/* ==========================================================================
   COCO | Teeth Whitening — Global Stylesheet
   Luxury clinical-spa design system. Mobile-first.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design tokens
   -------------------------------------------------------------------------- */
:root {
  /* Colour palette */
  --color-primary: #FFFFFF;
  --color-secondary: #F7FAFC;
  --color-accent: #00B8C4;
  --color-accent-dark: #00929C;
  --color-accent-light: #E5FBFC;
  --color-dark: #1F2937;
  --color-dark-soft: #4B5566;
  --color-success: #22C55E;
  --color-gold: #D4AF37;
  --color-border: #E4E9EE;
  --color-white: #FFFFFF;

  /* Gradients */
  --gradient-accent: linear-gradient(135deg, #00B8C4 0%, #00D8C0 100%);
  --gradient-hero: linear-gradient(180deg, #F7FAFC 0%, #FFFFFF 60%);
  --gradient-gold: linear-gradient(135deg, #D4AF37 0%, #F1D77E 100%);

  /* Typography */
  --font-heading: 'DM Sans', 'Segoe UI', sans-serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;
  --font-button: 'Manrope', 'Segoe UI', sans-serif;

  /* Spacing scale */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;

  /* Radius */
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;
  --radius-pill: 999px;

  /* Shadow */
  --shadow-sm: 0 2px 10px rgba(31, 41, 55, 0.06);
  --shadow-md: 0 12px 32px rgba(31, 41, 55, 0.08);
  --shadow-lg: 0 24px 60px rgba(31, 41, 55, 0.12);
  --shadow-accent: 0 16px 40px rgba(0, 184, 196, 0.25);

  /* Motion */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --transition-fast: 0.2s var(--ease);
  --transition-base: 0.4s var(--ease);
  --transition-slow: 0.7s var(--ease);

  /* Layout */
  --container-max: 1240px;
  --header-height: 84px;
}

/* --------------------------------------------------------------------------
   2. Reset
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

html.no-scroll,
body.no-scroll {
  overflow: hidden;
}

body {
  font-family: var(--font-body);
  color: var(--color-dark);
  background: var(--color-white);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img,
picture,
svg {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

ul,
ol {
  list-style: none;
}

input,
textarea,
select {
  font-family: inherit;
  font-size: 1rem;
  color: inherit;
}

/* --------------------------------------------------------------------------
   3. Typography
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.15;
  color: var(--color-dark);
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.25rem, 5vw, 3.75rem); }
h2 { font-size: clamp(1.85rem, 3.6vw, 2.75rem); }
h3 { font-size: clamp(1.35rem, 2.4vw, 1.75rem); }
h4 { font-size: 1.15rem; }

p { color: var(--color-dark-soft); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-button);
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent-dark);
  background: var(--color-accent-light);
  padding: 0.45rem 1rem;
  border-radius: var(--radius-pill);
}

.eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  flex-shrink: 0;
}

.section-heading {
  max-width: 640px;
  margin-bottom: var(--space-lg);
}

.section-heading h2 {
  margin-top: var(--space-sm);
}

.section-heading p {
  margin-top: var(--space-sm);
  font-size: 1.05rem;
}

.section-heading.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.text-gradient {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* --------------------------------------------------------------------------
   4. Layout helpers
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

section {
  padding-block: var(--space-2xl);
}

.section-secondary {
  background: var(--color-secondary);
}

.grid {
  display: grid;
  gap: var(--space-md);
}

@media (min-width: 640px) {
  .container { padding-inline: 2rem; }
}

@media (min-width: 1024px) {
  .container { padding-inline: 2.5rem; }
}

/* --------------------------------------------------------------------------
   5. Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  font-family: var(--font-button);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  padding: 0.95rem 1.9rem;
  border-radius: var(--radius-pill);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast), color var(--transition-fast);
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background: var(--gradient-accent);
  color: var(--color-white);
  box-shadow: var(--shadow-accent);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 46px rgba(0, 184, 196, 0.32);
}

.btn-dark {
  background: var(--color-dark);
  color: var(--color-white);
}

.btn-dark:hover {
  background: #111827;
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--color-dark);
  border: 1.5px solid var(--color-border);
}

.btn-outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-dark);
  transform: translateY(-2px);
}

.btn-white {
  background: var(--color-white);
  color: var(--color-dark);
  box-shadow: var(--shadow-md);
}

.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-whatsapp {
  background: #25D366;
  color: var(--color-white);
}

