:root{--bg:#080b16;--surface:#10162a;--surface2:#151d34;--text:#f5f7ff;--muted:#9da8c4;--line:rgba(255,255,255,.1);--primary:#7c3aed;--primary2:#a78bfa;--teal:#2dd4bf;--game-bg:#0c1224;--shadow:0 24px 70px rgba(0,0,0,.32);--radius:22px;--shell:min(1160px,calc(100% - 36px));font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color-scheme:dark}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(circle at 15% 0%,rgba(124,58,237,.13),transparent 30%),var(--bg);color:var(--text);line-height:1.6}a{color:inherit;text-decoration:none}button,select{font:inherit}.shell{width:var(--shell);margin-inline:auto}.skip-link{position:absolute;left:-999px;top:10px;background:#fff;color:#000;padding:10px 14px;z-index:100}.skip-link:focus{left:10px}.site-header{position:sticky;top:0;z-index:30;background:rgba(8,11,22,.78);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}.nav-wrap{height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.03em}.brand-mark{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;background:linear-gradient(135deg,var(--primary),#4f46e5);box-shadow:0 8px 26px rgba(124,58,237,.35);color:#fff}.main-nav{display:flex;gap:28px;color:var(--muted);font-size:.94rem}.main-nav a:hover{color:var(--text)}.theme-toggle{width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:var(--surface);color:var(--text);cursor:pointer}.hero{min-height:650px;display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:50px;padding-block:72px 80px}.eyebrow{display:inline-block;font-size:.76rem;font-weight:800;letter-spacing:.14em;color:var(--primary2);margin-bottom:12px}.hero h1,.game-hero h1{font-size:clamp(3rem,7vw,6.2rem);line-height:.94;letter-spacing:-.065em;margin:0 0 24px}.hero h1 span{background:linear-gradient(100deg,#fff 10%,#a78bfa 45%,#5eead4 85%);-webkit-background-clip:text;background-clip:text;color:transparent}.hero p{max-width:670px;font-size:1.16rem;color:var(--muted);margin:0 0 28px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 20px;border:1px solid transparent;border-radius:14px;font-weight:750;cursor:pointer;transition:.2s ease}.btn.primary,.btn.compact{background:linear-gradient(135deg,var(--primary),#5b21b6);color:#fff;box-shadow:0 12px 30px rgba(124,58,237,.26)}.btn.ghost{background:var(--surface);border-color:var(--line);color:var(--text);box-shadow:none}.btn.compact{min-height:42px;padding:0 16px}.btn:hover{transform:translateY(-1px)}.hero-trust{display:flex;gap:20px;flex-wrap:wrap;margin-top:24px;color:#b8c2db;font-size:.88rem}.hero-visual{position:relative;min-height:440px;display:grid;place-items:center}.orb{position:absolute;border-radius:50%;filter:blur(4px)}.orb-a{width:320px;height:320px;background:rgba(124,58,237,.24);right:10%;top:9%}.orb-b{width:220px;height:220px;background:rgba(45,212,191,.16);left:8%;bottom:5%}.mini-board{position:relative;z-index:2;width:min(390px,92%);aspect-ratio:1;display:grid;grid-template-columns:repeat(3,1fr);gap:12px;padding:22px;border:1px solid var(--line);border-radius:32px;background:rgba(16,22,42,.8);box-shadow:var(--shadow);transform:rotate(4deg)}.tile{display:grid;place-items:center;border-radius:20px;background:#1b2440;font-weight:900;font-size:1.55rem;box-shadow:inset 0 1px rgba(255,255,255,.05)}.tile.accent{background:linear-gradient(135deg,#6d28d9,#8b5cf6)}.tile.accent2{background:linear-gradient(135deg,#0f766e,#2dd4bf);color:#071512}.section{padding-block:90px}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:32px;margin-bottom:34px}.section-heading h2,.prose-section h2,.content-grid h2{font-size:clamp(2rem,4vw,3.35rem);letter-spacing:-.05em;line-height:1.02;margin:0}.section-heading>p{max-width:460px;color:var(--muted);margin:0}.game-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}.game-card{position:relative;min-height:270px;padding:24px;border-radius:var(--radius);border:1px solid