/* Hallmark · genre: playful · macrostructure: Marquee Hero (scattered game-UI props) · theme: Hum, pastel drop · enrichment: Tier-A CSS game-UI props · motion: CSS only, reduced-motion safe */
:root{
  --color-paper:oklch(97% 0.015 300);--color-paper-2:oklch(94% 0.025 300);--color-shell:oklch(99% 0.006 95);
  --color-ink:oklch(32% 0.05 280);--color-muted:oklch(50% 0.04 280);--color-dot:oklch(86% 0.03 300);
  --color-pink:oklch(85% 0.08 5);--color-mint:oklch(89% 0.08 165);--color-lav:oklch(83% 0.08 300);
  --color-butter:oklch(93% 0.09 95);--color-sky:oklch(87% 0.07 230);--color-peach:oklch(88% 0.08 55);
  --font-display:"Bricolage Grotesque","Zen Maru Gothic","Plus Jakarta Sans",system-ui,sans-serif;
  --font-body:"Plus Jakarta Sans","Zen Maru Gothic",system-ui,-apple-system,"Hiragino Sans","Noto Sans JP",sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,monospace;
  --line-w:3px;--radius:18px;--shadow:4px 4px 0 var(--color-ink);
  --ease-spring:cubic-bezier(0.34,1.56,0.64,1);--ease-out:cubic-bezier(0.22,1,0.36,1);
  /* aliases used by the DEV page */
  --bg:var(--color-ink);--line:var(--color-dot);--mute:var(--color-muted);--card:var(--color-shell);
  --yellow:var(--color-butter);--pink:var(--color-pink);--mint:var(--color-mint);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;overflow-x:clip}
body{margin:0;background:var(--color-paper);color:var(--color-ink);font-family:var(--font-body);line-height:1.6;overflow-x:clip;
  background-image:radial-gradient(var(--color-dot) 1.5px,transparent 2px);background-size:20px 20px}
a{color:var(--color-ink)}
img{max-width:100%;display:block}
main{max-width:960px;margin:0 auto;padding:0 16px 48px}
:focus-visible{outline:3px solid var(--color-ink);outline-offset:3px;border-radius:8px}

/* header */
.top{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;padding:10px 16px;
  background:color-mix(in oklch,var(--color-paper) 88%,transparent);backdrop-filter:blur(8px);border-bottom:var(--line-w) solid var(--color-ink)}
.logo{display:flex;align-items:center;gap:8px;color:var(--color-ink);text-decoration:none;font-family:var(--font-display);font-weight:800;font-size:22px;letter-spacing:-.02em}
.logo img{border-radius:8px;border:2px solid var(--color-ink)}
.lang{position:relative;font-size:13px;font-weight:800}
.lang summary{list-style:none;cursor:pointer;padding:3px 12px;border-radius:999px;border:2px solid var(--color-ink);background:var(--color-shell)}
.lang summary::-webkit-details-marker{display:none}
.lang summary::after{content:" ▾"}
.lang div{position:absolute;right:0;top:calc(100% + 8px);min-width:160px;background:var(--color-shell);border:var(--line-w) solid var(--color-ink);border-radius:14px;padding:6px;box-shadow:var(--shadow);animation:rb-pop .25s var(--ease-spring)}
.lang a{display:block;padding:8px 12px;border-radius:8px;text-decoration:none;font-weight:700}
.lang a.on{background:var(--color-butter)}

