/*
Theme Name: DD Theme
Version: 2.0.0
Description: 株式会社DD コーポレートサイト — Dark Creative Redesign
*/

/* =====================================================
   Custom Properties
===================================================== */
:root {
  --bg:        #0a0a0a;
  --bg-2:      #111111;
  --bg-3:      #181818;
  --surface:   #141414;
  --text:      #f0f0f0;
  --text-muted:#888888;
  --accent:    #c8ff00;
  --accent-2:  #ff3cac;
  --border:    rgba(255,255,255,0.08);
  --radius:    2px;
  --ease:      cubic-bezier(0.16,1,0.3,1);
}

/* =====================================================
   Reset & Base
===================================================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: auto; overflow-x: clip; /* bodyではなくhtmlに移動: clipはスクロールコンテナを作らずstickyを壊さない */ }
body {
  font-family: 'Inter', 'Noto Sans JP', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow: visible; /* htmlでclip済み。bodyにoverflowを設定するとstickyが壊れる */
  cursor: none;
}
a { color: inherit; text-decoration: none; cursor: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* =====================================================
   Custom Cursor
===================================================== */
#dd-cursor-ring {
  position: fixed;
  top: 0; left: 0;
  width: 40px; height: 40px;
  border: 1.5px solid rgba(200,255,0,0.7);
  border-radius: 50%;
  pointer-events: none;
  z-index: 99999;
  transform: translate(-50%,-50%);
  transition: width 0.3s var(--ease), height 0.3s var(--ease),
              border-color 0.3s, background 0.3s;
  mix-blend-mode: difference;
}
#dd-cursor-dot {
  position: fixed;
  top: 0; left: 0;
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
  pointer-events: none;
  z-index: 99999;
  transform: translate(-50%,-50%);
}
body.cursor-hover #dd-cursor-ring {
  width: 64px; height: 64px;
  background: rgba(200,255,0,0.06);
  border-color: var(--accent);
}
@media (hover: none) {
  #dd-cursor-ring, #dd-cursor-dot { display: none; }
  body { cursor: auto; }
  a, button { cursor: pointer; }
}

/* =====================================================
   Noise Grain Overlay
===================================================== */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-size: 256px;
}

/* =====================================================
   Typography
===================================================== */
.label {
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.display {
  font-family: 'Inter', sans-serif;
  font-weight: 900;
  line-height: 0.92;
  letter-spacing: -0.03em;
}

/* =====================================================
   Layout
===================================================== */
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}
section {
  position: relative;
  overflow: hidden;
}
/* sticky要素を使うセクションはoverflow:visibleが必須 */
section.services {
  overflow: visible;
}

/* =====================================================
   Header
===================================================== */
.site-header {
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  z-index: 1000;
  padding: 28px 0;
  mix-blend-mode: difference;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}
.site-logo {
  font-family: 'Inter', sans-serif;
  font-weight: 900;
  font-size: 1.1rem;
  letter-spacing: 0.05em;
  color: #fff;
}
.site-logo em {
  font-style: normal;
  color: var(--accent);
}
.global-nav ul {
  display: flex;
  gap: 2.5rem;
}
.global-nav a {
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #fff;
  position: relative;
  transition: opacity 0.2s;
}
.global-nav a::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0;
  width: 0; height: 1px;
  background: var(--accent);
  transition: width 0.3s var(--ease);
}
.global-nav a:hover::after { width: 100%; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: none;
  background: none;
  border: none;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 22px; height: 1px;
  background: #fff;
  transition: all 0.3s;
}
.hamburger.active span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* Mobile nav */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 999;
  align-items: flex-start;
  justify-content: center;
  flex-direction: column;
  padding: 100px 48px 60px;
  gap: 0;
}
.mobile-nav.open { display: flex; }

/* トップレベルリンク共通 */
.mobile-nav > a,
.mobile-nav-item {
  width: 100%;
  border-bottom: 1px solid var(--border, rgba(255,255,255,0.08));
}
.mobile-nav > a,
.mobile-nav-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 22px 0;
  font-family: 'Inter', sans-serif;
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text);
  text-decoration: none;
  transition: color 0.2s;
}
.mobile-nav > a:hover,
.mobile-nav-toggle:hover { color: var(--accent); }
.mobile-nav > a:first-child { border-top: 1px solid var(--border, rgba(255,255,255,0.08)); }
.nav-overlay { display: none; }

