/* ==========================================================================
   DEZIGNER SMILES DENTAL CLINIC — PREMIUM DESIGN SYSTEM & ZERO-OVERLAP CSS
   Ramamurthy Nagar, Bengaluru | Concept Demo — Prepared by MYRQUEL Studio
   ========================================================================== */

:root {
  /* Color Palette — Dental Clinical Luxury (White, Deep Navy, Soft Sky Blue, Warm Champagne) */
  --color-primary: #0F2942;
  --color-primary-hover: #163A5F;
  --color-secondary: #1E5688;
  --color-accent: #0284C7;
  --color-accent-soft: #E0F2FE;
  --color-gold: #B68D52;
  --color-gold-soft: #FAF5EC;
  --color-success: #0D9488;
  --color-success-soft: #CCFBF1;
  --color-bg: #F8FAFC;
  --color-surface: #FFFFFF;
  --color-surface-alt: #F1F6FB;
  --color-surface-dark: #0A1D30;
  --color-heading: #0A192F;
  --color-body: #334155;
  --color-muted: #5B6B7F;
  --color-border: #DCE6F1;
  --color-border-strong: #C3D4E6;

  /* Shadow Scale */
  --shadow-xs: 0 1px 2px rgba(15, 41, 66, 0.05);
  --shadow-sm: 0 4px 12px rgba(15, 41, 66, 0.06);
  --shadow-md: 0 10px 28px rgba(15, 41, 66, 0.08);
  --shadow-lg: 0 18px 42px rgba(15, 41, 66, 0.12);

  /* Border Radius Scale */
  --radius-xs: 0.375rem;
  --radius-sm: 0.625rem;
  --radius-md: 0.875rem;
  --radius-lg: 1.25rem;
  --radius-xl: 1.75rem;
  --radius-pill: 9999px;

  /* Typography Scale (Max 2 Complementary Font Families) */
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Fraunces', Georgia, serif;

  --text-xs: clamp(0.75rem, 0.72rem + 0.15vw, 0.825rem);
  --text-sm: clamp(0.875rem, 0.84rem + 0.18vw, 0.95rem);
  --text-base: clamp(0.975rem, 0.94rem + 0.2vw, 1.0625rem);
  --text-lg: clamp(1.075rem, 1.02rem + 0.3vw, 1.225rem);
  --text-xl: clamp(1.2rem, 1.1rem + 0.45vw, 1.45rem);
  --text-2xl: clamp(1.4rem, 1.25rem + 0.75vw, 1.85rem);

  /* Spacing Scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: clamp(3.25rem, 6vw, 5.5rem);

  /* Transitions */
  --transition-fast: 180ms cubic-bezier(0.22, 1, 0.36, 1);
  --transition-smooth: 280ms cubic-bezier(0.22, 1, 0.36, 1);
}

/* ==========================================================================
   REQUIRED ZERO-OVERLAP CSS FOUNDATION
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-width: 0;
  font-family: var(--font-sans);
  font-size: var(--text-base);
  color: var(--color-body);
  background-color: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img, video, svg {
  max-width: 100%;
}

img, video {
  height: auto;
  display: block;
}

.container {
  width: min(100% - 2rem, 1200px);
  margin-inline: auto;
}

.grid {
  display: grid;
  grid-template-columns:
    repeat(auto-fit, minmax(min(100%, 280px), 1fr));
  gap: clamp(1rem, 2vw, 2rem);
}

.grid > *,
.flex > * {
  min-width: 0;
}

h1, h2, h3, h4, p {
  overflow-wrap: break-word;
  margin-top: 0;
}

h1, h2, h3, h4 {
  color: var(--color-heading);
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.015em;
}

h1 {
  font-size: clamp(2.15rem, 4.4vw, 3.85rem);
  line-height: 1.08;
}

h2 {
  font-size: clamp(1.75rem, 3.2vw, 2.85rem);
  line-height: 1.15;
}

h3 {
  font-size: var(--text-xl);
  line-height: 1.28;
  font-family: var(--font-sans);
  font-weight: 700;
}

p {
  line-height: 1.7;
  margin-bottom: var(--space-4);
}

p:last-child {
  margin-bottom: 0;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

button, .btn {
  max-width: 100%;
  white-space: normal;
  overflow-wrap: anywhere;
  text-align: center;
  font-family: var(--font-sans);
  cursor: pointer;
}

section {
  position: relative;
}

/* Focus Accessibility */
:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

/* Skip Link */
.skip-link {
  position: fixed;
  top: -100px;
  left: 1rem;
  z-index: 1000;
  background: var(--color-primary);
  color: #FFFFFF;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  transition: top var(--transition-fast);
}