var(--line);background:linear-gradient(180deg,rgba(255,255,255,.035),rgba(255,255,255,.012));grid-column:span 2;transition:.25s ease;overflow:hidden}.game-card.featured{grid-column:span 4;background:radial-gradient(circle at 90% 15%,rgba(124,58,237,.25),transparent 35%),var(--surface)}.game-card:hover{transform:translateY(-5px);border-color:rgba(167,139,250,.45);box-shadow:var(--shadow)}.game-icon{width:54px;height:54px;display:grid;place-items:center;border-radius:16px;background:rgba(124,58,237,.13);color:#c4b5fd;font-weight:900}.game-card h3{font-size:1.45rem;margin:28px 0 8px}.game-card p{color:var(--muted);margin:0 0 26px}.play-link{position:absolute;bottom:22px;font-weight:800;color:#ddd6fe}.badge{position:absolute;right:20px;top:20px;padding:6px 10px;border-radius:999px;background:rgba(45,212,191,.12);color:#5eead4;font-size:.75rem;font-weight:800}.band{border-block:1px solid var(--line);background:rgba(255,255,255,.018)}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.feature-grid article{padding:28px;border-left:1px solid var(--line)}.feature-grid span{font-size:.8rem;color:var(--primary2);font-weight:900}.feature-grid h3{font-size:1.5rem;margin:14px 0 8px}.feature-grid p{color:var(--muted);margin:0}.prose-section{display:grid;grid-template-columns:.9fr 1.1fr;gap:70px}.prose-columns{display:grid;grid-template-columns:1fr 1fr;gap:28px;color:var(--muted)}.faq-list{border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line);padding:18px 0}summary{cursor:pointer;font-weight:800;font-size:1.05rem}details p{color:var(--muted);max-width:850px}.site-footer{border-top:1px solid var(--line);padding:55px 0 28px;background:#070a12}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:50px}.footer-grid>div{display:flex;flex-direction:column;gap:8px}.footer-grid p{color:var(--muted);max-width:430px}.footer-grid a:not(.brand){color:var(--muted)}.footer-bottom{border-top:1px solid var(--line);margin-top:38px;padding-top:22px;display:flex;justify-content:space-between;color:var(--muted);font-size:.86rem}.game-hero{padding-block:56px 34px}.game-hero h1{font-size:clamp(2.8rem,6vw,5.2rem);margin-bottom:18px}.game-hero>p{font-size:1.12rem;max-width:720px;color:var(--muted)}.breadcrumbs{display:flex;gap:8px;color:var(--muted);font-size:.84rem;margin-bottom:28px}.controls-note{display:inline-flex;margin-top:8px;padding:8px 12px;border:1px solid var(--line);border-radius:999px;color:#c7d2fe;font-size:.82rem}.game-shell{padding-bottom:40px}.game-panel{border:1px solid var(--line);border-radius:28px;background:linear-gradient(180deg,var(--surface),rgba(16,22,42,.78));box-shadow:var(--shadow);padding:24px;min-height:300px}.game-toolbar{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:20px}.game-toolbar label{display:flex;gap:10px;align-items:center;color:var(--muted)}select{border:1px solid var(--line);border-radius:12px;background:var(--surface2);color:var(--text);padding:10px 12px}.stats-row{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:18px}.stats-row>div,.inline-stat{padding:12px 14px;border:1px solid var(--line);border-radius:14px;background:rgba(0,0,0,.12)}.stats-row span,.inline-stat{color:var(--muted);font-size:.82rem}.stats-row strong,.inline-stat strong{display:block;color:var(--text);font-size:1.05rem}.inline-stat strong{display:inline;margin-left:6px}.mines-wrap{overflow:auto;padding-bottom:4px}.mines-board{--cols:9;display:grid;grid-template-columns:repeat(var(--cols),minmax(28px,1fr));gap:3px;width:max-content;min-width:min(100%,560px);margin:auto}.mine-cell{aspect-ratio:1;min-width:28px;border:1px solid rgba(255,255,255,.08);border-radius:5px;background:#202b4a;color:#fff;font-weight:900;cursor:pointer}.mine-cell:hover{background:#2b3860}.mine-cell.open{background:#10182d;cursor:default}.mine-cell.mine,.mine-cell.reveal-mine{background:#7f1d1d}.mine-cell.flagged{color:#fbbf24}.mine-cell[data-n="1"]{color:#60a5fa}.mine-cell[data-n="2"]{color:#34d399}.mine-cell[data-n="3"]{color:#fb7185}.mine-cell[data-n="4"]{color:#a78bfa}.canvas-wrap{display:grid;place-items:center}.canvas-wrap