:root{--accent: #2563eb;--accent-light: #dbeafe;--green: #16a34a;--bg: #f6f8fb;--card: #ffffff;--text: #1e293b;--muted: #64748b;--border: #e2e8f0;--radius: 12px}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text)}.app{max-width:760px;margin:0 auto;padding:0 16px 48px}.page{display:flex;flex-direction:column;gap:12px}h2{margin:20px 0 4px;font-size:1.2rem}h3{margin:8px 0;font-size:1rem}.topbar{display:flex;align-items:center;gap:20px;padding:14px 0;margin-bottom:8px;border-bottom:1px solid var(--border)}.logo{font-weight:700;font-size:1.1rem}.topbar nav{display:flex;gap:14px;flex:1}.topbar nav a{color:var(--muted);text-decoration:none;font-weight:500;padding:4px 8px;border-radius:8px}.topbar nav a.active{color:var(--accent);background:var(--accent-light)}.user{display:flex;align-items:center;gap:10px;font-size:.9rem}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:14px 16px}button{font:inherit;cursor:pointer;background:var(--accent);color:#fff;border:none;border-radius:10px;padding:10px 16px;font-weight:600}button:disabled{opacity:.5;cursor:default}.link-btn{background:none;color:var(--accent);padding:2px 4px;font-weight:500}input{font:inherit;width:100%;padding:10px 12px;margin-bottom:10px;border:1px solid var(--border);border-radius:10px;background:var(--bg)}input:focus{outline:2px solid var(--accent-light);border-color:var(--accent)}.muted{color:var(--muted)}.small{font-size:.85rem}.error{color:#dc2626;font-size:.9rem}.center-msg{text-align:center;padding:60px 0;color:var(--muted)}.login-wrap{min-height:100vh;display:grid;place-items:center;padding:16px}.login-card{width:100%;max-width:380px;background:var(--card);border:1px solid var(--border);border-radius:16px;padding:28px;text-align:center}.login-card h1{margin:0 0 4px;font-size:1.5rem}.login-card form{display:flex;flex-direction:column;margin-top:16px}.filter-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.chip{background:var(--card);color:var(--muted);border:1px solid var(--border);padding:6px 12px;border-radius:999px;font-weight:500}.chip.active{background:var(--accent);color:#fff;border-color:var(--accent)}.event-card{display:flex;flex-direction:column;gap:10px}.event-head{display:flex;align-items:center;gap:10px;font-size:.85rem}.sport-tag{background:var(--accent-light);color:var(--accent);padding:2px 8px;border-radius:999px;font-weight:600}.score{margin-left:auto;font-weight:700;font-size:1rem}.picks{display:flex;gap:8px}.pick-btn{flex:1;display:flex;flex-direction:column;gap:2px;align-items:center;background:var(--bg);color:var(--text);border:2px solid var(--border);border-radius:10px;padding:8px 6px;font-weight:500}.pick-btn .pick-label{font-size:.85rem;line-height:1.2}.pick-btn .pick-odds{font-size:.8rem;color:var(--accent);font-weight:700}.pick-btn.selected{border-color:var(--accent);background:var(--accent-light)}.pick-btn.won{border-color:var(--green)}.pick-btn:disabled{cursor:default;opacity:.75}.tip-result{margin:0;font-size:.9rem}.won-text{color:var(--green);font-weight:600}.group-card{display:flex;justify-content:space-between;align-items:center;text-decoration:none;color:var(--text)}.group-card:hover{border-color:var(--accent)}.group-name{font-weight:600}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:12px}@media (max-width: 560px){.two-col{grid-template-columns:1fr}}.invite-card{display:flex;justify-content:space-between;align-items:center}.invite-code{letter-spacing:2px;font-family:ui-monospace,monospace}.leaderboard{width:100%;border-collapse:collapse}.leaderboard th{text-align:left;color:var(--muted);font-size:.8rem;font-weight:600;padding:6px 8px;border-bottom:1px solid var(--border)}.leaderboard td{padding:8px;border-bottom:1px solid var(--border)}.leaderboard tr:last-child td{border-bottom:none}.leaderboard tr.me{background:var(--accent-light)}