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

/* ==========================================================================
   UTILITY & LAYOUT HELPERS
   ========================================================================== */
.flex {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.section-padding {
  padding-block: var(--space-20);
}

.bg-surface {
  background-color: var(--color-surface);
}

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

.bg-dark {
  background-color: var(--color-surface-dark);
  color: #E2E8F0;
}

.bg-dark h2,
.bg-dark h3,
.bg-dark h4 {
  color: #FFFFFF;
}

.section-header {
  max-width: 740px;
  margin-inline: auto;
  text-align: center;
  margin-bottom: clamp(2rem, 4vw, 3.25rem);
}

.section-header--left {
  margin-inline: 0;
  text-align: left;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.875rem;
  border-radius: var(--radius-pill);
  background-color: var(--color-accent-soft);
  color: var(--color-primary);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-4);
  border: 1px solid rgba(2, 132, 199, 0.2);
}

.eyebrow--gold {
  background-color: var(--color-gold-soft);
  color: #7C5826;
  border-color: rgba(182, 141, 82, 0.3);
}

.eyebrow--dark {
  background-color: rgba(255, 255, 255, 0.1);
  color: #7DD3FC;
  border-color: rgba(125, 211, 252, 0.25);
}

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--color-muted);
  margin-top: var(--space-3);
}

.bg-dark .section-subtitle {
  color: #CBD5E1;
}

/* ==========================================================================
   BUTTON SYSTEM (BUTTON TEXT SAFETY GUARANTEED)
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  min-height: 48px;
  padding: 0.75rem 1.4rem;
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: 700;
  line-height: 1.3;
  border: 1.5px solid transparent;
  transition: transform var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
  text-decoration: none;
}

.btn svg {
  flex-shrink: 0;
  width: 1.15rem;
  height: 1.15rem;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background-color: var(--color-primary);
  color: #FFFFFF;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  box-shadow: var(--shadow-md);
}

.btn-whatsapp {
  background-color: #0D7A5F;
  color: #FFFFFF;
  box-shadow: var(--shadow-sm);
}

.btn-whatsapp:hover {
  background-color: #09634C;
  box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
  background-color: var(--color-surface-alt);
  border-color: var(--color-primary);
}

.btn-outline-light {
  background-color: rgba(255, 255, 255, 0.08);
  color: #FFFFFF;
  border-color: rgba(255, 255, 255, 0.3);
}

.btn-outline-light:hover {
  background-color: rgba(255, 255, 255, 0.16);
  border-color: #FFFFFF;
}

.btn-sm {
  min-height: 42px;
  padding: 0.55rem 1rem;
  font-size: var(--text-xs);
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.875rem;
}

/* ==========================================================================
   TOP ANNOUNCEMENT & CREDIBILITY RIBBON
   ========================================================================== */
.top-ribbon {
  background-color: var(--color-primary);
  color: #F1F5F9;
  font-size: var(--text-xs);
  padding-block: 0.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.top-ribbon__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1.25rem;
}

.top-ribbon__items {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1.25rem;
}

.top-ribbon__item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #34D399;
  box-shadow: 0 0 0 3px rgba(52, 211, 153, 0.25);
  flex-shrink: 0;
}

.status-dot--closed {
  background-color: #FBBF24;
  box-shadow: 0 0 0 3px rgba(251, 191, 36, 0.25);
}

.demo-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.18rem 0.6rem;
  border-radius: var(--radius-pill);
  background-color: rgba(255, 255, 255, 0.14);
  color: #E0F2FE;
  font-weight: 600;
  font-size: 0.72rem;
}

/* ==========================================================================
   SECTION 1 — PREMIUM STICKY NAVIGATION
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition-fast);
}

.site-header--scrolled {
  box-shadow: var(--shadow-sm);
}

.nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 76px;
  padding-block: 0.5rem;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
}

.brand-logo__mark {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: #FFFFFF;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: var(--shadow-xs);
}

.brand-logo__text {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.brand-logo__name {
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
  font-weight: 700;
  color: var(--color-heading);
  line-height: 1.15;
}

.brand-logo__sub {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--color-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.25rem 1.15rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-body);
  padding: 0.4rem 0.25rem;
  border-bottom: 2px solid transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-accent);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-xs);
  border: 1px solid var(--color-border-strong);
  background: var(--color-surface);
  color: var(--color-heading);
  padding: 0;
}

/* Mobile Menu Drawer */
.mobile-nav {
  display: none;
  border-top: 1px solid var(--color-border);
  background-color: var(--color-surface);
  padding: 1rem 0 1.25rem;
}

