/* sec.az — shared stylesheet for static SEO pages.
 * Mirrors the design tokens of the main SPA landing (main3.css) so the
 * static HTML pages feel native to the rest of the site. */

:root {
  --s-bg: #f5fbf7;
  --s-bg-alt: #f0f9f3;
  --s-card: #ffffff;
  --s-text: #1f2937;
  --s-text-soft: #6b7280;
  --s-text-muted: #9ca3af;
  --s-primary: #25d366;
  --s-primary-dark: #1fb457;
  --s-primary-deep: #159947;
  --s-primary-soft: #e9fbf0;
  --s-primary-ultra-soft: #f0fff5;
  --s-border: #dfeee5;
  --s-border-soft: #e8f5ec;
  --s-success: #168a43;
  --s-shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
  --s-shadow: 0 8px 24px rgba(15, 23, 42, 0.06);
  --s-shadow-md: 0 12px 32px rgba(15, 23, 42, 0.08);
  --s-shadow-green: 0 12px 32px rgba(37, 211, 102, 0.15);
  --s-radius: 16px;
  --s-radius-sm: 12px;
  --s-radius-xs: 8px;
  --s-radius-full: 999px;
  --s-transition: 240ms cubic-bezier(0.2, 0.8, 0.2, 1);
  --s-container: min(1200px, calc(100% - 40px));
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--s-text);
  background: var(--s-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.s-container { width: var(--s-container); margin: 0 auto; }

a { color: var(--s-primary-deep); }

/* ── Navbar ── */
.s-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid var(--s-border-soft);
}
.s-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 16px;
}
.s-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--s-text);
}
.s-logo img { height: 36px; width: auto; object-fit: contain; }
.s-nav-links {
  display: flex;
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.s-nav-link {
  display: inline-flex;
  padding: 8px 16px;
  border-radius: var(--s-radius-xs);
  font-size: 14px;
  font-weight: 600;
  color: var(--s-text-soft);
  text-decoration: none;
  transition: all var(--s-transition);
}
.s-nav-link:hover,
.s-nav-link[aria-current="page"] {
  color: var(--s-primary-deep);
  background: var(--s-primary-ultra-soft);
}
.s-nav-actions { display: flex; gap: 10px; }
.s-nav-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding: 0 20px;
  border-radius: var(--s-radius-sm);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  transition: all var(--s-transition);
}
.s-nav-btn-ghost { background: transparent; color: var(--s-text); }
.s-nav-btn-ghost:hover { background: var(--s-primary-ultra-soft); color: var(--s-primary-deep); }
.s-nav-btn-primary {
  background: linear-gradient(135deg, var(--s-primary-deep), var(--s-primary));
  color: white;
  box-shadow: 0 4px 14px rgba(37, 211, 102, 0.25);
}
.s-nav-btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.35);
}

@media (max-width: 820px) {
  .s-nav-links { display: none; }
}

/* ── Hero header for each SEO page ── */
.s-hero {
  position: relative;
  padding: 72px 0 60px;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 20% 0%, rgba(37, 211, 102, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(21, 153, 71, 0.05) 0%, transparent 40%),
    linear-gradient(180deg, #f8fefa 0%, var(--s-bg) 100%);
  text-align: center;
}
.s-hero-inner { position: relative; z-index: 2; }
.s-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--s-primary-soft);
  color: var(--s-success);
  padding: 8px 16px;
  border-radius: var(--s-radius-full);
  font-size: 13px;
  font-weight: 700;
  border: 1px solid var(--s-border);
  letter-spacing: 0.02em;
  margin-bottom: 18px;
}
.s-badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--s-primary);
}
.s-hero h1 {
  margin: 0;
  font-size: clamp(32px, 4.5vw, 52px);
  line-height: 1.08;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #0f172a;
}
.s-hero h1 em {
  font-style: normal;
  background: linear-gradient(135deg, var(--s-primary-deep), var(--s-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.s-hero p {
  max-width: 680px;
  margin: 18px auto 0;
  font-size: 17px;
  color: var(--s-text-soft);
  line-height: 1.65;
}
.s-crumbs {
  font-size: 13px;
  color: var(--s-text-muted);
  margin-bottom: 14px;
}
.s-crumbs a { color: var(--s-text-soft); text-decoration: none; }
.s-crumbs a:hover { color: var(--s-primary-deep); }

