/* 敵のアジトを叩け！ LP ― 昭和〜平成初期の特撮番組の調子(赤・黒・黄) */
:root {
  --red: #e0162b;
  --red-dk: #8f0716;
  --yellow: #ffd400;
  --yellow-dk: #e0a800;
  --black: #0b0b0d;
  --ink: #16161a;
  --white: #fff;
  --muted: #c9c9cf;
  --head: 'Dela Gothic One', 'Hiragino Kaku Gothic StdN', 'Yu Gothic', sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--black); color: var(--white);
  font-family: 'Hiragino Kaku Gothic ProN', 'Yu Gothic', 'Meiryo', system-ui, sans-serif;
  line-height: 1.8; -webkit-text-size-adjust: 100%; overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }

/* ---------- 共通: 太いタイトル文字 ---------- */
.title {
  margin: 0; font-family: var(--head); font-weight: 400; line-height: 1.05; letter-spacing: .02em;
  color: var(--yellow);
  -webkit-text-stroke: 2px var(--red-dk); paint-order: stroke fill;
  text-shadow: 4px 4px 0 var(--red), 8px 8px 0 #000;
  transform: skewX(-8deg); transform-origin: left bottom;
}
.title-sm { display: block; font-size: .55em; color: var(--white); text-shadow: 3px 3px 0 var(--red), 6px 6px 0 #000; }

/* ---------- プレイボタン ---------- */
.btn-play {
  position: relative; display: inline-flex; flex-direction: column; align-items: center; gap: 2px;
  padding: 18px 34px 14px; min-width: min(100%, 360px);
  background: linear-gradient(180deg, #ffe55c 0%, var(--yellow) 45%, var(--yellow-dk) 100%);
  color: var(--black); text-decoration: none; border: 3px solid #000;
  clip-path: polygon(14px 0, 100% 0, calc(100% - 14px) 100%, 0 100%);
  box-shadow: 0 6px 0 var(--red-dk);
  transition: transform .12s, filter .12s;
  overflow: hidden;
}
.btn-play::after { /* 光が走る */
  content: ''; position: absolute; top: 0; bottom: 0; width: 40%; left: -60%;
  background: linear-gradient(100deg, transparent, rgba(255,255,255,.75), transparent);
  transform: skewX(-20deg); animation: shine 2.8s ease-in-out infinite;
}
.btn-play:hover { filter: brightness(1.08); transform: translateY(-2px); }
.btn-play:active { transform: translateY(2px); }
.btn-play:focus-visible { outline: 4px solid var(--white); outline-offset: 4px; }
.btn-play-main { font-family: var(--head); font-size: clamp(20px, 5.4vw, 28px); line-height: 1.3; letter-spacing: .04em; }
.btn-play-main::after { content: ' ▶'; color: var(--red); }
.btn-play-note { font-size: 13px; font-weight: 700; }
@keyframes shine { 0%, 55% { left: -60%; } 100% { left: 130%; } }

/* ---------- 放射状の光(特撮の爆発) ---------- */
.hero-rays {
  position: absolute; inset: -40%; pointer-events: none;
  background: repeating-conic-gradient(from 0deg at 50% 50%, rgba(255,212,0,.13) 0 6deg, transparent 6deg 18deg);
  animation: spin 60s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- 1. ファーストビュー ---------- */
.hero {
  position: relative; overflow: hidden; isolation: isolate;
  background:
    linear-gradient(180deg, rgba(11,11,13,.35) 0%, rgba(11,11,13,.2) 50%, var(--black) 100%),
    radial-gradient(ellipse at 70% 45%, rgba(224,22,43,.55), transparent 60%),
    url('img/bg-blast.webp') center / cover no-repeat, var(--red-dk);
}
.hero .hero-rays { z-index: -1; }
.hero-inner {
  max-width: 1180px; margin: 0 auto; padding: 40px 16px 72px;
  display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 24px;
}
.hero-catch {
  margin: 0 0 14px; display: inline-flex; flex-wrap: wrap; gap: 0 .3em;
  font-family: var(--head); font-size: clamp(20px, 3.2vw, 34px); line-height: 1.3;
  background: var(--red); padding: 6px 18px; transform: skewX(-12deg); border-left: 8px solid var(--yellow);
  box-shadow: 6px 6px 0 #000;
}
.hero-catch span { display: inline-block; transform: skewX(12deg); }
.hero .title { font-size: clamp(56px, 9vw, 118px); }
.hero-sub {
  margin: 18px 0 26px; font-weight: 900; font-size: clamp(17px, 2.2vw, 22px);
  letter-spacing: .08em; text-shadow: 0 2px 6px #000;
}
.badges { list-style: none; margin: 18px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.badges li {
  font-size: 13px; font-weight: 800; padding: 3px 12px; border: 2px solid var(--yellow); color: var(--yellow);
  background: rgba(0,0,0,.6); transform: skewX(-10deg);
}
.hero-visual { position: relative; min-height: 600px; align-self: stretch; }
.hero-rx {
  position: absolute; right: 4%; bottom: -10px; width: auto; height: 100%; max-height: 640px;
  filter: drop-shadow(0 0 28px rgba(255,80,40,.65)) drop-shadow(8px 10px 0 rgba(0,0,0,.6));
}
.tv.hero-tv { position: absolute; left: -4%; bottom: 2%; width: 60%; transform: rotate(-4deg); z-index: 1; }

