/* ============================================================
   DeskPane Demo — Shared Design System
   共用 reset / header / badge / scrollbar
   ============================================================ */

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

:root {
  --d-bg:        #0b0f1a;
  --d-panel:     #111827;
  --d-panel2:    #1a2236;
  --d-border:    rgba(255,255,255,0.07);
  --d-border2:   rgba(255,255,255,0.13);
  --d-accent:    #3b82f6;
  --d-accent-h:  #60a5fa;
  --d-text:      #e2e8f0;
  --d-muted:     rgba(226,232,240,0.45);
  --d-success:   #22c55e;
  --d-warn:      #f59e0b;
  --d-font:      system-ui, -apple-system, 'Segoe UI', sans-serif;
  --d-header-h:  48px;
  --d-sidebar-w: 240px;
}

html, body {
  height: 100%;
  background: var(--d-bg);
  color: var(--d-text);
  font-family: var(--d-font);
  font-size: 14px;
  line-height: 1.5;
  overflow: hidden;
}

/* ── Demo Header ─────────────────────────────────────────── */
.dh {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--d-header-h);
  background: var(--d-panel);
  border-bottom: 1px solid var(--d-border);
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 16px;
  z-index: 9999;
  flex-shrink: 0;
}
.dh-back {
  color: var(--d-muted);
  text-decoration: none;
  font-size: 12px;
  padding: 3px 8px;
  border-radius: 5px;
  border: 1px solid var(--d-border2);
  transition: color .15s, border-color .15s;
  white-space: nowrap;
}
.dh-back:hover { color: var(--d-text); border-color: var(--d-accent); }
.dh-logo { font-size: 18px; line-height: 1; }
.dh-title { font-weight: 600; font-size: 14px; letter-spacing: .3px; }
.dh-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .3px;
}
.b-js    { background: rgba(247,223,30,.12); color: #f7df1e; }
.b-jq    { background: rgba(0,126,255,.18);  color: #4fb3f7; }
.b-vue   { background: rgba(66,184,131,.18); color: #42b883; }
.b-react { background: rgba(97,218,251,.15); color: #61dafb; }
.b-tool  { background: rgba(255,200,80,.14); color: #ffc850; }

.dh-sep {
  width: 1px;
  height: 20px;
  background: var(--d-border2);
  margin: 0 2px;
}
.dh-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ── Generic Button ─────────────────────────────────────── */
.d-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  border-radius: 6px;
  border: 1px solid var(--d-border2);
  background: var(--d-panel2);
  color: var(--d-text);
  text-decoration: none;
  font-size: 12px;
  font-family: var(--d-font);
  cursor: pointer;
  transition: background .15s, border-color .15s;
  white-space: nowrap;
}
.d-btn:hover { background: rgba(255,255,255,0.09); border-color: var(--d-accent); }
.d-btn-accent {
  background: var(--d-accent);
  border-color: var(--d-accent);
  color: #fff;
}
.d-btn-accent:hover { background: var(--d-accent-h); border-color: var(--d-accent-h); }

/* ── Main layout helper ──────────────────────────────────── */
.d-layout {
  display: flex;
  position: fixed;
  top: var(--d-header-h);
  left: 0; right: 0; bottom: 0;
  overflow: hidden;
}

/* ── Sidebar ─────────────────────────────────────────────── */
.d-sidebar {
  width: var(--d-sidebar-w);
  flex-shrink: 0;
  background: var(--d-panel);
  border-right: 1px solid var(--d-border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.d-sidebar-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 12px 10px;
}
.d-section-title {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--d-muted);
  padding: 8px 6px 4px;
}

/* ── App launcher button ─────────────────────────────────── */
.d-app-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 8px 10px;
  border-radius: 7px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--d-text);
  font-size: 13px;
  font-family: var(--d-font);
  cursor: pointer;
  text-align: left;
  transition: background .12s, border-color .12s;
  margin-bottom: 2px;
}
.d-app-btn:hover { background: rgba(255,255,255,0.06); border-color: var(--d-border2); }
.d-app-btn.active { background: rgba(59,130,246,0.18); border-color: rgba(59,130,246,0.4); }
.d-app-btn .icon { font-size: 18px; flex-shrink: 0; width: 26px; text-align: center; }
.d-app-btn .label { font-size: 13px; flex: 1; }
.d-app-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--d-accent);
  flex-shrink: 0;
}

/* ── Canvas (window area) ─────────────────────────────────── */
.d-canvas {
  flex: 1;
  position: relative;
  overflow: hidden;
}

/* ── Event log ───────────────────────────────────────────── */
.d-log {
  height: 180px;
  flex-shrink: 0;
  border-top: 1px solid var(--d-border);
  background: var(--d-panel);
  padding: 8px 10px;
  overflow-y: auto;
  font-family: 'Cascadia Code', 'Fira Code', monospace;
  font-size: 11px;
}
.d-log-entry { color: rgba(34,197,94,.9); padding: 1px 0; }
.d-log-entry.ev-close { color: rgba(239,68,68,.85); }
.d-log-entry.ev-focus { color: rgba(59,130,246,.9); }
.d-log-entry.ev-minimize { color: rgba(245,158,11,.9); }

/* ── Scrollbar ───────────────────────────────────────────── */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.12); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.22); }