/* ============================================================
   NOIR DIGITAL - D2C STOREFRONT EDITORIAL LUXURY STYLESHEET
   Concept: Hakuji (白磁) & Platinum Studio Luxury
   Refined for High-Ticket Digital Assets, Agencies & Master Crafts
   ============================================================ */

:root {
  /* Surface & Base - 洗練された白磁・アイボリー・スタジオパレット */
  --bg-base: #fbfaf8;             /* メイン背景：温かみのある高貴な白磁アイボリー */
  --bg-surface: #ffffff;          /* カード・コンテナ：清潔なピュアホワイト */
  --bg-elevated: #f4f1ea;         /* ハイライトカード・薄いサンド */
  --bg-elevated-hover: #ebe7de;   /* ホバー時 */
  --bg-overlay: rgba(251, 250, 248, 0.92); /* ヘッダー等のグラスブラー */
  --bg-dark-accent: #141518;      /* コントラストを締める漆黒アクセント */

  /* Accents - 鈍金・真鍮・古美金 (Quiet Luxury Gold) */
  --accent-gold: #9d7b38;         /* 白地でもしっかり視認できる品格ある古美金 */
  --accent-gold-light: #b8954e;   /* ホバー時の華やかなゴールド */
  --accent-gold-dark: #7c5f24;    /* 濃いゴールド */
  --accent-gold-glow: rgba(157, 123, 56, 0.18);
  --accent-gold-subtle: rgba(157, 123, 56, 0.08);

  /* Typography - 墨黒・消炭・薄墨 (Editorial Sumi Kuro) */
  --text-primary: #16171a;        /* 墨黒：コントラスト比14:1以上の極めて読みやすい文字 */
  --text-secondary: #585c67;      /* 洗練されたチャコールスレート */
  --text-muted: #8a909d;          /* 控えめなミュートグレー */

  /* Borders & Hairlines - 繊細な1px境界線 */
  --border-subtle: rgba(22, 23, 26, 0.08);
  --border-medium: rgba(22, 23, 26, 0.14);
  --border-gold-subtle: rgba(157, 123, 56, 0.28);
  --border-gold-focus: rgba(157, 123, 56, 0.65);

  /* Typography Fonts */
  --font-serif: 'Cinzel', 'Shippori Mincho', 'Noto Serif JP', serif;
  --font-sans: 'Plus Jakarta Sans', 'Noto Sans JP', -apple-system, sans-serif;

  /* Radius */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;

  /* Smooth Transitions */
  --transition-smooth: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 28px;
}

/* Typography Helpers */
.gold-gradient {
  background: linear-gradient(135deg, #16171a 0%, var(--accent-gold) 65%, var(--accent-gold-dark) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.section-tag {
  font-family: var(--font-serif);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  color: var(--accent-gold);
  text-transform: uppercase;
  margin-bottom: 16px;
  display: inline-block;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(2.0rem, 3.8vw, 2.9rem);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin-bottom: 3.5rem;
  color: var(--text-primary);
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 80px;
  background: rgba(251, 250, 248, 0.88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border-subtle);
  z-index: 1000;
  display: flex;
  align-items: center;
}

.header-container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
}

.logo-kanji {
  background: #16171a;
  color: #e6d5b3;
  border: 1px solid var(--border-gold-subtle);
  font-family: 'Shippori Mincho', serif;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 4px 10px;
  border-radius: var(--radius-xs);
  letter-spacing: 2px;
}

.logo-en {
  font-family: var(--font-serif);
  font-weight: 600;
  letter-spacing: 0.18em;
  font-size: 1.05rem;
  color: var(--text-primary);
}

.header-nav {
  display: flex;
  gap: 32px;
}

.header-nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  transition: color 0.25s;
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 18px;
}

.currency-toggle {
  display: flex;
  background: #eae7e0;
  border: 1px solid var(--border-subtle);
  padding: 3px;
  border-radius: 20px;
}

.curr-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 4px 12px;
  font-size: 0.78rem;
  font-weight: 600;
  border-radius: 16px;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.curr-btn.active {
  background: var(--accent-gold);
  color: #ffffff;
}

.btn-cta-header {
  background: #16171a;
  color: #ffffff;
  border: 1px solid #16171a;
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  padding: 9px 20px;
  border-radius: var(--radius-xs);
  text-decoration: none;
  transition: var(--transition-smooth);
}