.btn-whatsapp:hover {
  background: #1ebd5a;
  transform: translateY(-2px);
}

.btn-block { width: 100%; }

.btn-sm {
  padding: 0.65rem 1.3rem;
  font-size: 0.85rem;
}

.btn-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   6. Loading screen
   -------------------------------------------------------------------------- */
#loading-screen {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--color-white);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
  transition: opacity 0.5s var(--ease), visibility 0.5s var(--ease);
}

#loading-screen.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

#loading-screen img {
  width: 96px;
  height: auto;
  animation: pulse-fade 1.4s ease-in-out infinite;
}

.loading-bar {
  width: 140px;
  height: 3px;
  border-radius: var(--radius-pill);
  background: var(--color-border);
  overflow: hidden;
}

.loading-bar::after {
  content: "";
  display: block;
  width: 40%;
  height: 100%;
  background: var(--gradient-accent);
  border-radius: var(--radius-pill);
  animation: loading-slide 1.1s ease-in-out infinite;
}

@keyframes loading-slide {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(350%); }
}

@keyframes pulse-fade {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.94); }
}

/* --------------------------------------------------------------------------
   7. Header / Navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: background var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.92);
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-shrink: 0;
}

.site-logo img {
  height: 46px;
  width: auto;
  border-radius: 10px;
}

.site-logo .logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.site-logo .logo-text strong {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-dark);
}

.site-logo .logo-text span {
  font-size: 0.68rem;
  color: var(--color-dark-soft);
  letter-spacing: 0.03em;
}

.main-nav {
  display: none;
}

.main-nav ul {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.main-nav a {
  position: relative;
  font-family: var(--font-button);
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-dark-soft);
  padding: 0.4rem 0;
  transition: color var(--transition-fast);
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  border-radius: var(--radius-pill);
  transition: width var(--transition-fast);
}

.main-nav a:hover,
.main-nav a.is-active {
  color: var(--color-dark);
}

.main-nav a:hover::after,
.main-nav a.is-active::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.header-actions .btn-primary {
  display: none;
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--color-secondary);
  flex-shrink: 0;
}

.nav-toggle span {
  width: 20px;
  height: 2px;
  background: var(--color-dark);
  border-radius: var(--radius-pill);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-toggle.is-active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.is-active span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.is-active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.mobile-nav {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-white);
  z-index: 999;
  padding: var(--space-lg) 1.25rem;
  transform: translateY(-8px);
  opacity: 0;
  visibility: hidden;
  transition: transform var(--transition-base), opacity var(--transition-base), visibility var(--transition-base);
  overflow-y: auto;
}

.mobile-nav.is-open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.mobile-nav ul {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.mobile-nav a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 0.25rem;
  border-bottom: 1px solid var(--color-border);
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-dark);
}

.mobile-nav-footer {
  margin-top: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

@media (min-width: 1024px) {
  .main-nav { display: flex; }
  .header-actions .btn-primary { display: inline-flex; }
  .nav-toggle { display: none; }
  .mobile-nav { display: none; }
}

/* --------------------------------------------------------------------------
   8. Hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  padding-top: calc(var(--header-height) + var(--space-xl));
  padding-bottom: var(--space-2xl);
  background: var(--gradient-hero);
  overflow: hidden;
}

.hero-bg-shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.35;
  z-index: 0;
  animation: float-slow 9s ease-in-out infinite;
}

.hero-bg-shape.one {
  width: 380px;
  height: 380px;
  background: var(--color-accent);
  top: -120px;
  right: -100px;
}

.hero-bg-shape.two {
  width: 280px;
  height: 280px;
  background: var(--color-gold);
  bottom: -80px;
  left: -80px;
  opacity: 0.18;
  animation-delay: 2s;
}

@keyframes float-slow {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-24px) scale(1.05); }
}

.hero .container {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--space-xl);
  align-items: center;
}

.hero-content h1 {
  margin-top: var(--space-sm);
}

.hero-content .lede {
  margin-top: var(--space-md);
  font-size: 1.1rem;
  max-width: 540px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: var(--space-lg);
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.hero-stat strong {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.9rem;
  color: var(--color-dark);
}

.hero-stat span {
  font-size: 0.85rem;
  color: var(--color-dark-soft);
}

.hero-media {
  position: relative;
}

.hero-media-frame {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4 / 5;
}

.hero-media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-floating-card {
  position: absolute;
  bottom: -1.25rem;
  left: -1rem;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  max-width: 240px;
}

