/* ============================================
   Physicians Eye Clinic — Styles
   ============================================ */

:root {
  --color-background-primary: #ffffff;
  --color-background-secondary: #f5f4ef;
  --color-background-tertiary: #ebebe5;
  --color-background-info: #E6F1FB;

  --color-text-primary: #1a1a1a;
  --color-text-secondary: #6b6b67;
  --color-text-tertiary: #999;
  --color-text-info: #0C447C;

  --color-border-tertiary: rgba(0,0,0,0.08);
  --color-border-secondary: rgba(0,0,0,0.18);

  --color-success: #1D9E75;

  --border-radius-md: 8px;
  --border-radius-lg: 12px;

  --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-background-primary: #1c1c1b;
    --color-background-secondary: #252523;
    --color-background-tertiary: #131312;
    --color-background-info: #0B2D52;

    --color-text-primary: #f0f0ec;
    --color-text-secondary: #a8a8a3;
    --color-text-info: #85B7EB;

    --color-border-tertiary: rgba(255,255,255,0.10);
    --color-border-secondary: rgba(255,255,255,0.20);
  }
}

/* --- Reset --- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-text-primary);
  background: var(--color-background-primary);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
h1, h2, h3, p, blockquote { margin: 0; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }

.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 28px;
}

/* --- Typography --- */
h1 {
  font-size: 40px;
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin-bottom: 18px;
}
h2 {
  font-size: 26px;
  font-weight: 500;
  margin-bottom: 28px;
  letter-spacing: -0.005em;
}
h3 {
  font-size: 16px;
  font-weight: 500;
  margin-bottom: 6px;
}
.eyebrow {
  font-size: 12px;
  color: var(--color-text-secondary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 10px;
  font-weight: 500;
}
.eyebrow-hero {
  color: var(--color-text-info);
  opacity: 0.7;
}
.lead {
  font-size: 16px;
  margin-bottom: 28px;
  line-height: 1.6;
  opacity: 0.85;
}

/* --- Sections --- */
.section { padding: 72px 0; }
.section-gray { background: var(--color-background-secondary); }
.section-info {
  background: var(--color-background-info);
  color: var(--color-text-info);
}
.section-info h2,
.section-info p { color: var(--color-text-info); }
.section-tight { padding-top: 0; }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 11px 18px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  border: 0.5px solid transparent;
  cursor: pointer;
  font-family: inherit;
  transition: opacity 0.15s, background 0.15s, color 0.15s, border-color 0.15s;
}
.btn i { font-size: 15px; }
.btn-primary {
  background: var(--color-text-primary);
  color: var(--color-background-primary);
}
.btn-primary:hover { opacity: 0.88; }
.btn-outline {
  background: transparent;
  color: var(--color-text-info);
  border-color: var(--color-text-info);
}
.btn-outline:hover {
  background: var(--color-text-info);
  color: var(--color-background-primary);
}
.btn-outline-soft {
  background: transparent;
  color: var(--color-text-primary);
  border-color: var(--color-border-secondary);
  align-self: flex-start;
}
.btn-outline-soft:hover { background: var(--color-background-secondary); }
.btn-full { width: 100%; }

/* --- Nav --- */
.nav {
  border-bottom: 0.5px solid var(--color-border-tertiary);
  background: var(--color-background-primary);
  position: sticky;
  top: 0;
  z-index: 10;
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 18px;
  padding-bottom: 18px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
  font-size: 15px;
}
.logo i {
  font-size: 24px;
  color: var(--color-text-info);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14px;
  color: var(--color-text-secondary);
}
.nav-links a:not(.btn):hover { color: var(--color-text-primary); }

/* --- Hero --- */
.hero {
  background: var(--color-background-info);
  padding: 88px 0;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 48px;
  align-items: center;
}
.hero h1 { color: var(--color-text-info); }
.hero .lead { color: var(--color-text-info); }
.hero-buttons {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.visit-card {
  background: var(--color-background-primary);
  border-radius: var(--border-radius-md);
  padding: 24px;
}
.visit-card .eyebrow {
  color: var(--color-text-secondary);
  margin-bottom: 16px;
}
.info-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  font-size: 13px;
}
.info-row i {
  font-size: 16px;
  color: var(--color-text-info);
  flex-shrink: 0;
}
.info-row:last-child { margin-bottom: 0; }
.break-word { word-break: break-all; }

/* --- Stats --- */
.stats {
  padding: 36px 0;
  border-bottom: 0.5px solid var(--color-border-tertiary);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.stat { text-align: center; }
.stat-num {
  font-size: 32px;
  font-weight: 500;
  color: var(--color-text-info);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  letter-spacing: -0.01em;
}
.stat-num i { font-size: 22px; }
.stat-label {
  font-size: 12px;
  color: var(--color-text-secondary);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-top: 6px;
}

/* --- Services --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.service-card {
  background: var(--color-background-info);
  padding: 24px;
  border-radius: var(--border-radius-md);
}
.service-card i {
  font-size: 26px;
  color: var(--color-text-info);
  display: block;
  margin-bottom: 14px;
}
.service-card h3 {
  color: var(--color-text-info);
  font-size: 15px;
  margin-bottom: 6px;
}
.service-card p {
  font-size: 13px;
  color: var(--color-text-info);
  opacity: 0.85;
  line-height: 1.5;
}

