:root {
  --finalos-bg: #090b10;
  --finalos-panel: #10131a;
  --finalos-panel-raised: #151923;
  --finalos-line: #252b38;
  --finalos-text: #f2f4f8;
  --finalos-muted: #8f98aa;
  --finalos-accent: #7869ee;
  --finalos-accent-soft: rgba(120, 105, 238, 0.14);
  /* Unified chrome — every page must match these */
  --finalos-top: 56px;
  --finalos-side: 240px;
  --finalos-side-collapsed: 64px;
  --finalos-content-max: 1120px;
  --finalos-radius: 10px;
}

.finalos-brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  letter-spacing: -0.02em;
  text-decoration: none;
  color: inherit;
}

.finalos-brand::before {
  content: "";
  width: 18px;
  height: 18px;
  border-radius: 5px;
  background: linear-gradient(145deg, #9b91ff, #6556dd 58%, #3f35a5);
  box-shadow: 0 0 0 1px rgba(255,255,255,.12) inset, 0 5px 16px rgba(94,76,220,.28);
  flex-shrink: 0;
}

.finalos-planned {
  opacity: .46;
  cursor: not-allowed !important;
}

.finalos-planned::after {
  content: "规划中";
  margin-left: auto;
  padding: 2px 6px;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 999px;
  color: var(--finalos-muted);
  font-size: 10px;
}

:focus-visible {
  outline: 2px solid rgba(145,134,238,.9) !important;
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
}

/* ── Unified chrome ─────────────────────────────────────────── */
.dash-header, .header, .top {
  min-height: var(--finalos-top) !important;
  height: var(--finalos-top) !important;
  box-sizing: border-box;
  border-bottom: 1px solid var(--finalos-line) !important;
  background: rgba(16,19,26,.96) !important;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 20px;
  flex-shrink: 0;
}

.dash-sidebar, .sidebar, .side {
  width: var(--finalos-side) !important;
  min-width: var(--finalos-side) !important;
  background: var(--finalos-panel) !important;
  border-right: 1px solid var(--finalos-line) !important;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

/* Content column helper */
.finalos-crumb {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--finalos-muted);
  font-size: 12px;
  min-width: 0;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.finalos-crumb a {
  color: var(--finalos-muted);
  text-decoration: none;
}
.finalos-crumb a:hover { color: var(--finalos-text); }
.finalos-crumb .sep { opacity: .45; }
.finalos-crumb .cur { color: var(--finalos-text); font-weight: 600; }

.finalos-page {
  width: 100%;
  max-width: var(--finalos-content-max);
  margin: 0 auto;
}

.shell-nav-item {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 9px 10px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  color: var(--finalos-muted);
  font-size: 12px;
  text-decoration: none;
  cursor: pointer;
  min-height: 36px;
  box-sizing: border-box;
}
.shell-nav-item:hover, .shell-nav-item.active {
  color: var(--finalos-text);
  border-color: var(--finalos-line);
  background: var(--finalos-accent-soft);
}
.shell-nav-divider { height: 1px; margin: 12px 4px; background: var(--finalos-line); }

/* Breadcrumb + header utilities used by index/project */
.hdr-brand-link {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  color: inherit;
  flex-shrink: 0;
}

/* Responsive shell */
@media (max-width: 1024px) {
  .dash-sidebar, .sidebar, .side {
    width: var(--finalos-side-collapsed) !important;
    min-width: var(--finalos-side-collapsed) !important;
  }
  .dash-sidebar .si-name,
  .dash-sidebar .sb-label,
  .dash-sidebar .sb-input,
  .dash-sidebar .sb-btn,
  .dash-sidebar #newProjectRow,
  .side .hint,
  .side small { display: none !important; }
  .shell-nav-item span:not(.finalos-brand) { display: none; }
  .pw-sidebar { width: 220px !important; }
  .finalos-page { max-width: 100%; padding: 0 12px; }
}
@media (max-width: 768px) {
  .dash-sidebar, .sidebar, .side { display: none !important; }
  .pw-sidebar { display: none !important; }
  .stats-grid { grid-template-columns: repeat(2, 1fr) !important; }
  .dash-header, .header, .top { padding: 0 12px !important; }
  .finalos-crumb { display: none; }
}

/* Touch targets — scope to shell controls only; do not hit login/oauth buttons */
.btn, .hdr-btn, .pw-btn, .sb-btn, .shell-nav-item {
  min-height: 32px;
}

/* Skip link */
.finalos-skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--finalos-accent);
  color: white;
  padding: 8px 12px;
  z-index: 10000;
  border-radius: 0 0 8px 0;
}
.finalos-skip:focus { left: 0; }

/* Code blocks from safe markdown renderer */
.finalos-code {
  background: rgba(0,0,0,.35);
  color: #d4d4d4;
  padding: 12px;
  border-radius: 8px;
  margin: 8px 0;
  font-size: 12px;
  overflow-x: auto;
  border: 1px solid rgba(255,255,255,.06);
  white-space: pre-wrap;
}