/* =========================
   色や共通サイズの設定
   ========================= */
:root {
  --bg: #0f1115;
  --bg-soft: #171a21;
  --card: rgba(255, 255, 255, 0.08);
  --card-border: rgba(255, 255, 255, 0.12);
  --text: #f6f1e9;
  --muted: #b7b0a4;
  --accent: #d7b56d;
  --accent-strong: #f0c978;
  --shadow: 0 12px 30px rgba(0, 0, 0, 0.25);
  --radius: 18px;
  --max-width: 1100px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", "Hiragino Sans", "Yu Gothic UI", sans-serif;
  background: linear-gradient(180deg, #0d0f14 0%, #131720 100%);
  color: var(--text);
  line-height: 1.7;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(92%, var(--max-width));
  margin: 0 auto;
}

/* =========================
   ヘッダー
   ========================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(10, 12, 18, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 76px;
}

.logo {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.nav {
  display: flex;
  gap: 18px;
}

.nav a {
  color: var(--muted);
  transition: color 0.3s ease;
}

.nav a:hover {
  color: var(--accent-strong);
}

.menu-toggle {
  display: none;
  border: 1px solid var(--card-border);
  background: transparent;
  color: var(--text);
  padding: 10px 14px;
  border-radius: 999px;
  cursor: pointer;
}

/* =========================
   ヒーローエリア
   ========================= */
.hero {
  position: relative;
  overflow: hidden;
  min-height: 78vh;
  display: flex;
  align-items: center;
  padding: 120px 0 90px;
  background:
    radial-gradient(circle at top right, rgba(215, 181, 109, 0.18), transparent 30%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01));
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5, 6, 9, 0.35), rgba(5, 6, 9, 0.7));
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 760px;
}

.page-hero {
  position: relative;
  padding: 120px 0 60px;
  background:
    radial-gradient(circle at top right, rgba(215, 181, 109, 0.12), transparent 30%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01));
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.small-hero {
  padding: 100px 0 40px;
}

.eyebrow {
  color: var(--accent-strong);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.8rem;
  margin-bottom: 12px;
}

h1, h2, h3 {
  line-height: 1.2;
  margin-top: 0;
}

h1 {
  font-size: clamp(2.4rem, 5vw, 4.5rem);
  margin-bottom: 18px;
}

h2 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  margin-bottom: 14px;
}

h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
}

.hero-text,
.section-heading p,
.card p {
  color: var(--muted);
}

/* =========================
   ボタン
   ========================= */
.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 20px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, color 0.25s ease, border-color 0.25s ease;
  cursor: pointer;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #1b1408;
}

.btn-secondary {
  background: transparent;
  border-color: var(--card-border);
  color: var(--text);
}

.text-link {
  color: var(--accent-strong);
  font-weight: 600;
  transition: color 0.25s ease;
}

/* =========================
   セクションとカード
   ========================= */
.section {
  position: relative;
  padding: 88px 0;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 36px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.card:hover {
  transform: translateY(-6px);
  border-color: rgba(240, 201, 120, 0.35);
}

.card-visual {
  position: relative;
  overflow: hidden;
  min-height: 180px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background:
    radial-gradient(circle at top right, rgba(240, 201, 120, 0.20), transparent 28%),
    linear-gradient(135deg, rgba(255,255,255,0.10), rgba(255,255,255,0.03)),
    linear-gradient(180deg, rgba(26, 30, 40, 0.95), rgba(14, 16, 22, 0.98));
}

.card-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 1;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(12, 14, 20, 0.65);
  border: 1px solid rgba(255, 255, 255, 0.10);
  color: var(--accent-strong);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.card-visual-title {
  position: absolute;
  left: 18px;
  bottom: 16px;
  right: 18px;
  margin: 0;
  font-size: 1.15rem;
  line-height: 1.3;
  color: #fff9ef;
}

