: stretch;
  }

  .hero__cta-group .btn {
    text-align: center;
    justify-content: center;
  }
}

/* ============================================
   DEPTH: 3D Layer System
   ============================================ */

/* Layer 2 — Cards float above the surface */
.card,
.testimonial-card,
.category-card,
.condition-card {
  box-shadow: var(--elevation-1);
  transition: box-shadow var(--transition-structural),
              transform var(--transition-structural),
              border-color var(--transition-interactive);
}

.card:hover,
.testimonial-card:hover,
.category-card:hover,
.condition-card:hover {
  box-shadow: var(--elevation-2);
  transform: translateY(-2px);
}

/* Layer 3 — Floating overlays */
.nav__dropdown-menu,
.nav__mega-menu,
.nav__mobile,
.search-results {
  box-shadow: var(--elevation-3);
}

/* Layer 1 — Stats bar as a raised ribbon */
.stats-bar {
  background: var(--color-surface);
  color: var(--color-text);
  box-shadow: var(--elevation-1);
  position: relative;
  z-index: 1;
}
.stats-bar .stats-bar__number {
  color: var(--color-text);
}
.stats-bar .stats-bar__label {
  color: var(--color-text-muted);
  opacity: 1;
}
.stats-bar .stats-bar__number span {
  color: var(--color-primary);
  -webkit-text-fill-color: var(--color-primary);
}

/* Recessed sections — alt sections feel inset */
.section--alt {
  box-shadow: inset 0 1px 0 var(--color-divider),
              inset 0 -1px 0 var(--color-divider);
}

/* CTA bar — raised above content flow */
.cta-bar {
  box-shadow: var(--elevation-1);
  position: relative;
  z-index: 1;
}

/* Form container — elevated panel feel */
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  box-shadow: 0 0 0 3px oklch(from var(--color-primary) l c h / 0.12),
              var(--elevation-1);
}

/* Accordion — subtle elevation when expanded */
.accordion-header[aria-expanded="true"] {
  box-shadow: var(--elevation-1);
  position: relative;
  z-index: 1;
}

@media (prefers-reduced-motion: reduce) {
  .card:hover,
  .testimonial-card:hover,
  .category-card:hover,
  .condition-card:hover {
    transform: none;
  }
}

/* ============================================
   FLOATING 3D ELEMENTS SYSTEM
   ============================================ */

/* --- Perspective + Layer Containers --- */
.f3d-perspective {
  perspective: 1200px;
  perspective-origin: 50% 50%;
}

.f3d-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
  contain: layout style;
  opacity: var(--f3d-opacity, 1);
}

.f3d-item {
  position: absolute;
  transform: translate3d(var(--f3d-mouse-x, 0px), var(--f3d-parallax-y, 0px), 0);
  will-change: auto;
  transition: transform 0.15s linear;
}

/* --- Base Shape --- */
.f3d-shape {
  display: block;
  pointer-events: none;
}

/* --- Shape: Erythrocyte (Red Blood Cell) --- */
.f3d-shape--erythrocyte {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: radial-gradient(circle at 50% 50%,
    transparent 28%,
    oklch(0.55 0.18 25 / 0.12) 32%,
    oklch(0.55 0.18 25 / 0.18) 58%,
    oklch(0.55 0.18 25 / 0.10) 100%);
  box-shadow: inset 0 0 10px oklch(0.55 0.18 25 / 0.12);
}

/* --- Shape: Platelet --- */
.f3d-shape--platelet {
  width: 18px;
  height: 18px;
  border-radius: 40% 60% 55% 45% / 55% 45% 60% 40%;
  background: oklch(0.75 0.08 25 / 0.15);
  box-shadow: 0 0 6px oklch(0.55 0.18 25 / 0.06);
}

/* --- Shape: Molecule --- */
.f3d-shape--molecule {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: oklch(0.65 0.10 25 / 0.08);
  border: 1.5px solid oklch(0.55 0.18 25 / 0.10);
  position: relative;
}

.f3d-shape--molecule::before,
.f3d-shape--molecule::after {
  content: '';
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: oklch(0.55 0.18 25 / 0.14);
}

.f3d-shape--molecule::before {
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
}

.f3d-shape--molecule::after {
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
}

/* --- Shape: Stem Cell --- */
.f3d-shape--stemcell {
  width: 32px;
  height: 32px;
  border-radius: 45% 55% 50% 50% / 50% 48% 52% 50%;
  background: radial-gradient(circle at 40% 40%,
    oklch(0.70 0.06 250 / 0.18) 20%,
    oklch(0.65 0.08 250 / 0.10) 50%,
    oklch(0.60 0.10 250 / 0.06) 100%);
  border: 1px solid oklch(0.60 0.08 250 / 0.08);
}

/* --- Shape: Hexagon (brand shape) --- */
.f3d-shape--hexagon {
  width: 28px;
  height: 28px;
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  background: oklch(0.55 0.18 25 / 0.10);
}

