:root{--bg: #111820;--panel: #17212b;--panel-strong: #1f2c38;--text: #eef4f1;--muted: #8fa19a;--line: #2b3a45;--accent: #d6a84f;--ok: #59c68c;--warn: #e6b85c;--danger: #e66d5c;--info: #6aa8e8}*{box-sizing:border-box;margin:0;padding:0}body{font-family:IBM Plex Sans,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg);color:var(--text);font-size:14px;line-height:1.5}a{color:var(--info);text-decoration:none}a:hover{text-decoration:underline}button{cursor:pointer;font-family:inherit}input,select,textarea{font-family:inherit;font-size:14px}code,.mono{font-family:IBM Plex Mono,monospace}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg)}::-webkit-scrollbar-thumb{background:var(--line);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--muted)}.app-shell{display:flex;min-height:100vh}.sidebar{flex:0 0 220px;width:220px;background:var(--panel);border-right:1px solid var(--line);display:flex;flex-direction:column}.sidebar-logo{padding:16px 20px;border-bottom:1px solid var(--line);font-size:16px;font-weight:600;color:var(--accent);white-space:nowrap}.sidebar-nav{flex:1;padding:8px;min-width:0}.nav-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:6px;color:var(--muted);text-decoration:none;transition:background .15s,color .15s}.nav-item:hover{background:var(--panel-strong);color:var(--text);text-decoration:none}.nav-item.active{background:var(--panel-strong);color:var(--accent)}.sidebar-user{padding:12px;border-top:1px solid var(--line)}.main-content{flex:1;min-width:0;display:flex;flex-direction:column}.topbar{height:56px;background:var(--panel);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 24px}.page-content{flex:1;padding:24px}.page-header{margin-bottom:24px}.page-header h1{font-size:24px;font-weight:600;margin-bottom:4px}.page-header p{color:var(--muted)}@media (max-width: 760px){.app-shell{flex-direction:column}.sidebar{width:100%;flex:none;border-right:0;border-bottom:1px solid var(--line)}.sidebar-logo{padding:14px 16px}.sidebar-nav{display:flex;flex-wrap:wrap;gap:8px;padding:8px 12px 12px}.nav-item{flex:1 1 calc(50% - 8px);justify-content:center;min-width:120px;padding:9px 10px}.sidebar-user{padding:12px 16px}.page-content{padding:16px}}@media (max-width: 420px){.nav-item{flex-basis:100%}}