@charset "UTF-8";

/* =========================================================
   DVD革命 / common.css
   設計指針：モノクロ・余白・線・タイポで情報差をつける。
   装飾・影・濃いグラデーション・絵文字は使わない。
========================================================= */

/* ---- Design Tokens ---- */
:root {
  /* Brand */
  --ink:        #1a2853; /* Main : Navy（旧 #000000） */
  --ink-deep:   #0f1a3e; /* hover時の濃い navy */
  --accent:     #4566cd; /* Sub : Blue */
  --accent-deep:#3b59c0; /* hover時の濃い blue */
  --logo-teal:    #30ada9; /* ロゴアクセント：ティール */
  --logo-yellow:  #f3ae1e; /* ロゴアクセント：イエロー */

  /* Mono Palette */
  --graphite: #1a1a1a;
  --body:     #333333;
  --stone:    #666666;
  --ash:      #999999;
  --fog:      #cccccc;
  --mist:     #e6e6e6;
  --haze:     #f1ede5; /* layered warm off-white（thin） */
  --paper:    #ffffff;

  /* Typography */
  --font-jp: "Yu Gothic", "游ゴシック", "Hiragino Sans", "Noto Sans JP", system-ui, sans-serif;
  --font-en: "Jost", "Yu Gothic", "Hiragino Sans", sans-serif;

  /* Sizing scale (16/24/40/64/96/160) */
  --sp-1: 16px;
  --sp-2: 24px;
  --sp-3: 40px;
  --sp-4: 64px;
  --sp-5: 96px;
  --sp-6: 160px;

  /* Layout */
  --container: 1680px;
  --gutter: clamp(24px, 5vw, 96px);

  /* Motion */
  --ease: cubic-bezier(.2,.6,.2,1);
}

/* ---- Reset ---- */
*,*::before,*::after { box-sizing: border-box; }
html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  font-size: 16px;
}
body {
  margin: 0;
  font-family: var(--font-jp);
  font-weight: 300;
  font-size: 16px;
  line-height: 1.85;
  letter-spacing: .02em;
  color: var(--body);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; background: none; border: 0; padding: 0; color: inherit; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1,h2,h3,h4,h5,h6 { margin: 0; font-weight: 500; line-height: 1.4; letter-spacing: .06em; color: var(--ink); }
p { margin: 0; }

/* ---- Custom cursor ---- */
.cursor-dot {
  position: fixed;
  top: 0;
  left: 0;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #fff;
  mix-blend-mode: difference;
  pointer-events: none;
  z-index: 9999;
  transition: width .25s var(--ease), height .25s var(--ease), opacity .2s var(--ease);
  will-change: transform;
}
.cursor-dot.is-hover {
  width: 44px;
  height: 44px;
}
.cursor-dot.is-hidden { opacity: 0; }
html.has-cursor,
html.has-cursor * { cursor: none; }
@media (hover: none), (pointer: coarse) {
  .cursor-dot { display: none; }
  html.has-cursor,
  html.has-cursor * { cursor: auto; }
}

/* ---- Utilities ---- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}
.eyebrow {
  font-family: var(--font-en);
  font-weight: 400;
  font-size: 22px;
  line-height: 1;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--stone);
  display: inline-block;
}
.eyebrow::before {
  content: "";
  display: inline-block;
  width: 24px;
  height: 1px;
  background: var(--ink);
  vertical-align: middle;
  margin-right: 12px;
  transform: translateY(-2px);
}
.section-title {
  font-size: clamp(24px, 3.4vw, 50px);
  letter-spacing: .06em;
  margin-top: 16px;
}
.section-title .num {
  font-family: var(--font-en);
  font-weight: 300;
  color: var(--ash);
  margin-right: 12px;
  font-size: .8em;
}

/* ---- Button ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 16px 28px;
  font-size: 14px;
  letter-spacing: .12em;
  font-weight: 500;
  border-radius: 2px;
  transition: transform .3s var(--ease), background .3s var(--ease), color .3s var(--ease);
  white-space: nowrap;
}
.btn--primary {
  background: var(--ink);
  color: var(--paper);
}
.btn--primary:hover { background: var(--ink-deep); transform: translateY(-2px); }
.btn--secondary {
  background: var(--accent);
  color: var(--paper);
  border: 1px solid var(--accent);
}
.btn--secondary:hover { background: var(--accent-deep); border-color: var(--accent-deep); transform: translateY(-2px); }
.btn .arrow {
  display: inline-block;
  width: 16px;
  height: 1px;
  background: currentColor;
  position: relative;
}
.btn .arrow::after {
  content: "";
  position: absolute;
  right: 0; top: -3px;
  width: 7px; height: 7px;
  border-top: 1px solid currentColor;
  border-right: 1px solid currentColor;
  transform: rotate(45deg);
}

/* ---- Tag / Notice ---- */
.tag {
  display: inline-block;
  padding: 4px 10px;
  border: 1px solid var(--ink);
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--ink);
  background: var(--paper);
}

