:root{--bg: #09111a;--bg-soft: #111b27;--panel: #13243a;--line: #27415d;--text: #ecf2f8;--muted: #9cb2c8;--accent: #4da3ff;--accent-soft: #214f8b;--danger: #ff6d74;--warning: #ffbe5c}*{box-sizing:border-box}body{margin:0;font-family:IBM Plex Sans,Segoe UI,sans-serif;color:var(--text);background:radial-gradient(1200px 700px at 10% -20%,#1a3558 0%,transparent 58%),radial-gradient(900px 500px at 90% -10%,#153052 0%,transparent 62%),radial-gradient(1000px 560px at 100% 80%,#102742 0%,transparent 66%),var(--bg)}.app-shell{max-width:1200px;margin:0 auto;padding:28px 18px 48px;display:grid;gap:18px}.hero{display:flex;justify-content:space-between;gap:16px;align-items:flex-end}.session-chip{display:inline-flex;gap:10px;align-items:center;padding:10px 12px;border:1px solid var(--line);border-radius:999px;background:var(--bg-soft)}.session-chip span{color:var(--muted);font-size:13px}.session-chip button{background:transparent;border:1px solid #38526c;color:var(--text);border-radius:999px;padding:5px 10px;cursor:pointer}.eyebrow{color:var(--accent);margin:0 0 6px;text-transform:uppercase;font-weight:700;letter-spacing:.08em;font-size:12px}.hero .eyebrow{color:#4da3ff}h1{margin:0;font-size:clamp(24px,4vw,38px)}.lead{margin:8px 0 0;color:var(--muted)}.mode-switch{display:inline-flex;background:var(--bg-soft);border:1px solid var(--line);border-radius:999px;padding:4px}.mode-switch button{border:0;background:transparent;color:var(--muted);padding:10px 16px;border-radius:999px;cursor:pointer;font-weight:600}.mode-switch button.active{background:var(--accent-soft);color:#d8fff6}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}.stat-card{border:1px solid var(--line);background:linear-gradient(180deg,#15283d,#101e2e);border-radius:14px;padding:14px}.stat-positive{border-color:#2f6d5f}.stat-danger{border-color:#683842}.stat-head{display:flex;justify-content:space-between;color:var(--muted);font-size:13px}.stat-value{margin-top:8px;font-size:28px;font-weight:700}.stat-hint{margin:6px 0 0;color:var(--muted);font-size:13px}.panel{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:14px}.panel h2{margin:0 0 12px;font-size:18px}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse}th,td{border-bottom:1px solid #21384f;text-align:left;padding:10px 8px;font-size:14px}th{color:var(--muted);font-weight:600}.table-btn{border:1px solid #315d8f;background:#193456;color:#d6e8ff;border-radius:8px;padding:6px 10px;cursor:pointer;font-size:12px;font-weight:700}.inline-form{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:8px;margin-bottom:12px}.inline-form input,.inline-form select{border:1px solid #2a445f;background:#0d1825;color:var(--text);border-radius:10px;padding:9px 10px;outline:none}.inline-form button{border:1px solid #315d8f;background:#193456;color:#d6e8ff;border-radius:10px;padding:9px 10px;font-weight:700;cursor:pointer}.admin-layout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:14px}.admin-sidebar{display:grid;gap:8px;align-content:start}.admin-sidebar button{border:1px solid var(--line);background:#102033;color:var(--muted);border-radius:10px;padding:11px 14px;text-align:left;cursor:pointer;font-weight:700;transition:background .2s ease,border-color .2s ease,color .2s ease}.admin-sidebar button.active{border-color:#4f8bca;color:#e3efff;background:#1a3350}.admin-content{display:grid;gap:12px}.key-card{margin:4px 0 12px;border:1px solid #355c8e;background:#10243b;border-radius:10px;padding:10px 12px}.key-label{margin:0 0 6px;color:#a8c6ea;font-size:12px}.key-card code{display:block;font-size:12px;color:#e6f0ff;word-break:break-all}.key-hint{margin:8px 0 0;color:#a8c6ea;font-size:12px}.empty-block,.loading,.error{border-radius:12px;padding:14px;border:1px solid var(--line);background:var(--panel)}.login-card{max-width:430px;width:100%;margin:80px auto 0;border-radius:14px;border:1px solid var(--line);background:var(--panel);padding:18px}.login-form{display:grid;gap:12px;margin-top:14px}.login-form label{display:grid;gap:6px;color:var(--muted);font-size:13px}.login-form input{border:1px solid #2a445f;background:#0d1825;color:var(--text);border-radius:10px;padding:10px 12px;outline:none}.login-form input:focus{border-color:var(--accent)}.login-form button{margin-top:4px;border:0;border-radius:10px;padding:11px 14px;font-weight:700;cursor:pointer;background:linear-gradient(135deg,#39c8ac,#2b8f7c);color:#04231d}.error{border-color:#6b3642;color:#ffc4cc}.text-pos{color:#8fe9d7}.text-neg{color:#ffb6bb}@media(max-width:720px){.hero{flex-direction:column;align-items:flex-start}.admin-layout{grid-template-columns:1fr}.admin-sidebar{grid-template-columns:repeat(2,minmax(0,1fr))}}