/* MCVI — Monica Chaudhry Vision Institute
   Static site stylesheet */

:root {
  --color-primary:       #f07630;
  --color-primary-dark:  #d46520;
  --color-primary-light: #f9f4f4;
  --color-text-dark:     #222222;
  --color-text-body:     #444444;
  --color-text-muted:    #606060;
  --color-text-white:    #ffffff;
  --color-bg:            #ffffff;
  --color-bg-light:      #f4f4f4;
  --color-bg-alt:        #fafafa;
  --color-link:          #3366FF;
  --color-link-hover:    #0037DD;
  --color-border:        #e5e5e5;
  --font-body:           -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --max-width:           1100px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text-body);
  background: var(--color-bg);
}

/* Typography */
h1, h2, h3, h4 { color: var(--color-text-dark); line-height: 1.3; }
h1 { font-size: 2.4rem; }
h2 { font-size: 1.8rem; margin-bottom: 1rem; }
h3 { font-size: 1.3rem; margin-bottom: 0.5rem; }
a { color: var(--color-link); text-decoration: none; }
a:hover { color: var(--color-link-hover); }

/* Layout */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 1.5rem; }
.section { padding: 4rem 0; }
.section-light { background: var(--color-bg-light); }
.section-alt { background: var(--color-bg-alt); }

/* Header / Navigation */
.site-header {
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  max-width: var(--max-width);
  margin: 0 auto;
}
.navbar .logo {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
}
.navbar .logo span { color: var(--color-text-dark); }
.nav-links { display: flex; gap: 2rem; list-style: none; }
.nav-links a {
  color: var(--color-text-body);
  font-weight: 500;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.nav-links a:hover,
.nav-links a.active { color: var(--color-primary); }

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-bg) 100%);
  padding: 5rem 0;
  text-align: center;
}
.hero h1 { color: var(--color-primary); font-size: 2.8rem; margin-bottom: 0.5rem; }
.hero .subtitle { font-size: 1.2rem; color: var(--color-text-muted); max-width: 600px; margin: 0 auto 2rem; }

/* Stats row */
.stats {
  display: flex;
  justify-content: center;
  gap: 3rem;
  flex-wrap: wrap;
  margin-top: 2rem;
}
.stat { text-align: center; }
.stat-number {
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
}
.stat-label {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 0.3rem;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.75rem 2rem;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: background 0.2s;
}
.btn-primary { background: var(--color-primary); color: var(--color-text-white); }
.btn-primary:hover { background: var(--color-primary-dark); color: var(--color-text-white); }
.btn-outline {
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
  background: transparent;
}
.btn-outline:hover { background: var(--color-primary); color: var(--color-text-white); }

/* Specialities grid */
.specialities-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}
.speciality-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 1.5rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.speciality-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 2px 12px rgba(240, 118, 48, 0.1);
}
.speciality-card h3 { color: var(--color-primary); }
.speciality-card p { font-size: 0.95rem; color: var(--color-text-muted); margin-top: 0.5rem; }

/* Speciality detail sections */
.speciality-detail {
  padding: 3rem 0;
  border-bottom: 1px solid var(--color-border);
}
.speciality-detail:last-child { border-bottom: none; }
.speciality-detail img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin: 1.5rem 0;
}
.speciality-detail .highlight {
  color: var(--color-primary);
  font-weight: 600;
}

/* About page */
.profile-card {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
  flex-wrap: wrap;
}
.profile-card img {
  width: 250px;
  height: auto;
  border-radius: 8px;
}
.profile-card .info { flex: 1; min-width: 280px; }
.credential-list {
  list-style: none;
  margin-top: 1rem;
}
.credential-list li {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--color-border);
}
.credential-list li::before {
  content: "✓ ";
  color: var(--color-primary);
  font-weight: 700;
}

/* Contact page */
.contact-info {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}
.contact-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 1.5rem;
  text-align: center;
}
.contact-card .icon {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}
.contact-card h3 { color: var(--color-primary); }

/* Page header (for subpages) */
.page-header {
  background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-bg) 100%);
  padding: 3rem 0;
  text-align: center;
}
.page-header h1 { color: var(--color-primary); }

/* Footer */
.site-footer {
  background: var(--color-text-dark);
  color: var(--color-text-white);
  padding: 2rem 0;
  text-align: center;
  font-size: 0.9rem;
}
.site-footer a { color: var(--color-primary); }

/* Utility */
.text-center { text-align: center; }
.text-primary { color: var(--color-primary); }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }

/* Responsive */
@media (max-width: 768px) {
  .navbar { flex-direction: column; gap: 0.5rem; }
  .nav-links { gap: 1rem; flex-wrap: wrap; justify-content: center; }
  .hero h1 { font-size: 2rem; }
  .stats { gap: 1.5rem; }
  .stat-number { font-size: 2.2rem; }
  .profile-card { flex-direction: column; align-items: center; text-align: center; }
  .profile-card img { width: 200px; }
}