/* ローマ字タイピング競技 紹介ページ
   デザイントークン・起動オーバーレイは ../../assets/portal.css を継承する。
   ここではスクロールページ固有のレイアウトと演出のみ定義する。 */

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body.about-body { overflow-x: hidden; overflow-y: auto; }
body.about-body.lesson-open { overflow: hidden; }

.about-main { position: relative; }

b { font-weight: 1000; }

/* ---------- 共通部品 ---------- */
.about-kicker {
  display: inline-block; width: fit-content; padding: 6px 10px;
  color: var(--white); background: var(--black); border: 3px solid var(--green-deep);
  font-size: .74rem; font-weight: 1000; letter-spacing: .08em; line-height: 1;
}
.about-kicker--green { color: var(--black); background: var(--green); border-color: var(--black); }

.cta-launch {
  display: inline-grid; justify-items: center; gap: 3px;
  min-height: 64px; padding: 12px 34px;
  color: var(--black); background: var(--green); border: 5px solid var(--black);
  box-shadow: 9px 9px 0 var(--green-deep);
  font-size: 1.3rem; font-weight: 1000; line-height: 1.1;
  transform: rotate(-1deg); transition: .16s;
}
.cta-launch small { font-size: .68rem; font-weight: 1000; letter-spacing: .06em; }
.cta-launch:hover, .cta-launch:focus-visible {
  outline: none; background: var(--yellow);
  box-shadow: 13px 13px 0 var(--green); transform: translate(-3px, -3px) rotate(0deg);
}
body.is-phone .cta-launch { color: #58635d; background: var(--gray); box-shadow: 5px 5px 0 var(--shadow); transform: none; }

.phone-note {
  display: none; width: fit-content; margin: 14px auto 0; padding: 9px 12px;
  color: var(--black); background: var(--yellow); border: 4px solid var(--black);
  font-size: .8rem; font-weight: 1000;
}
body.is-phone .phone-note { display: block; }
.hero .phone-note { margin: 14px 0 0; }

/* ---------- 出現アニメーション（JS 無効時は最初から表示） ---------- */
html.js [data-reveal] { opacity: 0; translate: 0 38px; transition: opacity .65s cubic-bezier(.16,1,.3,1), translate .65s cubic-bezier(.16,1,.3,1); }
html.js [data-reveal].is-in { opacity: 1; translate: 0 0; }
.reason-num { transform: rotate(-3deg); }
html.js [data-reveal] .reason-num { transform: rotate(-3deg) scale(1.5); opacity: 0; transition: .5s cubic-bezier(.16,1,.3,1) .12s; }
html.js [data-reveal].is-in .reason-num { transform: rotate(-3deg) scale(1); opacity: 1; }
.stat-bar-fill { width: var(--pct); }
html.js .stat-bar-fill { width: 0; transition: width 1s cubic-bezier(.2,.85,.3,1) .25s; }
html.js [data-reveal].is-in .stat-bar-fill { width: var(--pct); }
html:not(.js) [data-sprite-frame] { display: none; }

/* ---------- 操作バー ---------- */
.about-topbar {
  position: fixed; inset: 0 0 auto 0; z-index: 900;
  display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 12px;
  min-height: 54px; padding: 7px max(14px, env(safe-area-inset-right)) 7px max(14px, env(safe-area-inset-left));
  background: var(--black); border-bottom: 4px solid var(--green);
  translate: 0 -110%; transition: translate .25s ease;
}
.about-topbar.is-visible { translate: 0 0; }
.topbar-brand { color: var(--mint); font-size: .66rem; font-weight: 1000; letter-spacing: .1em; text-decoration: none; line-height: 1.15; }
.topbar-brand b { display: block; color: var(--white); font-size: .82rem; }
.topbar-brand:hover, .topbar-brand:focus-visible { color: var(--green); outline: none; }
.topbar-title { color: var(--white); font-size: .92rem; font-weight: 1000; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.topbar-launch {
  min-height: 38px; padding: 6px 16px; color: var(--black); background: var(--green);
  border: 3px solid var(--black); box-shadow: 4px 4px 0 var(--green-deep); font-size: .82rem; font-weight: 1000; transition: .14s;
}
.topbar-launch:hover, .topbar-launch:focus-visible { outline: none; background: var(--yellow); box-shadow: 6px 6px 0 var(--green); transform: translate(-2px, -2px); }
body.is-phone .topbar-launch { color: #58635d; background: var(--gray); box-shadow: none; }