/* ── Content blocks ── */
main.s-main { padding: 40px 0 80px; }

.s-section { padding: 24px 0 8px; }

.s-card {
  background: var(--s-card);
  border: 1px solid var(--s-border-soft);
  border-radius: var(--s-radius);
  box-shadow: var(--s-shadow-sm);
  padding: 32px;
  margin-bottom: 20px;
}

h2 {
  margin: 0 0 14px;
  font-size: clamp(22px, 2.6vw, 28px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: #0f172a;
}
h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  color: var(--s-text);
}

p { margin: 0 0 12px; color: var(--s-text-soft); }
p strong { color: var(--s-text); }

ul.s-list { padding-left: 22px; margin: 8px 0 12px; }
ul.s-list li { margin: 6px 0; color: var(--s-text-soft); }
ul.s-list li strong { color: var(--s-text); }

.s-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin: 16px 0;
}

.s-tile {
  background: var(--s-card);
  border: 1px solid var(--s-border-soft);
  border-radius: var(--s-radius-sm);
  padding: 22px;
  transition: all var(--s-transition);
  text-decoration: none;
  color: inherit;
  display: block;
}
.s-tile:hover {
  transform: translateY(-2px);
  border-color: var(--s-primary);
  box-shadow: var(--s-shadow-green);
}
.s-tile h3 { color: var(--s-primary-deep); }
.s-tile p { font-size: 14px; margin-bottom: 0; }

.s-pill {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--s-radius-full);
  background: var(--s-primary-soft);
  color: var(--s-success);
  font-size: 12px;
  font-weight: 700;
  margin-top: 10px;
}

/* ── Tables ── */
.s-table-wrap { overflow-x: auto; margin: 14px 0; }
table.s-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  min-width: 560px;
}
table.s-table th,
table.s-table td {
  text-align: left;
  padding: 14px 16px;
  border-bottom: 1px solid var(--s-border-soft);
}
table.s-table th {
  background: var(--s-primary-ultra-soft);
  font-weight: 700;
  color: var(--s-text);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
table.s-table tr:hover td { background: var(--s-primary-ultra-soft); }
table.s-table td.s-score {
  font-weight: 800;
  color: var(--s-primary-deep);
  font-variant-numeric: tabular-nums;
}

/* ── Buttons ── */
.s-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 50px;
  padding: 0 26px;
  border-radius: var(--s-radius-sm);
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all var(--s-transition);
  font-family: inherit;
}
.s-btn-primary {
  background: linear-gradient(135deg, var(--s-primary-deep), var(--s-primary));
  color: white;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.25);
}
.s-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(37, 211, 102, 0.35);
}
.s-btn-outline {
  background: white;
  color: var(--s-text);
  border: 1.5px solid var(--s-border);
}
.s-btn-outline:hover {
  border-color: var(--s-primary);
  color: var(--s-primary-deep);
  background: var(--s-primary-ultra-soft);
}

/* ── FAQ / accordion ── */
.s-faq details {
  border-top: 1px solid var(--s-border-soft);
  padding: 18px 0;
}
.s-faq details:last-child { border-bottom: 1px solid var(--s-border-soft); }
.s-faq summary {
  cursor: pointer;
  font-weight: 700;
  font-size: 16px;
  color: var(--s-text);
  list-style: none;
  position: relative;
  padding-right: 32px;
}
.s-faq summary::-webkit-details-marker { display: none; }
.s-faq summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: -2px;
  font-size: 22px;
  color: var(--s-primary-deep);
  transition: transform var(--s-transition);
}
.s-faq details[open] summary { color: var(--s-primary-deep); }
.s-faq details[open] summary::after { content: "−"; }
.s-faq details p {
  margin: 12px 0 0;
  color: var(--s-text-soft);
  line-height: 1.7;
}

/* ── Stats row ── */
.s-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 14px;
  margin: 22px 0;
}
.s-stat {
  background: var(--s-primary-ultra-soft);
  border: 1px solid var(--s-border-soft);
  padding: 20px;
  border-radius: var(--s-radius-sm);
  text-align: center;
}
.s-stat b {
  display: block;
  font-size: 26px;
  font-weight: 800;
  color: var(--s-primary-deep);
  letter-spacing: -0.02em;
}
.s-stat span { font-size: 13px; color: var(--s-text-soft); }

/* ── Note callout ── */
.s-note {
  background: #fffdf0;
  border-left: 4px solid #f59e0b;
  padding: 16px 18px;
  border-radius: var(--s-radius-xs);
  margin: 18px 0;
  font-size: 14px;
  color: #78350f;
}
.s-note strong { color: #713f12; }

