:root {
  --orange:        #fb923c;
  --orange-glow:   rgba(251, 146, 60, 0.15);
  --orange-border: rgba(251, 146, 60, 0.35);
  --bg:            #0e0e10;
  --surface:       #18181b;
  --surface-hover: #222226;
  --border:        #27272a;
  --text:          #e4e4e7;
  --text-muted:    #71717a;
}

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

html {
  overflow-x: hidden;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  height: 100dvh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* Subtle dot-grid background */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: radial-gradient(circle, rgba(251,146,60,0.07) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
  z-index: 0;
}

/* ── HEADER ───────────────────────────────────── */
.site-header {
  background: #000;
  border-bottom: 3px solid var(--orange);
  position: relative;
  z-index: 10;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 1.75rem;
  min-height: 68px;
  gap: 1rem;
}

.school-identity {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-width: 0;
}

.school-code {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--orange);
  letter-spacing: 0.04em;
  line-height: 1;
  flex-shrink: 0;
}

.school-divider {
  width: 1px;
  height: 2.25rem;
  background: #333;
  flex-shrink: 0;
}

.school-meta {
  min-width: 0;
}

.school-district {
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.15rem;
}

.school-fullname {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.02em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ── NAV TABS ─────────────────────────────────── */
.nav-tabs {
  display: flex;
  align-items: center;
  gap: 0.2rem;
  flex-shrink: 0;
}

.nav-tab {
  display: block;
  padding: 0.3rem 0.6rem;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  border-radius: 5px;
  text-decoration: none;
  border: 1px solid transparent;
  transition: color 0.15s, background 0.15s, border-color 0.15s;
}

.nav-tab:hover {
  color: #fff;
  background: rgba(255,255,255,0.06);
}

.nav-tab.active {
  color: var(--orange);
  border-color: var(--orange-border);
  background: var(--orange-glow);
}

/* ── MAIN CONTENT ─────────────────────────────── */
main {
  flex: 1;
  position: relative;
  z-index: 1;
  padding: 2rem 1.75rem;
  overflow-y: auto;
  overflow-x: hidden;
}

.content-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  column-gap: 1rem;
  row-gap: 1.25rem;
  max-width: 1300px;
  margin: 0 auto;
}

.col-wrapper {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* ── RESOURCE CARDS ───────────────────────────── */
.resource-link {
  display: flex;
  align-items: center;
  width: 100%;
  gap: 0.75rem;
  padding: 0.875rem 1.1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  position: relative;
  overflow: hidden;
  transition: background 0.18s, border-color 0.18s, transform 0.18s, box-shadow 0.18s;
  animation: fadeUp 0.35s ease both;
  margin-bottom: 5px;
}

.resource-link::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--orange);
  border-radius: 10px 0 0 10px;
  transform: scaleY(0);
  transform-origin: center;
  transition: transform 0.2s ease;
}

.resource-link:hover {
  background: var(--surface-hover);
  border-color: var(--orange-border);
  transform: translateX(4px);
  box-shadow: -4px 0 20px var(--orange-glow), 0 4px 16px rgba(0,0,0,0.3);
}

.resource-link:hover::after {
  transform: scaleY(1);
}

.resource-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--orange);
  opacity: 0.4;
  flex-shrink: 0;
  transition: opacity 0.18s, transform 0.18s;
}

.resource-link:hover .resource-dot {
  opacity: 1;
  transform: scale(1.3);
}

.resource-name {
  flex: 1;
  min-width: 0;
}


@keyframes fadeUp {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── FOOTER ───────────────────────────────────── */
.site-footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  padding: 0.875rem 1.75rem;
  display: flex;
  justify-content: center;
}

.footer-ip {
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  font-variant-numeric: tabular-nums;
}

.footer-ip strong {
  color: var(--orange);
  font-weight: 600;
}

/* iPhone — single column */
@media (max-width: 767px) {
  .header-inner { padding: 0 1rem; min-height: 56px; }
  .school-code  { font-size: 1.8rem; }
  .school-divider, .school-meta { display: none; }
  .nav-tab { padding: 0.25rem 0.5rem; font-size: 0.85rem; }
  main { padding: 1rem; }
  .content-grid { grid-template-columns: 1fr; gap: 0.75rem; }
  .resource-link { font-size: 0.875rem; padding: 0.875rem 1.1rem; gap: 0.75rem; }
  .resource-dot  { width: 7px; height: 7px; }
}