:root{color-scheme:light;--paper:#f4efe6;--card:#fffdf8;--ink:#2a2f3a;--muted:#6f6878;--line:#e2dccd;--green:#1f6b4b;--amber:#c27f22;--gold:#e7c25a;--re-bg:var(--card);--re-ink:var(--ink);--re-muted:var(--muted);--re-line:var(--line);--re-accent:var(--green)}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:system-ui,sans-serif}[hidden]{display:none!important}button,select{font:inherit;color:inherit;min-height:44px;border:1px solid var(--line);border-radius:9px;background:var(--card);padding:8px 12px}button{cursor:pointer;touch-action:manipulation}button:disabled{opacity:.5;cursor:default}button:focus-visible,a:focus-visible,select:focus-visible{outline:3px solid var(--amber);outline-offset:3px}a{color:var(--green)}
.shell{max-width:1280px;margin:auto;padding:24px 32px 10px}header{display:flex;gap:12px;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:16px}.brand{display:inline-flex;align-items:center;min-height:44px;font-size:16px;font-weight:800;letter-spacing:2px;text-decoration:none;color:var(--ink)}.brand span{color:var(--amber)}.utilities{display:flex;gap:6px;flex-wrap:wrap}.utilities button{font-size:13px}.heading{margin:30px 0 22px}.eyebrow{font-size:12px;letter-spacing:2px;color:var(--green);font-weight:800}h1{font-size:clamp(36px,6vw,60px);letter-spacing:-2px;margin:0;line-height:1.1}h1 span{color:var(--green)}.howto{color:var(--muted);line-height:1.5}.layout{max-width:1140px;margin:auto}.lab{position:relative;border:1px solid var(--line);border-radius:20px;background:var(--card);padding:20px;box-shadow:0 12px 40px #3a2f1a08}
.game-area{scroll-margin-top:76px;width:min(100%,480px);margin:auto}.toolbar{display:flex;align-items:end;gap:10px;flex-wrap:wrap}.modes{display:flex;gap:0;flex:1 1 auto}.modes button{flex:1;border-radius:0;font-weight:700;font-size:14px}.modes button:first-child{border-radius:9px 0 0 9px}.modes button:last-child{border-radius:0 9px 9px 0;border-left:0}.modes button[aria-pressed="true"]{background:var(--green);border-color:var(--green);color:#fff}.range{flex:1 1 140px;font-size:13px;font-weight:700}.range select{display:block;width:100%;margin-top:5px}
.hud{display:grid;grid-template-columns:repeat(3,1fr);margin:16px 0;padding:10px 0;border-block:1px solid var(--line);text-align:center}.hud small{font-size:12px;color:var(--muted)}.hud strong{display:block;font-size:22px;font-variant-numeric:tabular-nums;margin-top:4px}
/* The rune tray: a 2×2 grid of stones on a brass-rimmed slate. Empty slots keep their place. */
.field{position:relative;border-radius:16px;background:radial-gradient(circle at 50% 45%,#2f4b44,#1e3430);padding:12px;box-shadow:inset 0 0 0 3px #b98a3e,inset 0 0 0 5px #5c4524}
.runes{display:grid;grid-template-columns:1fr 1fr;gap:12px;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none}
.rune{--glow:#5fe0c8;--stone:#2d6f68;position:relative;display:grid;place-content:center;gap:2px;aspect-ratio:5/4;min-height:88px;padding:6px;border:2px solid #0000;border-radius:46% 54% 44% 56%/52% 46% 54% 48%;background:radial-gradient(circle at 35% 28%,#ffffff40,#0000 42%),radial-gradient(circle at 50% 60%,var(--stone),#141d1c 120%);color:#fff8e6;box-shadow:inset 0 -6px 0 #0004,0 6px 14px #0006,0 0 0 1px #ffffff1a;transition:transform .12s ease-out,box-shadow .12s ease-out}
.rune[data-slot="1"]{--glow:#c79bff;--stone:#6a43a3}.rune[data-slot="2"]{--glow:#ffd27a;--stone:#a8661f}.rune[data-slot="3"]{--glow:#ff9fbd;--stone:#94375a}
