/* ============================
   Dr. Bobur Turaev — Design System
   Iteration 1 — static prototype
   ============================ */

:root {
  --color-primary: #0B4F8A;
  --color-primary-dark: #083D6B;
  --color-primary-light: #EAF2FB;
  --color-accent: #2E8FC7;
  --color-text: #1A2233;
  --color-text-muted: #5A6472;
  --color-bg: #FFFFFF;
  --color-bg-alt: #F7FAFC;
  --color-border: #E3E9F0;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;

  --shadow-sm: 0 2px 8px rgba(11, 79, 138, 0.06);
  --shadow-md: 0 8px 24px rgba(11, 79, 138, 0.10);

  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --max-width: 1160px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  line-height: 1.25;
  margin: 0 0 0.5em 0;
  font-weight: 700;
}

h1 { font-size: clamp(2rem, 4vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
h3 { font-size: 1.25rem; }

p { margin: 0 0 1em 0; color: var(--color-text-muted); }

a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-accent); }

img { max-width: 100%; display: block; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 72px 0;
}

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

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 48px auto;
}

.section-header .eyebrow {
  display: inline-block;
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

/* ---------- Header / Nav ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.nav-wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  color: var(--color-text);
  font-size: 1.05rem;
}

.brand .brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
}

.brand small {
  display: block;
  color: var(--color-text-muted);
  font-weight: 400;
  font-size: 0.75rem;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 1px;
  flex-wrap: wrap;
}

.main-nav a {
  color: var(--color-text);
  font-size: 0.8rem;
  font-weight: 500;
  padding: 8px 6px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.main-nav a:hover { background: var(--color-primary-light); color: var(--color-primary); }
.main-nav a.active { color: var(--color-primary); background: var(--color-primary-light); }

.lang-switch {
  display: flex;
  gap: 4px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 3px;
}

.lang-switch a {
  border: none;
  background: transparent;
  font-family: inherit;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-text-muted);
  padding: 5px 9px;
  border-radius: 6px;
  cursor: pointer;
  text-decoration: none;
  line-height: 1.4;
}

.lang-switch a.active {
  background: var(--color-primary);
  color: #fff;
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: #fff;
  cursor: pointer;
  font-size: 1.1rem;
  flex-shrink: 0;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
}
.btn-primary:hover { background: var(--color-primary-dark); color: #fff; }

.btn-outline {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-text);
}
.btn-outline:hover { border-color: var(--color-primary); color: var(--color-primary); }

/* ---------- Hero ---------- */

.hero {
  padding: 80px 0 60px 0;
  background: linear-gradient(180deg, var(--color-primary-light) 0%, #ffffff 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}

.hero .eyebrow {
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 14px;
  display: block;
}

.hero p.lead {
  font-size: 1.1rem;
  max-width: 46ch;
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 28px;
  flex-wrap: wrap;
}

.portrait-placeholder {
  aspect-ratio: 4 / 5;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 3.5rem;
  font-weight: 700;
  box-shadow: var(--shadow-md);
}

/* ---------- Cards ---------- */

.grid {
  display: grid;
  gap: 24px;
}

.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 26px;
  box-shadow: var(--shadow-sm);
}

.card .tag {
  display: inline-block;
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 12px;
}

.card h3 { margin-bottom: 8px; }

.card-image {
  border-radius: var(--radius-sm);
  height: 160px;
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.85rem;
  margin-bottom: 16px;
}

.card .meta {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  margin-top: 12px;
}

/* ---------- Timeline (About page) ---------- */

.timeline {
  border-left: 2px solid var(--color-border);
  margin-left: 8px;
  padding-left: 32px;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.timeline-item { position: relative; }

.timeline-item::before {
  content: "";
  position: absolute;
  left: -40px;
  top: 4px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 3px solid var(--color-primary-light);
}

.timeline-item .year {
  color: var(--color-primary);
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 4px;
}

/* ---------- Page header (inner pages) ---------- */

.page-header {
  padding: 56px 0 40px 0;
  background: var(--color-primary-light);
  text-align: center;
}

.page-header .eyebrow {
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ---------- FAQ ---------- */

.faq-item {
  border-bottom: 1px solid var(--color-border);
  padding: 20px 0;
}

.faq-item h3 { margin-bottom: 8px; color: var(--color-primary-dark); }

/* ---------- Contact ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.contact-method {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.contact-method .icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  flex-shrink: 0;
}

.form-field {
  margin-bottom: 16px;
}

.form-field label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.form-field input,
.form-field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.95rem;
}

.map-placeholder {
  height: 220px;
  border-radius: var(--radius-md);
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  margin-top: 24px;
}

/* ---------- Quote / Testimonial ---------- */

.quote-card {
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

.quote-card blockquote {
  font-size: 1.3rem;
  font-weight: 500;
  color: var(--color-text);
  margin: 0 0 20px 0;
}

/* ---------- Footer ---------- */

.site-footer {
  background: #0F1B2D;
  color: #B9C4D3;
  padding: 56px 0 28px 0;
  margin-top: 80px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 40px;
}

.site-footer h4 {
  color: #fff;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 16px;
}

.site-footer a { color: #B9C4D3; display: block; margin-bottom: 8px; font-size: 0.92rem; }
.site-footer a:hover { color: #fff; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.82rem;
  color: #7C8AA0;
}

/* ---------- Placeholder banner ---------- */

.build-note {
  background: #FFF7E6;
  border: 1px solid #F3D999;
  color: #7A5A00;
  font-size: 0.85rem;
  text-align: center;
  padding: 10px 16px;
}

/* ---------- Responsive ---------- */

@media (max-width: 1180px) {
  .brand small { display: none; }
  .brand { font-size: 0.95rem; gap: 8px; }
  .lang-switch a { padding: 4px 6px; font-size: 0.72rem; }
}

@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-grid .hero-image { order: -1; max-width: 280px; margin: 0 auto; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .nav-wrap { padding: 12px 16px; gap: 10px; }
  .brand { font-size: 0.9rem; gap: 8px; }
  .brand .brand-mark { width: 32px; height: 32px; font-size: 0.75rem; }
  .brand small { font-size: 0.68rem; }
  .lang-switch a { padding: 5px 7px; font-size: 0.72rem; }
  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    align-items: stretch;
    padding: 8px 24px 20px 24px;
    gap: 2px;
  }
  .main-nav.open { display: flex; }
  .nav-toggle { display: inline-flex; }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .section { padding: 48px 0; }
}