:root{--color-bg:#fff;--color-surface:#f4f4f5;--color-text:#18181b;--color-text-muted:#52525b;--color-primary:#1d4ed8;--color-primary-text:#fff;--color-ok:#15803d;--color-error:#b91c1c;--color-border:#d4d4d8;--font-body:system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--font-size-base:1rem;--font-size-lg:1.25rem;--font-size-xl:1.75rem;--space-1:.25rem;--space-2:.5rem;--space-3:1rem;--space-4:1.5rem;--space-5:2.5rem;--radius:.5rem;--content-max-width:40rem;--tap-target:2.75rem}@media (prefers-color-scheme:dark){:root{--color-bg:#18181b;--color-surface:#27272a;--color-text:#fafafa;--color-text-muted:#a1a1aa;--color-primary:#93c5fd;--color-primary-text:#18181b;--color-ok:#4ade80;--color-error:#f87171;--color-border:#3f3f46}}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{background:var(--color-bg);min-height:100dvh;color:var(--color-text);font-family:var(--font-body);font-size:var(--font-size-base);margin:0;line-height:1.5;overflow-x:hidden}main{max-width:var(--content-max-width);padding:var(--space-4) var(--space-3);margin:0 auto}h1{font-size:var(--font-size-xl);margin:0 0 var(--space-3)}p{color:var(--color-text-muted)}a{color:var(--color-primary)}:focus-visible{outline:3px solid var(--color-primary);outline-offset:2px}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}:root{--rarity-C:#71717a;--rarity-R:#2563eb;--rarity-E:#9333ea;--rarity-L:#d97706;--color-win:#15803d;--color-lose:#b91c1c;--color-draw:#52525b;--nav-height:4rem;--card-width:9.5rem}@media (prefers-color-scheme:dark){:root{--rarity-C:#a1a1aa;--rarity-R:#60a5fa;--rarity-E:#c084fc;--rarity-L:#fbbf24;--color-win:#4ade80;--color-lose:#f87171;--color-draw:#a1a1aa}}body{padding-bottom:calc(var(--nav-height) + env(safe-area-inset-bottom))}.topbar{justify-content:space-between;align-items:center;gap:var(--space-2);max-width:var(--content-max-width);padding:var(--space-2) var(--space-3);margin:0 auto;display:flex}.brand{font-weight:700;font-size:var(--font-size-lg);color:var(--color-text);text-decoration:none}.tabbar{height:calc(var(--nav-height) + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:var(--color-surface);border-top:1px solid var(--color-border);z-index:10;grid-template-columns:repeat(5,1fr);display:grid;position:fixed;inset:auto 0 0}.tabbar a{color:var(--color-text-muted);flex-direction:column;justify-content:center;align-items:center;gap:2px;font-size:.75rem;text-decoration:none;display:flex}.tabbar a[aria-current=page]{color:var(--color-primary);font-weight:700}.tabbar .icon{font-size:1.25rem;line-height:1}h2{font-size:var(--font-size-lg);margin:var(--space-4) 0 var(--space-2)}.muted{color:var(--color-text-muted)}.small{font-size:.875rem}.stack>*+*{margin-top:var(--space-3)}.row{align-items:center;gap:var(--space-2);flex-wrap:wrap;display:flex}.spread{justify-content:space-between;align-items:center;gap:var(--space-2);display:flex}.panel{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:var(--space-3)}.btn{justify-content:center;align-items:center;gap:var(--space-2);min-height:var(--tap-target);padding:0 var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius);background:var(--color-bg);color:var(--color-text);font:inherit;cursor:pointer;font-weight:600;text-decoration:none;display:inline-flex}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--color-primary);border-color:var(--color-primary);color:var(--color-primary-text)}.btn-danger{border-color:var(--color-error);color:var(--color-error)}.btn-block{width:100%}.btn-lg{min-height:3.5rem;font-size:var(--font-size-lg)}label{margin-bottom:var(--space-1);font-weight:600;display:block}input,select,textarea{width:100%;min-height:var(--tap-target);padding:var(--space-2);border:1px solid var(--color-border);border-radius:var(--radius);background:var(--color-bg);color:var(--color-text);font:inherit}input[type=checkbox]{width:auto;min-height:0}textarea{min-height:6rem}.field+.field{margin-top:var(--space-3)}.error{color:var(--color-error)}.ok{color:var(--color-ok)}.alert{padding:var(--space-2) var(--space-3);border-radius:var(--radius);border:1px solid}.card-grid{grid-template-columns:repeat(auto-fill, minmax(var(--card-width), 1fr));gap:var(--space-2);display:grid}.card{border:2px solid var(--rarity,var(--color-border));border-radius:var(--radius);background:var(--color-surface);color:var(--color-text);text-align:left;font:inherit;flex-direction:column;padding:0;text-decoration:none;display:flex;position:relative;overflow:hidden}button.card{cursor:pointer}.card[data-rarity=C]{--rarity:var(--rarity-C)}.card[data-rarity=R]{--rarity:var(--rarity-R)}.card[data-rarity=E]{--rarity:var(--rarity-E)}.card[data-rarity=L]{--rarity:var(--rarity-L)}.card[aria-pressed=true]{outline:3px solid var(--color-primary);outline-offset:2px}.card.unowned{opacity:.45}.card-art{aspect-ratio:3/4;object-fit:cover;background:color-mix(in srgb, var(--rarity) 18%, var(--color-surface));width:100%;color:var(--rarity);justify-content:center;align-items:center;font-size:2.25rem;font-weight:700;display:flex}.card-body{padding:var(--space-1) var(--space-2) var(--space-2)}.card-name{font-size:.9rem;font-weight:700;line-height:1.2}.card-meta{color:var(--color-text-muted);font-size:.75rem}.badge{padding:0 var(--space-2);background:var(--rarity,var(--color-primary));color:var(--color-bg);border-radius:999px;font-size:.75rem;font-weight:700;display:inline-block}.card .badge-corner{top:var(--space-1);right:var(--space-1);position:absolute}.stat-list{margin:0;padding:0;list-style:none}.stat{align-items:center;gap:var(--space-2);grid-template-columns:7rem 1fr 2.5rem;padding:2px 0;font-size:.875rem;display:grid}.stat-bar{background:var(--color-border);border-radius:999px;height:.5rem;overflow:hidden}.stat-bar>span{background:var(--color-primary);height:100%;display:block}.stat-value{text-align:right;font-variant-numeric:tabular-nums}.table-wrap{overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:.875rem}th,td{padding:var(--space-2);border-bottom:1px solid var(--color-border);text-align:left}td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}tr.me{background:color-mix(in srgb, var(--color-primary) 12%, transparent);font-weight:700}.question{font-size:var(--font-size-lg);margin:var(--space-2) 0;font-weight:700}.timer{background:var(--color-border);border-radius:999px;height:.5rem;overflow:hidden}.timer>span{background:var(--color-primary);height:100%;transition:width .25s linear;display:block}.timer.urgent>span{background:var(--color-error)}.scoreboard{align-items:center;gap:var(--space-2);text-align:center;grid-template-columns:1fr auto 1fr;font-weight:700;display:grid}.scoreboard .score{font-size:var(--font-size-xl);font-variant-numeric:tabular-nums}.duel{gap:var(--space-2);grid-template-columns:1fr 1fr;display:grid}.result-win{color:var(--color-win)}.result-lose{color:var(--color-lose)}.result-draw{color:var(--color-draw)}.reveal{animation:.4s ease-out reveal}@keyframes reveal{0%{opacity:0;transform:scale(.85)rotateY(90deg)}to{opacity:1;transform:none}}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}