/* ===== tokens ===== */
:root {
  --paper: #fbf4e4;
  --paper-2: #f1e6cc;
  --white: #fffdf7;
  --ink: #1a1814;
  --ink-2: #4a453b;
  --yel: #ffd21f;
  --yel-deep: #f2b400;
  --blue: #2747f5;
  --coral: #ff5a45;
  --mint: #3cc48c;
  --col: 480px;
  --bd: 2.5px solid var(--ink);
  --sh: 4px 4px 0 var(--ink);
  --sh-lg: 7px 7px 0 var(--ink);
  --f-disp: "Dela Gothic One", "Zen Maru Gothic", sans-serif;
  --f-body: "Zen Maru Gothic", "Hiragino Maru Gothic ProN", sans-serif;
  --f-dot: "DotGothic16", "Zen Maru Gothic", monospace;
  --pop: cubic-bezier(.2, 1.4, .4, 1);
  --glide: cubic-bezier(.16, .84, .3, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 70px; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--f-body);
  font-weight: 500;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
  background-color: var(--yel);
  background-image: radial-gradient(rgba(26, 24, 20, .16) 1.6px, transparent 1.8px);
  background-size: 14px 14px;
  overflow-x: hidden;
}
h1, h2, h3, p, ul, ol, dl, dd, figure, fieldset { margin: 0; padding: 0; }
ul, ol { list-style: none; }
fieldset { border: 0; min-width: 0; }
a { color: inherit; text-decoration: none; }
em { font-style: normal; }
button, input, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 3px; }

/* ===== stage (中央カラム) ===== */
.stage {
  position: relative;
  width: min(100%, var(--col));
  margin: 0 auto;
  background: var(--paper);
  border-inline: 3px solid var(--ink);
  box-shadow: 14px 0 0 rgba(26, 24, 20, .12), -14px 0 0 rgba(26, 24, 20, .12);
  overflow: clip;
}
@media (max-width: 486px) { .stage { border-inline: 0; box-shadow: none; } }

/* ===== logo ===== */
.logo { display: inline-flex; align-items: center; font-family: var(--f-disp); font-size: 19px; line-height: 1; letter-spacing: .02em; white-space: nowrap; }
.logo__a { padding: 6px 5px 7px 8px; background: var(--ink); color: var(--white); border-radius: 7px 0 0 7px; }
.logo__b { padding: 6px 8px 7px 6px; background: var(--yel); border: var(--bd); border-left: 0; border-radius: 0 7px 7px 0; margin: -2.5px 0; transform: rotate(-2deg); transform-origin: left center; }
.logo--lg { font-size: 34px; }
.logo--xs { font-size: 13px; }
.logo--inline { font-size: .92em; vertical-align: .08em; margin-right: .2em; }
.sec--yel .logo__b, .contact .logo__b { background: var(--white); }

/* ===== header ===== */
.hd {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; gap: 10px;
  padding: 10px 14px 12px;
  background: var(--paper);
  border-bottom: var(--bd);
}
.hd__lv { margin-left: auto; font-family: var(--f-dot); font-size: 13px; padding: 1px 8px; background: var(--ink); color: var(--yel); border-radius: 4px; }
.hd__cta { font-weight: 900; font-size: 13px; padding: 6px 14px; background: var(--blue); color: #fff; border: var(--bd); border-radius: 9px; box-shadow: 3px 3px 0 var(--ink); transition: transform .18s var(--pop), box-shadow .18s; }
.hd__cta:hover { transform: translate(2px, 2px); box-shadow: 1px 1px 0 var(--ink); }
.hd__bar { position: absolute; left: 0; right: 0; bottom: 0; height: 4px; background: var(--paper-2); }
.hd__bar i { display: block; height: 100%; width: 0; background: repeating-linear-gradient(90deg, var(--blue) 0 8px, #5d76ff 8px 10px); transition: width .2s linear; }
@media (min-width: 1120px) { .hd__lv { display: none; } .hd__cta { margin-left: auto; } }

/* ===== marquee ===== */
.tags, .ticker { overflow: hidden; border-bottom: var(--bd); }
.tags { padding: 10px 0; background: var(--paper-2); }
.tags__row, .ticker__row { display: flex; width: max-content; animation: slide 34s linear infinite; }
.tags__row li { margin-right: 8px; padding: 2px 12px; font-size: 12.5px; font-weight: 700; background: var(--white); border: 2px solid var(--ink); border-radius: 6px; white-space: nowrap; }
.tags__row li:nth-child(3n) { background: var(--yel); }
.tags__row li:nth-child(4n) { transform: rotate(-2deg); }
.ticker { background: var(--ink); color: var(--yel); padding: 9px 0; border-top: var(--bd); }
.ticker__row { animation-duration: 22s; }
.ticker__row li { font-family: var(--f-disp); font-size: 15px; white-space: nowrap; padding-right: 18px; }
.ticker__row li::after { content: "★"; margin-left: 18px; color: var(--coral); }
@keyframes slide { to { transform: translateX(-50%); } }

