:root { --bg: #0b0c10; --fg: #f3f3f3; --accent: #d0aa5b; --muted: #8d8f95; --line: #2a2d34; }
body { margin: 0; background: var(--bg); color: var(--fg); font-family: system-ui, sans-serif; }
.topbar { position: fixed; top: 0; left: 0; right: 0; height: 48px; display: flex; align-items: center; gap: 1em; background: #111; padding: 0 1em; z-index: 100; box-shadow: 0 2px 8px rgba(0,0,0,.3); }
.topbar a { color: var(--accent); text-decoration: none; }
.topbar button { font-size: 24px; background: transparent; color: var(--accent); border: none; padding: 4px 8px; cursor: pointer; transition: color 0.2s; }
.topbar button:hover { color: var(--fg); }
.sidebar { position: fixed; top: 48px; bottom: 0; width: 85%; max-width: 320px; overflow: auto; background: #111; transition: transform .3s ease; transform: translateX(-100%); padding: 10px; }
.sidebar.open { transform: translateX(0); }
.overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,.5); backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px); z-index: 99; transition: opacity 0.3s; opacity: 0; }
.sidebar.open ~ .overlay { display: block; opacity: 1; }
.content { margin-top: 48px; padding: 16px; }
@media (min-width: 900px) { .sidebar { transform: none; position: static; width: 280px; height: calc(100vh - 48px); } .content { margin-left: 280px; } .overlay { display: none !important; } }
@media (max-width: 900px) { .viewer { padding: 12px; font-size: 1.05em; line-height: 1.6; } #htmlView, #mdView { min-height: calc(100vh - 60px); } }
.viewer { height: calc(100vh - 80px); overflow: auto; max-width: 820px; margin: 0 auto; }
#htmlView { width: 100%; height: 100%; border: none; background: #0b0c10; }
#mdView h1, #mdView h2, #mdView h3 { color: var(--accent); }
#mdView pre, #mdView code { overflow-x: auto; word-break: break-word; background: #111; padding: 0.5em; border-radius: 4px; color: var(--accent); }
.meta { color: var(--muted); margin-bottom: 12px; }
button#prev, button#next { background: transparent; border: 1px solid var(--line); color: var(--fg); border-radius: 8px; padding: 4px 10px; }
button#prev:hover, button#next:hover { border-color: var(--accent); color: var(--accent); }
.controls { display: flex; gap: 0.5em; margin-bottom: 8px; }
select { background: #0b0c10; color: var(--fg); border: 1px solid var(--line); border-radius: 4px; padding: 4px; }
#search { flex: 1; background: #0b0c10; color: var(--fg); border: 1px solid var(--line); border-radius: 4px; padding: 6px; }
.dir .label { display: flex; align-items: center; cursor: pointer; padding: 4px 6px; color: var(--accent); font-weight: 600; }
.dir .label::before { content: "▶"; margin-right: 6px; font-size: 0.8em; color: var(--muted); }
.dir.open .label::before { content: "▼"; }
.children { display: none; margin-left: 1em; border-left: 1px dashed var(--line); padding-left: 10px; }
.dir.open > .children { display: block; }
.file { display: block; padding: 4px 12px; color: var(--fg); text-decoration: none; border-radius: 4px; }
.file:hover { background: rgba(208,170,91,.1); }
.file.active { background: rgba(208,170,91,.2); outline: 1px solid var(--line); }
.pin { color: var(--accent); margin-right: 4px; }
.meta { color: var(--muted); font-size: 0.85em; margin-left: 6px; }