/* ============================================================
   DayZir — Layout (container, header, nav, footer, sections)
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--sp-5);
}
.container-narrow {
  width: 100%;
  max-width: var(--container-narrow);
  margin-inline: auto;
  padding-inline: var(--sp-5);
}

.section { padding-block: var(--sp-9); }
.section-sm { padding-block: var(--sp-8); }
.section-divider { border-block-start: 1px solid var(--line); }

/* Section header pattern */
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--sp-5);
  margin-bottom: var(--sp-6);
  flex-wrap: wrap;
}
.section-kicker {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: var(--sp-2);
}
.section-title { margin: 0; }
.section-desc { color: var(--text-muted); max-width: 56ch; }

/* ============================================================
   Header
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  background: rgba(10, 10, 10, 0.92);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-block-end: 1px solid var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: var(--sp-5);
  height: 100%;
}

/* Brand */
.brand { display: inline-flex; align-items: center; gap: var(--sp-2); }
.brand-mark {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--text);
}
.brand-accent { color: var(--accent); }

/* Nav */
.nav { margin-inline-start: auto; }
.nav-list { display: flex; align-items: center; gap: var(--sp-1); }
.nav-link {
  display: inline-block;
  padding: 8px 12px;
  font-size: var(--fs-base);
  font-weight: 500;
  color: var(--text-muted);
  border-radius: var(--r-2);
  transition: color var(--dur-1) var(--ease), background-color var(--dur-1) var(--ease);
}
.nav-link:hover { color: var(--text); background: var(--bg-elev-2); }
.nav-link.is-active { color: var(--accent); }
.nav-link.is-active:hover { color: var(--accent-hover); }

/* Header actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}

/* Mobile toggle */
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-2);
  color: var(--text);
  padding: 0;
}
.nav-toggle:hover { border-color: var(--accent); color: var(--accent); }
.nav-toggle-bars { position: relative; display: inline-block; width: 22px; height: 16px; }
.nav-toggle-bars span {
  position: absolute; inset-inline: 0; height: 2px;
  background: currentColor; border-radius: 1px;
  transition: transform var(--dur-2) var(--ease), opacity var(--dur-2) var(--ease), top var(--dur-2) var(--ease);
}
.nav-toggle-bars span:nth-child(1) { top: 0; }
.nav-toggle-bars span:nth-child(2) { top: 7px; }
.nav-toggle-bars span:nth-child(3) { top: 14px; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(1) { top: 7px; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(3) { top: 7px; transform: rotate(-45deg); }

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  margin-top: var(--sp-9);
  border-block-start: 1px solid var(--line);
  background: var(--bg-elev);
  padding-block: var(--sp-8) var(--sp-5);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--sp-7);
  padding-block-end: var(--sp-7);
  border-block-end: 1px solid var(--line);
}
.footer-desc {
  color: var(--text-muted);
  margin-top: var(--sp-3);
  max-width: 34ch;
  font-size: var(--fs-sm);
  line-height: var(--lh-base);
}
.footer-title {
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--text);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--sp-4);
}
.footer-links { display: grid; gap: var(--sp-2); }
.footer-links a {
  color: var(--text-muted);
  font-size: var(--fs-sm);
  transition: color var(--dur-1) var(--ease);
}
.footer-links a:hover { color: var(--accent); }
.footer-links a.is-placeholder { color: var(--text-dim); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--sp-5);
  padding-top: var(--sp-5);
  flex-wrap: wrap;
}
.footer-note {
  color: var(--text-dim);
  font-size: var(--fs-xs);
  line-height: var(--lh-snug);
  max-width: 60ch;
  margin: 0;
}
.footer-copy {
  color: var(--text-dim);
  font-size: var(--fs-xs);
  font-family: var(--font-mono);
  margin: 0;
}

/* ============================================================
   Page hero (non-home pages)
   ============================================================ */
.page-hero {
  padding-block: var(--sp-8) var(--sp-7);
  border-block-end: 1px solid var(--line);
  background: var(--bg-elev);
}
.page-hero h1 { margin-bottom: var(--sp-3); }
.page-hero p { color: var(--text-muted); max-width: 62ch; margin: 0; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; }
}

@media (max-width: 900px) {
  .nav {
    position: fixed;
    inset-block: var(--header-h) 0;
    inset-inline: 0;
    background: var(--bg);
    border-block-start: 1px solid var(--line);
    padding: var(--sp-5) var(--sp-5) var(--sp-8);
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity var(--dur-2) var(--ease), transform var(--dur-2) var(--ease), visibility var(--dur-2);
    z-index: 40;
  }
  body.nav-open .nav {
    opacity: 1;
    visibility: visible;
    transform: none;
  }
  body.nav-open { overflow: hidden; }

  .nav-list { flex-direction: column; gap: 0; }
  .nav-link {
    display: block;
    padding: var(--sp-4) var(--sp-2);
    font-size: var(--fs-md);
    border-block-end: 1px solid var(--line);
    border-radius: 0;
    color: var(--text);
  }
  .nav-link:hover { background: transparent; color: var(--accent); }

  .nav-toggle { display: inline-flex; }
  .header-actions .btn { display: none; }
}

@media (max-width: 640px) {
  .section { padding-block: var(--sp-8); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--sp-6); }
  .footer-brand { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}