/* ===== buttons ===== */
.btn {
  position: relative; display: grid; grid-template-columns: 1fr auto; align-items: center; column-gap: 12px;
  width: 100%; padding: 13px 18px 14px 24px;
  background: var(--blue); color: #fff;
  border: var(--bd); border-radius: 16px; box-shadow: var(--sh-lg);
  cursor: pointer; text-align: left;
  transition: transform .2s var(--pop), box-shadow .2s var(--glide);
}
.btn small { grid-column: 1; font-family: var(--f-dot); font-size: 12px; line-height: 1.4; color: var(--yel); }
.btn span { grid-column: 1; font-family: var(--f-disp); font-size: 19px; line-height: 1.35; }
.btn__arw { grid-column: 2; grid-row: 1 / span 2; width: 42px; height: 42px; border-radius: 50%; background: var(--yel); border: var(--bd); position: relative; transition: transform .25s var(--pop); }
.btn__arw::before { content: ""; position: absolute; inset: 0; margin: auto; width: 11px; height: 11px; border-top: 3.5px solid var(--ink); border-right: 3.5px solid var(--ink); transform: translateX(-2px) rotate(45deg); }
.btn:hover { transform: translate(4px, 4px); box-shadow: 3px 3px 0 var(--ink); }
.btn:hover .btn__arw { transform: translateX(4px) rotate(-8deg); }
.btn--ink { background: var(--ink); }
.btn--sm { padding: 10px 12px 11px 16px; border-radius: 13px; box-shadow: var(--sh); }
.btn--sm span { font-size: 14px; }
.btn--sm .btn__arw { width: 30px; height: 30px; grid-row: 1; }
.btn--sm .btn__arw::before { width: 8px; height: 8px; border-width: 3px; }

/* ===== game window ===== */
.win { background: var(--white); border: var(--bd); border-radius: 12px; box-shadow: var(--sh); overflow: hidden; }
.win__bar { display: flex; justify-content: space-between; gap: 8px; padding: 4px 12px; background: var(--ink); color: var(--yel); font-family: var(--f-dot); font-size: 12.5px; }
.win__bar span:last-child { color: var(--white); opacity: .8; }
.win__msg { padding: 8px 12px 10px; font-family: var(--f-dot); font-size: 13.5px; border-top: 2px dashed var(--ink); }
.caret { display: inline-block; width: 0; height: 0; margin-left: 6px; border: 5px solid transparent; border-top: 7px solid var(--ink); border-bottom: 0; animation: bob 1s steps(2) infinite; }
@keyframes bob { 50% { transform: translateY(3px); } }

/* ===== chips / inline emphasis ===== */
.chip { display: inline-block; padding: 3px 12px 4px; font-family: var(--f-disp); font-size: 15px; border: var(--bd); border-radius: 8px; }
.chip--ink { background: var(--ink); color: var(--white); transform: rotate(-2deg); }
.chip--yel { background: var(--yel); transform: rotate(1.5deg); box-shadow: 3px 3px 0 var(--ink); }
.blk { display: inline-block; padding: 0 .16em .04em; background: var(--yel); border: var(--bd); border-radius: .16em; box-shadow: var(--sh); transform: rotate(-2.5deg); }
.blue { color: var(--blue); }
.yel { color: var(--yel); }
.mk { background: linear-gradient(transparent 58%, var(--yel) 58%); }

/* ===== sections ===== */
.sec { position: relative; padding: 68px 22px 76px; border-bottom: var(--bd); }
.sec--grid { background-color: var(--paper); background-image: linear-gradient(rgba(26, 24, 20, .07) 1px, transparent 1px), linear-gradient(90deg, rgba(26, 24, 20, .07) 1px, transparent 1px); background-size: 22px 22px; }
.sec--paper { background: var(--paper); }
.sec--ink { background-color: var(--ink); color: var(--white); background-image: radial-gradient(rgba(255, 253, 247, .1) 1.4px, transparent 1.6px); background-size: 16px 16px; }
.sec--yel { background-color: var(--yel); background-image: repeating-linear-gradient(-45deg, rgba(26, 24, 20, .05) 0 10px, transparent 10px 20px); }
.sec--blue { background-color: var(--blue); color: #fff; background-image: linear-gradient(rgba(255, 255, 255, .09) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .09) 1px, transparent 1px); background-size: 22px 22px; }

.sec-head { margin-bottom: 30px; }
.kicker { display: inline-block; margin-bottom: 12px; padding: 1px 10px; font-family: var(--f-dot); font-size: 12.5px; letter-spacing: .06em; background: var(--ink); color: var(--yel); border-radius: 4px; transform: rotate(-1.5deg); }
.sec--ink .kicker, .sec--blue .kicker { background: var(--yel); color: var(--ink); }
.sec-head h2 { font-family: var(--f-disp); font-weight: 400; font-size: clamp(27px, 7.6vw, 35px); line-height: 1.42; letter-spacing: .01em; }
.sec-head h2 small { font-family: var(--f-body); font-weight: 700; font-size: .46em; }
.sec-head__sub { margin-top: 14px; font-size: 14px; font-weight: 700; line-height: 1.8; }

