/* === Шнырь-стайл 2.0: тёмный минимализм + мобилка === */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  --bg: #0a0a0f;
  --bg-card: #14141c;
  --bg-nav: #0d0d14;
  --text: #e0e0e0;
  --text-muted: #8888a0;
  --accent: #00d4ff;
  --accent2: #7c3aed;
  --green: #00ff88;
  --border: #1e1e2e;
  --radius: 10px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color .2s;
}
a:hover {
  color: var(--green);
}

/* === Навигация === */
.navbar {
  background: var(--bg-nav);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}
.nav-inner {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 14px 20px;
}

.nav-links {
  display: flex;
  gap: 6px;
  list-style: none;
}
.nav-links a {
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: background .2s, color .2s;
}
.nav-links a:hover {
  background: rgba(255,255,255,.05);
  color: var(--text);
}
.nav-links a.active {
  background: rgba(0,212,255,.12);
  color: var(--accent);
}

/* Гамбургер */
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 10px;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 1.3rem;
  line-height: 1;
}

/* === Main === */
main {
  max-width: 960px;
  margin: 0 auto;
  padding: 40px 20px 60px;
}

h1 {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}
h2 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 6px;
}
h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.page-desc {
  color: var(--text-muted);
  margin-bottom: 28px;
  font-size: 0.95rem;
}

/* === Герой === */
.hero {
  text-align: center;
  padding: 50px 0 36px;
}
.hero h1 {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 4px;
}
.subtitle {
  color: var(--accent);
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: 14px;
}
.desc {
  color: var(--text-muted);
  max-width: 520px;
  margin: 0 auto 24px;
  font-size: 0.95rem;
}
.hero-links {
  display: flex;
  gap: 12px;
  justify-content: center;
}
.btn {
  display: inline-block;
  padding: 10px 24px;
  border-radius: 6px;
  background: var(--accent);
  color: #000;
  font-weight: 600;
  font-size: .9rem;
  transition: background .2s, transform .1s;
}
.btn:hover {
  background: var(--green);
  color: #000;
  transform: translateY(-1px);
}
.btn-outline {
  background: transparent;
  border: 1px solid var(--accent);
  color: var(--accent);
}
.btn-outline:hover {
  background: var(--accent);
  color: #000;
}

/* === Карточки на главной === */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 16px;
}
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  transition: border-color .2s, transform .2s;
}
.card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}
.card h3 {
  margin-bottom: 8px;
}
.card p {
  color: var(--text-muted);
  font-size: .9rem;
  margin-bottom: 12px;
}
.card a {
  font-size: .9rem;
}

/* === Расписание === */
.schedule-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
}
.day-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
}
.day-card h3 {
  color: var(--accent);
  margin-bottom: 12px;
  font-size: 1rem;
}
.day-card ul {
  list-style: none;
}
.day-card li {
  padding: 5px 0;
  font-size: .9rem;
  border-bottom: 1px solid rgba(255,255,255,.04);
}
.day-card li:last-child {
  border-bottom: none;
}
.time {
  color: var(--text-muted);
  margin-right: 10px;
  font-family: 'Inter', 'Courier New', monospace;
  font-size: .85rem;
}

/* === Материалы === */
.materials-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.material-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}
.material-item h3 {
  margin: 0;
  min-width: 200px;
}
.material-item p {
  color: var(--text-muted);
  font-size: .85rem;
}

/* === Домашние задания === */
.hw-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.hw-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 22px;
}
.hw-item h3 {
  margin-bottom: 2px;
}
.hw-date {
  color: var(--accent2);
  font-size: .85rem;
  margin-bottom: 6px;
  font-family: 'Inter', 'Courier New', monospace;
}
.hw-item p:last-child {
  color: var(--text-muted);
  font-size: .9rem;
}

/* === Блог === */
.post {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  margin-bottom: 12px;
}
.post-meta {
  color: var(--text-muted);
  font-size: .85rem;
  margin-bottom: 8px;
}
.post p {
  color: var(--text-muted);
  font-size: .9rem;
  margin-bottom: 10px;
}

/* === Контакты === */
.contacts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
  margin-top: 12px;
}
.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
}
.contact-card h3 {
  margin-bottom: 8px;
  color: var(--accent);
}
.contact-card p {
  color: var(--text-muted);
  font-size: .9rem;
}

/* === Футер === */
footer {
  text-align: center;
  padding: 24px 20px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: .85rem;
}

/* === Мобильная версия === */
@media (max-width: 768px) {
  .nav-inner {
    justify-content: space-between;
  }

  .nav-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-nav);
    border-bottom: 1px solid var(--border);
    padding: 10px;
    gap: 4px;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    padding: 10px 14px;
    font-size: 1rem;
  }

  main {
    padding: 24px 16px 40px;
  }

  h1 {
    font-size: 1.3rem;
  }

  .hero {
    padding: 32px 0 24px;
  }
  .hero h1 {
    font-size: 1.5rem;
  }
  .subtitle {
    font-size: 0.9rem;
  }
  .desc {
    font-size: 0.9rem;
  }

  .hero-links {
    flex-direction: column;
    align-items: center;
    gap: 8px;
  }
  .hero-links .btn {
    width: 100%;
    max-width: 260px;
    text-align: center;
  }

  .cards {
    grid-template-columns: 1fr;
  }

  .schedule-grid {
    grid-template-columns: 1fr;
  }

  .material-item {
    flex-direction: column;
    align-items: flex-start;
  }
  .material-item h3 {
    min-width: auto;
  }

  .contacts-grid {
    grid-template-columns: 1fr;
  }

  footer {
    font-size: 0.8rem;
    padding: 18px 16px;
  }
}