.hero-floating-card .icon-circle {
  background: var(--gradient-accent);
  color: var(--color-white);
}

.hero-floating-card strong {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  display: block;
}

.hero-floating-card span {
  font-size: 0.78rem;
  color: var(--color-dark-soft);
}

@media (min-width: 1024px) {
  .hero .container {
    grid-template-columns: 1.05fr 0.95fr;
  }
}

/* --------------------------------------------------------------------------
   9. Icon circle (shared)
   -------------------------------------------------------------------------- */
.icon-circle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--color-accent-light);
  color: var(--color-accent-dark);
  flex-shrink: 0;
}

.icon-circle svg {
  width: 24px;
  height: 24px;
}

/* --------------------------------------------------------------------------
   10. Trust badges strip
   -------------------------------------------------------------------------- */
.trust-strip {
  padding-block: var(--space-lg);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.trust-strip .grid {
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.trust-item strong {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.95rem;
}

.trust-item span {
  font-size: 0.8rem;
  color: var(--color-dark-soft);
}

@media (min-width: 768px) {
  .trust-strip .grid { grid-template-columns: repeat(4, 1fr); }
}

/* --------------------------------------------------------------------------
   11. Google reviews preview
   -------------------------------------------------------------------------- */
.reviews-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-lg);
  box-shadow: var(--shadow-sm);
}

.reviews-score {
  text-align: center;
}

.reviews-score strong {
  font-family: var(--font-heading);
  font-size: 2.75rem;
  display: block;
  color: var(--color-dark);
}

.stars {
  color: var(--color-gold);
  font-size: 1.1rem;
  letter-spacing: 2px;
  margin-top: 0.25rem;
}

.reviews-score span {
  display: block;
  font-size: 0.8rem;
  color: var(--color-dark-soft);
  margin-top: 0.25rem;
}

.reviews-divider {
  width: 1px;
  align-self: stretch;
  background: var(--color-border);
  display: none;
}

.reviews-text h4 { margin-bottom: 0.4rem; }

@media (min-width: 640px) {
  .reviews-divider { display: block; }
}

/* --------------------------------------------------------------------------
   12. Before / After slider
   -------------------------------------------------------------------------- */
.ba-slider {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  box-shadow: var(--shadow-md);
  user-select: none;
  touch-action: pan-y;
}

.ba-slider img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
}

.ba-slider .ba-after {
  z-index: 1;
}

.ba-slider .ba-before-wrap {
  position: absolute;
  inset: 0;
  z-index: 2;
  overflow: hidden;
  width: 50%;
}

.ba-slider .ba-before-wrap img {
  width: var(--ba-img-width, 100%);
  max-width: none;
}

.ba-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  z-index: 3;
  width: 3px;
  background: var(--color-white);
  transform: translateX(-50%);
  cursor: ew-resize;
}

.ba-handle-grip {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-white);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent-dark);
  font-size: 1.1rem;
}

.ba-label {
  position: absolute;
  bottom: 1rem;
  z-index: 3;
  font-family: var(--font-button);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-pill);
  background: rgba(31, 41, 55, 0.65);
  color: var(--color-white);
  backdrop-filter: blur(6px);
}

.ba-label.before { left: 1rem; }
.ba-label.after { right: 1rem; }

/* --------------------------------------------------------------------------
   13. Cards — treatment categories / services
   -------------------------------------------------------------------------- */
.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.treatments-grid {
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .treatments-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .treatments-grid { grid-template-columns: repeat(4, 1fr); }
}

.treatment-card {
  display: flex;
  flex-direction: column;
}

.treatment-card .card-media {
  position: relative;
  aspect-ratio: 5 / 4;
  overflow: hidden;
}

.treatment-card .card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.treatment-card:hover .card-media img {
  transform: scale(1.08);
}

.treatment-card .card-badge {
  position: absolute;
  top: 0.9rem;
  left: 0.9rem;
  background: var(--color-white);
  font-family: var(--font-button);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-pill);
  color: var(--color-accent-dark);
  box-shadow: var(--shadow-sm);
}

.treatment-card .card-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  flex: 1;
}

.treatment-card .card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-button);
  font-size: 0.85rem;
  color: var(--color-dark-soft);
  padding-top: 0.5rem;
  margin-top: auto;
  border-top: 1px dashed var(--color-border);
}

.treatment-card .card-price {
  font-weight: 700;
  color: var(--color-dark);
  font-size: 1rem;
}

