:root{--bg: #0b0f14;--bg-elevated: #12181f;--bg-card: #161d26;--border: #232c37;--text: #e8edf3;--text-muted: #8a99a8;--accent: #4f8cff;--accent-hover: #6fa0ff;--danger: #ff5d6c;--success: #3ecf8e;--radius: 12px;--shadow: 0 8px 24px rgba(0, 0, 0, .35);font-family:Segoe UI,system-ui,-apple-system,sans-serif}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--bg);color:var(--text)}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 24px;border-bottom:1px solid var(--border);background:var(--bg-elevated)}.topbar .brand{font-weight:700;font-size:18px;letter-spacing:.2px}.topbar .brand span{color:var(--accent)}.main{flex:1;padding:32px 24px;max-width:960px;width:100%;margin:0 auto}.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)}.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)}.btn-danger{border-color:var(--danger);color:var(--danger);background:transparent}.btn-danger:hover{background:#ff5d6c1a}.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:20px}.card+.card{margin-top:16px}.input,.textarea{width:100%;padding:10px 12px;border-radius:8px;border:1px solid var(--border);background:var(--bg);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}.grid-screens{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}.screen-card h3{margin:0 0 4px}.screen-card .meta{color:var(--text-muted);font-size:13px;margin-bottom:14px}.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}.login-card{width:340px}.login-card h1{font-size:20px;margin-bottom:4px}.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:var(--bg)}.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{font-size:11px;padding:2px 8px;border-radius:999px;border:1px solid var(--border);color:var(--text-muted)}.pill.active{color:var(--success);border-color:var(--success)}.copy-url{display:flex;gap:8px;align-items:center;background:var(--bg);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{color:#556;font-family:system-ui,sans-serif;height:100%;display:flex;align-items:center;justify-content:center;text-align:center;padding:24px}