.mobile-nav.is-open {
  display: block;
}

.mobile-nav__list {
  list-style: none;
  margin: 0 0 1rem 0;
  padding: 0;
  display: grid;
  gap: 0.25rem;
}

.mobile-nav__list a {
  display: block;
  padding: 0.7rem 0.75rem;
  border-radius: var(--radius-xs);
  font-weight: 600;
  color: var(--color-heading);
}

.mobile-nav__list a:hover {
  background-color: var(--color-surface-alt);
}

.mobile-nav__ctas {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr));
  gap: 0.75rem;
}

/* ==========================================================================
   SECTION 2 — HIGH-IMPACT HERO
   ========================================================================== */
.hero {
  padding-block: clamp(2.5rem, 5vw, 4.75rem);
  background: radial-gradient(circle at 85% 15%, rgba(2, 132, 199, 0.08) 0%, transparent 45%),
              linear-gradient(180deg, #FFFFFF 0%, var(--color-surface-alt) 100%);
  border-bottom: 1px solid var(--color-border);
}

.hero__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 440px), 1fr));
  align-items: center;
  gap: clamp(2rem, 4vw, 3.5rem);
}

.hero__content {
  min-width: 0;
}

.hero__title-accent {
  color: var(--color-secondary);
  font-style: italic;
}

.hero__lead {
  font-size: var(--text-lg);
  color: var(--color-body);
  margin-block: var(--space-5) var(--space-6);
  max-width: 60ch;
}

.hero__meta-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
  margin-top: var(--space-6);
}

.meta-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-xs);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-heading);
  box-shadow: var(--shadow-xs);
}

.meta-pill svg {
  color: var(--color-accent);
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
}

.hero__visual {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.hero__image-frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border-strong);
  box-shadow: var(--shadow-lg);
  background-color: var(--color-surface);
}

.hero__image-frame img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.hero__doctor-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 210px), 1fr));
  gap: 0.85rem;
}

.hero__info-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.95rem 1.15rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
}

.hero__info-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-xs);
  background-color: var(--color-accent-soft);
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.hero__info-title {
  font-weight: 700;
  font-size: var(--text-sm);
  color: var(--color-heading);
  margin-bottom: 0.15rem;
}

.hero__info-desc {
  font-size: var(--text-xs);
  color: var(--color-muted);
  margin: 0;
  line-height: 1.45;
}

/* ==========================================================================
   SECTION 3 — TRUST & CREDIBILITY METRICS
   ========================================================================== */
.trust-bar {
  padding-block: clamp(2rem, 4vw, 3rem);
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 230px), 1fr));
  gap: 1.25rem;
}

.trust-card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.35rem 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.trust-card__value {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 2.6vw, 2.35rem);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.1;
}

.trust-card__label {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-heading);
}

.trust-card__meta {
  font-size: var(--text-xs);
  color: var(--color-muted);
  margin: 0;
}

.trust-card__link {
  color: var(--color-accent);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ==========================================================================
   SECTION 4 — ABOUT THE CLINIC & DR. THABITHA RAO
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 420px), 1fr));
  gap: clamp(2rem, 4vw, 3.5rem);
  align-items: start;
}

.doctor-profile-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.doctor-profile-card__media {
  position: relative;
  border-bottom: 1px solid var(--color-border);
}

.doctor-profile-card__media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.doctor-profile-card__body {
  padding: clamp(1.35rem, 2.5vw, 2rem);
}

.credential-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-block: 0.85rem 1.15rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.32rem 0.75rem;
  border-radius: var(--radius-pill);
  font-size: var(--text-xs);
  font-weight: 600;
  background-color: var(--color-surface-alt);
  color: var(--color-primary);
  border: 1px solid var(--color-border-strong);
}

.badge--gold {
  background-color: var(--color-gold-soft);
  color: #7C5826;
  border-color: rgba(182, 141, 82, 0.35);
}

.badge--teal {
  background-color: var(--color-success-soft);
  color: #0F766E;
  border-color: rgba(13, 148, 136, 0.3);
}

.feature-checklist {
  list-style: none;
  padding: 0;
  margin: var(--space-6) 0;
  display: grid;
  gap: 0.9rem;
}

.feature-checklist li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.95rem 1.1rem;
}

.feature-checklist__icon {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background-color: var(--color-accent-soft);
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 0.1rem;
}

/* ==========================================================================
   SECTION 5 — SERVICES & TRANSPARENT PUBLISHED FEE ESTIMATOR
   ========================================================================== */
.filter-tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: var(--space-8);
}