/* ---------- HERO ---------- */
.hero {
  position: relative; display: grid; align-content: center;
  min-height: 100vh; min-height: 100dvh;
  padding: clamp(28px, 6vh, 72px) clamp(16px, 5vw, 64px) 90px;
}
.hero-inner {
  display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  gap: clamp(24px, 4vw, 56px); align-items: center;
  width: min(1240px, 100%); margin: 0 auto;
}
.hero-kickers { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 18px; }
.hero-title {
  margin: 0; color: var(--white);
  font-size: clamp(3.2rem, 8.4vw, 7rem); font-weight: 1000; line-height: 1.04;
  text-shadow: 6px 6px 0 var(--green-deep);
  animation: hero-slam .6s cubic-bezier(.16,1,.3,1) both;
}
@keyframes hero-slam {
  from { opacity: 0; transform: translateZ(600px) scale(1.7) rotate(-4deg); filter: blur(6px); }
  70% { opacity: 1; transform: scale(.97); filter: none; }
  to { transform: scale(1); }
}
.hero-lead { margin: 20px 0 0; max-width: 34em; color: #d9efe2; font-size: clamp(.95rem, 1.5vw, 1.08rem); font-weight: 900; line-height: 1.95; }
.hero-stats { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.hero-stat {
  display: grid; gap: 2px; min-width: 128px; padding: 10px 14px;
  color: var(--ink); background: var(--paper); border: 4px solid var(--black);
  box-shadow: 6px 6px 0 var(--shadow); transform: skewX(-5deg);
}
.hero-stat > * { transform: skewX(5deg); }
.hero-stat strong { font-size: 1.7rem; font-weight: 1000; line-height: 1; }
.hero-stat > span { color: var(--green-deep); font-size: .68rem; font-weight: 1000; }
.hero-stats-note { margin: 10px 0 0; color: var(--gray); font-size: .7rem; font-weight: 900; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; margin-top: 26px; }
.cta-more {
  min-height: 46px; display: inline-grid; place-items: center; padding: 8px 18px;
  color: var(--black); background: var(--yellow); border: 4px solid var(--black);
  box-shadow: 6px 6px 0 var(--shadow); font-size: .92rem; font-weight: 1000; text-decoration: none; transition: .14s;
}
.cta-more:hover, .cta-more:focus-visible { outline: none; box-shadow: 9px 9px 0 var(--green); transform: translate(-3px, -3px); }

.hero-visual { position: relative; min-width: 0; }
.shot-frame {
  margin: 0; background: #061014; border: 6px solid var(--black);
  box-shadow: 16px 16px 0 var(--green-deep); transform: rotate(1.6deg);
}
.shot-frame img { display: block; width: 100%; height: auto; }
.float-chip {
  position: absolute; z-index: 2; padding: 8px 12px;
  border: 4px solid var(--black); font-size: .82rem; font-weight: 1000;
  box-shadow: 6px 6px 0 var(--shadow);
}
.float-chip--achieve { top: -16px; right: 4%; color: var(--black); background: var(--mint); transform: rotate(2deg); }
.float-chip--rank { right: -8px; bottom: 26%; color: var(--black); background: var(--yellow); font-size: 1.05rem; transform: rotate(-4deg); }
.hero-runner { position: absolute; left: -14px; bottom: -34px; z-index: 2; width: clamp(110px, 12vw, 150px); filter: drop-shadow(4px 6px 0 rgba(0,0,0,.5)); }
.hero-runner canvas { display: block; width: 100%; height: auto; }

.hero-scroll-hint {
  position: absolute; left: 50%; bottom: 18px; translate: -50% 0;
  display: grid; justify-items: center; gap: 2px;
  color: var(--mint); font-size: .66rem; font-weight: 1000; letter-spacing: .3em; text-decoration: none;
}
.hero-scroll-hint span { animation: hint-bounce 1.6s ease-in-out infinite; }
@keyframes hint-bounce { 0%, 100% { translate: 0 0; } 50% { translate: 0 7px; } }

