:root{--navy: #0a1628;--dark-blue: #0d2137;--mid-blue: #1a3a5c;--accent: #00c6ff;--accent2: #0072ff;--gold: #ffd700;--danger: #ff4757;--success: #2ed573;--miss: #546e7a;--text: #e8f4f8;--text-muted: #8fa8c8;--border: #1e4976}*{box-sizing:border-box}html,body,#root{margin:0;padding:0;min-height:100vh;font-family:Segoe UI,system-ui,-apple-system,Roboto,sans-serif;color:var(--text)}body{background:radial-gradient(ellipse at top,#102b4a 0%,var(--navy) 60%) fixed,var(--navy)}a{color:var(--accent);text-decoration:none}button{cursor:pointer;border:none;font-family:inherit;color:var(--text)}.btn{background:linear-gradient(135deg,var(--accent),var(--accent2));border:none;border-radius:8px;padding:10px 18px;font-weight:600;font-size:14px;color:#03131f;transition:transform .1s,box-shadow .2s,filter .2s;box-shadow:0 4px 12px #00c6ff40}.btn:hover:not(:disabled){transform:translateY(-1px);filter:brightness(1.1)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn.secondary{background:transparent;color:var(--accent);border:1px solid var(--border);box-shadow:none}.btn.danger{background:linear-gradient(135deg,#ff6b6b,var(--danger));color:#fff}input,select{background:var(--navy);color:var(--text);border:1px solid var(--border);border-radius:8px;padding:10px 12px;font-size:14px;outline:none;width:100%}input:focus,select:focus{border-color:var(--accent);box-shadow:0 0 0 3px #00c6ff26}label{display:block;color:var(--text-muted);font-size:12px;text-transform:uppercase;letter-spacing:.08em;margin-bottom:6px}.navbar{display:flex;align-items:center;justify-content:space-between;padding:14px 32px;background:#0d2137d9;border-bottom:1px solid var(--border);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);position:sticky;top:0;z-index:10}.navbar .brand{font-size:20px;font-weight:700;background:linear-gradient(135deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent;letter-spacing:.04em}.navbar .links{display:flex;gap:18px;align-items:center}.navbar .links a{color:var(--text-muted);font-weight:500;font-size:14px}.navbar .links a:hover,.navbar .links a.active{color:var(--accent)}.navbar .user{display:flex;gap:12px;align-items:center;font-size:13px;color:var(--text-muted)}.page{max-width:1100px;margin:0 auto;padding:28px}.card{background:var(--dark-blue);border:1px solid var(--border);border-radius:14px;padding:24px;box-shadow:0 8px 32px #00000059}.title{font-size:26px;font-weight:700;background:linear-gradient(135deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent;margin:0 0 16px}.subtitle{color:var(--text-muted);margin:0 0 22px;font-size:14px}.alert{padding:10px 14px;border-radius:8px;font-size:13px;margin-bottom:14px}.alert.error{background:#ff475726;color:#ff8a95;border:1px solid rgba(255,71,87,.35)}.alert.info{background:#00c6ff1f;color:#88dfff;border:1px solid rgba(0,198,255,.35)}.alert.success{background:#2ed5731f;color:#7ee9ad;border:1px solid rgba(46,213,115,.35)}.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.auth-card{width:100%;max-width:420px;background:var(--dark-blue);border:1px solid var(--border);border-radius:16px;padding:32px;box-shadow:0 12px 48px #00000080}.auth-card .title{text-align:center;font-size:28px}.field{margin-bottom:14px}.auth-card .btn{width:100%;padding:12px}.auth-card .footer{text-align:center;margin-top:16px;font-size:13px;color:var(--text-muted)}.lobby-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}@media (max-width: 760px){.lobby-grid{grid-template-columns:1fr}}.game-list{list-style:none;padding:0;margin:12px 0 