/* ============================================================
   SHARDA DENTAL & HOMOEOPATHY CENTRE — Design System & Styles
   ============================================================ */

/* --- Design Tokens (§2, §18) --- */
:root {
  /* Colors */
  --canvas: #FFFFFF;
  --surface: #FFFFFF;
  --ink: #303030;
  --muted: #5B6C68;
  --brand-teal: #13816F;
  --brand-bright: #1CBA9F;
  --brand-teal-tint: #F7F9FB;
  --dental-accent: #2E6E8E;
  --homo-accent: #8A9A5B;
  --ember: var(--brand-bright);
  --ember-hover: var(--brand-teal);

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(48,48,48,0.06), 0 1px 2px rgba(48,48,48,0.04);
  --shadow-md: 0 4px 12px rgba(48,48,48,0.08), 0 2px 4px rgba(48,48,48,0.04);
  --shadow-lg: 0 12px 32px rgba(48,48,48,0.1), 0 4px 8px rgba(48,48,48,0.06);
  --shadow-lift: 0 8px 24px rgba(48,48,48,0.12);

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

  /* Typography */
  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --fs-xs: 0.75rem;
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-lg: 1.125rem;
  --fs-xl: 1.25rem;
  --fs-2xl: 1.5rem;
  --fs-3xl: 1.875rem;
  --fs-4xl: 2.25rem;
  --fs-5xl: 3rem;
  --fs-6xl: 3.75rem;
  --lh-tight: 1.15;
  --lh-snug: 1.3;
  --lh-normal: 1.6;
  --fw-normal: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;

  /* Motion tokens (§18) */
  --motion-micro: 140ms ease-out;
  --motion-standard: 230ms cubic-bezier(0.4, 0, 0.2, 1);
  --motion-reveal: 600ms ease-out;
  --motion-hero: 1000ms;
  --hero-interval: 5000ms;
  --motion-ease-out: cubic-bezier(0, 0, 0.2, 1);
  --motion-ease-standard: cubic-bezier(0.4, 0, 0.2, 1);

  /* Layout */
  --max-width: 1280px;
  --nav-height: 180px;
  --mobile-bar-height: 64px;
  --border-radius: 8px;
  --border-radius-lg: 12px;

  /* Z-index scale */
  --z-base: 1;
  --z-sticky: 100;
  --z-mobile-nav: 200;
  --z-lightbox: 300;
  --z-mobile-bar: 250;
  --z-header: 150;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: var(--nav-height);
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: var(--lh-normal);
  color: var(--ink);
  background: var(--canvas);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; color: inherit; }
input, select, textarea { font: inherit; color: inherit; }
::selection { background: var(--brand-teal-tint); color: var(--ink); }

/* --- Skip Link (§20) --- */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--sp-4);
  z-index: 9999;
  padding: var(--sp-3) var(--sp-6);
  background: var(--ember);
  color: var(--ink);
  font-weight: var(--fw-semibold);
  border-radius: 0 0 var(--border-radius) var(--border-radius);
  transition: top var(--motion-micro);
}
.skip-link:focus {
  top: 0;
}

/* --- Container --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--sp-6);
}

/* --- Section base --- */
.section {
  padding: var(--sp-24) 0;
  position: relative;
}
.section--dark {
  background: var(--ember);
  color: var(--ink);
}
.section--teint {
  background: var(--brand-teal-tint);
}

/* --- Section Dividers --- */
.section-divider {
  position: absolute;
  left: 0;
  right: 0;
  height: 60px;
  overflow: hidden;
  z-index: 2;
  pointer-events: none;
}
.section-divider--top {
  top: -59px;
}
.section-divider--bottom {
  bottom: -59px;
  transform: rotate(180deg);
}
.section-divider svg {
  display: block;
  width: 100%;
  height: 100%;
}
.section__title {
  font-family: var(--font-display);
  font-size: var(--fs-4xl);
  font-weight: var(--fw-bold);
  line-height: var(--lh-tight);
  margin-bottom: var(--sp-3);
}
.section__subtitle {
  font-size: var(--fs-lg);
  color: var(--muted);
  margin-bottom: var(--sp-12);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  font-weight: var(--fw-semibold);
  border-radius: var(--border-radius);
  transition: background var(--motion-micro), color var(--motion-micro), box-shadow var(--motion-micro), transform var(--motion-micro);
  white-space: nowrap;
  text-decoration: none;
  border: 2px solid transparent;
}
.btn:focus-visible {
  outline: 2px solid var(--brand-teal);
  outline-offset: 2px;
}
.btn--sm {
  padding: var(--sp-2) var(--sp-5);
  font-size: var(--fs-sm);
}
.btn--lg {
  padding: var(--sp-4) var(--sp-8);
  font-size: var(--fs-base);
}
.btn--full {
  width: 100%;
}
.btn--primary {
  background: var(--ember);
  color: var(--ink);
  border-color: var(--ember);
}
.btn--primary:hover {
  background: var(--ember-hover);
  border-color: var(--ember-hover);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn--outline {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.4);
}
.btn--outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.7);
}