/* ブラウン管テレビ風の枠 */
.tv { margin: 0; position: relative; background: #000; border: 4px solid #000; border-radius: 10px; overflow: hidden;
  box-shadow: 0 0 0 3px var(--yellow), 8px 8px 0 3px var(--red); }
.tv img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.tv::after { /* 走査線 */
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background: repeating-linear-gradient(0deg, rgba(0,0,0,.18) 0 1px, transparent 1px 3px);
}
.tv figcaption {
  position: absolute; left: 8px; top: 8px; z-index: 1; font-size: 11px; font-weight: 800;
  background: var(--red); padding: 0 8px; letter-spacing: .1em;
}

/* 黄黒の斜めライン(危険表示) */
.stripe {
  position: absolute; left: 0; right: 0; bottom: 0; height: 22px;
  background: repeating-linear-gradient(-45deg, var(--yellow) 0 22px, #000 22px 44px);
}

/* ---------- 見出し ---------- */
section { position: relative; padding: 72px 16px; }
.sec-title {
  max-width: 1080px; margin: 0 auto 36px; font-family: var(--head); font-weight: 400;
  font-size: clamp(32px, 6vw, 56px); line-height: 1.1; color: var(--white);
  display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap;
  text-shadow: 4px 4px 0 var(--red);
}
.sec-title span {
  font-size: .42em; color: var(--black); background: var(--yellow); padding: 2px 12px; letter-spacing: .15em;
  transform: skewX(-12deg); text-shadow: none;
}

/* ---------- 2. ストーリー ---------- */
.story { background: linear-gradient(170deg, #1a0306 0%, var(--black) 60%); }
.story-list { list-style: none; margin: 0 auto; padding: 0; max-width: 1080px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.story-item { position: relative; background: var(--ink); border-left: 6px solid var(--red); }
.story-item img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.story-item p { margin: 0; padding: 14px 18px 18px; font-weight: 700; font-size: 16px; }
.story-item b { color: var(--yellow); }
.story-item .unison { display: block; color: #ff3a4a; font-family: var(--head); font-weight: 400; font-size: 34px; letter-spacing: .12em; text-shadow: 0 0 16px rgba(255,40,60,.7); }
.narration {
  max-width: 820px; margin: 48px auto 0; text-align: center; font-weight: 800;
  font-size: clamp(18px, 3vw, 24px); line-height: 2;
}
.narration strong { display: inline-block; margin-top: 10px; font-family: var(--head); font-weight: 400; font-size: 1.5em; color: var(--yellow); text-shadow: 3px 3px 0 var(--red); }

/* ---------- 3. アクション ---------- */
.action {
  background:
    repeating-linear-gradient(-60deg, rgba(255,255,255,.03) 0 2px, transparent 2px 26px),
    linear-gradient(180deg, var(--black), #19191e);
}
.action-grid { max-width: 1080px; margin: 0 auto; display: grid; grid-template-columns: repeat(2, 1fr); gap: 40px 32px; }
.act h3 { margin: 22px 0 6px; font-family: var(--head); font-weight: 400; font-size: 26px; color: var(--yellow); }
.act p { margin: 0 0 8px; color: var(--muted); }
.keys { font-size: 14px; color: var(--white) !important; }
kbd {
  display: inline-block; min-width: 1.9em; padding: 0 .4em; margin: 0 2px; text-align: center;
  font: 800 13px/1.7 system-ui, sans-serif; color: var(--black); background: var(--white);
  border-radius: 4px; box-shadow: 0 3px 0 #888;
}
.boss {
  max-width: 1080px; margin: 72px auto 0; display: grid; grid-template-columns: 1.2fr 1fr; gap: 36px; align-items: center;
  background: linear-gradient(110deg, var(--red-dk) 0 55%, transparent 55%); padding: 28px; border: 3px solid var(--red);
}
.boss-tv { transform: rotate(-2deg); }
.boss h3 { margin: 0 0 12px; font-family: var(--head); font-weight: 400; font-size: clamp(26px, 3.6vw, 36px); line-height: 1.3; }
.boss em { font-style: normal; color: var(--yellow); }
.boss p { margin: 0; color: var(--muted); }
.boss b { color: var(--white); }
.kv { max-width: 1080px; margin: 64px auto 0; transform: skewY(-2deg); border: 4px solid var(--yellow); box-shadow: 10px 10px 0 var(--red); overflow: hidden; }
.kv img { width: 100%; transform: skewY(2deg) scale(1.06); }