/* --- Shape: Pulse Dot --- */
.f3d-shape--pulse {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: oklch(0.55 0.18 25 / 0.18);
  animation: f3d-pulse 2s ease-in-out infinite;
}

@keyframes f3d-pulse {
  0%, 100% { box-shadow: 0 0 0 0 oklch(0.55 0.18 25 / 0.12); }
  50% { box-shadow: 0 0 0 8px oklch(0.55 0.18 25 / 0); }
}

/* --- Shape: DNA (SVG — styled via CSS) --- */
.f3d-shape--dna {
  color: oklch(0.55 0.18 25 / 0.18);
  overflow: visible;
}

/* --- Depth Layers --- */
.f3d-depth-far .f3d-shape {
  opacity: 0.4;
  transform: scale(0.6);
}

.f3d-depth-mid .f3d-shape {
  opacity: 0.55;
}

.f3d-depth-near .f3d-shape {
  opacity: 0.7;
  transform: scale(1.2);
}

/* --- Float Keyframes (3 distinct paths) --- */
@keyframes f3d-float-far {
  0%   { transform: translate3d(0, 0, -200px) rotate(0deg); }
  25%  { transform: translate3d(15px, -20px, -200px) rotate(5deg); }
  50%  { transform: translate3d(-10px, -35px, -200px) rotate(-3deg); }
  75%  { transform: translate3d(20px, -15px, -200px) rotate(7deg); }
  100% { transform: translate3d(0, 0, -200px) rotate(0deg); }
}

@keyframes f3d-float-mid {
  0%   { transform: translate3d(0, 0, -80px) rotate(0deg); }
  33%  { transform: translate3d(-20px, -25px, -80px) rotate(-5deg); }
  66%  { transform: translate3d(15px, -40px, -80px) rotate(4deg); }
  100% { transform: translate3d(0, 0, -80px) rotate(0deg); }
}

@keyframes f3d-float-near {
  0%   { transform: translate3d(0, 0, 50px) rotate(0deg); }
  50%  { transform: translate3d(10px, -15px, 50px) rotate(3deg); }
  100% { transform: translate3d(0, 0, 50px) rotate(0deg); }
}

.f3d-depth-far {
  animation: f3d-float-far 12s ease-in-out infinite;
  transform-style: preserve-3d;
}

.f3d-depth-mid {
  animation: f3d-float-mid 9s ease-in-out infinite;
  transform-style: preserve-3d;
}

.f3d-depth-near {
  animation: f3d-float-near 7s ease-in-out infinite;
  transform-style: preserve-3d;
}

/* --- Hero Overrides (dark bg → lighter shapes) --- */
.hero .f3d-shape--erythrocyte {
  background: radial-gradient(circle at 50% 50%,
    transparent 28%,
    oklch(0.82 0.10 25 / 0.14) 32%,
    oklch(0.82 0.10 25 / 0.22) 58%,
    oklch(0.82 0.10 25 / 0.08) 100%);
  box-shadow: inset 0 0 10px oklch(0.80 0.10 25 / 0.10);
}

.hero .f3d-shape--platelet {
  background: oklch(0.85 0.06 25 / 0.14);
}

.hero .f3d-shape--hexagon {
  background: oklch(0.85 0.06 25 / 0.10);
}

.hero .f3d-shape--dna {
  color: oklch(0.85 0.06 25 / 0.18);
}

.hero .f3d-shape--molecule {
  background: oklch(0.80 0.06 25 / 0.08);
  border-color: oklch(0.80 0.08 25 / 0.10);
}

.hero .f3d-shape--molecule::before,
.hero .f3d-shape--molecule::after {
  background: oklch(0.85 0.06 25 / 0.14);
}

/* Stats bar + CTA bar overrides (dark bg) */
.stats-bar .f3d-shape--platelet,
.stats-bar .f3d-shape--hexagon,
.cta-bar .f3d-shape--pulse,
.cta-bar .f3d-shape--hexagon {
  opacity: 0.3;
}

.stats-bar .f3d-shape--hexagon,
.cta-bar .f3d-shape--hexagon {
  background: oklch(0.90 0.02 0 / 0.08);
}

/* --- Mobile: smaller shapes --- */
@media (max-width: 768px) {
  .f3d-shape--erythrocyte { width: 28px; height: 28px; }
  .f3d-shape--molecule { width: 26px; height: 26px; }
  .f3d-shape--stemcell { width: 24px; height: 24px; }
  .f3d-shape--hexagon { width: 20px; height: 20px; }
  .f3d-shape--dna { transform: scale(0.7); }
  .f3d-depth-near .f3d-shape { opacity: 0.5; }
}

/* --- Reduced Motion: remove entirely --- */
@media (prefers-reduced-motion: reduce) {
  .f3d-layer {
    display: none !important;
  }
}