/* ============================
   Header
============================ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255,255,255,.85);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease), background .3s var(--ease);
}
.site-header.is-scrolled { border-bottom-color: var(--mist); }

.site-header__inner {
  max-width: none;
  margin: 0;
  padding: 14px 4vw;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.site-logo { display: inline-block; line-height: 0; }
.site-logo svg, .site-logo img { height: 36px; width: auto; }

.gnav { display: flex; align-items: center; gap: 32px; }
.gnav__list {
  display: flex;
  gap: 28px;
  align-items: center;
}
.gnav__link {
  font-size: 16px;
  letter-spacing: .08em;
  font-weight: 500;
  color: var(--graphite);
  position: relative;
  padding: 8px 0;
  transition: color .2s var(--ease);
}
.gnav__link:hover { color: var(--ink); }
.gnav__link::after {
  content: "";
  position: absolute;
  left: 0; bottom: 4px;
  width: 0;
  height: 1px;
  background: var(--ink);
  transition: width .3s var(--ease);
}
.gnav__link:hover::after { width: 100%; }

/* ---- Dropdown (吹き出し) ---- */
.gnav__item { position: relative; }
.gnav__dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  padding-top: 16px;
  opacity: 0;
  visibility: hidden;
  transform: translateX(-50%) translateY(6px);
  transition: opacity .25s var(--ease), transform .25s var(--ease);
  z-index: 200;
}
.gnav__item--dropdown:hover .gnav__dropdown,
.gnav__item--dropdown:focus-within .gnav__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.gnav__dropdown-inner {
  position: relative;
  background: var(--paper);
  border-radius: 14px;
  box-shadow: 0 14px 40px rgba(15,26,62,.12);
  padding: 14px;
  min-width: 240px;
}
/* 吹き出しの三角（上向き） */
.gnav__dropdown-inner::before {
  content: "";
  position: absolute;
  top: -7px;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 14px;
  height: 14px;
  background: var(--paper);
  border-radius: 3px 0 0 0;
}
.gnav__dropdown-inner ul {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.gnav__dropdown-inner a {
  display: block;
  padding: 11px 16px;
  font-size: 15px;
  letter-spacing: .04em;
  color: var(--body);
  border-radius: 8px;
  white-space: nowrap;
  transition: background .2s var(--ease), color .2s var(--ease);
}
.gnav__dropdown-inner a:hover {
  background: var(--haze);
  color: var(--ink);
}
.gnav__cta { display: flex; gap: 10px; align-items: center; }

/* Pill-shaped header CTAs (with arrow in circle) */
.gnav__cta .btn {
  position: relative;
  padding: 10px 56px 10px 24px;
  font-size: 13px;
  letter-spacing: .08em;
  border-radius: 999px;
  gap: 0;
}
.gnav__cta .btn .arrow {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid currentColor;
  background: transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.gnav__cta .btn .arrow::before {
  content: "";
  width: 9px;
  height: 9px;
  border-top: 1px solid currentColor;
  border-right: 1px solid currentColor;
  transform: rotate(45deg) translate(-1px,1px);
}
.gnav__cta .btn .arrow::after { display: none; }
.gnav__cta .btn--primary { background: var(--ink); color: var(--paper); border: 1px solid var(--ink); }
.gnav__cta .btn--primary .arrow { border-color: rgba(255,255,255,.6); }
.gnav__cta .btn--primary:hover { background: var(--ink-deep); border-color: var(--ink-deep); }
.gnav__cta .btn--secondary { background: var(--accent); color: var(--paper); border: 1px solid var(--accent); }
.gnav__cta .btn--secondary .arrow { border-color: rgba(255,255,255,.6); }
.gnav__cta .btn--secondary:hover { background: var(--accent-deep); border-color: var(--accent-deep); }

/* Hamburger as round pill button */
.menu-toggle {
  display: none;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--ink);
  position: relative;
  flex-shrink: 0;
}
.menu-toggle span {
  position: absolute;
  left: 50%;
  width: 18px;
  height: 1.5px;
  background: var(--paper);
  margin-left: -9px;
  transition: transform .3s var(--ease), opacity .3s var(--ease);
}
.menu-toggle span:nth-child(1) { top: 20px; }
.menu-toggle span:nth-child(2) { top: 26px; }
.menu-toggle span:nth-child(3) { display: none; }
.menu-toggle.is-open span:nth-child(1) { transform: translateY(3px) rotate(45deg); }
.menu-toggle.is-open span:nth-child(2) { transform: translateY(-3px) rotate(-45deg); }