.treatment-card .card-cta {
  margin-top: 0.75rem;
}

/* --------------------------------------------------------------------------
   14. Why Choose COCO
   -------------------------------------------------------------------------- */
.features-grid {
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .features-grid { grid-template-columns: repeat(3, 1fr); }
}

.feature-card {
  padding: var(--space-md);
  border-radius: var(--radius-md);
  background: var(--color-white);
  border: 1px solid var(--color-border);
}

.feature-card .icon-circle { margin-bottom: var(--space-sm); }

.feature-card h4 { margin-bottom: 0.4rem; }

.feature-card p { font-size: 0.92rem; }

/* --------------------------------------------------------------------------
   15. Treatment process / steps
   -------------------------------------------------------------------------- */
.process-grid {
  grid-template-columns: 1fr;
  counter-reset: step;
  position: relative;
}

@media (min-width: 768px) {
  .process-grid { grid-template-columns: repeat(4, 1fr); }
}

.process-step {
  position: relative;
  text-align: center;
  padding: var(--space-md) var(--space-sm);
}

.process-step .step-number {
  counter-increment: step;
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-sm);
  border-radius: 50%;
  background: var(--gradient-accent);
  color: var(--color-white);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-accent);
}

.process-step .step-number::before {
  content: counter(step);
}

.process-step h4 { margin-bottom: 0.35rem; }
.process-step p { font-size: 0.88rem; }

/* --------------------------------------------------------------------------
   16. Latest results / gallery preview
   -------------------------------------------------------------------------- */
.results-scroll {
  display: flex;
  gap: var(--space-md);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 0.5rem;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.results-scroll::-webkit-scrollbar { display: none; }

.result-card {
  scroll-snap-align: start;
  flex: 0 0 78%;
  max-width: 340px;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  position: relative;
}

@media (min-width: 640px) {
  .result-card { flex-basis: 45%; }
}

@media (min-width: 1024px) {
  .result-card { flex-basis: 23%; }
}

.result-card .compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  aspect-ratio: 4 / 3;
}

.result-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.result-card .compare-label {
  position: absolute;
  bottom: 0.75rem;
  font-size: 0.65rem;
  font-family: var(--font-button);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: rgba(31, 41, 55, 0.65);
  color: var(--color-white);
  padding: 0.3rem 0.6rem;
  border-radius: var(--radius-pill);
}

.result-card .compare-label.before { left: 0.75rem; }
.result-card .compare-label.after { right: 0.75rem; }

/* --------------------------------------------------------------------------
   17. Testimonials
   -------------------------------------------------------------------------- */
.testimonial-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.testimonial-card .stars { margin-bottom: 0.25rem; }

.testimonial-card p {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  color: var(--color-dark);
  font-weight: 500;
  line-height: 1.5;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: auto;
  padding-top: var(--space-sm);
}

.testimonial-author img {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
}

.testimonial-author strong {
  display: block;
  font-size: 0.9rem;
}

.testimonial-author span {
  font-size: 0.78rem;
  color: var(--color-dark-soft);
}

.testimonials-track {
  display: flex;
  gap: var(--space-md);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 0.5rem;
  scrollbar-width: none;
}

.testimonials-track::-webkit-scrollbar { display: none; }

.testimonials-track .testimonial-card {
  scroll-snap-align: start;
  flex: 0 0 85%;
  max-width: 380px;
}

@media (min-width: 768px) {
  .testimonials-track .testimonial-card { flex-basis: 45%; }
}

@media (min-width: 1024px) {
  .testimonials-track .testimonial-card { flex-basis: 31%; }
}

/* --------------------------------------------------------------------------
   18. FAQ accordion
   -------------------------------------------------------------------------- */
.faq-list {
  max-width: 760px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.faq-item {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  padding: 1.25rem 1.5rem;
  text-align: left;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-dark);
}

.faq-question .faq-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-fast), background var(--transition-fast), color var(--transition-fast);
  position: relative;
}

.faq-question .faq-icon::before,
.faq-question .faq-icon::after {
  content: "";
  position: absolute;
  background: var(--color-dark);
  transition: transform var(--transition-fast);
}

.faq-question .faq-icon::before {
  width: 10px;
  height: 2px;
}

.faq-question .faq-icon::after {
  width: 2px;
  height: 10px;
}

.faq-item.is-open .faq-icon {
  background: var(--gradient-accent);
}

.faq-item.is-open .faq-icon::before,
.faq-item.is-open .faq-icon::after {
  background: var(--color-white);
}

.faq-item.is-open .faq-icon::after {
  transform: scaleY(0);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
}