/* =====================================================
   HERO KV — junni風パネルめくれ構造
===================================================== */

/* 外側: 100vh（wheelトリガーなので余分なスクロール量不要） */
.hero-kv-outer {
  height: 100vh;
  background: var(--bg);
}

/* 内側: 通常配置 */
.hero-kv-sticky {
  position: relative;
  height: 100vh;
  overflow: hidden;
  background: var(--bg);
  perspective: 1000px;
  transform-style: preserve-3d;
}

/* ヒーローテキストレイヤー（パネルより上 / z-index: 10） */
.kv-layer-hero {
  position: absolute;
  inset: 0;
  z-index: 10;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding-bottom: 8vh;
}
/* スマホ: テキストを縦中央寄りに（上余白を解消） */
@media (max-width: 768px) {
  .kv-layer-hero {
    justify-content: center;
    padding-bottom: 0;
    padding-top: 14vw; /* ヘッダー分を考慮 */
  }
  .hero-inner {
    width: 92%;
  }
  .hero-title {
    font-size: clamp(3.2rem, 18vw, 5rem);
  }
  .hero-bottom {
    margin-top: 4vh;
  }
}
.kv-layer-hero::after {
  content: '';
  position: absolute;
  left: 5%;
  top: 0; bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, transparent, var(--border) 20%, var(--border) 80%, transparent);
  pointer-events: none;
}

/* ミッションオーバーレイ（ライム背景 / z-index: 10 / パネルめくれ後に表示） */
.kv-layer-about {
  position: absolute;
  inset: 0;
  z-index: 10;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
}
.kv-layer-about.is-visible {
  pointer-events: auto;
}
.kv-about-inner {
  text-align: center;
  padding: 0 8%;
}
.kv-about-eyebrow {
  color: rgba(0,0,0,0.5);
  margin-bottom: 1.5rem;
}
.kv-about-mission {
  font-size: clamp(3.5rem, 11vw, 10rem);
  line-height: 0.88;
  letter-spacing: -0.04em;
  color: var(--bg);
}
.kv-about-mission em {
  font-style: normal;
  color: var(--bg);
}
.kv-about-desc {
  font-size: clamp(0.9rem, 1.5vw, 1.1rem);
  color: rgba(0,0,0,0.65);
  line-height: 1.8;
  margin-top: 2rem;
}
.kv-about-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 2.5rem;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--bg);
  border-bottom: 1px solid currentColor;
  padding-bottom: 4px;
  transition: opacity 0.2s;
}
.kv-about-cta:hover { opacity: 0.6; }

/* ─── KV Panels — junni準拠 rotateX 実装 ─── */
#kv-panels {
  position: absolute;
  inset: 0;
  z-index: 5;
  display: grid;
  grid-template-columns: repeat(var(--cols, 6), 1fr);
  grid-template-rows: repeat(var(--rows, 6), 1fr);
  /* 初期: 小さな gap（フリップ後に JS で 0 に） */
  gap: min(3px, 0.19vw);
  transform-style: preserve-3d;
  /* ホバー: フリップ前は pointer-events 無効 */
  pointer-events: none;
}
#kv-panels.is-flipped {
  pointer-events: auto;
}

/* ─── 個別パネル ─────────────────────────── */
.kv-panel {
  position: relative;
  transform-style: preserve-3d;
  /* GSAP が rotateX をコントロール */
}

/* ─── 表/裏 共通 ─────────────────────────── */
.kv-panel-front,
.kv-panel-back {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: min(10px, 0.625vw); /* フリップ後 JS で 0 に */
  overflow: hidden;
}

/* 表面: ダーク（初期表示） */
.kv-panel-front {
  background: var(--bg);
  transform: rotateX(360deg); /* = 0deg 相当、表示 */
}

/* 裏面: ライム（フリップ後に表示） */
.kv-panel-back {
  background: var(--accent);
  transform: rotateX(180deg); /* 初期: 非表示 */
}