/* ============================================================
   HEADER / NAVIGATION (§8)
   ============================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-header);
  height: var(--nav-height);
  background: var(--canvas);
  box-shadow: 0 1px 0 rgba(48,48,48,0.1);
  transition: box-shadow var(--motion-standard);
}
.site-header.scrolled {
  box-shadow: var(--shadow-sm);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
}
.nav.container {
  max-width: none;
  margin: 0;
  padding-left: var(--sp-3);
  padding-right: var(--sp-3);
}
.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  min-width: 0;
  color: var(--ink);
  text-decoration: none;
}
.nav__logo-textcol {
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
  min-width: 0;
}
.nav__logo-tagline {
  text-align: center;
  font-size: var(--fs-base);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.15em;
  color: var(--brand-teal);
}
.nav__logo-text {
  font-family: var(--font-display);
  font-size: clamp(1rem, 1.6vw, 1.5rem);
  font-weight: var(--fw-bold);
  line-height: 1.2;
}
.nav__logo-img {
  display: block;
  height: clamp(80px, 10vw, 144px);
  width: auto;
  flex-shrink: 0;
  border-radius: 4px;
}
.nav__links {
  display: flex;
  gap: var(--sp-8);
}
.nav__link {
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--muted);
  position: relative;
  padding: var(--sp-2) 0;
  transition: color var(--motion-standard);
}
.nav__link:hover,
.nav__link--active {
  color: var(--brand-teal);
}
.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--brand-bright);
  transition: width var(--motion-standard);
}
.nav__link:hover::after,
.nav__link--active::after {
  width: 100%;
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
}
.nav__call {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--muted);
  transition: color var(--motion-micro);
}
.nav__call:hover { color: var(--brand-teal); }

@media (max-width: 1535px) {
  .nav__call span { display: none; }
  .nav__links { gap: var(--sp-6); }
}

.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px 0;
}
.nav__hamburger span {
  display: block;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: background var(--motion-standard), transform var(--motion-standard);
}
.nav__hamburger[aria-expanded="true"] span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.nav__hamburger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.nav__hamburger[aria-expanded="true"] span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile nav overlay */
.mobile-nav {
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  bottom: 0;
  z-index: var(--z-mobile-nav);
  background: var(--canvas);
  padding: var(--sp-8) var(--sp-6);
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition: transform var(--motion-standard), opacity var(--motion-standard), visibility var(--motion-standard);
}
.mobile-nav[aria-hidden="false"] {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}
.mobile-nav__links {
  display: flex;
  flex-direction: column;
  gap: var(--sp-6);
}
.mobile-nav__link {
  font-family: var(--font-display);
  font-size: var(--fs-3xl);
  font-weight: var(--fw-semibold);
  color: var(--ink);
  transition: color var(--motion-micro);
}
.mobile-nav__link:hover { color: var(--brand-teal); }

/* ============================================================
   HERO (§7)
   ============================================================ */
.hero {
  position: relative;
  margin-top: var(--nav-height);
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  touch-action: pan-y;
  background: linear-gradient(135deg, var(--brand-bright) 0%, var(--brand-bright) 40%, var(--ink) 100%);
}
.hero__slides {
  position: absolute;
  inset: 0;
  height: 120%;
  z-index: 0;
  will-change: transform;
}
.hero__slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity var(--motion-hero) ease;
}
.hero__slide.is-active {
  opacity: 1;
}
.hero__slide img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: contrast(1.12) saturate(1.15);
}
@media (prefers-reduced-motion: no-preference) {
  .hero__slide.is-active img {
    animation: heroZoom var(--hero-interval) linear forwards;
  }
}
@keyframes heroZoom {
  from { transform: scale(1); }
  to { transform: scale(1.04); }
}
.hero__particles {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}
.hero-copy {
  background: var(--canvas);
  padding: var(--sp-20) 0;
}
.hero-copy__content {
  max-width: 680px;
  margin: 0 auto;
}
.hero-copy .btn--outline {
  color: var(--brand-teal);
  border-color: var(--brand-teal);
}
.hero-copy .btn--outline:hover {
  background: var(--brand-teal-tint);
  border-color: var(--ink);
}
.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 5vw, var(--fs-6xl));
  font-weight: var(--fw-bold);
  line-height: var(--lh-tight);
  color: var(--ink);
  margin-bottom: var(--sp-6);
  opacity: 0;
  transform: translateY(24px);
  animation: heroReveal var(--motion-hero) var(--motion-ease-out) 0.2s forwards;
}
.hero__subtitle {
  font-size: clamp(1rem, 2vw, var(--fs-xl));
  color: var(--muted);
  line-height: var(--lh-normal);
  margin-bottom: var(--sp-8);
  max-width: 560px;
  opacity: 0;
  transform: translateY(16px);
  animation: heroReveal var(--motion-hero) var(--motion-ease-out) 0.5s forwards;
}
.hero__actions {
  display: flex;
  gap: var(--sp-4);
  flex-wrap: wrap;
  margin-bottom: var(--sp-8);
  opacity: 0;
  transform: translateY(16px);
  animation: heroReveal var(--motion-hero) var(--motion-ease-out) 0.8s forwards;
}
.hero__tagline {
  font-family: var(--font-display);
  font-size: var(--fs-lg);
  font-style: italic;
  color: var(--brand-teal);
  opacity: 0;
  animation: heroReveal var(--motion-hero) var(--motion-ease-out) 1s forwards;
}

