/* ==========================================================================
   OJAR UI — Architectural 12-Column Grid, Header, Drawer & Footer (layout.css)
   100% Mobile Responsive & Zero Overflow
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--space-md);
}

.col-12 { grid-column: span 12; }
.col-8  { grid-column: span 8; }
.col-7  { grid-column: span 7; }
.col-6  { grid-column: span 6; }
.col-5  { grid-column: span 5; }
.col-4  { grid-column: span 4; }
.col-3  { grid-column: span 3; }

@media (max-width: 960px) {
  .grid-12 {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }
  .col-12, .col-8, .col-7, .col-6, .col-5, .col-4, .col-3 {
    grid-column: 1 / -1;
  }
}

.hairline-top    { border-top: 1px solid var(--border-subtle); }
.hairline-bottom { border-bottom: 1px solid var(--border-subtle); }
.hairline-left   { border-left: 1px solid var(--border-subtle); }
.hairline-right  { border-right: 1px solid var(--border-subtle); }

.section-pad {
  padding-block: var(--space-xl);
}

.section-pad-sm {
  padding-block: var(--space-lg);
}

/* ==========================================================================
   TOP TELEMETRY & ANNOUNCEMENT BAR
   ========================================================================== */

.telemetry-bar {
  background-color: var(--bg-elevated);
  border-bottom: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: var(--step--2);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding-block: 0.55rem;
}

.telemetry-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.65rem 1rem;
  flex-wrap: wrap;
}

.telemetry-pulse {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--accent-primary);
  font-weight: 500;
}

.pulse-dot {
  width: 7px;
  height: 7px;
  background-color: var(--accent-primary);
  display: inline-block;
  flex-shrink: 0;
}

.telemetry-link {
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border-bottom: 1px solid var(--accent-primary);
  padding-bottom: 1px;
}

.telemetry-link:hover {
  color: var(--accent-primary);
}

@media (max-width: 640px) {
  .telemetry-bar {
    font-size: 0.66rem;
    padding-block: 0.45rem;
  }
  .telemetry-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.3rem;
  }
}

/* ==========================================================================
   ARCHITECTURAL HEADER & NAVIGATION
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background-color: rgba(17, 17, 16, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-subtle);
}

.header-inner {
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  min-height: 68px;
  gap: 0.5rem;
}

.brand-block {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding-right: var(--space-md);
  border-right: 1px solid var(--border-subtle);
  flex-shrink: 0;
}

.brand-mark {
  width: 34px;
  height: 34px;
  background-color: var(--accent-primary);
  color: var(--text-inverse);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.92rem;
  letter-spacing: -0.04em;
  flex-shrink: 0;
}

.brand-text-wrap {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -0.03em;
  line-height: 1;
}

.brand-tag {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  margin-top: 0.2rem;
}

.desktop-nav {
  display: flex;
  align-items: stretch;
  margin-right: auto;
  overflow-x: auto;
}

.nav-item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding-inline: 1rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-secondary);
  border-right: 1px solid var(--border-subtle);
  white-space: nowrap;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.nav-item .nav-idx {
  color: var(--text-muted);
  font-size: 0.65rem;
}

.nav-item:hover,
.nav-item.is-active {
  color: var(--text-primary);
  background-color: var(--bg-elevated);
}

.nav-item.is-active .nav-idx {
  color: var(--accent-primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding-left: 0.75rem;
  flex-shrink: 0;
}

.mobile-menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.55rem 0.9rem;
  margin-block: auto;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--border-mid);
  background-color: var(--bg-elevated);
  color: var(--text-primary);
  cursor: pointer;
  min-height: 44px;
  flex-shrink: 0;
}

@media (max-width: 1120px) {
  .desktop-nav,
  .header-actions {
    display: none !important;
  }
  .brand-block {
    border-right: none;
    padding-right: 0;
  }
  .mobile-menu-toggle {
    display: inline-flex;
  }
}

/* ==========================================================================
   CURTAIN MOBILE NAVIGATION DRAWER (ZERO OVERFLOW WHEN CLOSED)
   ========================================================================== */

.mobile-drawer {
  position: fixed;
  top: 68px;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--bg-primary);
  z-index: 190;
  padding: var(--space-md) var(--gutter) 2.5rem;
  display: none;
  flex-direction: column;
  justify-content: space-between;
  border-top: 1px solid var(--border-subtle);
  overflow-y: auto;
}

.mobile-drawer.is-open {
  display: flex;
}

.drawer-nav-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--border-subtle);
}

.drawer-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 1rem;
  border-bottom: 1px solid var(--border-subtle);
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 4vw, 1.4rem);
  font-weight: 600;
}

.drawer-nav-link span.mono {
  font-size: 0.78rem;
  color: var(--accent-primary);
}

/* ==========================================================================
   EDITORIAL & TECHNICAL FOOTER
   ========================================================================== */

.site-footer {
  background-color: var(--bg-elevated);
  border-top: 1px solid var(--border-subtle);
  margin-top: var(--space-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 5fr 3fr 4fr;
  border-bottom: 1px solid var(--border-subtle);
}

.footer-col {
  padding: var(--space-lg) var(--gutter);
  border-right: 1px solid var(--border-subtle);
}

.footer-col:last-child {
  border-right: none;
}

@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-col {
    padding-inline: 0 !important;
    border-right: none;
    border-bottom: 1px solid var(--border-subtle);
  }
  .footer-col:last-child {
    border-bottom: none;
  }
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-top: 1rem;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.92rem;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  transition: color 0.2s ease, transform 0.2s ease;
}

.footer-links a:hover {
  color: var(--accent-primary);
  transform: translateX(4px);
}

.footer-bottom {
  padding-block: 1.4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
}