/* ─── ホバー CSS keyframe（junni完全再現） ─── */
.kv-panel[data-hover="true"] .kv-panel-front {
  animation: kv-rotate-front 1s linear forwards;
}
.kv-panel[data-hover="true"] .kv-panel-back {
  animation: kv-rotate-back 1s linear forwards;
}

@keyframes kv-rotate-front {
  0%   { transform: rotateX(360deg); }
  22%  { transform: rotateX(180deg); }
  47%  { transform: rotateX(-40deg); }
  80%  { transform: rotateX(10deg);  }
  100% { transform: rotateX(0deg);   }
}

@keyframes kv-rotate-back {
  0%   { transform: rotateX(180deg);  }
  22%  { transform: rotateX(0deg);    }
  47%  { transform: rotateX(-220deg); }
  80%  { transform: rotateX(-170deg); }
  100% { transform: rotateX(-180deg); }
}

.hero-inner {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

.hero-label {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 3vh;
}
.hero-label::before {
  content: '';
  width: 40px; height: 1px;
  background: var(--accent);
}

.hero-title {
  font-family: 'Inter', sans-serif;
  font-weight: 900;
  font-size: clamp(4rem, 12vw, 13rem);
  line-height: 0.88;
  letter-spacing: -0.04em;
  color: var(--text);
  overflow: hidden;
}
.hero-title .line {
  display: block;
  overflow: hidden;
}
.hero-title .line span {
  display: block;
  transform: translateY(110%);
  /* GSAPで animate in */
}
.hero-title .accent-word {
  color: transparent;
  -webkit-text-stroke: 1px rgba(255,255,255,0.3);
}

.hero-bottom {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-top: 5vh;
  gap: 2rem;
}
.hero-desc {
  font-size: clamp(0.85rem, 1.5vw, 1rem);
  color: var(--text-muted);
  line-height: 1.8;
  max-width: 360px;
}
.hero-scroll {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.hero-scroll-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: scrollLine 1.8s ease-in-out infinite;
}
@keyframes scrollLine {
  0%   { transform: scaleY(0); transform-origin: top; }
  50%  { transform: scaleY(1); transform-origin: top; }
  51%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* =====================================================
   Section共通
===================================================== */
.section-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 80px;
  gap: 2rem;
}
.section-head--inline {
  justify-content: flex-start;
  margin-bottom: 32px;
  gap: 1.5rem;
}
.section-number {
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.15em;
  margin-top: 0.3rem;
}
.section-title-wrap h2 {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: clamp(2.5rem, 6vw, 5rem);
  line-height: 1;
  letter-spacing: -0.03em;
}

/* reveal animation class */
.reveal {
  opacity: 0;
  transform: translateY(40px);
}

/* =====================================================
   SERVICE
===================================================== */
.services {
  padding: 120px 0 0;
  background: var(--bg);
  border-top: 1px solid var(--border);
}

/* =====================================================
   事業内容 — Sticky Stack
===================================================== */
.biz-head {
  padding: 100px 0 60px;
}
.biz-section-title {
  font-family: 'Inter', sans-serif;
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  margin-top: 12px;
}
#biz-stack {
  position: relative;
  overflow: visible !important;
  padding-bottom: 0;
}
.biz-card {
  position: sticky;
  height: 100vh;        /* min-heightではなくfixed heightにする（可変高さがstickyを壊すため） */
  overflow: hidden;
  background: var(--surface);
  border-radius: 16px;
  margin-bottom: 0;
}
.biz-card:nth-child(1) { top: 80px;  z-index: 1; }
.biz-card:nth-child(2) { top: 30vh;  z-index: 2; }
.biz-card:nth-child(3) { top: 50vh;  z-index: 3; }
@media (max-width: 768px) {
  #biz-stack { padding-bottom: 0; }
  .biz-card { height: auto; min-height: 80vh; }
  .biz-card:nth-child(1) { top: 64px; }
  .biz-card:nth-child(2) { top: 26vh; }
  .biz-card:nth-child(3) { top: 44vh; }
}
.biz-card-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0);
  z-index: 2;
  pointer-events: none;
  border-radius: 16px;
}
.biz-card-inner {
  position: relative;
  z-index: 1;
  padding: 56px 0 64px;
}
.biz-card-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
}
.biz-num {
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--text-muted);
}
.biz-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.biz-tag {
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 14px;
  color: var(--text-muted);
}
.biz-card-title {
  font-family: 'Inter', sans-serif;
  font-weight: 900;
  font-size: clamp(3.5rem, 8vw, 7rem);
  letter-spacing: -0.05em;
  line-height: 0.9;
  color: var(--text);
  margin-bottom: 40px;
}
.biz-card-desc {
  max-width: 540px;
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 2;
  margin-bottom: 1.2em;
}
.biz-card-desc:last-child { margin-bottom: 0; }
.biz-list {
  list-style: none;
  padding: 0;
  margin: 16px 0 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.biz-list li {
  font-size: 0.9rem;
  color: var(--text);
  padding-left: 18px;
  position: relative;
}
.biz-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 2px;
  background: var(--accent);
}
.biz-card-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 32px;
  padding: 14px 28px;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--text);
  text-decoration: none;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.biz-card-link:hover {
  background: var(--accent);
  color: #000;
  border-color: var(--accent);
}