.filter-tab {
  padding: 0.6rem 1.15rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border-strong);
  background-color: var(--color-surface);
  color: var(--color-body);
  font-size: var(--text-xs);
  font-weight: 700;
  transition: all var(--transition-fast);
}

.filter-tab:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.filter-tab.is-active {
  background-color: var(--color-primary);
  color: #FFFFFF;
  border-color: var(--color-primary);
}

.service-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1.15rem;
  box-shadow: var(--shadow-xs);
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), border-color var(--transition-smooth);
}

.service-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-border-strong);
}

.service-card[hidden] {
  display: none !important;
}

.service-card__top {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.service-card__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
}

.service-card__icon {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-sm);
  background-color: var(--color-surface-alt);
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 1px solid var(--color-border);
}

.price-tag {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-end;
  background-color: var(--color-gold-soft);
  border: 1px solid rgba(182, 141, 82, 0.35);
  padding: 0.3rem 0.7rem;
  border-radius: var(--radius-xs);
  text-align: right;
}

.price-tag__label {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #7C5826;
  font-weight: 700;
}

.price-tag__amount {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-heading);
  line-height: 1.15;
}

.service-card__footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.65rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}

/* Interactive Fee Estimator Box */
.estimator-panel {
  margin-top: var(--space-12);
  background-color: var(--color-surface);
  border: 1.5px solid var(--color-border-strong);
  border-radius: var(--radius-lg);
  padding: clamp(1.35rem, 3vw, 2.25rem);
  box-shadow: var(--shadow-md);
}

.estimator-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr));
  gap: clamp(1.5rem, 3vw, 2.5rem);
  align-items: start;
}

.estimator-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr));
  gap: 0.65rem;
}

.estimator-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.65rem;
  padding: 0.75rem 0.9rem;
  border-radius: var(--radius-xs);
  border: 1px solid var(--color-border);
  background-color: var(--color-bg);
  cursor: pointer;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.estimator-item:hover {
  border-color: var(--color-accent);
}

.estimator-item.is-selected {
  background-color: var(--color-accent-soft);
  border-color: var(--color-accent);
}

.estimator-item__left {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  min-width: 0;
}

.estimator-item input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--color-primary);
  flex-shrink: 0;
  cursor: pointer;
}

.estimator-item__name {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-heading);
}

.estimator-item__price {
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-primary);
  flex-shrink: 0;
}

.estimator-summary {
  background-color: var(--color-surface-alt);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  padding: 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.estimator-summary__total-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 0.75rem;
  border-block: 1px solid var(--color-border-strong);
}

.estimator-summary__total {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 2.5vw, 2.2rem);
  font-weight: 700;
  color: var(--color-primary);
}

/* ==========================================================================
   SECTION 6 — WHY CHOOSE US
   ========================================================================== */
.why-card {
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.why-card__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-xs);
  background-color: rgba(125, 211, 252, 0.16);
  color: #7DD3FC;
  font-weight: 700;
  font-size: var(--text-xs);
}

.why-card p {
  color: #CBD5E1;
  font-size: var(--text-sm);
  margin: 0;
}

/* ==========================================================================
   SECTION 7 — PATIENT EXPERIENCE / 4-STEP PROCESS
   ========================================================================== */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr));
  gap: 1.25rem;
}

.step-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  box-shadow: var(--shadow-xs);
}

.step-card__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.step-card__num {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: #FFFFFF;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
}

/* ==========================================================================
   SECTION 8 — GALLERY / VISUAL SHOWCASE
   ========================================================================== */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 270px), 1fr));
  gap: 1.25rem;
}

.gallery-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-xs);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
}

.gallery-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.gallery-card__img-wrap {
  overflow: hidden;
  background-color: var(--color-surface-alt);
}

.gallery-card__img-wrap img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform 400ms ease;
}

.gallery-card:hover .gallery-card__img-wrap img {
  transform: scale(1.03);
}

.gallery-card__caption {
  padding: 1.1rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.gallery-card__title {
  font-weight: 700;
  font-size: var(--text-sm);
  color: var(--color-heading);
  margin: 0;
}

.gallery-card__desc {
  font-size: var(--text-xs);
  color: var(--color-muted);
  margin: 0;
}

/* ==========================================================================
   SECTION 9 — VERIFIED PATIENT TESTIMONIALS
   ========================================================================== */
.review-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1.15rem;
  box-shadow: var(--shadow-xs);
}

.review-card[hidden] {
  display: none !important;
}

.review-card__stars {
  color: #D97706;
  font-size: 1rem;
  letter-spacing: 0.08em;
}