/* ---------- ティッカー ---------- */
.ticker {
  overflow: hidden; padding: 12px 0; background: var(--green);
  border-block: 5px solid var(--black); transform: rotate(-1.1deg) scale(1.02);
}
.ticker-track { display: flex; width: max-content; animation: ticker-scroll 26s linear infinite; }
.ticker-track span { white-space: nowrap; color: var(--black); font-size: 1.05rem; font-weight: 1000; letter-spacing: .12em; }
@keyframes ticker-scroll { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ---------- REASON セクション ---------- */
.reason, .survey, .spec { padding: clamp(64px, 11vh, 128px) clamp(16px, 5vw, 64px); }
.reason--alt { background: linear-gradient(112deg, rgba(20, 232, 120, .07), transparent 52%); }
.reason-inner { width: min(1160px, 100%); margin: 0 auto; }
.reason-head { display: flex; align-items: center; gap: clamp(14px, 2.6vw, 26px); margin-bottom: clamp(26px, 4vh, 44px); }
.reason-head > div { display: grid; gap: 10px; justify-items: start; }
.reason-num {
  display: inline-block; padding: .02em .22em;
  color: var(--black); background: var(--green); border: 5px solid var(--black);
  box-shadow: 9px 9px 0 rgba(0, 0, 0, .45);
  font-size: clamp(2.6rem, 6vw, 4.6rem); font-weight: 1000; line-height: 1.1;
}
.reason-title { margin: 0; color: var(--white); font-size: clamp(1.9rem, 4.6vw, 3.4rem); font-weight: 1000; line-height: 1.14; text-shadow: 4px 4px 0 var(--green-deep); }
.reason-title em { font-style: normal; color: var(--green); }
.reason-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: clamp(24px, 4vw, 52px); align-items: start; }
.reason--alt .reason-grid { direction: rtl; }
.reason--alt .reason-grid > * { direction: ltr; }
.reason-text > p { margin: 0 0 16px; color: #d9efe2; font-size: clamp(.94rem, 1.4vw, 1.04rem); font-weight: 900; line-height: 2; }

.stat-bars { display: grid; gap: 12px; margin: 22px 0; }
.stat-bar { display: grid; grid-template-columns: minmax(0, 1fr) auto; grid-template-rows: auto auto; gap: 4px 14px; align-items: center; }
.stat-bar-label { grid-column: 1; grid-row: 1; color: var(--mint); font-size: .78rem; font-weight: 1000; }
.stat-bar-track { grid-column: 1; grid-row: 2; }
.stat-bar strong { grid-column: 2; grid-row: 1 / 3; align-self: center; min-width: 3.6em; color: var(--white); font-size: 1.55rem; font-weight: 1000; text-align: right; text-shadow: 3px 3px 0 var(--green-deep); }
.stat-bar-track { display: block; height: 18px; background: rgba(0, 0, 0, .55); border: 3px solid var(--green-deep); box-shadow: 4px 4px 0 rgba(0, 0, 0, .4); }
.stat-bar-fill { display: block; height: 100%; background: linear-gradient(90deg, var(--green-deep), var(--green)); }

.quote-chip {
  margin: 24px 0 0; padding: 16px 18px; color: var(--ink); background: var(--paper);
  border: 4px solid var(--black); box-shadow: 8px 8px 0 var(--shadow); transform: rotate(-.8deg);
}
.quote-chip p { margin: 0; font-size: .95rem; font-weight: 1000; line-height: 1.8; }
.quote-chip cite { display: block; margin-top: 10px; color: var(--green-deep); font-size: .7rem; font-style: normal; font-weight: 1000; }

.reason-visual { display: grid; gap: 14px; min-width: 0; }
.visual-caption { margin: 0; color: var(--gray); font-size: .74rem; font-weight: 1000; }

.shot-zoom {
  aspect-ratio: 5 / 4; background-image: url("../../../assets/previews/typing.jpg");
  background-size: 210%; background-position: 30% 62%;
  border: 6px solid var(--black); box-shadow: 14px 14px 0 var(--green-deep); transform: rotate(-1.2deg);
}

.recover-stage { display: grid; gap: 10px; justify-items: center; padding: 20px 16px 14px; background: var(--black-soft); border: 5px solid var(--black); outline: 4px solid var(--green-deep); box-shadow: 12px 12px 0 rgba(0, 0, 0, .45); }
.recover-stage canvas { display: block; width: min(300px, 82%); height: auto; }
[data-sprite-frame].is-unavailable { display: none; }
.chip-stack { display: grid; gap: 10px; justify-items: start; }
.game-chip { padding: 9px 13px; border: 4px solid var(--black); box-shadow: 5px 5px 0 var(--shadow); font-size: .9rem; font-weight: 1000; }
.game-chip--help { color: var(--black); background: var(--yellow); transform: rotate(-1.5deg); }
.game-chip--miss { color: var(--white); background: var(--red); transform: rotate(1.2deg); }