.visual-afterglow {
  background:
    radial-gradient(circle at top right, rgba(255, 170, 90, 0.24), transparent 26%),
    radial-gradient(circle at bottom left, rgba(255, 80, 160, 0.18), transparent 34%),
    linear-gradient(135deg, rgba(255,255,255,0.10), rgba(255,255,255,0.03)),
    linear-gradient(180deg, rgba(28, 24, 40, 0.96), rgba(11, 12, 18, 1));
}

.visual-petal {
  background:
    radial-gradient(circle at top right, rgba(255, 203, 214, 0.25), transparent 26%),
    radial-gradient(circle at bottom left, rgba(232, 188, 152, 0.18), transparent 34%),
    linear-gradient(135deg, rgba(255,255,255,0.10), rgba(255,255,255,0.03)),
    linear-gradient(180deg, rgba(44, 32, 34, 0.96), rgba(18, 14, 16, 1));
}

.visual-loop {
  background:
    radial-gradient(circle at top right, rgba(193, 230, 255, 0.18), transparent 24%),
    radial-gradient(circle at bottom left, rgba(158, 195, 255, 0.14), transparent 32%),
    linear-gradient(135deg, rgba(255,255,255,0.10), rgba(255,255,255,0.03)),
    linear-gradient(180deg, rgba(24, 29, 36, 0.96), rgba(11, 13, 18, 1));
}

.visual-product {
  background:
    radial-gradient(circle at top right, rgba(240, 201, 120, 0.20), transparent 26%),
    radial-gradient(circle at bottom left, rgba(255, 255, 255, 0.08), transparent 34%),
    linear-gradient(180deg, rgba(27, 30, 38, 0.96), rgba(12, 14, 18, 1));
}

.visual-games {
  background:
    radial-gradient(circle at top right, rgba(110, 170, 255, 0.24), transparent 28%),
    radial-gradient(circle at bottom left, rgba(120, 255, 214, 0.12), transparent 34%),
    linear-gradient(180deg, rgba(18, 28, 38, 0.96), rgba(9, 14, 20, 1));
}

.card-body {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.card-body .text-link {
  margin-top: auto;
}

.card:hover .card-visual {
  transform: scale(1.01);
  transition: transform 0.3s ease;
}

/* =========================
   Contactページ用
   ========================= */
.form-wrap,
.contact-card {
  max-width: 760px;
  margin: 0 auto;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
}

.contact-form {
  display: grid;
  gap: 14px;
}

.contact-form label {
  font-weight: 600;
  color: var(--text);
}

.contact-form input,
.contact-form textarea,
.contact-form select {
  width: 100%;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font: inherit;
  outline: none;
  transition: border-color 0.25s ease, background 0.25s ease;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: rgba(183, 176, 164, 0.8);
}

.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
  border-color: rgba(240, 201, 120, 0.5);
  background: rgba(255, 255, 255, 0.06);
}

.contact-form textarea {
  resize: vertical;
  min-height: 160px;
}

/* =========================
   ブランド詳細ページ専用
   ========================= */
.brand-detail-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 36px;
  align-items: center;
}

.brand-detail-copy {
  max-width: 640px;
}

.brand-main-visual {
  position: relative;
  overflow: hidden;
  min-height: 420px;
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.10);
  background:
    radial-gradient(circle at top right, rgba(255, 170, 90, 0.28), transparent 24%),
    radial-gradient(circle at bottom left, rgba(255, 80, 160, 0.18), transparent 32%),
    linear-gradient(180deg, rgba(28, 24, 40, 0.98), rgba(11, 12, 18, 1));
  box-shadow: var(--shadow);
}

.visual-glow {
  position: absolute;
  width: 220px;
  height: 220px;
  right: 18%;
  top: 18%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 190, 120, 0.28), transparent 65%);
  filter: blur(6px);
}

.visual-circle {
  position: absolute;
  width: 180px;
  height: 180px;
  left: 14%;
  bottom: 16%;
  border-radius: 50%;
  border: 2px solid rgba(240, 201, 120, 0.28);
  box-shadow: 0 0 40px rgba(255, 170, 90, 0.10);
}