.btn-cta-header:hover {
  background: var(--accent-gold);
  color: #ffffff;
  border-color: var(--accent-gold);
}

/* Hero Section */
.hero-section {
  position: relative;
  padding: 175px 0 110px;
  overflow: hidden;
  text-align: center;
  background: var(--bg-base);
}

.hero-glow {
  position: absolute;
  top: -160px;
  left: 50%;
  transform: translateX(-50%);
  width: 850px;
  height: 550px;
  background: radial-gradient(circle, rgba(157, 123, 56, 0.08) 0%, rgba(251, 250, 248, 0) 70%);
  pointer-events: none;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(157, 123, 56, 0.08);
  border: 1px solid var(--border-gold-subtle);
  padding: 7px 18px;
  border-radius: 30px;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  color: var(--accent-gold-dark);
  margin-bottom: 28px;
  font-weight: 600;
}

.badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-gold);
  box-shadow: 0 0 8px var(--accent-gold);
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.3rem, 4.8vw, 3.8rem);
  font-weight: 600;
  line-height: 1.22;
  margin-bottom: 26px;
  letter-spacing: -0.015em;
  color: var(--text-primary);
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 760px;
  margin: 0 auto 46px;
  line-height: 1.85;
}

.hero-cta-group {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  margin-bottom: 68px;
}

.btn-primary-glow {
  background: #16171a;
  color: #ffffff;
  font-weight: 600;
  font-size: 1.0rem;
  letter-spacing: 0.04em;
  padding: 16px 36px;
  border-radius: var(--radius-xs);
  text-decoration: none;
  box-shadow: 0 8px 24px rgba(22, 23, 26, 0.16);
  transition: var(--transition-smooth);
  border: 1px solid #16171a;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.btn-primary-glow:hover {
  background: var(--accent-gold);
  color: #ffffff;
  border-color: var(--accent-gold);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px var(--accent-gold-glow);
}

.btn-secondary-border {
  background: #ffffff;
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
  font-weight: 600;
  font-size: 1.0rem;
  letter-spacing: 0.03em;
  padding: 15px 32px;
  border-radius: var(--radius-xs);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  transition: var(--transition-smooth);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
}

.btn-secondary-border:hover {
  background: var(--bg-elevated);
  border-color: var(--accent-gold);
  color: var(--accent-gold);
}

.hero-trust-badges {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 42px;
  padding-top: 36px;
  border-top: 1px solid var(--border-subtle);
  max-width: 960px;
  margin: 0 auto;
}

.trust-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.trust-val {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text-primary);
}

.trust-lbl {
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin-top: 2px;
}

.trust-divider {
  width: 1px;
  height: 26px;
  background: var(--border-subtle);
}

/* Problem Solution */
.problem-solution-section {
  padding: 100px 0;
  background: #ffffff;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  text-align: center;
}

.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  text-align: left;
}

.comp-card {
  padding: 40px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--bg-base);
}

.comp-card.noir {
  border-color: var(--border-gold-subtle);
  background: #ffffff;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.05);
}

.card-status {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  padding: 4px 12px;
  border-radius: var(--radius-xs);
  margin-bottom: 24px;
}

.card-status.bad {
  background: rgba(220, 76, 76, 0.08);
  color: #c94040;
  border: 1px solid rgba(220, 76, 76, 0.2);
}

.card-status.good {
  background: rgba(157, 123, 56, 0.1);
  color: var(--accent-gold-dark);
  border: 1px solid var(--border-gold-subtle);
}

.comp-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
  font-size: 0.94rem;
  color: var(--text-secondary);
}

.comp-card.noir .comp-list li {
  color: var(--text-primary);
}

/* Features Grid */
.features-section {
  padding: 120px 0;
  background: var(--bg-base);
  text-align: center;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  text-align: left;
}

.feature-box {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  padding: 36px 30px;
  border-radius: var(--radius-md);
  transition: var(--transition-smooth);
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.02);
}

.feature-box:hover {
  border-color: var(--border-gold-subtle);
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
}

.feature-icon {
  font-size: 1.8rem;
  margin-bottom: 20px;
  display: inline-block;
  color: var(--accent-gold);
}