.review-card__quote {
  font-size: var(--text-sm);
  color: var(--color-body);
  font-style: italic;
  margin: 0;
}

.review-card__author {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--color-border);
}

.review-card__name {
  font-weight: 700;
  font-size: var(--text-sm);
  color: var(--color-heading);
}

.review-card__source {
  font-size: var(--text-xs);
  color: var(--color-muted);
}

/* ==========================================================================
   SECTION 10 — ACCESSIBLE FAQ ACCORDION
   ========================================================================== */
.faq-container {
  max-width: 860px;
  margin-inline: auto;
}

.faq-controls {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 0.85rem;
}

.faq-list {
  display: grid;
  gap: 0.85rem;
}

.faq-item {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item.is-open {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-xs);
}

.faq-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.15rem 1.35rem;
  background: transparent;
  border: none;
  text-align: left;
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-heading);
}

.faq-trigger:hover {
  background-color: var(--color-surface-alt);
}

.faq-trigger__icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background-color: var(--color-surface-alt);
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform var(--transition-fast), background-color var(--transition-fast);
}

.faq-item.is-open .faq-trigger__icon {
  transform: rotate(180deg);
  background-color: var(--color-primary);
  color: #FFFFFF;
}

.faq-panel {
  padding: 0 1.35rem 1.25rem;
  color: var(--color-body);
  font-size: var(--text-sm);
  border-top: 1px solid var(--color-border);
  padding-top: 1rem;
}

.faq-panel[hidden] {
  display: none !important;
}

/* ==========================================================================
   SECTION 11 — PREMIUM CONTACT & WHATSAPP APPOINTMENT COMPOSER
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 380px), 1fr));
  gap: clamp(1.75rem, 3.5vw, 3rem);
  align-items: start;
}

.contact-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: clamp(1.35rem, 2.5vw, 2rem);
  box-shadow: var(--shadow-md);
}

.contact-info-list {
  list-style: none;
  padding: 0;
  margin: var(--space-5) 0;
  display: grid;
  gap: 1rem;
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  padding: 0.9rem 1rem;
  border-radius: var(--radius-sm);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
}

.contact-info-item__icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-xs);
  background-color: var(--color-accent-soft);
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 210px), 1fr));
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.form-label {
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-heading);
}

.form-control {
  width: 100%;
  min-height: 46px;
  padding: 0.65rem 0.9rem;
  border-radius: var(--radius-xs);
  border: 1px solid var(--color-border-strong);
  background-color: var(--color-surface);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  color: var(--color-heading);
  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 3px rgba(2, 132, 199, 0.18);
}

textarea.form-control {
  min-height: 92px;
  resize: vertical;
}

.form-feedback {
  margin-top: 0.85rem;
  padding: 1rem;
  border-radius: var(--radius-sm);
  background-color: var(--color-success-soft);
  border: 1px solid rgba(13, 148, 136, 0.35);
  color: #0F5132;
  font-size: var(--text-xs);
}

.form-feedback[hidden] {
  display: none !important;
}

/* ==========================================================================
   SECTION 12 — PROFESSIONAL FOOTER
   ========================================================================== */
.site-footer {
  background-color: #071320;
  color: #94A3B8;
  padding-block: clamp(3rem, 5vw, 4.5rem) 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 230px), 1fr));
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.footer-title {
  color: #FFFFFF;
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 1rem;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.55rem;
  font-size: var(--text-sm);
}

.footer-links a:hover {
  color: #FFFFFF;
  text-decoration: underline;
}

.footer-bottom {
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: var(--text-xs);
}

/* ==========================================================================
   RESPONSIVE BREAKPOINTS (320px, 375px, 430px, 768px, 1024px, 1440px, 1920px)
   ========================================================================== */
@media (max-width: 1024px) {
  .nav-links,
  .nav-actions .btn-secondary {
    display: none;
  }
  .nav-toggle {
    display: inline-flex;
  }
}

@media (max-width: 640px) {
  .top-ribbon__inner {
    justify-content: center;
    text-align: center;
  }
  .nav-actions .btn-primary {
    display: none;
  }
  .btn-group {
    flex-direction: column;
    align-items: stretch;
  }
  .btn-group .btn {
    width: 100%;
  }
  .service-card__header {
    flex-direction: column;
    align-items: flex-start;
  }
  .price-tag {
    align-items: flex-start;
    text-align: left;
  }
}

@media (max-width: 360px) {
  .container {
    width: calc(100% - 1.25rem);
  }
  .brand-logo__sub {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}