/* Y2K / early-2000s shell — keeps cyan palette (#00d4ff, #00f5ff, #0a0a0a) */

:root {
  --y2k-bg: #0a0a0a;
  --y2k-panel: #0f1117;
  --y2k-edge-hi: #3a3a42;
  --y2k-edge-lo: #050508;
  --y2k-accent: #00d4ff;
  --y2k-accent-bright: #00f5ff;
  --y2k-text: #d4d4d8;
  --y2k-muted: #71717a;
}

.doc-root {
  font-family: Tahoma, Verdana, "Segoe UI", sans-serif;
  font-size: 13px;
  color: var(--y2k-text);
  background: var(--y2k-bg);
  background-image:
    linear-gradient(0deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
  background-size: 24px 24px;
}

/* Boxed document-flow shell (scrolls as one unit) */
.doc-flow-wrap {
  display: flex;
  max-width: 1060px;
  min-height: calc(100vh - 2.5rem);
  margin: 1.25rem auto 2rem;
  border: 2px solid var(--y2k-edge-hi);
  border-top-color: #4a4a55;
  border-left-color: #4a4a55;
  background: linear-gradient(180deg, #0d0f16 0%, #05070f 100%);
  box-shadow:
    inset 1px 1px 0 rgba(255, 255, 255, 0.06),
    4px 4px 0 rgba(0, 0, 0, 0.85),
    0 0 48px rgba(0, 212, 255, 0.06);
}

.side-panel {
  position: relative;
  top: auto;
  left: auto;
  width: 13.5rem;
  height: auto;
  min-height: 100%;
  flex-shrink: 0;
  background: linear-gradient(180deg, #12141c 0%, #0a0c12 100%);
  border-right: 2px groove var(--y2k-edge-lo);
  box-shadow: inset -1px 0 0 rgba(0, 212, 255, 0.08);
}

.canvas-stage {
  margin-left: 0;
  margin-right: 0;
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.head-band {
  position: relative;
  top: auto;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 1rem;
  background: linear-gradient(180deg, #1a1c24 0%, #10121a 45%, #0c0e14 100%);
  border-bottom: 2px groove var(--y2k-edge-lo);
  box-shadow: inset 0 1px 0 rgba(0, 245, 255, 0.12);
}

.head-band__tag {
  margin-left: auto;
  padding: 0.2rem 0.55rem;
  font-family: Verdana, Tahoma, sans-serif;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--y2k-accent);
  background: #0a0a0a;
  border: 1px solid rgba(0, 212, 255, 0.35);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.mark-cluster {
  border-bottom: none;
}
.mark-cluster--side {
  padding: 1rem 0.85rem;
  border-bottom: 2px groove var(--y2k-edge-lo);
  background: linear-gradient(180deg, rgba(0, 212, 255, 0.08), transparent);
}
.mark-cluster:hover { background: rgba(0, 212, 255, 0.06); }

.mark-icon {
  filter: none;
  border: none;
  background: transparent;
}

.mark-name {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.05rem;
  font-weight: 700;
  color: #fafafa;
  text-shadow: 1px 1px 0 #000;
}

.side-menu {
  padding: 0.75rem 0.5rem;
}

.side-link {
  border-radius: 2px;
  border-left: 3px solid transparent;
  font-family: Tahoma, Verdana, sans-serif;
  font-size: 12px;
  color: var(--y2k-muted);
}
.side-link::after { display: none; }
.side-link:hover {
  color: #fff;
  background: linear-gradient(90deg, rgba(0, 212, 255, 0.12), transparent);
  border-left-color: rgba(0, 212, 255, 0.35);
}
.side-link--on {
  color: var(--y2k-accent-bright);
  background: linear-gradient(90deg, rgba(0, 212, 255, 0.18), rgba(0, 212, 255, 0.04));
  border-left-color: var(--y2k-accent);
  text-shadow: 0 0 8px rgba(0, 245, 255, 0.35);
}

.side-foot {
  border-top: 2px groove var(--y2k-edge-lo);
  background: #0a0c10;
}

.side-acquire {
  background: linear-gradient(180deg, #00f5ff 0%, #00d4ff 55%, #00a8c4 100%) !important;
  color: #0a0a0a !important;
  border: 1px solid #00f5ff !important;
  border-radius: 3px !important;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.45),
    0 2px 0 #005f6b,
    0 0 16px rgba(0, 212, 255, 0.25) !important;
  font-weight: 700 !important;
  text-shadow: none !important;
}
.side-acquire:hover {
  filter: brightness(1.06);
  transform: translateY(-1px);
}

.side-acquire--float {
  position: fixed;
  bottom: 1.25rem;
  right: 1.25rem;
  z-index: 80;
  border-radius: 4px !important;
}