@keyframes heroReveal {
  to { opacity: 1; transform: translateY(0); }
}

.hero__caption {
  display: inline-block;
  background: var(--ink);
  color: #fff;
  font-size: var(--fs-sm);
  font-style: italic;
  line-height: var(--lh-snug);
  padding: var(--sp-2) var(--sp-4);
  border-left: 3px solid var(--brand-bright);
  margin-bottom: var(--sp-6);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--motion-standard), visibility var(--motion-standard);
}
.hero__caption.is-visible {
  opacity: 1;
  visibility: visible;
}

.hero__controls {
  position: absolute;
  left: var(--sp-6);
  bottom: var(--sp-6);
  z-index: 3;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--sp-3);
  max-width: calc(100vw - 2 * var(--sp-4));
  padding: var(--sp-2);
  background: #E0F6FF;
  border-radius: var(--border-radius-lg);
  opacity: 0.2;
  transition: opacity var(--motion-standard);
}
.hero__controls:hover,
.hero__controls:focus-within {
  opacity: 1;
}
/* Touch devices have no hover — keep the controls a little more present */
@media (hover: none) {
  .hero__controls { opacity: 0.4; }
}
.hero__ctrl {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  padding: 0;
  background: transparent;
  border: 1px solid rgba(48,48,48,0.45);
  border-radius: 50%;
  color: var(--ink);
  cursor: pointer;
  transition: background var(--motion-micro), border-color var(--motion-micro);
}
.hero__ctrl:hover {
  background: rgba(48,48,48,0.1);
  border-color: var(--ink);
}
.hero__ctrl-icon--play { display: none; }
.hero__ctrl.is-paused .hero__ctrl-icon--pause { display: none; }
.hero__ctrl.is-paused .hero__ctrl-icon--play { display: block; }
.hero__dots {
  display: flex;
  align-items: center;
  gap: var(--sp-1);
}
.hero__dot {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  padding: 0;
  background: none;
  border: 0;
  cursor: pointer;
}
.hero__dot::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(48,48,48,0.45);
  transition: background var(--motion-micro), transform var(--motion-micro);
}
.hero__dot:hover::before {
  background: var(--ink);
}
.hero__dot[aria-current="true"]::before {
  background: var(--ink);
  transform: scale(1.3);
}

/* ============================================================
   TRUST BAR (§11)
   ============================================================ */
.trust-bar {
  background: var(--surface);
  padding: var(--sp-12) 0;
  box-shadow: var(--shadow-sm);
  position: relative;
  z-index: var(--z-base);
}
.trust-bar__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-8);
  text-align: center;
}
.trust-bar__icon {
  color: var(--brand-teal);
  margin-bottom: var(--sp-3);
}
.trust-bar__number {
  display: block;
  font-family: var(--font-display);
  font-size: var(--fs-4xl);
  font-weight: var(--fw-bold);
  color: var(--ink);
  line-height: 1;
  margin-bottom: var(--sp-2);
}
.trust-bar__label {
  font-size: var(--fs-sm);
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: var(--fw-medium);
}
.trust-bar__item {
  padding: var(--sp-6);
  border-radius: var(--border-radius-lg);
  border: 1px solid transparent;
  transition: background var(--motion-standard), backdrop-filter var(--motion-standard), border-color var(--motion-standard), transform var(--motion-standard);
}
.trust-bar__item:hover {
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid color-mix(in srgb, var(--brand-bright) 15%, transparent);
  transform: translateY(-2px);
}

/* ============================================================
   ABOUT (§6)
   ============================================================ */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-16);
  align-items: center;
}
.about__intro {
  font-size: var(--fs-xl);
  font-weight: var(--fw-medium);
  line-height: var(--lh-snug);
  margin-bottom: var(--sp-6);
}
.about__content p {
  color: var(--muted);
  margin-bottom: var(--sp-6);
  max-width: 60ch;
}
.about__homoeopathy {
  margin-top: var(--sp-8);
  padding: var(--sp-6);
  background: var(--brand-teal-tint);
  border-radius: var(--border-radius-lg);
  border-left: 3px solid var(--homo-accent);
}
.about__quote {
  font-family: var(--font-display);
  font-size: var(--fs-lg);
  font-style: italic;
  color: var(--ink);
  margin-bottom: var(--sp-4);
}
.about__quote cite {
  display: block;
  font-size: var(--fs-sm);
  font-style: normal;
  color: var(--muted);
  margin-top: var(--sp-2);
}
.about__homoeopathy p {
  font-size: var(--fs-sm);
  color: var(--muted);
  margin-bottom: 0;
}
.about__image {
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.about__image img {
  width: 100%;
  height: 500px;
  object-fit: cover;
}