.visual-cat-text {
  position: absolute;
  left: 24px;
  bottom: 24px;
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: 700;
  color: #fff6e9;
  letter-spacing: 0.04em;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.info-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.section-soft {
  background: rgba(255, 255, 255, 0.02);
}

.keyword-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.keyword-chip {
  padding: 12px 18px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.10);
  color: var(--text);
  font-weight: 600;
}

.story-panel {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: 28px;
  align-items: center;
}

.story-copy p {
  color: var(--muted);
}

.story-glow-card {
  min-height: 260px;
  border-radius: 20px;
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.10);
  background:
    radial-gradient(circle at top right, rgba(255, 170, 90, 0.20), transparent 28%),
    radial-gradient(circle at bottom left, rgba(255, 80, 160, 0.14), transparent 34%),
    linear-gradient(180deg, rgba(26, 22, 36, 0.96), rgba(12, 14, 18, 1));
  box-shadow: var(--shadow);
  display: flex;
  align-items: end;
  color: var(--muted);
}

.cta-panel {
  text-align: center;
  max-width: 820px;
  margin: 0 auto;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 24px;
  box-shadow: var(--shadow);
  padding: 40px 24px;
}

/* =========================
   フッター
   ========================= */
.site-footer {
  padding: 28px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(9, 11, 16, 0.7);
}

.footer-inner {
  text-align: center;
  color: var(--muted);
}

/* =========================
   スクロール演出
   ========================= */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* =========================================
   Theme Variation
   ブランド用 / ゲーム用の見た目切り替え
========================================= */

.site-header,
.page-hero,
.hero,
.card,
.info-card,
.cta-panel,
.story-panel,
.text-link,
.btn {
  transition: all 0.3s ease;
}

/* =========================================
   BRAND THEME
========================================= */
.brand-theme {
  background:
    radial-gradient(circle at top right, rgba(212, 175, 55, 0.08), transparent 28%),
    radial-gradient(circle at bottom left, rgba(255, 215, 140, 0.05), transparent 24%),
    linear-gradient(180deg, #0f0c08 0%, #15100a 45%, #0c0a08 100%);
  color: #f4efe7;
}

.brand-theme .site-header {
  background: rgba(20, 14, 8, 0.7);
  border-bottom: 1px solid rgba(212, 175, 55, 0.18);
}

.brand-theme .logo,
.brand-theme .nav a {
  color: #f8f1df;
}

.brand-theme .nav a:hover {
  color: #ffd27a;
}

.brand-theme .page-hero,
.brand-theme .hero {
  background:
    radial-gradient(circle at 20% 20%, rgba(255, 210, 122, 0.10), transparent 25%),
    linear-gradient(135deg, rgba(30, 22, 14, 0.9), rgba(12, 10, 8, 0.95));
}

.brand-theme .eyebrow {
  color: #f2c66d;
  letter-spacing: 0.12em;
}

.brand-theme h1,
.brand-theme h2,
.brand-theme h3 {
  color: #fff6e8;
}

.brand-theme .hero-text,
.brand-theme .card-body p,
.brand-theme .info-card p,
.brand-theme .cta-panel p,
.brand-theme .story-copy p,
.brand-theme .section-heading p {
  color: rgba(255, 244, 226, 0.82);
}

.brand-theme .card,
.brand-theme .info-card,
.brand-theme .cta-panel,
.brand-theme .story-panel,
.brand-theme .contact-card,
.brand-theme .form-wrap {
  background: rgba(255, 248, 236, 0.04);
  border: 1px solid rgba(212, 175, 55, 0.16);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.28);
}

.brand-theme .card:hover,
.brand-theme .info-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.35);
  border-color: rgba(255, 210, 122, 0.35);
}