/* ============================================
   PAGE PRELOADER — Blood Cell Rotation
   Adapted from Uiverse.io (narmesh_sah)
   ============================================ */
.preloader-overlay {
  position: fixed;
  inset: 0;
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.preloader-overlay.loaded {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.preloader {
  position: relative;
  width: 160px;
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  filter: drop-shadow(0 0 6px oklch(from var(--color-primary) l c h / 0.3));
}

.preloader__brand {
  position: absolute;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-sm);
  color: var(--color-text);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  z-index: 2;
}

.preloader .cell {
  position: absolute;
  aspect-ratio: 1;
  border-radius: 50%;
  background: oklch(from var(--color-primary) l c h / 0.18);
  border: 2px solid oklch(from var(--color-primary) l c h / 0.25);
  animation: preloader-orbit 5s infinite ease-in-out;
}

.preloader .cell:nth-child(2) { width: 18%; animation-delay: 0s; }
.preloader .cell:nth-child(3) { width: 22%; animation-delay: 0.8s; }
.preloader .cell:nth-child(4) { width: 26%; animation-delay: 1.3s; }
.preloader .cell:nth-child(5) { width: 30%; animation-delay: 1.8s; }
.preloader .cell:nth-child(6) { width: 14%; animation-delay: 2.3s; background: oklch(from var(--color-primary) l c h / 0.12); border-color: oklch(from var(--color-primary) l c h / 0.18); }

@keyframes preloader-orbit {
  0% { transform: rotate(0deg) translateX(40px) rotate(0deg) scale(1); opacity: 0.6; }
  50% { transform: rotate(180deg) translateX(50px) rotate(-180deg) scale(1.2); opacity: 1; }
  100% { transform: rotate(360deg) translateX(40px) rotate(-360deg) scale(1); opacity: 0.6; }
}

@media (prefers-reduced-motion: reduce) {
  .preloader-overlay { display: none !important; }
}

/* ============================================
   CONTACT FORM — Gradient Glow Border
   Adapted from Uiverse.io (DavidTM96)
   ============================================ */
.contact-form-glow {
  background-image: linear-gradient(163deg, var(--color-primary) 0%, oklch(from var(--color-primary) calc(l + 0.15) calc(c - 0.02) h) 100%);
  border-radius: calc(var(--radius-lg) + 3px);
  padding: 3px;
  transition: all 0.3s ease;
}

.contact-form-glow:hover {
  box-shadow: 0 0 30px 1px oklch(from var(--color-primary) l c h / 0.25);
}

.contact-form-glow > .card {
  border-radius: var(--radius-lg);
  transition: transform 0.2s ease;
}

.contact-form-glow:hover > .card {
  transform: scale(0.995);
}

/* ============================================
   FOOTER SOCIAL — Fill-Up Hover Effect
   Adapted from Uiverse.io (wilsondesouza)
   ============================================ */
.footer__social-link {
  position: relative;
  overflow: hidden;
}

.footer__social-link svg {
  position: relative;
  z-index: 1;
}

.footer__social-link .social-fill {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 0;
  transition: height 0.3s ease-in-out;
  z-index: 0;
  border-radius: var(--radius-full);
}

.footer__social-link:hover .social-fill {
  height: 100%;
}

.footer__social-link:hover {
  color: #fff;
}

/* WhatsApp green fill */
.footer__social-link[aria-label="WhatsApp"] .social-fill {
  background-color: #25D366;
}

/* Phone blue fill */
.footer__social-link[aria-label="Phone"] .social-fill {
  background-color: #0274b3;
}

/* Email red fill */
.footer__social-link[aria-label="Email"] .social-fill {
  background-color: var(--color-primary);
}

/* Tooltip on hover */
.footer__social-link {
  --tooltip-bg: var(--color-primary);
}

.footer__social-link[aria-label="WhatsApp"] { --tooltip-bg: #25D366; }
.footer__social-link[aria-label="Phone"] { --tooltip-bg: #0274b3; }
.footer__social-link[aria-label="Email"] { --tooltip-bg: var(--color-primary); }

.footer__social-tooltip {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--tooltip-bg);
  color: #fff;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  font-family: var(--font-body);
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  pointer-events: none;
}

.footer__social-link:hover .footer__social-tooltip {
  opacity: 1;
  visibility: visible;
  bottom: calc(100% + 12px);
}

/* ============================================
   SECTION BACKGROUND — Subtle Dot Grid
   Adapted from Uiverse.io (uiverse-astronaut)
   ============================================ */
.section--dotgrid {
  position: relative;
}

.section--dotgrid::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0.04;
  background-image: radial-gradient(var(--color-text) 8%, transparent 8%),
                     radial-gradient(var(--color-text) 8%, transparent 8%);
  background-size: 60px 60px;
  background-position: 0 0, 30px 30px;
  pointer-events: none;
  z-index: 0;
}

[data-theme="dark"] .section--dotgrid::before {
  opacity: 0.06;
}

.section--dotgrid > * {
  position: relative;
  z-index: 1;
}