/* ---------- game-UI props ---------- */
.props{position:absolute;inset:0;pointer-events:none;z-index:0}
.prop{position:absolute;animation:rb-bob var(--dur,4s) ease-in-out infinite;animation-delay:var(--delay,0s)}
.dpad{width:var(--s,72px);height:var(--s,72px)}
.dpad::before,.dpad::after{content:"";position:absolute;background:var(--c,var(--color-sky));border:var(--line-w) solid var(--color-ink);border-radius:7px}
.dpad::before{left:33%;top:0;width:34%;height:100%}
.dpad::after{top:33%;left:0;height:34%;width:100%}
.dpad i{position:absolute;left:36%;top:36%;width:28%;height:28%;background:var(--c,var(--color-sky));z-index:1}
.abxy{width:var(--s,92px);height:var(--s,92px)}
.key{position:absolute;width:36%;height:36%;border-radius:50%;border:var(--line-w) solid var(--color-ink);background:var(--c);display:flex;align-items:center;justify-content:center;
  font-family:var(--font-display);font-weight:800;font-size:15px;box-shadow:0 3px 0 var(--color-ink);animation:rb-press 3.2s ease-in-out infinite;animation-delay:var(--d,0s)}
.key.x{left:32%;top:0;--c:var(--color-mint);--d:0s}.key.y{left:0;top:32%;--c:var(--color-butter);--d:.25s}
.key.a{right:0;top:32%;--c:var(--color-pink);--d:.5s}.key.b{left:32%;bottom:0;--c:var(--color-lav);--d:.75s}
.tag{border:var(--line-w) solid var(--color-ink);border-radius:999px;padding:2px 12px;font-family:var(--font-mono);font-weight:800;font-size:12px;letter-spacing:.06em;background:var(--c,var(--color-shell));white-space:nowrap}
.coin{width:36px;height:36px;border-radius:50%;background:var(--color-butter);border:var(--line-w) solid var(--color-ink);display:flex;align-items:center;justify-content:center;font-family:var(--font-display);font-weight:800;font-size:17px}
.coin span{display:block;animation:rb-spin 3s linear infinite}
.stick{width:50px;height:50px;border-radius:50%;background:var(--color-paper-2);border:var(--line-w) solid var(--color-ink)}
.stick::after{content:"";position:absolute;inset:18%;border-radius:50%;background:var(--color-peach);border:var(--line-w) solid var(--color-ink);box-shadow:0 3px 0 var(--color-ink);animation:rb-wiggle 5s ease-in-out infinite}
.hearts{display:flex;gap:3px}
.hearts svg{width:22px;height:20px;animation:rb-beat 1.6s ease-in-out infinite}
.hearts svg:nth-child(2){animation-delay:.15s}.hearts svg:nth-child(3){animation-delay:.3s}

/* ---------- hero ---------- */
.hero{position:relative;height:340px;margin:0 -16px;text-align:center}
.hero .p1{left:16px;top:16px;--rot:-12deg;--dur:4.5s}
.hero .p2{right:14px;top:10px;--rot:10deg;--dur:5s;--delay:-1s}
.hero .p3{left:calc(50% - 60px);top:24px;--rot:-6deg;--dur:3.6s;--delay:-2s}
.hero .p4{left:22px;top:282px;--rot:-6deg;--dur:4s;--delay:-.5s}
.hero .p5{left:calc(50% - 40px);top:292px;--rot:5deg;--dur:3.8s;--delay:-1.5s}
.hero .p6{right:96px;top:282px;--rot:0deg;--dur:4.2s;--delay:-.8s}
.hero .p7{right:26px;top:284px;--rot:12deg;--dur:3.4s;--delay:-2.2s}
.hero-text{position:relative;z-index:1;padding:112px 20px 0}
.hero h1{margin:0;font-family:var(--font-display);font-weight:800;font-size:clamp(34px,10vw,56px);line-height:1.02;letter-spacing:-.035em;text-wrap:balance}
.hero h1 u{text-decoration:none;background:linear-gradient(transparent 60%,var(--color-butter) 60%)}
.hero .press{margin:14px 0 0;font-family:var(--font-mono);font-weight:800;font-size:13px;letter-spacing:.2em}
.hero .press::before{content:"▶ ";animation:rb-blink 1.1s steps(1) infinite}
.hero .sub{margin:4px 0 0;color:var(--color-muted);font-size:14px}
@media(min-width:640px){.hero{height:380px}.hero .p4,.hero .p5,.hero .p6,.hero .p7{top:320px}.hero .p1{left:12%}.hero .p2{right:12%}}