.brand-theme .card-badge,
.brand-theme .keyword-chip {
  background: rgba(255, 210, 122, 0.12);
  border: 1px solid rgba(255, 210, 122, 0.25);
  color: #ffd27a;
}

.brand-theme .btn-primary {
  background: linear-gradient(135deg, #c89a3d, #f2c66d);
  color: #1a1208;
  border: none;
}

.brand-theme .btn-primary:hover {
  box-shadow: 0 8px 22px rgba(242, 198, 109, 0.28);
}

.brand-theme .btn-secondary {
  background: transparent;
  color: #f6d58c;
  border: 1px solid rgba(246, 213, 140, 0.35);
}

.brand-theme .btn-secondary:hover {
  background: rgba(246, 213, 140, 0.08);
}

.brand-theme .text-link {
  color: #ffd27a;
}

.brand-theme .text-link:hover {
  color: #ffe2a7;
}

.brand-theme .site-footer {
  border-top: 1px solid rgba(212, 175, 55, 0.14);
  background: rgba(10, 8, 6, 0.7);
}

.brand-theme .visual-afterglow,
.brand-theme .visual-product,
.brand-theme .visual-petal,
.brand-theme .visual-loop {
  background:
    radial-gradient(circle at 25% 20%, rgba(255, 214, 139, 0.12), transparent 22%),
    linear-gradient(135deg, #23170f, #110d09);
}

.brand-theme .section-soft {
  background:
    linear-gradient(180deg, rgba(26, 18, 10, 0.64), rgba(14, 10, 8, 0.70));
}

/* =========================================
   GAME THEME
========================================= */
.game-theme {
  background:
    radial-gradient(circle at top left, rgba(91, 124, 255, 0.16), transparent 28%),
    radial-gradient(circle at top right, rgba(201, 76, 255, 0.12), transparent 26%),
    radial-gradient(circle at bottom center, rgba(0, 224, 255, 0.10), transparent 24%),
    linear-gradient(180deg, #090b16 0%, #0d1020 48%, #080b14 100%);
  color: #eef4ff;
}

.game-theme .site-header {
  background: rgba(8, 12, 26, 0.75);
  border-bottom: 1px solid rgba(95, 143, 255, 0.22);
}

.game-theme .logo,
.game-theme .nav a {
  color: #eef4ff;
}

.game-theme .nav a:hover {
  color: #7be7ff;
}

.game-theme .page-hero,
.game-theme .hero {
  background:
    radial-gradient(circle at 18% 22%, rgba(123, 231, 255, 0.14), transparent 20%),
    radial-gradient(circle at 80% 10%, rgba(180, 100, 255, 0.14), transparent 24%),
    linear-gradient(135deg, rgba(12, 18, 36, 0.95), rgba(8, 10, 22, 0.98));
  position: relative;
  overflow: hidden;
}

.game-theme .page-hero::after,
.game-theme .hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, transparent 0%, rgba(255,255,255,0.02) 50%, transparent 100%);
  pointer-events: none;
}

.game-theme .eyebrow {
  color: #7be7ff;
  letter-spacing: 0.14em;
}

.game-theme h1,
.game-theme h2,
.game-theme h3 {
  color: #f5f8ff;
  text-shadow: 0 0 18px rgba(123, 231, 255, 0.06);
}

.game-theme .hero-text,
.game-theme .card-body p,
.game-theme .info-card p,
.game-theme .cta-panel p,
.game-theme .story-copy p,
.game-theme .section-heading p {
  color: rgba(228, 237, 255, 0.84);
}

.game-theme .card,
.game-theme .info-card,
.game-theme .cta-panel,
.game-theme .story-panel,
.game-theme .contact-card,
.game-theme .form-wrap {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(110, 144, 255, 0.22);
  box-shadow:
    0 10px 30px rgba(0, 0, 0, 0.28),
    0 0 0 1px rgba(123, 231, 255, 0.03) inset;
}