/* ============================================================
   TEAM (§10)
   ============================================================ */
.team { background: var(--brand-teal-tint); }
.team__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-8);
  max-width: 800px;
  margin: 0 auto;
}
.team__grid--5 {
  grid-template-columns: repeat(3, 1fr);
  max-width: 1100px;
}
.team__grid--5 .team__card:nth-child(n+4) {
  grid-column: span 1;
}
.team__card {
  background: var(--surface);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--motion-standard), box-shadow var(--motion-standard);
  outline: none;
}
.team__card:focus-visible {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lift);
  outline: 2px solid var(--brand-teal);
  outline-offset: 2px;
}
.team__photo-wrap {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
}
.team__photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 15%;
  transition: transform var(--motion-standard);
}
.team__tag {
  position: absolute;
  top: var(--sp-4);
  left: var(--sp-4);
  padding: var(--sp-1) var(--sp-3);
  border-radius: 100px;
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: 1px solid var(--brand-bright);
}
.team__tag--dental {
  background: var(--dental-accent);
  color: #fff;
}
.team__tag--homo {
  background: var(--homo-accent);
  color: #fff;
}
.team__monogram {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--brand-teal-tint) 0%, var(--brand-bright) 100%);
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: var(--fw-bold);
  letter-spacing: 0.05em;
}
.team__info {
  padding: var(--sp-6);
}
.team__name {
  font-family: var(--font-display);
  font-size: var(--fs-xl);
  font-weight: var(--fw-semibold);
  margin-bottom: var(--sp-1);
}
.team__role {
  font-size: var(--fs-sm);
  color: var(--muted);
  margin-bottom: var(--sp-4);
}
.team__bio {
  font-size: var(--fs-sm);
  color: var(--muted);
  margin-bottom: var(--sp-4);
}

/* ============================================================
   SERVICES (§9)
   ============================================================ */
.services__toggle {
  display: flex;
  justify-content: center;
  gap: var(--sp-3);
  margin-bottom: var(--sp-10);
}
.services__tab {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-3) var(--sp-6);
  border-radius: 100px;
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  border: 2px solid transparent;
  transition: all var(--motion-micro);
}
.services__tab:focus-visible {
  outline: 2px solid var(--brand-teal);
  outline-offset: 2px;
}
.services__tab--active {
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}
#tab-dental.services__tab--active {
  border-color: var(--dental-accent);
  color: var(--dental-accent);
}
#tab-homoeopathy.services__tab--active {
  border-color: var(--homo-accent);
  color: var(--homo-accent);
}
.services__panel {
  display: none;
}
.services__panel--active {
  display: block;
}
.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-6);
  justify-items: center;
}

.service-card {
  background: var(--surface);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--motion-standard), box-shadow var(--motion-standard);
  width: 100%;
  max-width: 360px;
}
.service-card__img {
  aspect-ratio: 4/3;
  overflow: hidden;
}
.service-card__img img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  transition: transform var(--motion-standard);
}
.service-card__body {
  padding: var(--sp-5);
}
.service-card__title {
  font-family: var(--font-display);
  font-size: var(--fs-lg);
  font-weight: var(--fw-semibold);
  margin-bottom: var(--sp-2);
}
.service-card__desc {
  font-size: var(--fs-sm);
  color: var(--muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: var(--sp-4);
  min-height: 2.5em;
}
.service-card__details {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--motion-standard);
  font-size: var(--fs-sm);
  color: var(--muted);
}
.service-card__details[hidden] {
  display: none;
}
.service-card__details.open {
  max-height: 300px;
  padding-bottom: var(--sp-4);
  display: block;
}
.service-card__cta {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--brand-teal);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  transition: color var(--motion-micro);
}
.service-card__cta:hover { color: var(--ink); }
.service-card__cta:focus-visible {
  outline: 2px solid var(--brand-teal);
  outline-offset: 2px;
}

/* Auto-balancing last row: center items when count isn't multiple of 3 */
.services__grid > .service-card:nth-last-child(-n+1):nth-child(3n+1) {
  grid-column: 1 / -1;
  justify-self: center;
  max-width: 360px;
}
.services__grid > .service-card:nth-last-child(-n+2):nth-child(3n+2) {
  grid-column: span 1;
}

