:root{--bg: #0b1120;--bg-elev: #131c31;--bg-card: #16203a;--border: #243047;--text: #e8eefc;--text-dim: #9fb0cd;--text-faint: #6f82a3;--accent: #10b981;--accent-2: #34d399;--accent-ink: #022c22;--easy: #34d399;--medium: #fbbf24;--hard: #f87171;--radius: 14px;--radius-sm: 10px;--shadow: 0 18px 50px rgba(2, 6, 23, .45);--maxw: 1080px;--font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;font-family:var(--font);color:var(--text);background:radial-gradient(1100px 600px at 80% -10%,rgba(16,185,129,.12),transparent 60%),radial-gradient(900px 500px at 0% 0%,rgba(59,130,246,.1),transparent 55%),var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}a{color:var(--accent-2);text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3{line-height:1.2;margin:0 0 .5em;letter-spacing:-.02em}.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}.app-shell{display:flex;flex-direction:column;min-height:100vh}.site-main{flex:1}.site-header{position:sticky;top:0;z-index:20;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#0b1120c7;border-bottom:1px solid var(--border)}.site-header__inner{display:flex;align-items:center;justify-content:space-between;min-height:64px;flex-wrap:wrap;gap:4px 10px;padding-top:6px;padding-bottom:6px}.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:1.15rem;color:var(--text)}.brand:hover{text-decoration:none}.brand__mark{display:grid;place-items:center;width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--accent),#0ea5e9);color:var(--accent-ink);font-size:1.2rem}.brand__accent{color:var(--accent-2)}.site-nav{display:flex;gap:6px;flex-wrap:wrap;row-gap:2px}.site-nav a{color:var(--text-dim);padding:8px 14px;border-radius:999px;font-weight:600;font-size:.95rem}.site-nav 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14px}.hero__title{font-size:clamp(2.1rem,6vw,3.6rem);font-weight:850;max-width:18ch}.hero__highlight{background:linear-gradient(120deg,var(--accent-2),#38bdf8);-webkit-background-clip:text;background-clip:text;color:transparent}.hero__lede{font-size:clamp(1.02rem,2.4vw,1.22rem);color:var(--text-dim);max-width:56ch;margin:18px 0 28px}.hero__actions{display:flex;flex-wrap:wrap;gap:12px}.section{padding:40px 0}.section__title{font-size:clamp(1.4rem,3.5vw,2rem);margin-bottom:24px}.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px}.category-card{display:flex;flex-direction:column;gap:8px;background:linear-gradient(180deg,var(--bg-card),var(--bg-elev));border:1px solid var(--border);border-radius:var(--radius);padding:24px;color:var(--text);box-shadow:var(--shadow);transition:transform .15s ease,border-color .15s 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var(--border);border-radius:var(--radius-sm);padding:20px}.feature__title{font-size:1.08rem;margin:0 0 6px}.feature__body{color:var(--text-dim);margin:0;font-size:.95rem}.puzzle-page{padding:36px 0 56px}.breadcrumbs{display:flex;gap:8px;align-items:center;color:var(--text-faint);font-size:.88rem;margin-bottom:14px}.breadcrumbs a{color:var(--text-dim)}.puzzle-page__header{margin-bottom:22px}.puzzle-page__title{font-size:clamp(1.8rem,4.5vw,2.6rem);margin:0}.puzzle-page__date{color:var(--text-dim);margin:4px 0 14px;font-size:1.05rem}.date-nav{display:flex;gap:8px;flex-wrap:wrap}.difficulty-tabs{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:24px}.difficulty-tab{font:inherit;font-weight:700;cursor:pointer;padding:10px 18px;border-radius:999px;background:var(--bg-elev);color:var(--text-dim);border:1px solid var(--border);transition:all .15s ease}.difficulty-tab:hover,.difficulty-tab.is-active{color:var(--text)}.difficulty-tab--easy.is-active{background:#34d39929;border-color:var(--easy);color:var(--easy)}.difficulty-tab--medium.is-active{background:#fbbf2429;border-color:var(--medium);color:var(--medium)}.difficulty-tab--hard.is-active{background:#f8717129;border-color:var(--hard);color:var(--hard)}.puzzle-layout{display:grid;grid-template-columns:minmax(0,460px) 1fr;gap:28px;align-items:start}.puzzle-board{display:flex;flex-direction:column;gap:14px}.puzzle-board__surface{width:100%;max-width:460px}.puzzle-board__controls{display:flex;gap:10px}.status-bar{padding:12px 16px;border-radius:var(--radius-sm);font-weight:700;text-align:center;border:1px