:root{color-scheme:dark;--bg:#0d0d11;--panel:#15151b;--panel-2:#1b1b23;--panel-3:#23232d;--border:#2a2a35;--border-strong:#3a3a48;--text:#e8e8ee;--text-dim:#9a9aab;--text-faint:#6b6b7b;--accent:#7c7cf5;--accent-hover:#9090ff;--accent-soft:#7c7cf524;--danger:#ef6a6a;--radius:8px;--radius-sm:6px;--sidebar-w:232px;--font:"Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--mono:ui-monospace, "SF Mono", "Cascadia Mono", Consolas, monospace}*,:before,:after{box-sizing:border-box}html,body{height:100%}body{background:var(--bg);color:var(--text);font-family:var(--font);-webkit-font-smoothing:antialiased;margin:0;font-size:14px;line-height:1.5}a{color:inherit;text-decoration:none}button,input{font:inherit;color:inherit}h1,h2,h3,p{margin:0}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}::selection{background:var(--accent-soft)}.app{grid-template-columns:var(--sidebar-w) 1fr;min-height:100vh;display:grid}.sidebar{background:var(--panel);border-right:1px solid var(--border);flex-direction:column;gap:24px;height:100vh;padding:16px 12px;display:flex;position:sticky;top:0}.brand{align-items:center;gap:10px;padding:4px 8px;display:flex}.brand-mark{color:#fff;background:linear-gradient(135deg,#5b5bd6,#7c7cf5 60%,#5aa0f5);border-radius:8px;place-items:center;width:30px;height:30px;display:grid}.brand-name{letter-spacing:-.01em;font-size:15px;font-weight:600}.nav{flex-direction:column;gap:2px;display:flex}.nav-link{border-radius:var(--radius-sm);color:var(--text-dim);align-items:center;gap:10px;padding:8px 10px;font-weight:500;transition:background .12s,color .12s;display:flex}.nav-link:hover{background:var(--panel-2);color:var(--text)}.nav-link[aria-current=page]{background:var(--accent-soft);color:var(--text)}.nav-link[aria-current=page] svg{color:var(--accent-hover)}.sidebar-foot{color:var(--text-faint);margin-top:auto;padding:8px;font-size:12px}.main{width:100%;min-width:0;max-width:1280px;padding:40px 48px 64px}.page-head{flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:16px;margin-bottom:36px;display:flex}.page-title{letter-spacing:-.02em;font-size:28px;font-weight:650}.page-sub{color:var(--text-dim);margin-top:4px;font-size:15px}.section-title{text-transform:uppercase;letter-spacing:.08em;color:var(--text-faint);margin-bottom:14px;font-size:12px;font-weight:600}@media (width<=760px){.app{grid-template-columns:1fr}.sidebar{border-right:0;border-bottom:1px solid var(--border);flex-direction:row;align-items:center;gap:8px;height:auto;padding:10px 12px;position:static;overflow-x:auto}.brand-name{display:none}.nav{flex-direction:row}.nav-link{white-space:nowrap}.sidebar-foot{display:none}.main{padding:24px 16px 48px}.page-title{font-size:24px}}.btn{border-radius:var(--radius-sm);border:1px solid var(--border-strong);background:var(--panel-2);cursor:pointer;justify-content:center;align-items:center;gap:8px;height:36px;padding:0 14px;font-weight:550;transition:background .12s,border-color .12s;display:inline-flex}.btn:hover{background:var(--panel-3)}.btn-primary{background:var(--accent);border-color:var(--accent);color:#0d0d11}.btn-primary:hover{background:var(--accent-hover);border-color:var(--accent-hover)}.btn-lg{height:42px;padding:0 20px;font-size:14.5px}.btn:disabled{opacity:.5;cursor:not-allowed}.icon-btn{border-radius:var(--radius-sm);width:28px;height:28px;color:var(--text-faint);cursor:pointer;background:0 0;border:0;place-items:center;display:grid}.icon-btn:hover{background:var(--panel-3);color:var(--danger)}.grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px;display:grid}.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);flex-direction:column;transition:border-color .12s,transform .12s;display:flex;position:relative;overflow:hidden}.card:hover{border-color:var(--border-strong);transform:translateY(-1px)}.card-link{flex-direction:column;flex:1;display:flex}.card-body{flex-direction:column;gap:6px;padding:12px 14px 14px;display:flex}.card-title{white-space:nowrap;text-overflow:ellipsis;font-size:14.5px;font-weight:600;overflow:hidden}.card-meta{color:var(--text-dim);gap:12px;font-size:12.5px;display:flex}.card-meta span{align-items:center;gap:5px;display:inline-flex}.card-delete{opacity:0;background:#0d0d11b3;position:absolute;top:8px;right:8px}.card:hover .card-delete,.card-delete:focus-visible{opacity:1}@media (hover:none){.card-delete{opacity:1}}.cover{border-bottom:1px solid var(--border);height:110px;position:relative;overflow:hidden}.cover svg{width:100%;height:100%;position:absolute;inset:0}.empty{text-align:center;border:1px dashed var(--border-strong);border-radius:var(--radius);background:var(--panel);flex-direction:column;align-items:center;gap:10px;padding:56px 24px;display:flex}.empty-icon{background:var(--accent-soft);width:48px;height:48px;color:var(--accent-hover);border-radius:12px;place-items:center;margin-bottom:4px;display:grid}.empty h3{font-size:16px}.empty p{color:var(--text-dim);max-width:360px;margin-bottom:8px}.dialog-backdrop{z-index:50;background:#050508a6;place-items:center;padding:16px;display:grid;position:fixed;inset:0}.dialog{background:var(--panel);border:1px solid var(--border-strong);border-radius:10px;width:100%;max-width:420px;padding:22px;box-shadow:0 20px 60px #00000080}.dialog h2{margin-bottom:4px;font-size:17px}.dialog p{color:var(--text-dim);margin-bottom:16px}.field-label{color:var(--text-dim);margin-bottom:6px;font-size:12px;font-weight:550;display:block}.input{background:var(--bg);border:1px solid var(--border-strong);border-radius:var(--radius-sm);width:100%;height:38px;padding:0 12px}.input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft);outline:none}.dialog-actions{justify-content:flex-end;gap:8px;margin-top:18px;display:flex}.workspace{text-align:center;background-color:var(--panel);border:1px solid var(--border);border-radius:var(--radius);background-image:linear-gradient(var(--border) 1px, transparent 1px), linear-gradient(90deg, var(--border) 1px, transparent 1px);background-position:-1px -1px;background-size:48px 48px;place-items:center;min-height:420px;display:grid}.workspace-inner{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:24px 32px}.workspace-inner p{color:var(--text-dim);margin-top:4px}.back-link{color:var(--text-dim);align-items:center;gap:6px;margin-bottom:14px;font-size:13px;display:inline-flex}.back-link:hover{color:var(--text)}.panel{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);max-width:560px;padding:20px}.panel p{color:var(--text-dim)}