/* ---------- cards ---------- */
h2{font-family:var(--font-display);font-weight:800;font-size:22px;letter-spacing:-.02em;margin:32px 0 12px}
.today{display:grid;grid-template-columns:120px minmax(0,1fr);gap:14px;align-items:center;padding:10px;background:var(--color-shell);border:var(--line-w) solid var(--color-ink);border-radius:var(--radius);box-shadow:var(--shadow);
  text-decoration:none;position:relative;transition:transform .35s var(--ease-spring),box-shadow .35s var(--ease-spring)}
.today .th{border-radius:12px}
.today small{font-family:var(--font-mono);font-weight:800;font-size:11px;color:var(--color-muted);letter-spacing:.04em}
.today h3{margin:2px 0 8px;font-family:var(--font-display);font-weight:800;font-size:24px;line-height:1.1}
.today .new{position:absolute;right:-8px;top:-12px;--c:var(--color-butter);animation:rb-wobble 2.4s ease-in-out infinite}
@media(min-width:640px){.today{grid-template-columns:220px minmax(0,1fr)}.today h3{font-size:32px}}
.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
@media(min-width:640px){.grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(min-width:900px){.grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
.card{display:block;text-decoration:none;opacity:0;animation:rb-in .5s var(--ease-spring) forwards;animation-delay:calc(var(--i,0) * 60ms)}
.card .th{border-radius:16px;box-shadow:var(--shadow);transition:transform .35s var(--ease-spring),box-shadow .35s var(--ease-spring)}
.card h3{margin:8px 2px 0;font-family:var(--font-display);font-weight:800;font-size:17px;line-height:1.2}
.card p{margin:2px 2px 0;font-size:13px;color:var(--color-muted);line-height:1.4}
.th{aspect-ratio:1/1;border:var(--line-w) solid var(--color-ink);overflow:hidden;background:var(--color-paper-2);position:relative}
.th img{width:100%;height:100%;object-fit:cover}
@media(hover:hover){.card:hover .th,.today:hover{transform:translate(-2px,-3px) rotate(-1deg);box-shadow:7px 8px 0 var(--color-ink)}}
.card:active .th,.today:active{transform:translate(3px,3px);box-shadow:1px 1px 0 var(--color-ink);transition-duration:.08s}

/* placeholder cover (no thumb.png yet) */
.ph{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:space-between;padding:10px;text-align:left;
  background-image:radial-gradient(oklch(100% 0 0 / .45) 2px,transparent 2.5px);background-size:16px 16px}
.ph0{background-color:var(--color-sky)}.ph1{background-color:var(--color-butter)}.ph2{background-color:var(--color-mint)}
.ph3{background-color:var(--color-pink)}.ph4{background-color:var(--color-lav)}.ph5{background-color:var(--color-peach)}
.ph .d{align-self:flex-start;background:var(--color-ink);color:var(--color-shell);border-radius:999px;padding:0 9px;font-size:11px;font-weight:800}
.ph b{font-family:var(--font-display);font-weight:800;font-size:clamp(18px,6vw,30px);line-height:.95;letter-spacing:-.03em;color:var(--color-shell);-webkit-text-stroke:5px var(--color-ink);paint-order:stroke fill;word-break:break-word}

/* empty / 404 */
.empty{position:relative;z-index:1;margin-top:8px;padding:24px 20px;text-align:center}
.empty h1,.empty h2{margin:0 0 6px}
.empty p{color:var(--color-muted);margin:0 0 16px}

/* buttons */
.btn{display:inline-block;padding:11px 22px;border-radius:999px;background:var(--color-pink);color:var(--color-ink);border:var(--line-w) solid var(--color-ink);
  font-family:var(--font-display);font-weight:800;font-size:17px;text-decoration:none;text-align:center;white-space:nowrap;box-shadow:0 5px 0 var(--color-ink);
  transition:transform .3s var(--ease-spring),box-shadow .3s var(--ease-spring)}
.btn:active{transform:translateY(5px);box-shadow:0 0 0 var(--color-ink);transition-duration:.06s}
@media(hover:hover){.btn:hover{transform:translateY(-2px);box-shadow:0 7px 0 var(--color-ink)}}
.btn.ghost{background:var(--color-shell)}
.btn.sm{padding:6px 16px;font-size:16px}