.faq-answer-inner {
  padding: 0 1.5rem 1.5rem;
  font-size: 0.95rem;
  color: var(--color-dark-soft);
}

/* --------------------------------------------------------------------------
   19. Contact CTA
   -------------------------------------------------------------------------- */
.cta-panel {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  padding: var(--space-xl) var(--space-md);
  background: var(--color-dark);
  background-image: radial-gradient(circle at 15% 20%, rgba(0, 184, 196, 0.35), transparent 55%),
                     radial-gradient(circle at 85% 80%, rgba(212, 175, 55, 0.25), transparent 50%);
  text-align: center;
  color: var(--color-white);
}

.cta-panel h2 { color: var(--color-white); }

.cta-panel p {
  color: rgba(255, 255, 255, 0.75);
  max-width: 520px;
  margin: var(--space-sm) auto 0;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.85rem;
  margin-top: var(--space-lg);
}

/* --------------------------------------------------------------------------
   20. Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--color-dark);
  color: rgba(255, 255, 255, 0.7);
  padding-top: var(--space-2xl);
}

.footer-grid {
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

@media (min-width: 768px) {
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr 1.2fr; }
}

.footer-brand .site-logo .logo-text strong,
.footer-brand .site-logo .logo-text span {
  color: var(--color-white);
}

.footer-brand p {
  margin-top: var(--space-sm);
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.92rem;
  max-width: 320px;
}

.footer-social {
  display: flex;
  gap: 0.6rem;
  margin-top: var(--space-md);
}

.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.footer-social a:hover {
  background: var(--color-accent);
  transform: translateY(-3px);
}

.footer-col h4 {
  color: var(--color-white);
  font-size: 0.95rem;
  margin-bottom: var(--space-sm);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-col a,
.footer-col address {
  font-size: 0.92rem;
  font-style: normal;
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition-fast);
}

.footer-col a:hover { color: var(--color-white); }

.footer-hours li {
  display: flex;
  justify-content: space-between;
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.6);
}

.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: center;
  text-align: center;
  padding-block: var(--space-md);
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.45);
}

.footer-bottom-links {
  display: flex;
  gap: 1.25rem;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

/* --------------------------------------------------------------------------
   21. Floating action buttons
   -------------------------------------------------------------------------- */
.floating-actions {
  position: fixed;
  right: 1.1rem;
  bottom: 1.1rem;
  z-index: 900;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.75rem;
}

.fab {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition-fast);
}

.fab:hover { transform: translateY(-3px) scale(1.05); }

.fab-whatsapp {
  background: #25D366;
  color: var(--color-white);
}

.fab-top {
  background: var(--color-white);
  color: var(--color-dark);
  border: 1px solid var(--color-border);
  width: 44px;
  height: 44px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity var(--transition-fast), visibility var(--transition-fast), transform var(--transition-fast);
}

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

.mobile-book-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 899;
  background: var(--color-white);
  border-top: 1px solid var(--color-border);
  padding: 0.7rem 1rem;
  padding-bottom: calc(0.7rem + env(safe-area-inset-bottom));
  box-shadow: 0 -8px 24px rgba(31, 41, 55, 0.08);
}

.mobile-book-bar .btn { width: 100%; }

@media (min-width: 1024px) {
  .mobile-book-bar { display: none; }
  .floating-actions { bottom: 1.75rem; right: 1.75rem; }
}

/* --------------------------------------------------------------------------
   22. Animations (scroll reveal)
   -------------------------------------------------------------------------- */
[data-animate] {
  opacity: 0;
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

[data-animate="fade-up"] { transform: translateY(28px); }
[data-animate="fade-in"] { transform: translateY(0); }
[data-animate="zoom-in"] { transform: scale(0.94); }
[data-animate="slide-left"] { transform: translateX(32px); }
[data-animate="slide-right"] { transform: translateX(-32px); }

[data-animate].in-view {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  [data-animate] {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  .hero-bg-shape { animation: none; }
  .tooth3d { animation: none; transform: rotateY(-24deg); }
  .tooth3d-shine { animation: none; opacity: 0.55; }
  .tooth3d-shadow { animation: none; }
}

/* --------------------------------------------------------------------------
   23. Utilities
   -------------------------------------------------------------------------- */
.mt-0 { margin-top: 0 !important; }
.text-center { text-align: center; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -60px;
  background: var(--color-dark);
  color: var(--color-white);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  z-index: 10000;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 1rem;
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* --------------------------------------------------------------------------
   24. Interior page hero + breadcrumb
   -------------------------------------------------------------------------- */
.page-hero {
  position: relative;
  padding-top: calc(var(--header-height) + var(--space-lg));
  padding-bottom: var(--space-lg);
  background: var(--gradient-hero);
  overflow: hidden;
  text-align: center;
}