/* ============================================================
   FACILITIES (§13)
   ============================================================ */
.facilities__grid {
  columns: 3;
  column-gap: var(--sp-6);
}
.facility-item {
  break-inside: avoid;
  margin-bottom: var(--sp-6);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  position: relative;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: transform var(--motion-standard), box-shadow var(--motion-standard);
}
.facility-item img {
  width: 100%;
  display: block;
  transition: transform var(--motion-standard);
}
.facility-item__caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--sp-8) var(--sp-4) var(--sp-4);
  background: linear-gradient(to top, color-mix(in srgb, var(--ink) 80%, transparent), transparent);
  color: #fff;
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--motion-standard), transform var(--motion-standard);
}
.facility-item:focus-visible .facility-item__caption {
  opacity: 1;
  transform: translateY(0);
}
.facility-item:focus-visible {
  outline: 2px solid var(--brand-teal);
  outline-offset: 2px;
}

/* ============================================================
   LIGHTBOX
   ============================================================ */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: var(--z-lightbox);
  background: rgba(48,48,48,0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--sp-8);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--motion-standard), visibility var(--motion-standard);
}
.lightbox[hidden] { display: flex; visibility: hidden; opacity: 0; pointer-events: none; }
.lightbox:not([hidden]) { opacity: 1; visibility: visible; pointer-events: auto; }
.lightbox__img {
  max-width: 90vw;
  max-height: 85vh;
  border-radius: var(--border-radius);
  object-fit: contain;
}
.lightbox__close {
  position: absolute;
  top: var(--sp-6);
  right: var(--sp-6);
  color: #fff;
  font-size: 2rem;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background var(--motion-micro);
}
.lightbox__close:hover { background: rgba(255,255,255,0.1); }
.lightbox__close:focus-visible {
  outline: 2px solid var(--brand-bright);
  outline-offset: 2px;
}
.lightbox__prev,
.lightbox__next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  color: #fff;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background var(--motion-micro);
}
.lightbox__prev { left: var(--sp-4); }
.lightbox__next { right: var(--sp-4); }
.lightbox__prev:hover,
.lightbox__next:hover { background: rgba(255,255,255,0.1); }
.lightbox__prev:focus-visible,
.lightbox__next:focus-visible {
  outline: 2px solid var(--brand-bright);
  outline-offset: 2px;
}

/* ============================================================
   EMERGENCY & APPOINTMENT (§12)
   ============================================================ */
.emergency__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-16);
  align-items: start;
}
.emergency__eyebrow {
  font-size: var(--fs-sm);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(48,48,48,0.85);
  margin-bottom: var(--sp-4);
}
.emergency__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, var(--fs-6xl));
  font-weight: var(--fw-bold);
  line-height: var(--lh-tight);
  margin-bottom: var(--sp-6);
}
.emergency__desc {
  color: var(--ink);
  margin-bottom: var(--sp-8);
  max-width: 40ch;
  line-height: var(--lh-normal);
}
.emergency__phones {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-4);
}
.emergency__call { margin-bottom: 0; }
.section--dark .btn--primary {
  background: var(--canvas);
  color: var(--ink);
  border-color: var(--ink);
}
.section--dark .btn--primary:hover {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}
.section--dark .btn--outline {
  color: var(--ink);
  border-color: var(--ink);
}
.section--dark .btn--outline:hover {
  background: rgba(48,48,48,0.1);
  border-color: var(--ink);
}
.section--dark .btn:focus-visible {
  outline-color: var(--ink);
}

/* Form */
.emergency__form-wrap {
  background: var(--surface);
  border-radius: var(--border-radius-lg);
  padding: var(--sp-8);
  box-shadow: var(--shadow-lg);
}
.emergency__form-title {
  font-family: var(--font-display);
  font-size: var(--fs-2xl);
  font-weight: var(--fw-bold);
  margin-bottom: var(--sp-6);
  color: var(--ink);
}
.form-group {
  margin-bottom: var(--sp-5);
  position: relative;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-4);
}
.form-label {
  display: block;
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--ink);
  margin-bottom: var(--sp-2);
}
.form-input {
  width: 100%;
  padding: var(--sp-3) var(--sp-4);
  border: 1.5px solid #d1cdc7;
  border-radius: var(--border-radius);
  background: var(--canvas);
  font-size: var(--fs-base);
  color: var(--ink);
  transition: border-color var(--motion-micro), box-shadow var(--motion-micro);
  outline: none;
}
.form-input:focus {
  border-color: var(--brand-teal);
  box-shadow: 0 0 0 3px rgba(28,186,159,0.25);
}
.form-input.error {
  border-color: #dc3545;
}
.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%235B6C68' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}
.form-textarea {
  resize: vertical;
  min-height: 80px;
}
.form-error {
  display: none;
  font-size: var(--fs-xs);
  color: #dc3545;
  margin-top: var(--sp-1);
}
.form-error.visible {
  display: block;
}
.btn__spinner { display: none; }
.btn--loading .btn__text { opacity: 0; }
.btn--loading .btn__spinner { display: flex; }