.game-theme .card:hover,
.game-theme .info-card:hover {
  transform: translateY(-8px) scale(1.01);
  border-color: rgba(123, 231, 255, 0.45);
  box-shadow:
    0 18px 40px rgba(0, 0, 0, 0.34),
    0 0 24px rgba(123, 231, 255, 0.12);
}

.game-theme .card-badge,
.game-theme .keyword-chip {
  background: rgba(123, 231, 255, 0.10);
  border: 1px solid rgba(123, 231, 255, 0.25);
  color: #7be7ff;
}

.game-theme .btn-primary {
  background: linear-gradient(135deg, #4ea3ff, #7be7ff);
  color: #07111d;
  border: none;
  box-shadow: 0 6px 18px rgba(78, 163, 255, 0.18);
}

.game-theme .btn-primary:hover {
  box-shadow: 0 10px 26px rgba(78, 163, 255, 0.28);
}

.game-theme .btn-secondary {
  background: transparent;
  color: #b5c8ff;
  border: 1px solid rgba(123, 231, 255, 0.30);
}

.game-theme .btn-secondary:hover {
  background: rgba(123, 231, 255, 0.08);
}

.game-theme .text-link {
  color: #7be7ff;
}

.game-theme .text-link:hover {
  color: #b7f4ff;
}

.game-theme .site-footer {
  border-top: 1px solid rgba(110, 144, 255, 0.18);
  background: rgba(6, 9, 18, 0.78);
}

.game-theme .visual-games {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 20% 20%, rgba(123, 231, 255, 0.24), transparent 25%),
    radial-gradient(circle at 80% 25%, rgba(186, 110, 255, 0.22), transparent 28%),
    linear-gradient(135deg, #101a35, #0a0f22);
}

.game-theme .visual-games::before {
  content: "";
  position: absolute;
  inset: auto -20% -30% -20%;
  height: 60%;
  background: radial-gradient(circle, rgba(123, 231, 255, 0.18), transparent 60%);
  filter: blur(28px);
}

.game-theme .section-soft {
  background:
    linear-gradient(180deg, rgba(15, 21, 42, 0.72), rgba(8, 12, 24, 0.74));
}

/* =========================================
   CYBER GAME THEME
   使い方:
   <body class="game-theme cyber-theme">
========================================= */
.cyber-theme {
  background:
    linear-gradient(rgba(7, 13, 28, 0.96), rgba(5, 9, 20, 0.98)),
    repeating-linear-gradient(
      0deg,
      rgba(90, 170, 255, 0.05) 0px,
      rgba(90, 170, 255, 0.05) 1px,
      transparent 1px,
      transparent 24px
    ),
    repeating-linear-gradient(
      90deg,
      rgba(90, 170, 255, 0.05) 0px,
      rgba(90, 170, 255, 0.05) 1px,
      transparent 1px,
      transparent 24px
    );
  color: #eaf6ff;
}

.cyber-theme::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 20% 15%, rgba(0, 255, 255, 0.08), transparent 18%),
    radial-gradient(circle at 80% 20%, rgba(180, 80, 255, 0.08), transparent 20%),
    radial-gradient(circle at 50% 80%, rgba(0, 180, 255, 0.06), transparent 22%);
  z-index: 0;
}

.cyber-theme .site-header,
.cyber-theme .page-hero,
.cyber-theme .section,
.cyber-theme .site-footer {
  position: relative;
  z-index: 1;
}

.cyber-theme .site-header {
  background: rgba(5, 10, 22, 0.86);
  border-bottom: 1px solid rgba(0, 247, 255, 0.22);
  box-shadow: 0 0 18px rgba(0, 247, 255, 0.06);
}

.cyber-theme .logo {
  color: #b9f7ff;
  text-shadow: 0 0 10px rgba(0, 247, 255, 0.18);
  letter-spacing: 0.12em;
}

.cyber-theme .nav a {
  color: #cbdcff;
}

.cyber-theme .nav a:hover {
  color: #7df9ff;
  text-shadow: 0 0 10px rgba(125, 249, 255, 0.28);
}