/* =====================================================
   ABOUT
===================================================== */
.about-section {
  padding: 120px 0;
  background: var(--bg-2);
  border-top: 1px solid var(--border);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.about-statement {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: clamp(1.6rem, 3.5vw, 2.6rem);
  line-height: 1.35;
  letter-spacing: -0.02em;
  margin-top: 32px;
}
.about-statement em {
  font-style: normal;
  color: var(--accent);
}

.about-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 32px;
}
.about-table tr {
  border-bottom: 1px solid var(--border);
}
.about-table th {
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 400;
  text-align: left;
  padding: 20px 0;
  width: 120px;
  vertical-align: top;
}
.about-table td {
  font-size: 0.92rem;
  padding: 20px 0;
  color: var(--text);
  line-height: 1.7;
}

/* =====================================================
   CONTACT
===================================================== */
.contact-section {
  padding: 120px 0;
  background: var(--bg);
  border-top: 1px solid var(--border);
}
.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.contact-big-text {
  font-family: 'Inter', sans-serif;
  font-weight: 900;
  font-size: clamp(3rem, 8vw, 7rem);
  line-height: 0.9;
  letter-spacing: -0.04em;
  margin-top: 24px;
}
.contact-big-text span { color: var(--accent); }
.contact-tel-wrap {
  margin-top: 40px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}
.contact-tel-label { font-size: 0.72rem; letter-spacing: 0.15em; color: var(--text-muted); margin-bottom: 8px; }
.contact-tel {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 1.6rem;
  letter-spacing: 0.02em;
  color: var(--text);
  transition: color 0.2s;
}
.contact-tel:hover { color: var(--accent); }

/* Select ドロップダウン */
.form-row--select select {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border);
  outline: none;
  padding: 20px 0;
  font-family: 'Inter', 'Noto Sans JP', sans-serif;
  font-size: 0.92rem;
  color: var(--text-muted);
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23888' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 4px center;
}
.form-row--select select option {
  background: #1a1a1a;
  color: var(--text);
}
.form-row--select select:focus { color: var(--text); }

/* エラーメッセージ */
.form-error {
  display: block;
  font-size: 0.75rem;
  color: #ff3cac;
  margin-top: 4px;
  min-height: 1em;
}
input.is-error {
  border-bottom-color: #ff3cac !important;
}
.form-row {
  border-bottom: 1px solid var(--border);
}
.form-row:first-child { border-top: 1px solid var(--border); }
.form-row input,
.form-row textarea {
  width: 100%;
  background: transparent;
  border: none;
  outline: none;
  padding: 20px 0;
  font-family: 'Inter', 'Noto Sans JP', sans-serif;
  font-size: 0.92rem;
  color: var(--text);
  resize: none;
}
.form-row input::placeholder,
.form-row textarea::placeholder { color: var(--text-muted); }
.form-submit {
  margin-top: 32px;
}
.btn-submit {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: 'Inter', sans-serif;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--bg);
  background: var(--accent);
  border: none;
  padding: 16px 36px;
  cursor: none;
  border-radius: var(--radius);
  transition: background 0.25s, transform 0.25s;
}
.btn-submit:hover {
  background: #fff;
  transform: translateY(-2px);
}