.form-success,
.form-error-global {
  text-align: center;
  padding: var(--sp-6);
  border-radius: var(--border-radius);
  margin-top: var(--sp-4);
}
.form-success {
  background: var(--brand-teal-tint);
  color: var(--brand-teal);
}
.form-success svg { margin: 0 auto var(--sp-3); }
.form-error-global {
  background: #fef2f2;
  color: #dc3545;
}
.form-error-global a { color: var(--ink); font-weight: var(--fw-semibold); }

/* ============================================================
   TESTIMONIALS (§14)
   ============================================================ */
.testimonials__grid {
  max-width: 700px;
  margin: 0 auto;
}
.testimonials__card {
  background: var(--surface);
  border-radius: var(--border-radius-lg);
  padding: var(--sp-10);
  box-shadow: var(--shadow-md);
  text-align: center;
}
.testimonials__stars {
  display: flex;
  justify-content: center;
  gap: var(--sp-1);
  color: var(--brand-teal);
  margin-bottom: var(--sp-6);
}
.testimonials__text {
  font-family: var(--font-display);
  font-size: var(--fs-xl);
  font-style: italic;
  line-height: var(--lh-snug);
  color: var(--ink);
  margin-bottom: var(--sp-6);
}
.testimonials__author strong {
  display: block;
  font-size: var(--fs-base);
  font-weight: var(--fw-semibold);
}
.testimonials__author span {
  font-size: var(--fs-sm);
  color: var(--muted);
}

/* ============================================================
   AFFILIATIONS (§11)
   ============================================================ */
.affiliations__note {
  background: var(--surface);
  border-radius: var(--border-radius-lg);
  padding: var(--sp-8);
  text-align: center;
  color: var(--muted);
  font-size: var(--fs-sm);
  box-shadow: var(--shadow-sm);
}
.affiliations__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-8);
}
.affiliations__item {
  background: var(--surface);
  border-radius: var(--border-radius-lg);
  padding: var(--sp-8) var(--sp-6);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform var(--motion-standard), box-shadow var(--motion-standard);
}
.affiliations__item svg {
  color: var(--brand-teal);
  margin-bottom: var(--sp-4);
}
.affiliations__item p {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--ink);
}

/* ============================================================
   MAP SECTION
   ============================================================ */
.map-section {
  display: grid;
  grid-template-columns: 1fr 2fr;
  min-height: 400px;
}
.map-section__info {
  background: var(--brand-teal-tint);
  padding: var(--sp-12) var(--sp-10);
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.map-section__title {
  font-family: var(--font-display);
  font-size: var(--fs-3xl);
  font-weight: var(--fw-bold);
  color: var(--ink);
  margin-bottom: var(--sp-2);
}
.map-section__clinic {
  font-size: var(--fs-lg);
  font-weight: var(--fw-semibold);
  color: var(--brand-teal);
  margin-bottom: var(--sp-4);
}
.map-section__address {
  font-size: var(--fs-sm);
  color: var(--muted);
  line-height: var(--lh-normal);
  margin-bottom: var(--sp-6);
  max-width: 320px;
}
.map-section__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
}
.map-section__fallback {
  font-size: var(--fs-sm);
  margin-top: var(--sp-4);
}
.map-section__fallback a {
  color: var(--brand-teal);
  text-decoration: underline;
}
.map-section__embed {
  background: var(--brand-teal-tint);
}
.map-section__embed iframe {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 400px;
}
@media (max-width: 767px) {
  .map-section {
    grid-template-columns: 1fr;
  }
  .map-section__info {
    padding: var(--sp-8) var(--sp-4);
    text-align: center;
    align-items: center;
  }
  .map-section__address {
    max-width: 100%;
  }
  .map-section__embed iframe {
    min-height: 300px;
  }
}

/* ============================================================
   FOOTER (§15)
   ============================================================ */
.site-footer {
  background: none;
  color: var(--ink);
  padding: var(--sp-16) 0 var(--sp-8);
}
.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--sp-10);
  margin-bottom: var(--sp-10);
}
.footer__logo { color: var(--brand-teal); margin-bottom: var(--sp-4); }
.footer__name {
  font-family: var(--font-display);
  font-size: var(--fs-xl);
  font-weight: var(--fw-bold);
  color: var(--ink);
  margin-bottom: var(--sp-2);
}
.footer__tagline {
  font-size: var(--fs-sm);
  font-style: italic;
  color: var(--muted);
}
.footer__heading {
  font-family: var(--font-display);
  font-size: var(--fs-base);
  font-weight: var(--fw-semibold);
  color: var(--ink);
  margin-bottom: var(--sp-4);
}
.footer__links ul { display: flex; flex-direction: column; gap: var(--sp-3); }
.footer__links a {
  font-size: var(--fs-sm);
  transition: color var(--motion-micro);
}
.footer__links a:hover { color: var(--brand-teal); }
.footer__contact address {
  font-style: normal;
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  font-size: var(--fs-sm);
}
.footer__contact a { transition: color var(--motion-micro); }
.footer__contact a:hover { color: var(--brand-teal); }
.footer__emergency p {
  font-size: var(--fs-sm);
  margin-bottom: var(--sp-4);
}
.footer__bottom {
  border-top: 1px solid color-mix(in srgb, var(--ink) 12%, transparent);
  padding-top: var(--sp-6);
  text-align: center;
  font-size: var(--fs-sm);
  color: var(--muted);
}