.cyber-theme .menu-toggle {
  border: 1px solid rgba(125, 249, 255, 0.28);
  color: #dff8ff;
  background: rgba(255, 255, 255, 0.03);
}

.cyber-theme .page-hero,
.cyber-theme .hero {
  background:
    linear-gradient(135deg, rgba(8, 14, 30, 0.95), rgba(8, 10, 18, 0.98)),
    radial-gradient(circle at 15% 20%, rgba(0, 255, 255, 0.12), transparent 18%),
    radial-gradient(circle at 80% 25%, rgba(180, 80, 255, 0.15), transparent 22%);
  border-bottom: 1px solid rgba(125, 249, 255, 0.14);
  overflow: hidden;
}

.cyber-theme .page-hero::before,
.cyber-theme .hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(
      90deg,
      rgba(255, 255, 255, 0.02) 0px,
      rgba(255, 255, 255, 0.02) 2px,
      transparent 2px,
      transparent 12px
    );
  opacity: 0.25;
  pointer-events: none;
}

.cyber-theme .eyebrow {
  color: #7df9ff;
  text-shadow: 0 0 8px rgba(125, 249, 255, 0.18);
  letter-spacing: 0.18em;
}

.cyber-theme h1,
.cyber-theme h2,
.cyber-theme h3 {
  color: #f3fbff;
  text-shadow:
    0 0 12px rgba(0, 247, 255, 0.08),
    0 0 24px rgba(180, 80, 255, 0.04);
}

.cyber-theme .hero-text,
.cyber-theme .section-heading p,
.cyber-theme .card p,
.cyber-theme .card-body p,
.cyber-theme .info-card p {
  color: #b9cce8;
}

.cyber-theme .card,
.cyber-theme .info-card,
.cyber-theme .cta-panel,
.cyber-theme .story-panel,
.cyber-theme .contact-card,
.cyber-theme .form-wrap {
  background:
    linear-gradient(180deg, rgba(13, 20, 38, 0.92), rgba(8, 13, 24, 0.96));
  border: 1px solid rgba(90, 170, 255, 0.24);
  border-radius: 8px;
  box-shadow:
    0 0 0 1px rgba(125, 249, 255, 0.04) inset,
    0 12px 30px rgba(0, 0, 0, 0.34),
    0 0 20px rgba(0, 247, 255, 0.05);
  position: relative;
  overflow: hidden;
}

.cyber-theme .card::before,
.cyber-theme .info-card::before,
.cyber-theme .cta-panel::before,
.cyber-theme .story-panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, #00f7ff, #7c5cff, #00f7ff);
  opacity: 0.75;
}

.cyber-theme .card:hover,
.cyber-theme .info-card:hover {
  transform: translateY(-8px) scale(1.01);
  border-color: rgba(125, 249, 255, 0.45);
  box-shadow:
    0 0 0 1px rgba(125, 249, 255, 0.06) inset,
    0 18px 40px rgba(0, 0, 0, 0.38),
    0 0 24px rgba(125, 249, 255, 0.14);
}

.cyber-theme .visual-games {
  position: relative;
  min-height: 180px;
  border-radius: 8px;
  overflow: hidden;
  background:
    linear-gradient(135deg, #13203b, #0a0f1e 60%, #16142d),
    repeating-linear-gradient(
      0deg,
      rgba(125, 249, 255, 0.05) 0px,
      rgba(125, 249, 255, 0.05) 1px,
      transparent 1px,
      transparent 16px
    ),
    repeating-linear-gradient(
      90deg,
      rgba(125, 249, 255, 0.05) 0px,
      rgba(125, 249, 255, 0.05) 1px,
      transparent 1px,
      transparent 16px
    );
  border: 1px solid rgba(125, 249, 255, 0.18);
}