/* =====================================================
   Footer
===================================================== */
.site-footer {
  padding: 60px 0 40px;
  background: var(--bg);
  border-top: 1px solid var(--border);
}
.footer-inner {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 40px;
}
.footer-logo {
  font-family: 'Inter', sans-serif;
  font-weight: 900;
  font-size: 1rem;
  letter-spacing: 0.05em;
}
.footer-logo em { font-style: normal; color: var(--accent); }
.footer-address {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.8;
  text-align: right;
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}
.footer-copy {
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
}
.footer-nav {
  display: flex;
  gap: 2rem;
}
.footer-nav a {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: color 0.2s;
}
.footer-nav a:hover { color: var(--accent); }

/* =====================================================
   Scroll Indicator — 円形回転テキスト
===================================================== */
.scroll-indicator {
  position: absolute;
  bottom: 5vh;
  right: 5vw;
  width: clamp(90px, 10vw, 130px);
  height: clamp(90px, 10vw, 130px);
  animation: scroll-rotate 10s linear infinite;
  z-index: 15; /* パネル・ヒーローテキストより上 */
}
@keyframes scroll-rotate {
  to { transform: rotate(360deg); }
}
.scroll-circle-text {
  font-family: 'Inter', sans-serif;
  font-size: 11.5px;
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  fill: rgba(255,255,255,0.7);
}
/* • (•) をライム色に */
.scroll-indicator tspan,
.scroll-indicator textPath {
  /* fillはtextに継承。dotはCSS直接制御不可のため fill="…" を使用 */
}

/* スマホ: 上に移動（bottom を増やす）・中央配置 */
@media (max-width: 768px) {
  .scroll-indicator {
    bottom: 14vh;
    right: 50%;
    transform: translateX(50%);
    width: 100px;
    height: 100px;
    animation: scroll-rotate-sp 10s linear infinite;
  }
  @keyframes scroll-rotate-sp {
    to { transform: translateX(50%) rotate(360deg); }
  }
}

/* =====================================================
   Parallax wrapper
===================================================== */
.parallax-wrap { overflow: hidden; }
[data-parallax] { will-change: transform; }

/* =====================================================
   Responsive
===================================================== */
@media (max-width: 900px) {
  .biz-card-title { font-size: clamp(2.5rem, 10vw, 4rem); line-height: 1; }
  .service-detail-item { grid-template-columns: 60px 1fr; }
  .sd-desc { grid-column: 2; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .contact-inner { grid-template-columns: 1fr; gap: 60px; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .footer-address { text-align: left; }
}

@media (max-width: 768px) {
  .global-nav { display: none; }
  .hamburger { display: flex; }
  .section-head { flex-direction: column; gap: 1rem; }
  .hero-bottom { flex-direction: column; align-items: flex-start; }
  .hero-scroll { display: none; }
}

@media (max-width: 480px) {
  .service-detail-item { grid-template-columns: 1fr; gap: 12px; }
  .footer-bottom { flex-direction: column; gap: 1rem; align-items: flex-start; }
  .footer-nav { flex-wrap: wrap; gap: 1rem; }
}

/* =====================================================
   Global Nav Dropdown
===================================================== */
.global-nav li.has-sub { position: relative; }
.global-nav li.has-sub > a::after {
  content: '';
  display: inline-block;
  margin-left: 6px;
  width: 6px;
  height: 6px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  vertical-align: middle;
  opacity: 0.6;
}
.global-nav .sub-menu {
  display: none;
  position: absolute;
  top: calc(100% + 12px);
  left: 0;
  min-width: 180px;
  background: var(--surface, #111);
  border: 1px solid var(--border, rgba(255,255,255,0.1));
  border-radius: 8px;
  padding: 8px 0;
  z-index: 1000;
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
}
.global-nav li.has-sub:hover .sub-menu,
.global-nav li.has-sub:focus-within .sub-menu { display: block; }
.global-nav .sub-menu li a {
  display: block;
  padding: 10px 20px;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  color: var(--text-muted, rgba(255,255,255,0.6));
  white-space: nowrap;
  transition: color 0.2s;
}
.global-nav .sub-menu li a:hover { color: var(--text, #fff); }