.feature-box h3 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.feature-box p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.75;
}

/* Agency Asset Showcase */
.agency-asset-section {
  padding: 100px 0;
  background: #ffffff;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.asset-banner {
  background: var(--bg-base);
  border: 1px solid var(--border-gold-subtle);
  border-radius: var(--radius-md);
  padding: 48px;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: center;
  box-shadow: 0 10px 35px rgba(0, 0, 0, 0.03);
}

.asset-banner-text h3 {
  font-family: var(--font-serif);
  font-size: 1.85rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.asset-banner-text p {
  color: var(--text-secondary);
  font-size: 0.98rem;
  line-height: 1.8;
  margin-bottom: 24px;
}

.asset-checklist {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.asset-checklist li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  color: var(--text-primary);
}

.asset-checklist span {
  color: var(--accent-gold);
  font-weight: 700;
}

.asset-code-preview {
  background: #141518;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  padding: 24px;
  font-family: monospace;
  font-size: 0.84rem;
  color: #e6d5b3;
  line-height: 1.7;
}

/* Live Demo Section - Framing the Masterpiece */
.demo-section {
  padding: 120px 0;
  background: var(--bg-base);
}

.demo-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 56px;
  align-items: center;
}

.demo-text h2 {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-weight: 600;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.demo-text p {
  color: var(--text-secondary);
  margin-bottom: 36px;
  font-size: 1.05rem;
  line-height: 1.85;
}

/* Obsidian Display Vitrine */
.demo-preview-card {
  background: #0d0f14;
  border: 1px solid rgba(157, 123, 56, 0.35);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.18), 0 0 35px rgba(157, 123, 56, 0.1);
  transition: var(--transition-smooth);
}

.demo-preview-card:hover {
  border-color: var(--accent-gold);
  box-shadow: 0 35px 85px rgba(0, 0, 0, 0.25), 0 0 50px rgba(157, 123, 56, 0.2);
}

.card-browser-bar {
  background: #141720;
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  gap: 12px;
}

.browser-dots {
  display: flex;
  gap: 6px;
  align-items: center;
}

.browser-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.dot-red { background: #ff5f56; }
.dot-yellow { background: #ffbd2e; }
.dot-green { background: #27c93f; }

.browser-url-pill {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  background: #08090c;
  padding: 6px 14px;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  font-family: monospace;
  font-size: 0.76rem;
  color: #a0a4b0;
}

.url-lock {
  font-size: 0.75rem;
}

.browser-url {
  color: #e6d5b3;
  letter-spacing: 0.04em;
}

.btn-fullscreen-trigger {
  background: rgba(157, 123, 56, 0.15);
  border: 1px solid rgba(157, 123, 56, 0.4);
  color: #e6d5b3;
  padding: 6px 12px;
  border-radius: 4px;
  font-size: 0.78rem;
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
  font-weight: 500;
}

.btn-fullscreen-trigger:hover {
  background: var(--accent-gold);
  color: #ffffff;
  box-shadow: 0 0 15px rgba(157, 123, 56, 0.4);
}

.preview-inner {
  position: relative;
  height: 480px;
  background: #08090b;
  overflow: hidden;
}

.demo-inline-iframe {
  width: 100%;
  height: 100%;
  border: none;
  display: block;
}

.demo-actions {
  display: flex;
  gap: 14px;
  align-items: center;
  flex-wrap: wrap;
}

/* Pricing Section */
.pricing-section {
  padding: 120px 0;
  background: #ffffff;
  border-top: 1px solid var(--border-subtle);
  text-align: center;
}

.pricing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  max-width: 1040px;
  margin: 0 auto 60px;
  text-align: left;
}

.pricing-card {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 48px 40px;
  position: relative;
  display: flex;
  flex-direction: column;
  transition: var(--transition-smooth);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.03);
}

.pricing-card.popular {
  border: 2px solid var(--accent-gold);
  background: #fdfcf9;
  box-shadow: 0 16px 50px rgba(157, 123, 56, 0.12);
}

.popular-badge {
  position: absolute;
  top: -13px;
  right: 32px;
  background: var(--accent-gold);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 4px 14px;
  border-radius: 20px;
}

