/* =============================================
   Audiologia Prestige — Premium Dark Theme
   WCAG 2.1 AA+ · Senior-first (60+)
   ============================================= */

:root {
  --color-bg-deep: #0a0a0a;
  --color-bg-charcoal: #1a1a1a;
  --color-gold: #c5a065;
  --color-gold-hover: #d4b47a;
  --color-navy: #1e293b;
  --color-text: #f8fafc;
  --color-text-muted: #cbd5e1;
  --color-border: rgba(197, 160, 101, 0.25);
  --font-sans: "Inter", "SF Pro Display", "Outfit", system-ui, sans-serif;
  --touch-min: 44px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --transition-base: 200ms ease;
  --transition-slow: 400ms ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  font-family: var(--font-sans);
  font-size: 18px;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg-deep);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Skip link — accessibility */
.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  z-index: 9999;
  padding: 12px 24px;
  background: var(--color-gold);
  color: var(--color-bg-deep);
  font-weight: 600;
  border-radius: 8px;
  text-decoration: none;
  transition: top var(--transition-base);
}

.skip-link:focus {
  top: 16px;
  outline: 3px solid var(--color-text);
  outline-offset: 2px;
}

/* Premium gradient background */
.bg-premium {
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(197, 160, 101, 0.08), transparent),
    linear-gradient(180deg, var(--color-bg-charcoal) 0%, var(--color-bg-deep) 40%, var(--color-bg-deep) 100%);
}

/* Gold accent text */
.text-gold {
  color: var(--color-gold);
}

/* Section spacing */
.section-padding {
  padding: 80px 24px;
}

@media (min-width: 768px) {
  .section-padding {
    padding: 112px 32px;
  }
}

/* Scroll reveal animations */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 100ms; }
.reveal-delay-2 { transition-delay: 200ms; }
.reveal-delay-3 { transition-delay: 300ms; }

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* Buttons — minimum 44×44 touch target */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: var(--touch-min);
  min-width: var(--touch-min);
  padding: 12px 28px;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  border-radius: 9999px;
  border: 2px solid transparent;
  cursor: pointer;
  transition:
    background-color var(--transition-base),
    border-color var(--transition-base),
    color var(--transition-base),
    transform var(--transition-base),
    box-shadow var(--transition-base);
}

.btn:focus-visible {
  outline: 3px solid var(--color-gold);
  outline-offset: 3px;
}

.btn:active:not(:disabled) {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--color-gold);
  color: var(--color-bg-deep);
}

.btn-primary:hover:not(:disabled) {
  background: var(--color-gold-hover);
  box-shadow: 0 8px 32px rgba(197, 160, 101, 0.35);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-secondary {
  background: var(--color-navy);
  color: var(--color-text);
  border-color: rgba(248, 250, 252, 0.15);
}

.btn-secondary:hover:not(:disabled) {
  background: #334155;
  border-color: rgba(248, 250, 252, 0.3);
}

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

.btn-ghost:hover:not(:disabled) {
  border-color: var(--color-gold);
  color: var(--color-gold);
}

.btn-nav {
  width: 100%;
  justify-content: flex-start;
  border-radius: var(--radius-lg);
  padding: 16px 20px;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(197, 160, 101, 0.1);
  transition: box-shadow var(--transition-base);
}

.header.is-scrolled {
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--color-text);
  min-height: var(--touch-min);
}

.logo-icon {
  width: 40px;
  height: 40px;
  color: var(--color-gold);
  flex-shrink: 0;
}

.logo-text {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.12em;
  line-height: 1.2;
}

@media (min-width: 768px) {
  .logo-text {
    font-size: 15px;
  }
}

.nav-desktop {
  display: none;
  align-items: center;
  gap: 8px;
}

@media (min-width: 1024px) {
  .nav-desktop {
    display: flex;
  }
}

.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: var(--touch-min);
  padding: 8px 16px;
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 16px;
  font-weight: 500;
  border-radius: 8px;
  transition: color var(--transition-base), background-color var(--transition-base);
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--color-gold);
  background: rgba(197, 160, 101, 0.08);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-cta {
  display: none;
  font-size: 16px;
  padding: 10px 24px;
}

@media (min-width: 640px) {
  .header-cta {
    display: inline-flex;
  }
}

.menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--touch-min);
  height: var(--touch-min);
  padding: 0;
  background: transparent;
  border: 2px solid var(--color-border);
  border-radius: 12px;
  color: var(--color-text);
  cursor: pointer;
  transition: border-color var(--transition-base), background-color var(--transition-base);
}