.rune-value{font-size:clamp(30px,10vw,46px);font-weight:800;line-height:1;font-variant-numeric:tabular-nums;text-shadow:0 0 12px var(--glow),0 2px 0 #0006}.rune[data-long="true"] .rune-value{font-size:clamp(22px,7vw,32px)}.rune-expr{min-height:1.2em;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:12px;color:#ffffffc0}
.rune[aria-pressed="true"]{transform:translateY(-4px) scale(1.03);border-color:var(--gold);box-shadow:inset 0 -6px 0 #0004,0 10px 18px #0007,0 0 0 3px var(--gold),0 0 22px var(--glow)}
.rune[data-hint="true"],.ops button[data-hint="true"]{animation:hint 1s ease-in-out 3}@keyframes hint{50%{box-shadow:0 0 0 4px var(--gold),0 0 24px var(--gold)}}
.rune[data-empty="true"]{visibility:hidden}
.rune[data-win="true"]{--stone:#c8962e;--glow:#ffe9a0;animation:win .8s ease-out}@keyframes win{40%{transform:scale(1.08);filter:brightness(1.3)}}
.paused-note{position:absolute;inset:0;display:grid;place-content:center;gap:12px;text-align:center;border-radius:16px;background:#1e3430;color:white;font-size:24px;font-weight:800}.paused-note p{margin:0}.paused-note button{background:var(--gold);color:var(--ink)}body[data-phase="paused"] .runes{visibility:hidden}
.ops{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:12px}.ops button{min-height:56px;font-size:28px;font-weight:800;line-height:1;border-radius:12px;background:linear-gradient(#f6e3b4,#dcb565);border-color:#b98a3e;color:#4a3412;box-shadow:inset 0 -3px 0 #0002}.ops button[aria-pressed="true"]{background:var(--green);border-color:var(--green);color:#fff;box-shadow:0 0 0 3px var(--gold)}
.actions{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:10px}.actions button{font-size:14px;padding:8px 4px}
#status{font-size:14px;line-height:1.5;min-height:42px;margin-bottom:4px}.small,.instructions{font-size:13px;color:var(--muted);line-height:1.65}.small{margin:0}.instructions{margin:14px 4px}
.answer{margin:12px 0;padding:14px 16px;border:1px solid var(--line);border-radius:12px;background:#fbf6ea}.answer h2{margin:0 0 6px;font-size:17px}.answer-text{margin:0 0 6px;font-size:20px;font-weight:800;font-variant-numeric:tabular-nums}.answer ol{margin:0;padding-left:22px;line-height:1.7;font-size:14px}
.cc-re-again .cc-re-text{display:inline-flex;align-items:center;min-height:44px}
@media(max-width:600px){.shell{padding:12px 12px 4px}header{position:sticky;top:0;z-index:3;background:var(--paper);padding:6px 0 12px;gap:6px}.utilities{flex-wrap:nowrap}.lab{padding:12px}.heading{margin:16px 0 12px}.howto{font-size:14px;margin:8px 0}.eyebrow{letter-spacing:1px}.brand{font-size:12px;letter-spacing:1px}.utilities button{padding:6px 8px}.hud{margin:10px 0;padding:8px 0}.hud strong{font-size:18px;margin-top:2px}.field{padding:10px}.runes{gap:10px}}
.game-help-links{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px;margin:12px 4px}.game-help-links button,.game-help-links a{display:inline-flex;align-items:center;min-height:44px;font-size:13px}.game-help-links button{border:0;background:none;color:var(--green);padding:0}#help-panel{width:min(520px,calc(100% - 24px));max-height:calc(100dvh - 32px);padding:0;border:1px solid var(--line);border-radius:16px;background:var(--card);color:var(--ink)}#help-panel::backdrop{background:#17271fd9}#help-panel[open]{display:flex;flex-direction:column}.help-body{overflow:auto;padding:20px;line-height:1.65}.help-body h2{margin-top:0}.help-actions{padding:12px 20px;border-top:1px solid var(--line)}.help-actions button{width:100%}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}.rune{transition:none}.rune[data-win="true"],.rune[data-hint="true"],.ops button[data-hint="true"]{animation:none}}