@import 'tokens.css';

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-5);
}

#app {
  flex: 1 0 auto;
  min-height: calc(100vh - var(--header-height) - 200px);
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: linear-gradient(180deg, rgba(250,250,250,.85), rgba(250,250,250,.55));
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border-bottom: 1px solid var(--color-border-light);
}

.app-header .container {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 26px;
  height: 100%;
}

.brand {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--color-text);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}
.brand:hover { text-decoration: none; color: var(--color-primary); }

.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.mobile-nav { display: none; }

.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: var(--space-2) var(--space-3);
  font-weight: 600;
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
}
.nav-link:hover, .nav-link.active {
  background: var(--color-surface);
  color: var(--color-primary);
  text-decoration: none;
}

.menu-toggle {
  display: none;
  margin-left: auto;
  background: transparent;
  border: 1px solid var(--color-border);
  padding: var(--space-2);
  border-radius: var(--radius-md);
}

.app-footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border-light);
  padding: var(--space-10) 0;
  margin-top: var(--space-12);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
}

.footer-col h4 {
  font-size: 1rem;
  margin-bottom: var(--space-4);
}

.footer-col a {
  display: block;
  color: var(--color-muted);
  margin-bottom: var(--space-2);
}
.footer-col a:hover { color: var(--color-primary); }

.footer-bottom {
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border-light);
  color: var(--color-muted);
  font-size: 0.95rem;
  text-align: center;
}

.grid {
  display: grid;
  gap: var(--space-6);
}
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-6 { grid-template-columns: repeat(6, 1fr); }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }

.section {
  padding: var(--space-12) 0;
}
.section-sm {
  padding: var(--space-8) 0;
}

.page-title {
  margin-bottom: var(--space-6);
}

@media (max-width: 768px) {
  html { font-size: 17px; }
  .container { padding: 0 var(--space-4); }

  .menu-toggle { display: inline-flex; }

  .main-nav {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border-light);
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-4);
    gap: var(--space-2);
    box-shadow: var(--shadow-md);
  }
  .main-nav.open { display: flex; }
  .nav-link { width: 100%; }

  .footer-grid { grid-template-columns: 1fr; gap: var(--space-6); }

  .grid-2, .grid-3, .grid-4, .grid-6 { grid-template-columns: 1fr; }
}