canvas{display:block;width:min(100%,560px);height:auto;border-radius:18px;border:1px solid var(--line);touch-action:none}.dpad{display:none;grid-template-columns:repeat(3,54px);justify-content:center;gap:6px;margin-top:18px}.dpad button{width:54px;height:54px;border-radius:14px;border:1px solid var(--line);background:var(--surface2);color:var(--text);font-size:1.2rem}.memory-board{display:grid;grid-template-columns:repeat(4,minmax(58px,110px));gap:10px;justify-content:center}.memory-card{position:relative;aspect-ratio:1;border:1px solid var(--line);border-radius:16px;background:#202b4a;color:#fff;cursor:pointer;font-size:1.8rem;transform-style:preserve-3d}.memory-card .card-front{display:none}.memory-card.open,.memory-card.matched{background:#171f38}.memory-card.open .card-back,.memory-card.matched .card-back{display:none}.memory-card.open .card-front,.memory-card.matched .card-front{display:inline}.memory-card.matched{outline:1px solid rgba(45,212,191,.45)}.ttt-board{display:grid;grid-template-columns:repeat(3,minmax(86px,140px));gap:8px;justify-content:center}.ttt-cell{aspect-ratio:1;border:1px solid var(--line);border-radius:18px;background:#18223d;color:#fff;font-size:clamp(2.3rem,8vw,4.6rem);font-weight:900}.ttt-cell[data-v="x"]{color:#a78bfa}.ttt-cell[data-v="o"]{color:#5eead4}.ttt-cell.win{outline:2px solid #5eead4}.board-2048{display:grid;grid-template-columns:repeat(4,minmax(62px,110px));gap:10px;justify-content:center;touch-action:none}.tile-2048{aspect-ratio:1;border-radius:16px;background:#202a46;display:grid;place-items:center;font-size:clamp(1.1rem,4vw,2rem);font-weight:900}.tile-2048[data-v="2"]{background:#29334f}.tile-2048[data-v="4"]{background:#39415e}.tile-2048[data-v="8"]{background:#6d28d9}.tile-2048[data-v="16"]{background:#7c3aed}.tile-2048[data-v="32"]{background:#8b5cf6}.tile-2048[data-v="64"]{background:#0f766e}.tile-2048[data-v="128"]{background:#0d9488}.tile-2048[data-v="256"]{background:#14b8a6;color:#071512}.tile-2048[data-v="512"]{background:#2dd4bf;color:#071512}.tile-2048[data-v="1024"],.tile-2048[data-v="2048"]{background:#f59e0b;color:#1b1204}.content-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px}.steps,.tips{padding-left:22px;color:var(--muted)}.steps li,.tips li{margin:13px 0}.mini-links{display:flex;flex-wrap:wrap;gap:10px}.mini-links a{padding:11px 15px;border-radius:12px;border:1px solid var(--line);background:var(--surface)}[data-theme="light"]{--bg:#f7f8fc;--surface:#fff;--surface2:#f1f3f9;--text:#14182a;--muted:#667085;--line:rgba(16,24,40,.12);--game-bg:#edf0f7;color-scheme:light}[data-theme="light"] body{background:radial-gradient(circle at 15% 0%,rgba(124,58,237,.08),transparent 30%),var(--bg)}[data-theme="light"] .site-header{background:rgba(247,248,252,.84)}[data-theme="light"] .site-footer{background:#f0f2f7}[data-theme="light"] .hero h1 span{-webkit-text-fill-color:transparent}[data-theme="light"] .game-panel{background:#fff}[data-theme="light"] .mine-cell{background:#dce2f1;color:#111827}[data-theme="light"] .mine-cell.open{background:#f7f8fc}[data-theme="light"] .memory-card,[data-theme="light"] .ttt-cell,[data-theme="light"] .tile-2048{color:#111827}
@media(max-width:900px){.main-nav{display:none}.hero{grid-template-columns:1fr;min-height:auto;padding-top:60px}.hero-visual{min-height:360px}.game-grid{grid-template-columns:1fr 1fr}.game-card,.game-card.featured{grid-column:auto}.prose-section,.content-grid{grid-template-columns:1fr;gap:36px}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:1/-1}.dpad{display:grid}}