/* --- Tech --- */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.tech-card {
  background: var(--color-background-primary);
  padding: 18px;
  border-radius: var(--border-radius-md);
  border: 0.5px solid var(--color-border-tertiary);
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.tech-card > i {
  font-size: 24px;
  color: var(--color-text-info);
  flex-shrink: 0;
}
.tech-card h3 { font-size: 14px; margin-bottom: 4px; }
.tech-card p {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* --- Doctor --- */
.doctor-inner {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 20px;
  align-items: center;
}
.avatar {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  background: var(--color-background-info);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 500;
  font-size: 28px;
  color: var(--color-text-info);
}
.doctor-text h3 {
  font-size: 18px;
  margin-bottom: 8px;
}
.doctor-text p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* --- Testimonials --- */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.testimonial {
  margin: 0;
  padding: 24px;
  border: 0.5px solid var(--color-border-tertiary);
  border-radius: var(--border-radius-md);
}
.testimonial > i {
  font-size: 24px;
  color: var(--color-text-info);
  display: block;
  margin-bottom: 12px;
}
.testimonial p {
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 14px;
}
.testimonial cite {
  font-size: 13px;
  color: var(--color-text-secondary);
  font-style: normal;
}

/* --- Insurance --- */
.insurance-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.insurance-card {
  background: var(--color-background-secondary);
  padding: 18px;
  border-radius: var(--border-radius-md);
  text-align: center;
  font-size: 14px;
  font-weight: 500;
}
.note {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-top: 18px;
}
.note a {
  color: var(--color-text-info);
  text-decoration: underline;
}

/* --- FAQ --- */
details {
  border-bottom: 0.5px solid var(--color-border-tertiary);
  padding: 16px 0;
}
details:last-of-type { border-bottom: none; }
summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 15px;
  font-weight: 500;
}
summary::-webkit-details-marker { display: none; }
summary::after {
  content: '+';
  font-size: 22px;
  color: var(--color-text-secondary);
  font-weight: 400;
  line-height: 1;
}
details[open] summary::after { content: '−'; }
details > p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-top: 12px;
}

/* --- Map --- */
.map-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 24px;
  align-items: stretch;
}
.map-visual {
  border-radius: var(--border-radius-md);
  overflow: hidden;
  border: 0.5px solid var(--color-border-tertiary);
  min-height: 240px;
}
.map-visual svg { width: 100%; height: 100%; }
.map-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.map-text h3 { font-size: 16px; margin-bottom: 8px; }
.map-text > p {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
  line-height: 1.6;
}
.map-text .info-row {
  margin-bottom: 18px;
  color: var(--color-text-secondary);
}

/* --- Form --- */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 40px;
  align-items: center;
}
.form-text h2 { margin-bottom: 14px; }
.form-text p {
  opacity: 0.85;
  font-size: 14px;
}
.form-card,
.form-success {
  background: var(--color-background-primary);
  border-radius: var(--border-radius-md);
  padding: 28px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 14px;
}
.form-field { margin-bottom: 14px; }
.form-row .form-field { margin-bottom: 0; }
.form-field label {
  display: block;
  font-size: 12px;
  color: var(--color-text-secondary);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 6px;
  font-weight: 500;
}
input[type="text"],
input[type="email"],
input[type="date"] {
  width: 100%;
  height: 42px;
  padding: 0 12px;
  border: 0.5px solid var(--color-border-tertiary);
  border-radius: 6px;
  background: var(--color-background-primary);
  color: var(--color-text-primary);
  font-family: inherit;
  font-size: 14px;
  transition: border-color 0.15s, box-shadow 0.15s;
}
input:hover { border-color: var(--color-border-secondary); }
input:focus {
  outline: none;
  border-color: var(--color-text-info);
  box-shadow: 0 0 0 3px var(--color-background-info);
}
.form-success {
  text-align: center;
}
.form-success > i {
  font-size: 40px;
  color: var(--color-success);
  margin-bottom: 12px;
  display: block;
}
.form-success h3 { font-size: 18px; margin-bottom: 8px; color: var(--color-text-primary); }
.form-success p {
  font-size: 14px;
  color: var(--color-text-secondary);
}

/* --- Footer --- */
.footer {
  background: var(--color-background-primary);
  border-top: 0.5px solid var(--color-border-tertiary);
  padding: 22px 0;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--color-text-secondary);
  flex-wrap: wrap;
  gap: 12px;
}

/* --- Responsive --- */
@media (max-width: 760px) {
  h1 { font-size: 30px; }
  h2 { font-size: 22px; margin-bottom: 22px; }
  .section { padding: 56px 0; }
  .hero { padding: 64px 0; }
  .container { padding: 0 20px; }

  .nav-links { gap: 16px; }
  .nav-links a:not(.btn) { display: none; }

  .hero-inner,
  .form-grid,
  .map-grid,
  .services-grid,
  .tech-grid,
  .testimonials-grid {
    grid-template-columns: 1fr;
  }

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

  .form-row { grid-template-columns: 1fr; }

  .footer-inner { flex-direction: column; align-items: flex-start; gap: 4px; }
}