0;display:flex;flex-direction:column;gap:8px}.game-row{display:flex;justify-content:space-between;align-items:center;padding:12px 14px;background:#1a3a5c59;border:1px solid var(--border);border-radius:10px;font-size:14px}.game-row .meta{color:var(--text-muted);font-size:12px}.boards{display:grid;grid-template-columns:1fr 1fr;gap:30px;margin-top:18px}@media (max-width: 900px){.boards{grid-template-columns:1fr}}.board-wrap{display:flex;flex-direction:column;align-items:center}.board-title{font-weight:600;margin-bottom:8px;color:var(--text)}.board-title .sub{color:var(--text-muted);font-size:12px;font-weight:400}.board{display:inline-block;background:var(--dark-blue);padding:10px;border-radius:10px;border:1px solid var(--border)}.board-row{display:flex}.board-corner,.board-coord{width:28px;height:28px;display:flex;align-items:center;justify-content:center;font-size:11px;color:var(--text-muted)}.board-cell{width:32px;height:32px;border:1px solid rgba(30,73,118,.6);display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;cursor:default;-webkit-user-select:none;user-select:none;background:#061525;color:var(--text)}.board-cell.water{background:#061525}.board-cell.ship{background:var(--mid-blue);box-shadow:inset 0 0 0 1px #00c6ff26}.board-cell.rescued{background:#2ed57359;color:#d6ffe7}.board-cell.halo{background:#ffd70047;box-shadow:inset 0 0 0 1px #ffd7008c}.board-cell.revealed{background:#1a3a5c99;color:var(--accent)}.board-cell.revealed.n0{color:var(--text-muted)}.board-cell.revealed.n1{color:#88dfff}.board-cell.revealed.n2{color:#6fe6c0}.board-cell.revealed.n3{color:#ffd166}.board-cell.revealed.n4{color:#f96}.board-cell.revealed.n5,.board-cell.revealed.n6,.board-cell.revealed.n7,.board-cell.revealed.n8{color:var(--danger)}.board-cell.clickable{cursor:pointer}.board-cell.clickable:hover{background:#00c6ff2e}.board-cell.last-shot{box-shadow:inset 0 0 0 2px var(--gold)}.placement-tools{display:flex;gap:10px;align-items:center;margin:12px 0 16px;flex-wrap:wrap}.fleet-status{font-size:13px;color:var(--text-muted)}.fleet-status .good{color:var(--success)}.fleet-status .bad{color:var(--danger)}.turn-banner{text-align:center;padding:10px 14px;border-radius:10px;background:#00c6ff14;border:1px solid rgba(0,198,255,.3);margin:14px 0;font-weight:600;color:var(--accent)}.turn-banner.opp{color:var(--text-muted);border-color:var(--border);background:#1a3a5c66}.events{margin-top:14px;max-height:160px;overflow-y:auto;border-top:1px solid var(--border);padding-top:10px;font-size:13px;color:var(--text-muted)}.event{padding:4px 0}.event .me{color:var(--accent)}.event .opp{color:var(--danger)}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#030c16cc;display:flex;align-items:center;justify-content:center;z-index:50}.modal{background:var(--dark-blue);border:1px solid var(--border);border-radius:14px;padding:32px;max-width:420px;text-align:center;box-shadow:0 20px 60px #0009}.modal h2{margin:0 0 10px}.modal .big{font-size:56px;margin:8px 0 16px}table.lb{width:100%;border-collapse:collapse;margin-top:12px;font-size:14px}table.lb th,table.lb td{padding:10px;border-bottom:1px solid var(--border);text-align:left}table.lb th{color:var(--text-muted);font-weight:500;font-size:12px;text-transform:uppercase}table.lb tr:hover td{background:#00c6ff0d}table.lb td.rank.gold{color:var(--gold);font-weight:700}table.lb td.rank.silver{color:silver;font-weight:700}table.lb td.rank.bronze{color:#cd7f32;font-weight:700}.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.spacer{flex:1}.muted{color:var(--text-muted);font-size:13px}