/* game page */
.game{padding-top:20px}
.game h1{margin:8px 0 2px;font-family:var(--font-display);font-weight:800;font-size:clamp(30px,8vw,44px);line-height:1.05;letter-spacing:-.03em}
.game .sum{margin:0 0 16px;color:var(--color-muted)}
.daytag{display:inline-block;--c:var(--color-butter)}
.frame{position:relative;width:100%;max-width:420px;margin:0 auto;aspect-ratio:9/16;max-height:78vh;background:var(--color-paper-2);border-radius:var(--radius);overflow:hidden;border:var(--line-w) solid var(--color-ink);box-shadow:6px 6px 0 var(--color-ink)}
.frame iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin:20px 0}
/* RPG-style text window */
.txt{position:relative;background:var(--color-shell);border:var(--line-w) solid var(--color-ink);border-radius:12px;box-shadow:0 0 0 4px var(--color-shell),0 0 0 7px var(--color-ink);padding:10px 16px 14px;margin:22px 4px 0}
.txt h2{margin:0 0 2px;font-size:17px}
.txt p{margin:0}
.txt::after{content:"▼";position:absolute;right:12px;bottom:4px;font-size:11px;animation:rb-blink 1.1s steps(1) infinite}
.pn{display:flex;justify-content:space-between;gap:8px;margin-top:32px;font-size:14px;font-weight:700}

/* ads */
.ad{margin:16px 0;min-height:100px}

/* documents */
.doc{max-width:720px;margin:24px auto 0;background:var(--color-shell);border:var(--line-w) solid var(--color-ink);border-radius:var(--radius);box-shadow:var(--shadow);padding:6px 20px 20px}
.doc h1{font-family:var(--font-display);font-weight:800;font-size:30px;letter-spacing:-.02em;margin:16px 0 12px}
.doc h2{font-size:18px;margin:22px 0 6px}
.doc .meta{color:var(--color-muted);font-size:13px}

/* footer */
.foot{border-top:var(--line-w) solid var(--color-ink);background:var(--color-paper-2);padding:24px 16px 36px;text-align:center;color:var(--color-muted);font-size:13px}
.foot nav{display:flex;flex-wrap:wrap;justify-content:center;gap:6px 16px;margin-bottom:10px}
.foot a{color:var(--color-ink);text-decoration:none;font-weight:800}
.foot p{margin:4px 0}

/* ---------- motion ---------- */
@keyframes rb-bob{0%,100%{transform:translateY(0) rotate(var(--rot,0deg))}50%{transform:translateY(-8px) rotate(calc(var(--rot,0deg) + 3deg))}}
@keyframes rb-press{0%,70%,100%{transform:translateY(0);box-shadow:0 3px 0 var(--color-ink)}76%{transform:translateY(3px);box-shadow:0 0 0 var(--color-ink)}}
@keyframes rb-spin{to{transform:rotateY(360deg)}}
@keyframes rb-beat{0%,60%,100%{transform:scale(1)}30%{transform:scale(1.2)}}
@keyframes rb-blink{50%{opacity:0}}
@keyframes rb-wiggle{0%,100%{transform:translate(0,0)}25%{transform:translate(4px,-2px)}50%{transform:translate(-3px,3px)}75%{transform:translate(2px,2px)}}
@keyframes rb-wobble{0%,100%{transform:rotate(6deg)}50%{transform:rotate(-4deg) scale(1.06)}}
@keyframes rb-in{from{opacity:0;transform:translateY(16px) scale(.94)}to{opacity:1;transform:none}}
@keyframes rb-pop{from{opacity:0;transform:scale(.9) translateY(-6px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important}
  .card{opacity:1}
}