solid 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16px}.badge{display:inline-flex;align-items:center;gap:4px;padding:4px 10px;border-radius:999px;font-size:.75rem;font-weight:800;letter-spacing:.02em}.badge--master{color:#fde68a;background:#d977062e;border:1px solid rgba(217,119,6,.55)}.theme-chips{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 16px}.chip{padding:5px 11px;border-radius:999px;font-size:.8rem;font-weight:600;color:var(--text-dim);background:var(--bg-elev);border:1px solid var(--border)}.puzzle-aside__how{color:var(--text-dim);font-size:.95rem}.puzzle-aside__attr{color:var(--text-faint);font-size:.85rem;margin-top:14px}.puzzle-aside__link{display:inline-block;margin-top:10px;font-weight:700}.notice{padding:16px;border-radius:var(--radius-sm);background:var(--bg-elev);border:1px solid var(--border);color:var(--text-dim)}.notice--bad{color:var(--hard);border-color:var(--hard)}.prose{max-width:760px}.prose h1{font-size:clamp(1.9rem,5vw,2.6rem)}.prose h2{margin-top:1.6em}.prose p,.prose li{color:var(--text-dim)}.prose strong{color:var(--text)}.streak-badge{display:inline-flex;align-items:center;gap:4px;padding:6px 12px;border-radius:999px;font-weight:800;font-size:.9rem;color:#fed7aa;background:#f9731629;border:1px solid rgba(249,115,22,.5)}.notice--streak{color:#fed7aa;border-color:#f9731680;background:#f973161f;font-weight:700;text-align:center;margin-bottom:18px}.leaderboard__intro{color:var(--text-dim);max-width:60ch;margin-top:-10px;margin-bottom:22px}.you-card{background:linear-gradient(180deg,var(--bg-card),var(--bg-elev));border:1px solid var(--border);border-radius:var(--radius);padding:20px 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th{color:var(--text-faint);font-size:.78rem;text-transform:uppercase;letter-spacing:.06em;font-weight:700}.leaderboard td:first-child,.leaderboard th:first-child{color:var(--text-dim);width:48px}.leaderboard .num{text-align:right;font-variant-numeric:tabular-nums}.leaderboard tr.is-you{background:#10b9811a}.leaderboard tr.is-you td{font-weight:700}.you-tag{margin-left:8px;padding:2px 8px;border-radius:999px;font-size:.7rem;font-weight:800;background:var(--accent);color:var(--accent-ink);text-transform:uppercase;letter-spacing:.05em}.wordle{padding:28px 0 56px;max-width:520px}.wordle__header{text-align:center;margin-bottom:18px}.wordle__title{font-size:clamp(1.8rem,5vw,2.4rem);margin:0}.wordle__sub{color:var(--text-dim);margin:6px 0 0}.wordle__toast{position:sticky;top:74px;z-index:5;margin:0 auto 12px;width:max-content;max-width:90%;background:var(--text);color:var(--bg);font-weight:700;padding:10px 16px;border-radius:8px;box-shadow:var(--shadow)}.wordle-grid{display:grid;grid-template-rows:repeat(6,1fr);gap:6px;width:min(330px,86vw);margin:0 auto 22px}.wordle-row{display:grid;grid-template-columns:repeat(5,1fr);gap:6px}.wordle-row.is-shake{animation:wordle-shake .45s ease}.wordle-tile{aspect-ratio:1;display:grid;place-items:center;font-size:clamp(1.4rem,6vw,2rem);font-weight:800;text-transform:uppercase;color:var(--text);background:transparent;border:2px solid var(--border);border-radius:6px;transition:transform .1s ease}.wordle-tile.is-filled{border-color:#55608a;transform:scale(1.04)}.wordle-tile.is-correct{background:#16a34a;border-color:#16a34a;color:#fff}.wordle-tile.is-present{background:#ca8a04;border-color:#ca8a04;color:#fff}.wordle-tile.is-absent{background:#3a4460;border-color:#3a4460;color:#fff}.wordle-keyboard{display:flex;flex-direction:column;gap:8px;margin-top:8px}.wordle-keyboard__row{display:flex;justify-content:center;gap:6px}.wordle-key{font:inherit;font-weight:700;cursor:pointer;min-width:30px;height:52px;flex:1 1 auto;max-width:44px;border:none;border-radius:7px;color:var(--text);background:#55608a;text-transform:uppercase}.wordle-key:hover{filter:brightness(1.1)}.wordle-key--wide{max-width:64px;font-size:.78rem}.wordle-key.is-correct{background:#16a34a;color:#fff}.wordle-key.is-present{background:#ca8a04;color:#fff}.wordle-key.is-absent{background:#2b3350;color:var(--text-faint)}.wordle__end{text-align:center;margin-top:8px}.wordle__result{font-size:1.2rem;font-weight:800;margin:0 0 