@media(max-width:620px){:root{--shell:min(100% - 24px,1160px)}.nav-wrap{height:64px}.hero{padding-block:48px}.hero h1{font-size:clamp(2.7rem,14vw,4.1rem)}.hero-visual{min-height:290px}.mini-board{width:280px;padding:14px;gap:8px;border-radius:24px}.tile{border-radius:14px;font-size:1.1rem}.section{padding-block:62px}.section-heading{align-items:start;flex-direction:column}.game-grid,.feature-grid,.prose-columns{grid-template-columns:1fr}.game-card,.game-card.featured{min-height:245px}.feature-grid article{border-left:0;border-top:1px solid var(--line)}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}.footer-bottom{flex-direction:column;gap:8px}.game-panel{padding:14px;border-radius:20px}.stats-row{grid-template-columns:1fr 1fr}.stats-row>div:last-child{grid-column:1/-1}.memory-board{grid-template-columns:repeat(4,1fr)}.ttt-board,.board-2048{width:100%;grid-template-columns:repeat(3,1fr)}.board-2048{grid-template-columns:repeat(4,1fr)}.theme-toggle{width:38px;height:38px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}}


/* ===== Game viewport v1.2 ===== */
body.game-page{overflow-x:hidden}
.game-page .game-hero{height:118px;padding:12px 0 10px;display:grid;grid-template-columns:minmax(0,1fr) auto;grid-template-rows:auto auto auto;grid-template-areas:"crumb crumb" "title note" "desc note";align-content:center;column-gap:24px;row-gap:2px}
.game-page .game-hero .breadcrumbs{grid-area:crumb;margin:0 0 2px;font-size:.76rem}
.game-page .game-hero .eyebrow{display:none}
.game-page .game-hero h1{grid-area:title;font-size:clamp(1.65rem,3.2vw,2.45rem);line-height:1;letter-spacing:-.045em;margin:0}
.game-page .game-hero>p{grid-area:desc;margin:3px 0 0;max-width:none;font-size:.88rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.game-page .game-hero .controls-note{grid-area:note;align-self:center;margin:0;max-width:430px;text-align:center;justify-content:center;line-height:1.25}
.game-page .game-shell{height:calc(100svh - 190px);min-height:430px;padding:0 0 14px;display:grid;place-items:center;overflow:hidden}
.game-page .game-panel{width:100%;height:100%;min-height:0;max-height:760px;padding:14px 16px;border-radius:24px;display:flex;flex-direction:column;overflow:hidden}
.game-page .game-toolbar{flex:0 0 auto;margin-bottom:10px;min-height:42px}
.game-page .stats-row{flex:0 0 auto;margin-bottom:10px}
.game-page .mines-wrap,.game-page .canvas-wrap{flex:1 1 auto;min-height:0;overflow:hidden;display:grid;place-items:center;padding:0}
.game-page .canvas-wrap canvas{width:auto;height:auto;max-width:100%;max-height:100%;aspect-ratio:1;object-fit:contain}
.game-page .memory-board,.game-page .ttt-board,.game-page .board-2048{width:min(100%,calc(100svh - 310px),540px);max-height:100%;align-self:center;margin:auto}
.game-page .ttt-board{width:min(100%,calc(100svh - 300px),500px)}
.game-page .dpad{flex:0 0 auto;margin-top:8px}

/* Minesweeper: always fit the visible game area */
.game-page .mines-board{min-width:0;max-width:100%;max-height:100%;margin:auto;gap:var(--mine-gap,3px);grid-template-columns:repeat(var(--cols),var(--mine-cell,28px));grid-template-rows:repeat(var(--rows,9),var(--mine-cell,28px));width:auto}
.game-page .mine-cell{position:relative;min-width:0;width:var(--mine-cell,28px);height:var(--mine-cell,28px);aspect-ratio:auto;padding:0;font-size:clamp(8px,calc(var(--mine-cell,28px) - 4px),1rem);line-height:1;touch-action:manipulation;user-select:none;-webkit-user-select:none;overflow:visible}
.game-page .mines-board.micro-cells .mine-cell{border-radius:2px;border-width:0;font-size:9px}
.mine-cell.chord-hint{animation:chordHint .25s ease}
.mine-cell.wrong-flag{background:#4c1d2f!important;color:#fecdd3!important}
.mine-cell.auto-flag{animation:autoFlag .35s ease both}
.mine-cell.exploding{z-index:7;background:#ff6b00!important;color:#fff!important;animation:mineCore .52s ease-out both}
.mine-cell.exploding::before,.mine-cell.exploding::after{content:"";position:absolute;left:50%;top:50%;pointer-events:none;border-radius:999px;transform:translate(-50%,-50%);z-index:-1}