/* ---------- 4. 遊び方 ---------- */
.guide { background: var(--ink); }
.guide-points { list-style: none; margin: 0 auto 44px; padding: 0; max-width: 1080px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.guide-points li { background: var(--red); padding: 22px 20px; clip-path: polygon(0 0, 100% 0, calc(100% - 16px) 100%, 0 100%); }
.guide-points strong { display: block; font-family: var(--head); font-weight: 400; font-size: 26px; color: var(--yellow); text-shadow: 2px 2px 0 #000; }
.guide-points span { font-weight: 700; font-size: 15px; }
.guide-devices { max-width: 1080px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.device { border: 2px solid #333; padding: 22px 22px 18px; background: var(--black); }
.device h3 { margin: 0 0 4px; font-family: var(--head); font-weight: 400; font-size: 24px; border-bottom: 3px solid var(--red); padding-bottom: 6px; }
.device > p { margin: 8px 0 12px; color: var(--muted); }
.key-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.key-table th { text-align: left; font-weight: 800; color: var(--yellow); padding: 6px 10px 6px 0; white-space: nowrap; vertical-align: top; }
.key-table td { padding: 6px 0; border-bottom: 1px solid #2a2a30; }
.key-table tr:last-child td { border-bottom: 0; }
.pad-list { margin: 0; padding-left: 1.2em; font-size: 14px; line-height: 2.4; }
.pad {
  display: inline-block; margin: 0 4px 0 0; padding: 0 10px; line-height: 1.9; border-radius: 999px;
  background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.4); font-weight: 800; font-size: 13px;
}
.note { margin: 12px 0 0; font-size: 13px; color: var(--muted); }

/* ---------- 5. プレイ開始 ---------- */
.final {
  overflow: hidden; isolation: isolate; text-align: center; padding: 96px 16px 104px;
  background: radial-gradient(ellipse at 50% 60%, var(--red) 0%, var(--red-dk) 45%, var(--black) 100%);
}
.final .hero-rays { z-index: -1; }
.final-catch { margin: 0 0 8px; font-weight: 900; font-size: clamp(17px, 2.6vw, 22px); text-shadow: 0 2px 6px #000; }
.title-final { display: inline-block; font-size: clamp(44px, 9vw, 96px); margin-bottom: 36px; transform-origin: center; }
.btn-play-xl { min-width: min(100%, 460px); padding: 24px 40px 18px; }
.btn-play-xl .btn-play-main { font-size: clamp(22px, 6vw, 34px); }

.foot { text-align: center; padding: 28px 16px 96px; font-size: 13px; color: var(--muted); border-top: 6px solid var(--red); }
.foot a { color: var(--yellow); }
.foot p { margin: 6px 0 0; }

/* スマホ用の下に固定するボタン */
.sticky-play {
  position: fixed; left: 12px; right: 12px; bottom: calc(12px + env(safe-area-inset-bottom)); z-index: 20;
  display: none; text-align: center; padding: 14px; text-decoration: none;
  font-family: var(--head); font-size: 20px; color: var(--black); background: var(--yellow);
  border: 3px solid #000; box-shadow: 0 5px 0 var(--red-dk);
  transform: translateY(160%); transition: transform .25s;
}
.sticky-play.show { transform: none; }

/* ---------- スマホ ---------- */
@media (max-width: 820px) {
  .hero-inner { grid-template-columns: 1fr; padding: 24px 16px 64px; gap: 8px; text-align: center; }
  .hero-copy { order: 2; position: relative; z-index: 1; margin-top: -40px; }
  .hero-catch { justify-content: center; }
  .hero .title { transform-origin: center; font-size: clamp(50px, 15vw, 84px); }
  .badges { justify-content: center; }
  .btn-play { width: 100%; padding-left: 16px; padding-right: 16px; }
  .hero-visual { order: 1; min-height: 0; height: min(92vw, 440px); }
  .hero-rx { right: 50%; transform: translateX(62%); height: 100%; }
  .tv.hero-tv { width: 56%; left: 0; bottom: 6%; }
  .story-list, .action-grid, .guide-devices, .guide-points { grid-template-columns: 1fr; }
  .boss { grid-template-columns: 1fr; background: linear-gradient(170deg, var(--red-dk) 0 45%, transparent 45%); padding: 18px; gap: 20px; }
  section { padding: 56px 16px; }
  .sticky-play { display: block; }
}
@media (prefers-reduced-motion: reduce) {
  .hero-rays, .btn-play::after { animation: none; }
  html { scroll-behavior: auto; }
}