:root {
  --bg: #f5f7fb;
  --surface: #ffffff;
  --ink: #0d1b2a;
  --muted: #5d6b80;
  --line: #dbe3ef;
  --blue: #0a3a78;
  --gold: #be8e2f;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Segoe UI", Tahoma, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
}

.container {
  width: min(1200px, 92vw);
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
}

.nav-wrap {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  font-weight: 800;
  letter-spacing: 0.22rem;
  color: var(--blue);
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 1.1rem;
}

.nav-links a {
  color: #304765;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
}

.lang-btn {
  border: 1px solid #c6d3e7;
  background: #fff;
  color: var(--blue);
  border-radius: 999px;
  padding: 0.4rem 0.85rem;
  font-weight: 700;
  cursor: pointer;
}

.hero {
  background: linear-gradient(180deg, #ffffff 0%, #f2f6fc 100%);
  padding: clamp(1.5rem, 3vw, 2.5rem) 0 2.2rem;
  border-bottom: 1px solid var(--line);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 1.4rem;
  align-items: center;
}

.kicker {
  color: var(--blue);
  text-transform: uppercase;
  letter-spacing: 0.08rem;
  font-size: 0.85rem;
  font-weight: 700;
}

h1 {
  margin: 0.35rem 0 0.85rem;
  font-size: clamp(2rem, 5vw, 3.5rem);
  color: #0f2f58;
}

.lead {
  line-height: 1.9;
  color: var(--muted);
  max-width: 70ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  border-radius: 0.7rem;
  padding: 0.72rem 1rem;
  font-weight: 700;
}

.btn.primary {
  color: #fff;
  background: linear-gradient(120deg, var(--blue), #1e5caf);
}

.btn.ghost {
  color: var(--blue);
  border: 1px solid #c1d2eb;
  background: #fff;
}

.hero-visual img {
  width: 100%;
  max-width: 460px;
  border-radius: 1rem;
  border: 1px solid #d9e2ef;
  box-shadow: 0 24px 45px rgba(26, 50, 86, 0.15);
}

.president-note {
  padding: 1.1rem 0;
}

.president-note blockquote {
  margin: 0;
  padding: 1rem 1.2rem;
  border-inline-start: 4px solid var(--gold);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 0.7rem;
  color: #2f4665;
  line-height: 1.85;
}

.section {
  padding: 1.1rem 0 2.1rem;
}

.section-title {
  font-size: clamp(1.45rem, 2.5vw, 2.1rem);
  margin: 0 0 1.1rem;
  color: #122f57;
}

.achievement-grid,
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
}

.achievement-card,
.timeline-item,
.photo {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 0.9rem;
}

.achievement-card {
  padding: 1rem;
}

.achievement-card h3 {
  margin-top: 0;
  color: #0d3d76;
}

.achievement-card p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.75;
}

.timeline-list {
  display: grid;
  gap: 0.75rem;
}

.timeline-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 0.8rem;
  padding: 0.85rem 0.95rem;
}

.timeline-item span {
  font-weight: 800;
  color: var(--gold);
}

.timeline-item p {
  margin: 0;
  color: var(--muted);
}

.photo {
  margin: 0;
  overflow: hidden;
}

.photo img {
  display: block;
  width: 100%;
  height: 320px;
  object-fit: cover;
  transition: transform 0.45s ease;
}

.photo:hover img { transform: scale(1.04); }

.photo figcaption {
  padding: 0.75rem;
  color: #3f5574;
  font-size: 0.95rem;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: #fff;
  margin-top: 1rem;
}

.footer-wrap {
  padding: 1rem 0;
  color: #587090;
  text-align: center;
}

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
  .hero-visual img { max-width: 390px; }
}

@media (max-width: 700px) {
  .nav-links { display: none; }
  .timeline-item { grid-template-columns: 1fr; }
  .photo img { height: 260px; }
}