.tier-header h3 {
  font-family: var(--font-serif);
  font-size: 1.45rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.tier-header p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.tier-price {
  margin-bottom: 32px;
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.price-val {
  font-family: var(--font-serif);
  font-size: 3.2rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
}

.price-type {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.tier-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 40px;
  flex-grow: 1;
  font-size: 0.94rem;
  color: var(--text-secondary);
}

.tier-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  line-height: 1.6;
}

.pricing-card.popular .tier-features li {
  color: var(--text-primary);
}

.btn-tier {
  width: 100%;
  padding: 16px;
  border-radius: var(--radius-xs);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: var(--transition-smooth);
  background: var(--bg-base);
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
}

.btn-tier:hover {
  background: var(--bg-elevated);
  border-color: var(--accent-gold);
  color: var(--accent-gold);
}

.btn-tier-primary {
  background: #16171a;
  color: #ffffff;
  border: 1px solid #16171a;
  box-shadow: 0 4px 20px rgba(22, 23, 26, 0.15);
}

.btn-tier-primary:hover {
  background: var(--accent-gold);
  color: #ffffff;
  border-color: var(--accent-gold);
  box-shadow: 0 8px 30px var(--accent-gold-glow);
}

.guarantee-box {
  max-width: 900px;
  margin: 0 auto;
  background: #ffffff;
  border: 1px solid var(--border-gold-subtle);
  border-radius: var(--radius-md);
  padding: 28px 36px;
  display: flex;
  align-items: center;
  gap: 24px;
  text-align: left;
  box-shadow: 0 6px 25px rgba(0, 0, 0, 0.03);
}

.guarantee-icon {
  font-size: 2.2rem;
  color: var(--accent-gold);
}

.guarantee-text h4 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  margin-bottom: 6px;
  color: var(--text-primary);
}

.guarantee-text p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* FAQ Section */
.faq-section {
  padding: 110px 0;
  background: var(--bg-base);
}

.faq-list {
  max-width: 840px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.faq-item {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 28px 32px;
  text-align: left;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
}

.faq-item h4 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.faq-item p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* Footer */
.site-footer {
  background: #141518;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 60px 0 40px;
  color: #f5f3ef;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 40px;
}

.footer-brand .logo-en {
  color: #ffffff;
}

.footer-brand p {
  font-size: 0.85rem;
  color: #8f94a2;
  margin-top: 8px;
}

.footer-links {
  display: flex;
  gap: 28px;
}

.footer-links a {
  color: #a8adba;
  text-decoration: none;
  font-size: 0.88rem;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: #d4ba85;
}

.copyright {
  text-align: center;
  font-size: 0.8rem;
  color: #6d7280;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 24px;
}

/* Modals */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(18, 19, 22, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal-overlay.active {
  display: flex;
}

.modal-container {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  box-shadow: 0 25px 70px rgba(0, 0, 0, 0.25);
  width: 100%;
  animation: modalFadeIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalFadeIn {
  from { opacity: 0; transform: scale(0.97); }
  to { opacity: 1; transform: scale(1); }
}

.modal-header {
  padding: 18px 24px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title-group {
  display: flex;
  align-items: center;
  gap: 14px;
}

.modal-title-group h3 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-primary);
}

.live-tag {
  background: rgba(157, 123, 56, 0.1);
  color: var(--accent-gold-dark);
  border: 1px solid var(--border-gold-subtle);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 2px 8px;
  border-radius: var(--radius-xs);
}

.device-switch {
  display: flex;
  background: #eae7e0;
  border: 1px solid var(--border-subtle);
  padding: 3px;
  border-radius: 20px;
}

.device-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 5px 14px;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: 16px;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.device-btn.active {
  background: var(--accent-gold);
  color: #ffffff;
}

.btn-close {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 1.8rem;
  line-height: 1;
  cursor: pointer;
  transition: color 0.2s;
}

.btn-close:hover {
  color: var(--text-primary);
}

/* Demo Modal Spec */
.demo-modal-box {
  max-width: 1280px;
  height: 90vh;
  display: flex;
  flex-direction: column;
}

.demo-iframe-container {
  flex-grow: 1;
  background: #000;
  display: flex;
  justify-content: center;
  overflow: hidden;
  transition: var(--transition-smooth);
}