/* ===== character ===== */
.gachi { width: 150px; aspect-ratio: 200 / 260; }
.gachi svg { display: block; width: 100%; height: 100%; overflow: visible; }
.gachi--sm { width: 96px; }
.gachi .g-fist { transform-origin: 70px 146px; animation: pump 1.5s var(--pop) infinite; }
.gachi .g-all { transform-origin: 100px 240px; animation: sway 3.4s ease-in-out infinite; }
@keyframes pump { 0%, 60%, 100% { transform: rotate(0); } 30% { transform: rotate(-11deg); } }
@keyframes sway { 50% { transform: rotate(1.6deg) translateY(-2px); } }

/* ===== reveal ===== */
.js .rv { opacity: 0; transform: translateY(22px) rotate(-.6deg); transition: opacity .5s var(--glide) var(--d, 0s), transform .65s var(--pop) var(--d, 0s); }
.js .rv.is-in { opacity: 1; transform: none; }
/* ファーストビューはJSの監視を待たずに、読み込みと同時に順番に出す */
.js .hero .rv { animation: rvin .7s var(--pop) var(--d, 0s) forwards; }
@keyframes rvin { to { opacity: 1; transform: none; } }

/* ===== PC side panels ===== */
.side { display: none; }
@media (min-width: 1120px) {
  .side { position: fixed; top: 0; bottom: 0; z-index: 5; display: grid; place-items: center; width: calc((100vw - var(--col)) / 2); }
  .side--l { left: 0; }
  .side--r { right: 0; }
  .side__inner { width: 250px; text-align: center; }
  .side__lead { margin-top: 16px; font-weight: 700; font-size: 14px; line-height: 1.7; }
  .side__lead b { font-family: var(--f-disp); font-weight: 400; font-size: 20px; }
  .buddy { position: relative; width: 170px; margin: 10px auto 0; }
  .buddy .gachi { width: 170px; }
  .buddy__lv { position: absolute; right: -72px; top: 6px; padding: 2px 10px 4px; font-family: var(--f-dot); background: var(--white); border: var(--bd); border-radius: 10px; box-shadow: var(--sh); transform: rotate(6deg); }
  .buddy__lv b { font-size: 26px; font-weight: 400; }
  .exp { display: flex; align-items: center; gap: 8px; margin-top: 4px; font-family: var(--f-dot); font-size: 12px; }
  .exp__bar { flex: 1; height: 14px; background: var(--white); border: var(--bd); border-radius: 4px; overflow: hidden; }
  .exp__bar i { display: block; height: 100%; width: 0; background: repeating-linear-gradient(90deg, var(--blue) 0 9px, #5d76ff 9px 11px); transition: width .2s linear; }
  .side__hint { margin: 6px 0 18px; font-family: var(--f-dot); font-size: 12px; }

  .quest { width: 250px; padding: 0 0 12px; background: var(--white); border: var(--bd); border-radius: 12px; box-shadow: var(--sh-lg); transform: rotate(1.2deg); overflow: hidden; }
  .quest__ttl { padding: 5px 14px; background: var(--ink); color: var(--yel); font-family: var(--f-dot); font-size: 13px; }
  .quest__list { padding: 10px 14px 0; }
  .quest__list a { position: relative; display: block; padding: 4px 0 4px 26px; font-size: 13px; font-weight: 700; line-height: 1.5; color: var(--ink-2); transition: color .2s, transform .25s var(--pop); }
  .quest__list a::before { content: ""; position: absolute; left: 0; top: 7px; width: 14px; height: 14px; border: 2px solid var(--ink); border-radius: 3px; background: var(--white); }
  .quest__list a.is-done { color: var(--ink); }
  .quest__list a.is-done::before { background: var(--yel); }
  .quest__list a.is-done::after { content: ""; position: absolute; left: 4px; top: 8px; width: 5px; height: 9px; border-right: 2.5px solid var(--ink); border-bottom: 2.5px solid var(--ink); transform: rotate(40deg); }
  .quest__list a.is-now { color: var(--blue); transform: translateX(5px); }
  .quest__list a.is-now::before { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(39, 71, 245, .2); }
  .quest__list a:hover { color: var(--blue); }
}

/* ===== footer ===== */
.ft { padding: 40px 22px 44px; background: var(--ink); color: var(--white); text-align: center; }
.ft .logo__a { background: var(--white); color: var(--ink); }
.ft__co { margin-top: 16px; font-weight: 700; font-size: 13px; }
.ft__note { margin-top: 12px; font-size: 11px; line-height: 1.7; opacity: .65; }
.ft__c { margin-top: 14px; font-family: var(--f-dot); font-size: 11px; opacity: .6; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .js .rv { opacity: 1; transform: none; }
}