.page-hero .container {
  position: relative;
  z-index: 1;
}

.page-hero h1 {
  margin-top: var(--space-sm);
}

.page-hero .lede {
  max-width: 640px;
  margin: var(--space-sm) auto 0;
  font-size: 1.05rem;
}

.breadcrumb {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-button);
  font-size: 0.82rem;
  color: var(--color-dark-soft);
  flex-wrap: wrap;
}

.breadcrumb a {
  color: var(--color-dark-soft);
  transition: color var(--transition-fast);
}

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

.breadcrumb .sep { color: var(--color-border); }

.breadcrumb .current { color: var(--color-dark); font-weight: 600; }

/* --------------------------------------------------------------------------
   25. Forms
   -------------------------------------------------------------------------- */
.form-grid {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .form-grid.cols-2 { grid-template-columns: 1fr 1fr; }
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.form-group.span-2 {
  grid-column: 1 / -1;
}

.form-group label {
  font-family: var(--font-button);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-dark);
}

.form-group .required {
  color: var(--color-accent-dark);
}

.form-control {
  width: 100%;
  padding: 0.9rem 1.1rem;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--color-border);
  background: var(--color-white);
  font-size: 0.95rem;
  color: var(--color-dark);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 4px var(--color-accent-light);
}

textarea.form-control {
  resize: vertical;
  min-height: 130px;
}

.form-hint {
  font-size: 0.78rem;
  color: var(--color-dark-soft);
}

.form-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
}

/* Alerts / notices */
.alert {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  margin-bottom: var(--space-md);
}

.alert-success {
  background: rgba(34, 197, 94, 0.1);
  color: #15803d;
  border: 1px solid rgba(34, 197, 94, 0.25);
}

.alert-error {
  background: rgba(220, 38, 38, 0.08);
  color: #b91c1c;
  border: 1px solid rgba(220, 38, 38, 0.2);
}

/* --------------------------------------------------------------------------
   26. Booking stepper
   -------------------------------------------------------------------------- */
.booking-shell {
  max-width: 760px;
  margin-inline: auto;
}

.stepper {
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: var(--space-lg);
  counter-reset: bstep;
}

.stepper-step {
  flex: 1;
  text-align: center;
  position: relative;
}

.stepper-step::before {
  counter-increment: bstep;
  content: counter(bstep);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  margin: 0 auto 0.5rem;
  border-radius: 50%;
  background: var(--color-secondary);
  color: var(--color-dark-soft);
  font-family: var(--font-button);
  font-weight: 700;
  font-size: 0.9rem;
  border: 2px solid var(--color-border);
  transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.stepper-step span {
  font-family: var(--font-button);
  font-size: 0.75rem;
  color: var(--color-dark-soft);
  display: none;
}

.stepper-step.is-active::before {
  background: var(--gradient-accent);
  border-color: transparent;
  color: var(--color-white);
}

.stepper-step.is-done::before {
  background: var(--color-success);
  border-color: transparent;
  color: var(--color-white);
  content: "✓";
}

.stepper-step.is-active span { display: block; color: var(--color-dark); font-weight: 600; }

@media (min-width: 640px) {
  .stepper-step span { display: block; }
}

.booking-panel {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
}

.option-list {
  display: grid;
  gap: 0.75rem;
}

.option-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.option-card:hover { border-color: var(--color-accent); }

.option-card input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.option-card.is-selected {
  border-color: var(--color-accent);
  background: var(--color-accent-light);
}

.option-card .option-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
}

.option-card .option-meta {
  font-size: 0.82rem;
  color: var(--color-dark-soft);
}

.option-card .option-price {
  font-family: var(--font-button);
  font-weight: 700;
  color: var(--color-accent-dark);
  flex-shrink: 0;
}

.slots-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.6rem;
}

@media (min-width: 640px) {
  .slots-grid { grid-template-columns: repeat(4, 1fr); }
}

.slot-btn {
  padding: 0.7rem 0.5rem;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--color-border);
  font-family: var(--font-button);
  font-size: 0.85rem;
  font-weight: 600;
  text-align: center;
  transition: border-color var(--transition-fast), background var(--transition-fast), color var(--transition-fast);
}