14px}.wordle__end-actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}.wordle__comeback{color:var(--text-faint);margin-top:14px}@keyframes wordle-shake{0%,to{transform:translate(0)}20%{transform:translate(-6px)}40%{transform:translate(6px)}60%{transform:translate(-4px)}80%{transform:translate(4px)}}.sudoku{padding:28px 0 56px;max-width:560px}.sudoku__header{text-align:center;margin-bottom:18px}.sudoku__title{font-size:clamp(1.8rem,5vw,2.4rem);margin:0}.sudoku__sub{color:var(--text-dim);margin:6px 0 0}.sudoku-grid{display:grid;grid-template-columns:repeat(9,1fr);width:min(440px,92vw);margin:0 auto 16px;border:2px solid #55608a;border-radius:8px;overflow:hidden;background:var(--border);gap:1px}.sudoku-cell{aspect-ratio:1;border:none;display:grid;place-items:center;font:inherit;font-size:clamp(.95rem,3.4vw,1.35rem);font-weight:600;background:var(--bg-elev);color:var(--accent-2);cursor:pointer;padding:0}.sudoku-cell.is-given{color:var(--text);font-weight:800}.sudoku-cell.is-related{background:#1b2440}.sudoku-cell.is-selected{background:#10b98147}.sudoku-cell.is-conflict{color:var(--hard)}.sudoku-cell.is-wrong{background:#f8717159}.sudoku-cell.edge-right{border-right:2px solid #55608a}.sudoku-cell.edge-bottom{border-bottom:2px solid #55608a}.sudoku-grid.is-solved .sudoku-cell{color:var(--easy)}.sudoku-pad{display:flex;justify-content:center;gap:6px;flex-wrap:wrap;margin-bottom:12px}.sudoku-key{font:inherit;font-weight:800;font-size:1.1rem;cursor:pointer;width:clamp(34px,9vw,44px);height:clamp(42px,10vw,52px);border:none;border-radius:8px;background:#55608a;color:var(--text)}.sudoku-key:hover{filter:brightness(1.1)}.sudoku-key--erase{background:#2b3350}.sudoku-actions{display:flex;justify-content:center;align-items:center;gap:14px}.sudoku-progress{color:var(--text-faint);font-size:.9rem}.mini{padding:28px 0 56px}.mini__header{text-align:center;margin-bottom:18px}.mini__title{font-size:clamp(1.8rem,5vw,2.4rem);margin:0}.mini__sub{color:var(--text-dim);margin:6px 0 0}.mini-layout{display:grid;grid-template-columns:minmax(0,420px) 1fr;gap:28px;justify-content:center}.mini-grid{display:grid;width:min(340px,90vw);margin:0 auto 12px;border:2px solid #55608a;border-radius:8px;overflow:hidden;background:var(--border);gap:1px}.mini-cell{aspect-ratio:1;position:relative;border:none;display:grid;place-items:center;font:inherit;font-size:clamp(1.2rem,5vw,1.7rem);font-weight:800;background:var(--bg-elev);color:var(--text);cursor:pointer;padding:0;text-transform:uppercase}.mini-cell--black{background:#0a0f1e;cursor:default}.mini-cell.is-active-word{background:#1b2440}.mini-cell.is-selected{background:#10b9814d}.mini-cell.is-wrong{background:#f8717159}.mini-cell.is-solved{color:var(--easy)}.mini-cell__num{position:absolute;top:2px;left:4px;font-size:.55rem;font-weight:700;color:var(--text-faint)}.mini-active-clue{text-align:center;color:var(--text-dim);min-height:1.5em;margin:0 0 10px}.mini-active-clue strong{color:var(--accent-2);margin-right:6px}.mini-keyboard{margin-top:4px;margin-bottom:12px}.mini-clues{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:18px 20px;align-self:start}.mini-clues__title{font-size:.85rem;text-transform:uppercase;letter-spacing:.1em;color:var(--text-faint);margin:0 0 8px}.mini-clues>div+div{margin-top:16px}.mini-clues__list{list-style:none;margin:0;padding:0}.mini-clues__list li{padding:6px 8px;border-radius:6px;color:var(--text-dim);cursor:pointer;font-size:.95rem}.mini-clues__list li:hover{background:var(--bg-elev)}.mini-clues__list li.is-active{background:#10b98124;color:var(--text)}.mini-clues__list li strong{color:var(--accent-2);margin-right:6px}@media (max-width: 800px){.mini-layout{grid-template-columns:1fr}}.site-footer{border-top:1px solid var(--border);margin-top:40px;padding:28px 0;background:#0b112099}.site-footer__inner{color:var(--text-dim);font-size:.92rem}.site-footer__meta{color:var(--text-faint);font-size:.85rem;margin-top:6px}@media (max-width: 860px){.puzzle-layout{grid-template-columns:1fr}.puzzle-board__surface{max-width:100%;margin:0 auto}}@media (max-width: 520px){.hero{padding:40px 0 20px}.site-nav a{padding:8px 10px}.puzzle-facts{grid-template-columns:1fr 1fr}}@media (prefers-reduced-motion: reduce){*{animation-duration:.01ms!important;transition-duration:.01ms!important}}