.cyber-theme .visual-games::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(0, 247, 255, 0.18) 0 2px, transparent 3px),
    radial-gradient(circle at 70% 20%, rgba(255, 90, 255, 0.14) 0 2px, transparent 3px),
    radial-gradient(circle at 60% 70%, rgba(120, 180, 255, 0.14) 0 2px, transparent 3px),
    radial-gradient(circle at 30% 80%, rgba(0, 247, 255, 0.12) 0 2px, transparent 3px);
  background-size: 120px 120px;
  opacity: 0.9;
}

.cyber-theme .visual-games::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(
      180deg,
      rgba(255,255,255,0.025) 0px,
      rgba(255,255,255,0.025) 2px,
      transparent 2px,
      transparent 6px
    );
  mix-blend-mode: screen;
  opacity: 0.35;
}

.cyber-theme .card-badge,
.cyber-theme .keyword-chip {
  background: rgba(0, 247, 255, 0.10);
  border: 1px solid rgba(0, 247, 255, 0.28);
  color: #7df9ff;
  border-radius: 6px;
  box-shadow: 0 0 12px rgba(0, 247, 255, 0.08);
}

.cyber-theme .card-visual-title {
  color: #effbff;
  text-shadow: 0 0 10px rgba(125, 249, 255, 0.16);
}

.cyber-theme .btn {
  border-radius: 8px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.cyber-theme .btn-primary {
  background: linear-gradient(135deg, #00d9ff, #6d7dff);
  color: #08111c;
  box-shadow:
    0 0 16px rgba(0, 217, 255, 0.18),
    0 8px 20px rgba(0, 0, 0, 0.24);
}

.cyber-theme .btn-primary:hover {
  box-shadow:
    0 0 24px rgba(0, 217, 255, 0.28),
    0 12px 28px rgba(0, 0, 0, 0.28);
}

.cyber-theme .btn-secondary {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(125, 249, 255, 0.30);
  color: #d9f8ff;
}

.cyber-theme .btn-secondary:hover {
  background: rgba(125, 249, 255, 0.08);
}

.cyber-theme .text-link {
  color: #7df9ff;
  text-shadow: 0 0 8px rgba(125, 249, 255, 0.12);
}

.cyber-theme .text-link:hover {
  color: #bffcff;
}

.cyber-theme .section-soft {
  background:
    linear-gradient(180deg, rgba(10, 17, 34, 0.88), rgba(8, 12, 24, 0.95));
  border-top: 1px solid rgba(125, 249, 255, 0.08);
  border-bottom: 1px solid rgba(125, 249, 255, 0.08);
}

.cyber-theme .site-footer {
  background: rgba(5, 9, 18, 0.92);
  border-top: 1px solid rgba(125, 249, 255, 0.14);
  color: #9fb4d6;
}

.pixel-title {
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.pixel-frame {
  border-radius: 6px;
  box-shadow:
    0 0 0 1px rgba(125, 249, 255, 0.12),
    4px 4px 0 rgba(0, 0, 0, 0.18);
}

/* =========================
   タブレット調整
   ========================= */
@media (max-width: 900px) {
  .card-grid,
  .info-grid,
  .brand-detail-grid,
  .story-panel {
    grid-template-columns: 1fr;
  }

  .brand-main-visual {
    min-height: 320px;
  }
}

/* =========================
   スマホ調整
   ========================= */
@media (max-width: 768px) {
  .nav {
    display: none;
    position: absolute;
    top: 76px;
    right: 4%;
    width: min(260px, 92vw);
    flex-direction: column;
    padding: 16px;
    border-radius: 18px;
    background: rgba(16, 18, 24, 0.96);
    border: 1px solid var(--card-border);
    box-shadow: var(--shadow);
  }

  .nav.open {
    display: flex;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .hero,
  .page-hero {
    padding-top: 100px;
  }

  .hero {
    min-height: auto;
    padding-bottom: 70px;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .form-wrap,
  .contact-card {
    padding: 20px;
  }
}