/* ── University row block ── */
.s-uni {
  border: 1px solid var(--s-border-soft);
  border-radius: var(--s-radius-sm);
  padding: 20px 22px;
  margin-bottom: 12px;
  background: white;
  transition: all var(--s-transition);
}
.s-uni:hover { border-color: var(--s-primary); box-shadow: var(--s-shadow-sm); }
.s-uni h3 { color: var(--s-primary-deep); margin-bottom: 4px; }
.s-uni-meta {
  color: var(--s-text-muted);
  font-size: 13px;
  margin: 4px 0 10px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.s-uni-meta span { display: inline-flex; align-items: center; gap: 4px; }
.s-uni p { font-size: 14px; margin: 0; }

/* ── Contact form ── */
form.s-form { display: grid; gap: 14px; margin-top: 14px; }
form.s-form label { font-weight: 700; font-size: 14px; color: var(--s-text); }
form.s-form input,
form.s-form textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1.5px solid var(--s-border);
  border-radius: var(--s-radius-sm);
  font: inherit;
  color: var(--s-text);
  background: white;
  outline: none;
  transition: all var(--s-transition);
}
form.s-form input:focus,
form.s-form textarea:focus {
  border-color: var(--s-primary);
  box-shadow: 0 0 0 4px rgba(37, 211, 102, 0.12);
}
form.s-form button {
  justify-self: start;
  height: 50px;
  padding: 0 26px;
  border: none;
  border-radius: var(--s-radius-sm);
  background: linear-gradient(135deg, var(--s-primary-deep), var(--s-primary));
  color: white;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.25);
  transition: all var(--s-transition);
}
form.s-form button:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(37, 211, 102, 0.35);
}
.s-channels {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  margin: 18px 0;
}
.s-channel {
  background: var(--s-primary-ultra-soft);
  border: 1px solid var(--s-border-soft);
  border-radius: var(--s-radius-sm);
  padding: 18px 20px;
}
.s-channel b {
  display: block;
  color: var(--s-primary-deep);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 6px;
}
.s-channel a { color: var(--s-text); text-decoration: none; font-weight: 600; }
.s-channel a:hover { color: var(--s-primary-deep); }

/* ── Blog grid ── */
.s-posts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
  margin-top: 14px;
}
.s-post {
  background: white;
  border: 1px solid var(--s-border-soft);
  border-radius: var(--s-radius-sm);
  padding: 22px;
  transition: all var(--s-transition);
}
.s-post:hover {
  transform: translateY(-2px);
  border-color: var(--s-primary);
  box-shadow: var(--s-shadow-green);
}
.s-post h3 a {
  color: var(--s-text);
  text-decoration: none;
  transition: color var(--s-transition);
}
.s-post h3 a:hover { color: var(--s-primary-deep); }
.s-post p { font-size: 14px; margin: 6px 0 10px; }
.s-post-meta {
  font-size: 12px;
  color: var(--s-text-muted);
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}
.s-post-meta .s-tag {
  background: var(--s-primary-soft);
  color: var(--s-success);
  padding: 3px 10px;
  border-radius: var(--s-radius-full);
  font-weight: 700;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.s-post.s-soon { opacity: 0.55; }

/* ── Footer ── */
footer.s-footer {
  background: white;
  border-top: 1px solid var(--s-border-soft);
  padding: 40px 0 32px;
  margin-top: 40px;
  color: var(--s-text-soft);
  font-size: 14px;
}
.s-footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--s-border-soft);
}
.s-footer-top h4 {
  margin: 0 0 10px;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--s-text);
  font-weight: 800;
}
.s-footer-top ul { list-style: none; padding: 0; margin: 0; }
.s-footer-top li { margin-bottom: 8px; }
.s-footer-top a { color: var(--s-text-soft); text-decoration: none; }
.s-footer-top a:hover { color: var(--s-primary-deep); }
.s-footer-brand img { height: 40px; }
.s-footer-brand p { margin: 12px 0 0; font-size: 13px; max-width: 260px; }
.s-footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 22px;
  font-size: 13px;
  color: var(--s-text-muted);
  flex-wrap: wrap;
  gap: 12px;
}
.s-footer-legal a {
  color: var(--s-text-muted);
  text-decoration: none;
  margin-left: 14px;
}
.s-footer-legal a:hover { color: var(--s-primary-deep); }

@media (max-width: 820px) {
  .s-footer-top { grid-template-columns: 1fr 1fr; }
  .s-card { padding: 22px; }
  .s-hero { padding: 56px 0 44px; }
}
@media (max-width: 520px) {
  .s-footer-top { grid-template-columns: 1fr; }
  .s-nav-actions .s-nav-btn-ghost { display: none; }
}