:root{--bg: #eef0f4;--bg-elevated: #fafbfc;--bg-card: #fafbfc;--border: #dde1ea;--text: #2a2f3d;--text-muted: #737a8c;--accent: #5b5bd6;--accent-hover: #4747c2;--accent-soft: #eeeeff;--danger: #e0405a;--success: #17a673;--radius: 14px;--shadow: 0 10px 30px rgba(30, 34, 60, .06);font-family:Segoe UI,system-ui,-apple-system,sans-serif;letter-spacing:.01em}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}a{color:var(--accent);text-decoration:none}button,input,select{font-family:inherit;font-size:14px}.app-shell{min-height:100vh;display:flex;flex-direction:column}.topbar{display:flex;align-items:center;justify-content:space-between;padding:14px 28px;border-bottom:1px solid var(--border);background:var(--bg-elevated);position:sticky;top:0;z-index:10;box-shadow:0 1px #1e223c08}.topbar .brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;letter-spacing:.3px;color:var(--text)}.brand-mark{width:28px;height:28px;border-radius:8px;background:linear-gradient(145deg,#7373e0,#5b5bd6);box-shadow:0 8px 16px #5b5bd647;position:relative}.brand-mark:after{content:"";position:absolute;top:7px;right:7px;bottom:7px;left:11px;border:2px solid white;border-left:0;border-radius:0 3px 3px 0;opacity:.95}.topbar-actions{display:flex;align-items:center;gap:10px}.role-tag{font-size:12px;color:var(--text-muted);border:1px solid var(--border);background:var(--bg);border-radius:999px;padding:4px 10px}.topbar-link{font-size:14px;color:var(--text-muted);font-weight:600}.topbar-link:hover{color:var(--accent)}.main{flex:1;padding:36px 24px 56px;max-width:1040px;width:100%;margin:0 auto}.page-header{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px}.page-header h1,.page-header h2{margin:0;font-size:26px;letter-spacing:-.03em}.page-kicker{margin:0 0 6px;color:var(--text-muted);font-size:12px;text-transform:uppercase;letter-spacing:.14em}.page-sub{margin:6px 0 0;color:var(--text-muted);font-size:14px}.back-link{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--text-muted);margin-bottom:16px}.back-link:hover{color:var(--text)}.btn{display:inline-flex;align-items:center;gap:6px;padding:9px 16px;border-radius:8px;border:1px solid var(--border);background:var(--bg-card);color:var(--text);cursor:pointer;transition:background .15s,border-color .15s,transform .05s}.btn:hover{border-color:var(--accent);color:var(--accent)}.btn:active{transform:scale(.98)}.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}.btn-primary:hover{background:var(--accent-hover);border-color:var(--accent-hover);color:#fff}.btn-danger{border-color:var(--border);color:var(--danger);background:transparent}.btn-danger:hover{background:#e0405a14;border-color:var(--danger);color:var(--danger)}.btn-sm{padding:5px 10px;font-size:13px;border-radius:6px}.btn:disabled{opacity:.5;cursor:not-allowed}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}.card h2,.card h3{letter-spacing:-.02em}.card+.card{margin-top:16px}.input,.textarea{width:100%;padding:10px 12px;border-radius:8px;border:1px solid var(--border);background:#f3f4f8;color:var(--text)}.input:focus,.textarea:focus{outline:none;border-color:var(--accent)}.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}.field label{font-size:13px;color:var(--text-muted)}.row{display:flex;gap:12px;align-items:center}.row .input{flex:1}.grid-screens{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:18px}.screen-card h3{margin:0 0 8px;font-size:18px}.screen-card .meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap;color:var(--text-muted);font-size:13px;margin-bottom:16px}.empty-panel{text-align:center;padding:36px 20px;color:var(--text-muted)}.empty-panel h3{margin:0 0 8px;color:var(--text)}.error-text{color:var(--danger);font-size:13px}.success-text{color:var(--success);font-size:13px}.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.login-card{width:380px}.login-card h1{display:flex;align-items:center;gap:10px;font-size:22px;margin:0 0 6px}.login-card p{color:var(--text-muted);font-size:13px;margin-top:0;margin-bottom:20px}.slide-list{display:flex;flex-direction:column;gap:12px}.slide-row{display:flex;gap:14px;align-items:center;padding:12px;border:1px solid var(--border);border-radius:var(--radius);background:#f3f4f8}.slide-thumb{width:96px;height:54px;object-fit:cover;border-radius:6px;background:#000;flex-shrink:0}.slide-info{flex:1;min-width:0}.slide-info .title{font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.slide-info .sub{color:var(--text-muted);font-size:12px;margin-top:2px}.slide-actions{display:flex;gap:6px;align-items:center;flex-shrink:0}.pill{display:inline-flex;align-items:center;gap:6px;font-size:11px;padding:3px 9px;border-radius:999px;border:1px solid var(--border);color:var(--text-muted);background:#eef0f4}.pill:before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor;opacity:.7}.pill.active{color:var(--success);border-color:#17a6734d;background:#17a67314}.pill.active:before{opacity:1;box-shadow:0 0 8px var(--success)}.copy-url{display:flex;gap:8px;align-items:center;background:var(--accent-soft);border:1px dashed var(--border);border-radius:8px;padding:8px 12px;font-size:12px;color:var(--text-muted);overflow:hidden}.copy-url code{flex:1;overflow-x:auto;white-space:nowrap}.upload-form{display:flex;flex-wrap:wrap;gap:12px;align-items:flex-end}.upload-form .field{margin-bottom:0}.player-root{position:fixed;top:0;right:0;bottom:0;left:0;background:#000;overflow:hidden;cursor:none}.player-slide{position:absolute;top:0;right:0;bottom:0;left:0;background-size:contain;background-position:center;background-repeat:no-repeat;background-color:#000;opacity:0;transition:opacity .9s ease-in-out}.player-slide.visible{opacity:1}.player-empty{height:100%;display:flex;align-items:center;justify-content:center;text-align:center;padding:48px;color:#9aa8b8;background:radial-gradient(circle at 50% 42%,rgba(91,157,255,.12),transparent 42%),#000}.player-empty-inner{max-width:560px}.player-empty-mark{width:72px;height:72px;margin:0 auto 28px;border-radius:20px;background:linear-gradient(145deg,#7eb1ff,#3a78e8);box-shadow:0 0 40px #5b9dff59;position:relative;animation:player-pulse 2.8s ease-in-out infinite}.player-empty-mark:after{content:"";position:absolute;top:18px;right:18px;bottom:18px;left:26px;border:4px solid white;border-left:0;border-radius:0 6px 6px 0}.player-empty h2{margin:0 0 10px;color:#f4f7fb;font-size:42px;font-weight:650;letter-spacing:-.04em}.player-empty p{margin:0;font-size:20px;line-height:1.45;color:#7d8c9c}@keyframes player-pulse{0%,to{transform:scale(1);box-shadow:0 0 28px #5b9dff47}50%{transform:scale(1.04);box-shadow:0 0 52px #5b9dff80}}