.stage-ladder { display: grid; gap: 8px; margin: 0; padding: 0; list-style: none; counter-reset: stage; }
.stage-ladder li {
  display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 10px;
  padding: 11px 14px; color: var(--ink); background: var(--paper);
  border: 4px solid var(--black); box-shadow: 6px 6px 0 var(--shadow);
}
.stage-ladder li:nth-child(2) { margin-left: 6%; }
.stage-ladder li:nth-child(3) { margin-left: 12%; }
.stage-ladder li:nth-child(4) { margin-left: 18%; }
.stage-ladder li:nth-child(5) { margin-left: 24%; background: linear-gradient(100deg, rgba(20, 232, 120, .3), transparent 45%), var(--paper); }
.stage-ladder b { font-size: 1.02rem; font-weight: 1000; }
.stage-ladder span { padding: 4px 8px; color: var(--white); background: var(--black); border-left: 5px solid var(--green); font-size: .66rem; font-weight: 1000; }

.rank-row { display: flex; align-items: flex-end; gap: 6px; margin-top: 18px; }
.rank-block {
  flex: 1; display: grid; justify-items: center; gap: 2px; padding: 10px 4px 8px;
  color: var(--white); background: var(--black-soft); border: 4px solid var(--black);
  box-shadow: 5px 5px 0 rgba(0, 0, 0, .4); font-size: 1.3rem; font-weight: 1000;
}
.rank-block small { color: var(--mint); font-size: .58rem; font-weight: 1000; }
.rank-block:nth-child(2) { padding-block: 13px 11px; }
.rank-block:nth-child(3) { padding-block: 16px 14px; }
.rank-block:nth-child(4) { padding-block: 19px 17px; }
.rank-block:nth-child(5) { padding-block: 22px 20px; }
.rank-block--god { padding-block: 27px 25px; color: var(--black); background: var(--yellow); font-size: 1.65rem; transform: rotate(-2deg); }
.rank-block--god small { color: var(--black); }

.chat-mock { background: var(--black); border: 5px solid var(--black); outline: 4px solid var(--green-deep); box-shadow: 12px 12px 0 rgba(0, 0, 0, .45); }
.chat-mock-head { display: flex; align-items: center; gap: 10px; padding: 10px 12px; color: var(--ink); background: var(--paper); border-bottom: 4px solid var(--black); font-size: 1rem; font-weight: 1000; }
.chat-mock-head span { padding: 4px 8px; color: var(--white); background: var(--black); font-size: .68rem; font-weight: 1000; }
.chat-mock-body { display: grid; gap: 14px; padding: 16px 14px 20px; }
.chat-line { display: grid; gap: 4px; justify-items: start; }
.chat-line--self { justify-items: end; }
.chat-name { color: var(--mint); font-size: .7rem; font-weight: 1000; }
.chat-bubble {
  padding: 8px 12px; color: var(--ink); background: var(--paper);
  border: 3px solid var(--black); box-shadow: 4px 4px 0 rgba(0, 0, 0, .5);
  font-size: .86rem; font-weight: 1000;
}
.chat-bubble--miss { color: var(--white); background: var(--red); }
.chat-bubble--self { color: var(--black); background: var(--mint); }

/* ---------- SURVEY ---------- */
.survey { background: linear-gradient(112deg, rgba(20, 232, 120, .09), transparent 50%); }
.survey-intro { margin: -10px 0 26px; color: #d9efe2; font-size: clamp(.96rem, 1.5vw, 1.1rem); font-weight: 1000; }
.survey-wall { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.survey-tile {
  display: grid; gap: 8px; align-content: start; padding: 18px 16px;
  color: var(--ink); background: var(--paper); border: 5px solid var(--black);
  box-shadow: 8px 8px 0 var(--shadow);
}
.survey-tile:nth-child(odd) { transform: rotate(-.6deg); }
.survey-tile:nth-child(even) { transform: rotate(.6deg); }
.survey-tile strong { font-size: clamp(2.3rem, 4vw, 3.2rem); font-weight: 1000; line-height: 1; text-shadow: 3px 3px 0 var(--green); }
.survey-tile > span { color: #29362f; font-size: .8rem; font-weight: 1000; line-height: 1.5; }

