/* ============================================================
   APS platform - universal persistent sidebar.
   Self-contained + theme-aware: carries its OWN --sb-* tokens
   (dark default, light under html[data-theme="light"]) so the
   sidebar looks identical on every tool regardless of that
   page's own palette. Classes are prefixed .aps-sb- to avoid
   colliding with any tool's existing CSS.
   Pair with aps-nav.js (the Tools switcher) and the shared
   theme toggle. ASCII-only.
   ============================================================ */
:root {
  --sb-w: 250px;
  --sb-bg: #13171e;
  --sb-bg-soft: #1a1f2b;
  --sb-border: #1e2530;
  --sb-fg: #e2e8f0;
  --sb-fg-dim: #8890a8;
  --sb-fg-mute: #5b647b;
  --sb-accent: #4a7cff;
  --sb-accent-dim: rgba(74, 124, 255, 0.14);
  --sb-hover: #222a37;
  --sb-danger: #ef4444;
  --sb-danger-bg: rgba(239, 68, 68, 0.10);
  --sb-r: 8px;
}
html[data-theme="light"] {
  --sb-bg: #ffffff;
  --sb-bg-soft: #f6f8fc;
  --sb-border: #e3e8ef;
  --sb-fg: #1a2233;
  --sb-fg-dim: #5a6478;
  --sb-fg-mute: #8a93a6;
  --sb-accent: #3a6df0;
  --sb-accent-dim: rgba(58, 109, 240, 0.10);
  --sb-hover: #eaeff7;
  --sb-danger: #dc2626;
  --sb-danger-bg: rgba(220, 38, 38, 0.08);
}

.aps-sb {
  width: var(--sb-w);
  background: var(--sb-bg);
  border-right: 1px solid var(--sb-border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 50;
  transition: transform 0.2s;
  font-family: 'DM Sans', system-ui, sans-serif;
}
.aps-sb-hdr {
  padding: 18px 20px;
  border-bottom: 1px solid var(--sb-border);
  display: flex; align-items: center; gap: 12px;
  cursor: pointer; text-decoration: none;
}
.aps-sb-logo {
  width: 36px; height: 36px;
  background: var(--sb-accent); border-radius: var(--sb-r);
  display: flex; align-items: center; justify-content: center;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-weight: 700; font-size: 13px; color: #fff; flex-shrink: 0;
}
.aps-sb-hdr h2 { font-size: 16px; font-weight: 700; color: var(--sb-fg); margin: 0; line-height: 1.2; }
.aps-sb-hdr .aps-sb-sub { font-size: 11px; color: var(--sb-fg-mute); }

.aps-sb-nav { flex: 1; padding: 10px 10px; overflow-y: auto; }
.aps-sb-sec {
  font-size: 10px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 1px; color: var(--sb-fg-mute); padding: 14px 12px 6px;
}
.aps-sb-item {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; border-radius: var(--sb-r);
  font-size: 14px; font-weight: 500; color: var(--sb-fg-dim);
  cursor: pointer; transition: 0.12s; text-decoration: none;
  border: none; background: none; width: 100%; text-align: left;
  font-family: inherit;
}
.aps-sb-item:hover { background: var(--sb-hover); color: var(--sb-fg); }
.aps-sb-item.active { background: var(--sb-accent-dim); color: var(--sb-accent); }
.aps-sb-ico { font-size: 16px; line-height: 1; width: 20px; text-align: center; flex-shrink: 0; }

/* Collapsed global tool switcher (<details>). */
.aps-sb-tools { margin-bottom: 4px; }
.aps-sb-tools > summary { list-style: none; }
.aps-sb-tools > summary::-webkit-details-marker { display: none; }
.aps-sb-caret { margin-left: auto; font-size: 10px; transition: transform 0.15s; opacity: 0.7; }
.aps-sb-tools[open] > summary .aps-sb-caret { transform: rotate(180deg); }
.aps-sb-toolmenu { margin: 2px 0 4px 13px; padding-left: 7px; border-left: 1px solid var(--sb-border); display: flex; flex-direction: column; }
.aps-sb-toolmenu .aps-sb-item { font-size: 13px; padding: 8px 12px; }

.aps-sb-ft { padding: 12px 14px; border-top: 1px solid var(--sb-border); }
.aps-sb-user { display: flex; align-items: center; gap: 10px; padding: 6px 8px; }
.aps-sb-avatar {
  width: 32px; height: 32px; background: var(--sb-accent); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 700; color: #fff; flex-shrink: 0;
}
.aps-sb-uname { font-size: 13px; font-weight: 600; color: var(--sb-fg); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.aps-sb-urole { font-size: 11px; color: var(--sb-fg-mute); text-transform: capitalize; }
.aps-sb-btn {
  display: flex; align-items: center; gap: 8px; width: 100%;
  padding: 9px 12px; margin-top: 6px; border: none; background: none;
  color: var(--sb-fg-dim); font-family: inherit; font-size: 13px;
  cursor: pointer; border-radius: var(--sb-r); transition: 0.12s; text-decoration: none;
}
.aps-sb-btn:hover { background: var(--sb-hover); color: var(--sb-fg); }
.aps-sb-btn.danger:hover { background: var(--sb-danger-bg); color: var(--sb-danger); }
.aps-sb-btn .aps-sb-ico { font-size: 15px; }

/* Main content offset. Wrap each page's content in .aps-main. */
.aps-main { margin-left: var(--sb-w); min-height: 100vh; }

/* Mobile: collapse to an off-canvas drawer with a hamburger. */
.aps-sb-toggle {
  display: none; position: fixed; top: 14px; left: 14px; z-index: 60;
  width: 40px; height: 40px; background: var(--sb-bg); border: 1px solid var(--sb-border);
  border-radius: var(--sb-r); align-items: center; justify-content: center;
  cursor: pointer; color: var(--sb-fg); font-size: 18px;
}
.aps-sb-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 45; }
@media (max-width: 768px) {
  .aps-sb { transform: translateX(-100%); }
  .aps-sb.open { transform: translateX(0); }
  .aps-sb-overlay.open { display: block; }
  .aps-sb-toggle { display: flex; }
  .aps-main { margin-left: 0; }
}