@media (max-width: 959px){
  .menu-toggle { display: block; }
  .gnav {
    position: fixed;
    inset: 0 0 0 auto;
    width: min(360px, 90vw);
    background: var(--paper);
    border-left: 1px solid var(--mist);
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    padding: 96px 32px 32px;
    transform: translateX(100%);
    transition: transform .4s var(--ease);
  }
  .gnav.is-open { transform: translateX(0); }
  .gnav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }
  .gnav__link {
    padding: 18px 0;
    font-size: 15px;
    border-bottom: 1px solid var(--mist);
  }
  .gnav__link::after { display: none; }
  /* モバイルではドロップダウンをインライン展開 */
  .gnav__dropdown {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    padding-top: 0;
  }
  .gnav__dropdown-inner {
    box-shadow: none;
    border-radius: 0;
    padding: 4px 0 12px 12px;
    min-width: 0;
  }
  .gnav__dropdown-inner::before { display: none; }
  .gnav__dropdown-inner a {
    padding: 10px 0;
    color: var(--stone);
    white-space: normal;
  }
  .gnav__cta {
    margin-top: 24px;
    flex-direction: column;
    align-items: stretch;
  }
  .gnav__cta .btn { width: 100%; }
}

/* ============================
   Footer
============================ */
.site-footer {
  background: var(--ink);
  color: var(--paper);
  padding: 96px 0 32px;
  margin-top: 0;
  position: relative;
  overflow: hidden;
}
.site-footer::before {
  content: "DVD KAKUMEI";
  position: absolute;
  bottom: -32px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-en);
  font-size: clamp(80px, 18vw, 240px);
  font-weight: 300;
  letter-spacing: .04em;
  color: var(--paper);
  opacity: .04;
  white-space: nowrap;
  pointer-events: none;
}
.site-footer__core {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
  position: relative;
}
.footer-core {
  border-bottom: 1px solid #2a2a2a;
  padding-bottom: 64px;
  margin-bottom: 48px;
}
.footer-core__eyebrow {
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: .24em;
  color: var(--ash);
}
.footer-core__title {
  color: var(--paper);
  font-size: clamp(24px, 3vw, 36px);
  margin-top: 16px;
  letter-spacing: .04em;
  line-height: 1.5;
}
.footer-cols {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 48px;
  margin-bottom: 64px;
}
@media (max-width: 767px){
  .footer-cols { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-cols > .footer-col:first-child { grid-column: 1 / -1; }
}
.footer-col__title {
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: .24em;
  color: var(--ash);
  margin-bottom: 20px;
  text-transform: uppercase;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col a {
  font-size: 13px;
  color: #ddd;
  transition: color .2s var(--ease);
}
.footer-col a:hover { color: var(--paper); }
.footer-brand-logo { margin-bottom: 24px; }
.footer-brand-logo svg, .footer-brand-logo img { height: 32px; filter: invert(1) brightness(2); }
.footer-brand-desc {
  font-size: 12px;
  color: var(--ash);
  line-height: 1.9;
  max-width: 320px;
}
.footer-privacy {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 24px 28px;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 12px;
  margin-bottom: 40px;
}
.footer-privacy__mark {
  width: 80px;
  height: 80px;
  flex-shrink: 0;
  background: #fff;
  border-radius: 8px;
  padding: 8px;
}
.footer-privacy__text {
  font-size: 13px;
  line-height: 1.9;
  color: #ddd;
}
.footer-privacy__text a {
  color: #8aa3ee;
  margin-left: 6px;
  white-space: nowrap;
  transition: color .2s var(--ease);
}
.footer-privacy__text a:hover { color: var(--paper); }
@media (max-width: 599px){
  .footer-privacy { flex-direction: column; align-items: flex-start; gap: 16px; }
}
.footer-related {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  padding-bottom: 32px;
  margin-bottom: 32px;
  border-bottom: 1px solid #2a2a2a;
}
.footer-related a {
  font-size: 13px;
  color: #ddd;
  transition: color .2s var(--ease);
}
.footer-related a:hover { color: var(--paper); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 11px;
  color: var(--stone);
  letter-spacing: .08em;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-bottom__legal { display: flex; gap: 20px; }
.footer-bottom__legal a:hover { color: var(--paper); }

/* ============================
   Floating CTA (mobile)
============================ */
.floating-cta {
  display: none;
}
@media (max-width: 767px){
  .floating-cta {
    display: grid;
    grid-template-columns: 1fr 1fr;
    position: fixed;
    left: 0; right: 0; bottom: 0;
    z-index: 90;
    border-top: 1px solid var(--mist);
    background: rgba(255,255,255,.95);
    backdrop-filter: blur(8px);
  }
  .floating-cta a {
    text-align: center;
    padding: 14px 8px;
    font-size: 12px;
    font-weight: 500;
    letter-spacing: .12em;
  }
  .floating-cta a:first-child {
    background: var(--ink);
    color: var(--paper);
  }
  .floating-cta a:last-child {
    color: var(--ink);
    border-left: 1px solid var(--mist);
  }
  body { padding-bottom: 50px; }
}

/* ============================
   Reveal animation
============================ */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .9s var(--ease), transform .9s var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}
.reveal.delay-1 { transition-delay: .1s; }
.reveal.delay-2 { transition-delay: .2s; }
.reveal.delay-3 { transition-delay: .3s; }
.reveal.delay-4 { transition-delay: .4s; }
.reveal.delay-5 { transition-delay: .5s; }