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

.slot-btn.is-selected {
  background: var(--gradient-accent);
  border-color: transparent;
  color: var(--color-white);
}

.slot-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.booking-nav {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: var(--space-lg);
}

.booking-summary {
  background: var(--color-secondary);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  margin-bottom: var(--space-md);
}

.booking-summary dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.4rem 1rem;
  font-size: 0.9rem;
}

.booking-summary dt { color: var(--color-dark-soft); }
.booking-summary dd { font-weight: 600; text-align: right; }

.confirmation-panel {
  text-align: center;
  padding: var(--space-xl) var(--space-md);
}

.confirmation-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-md);
  border-radius: 50%;
  background: rgba(34, 197, 94, 0.12);
  color: var(--color-success);
  display: flex;
  align-items: center;
  justify-content: center;
}

.booking-ref {
  display: inline-block;
  font-family: var(--font-button);
  font-weight: 700;
  letter-spacing: 0.05em;
  background: var(--color-secondary);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-pill);
  margin-top: 0.5rem;
}

/* --------------------------------------------------------------------------
   27. Pricing
   -------------------------------------------------------------------------- */
.pricing-tabs {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

.pricing-tab {
  padding: 0.65rem 1.4rem;
  border-radius: var(--radius-pill);
  border: 1.5px solid var(--color-border);
  font-family: var(--font-button);
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--color-dark-soft);
  transition: all var(--transition-fast);
}

.pricing-tab.is-active,
.pricing-tab:hover {
  background: var(--color-dark);
  border-color: var(--color-dark);
  color: var(--color-white);
}

.pricing-table {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.pricing-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.15rem 1.5rem;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  flex-wrap: wrap;
}

.pricing-row .pricing-info h4 { margin-bottom: 0.2rem; }
.pricing-row .pricing-info p { font-size: 0.85rem; margin: 0; }

.pricing-row .pricing-figures {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-shrink: 0;
}

.pricing-row .pricing-duration {
  font-size: 0.82rem;
  color: var(--color-dark-soft);
}

.pricing-row .pricing-amount {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--color-dark);
}

.pricing-row .pricing-amount .was {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-dark-soft);
  text-decoration: line-through;
  margin-right: 0.4rem;
}

/* --------------------------------------------------------------------------
   28. Lightbox gallery
   -------------------------------------------------------------------------- */
.filter-bar {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: var(--space-lg);
}

.filter-btn {
  padding: 0.6rem 1.3rem;
  border-radius: var(--radius-pill);
  border: 1.5px solid var(--color-border);
  font-family: var(--font-button);
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--color-dark-soft);
  transition: all var(--transition-fast);
}

.filter-btn.is-active,
.filter-btn:hover {
  background: var(--gradient-accent);
  border-color: transparent;
  color: var(--color-white);
}

.gallery-grid {
  grid-template-columns: repeat(2, 1fr);
}

@media (min-width: 768px) {
  .gallery-grid { grid-template-columns: repeat(3, 1fr); }
}

.gallery-item {
  cursor: pointer;
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow-sm);
}

.gallery-item .compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  aspect-ratio: 4 / 3;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.gallery-item:hover img { transform: scale(1.06); }

.gallery-item .expand-icon {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-dark);
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(17, 24, 39, 0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}

.lightbox.is-open {
  opacity: 1;
  visibility: visible;
}

.lightbox-content {
  max-width: 900px;
  width: 100%;
}

.lightbox-compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.lightbox-compare img {
  width: 100%;
  height: auto;
  max-height: 70vh;
  object-fit: cover;
}

.lightbox-caption {
  text-align: center;
  color: var(--color-white);
  margin-top: var(--space-sm);
  font-size: 0.9rem;
}

.lightbox-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* --------------------------------------------------------------------------
   29. Legal / prose pages
   -------------------------------------------------------------------------- */
.prose {
  max-width: 760px;
  margin-inline: auto;
}

.prose h2 {
  margin-top: var(--space-lg);
  margin-bottom: 0.75rem;
}

.prose h2:first-child { margin-top: 0; }

.prose p, .prose li {
  color: var(--color-dark-soft);
  margin-bottom: 0.85rem;
}

.prose ul, .prose ol {
  padding-left: 1.25rem;
  margin-bottom: 0.85rem;
}

.prose ul { list-style: disc; }
.prose ol { list-style: decimal; }

.prose a {
  color: var(--color-accent-dark);
  text-decoration: underline;
}

.prose .updated-note {
  font-size: 0.85rem;
  color: var(--color-dark-soft);
  margin-bottom: var(--space-lg);
}