.menu-toggle:hover,
.menu-toggle:focus-visible {
  border-color: var(--color-gold);
  background: rgba(197, 160, 101, 0.08);
}

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

/* Mobile menu */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 999;
  background: rgba(10, 10, 10, 0.96);
  backdrop-filter: blur(20px);
  padding: 96px 24px 32px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}

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

.mobile-menu-close {
  position: absolute;
  top: 20px;
  right: 24px;
}

/* Hero */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 24px 80px;
}

.hero-grid {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  align-items: center;
}

@media (min-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr 1fr;
    gap: 64px;
  }
}

.hero-badge {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 16px;
}

.hero-title {
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: clamp(1.125rem, 2vw, 1.25rem);
  color: var(--color-text-muted);
  margin-bottom: 40px;
  max-width: 540px;
}

.hero-image-wrapper {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  aspect-ratio: 4 / 5;
  background: linear-gradient(135deg, #1e293b 0%, #0a0a0a 100%);
}

.hero-image-wrapper::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(10, 10, 10, 0.6) 100%);
  z-index: 1;
  pointer-events: none;
}

.hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

/* Cards */
.card {
  background: rgba(26, 26, 26, 0.8);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: border-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
}

.card:hover {
  border-color: rgba(197, 160, 101, 0.5);
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4);
}

.card-image {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.card-body {
  padding: 24px;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.card-text {
  color: var(--color-text-muted);
  font-size: 16px;
}

/* Pillar icons */
.pillar-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(197, 160, 101, 0.12);
  border-radius: 12px;
  color: var(--color-gold);
  margin-bottom: 16px;
}

/* Gallery */
.gallery-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

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

.gallery-item {
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-xl);
  overflow: hidden;
  position: relative;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 600ms ease;
}

.gallery-item:hover img {
  transform: scale(1.05);
}

.gallery-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 20px;
  background: linear-gradient(transparent, rgba(10, 10, 10, 0.9));
  font-weight: 600;
  font-size: 16px;
}

/* Team cards */
.team-card {
  text-align: center;
  padding: 32px 24px;
}

.team-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--color-gold);
  margin: 0 auto 16px;
}

.team-name {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.team-role {
  color: var(--color-gold);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 8px;
}

.team-bio {
  color: var(--color-text-muted);
  font-size: 15px;
}

/* Authority block */
.authority-block {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
  padding: 48px;
  background: rgba(30, 41, 59, 0.4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
}

@media (min-width: 768px) {
  .authority-block {
    grid-template-columns: 1fr auto;
  }
}

.quote-text {
  font-size: 1.25rem;
  font-style: italic;
  line-height: 1.6;
  color: var(--color-text-muted);
}

.quote-author {
  margin-top: 16px;
  font-weight: 600;
  color: var(--color-gold);
}

/* Location section */
.location-card {
  background: rgba(26, 26, 26, 0.9);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.location-info {
  padding: 32px;
}

.map-container {
  position: relative;
  width: 100%;
  height: 320px;
  background: #1a1a1a;
}

@media (min-width: 768px) {
  .map-container {
    height: 400px;
  }
}

.map-container iframe {
  width: 100%;
  height: 100%;
  border: 0;
  filter: grayscale(30%) contrast(1.1) brightness(0.85);
}

.map-overlay-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: rgba(10, 10, 10, 0.9);
  border: 1px solid var(--color-border);
  border-radius: 9999px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-gold);
  z-index: 2;
}

.amenity-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.amenity-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: rgba(197, 160, 101, 0.1);
  border: 1px solid var(--color-border);
  border-radius: 9999px;
  font-size: 15px;
  font-weight: 500;
}

.nav-buttons {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 32px;
}

@media (min-width: 640px) {
  .nav-buttons {
    grid-template-columns: 1fr 1fr;
  }
}

.btn-waze {
  background: #33ccff;
  color: #0a0a0a;
  border-color: #33ccff;
}

.btn-waze:hover:not(:disabled) {
  background: #5dd9ff;
  box-shadow: 0 8px 24px rgba(51, 204, 255, 0.35);
}

.btn-maps {
  background: #ffffff;
  color: #0a0a0a;
  border-color: #ffffff;
}

.btn-maps:hover:not(:disabled) {
  background: #f1f5f9;
  box-shadow: 0 8px 24px rgba(255, 255, 255, 0.2);
}

