*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #0d1117;--surface: #161b22;--surface2: #21262d;--border: #30363d;--text: #e6edf3;--text-muted: #8b949e;--player-blue: #2188ff;--ai-green: #28a745;--gold: #f0c040;--red: #f85149;--felt: #1a4731;--felt-border: #2d6a4f}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;font-size:14px}#root{height:100vh}.auth-container{display:flex;align-items:center;justify-content:center;min-height:100vh;background:radial-gradient(ellipse at center,#1a4731 0%,var(--bg) 70%)}.auth-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:2.5rem;width:100%;max-width:380px;box-shadow:0 8px 32px #00000080}.auth-title{font-size:2rem;font-weight:700;text-align:center;letter-spacing:2px;color:var(--gold);margin-bottom:.25rem}.auth-subtitle{text-align:center;color:var(--text-muted);margin-bottom:1.75rem}.auth-form{display:flex;flex-direction:column;gap:1rem}.form-group{display:flex;flex-direction:column;gap:.35rem}.form-group label{font-size:.85rem;color:var(--text-muted);font-weight:500}.form-group input{background:var(--bg);border:1px solid var(--border);border-radius:6px;padding:.65rem .85rem;color:var(--text);font-size:.95rem;transition:border-color .15s}.form-group input:focus{outline:none;border-color:var(--player-blue)}.auth-error{background:#f851491f;border:1px solid var(--red);border-radius:6px;padding:.6rem .85rem;color:var(--red);font-size:.85rem}.auth-switch{margin-top:1.25rem;text-align:center;color:var(--text-muted);font-size:.875rem}.btn-primary{background:var(--player-blue);color:#fff;border:none;border-radius:6px;padding:.7rem 1.25rem;font-size:.95rem;font-weight:600;cursor:pointer;transition:background .15s,opacity .15s}.btn-primary:hover:not(:disabled){background:#1a76e8}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-primary.large{padding:.85rem 2rem;font-size:1.05rem}.btn-secondary{background:var(--surface2);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:.5rem 1rem;font-size:.875rem;cursor:pointer;transition:background .15s}.btn-secondary:hover:not(:disabled){background:var(--border)}.btn-secondary:disabled{opacity:.5;cursor:not-allowed}.btn-ghost{background:transparent;color:var(--text-muted);border:none;padding:.5rem .75rem;cursor:pointer;font-size:.875rem;border-radius:6px;transition:color .15s,background .15s}.btn-ghost:hover{color:var(--text);background:var(--surface2)}.btn-ghost.small{padding:.3rem .6rem;font-size:.8rem}.link-btn{background:none;border:none;color:var(--player-blue);cursor:pointer;font-size:inherit;text-decoration:underline}.game-screen{display:flex;flex-direction:column;height:100vh;overflow:hidden}.game-header{display:flex;align-items:center;justify-content:space-between;padding:.6rem 1.25rem;background:var(--surface);border-bottom:1px solid var(--border);flex-shrink:0;gap:1rem}.header-left{display:flex;align-items:center;gap:1rem}.logo-text{font-size:1.1rem;font-weight:700;color:var(--gold);letter-spacing:1.5px}.welcome-text{color:var(--text-muted);font-size:.875rem}.header-right{display:flex;align-items:center;gap:.75rem}.sequence-counts{display:flex;gap:.75rem}.seq-count{font-size:.85rem;font-weight:600;padding:.2rem .6rem;border-radius:20px}.seq-count.player{background:#2188ff26;color:var(--player-blue);border:1px solid rgba(33,136,255,.3)}.seq-count.ai{background:#28a74526;color:var(--ai-green);border:1px solid rgba(40,167,69,.3)}.status-bar{text-align:center;padding:.4rem 1rem;background:var(--surface2);border-bottom:1px solid var(--border);font-size:.875rem;color:var(--text-muted);flex-shrink:0}.status-bar.loading{color:var(--gold)}.error-banner{background:#f851491f;border-bottom:1px solid var(--red);color:var(--red);padding:.5rem 1.25rem;font-size:.875rem;flex-shrink:0}.game-area{display:grid;grid-template-columns:1fr 180px;grid-template-rows:1fr auto;flex:1;overflow:hidden;min-height:0}.board-wrapper{grid-column:1;grid-row:1;overflow:auto;display:flex;align-items:center;justify-content:center;padding:1rem;background:var(--felt)}.game-sidebar{grid-column:2;grid-row:1 / 3;background:var(--surface);border-left:1px solid var(--border);padding:1rem;display:flex;flex-direction:column;gap:1rem;overflow-y:auto}.info-block{border-bottom:1px solid var(--border);padding-bottom:.75rem}.info-block h3{font-size:.75rem;text-transform:uppercase;letter-spacing:.8px;color:var(--text-muted);margin-bottom:.4rem}.info-block p{font-size:.875rem}.hint-text{font-size:.75rem;color:var(--text-muted);margin-top:.25rem;line-height:1.4}.legend-row{display:flex;align-items:center;gap:.5rem;font-size:.8rem;margin-top:.35rem}.selected-info{background:#2188ff12;border-radius:6px;padding:.6rem;border:1px solid