.content-well {
  flex: 1;
  background: linear-gradient(180deg, #0a0a0a 0%, #080810 100%);
}

.page-canvas {
  max-width: 46rem;
  margin: 0 auto;
  padding: 1.25rem 1rem 2.5rem;
}

.base-foot {
  border-top: 2px groove var(--y2k-edge-lo);
  background: #0c0e14;
  font-size: 11px;
  color: var(--y2k-muted);
}

.skip-jump {
  background: var(--y2k-accent);
  color: #0a0a0a;
  border: 1px solid var(--y2k-accent-bright);
  border-radius: 2px;
  font-family: Tahoma, sans-serif;
}

.menu-toggle {
  border-radius: 2px;
  background: linear-gradient(180deg, #2a2a32, #15151a);
  border: 2px outset #3a3a42;
  color: var(--y2k-accent);
}

/* Beveled panels */
.panel-bevel,
.cap-cell,
.log-card,
.metric-block,
.use-tile {
  background: linear-gradient(180deg, #14161e 0%, #0e1016 100%) !important;
  border: 2px solid var(--y2k-edge-hi) !important;
  border-bottom-color: var(--y2k-edge-lo) !important;
  border-right-color: var(--y2k-edge-lo) !important;
  border-radius: 3px !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
  box-shadow: inset 1px 1px 0 rgba(255, 255, 255, 0.05) !important;
}
.panel-bevel::before,
.panel-bevel::before { display: none !important; }

.act-btn-main {
  background: linear-gradient(180deg, #00f5ff 0%, #00d4ff 50%, #00a8c4 100%) !important;
  color: #0a0a0a !important;
  border: 1px solid #7ff !important;
  border-radius: 3px !important;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.5), 0 2px 0 #005f6b !important;
  font-family: Tahoma, Verdana, sans-serif !important;
  font-weight: 700 !important;
  text-shadow: none !important;
}

.act-btn-alt {
  background: linear-gradient(180deg, #2a2a32, #18181f) !important;
  color: var(--y2k-text) !important;
  border: 2px outset #3a3a42 !important;
  border-radius: 3px !important;
  backdrop-filter: none !important;
}

.block-tag,
.lead-chip,
.cap-intro__tag {
  border-radius: 2px !important;
  font-family: Verdana, sans-serif !important;
  font-size: 10px !important;
  background: #0a0a0a !important;
  border: 1px solid rgba(0, 212, 255, 0.35) !important;
  box-shadow: inset 0 1px 0 rgba(0, 212, 255, 0.15) !important;
}

.lead-title,
.cap-intro__title,
.block-hd,
h1, h2, h3 {
  font-family: Georgia, "Times New Roman", serif !important;
  letter-spacing: -0.02em;
}

.txt-shine {
  background: linear-gradient(180deg, #fff 0%, var(--y2k-accent-bright) 50%, var(--y2k-accent) 100%) !important;
  -webkit-background-clip: text !important;
  background-clip: text !important;
}

.call-strip {
  border-radius: 4px !important;
  border: 2px groove var(--y2k-edge-hi) !important;
  background: linear-gradient(180deg, rgba(0, 212, 255, 0.14), rgba(5, 7, 15, 0.95)) !important;
  animation: none !important;
}

.lead-band {
  min-height: auto !important;
  padding: 1.5rem 0 2rem !important;
}

.path-crumb {
  font-size: 11px;
  font-family: Verdana, sans-serif;
  border-bottom: 1px solid rgba(0, 212, 255, 0.12);
  margin-bottom: 1rem;
  padding-bottom: 0.35rem;
}

.img-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.88);
}
.img-overlay.is-open { display: flex; }
.img-overlay__x {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 2rem;
  height: 2rem;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(180deg, #444, #222);
  border: 2px outset #666;
  cursor: pointer;
}
.img-overlay__img {
  max-width: 92vw;
  max-height: 88vh;
  border: 2px inset #555;
  background: #111;
}

.copy-link { color: var(--y2k-accent) !important; }
.copy-link:hover { color: var(--y2k-accent-bright) !important; }

@media (max-width: 900px) {
  .doc-flow-wrap {
    flex-direction: column;
    margin: 0.5rem;
    min-height: auto;
  }
  .side-panel {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 90;
    width: 15rem;
    height: 100vh;
    transform: translateX(-100%);
    transition: transform 0.25s ease;
  }
  .side-panel.is-open { transform: translateX(0); }
  html[dir="rtl"] .side-panel {
    left: auto;
    right: 0;
    transform: translateX(100%);
  }
  html[dir="rtl"] .side-panel.is-open { transform: translateX(0); }
  .menu-toggle { display: flex; }
  .mark-cluster--band { display: none; }
}

@media (min-width: 901px) {
  .menu-toggle { display: none; }
  .mark-cluster--side { display: flex; }
}