/* Footer */
.footer {
  background: var(--color-bg-charcoal);
  border-top: 1px solid var(--color-border);
  padding: 64px 24px 32px;
}

.footer-grid {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

.footer-note {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
}

.footer-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(197, 160, 101, 0.1);
  border-radius: 9999px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-gold);
}

.footer-link {
  display: inline-flex;
  align-items: center;
  min-height: var(--touch-min);
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-base);
}

.footer-link:hover,
.footer-link:focus-visible {
  color: var(--color-gold);
}

/* Modal — Booking */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}

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

.modal {
  width: 100%;
  max-width: 480px;
  background: var(--color-bg-charcoal);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 40px 32px;
  position: relative;
  transform: translateY(16px);
  transition: transform var(--transition-base);
}

.modal-overlay.is-open .modal {
  transform: translateY(0);
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: var(--touch-min);
  height: var(--touch-min);
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 2px solid var(--color-border);
  border-radius: 12px;
  color: var(--color-text);
  cursor: pointer;
  transition: border-color var(--transition-base);
}

.modal-close:hover,
.modal-close:focus-visible {
  border-color: var(--color-gold);
}

.modal-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.modal-subtitle {
  color: var(--color-text-muted);
  font-size: 16px;
  margin-bottom: 32px;
}

/* Step indicator */
.step-indicator {
  display: flex;
  gap: 8px;
  margin-bottom: 32px;
}

.step-dot {
  flex: 1;
  height: 4px;
  background: rgba(248, 250, 252, 0.15);
  border-radius: 2px;
  transition: background-color var(--transition-base);
}

.step-dot.is-active,
.step-dot.is-completed {
  background: var(--color-gold);
}

/* Form */
.form-group {
  margin-bottom: 24px;
}

.form-label {
  display: block;
  font-weight: 600;
  margin-bottom: 8px;
  font-size: 16px;
}

.form-input,
.form-select {
  width: 100%;
  min-height: var(--touch-min);
  padding: 12px 16px;
  font-size: 18px;
  font-family: inherit;
  color: var(--color-text);
  background: rgba(10, 10, 10, 0.6);
  border: 2px solid var(--color-border);
  border-radius: 12px;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.form-input:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-gold);
  box-shadow: 0 0 0 3px rgba(197, 160, 101, 0.2);
}

.form-input::placeholder {
  color: #64748b;
}

.form-error {
  color: #f87171;
  font-size: 14px;
  margin-top: 6px;
  display: none;
}

.form-error.is-visible {
  display: block;
}

.form-actions {
  display: flex;
  gap: 12px;
  margin-top: 32px;
}

.form-actions .btn {
  flex: 1;
}

.booking-step {
  display: none;
}

.booking-step.is-active {
  display: block;
}

/* Success state */
.success-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(197, 160, 101, 0.15);
  border-radius: 50%;
  color: var(--color-gold);
}

.success-message {
  text-align: center;
}

/* Section titles */
.section-label {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.section-desc {
  color: var(--color-text-muted);
  max-width: 640px;
  margin-bottom: 48px;
}

/* Container */
.container {
  max-width: 1280px;
  margin: 0 auto;
}

/* Skeleton loading (initial page load) */
.skeleton {
  background: linear-gradient(90deg, #1a1a1a 25%, #2a2a2a 50%, #1a1a1a 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

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

.hidden {
  display: none !important;
}

/* Floating WhatsApp */
.whatsapp-float {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  background: #25d366;
  color: #fff;
  border-radius: 50%;
  box-shadow: 0 8px 32px rgba(37, 211, 102, 0.4);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.whatsapp-float:hover,
.whatsapp-float:focus-visible {
  transform: scale(1.06);
  box-shadow: 0 12px 40px rgba(37, 211, 102, 0.5);
  outline: 3px solid var(--color-gold);
  outline-offset: 3px;
}

/* Contact cards */
.contact-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 32px;
}

@media (min-width: 640px) {
  .contact-cards {
    grid-template-columns: repeat(3, 1fr);
  }
}

.contact-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 24px;
  background: rgba(10, 10, 10, 0.5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: var(--color-text);
  min-height: var(--touch-min);
  transition: border-color var(--transition-base), transform var(--transition-base);
}

.contact-card:hover,
.contact-card:focus-visible {
  border-color: var(--color-gold);
  transform: translateY(-2px);
}

.contact-card-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-gold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.contact-card-value {
  font-size: 1.125rem;
  font-weight: 600;
}