rgba(33,136,255,.2)!important}.board-grid{display:grid;grid-template-columns:repeat(10,56px);grid-template-rows:repeat(10,72px);gap:3px;background:var(--felt-border);border:3px solid var(--felt-border);border-radius:4px}.board-cell{background:#f5f0e8;border-radius:3px;position:relative;display:flex;align-items:center;justify-content:center;cursor:pointer;-webkit-user-select:none;user-select:none;transition:box-shadow .1s,transform .1s;overflow:hidden}.board-cell:hover{box-shadow:0 0 0 2px #fff;z-index:1}.board-cell.wild-corner{background:#2d6a4f}.board-cell.in-sequence{background:#fff8dc}.board-cell.valid-target{cursor:crosshair;box-shadow:0 0 0 2px #2188ff;z-index:2;background:#e8f4ff}.cell-card-label{font-size:10px;font-weight:700;font-family:Georgia,serif;line-height:1;position:absolute;top:3px;left:4px;pointer-events:none}.chip{position:absolute;width:38px;height:38px;border-radius:50%;border:3px solid rgba(0,0,0,.25);box-shadow:inset 0 2px 4px #ffffff4d,0 2px 4px #0000004d}.chip.small{position:static;width:16px;height:16px;border-width:2px;display:inline-block;flex-shrink:0}.player-chip{background:radial-gradient(circle at 35% 35%,#69b4ff,#1a5fad)}.ai-chip{background:radial-gradient(circle at 35% 35%,#5dde7b,#1a6b33)}.wild-chip{background:radial-gradient(circle at 35% 35%,#f5d76e,#b8860b);border-color:#00000026}.sequence-chip{box-shadow:inset 0 2px 4px #fff6,0 0 8px 3px #ffd70099}@keyframes pulse-ring{0%{transform:scale(.85);opacity:.7}50%{transform:scale(1.05);opacity:.4}to{transform:scale(.85);opacity:.7}}.target-ring{position:absolute;width:44px;height:44px;border-radius:50%;border:2px solid var(--player-blue);animation:pulse-ring 1s ease-in-out infinite;pointer-events:none}.card-hand{grid-column:1;grid-row:2;background:var(--surface2);border-top:1px solid var(--border);padding:.6rem 1rem}.hand-label{font-size:.75rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.6px;margin-bottom:.5rem}.hand-hint{font-size:.75rem;color:var(--text-muted);margin-top:.4rem}.hand-cards{display:flex;gap:8px;flex-wrap:wrap}.playing-card{width:56px;height:80px;background:#fff;border:2px solid #ddd;border-radius:6px;position:relative;cursor:pointer;-webkit-user-select:none;user-select:none;display:flex;align-items:center;justify-content:center;transition:transform .1s,box-shadow .1s,border-color .1s;box-shadow:0 2px 4px #0003;font-family:Georgia,serif}.playing-card:hover{transform:translateY(-4px);box-shadow:0 6px 12px #0000004d}.playing-card.selected{border-color:var(--player-blue);box-shadow:0 0 0 3px #2188ff66,0 6px 12px #0000004d;transform:translateY(-6px)}.playing-card.dead{opacity:.6;border-color:var(--red)}.card-corner{position:absolute;display:flex;flex-direction:column;align-items:center;line-height:1.1}.card-corner.top-left{top:3px;left:4px}.card-corner.bottom-right{bottom:3px;right:4px;transform:rotate(180deg)}.card-rank{font-size:11px;font-weight:700}.card-suit{font-size:11px}.card-center-suit{font-size:22px}.dead-badge{position:absolute;bottom:2px;left:50%;transform:translate(-50%);font-size:7px;font-weight:700;color:var(--red);letter-spacing:.5px;font-family:sans-serif}.start-screen{flex:1;display:flex;align-items:center;justify-content:center;background:radial-gradient(ellipse at center,var(--felt) 0%,var(--bg) 70%)}.start-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:2.5rem;max-width:440px;text-align:center}.start-card h2{font-size:1.5rem;margin-bottom:.5rem}.start-card p{color:var(--text-muted);margin-bottom:1.25rem}.rules-summary{text-align:left;color:var(--text-muted);font-size:.875rem;line-height:1.8;margin-bottom:1.75rem;padding-left:1.25rem}.rules-summary li{margin-bottom:.15rem}.gameover-overlay{position:fixed;inset:0;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:100}.gameover-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:2.5rem 3rem;text-align:center;box-shadow:0 16px 48px #0009}.gameover-card h2{font-size:2rem;margin-bottom:.5rem;color:var(--gold)}.gameover-card p{color:var(--text-muted);margin-bottom:1.5rem}@keyframes slide-in-card{0%{opacity:0;transform:translateY(-10px) rotate(-3deg)}to{opacity:1;transform:translateY(0) rotate(0)}}.last-played-card-wrap{display:flex;justify-content:center;margin-top:.5rem}.last-played-block .playing-card{animation:slide-in-card .3s ease-out;cursor:default;pointer-events:none}.last-played-block .playing-card:hover{transform:none;box-shadow:0 2px 4px #0003}.played-by-label{font-size:.75rem;font-weight:600}.played-by-label.player{color:var(--player-blue)}.played-by-label.ai{color:var(--ai-green)}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:var(--surface)}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}