/* --------------------------------------------------------------------------
   30. 404
   -------------------------------------------------------------------------- */
.error-page {
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: var(--header-height);
}

.error-code {
  font-family: var(--font-heading);
  font-size: clamp(4rem, 14vw, 8rem);
  font-weight: 800;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1;
}

/* --------------------------------------------------------------------------
   31. 3D rotating tooth (hero visual)
   Pure CSS 3D transforms — no images, no JS, no external libraries.
   -------------------------------------------------------------------------- */
.hero-media-frame.tooth-frame {
  background: radial-gradient(circle at 50% 32%, #EAFBFC 0%, #BDEFF2 46%, #5AD3DA 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.tooth3d-stage {
  perspective: 1000px;
  perspective-origin: 50% 35%;
  transform: scale(0.85);
}

@media (min-width: 480px) {
  .tooth3d-stage { transform: scale(1); }
}

@media (min-width: 1200px) {
  .tooth3d-stage { transform: scale(1.15); }
}

.tooth3d {
  position: relative;
  width: 176px;
  height: 236px;
  transform-style: preserve-3d;
  animation: tooth-spin-float 8s ease-in-out infinite;
  filter: drop-shadow(0 18px 26px rgba(0, 41, 45, 0.28));
}

.tooth3d-crown {
  position: absolute;
  top: 0;
  left: 50%;
  width: 150px;
  height: 118px;
  transform: translateX(-50%);
  border-radius: 50% 50% 46% 46% / 62% 62% 38% 38%;
  background: linear-gradient(155deg, #FFFFFF 0%, #EAFBFC 46%, #BDEFF2 100%);
  box-shadow:
    inset -14px -18px 28px rgba(0, 146, 156, 0.22),
    inset 10px 12px 18px rgba(255, 255, 255, 0.9);
}

.tooth3d-crown::after {
  content: "";
  position: absolute;
  top: 14px;
  left: 50%;
  width: 3px;
  height: 34px;
  background: rgba(0, 146, 156, 0.18);
  border-radius: 2px;
  transform: translateX(-50%);
}

.tooth3d-root {
  position: absolute;
  top: 100px;
  width: 34px;
  height: 118px;
  background: linear-gradient(160deg, #FDFEFE 0%, #E4F8F9 55%, #AEE7EA 100%);
  border-radius: 40% 40% 60% 60% / 30% 30% 70% 70%;
  box-shadow:
    inset -8px -10px 16px rgba(0, 146, 156, 0.2),
    inset 6px 8px 12px rgba(255, 255, 255, 0.85);
}

.tooth3d-root-left {
  left: 34px;
  transform: rotate(-9deg);
  transform-origin: top center;
}

.tooth3d-root-right {
  right: 34px;
  transform: rotate(9deg);
  transform-origin: top center;
}

.tooth3d-shine {
  position: absolute;
  top: 10px;
  left: 22px;
  width: 46px;
  height: 70px;
  background: radial-gradient(closest-side, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0));
  border-radius: 50%;
  filter: blur(2px);
  animation: tooth-shine-sweep 8s ease-in-out infinite;
}

.tooth3d-shadow {
  position: absolute;
  bottom: 8%;
  left: 50%;
  width: 120px;
  height: 20px;
  background: radial-gradient(closest-side, rgba(0, 41, 45, 0.28), transparent 72%);
  border-radius: 50%;
  transform: translateX(-50%);
  animation: tooth-shadow-pulse 8s ease-in-out infinite;
}

@keyframes tooth-spin-float {
  0%   { transform: translateY(0)     rotateY(0deg); }
  25%  { transform: translateY(-10px) rotateY(90deg); }
  50%  { transform: translateY(0)     rotateY(180deg); }
  75%  { transform: translateY(-10px) rotateY(270deg); }
  100% { transform: translateY(0)     rotateY(360deg); }
}

@keyframes tooth-shine-sweep {
  0%, 100% { opacity: 0.9; transform: translateX(0); }
  25%      { opacity: 0.15; transform: translateX(18px); }
  50%      { opacity: 0; }
  75%      { opacity: 0.15; transform: translateX(-18px); }
}

@keyframes tooth-shadow-pulse {
  0%, 50%, 100% { transform: translateX(-50%) scaleX(1); opacity: 0.9; }
  25%, 75%      { transform: translateX(-50%) scaleX(0.55); opacity: 0.5; }
}