.mine-cell.exploding::before{width:360%;height:360%;background:radial-gradient(circle,#fff 0 7%,#fde047 8% 18%,#fb923c 19% 34%,rgba(239,68,68,.7) 35% 48%,transparent 70%);animation:blastFlash .52s cubic-bezier(.2,.8,.2,1) both;mix-blend-mode:screen}
.mine-cell.exploding::after{width:110%;height:110%;border:3px solid rgba(255,220,120,.95);box-shadow:0 0 22px #fb923c,0 0 55px rgba(239,68,68,.9);animation:blastRing .52s ease-out both}
.mines-board.board-impact{animation:boardShake .5s cubic-bezier(.36,.07,.19,.97)}
.mines-board.game-lost .reveal-mine{animation:revealMine .24s ease both}

@keyframes chordHint{0%,100%{transform:scale(1)}50%{transform:scale(.84);box-shadow:inset 0 0 0 2px rgba(167,139,250,.8)}}
@keyframes autoFlag{0%{transform:scale(.5);opacity:.2}100%{transform:scale(1);opacity:1}}
@keyframes mineCore{0%{transform:scale(1)}25%{transform:scale(1.35)}100%{transform:scale(.95);background:#7f1d1d}}
@keyframes blastFlash{0%{opacity:0;transform:translate(-50%,-50%) scale(.08)}20%{opacity:1}100%{opacity:0;transform:translate(-50%,-50%) scale(1.3)}}
@keyframes blastRing{0%{opacity:1;transform:translate(-50%,-50%) scale(.1)}100%{opacity:0;transform:translate(-50%,-50%) scale(4)}}
@keyframes boardShake{10%,90%{transform:translateX(-2px)}20%,80%{transform:translateX(4px)}30%,50%,70%{transform:translateX(-7px)}40%,60%{transform:translateX(7px)}}
@keyframes revealMine{from{transform:scale(.45);opacity:.2}to{transform:scale(1);opacity:1}}

@media(max-width:900px){
 .game-page .game-hero{height:96px;grid-template-columns:minmax(0,1fr) auto;grid-template-areas:"title note" "desc note";padding:10px 0}
 .game-page .game-hero .breadcrumbs{display:none}
 .game-page .game-hero h1{font-size:clamp(1.45rem,5vw,2rem)}
 .game-page .game-hero>p{font-size:.8rem}
 .game-page .game-hero .controls-note{font-size:.7rem;padding:6px 8px;max-width:270px}
 .game-page .game-shell{height:calc(100svh - 168px);min-height:420px;padding-bottom:8px}
 .game-page .game-panel{padding:10px;border-radius:18px}
 .game-page .game-toolbar{gap:7px;margin-bottom:7px;min-height:38px}
 .game-page .game-toolbar .btn.compact{min-height:38px;padding:0 11px;font-size:.82rem}
 .game-page .game-toolbar label{font-size:.8rem;gap:6px}
 .game-page select{padding:7px 8px;font-size:.8rem}
 .game-page .inline-stat{padding:8px 10px;font-size:.75rem}
 .game-page .stats-row{gap:6px;margin-bottom:7px}
 .game-page .stats-row>div{padding:7px 9px}
 .game-page .stats-row span{font-size:.7rem}
 .game-page .stats-row strong{font-size:.9rem}
 .game-page .memory-board,.game-page .ttt-board,.game-page .board-2048{width:min(100%,calc(100svh - 285px),440px)}
 .game-page .dpad{margin-top:6px;grid-template-columns:repeat(3,46px);gap:4px}
 .game-page .dpad button{width:46px;height:46px;border-radius:12px}
}
@media(max-width:620px){
 .game-page .game-hero{height:78px;display:flex;align-items:center;justify-content:space-between;gap:10px}
 .game-page .game-hero h1{font-size:1.35rem;white-space:nowrap}
 .game-page .game-hero>p{display:none}
 .game-page .game-hero .controls-note{font-size:.63rem;max-width:58%;padding:5px 7px}
 .game-page .game-shell{height:calc(100svh - 142px);min-height:390px}
 .game-page .game-panel{padding:8px}
 .game-page .game-toolbar{justify-content:center}
 .game-page .stats-row{grid-template-columns:repeat(3,1fr)}
 .game-page .stats-row>div:last-child{grid-column:auto}
 .game-page .memory-board,.game-page .ttt-board,.game-page .board-2048{width:min(100%,calc(100svh - 260px),390px)}
}
@media(max-height:650px){
 .game-page .game-hero{height:64px}
 .game-page .game-hero>p,.game-page .game-hero .controls-note{display:none}
 .game-page .game-shell{height:calc(100svh - 136px);min-height:320px}
 .game-page .game-toolbar{min-height:34px;margin-bottom:5px}
 .game-page .stats-row{margin-bottom:5px}
 .game-page .memory-board,.game-page .ttt-board,.game-page .board-2048{width:min(100%,calc(100svh - 215px),400px)}
}