/* ============================================================
   MOBILE BOTTOM ACTION BAR (§8)
   ============================================================ */
.mobile-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: var(--z-mobile-bar);
  background: var(--surface);
  box-shadow: 0 -2px 12px color-mix(in srgb, var(--ink) 10%, transparent);
  padding: var(--sp-2) var(--sp-4);
  justify-content: center;
  gap: var(--sp-6);
  height: var(--mobile-bar-height);
  align-items: center;
}
.mobile-bar__btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  color: var(--ink);
  padding: var(--sp-2) var(--sp-4);
  border-radius: var(--border-radius);
  min-width: 44px;
  min-height: 44px;
  justify-content: center;
  transition: background var(--motion-micro);
}
.mobile-bar__btn:hover { background: var(--brand-teal-tint); }
.mobile-bar__btn:focus-visible {
  outline: 2px solid var(--brand-teal);
  outline-offset: 2px;
}
.mobile-bar__btn--primary {
  background: var(--ember);
  color: var(--ink);
}
.mobile-bar__btn--primary:hover {
  background: var(--ember-hover);
  color: #fff;
}

/* ============================================================
   SCROLL REVEAL ANIMATION
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--motion-reveal) var(--motion-ease-out),
              transform var(--motion-reveal) var(--motion-ease-out);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 80ms; }
.reveal-delay-2 { transition-delay: 160ms; }
.reveal-delay-3 { transition-delay: 240ms; }

/* ============================================================
   RESPONSIVE (§19)
   ============================================================ */

/* Large desktop */
@media (min-width: 1440px) {
  .container { max-width: 1360px; }
}

/* Desktop */
@media (max-width: 1023px) {
  :root { --nav-height: 128px; }
  .nav__logo-img { height: clamp(80px, 10vw, 96px); }
  .nav__links,
  .nav__actions { display: none; }
  .nav__hamburger { display: flex; }
  .mobile-bar { display: flex; }
  .hero__controls {
    left: var(--sp-4);
    bottom: calc(var(--mobile-bar-height) + var(--sp-4));
  }
  body { padding-bottom: var(--mobile-bar-height); }
}

/* Tablet */
@media (max-width: 1023px) and (min-width: 768px) {
  .services__grid { grid-template-columns: repeat(2, 1fr); }
  .facilities__grid { columns: 2; }
  .footer__grid { grid-template-columns: repeat(2, 1fr); }
  .team__grid--5 { grid-template-columns: repeat(2, 1fr); }
  .affiliations__grid { grid-template-columns: repeat(2, 1fr); }
}

/* Mobile-lg */
@media (max-width: 767px) {
  :root {
    --fs-4xl: 1.875rem;
    --fs-5xl: 2.25rem;
    --fs-6xl: 3rem;
  }
  .section { padding: var(--sp-16) 0; }
  .container { padding: 0 var(--sp-4); }

  .about__grid { grid-template-columns: 1fr; gap: var(--sp-8); }
  .about__image img { height: 350px; }

  .team__grid { grid-template-columns: 1fr; max-width: 400px; }
  .team__grid--5 { grid-template-columns: 1fr; max-width: 400px; }

  .services__grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }

  .facilities__grid { columns: 1; }

  .emergency__grid { grid-template-columns: 1fr; gap: var(--sp-10); }
  .emergency__form-wrap { padding: var(--sp-6); }
  .form-row { grid-template-columns: 1fr; }

  .trust-bar__grid { grid-template-columns: 1fr; gap: var(--sp-6); }

  .footer__grid { grid-template-columns: 1fr; gap: var(--sp-8); }

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

  .hero__actions { flex-direction: column; }
  .hero__actions .btn { width: 100%; }

  .services__toggle { flex-direction: column; align-items: stretch; max-width: 300px; margin-left: auto; margin-right: auto; }
}

/* Mobile */
@media (max-width: 480px) {
  :root {
    --fs-3xl: 1.5rem;
    --fs-4xl: 1.75rem;
  }
  .section { padding: var(--sp-12) 0; }
  .section__title { font-size: var(--fs-3xl); }

  .trust-bar__number { font-size: var(--fs-3xl); }
  .trust-bar__grid { gap: var(--sp-4); }

  .testimonials__card { padding: var(--sp-6); }
  .testimonials__text { font-size: var(--fs-base); }

  .emergency__form-wrap { padding: var(--sp-4); }
}

/* Tiny phones: keep controls on one row (swipe + dots still navigate) */
@media (max-width: 359px) {
  .hero__ctrl[data-hero="prev"],
  .hero__ctrl[data-hero="next"] { display: none; }
  .nav__logo-img { height: 64px; }
}