.before-after { display: grid; grid-template-columns: minmax(0, 1fr) auto minmax(0, 1.2fr); gap: 14px; align-items: stretch; margin-top: 22px; }
.ba-block { padding: 16px 18px; border: 5px solid var(--black); box-shadow: 8px 8px 0 var(--shadow); }
.ba-block--before { color: var(--white); background: var(--black-soft); }
.ba-block--after { color: var(--ink); background: linear-gradient(100deg, rgba(20, 232, 120, .3), transparent 50%), var(--paper); }
.ba-label { display: inline-block; margin-bottom: 8px; padding: 4px 9px; color: var(--white); background: var(--green-deep); font-size: .66rem; font-weight: 1000; letter-spacing: .12em; }
.ba-block strong { display: block; font-size: 2rem; font-weight: 1000; line-height: 1.1; }
.ba-block--before strong { text-shadow: 3px 3px 0 var(--green-deep); }
.ba-block p { margin: 4px 0 0; font-size: .8rem; font-weight: 1000; line-height: 1.55; }
.ba-block--before p { color: var(--mint); }
.ba-second { margin-top: 12px; }
.ba-arrow { align-self: center; color: var(--green); font-size: 2rem; text-shadow: 3px 3px 0 var(--green-deep); }
.survey-method { margin: 24px 0 0; padding: 12px 14px; color: var(--gray); background: rgba(0, 0, 0, .5); border-left: 6px solid var(--green-deep); font-size: .74rem; font-weight: 900; line-height: 1.7; }

/* ---------- SPEC ---------- */
.spec-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin: 0; }
.spec-chip { padding: 14px 16px; color: var(--ink); background: var(--paper); border: 4px solid var(--black); box-shadow: 7px 7px 0 var(--shadow); }
.spec-chip dt { width: fit-content; padding: 4px 8px; color: var(--white); background: var(--green-deep); font-size: .68rem; font-weight: 1000; }
.spec-chip dd { margin: 8px 0 0; font-size: 1.06rem; font-weight: 1000; line-height: 1.4; }
.spec-chip small { display: block; margin-top: 4px; color: var(--green-deep); font-size: .68rem; font-weight: 1000; }

/* ---------- FINAL CTA ---------- */
.final-cta { padding: clamp(80px, 14vh, 150px) clamp(16px, 5vw, 64px); text-align: center; }
.final-title {
  margin: 0 0 34px; color: var(--white);
  font-size: clamp(2.6rem, 7vw, 5.4rem); font-weight: 1000; line-height: 1.12;
  text-shadow: 5px 5px 0 var(--green-deep);
}
.cta-launch--big { min-height: 84px; padding: 16px 56px; font-size: 1.7rem; }
.final-note { margin: 22px 0 0; color: var(--gray); font-size: .76rem; font-weight: 900; }
.final-back { display: inline-block; margin-top: 14px; color: var(--mint); font-size: .84rem; font-weight: 1000; text-decoration: underline; text-underline-offset: 4px; }
.final-back:hover, .final-back:focus-visible { color: var(--green); outline: none; }

/* ---------- フッター ---------- */
.about-footer {
  display: flex; flex-wrap: wrap; gap: 8px 22px; justify-content: center;
  padding: 20px 16px calc(20px + env(safe-area-inset-bottom));
  background: var(--black); border-top: 4px solid var(--green);
  color: var(--gray); font-size: .72rem; font-weight: 900;
}
.about-footer a { color: var(--mint); font-weight: 1000; }
.about-footer a:hover, .about-footer a:focus-visible { color: var(--green); }

/* ---------- レスポンシブ ---------- */
@media (max-width: 980px) {
  .hero { padding-bottom: 70px; }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { width: min(560px, 100%); margin: 0 auto; }
  .reason-grid { grid-template-columns: 1fr; }
  .reason--alt .reason-grid { direction: ltr; }
  .survey-wall { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .spec-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .before-after { grid-template-columns: 1fr; }
  .ba-arrow { justify-self: center; rotate: 90deg; }
}
@media (max-width: 560px) {
  .topbar-title { display: none; }
  .about-topbar { grid-template-columns: minmax(0, 1fr) auto; }
  .hero { padding-top: 40px; }
  .hero-stat { min-width: 104px; padding: 8px 10px; }
  .hero-stat strong { font-size: 1.4rem; }
  .cta-launch { width: 100%; }
  .hero-runner { left: -6px; bottom: -26px; }
  .float-chip--rank { right: -4px; }
  .survey-wall, .spec-grid { grid-template-columns: 1fr; }
  .stat-bar { grid-template-columns: minmax(0, 1fr); grid-template-rows: auto auto auto; }
  .stat-bar-track { grid-row: 3; }
  .stat-bar strong { grid-column: 1; grid-row: 2; text-align: left; }
  .rank-row { flex-wrap: wrap; }
  .rank-block { min-width: 28%; }
}