/* Mobile sub-menu */
.mobile-nav-item { display: flex; flex-direction: column; }
.mobile-nav-toggle {
  background: none;
  border: none;
  cursor: pointer;
  font: inherit;
  text-align: left;
  color: inherit;
  padding: 22px 0;
}
.mobile-nav-toggle::after {
  content: '';
  display: block;
  width: 8px;
  height: 8px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg);
  transition: transform 0.2s;
  flex-shrink: 0;
}
.mobile-nav-toggle[aria-expanded="true"]::after {
  transform: rotate(-135deg) translateY(4px);
}
.mobile-sub-menu {
  display: none;
  flex-direction: column;
  padding: 4px 0 16px 16px;
  gap: 0;
  border-top: 1px solid var(--border, rgba(255,255,255,0.06));
}
.mobile-sub-menu.is-open { display: flex; }
.mobile-sub-link {
  display: block;
  padding: 14px 0;
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  color: var(--text-muted, rgba(255,255,255,0.5));
  text-decoration: none;
  transition: color 0.2s;
  border-bottom: 1px solid var(--border, rgba(255,255,255,0.05));
}
.mobile-sub-link:last-child { border-bottom: none; }
.mobile-sub-link:hover { color: var(--accent); }

/* =====================================================
   Business sub pages
===================================================== */
.biz-page-hero {
  position: relative;
  height: 70vh;
  min-height: 480px;
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: flex-end;
}
.biz-page-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(0,0,0,0.2) 0%, rgba(0,0,0,0.7) 100%);
}
.biz-page-hero-inner {
  position: relative;
  z-index: 1;
  padding-bottom: 60px;
}
.biz-page-title {
  font-family: 'Inter', sans-serif;
  font-size: clamp(3.5rem, 8vw, 7rem);
  font-weight: 900;
  letter-spacing: -0.05em;
  line-height: 0.9;
  color: #fff;
  margin: 12px 0 16px;
}
.biz-page-catch {
  font-size: 1rem;
  color: rgba(255,255,255,0.8);
  letter-spacing: 0.05em;
}
.biz-page-section { padding: 80px 0 160px; }
.biz-page-body .biz-card-desc { max-width: 680px; }
.biz-detail-block {
  padding: 64px 0;
  border-bottom: 1px solid var(--border, rgba(255,255,255,0.08));
}
.biz-detail-block:last-child { border-bottom: none; }
.biz-detail-label {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 32px;
}
.biz-detail-title {
  font-family: 'Inter', sans-serif;
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
}
/* Media link cards */
.media-link-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.media-link-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border, rgba(255,255,255,0.1));
  border-radius: 12px;
  overflow: hidden;
  text-decoration: none;
  transition: border-color 0.2s, transform 0.2s;
}
.media-link-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}
.media-link-thumb {
  width: 100%;
  aspect-ratio: 16/9;
  background-size: cover;
  background-position: center;
  background-color: var(--surface);
}
.media-link-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}
.media-link-tag {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--accent);
}
.media-link-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.4;
}
.media-link-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.7;
  flex: 1;
}
.media-link-url {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 8px;
  opacity: 0.7;
}
@media (max-width: 900px) {
  .media-link-grid { grid-template-columns: 1fr; }
}

/* =====================================================
   Contact page
===================================================== */
.contact-page-head { margin-bottom: 60px; }
.contact-page-head .label { display: block; margin-bottom: 12px; }
.contact-page-title { font-size: clamp(3rem, 7vw, 6rem); font-weight: 900; letter-spacing: -0.04em; margin-bottom: 20px; }
.contact-section--page { padding: 60px 0 160px; }
.contact-result {
  padding: 16px 24px;
  border-radius: 8px;
  margin-bottom: 32px;
  font-size: 0.9rem;
}
.contact-result--success { background: rgba(200,255,0,0.12); border: 1px solid var(--accent, #c8ff00); color: var(--accent, #c8ff00); }
.contact-result--error   { background: rgba(255,80,80,0.1);  border: 1px solid #ff5050; color: #ff5050; }