/* ============================================================
   REDUCED MOTION (§18)
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
  .reveal {
    opacity: 1;
    transform: none;
  }
  .hero__title,
  .hero__subtitle,
  .hero__actions,
  .hero__tagline {
    opacity: 1;
    transform: none;
  }
  .hero__particles { display: none; }
  .hero__slides { transform: none !important; }
  .service-card--flip .card-inner { transition: none; }
  .team__card, .service-card, .affiliations__item { transform: none !important; }
  .btn--primary, .btn--lg { transform: none !important; }
  .facility-item__caption { opacity: 1; transform: none; }
}

/* ============================================================
   PHASE 1: 3D MICRO-INTERACTIONS
   ============================================================ */

/* --- 3D Flip Card --- */
.service-card--flip {
  perspective: 1000px;
}
.service-card--flip .card-inner {
  position: relative;
  width: 100%;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  transform-style: preserve-3d;
}
.service-card--flip.flipped .card-inner {
  transform: rotateY(180deg);
}
.service-card--flip .card-front,
.service-card--flip .card-back {
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}
.service-card--flip .card-back {
  position: absolute;
  inset: 0;
  transform: rotateY(180deg);
  background: var(--surface);
  border-radius: var(--border-radius-lg);
  padding: var(--sp-5);
  display: flex;
  flex-direction: column;
}
.card-back__title {
  font-family: var(--font-display);
  font-size: var(--fs-lg);
  font-weight: var(--fw-semibold);
  margin-bottom: var(--sp-4);
  padding-right: var(--sp-8);
}
.card-back__content {
  font-size: var(--fs-sm);
  color: var(--muted);
  line-height: var(--lh-normal);
  flex: 1;
  overflow-y: auto;
}
.card-back__close {
  position: absolute;
  top: var(--sp-3);
  right: var(--sp-3);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--brand-teal-tint);
  color: var(--ink);
  font-size: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--motion-micro);
  border: none;
  cursor: pointer;
}
.card-back__close:hover {
  background: var(--brand-teal);
  color: #fff;
}
.card-back__close:focus-visible {
  outline: 2px solid var(--brand-teal);
  outline-offset: 2px;
}

/* --- Guard: only apply tilt/flip on pointer devices with no reduced motion --- */
@media (pointer: fine) and (prefers-reduced-motion: no-preference) {
  .team__card,
  .service-card,
  .affiliations__item {
    will-change: transform;
    transform-style: preserve-3d;
  }
  .service-card__img img {
    will-change: transform;
  }

  /* Hover lift/scale effects — only on fine pointer */
  .team__card:hover,
  .service-card:hover,
  .facility-item:hover,
  .affiliations__item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
  }
  .team__card:hover .team__photo,
  .service-card:hover .service-card__img img,
  .facility-item:hover img {
    transform: scale(1.03);
  }
  .facility-item:hover .facility-item__caption {
    opacity: 1;
  }
  .services__tab:hover {
    background: var(--brand-teal-tint);
  }
}

/* ============================================================
   FOCUS VISIBLE (§20)
   ============================================================ */
:focus-visible {
  outline: 2px solid var(--brand-teal);
  outline-offset: 2px;
}
:focus:not(:focus-visible) {
  outline: none;
}

/* ============================================================
   FLOATING BUTTONS
   ============================================================ */
html {
  scroll-padding-top: var(--nav-height);
}
.whatsapp-btn {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: var(--z-sticky);
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #25D366;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
  transition: transform var(--motion-standard), box-shadow var(--motion-standard);
}
.whatsapp-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.5);
}
.whatsapp-btn:focus-visible {
  outline: 2px solid var(--brand-teal);
  outline-offset: 2px;
}
.back-to-top {
  position: fixed;
  bottom: 90px;
  right: 28px;
  z-index: var(--z-sticky);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--ink);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity var(--motion-standard), transform var(--motion-standard), background var(--motion-standard);
  pointer-events: none;
}
.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.back-to-top:hover {
  background: var(--brand-teal);
}
.back-to-top:focus-visible {
  outline: 2px solid var(--brand-teal);
  outline-offset: 2px;
}
@media (max-width: 767px) {
  .whatsapp-btn { bottom: 16px; right: 16px; width: 50px; height: 50px; }
  .whatsapp-btn svg { width: 24px; height: 24px; }
  .back-to-top { bottom: 76px; right: 20px; width: 36px; height: 36px; }
}

/* ============================================================
   PRINT
   ============================================================ */
@media print {
  .site-header, .mobile-bar, .hero__particles, .hero__controls, .lightbox, .mobile-nav, .whatsapp-btn, .back-to-top { display: none; }
  .hero { min-height: auto; margin-top: 0; background: #fff; color: #000; }
  .section--dark { background: #f5f5f5; color: #000; }
  body { background: #fff; }
}