.demo-iframe-container iframe {
  width: 100%;
  height: 100%;
  border: none;
  transition: width 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.demo-iframe-container.mobile-mode iframe {
  width: 414px;
  height: 100%;
  border-left: 1px solid var(--border-subtle);
  border-right: 1px solid var(--border-subtle);
  box-shadow: 0 0 50px rgba(0, 0, 0, 0.8);
}

/* Checkout Modal Spec */
.checkout-modal-box {
  max-width: 540px;
}

.checkout-body {
  padding: 32px;
}

.order-summary {
  background: var(--bg-base);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 20px;
  margin-bottom: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.order-plan-name {
  font-family: var(--font-serif);
  font-size: 1.0rem;
  font-weight: 600;
  color: var(--text-primary);
}

.order-price-val {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--accent-gold);
}

.mock-alert {
  background: rgba(157, 123, 56, 0.08);
  border: 1px solid var(--border-gold-subtle);
  border-radius: var(--radius-xs);
  padding: 12px 16px;
  font-size: 0.84rem;
  color: var(--accent-gold-dark);
  line-height: 1.6;
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 24px;
  text-align: left;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.form-group input {
  width: 100%;
  background: #ffffff;
  border: 1px solid var(--border-medium);
  padding: 14px 16px;
  border-radius: var(--radius-xs);
  color: var(--text-primary);
  font-size: 0.95rem;
}

.form-group input:focus {
  outline: none;
  border-color: var(--accent-gold);
}

.btn-complete-order {
  width: 100%;
  background: #16171a;
  color: #ffffff;
  border: none;
  padding: 16px;
  font-size: 1.0rem;
  font-weight: 600;
  border-radius: var(--radius-xs);
  cursor: pointer;
  transition: var(--transition-smooth);
}

.btn-complete-order:hover {
  background: var(--accent-gold);
}

.btn-stripe-checkout {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 16px 20px;
  background: #635bff;
  color: #ffffff;
  border-radius: var(--radius-xs);
  font-size: 0.98rem;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition-normal);
  box-shadow: 0 4px 15px rgba(99, 91, 255, 0.3);
}

.btn-stripe-checkout:hover {
  background: #7a73ff;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(99, 91, 255, 0.45);
  color: #ffffff;
}

.divider-or {
  text-align: center;
  position: relative;
  margin: 20px 0 16px;
}

.divider-or::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--border-subtle);
}

.divider-or span {
  position: relative;
  background: #ffffff;
  padding: 0 12px;
  font-size: 0.76rem;
  color: var(--text-muted);
}

.btn-complete-order-secondary {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-base);
  border: 1px dashed var(--border-medium);
  border-radius: var(--radius-xs);
  color: var(--text-secondary);
  font-size: 0.82rem;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.btn-complete-order-secondary:hover {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border-color: var(--text-secondary);
}

.order-success-screen {
  text-align: center;
  padding: 10px 0;
}

.success-check {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: rgba(39, 201, 63, 0.12);
  color: #27c93f;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin: 0 auto 20px;
  border: 1px solid rgba(39, 201, 63, 0.3);
}

.order-success-screen h4 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.order-success-screen p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.license-key-box {
  background: var(--bg-base);
  border: 1px dashed var(--accent-gold);
  padding: 12px;
  font-family: monospace;
  font-size: 1.05rem;
  color: var(--accent-gold);
  margin-bottom: 24px;
  border-radius: var(--radius-xs);
}

.btn-download-zip {
  display: block;
  width: 100%;
  background: #16171a;
  color: #ffffff;
  text-decoration: none;
  padding: 16px;
  font-size: 1.0rem;
  font-weight: 600;
  border-radius: var(--radius-xs);
  transition: var(--transition-smooth);
  margin-bottom: 12px;
}

.btn-download-zip:hover {
  background: var(--accent-gold);
}

.download-hint {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Responsive */
@media (max-width: 992px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .asset-banner {
    grid-template-columns: 1fr;
  }
  .demo-wrapper {
    grid-template-columns: 1fr;
  }
  .pricing-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .site-header {
    height: 70px;
  }
  .header-nav {
    display: none;
  }
  .hero-section {
    padding: 130px 0 80px;
  }
  .hero-cta-group {
    flex-direction: column;
    width: 100%;
  }
  .btn-primary-glow, .btn-secondary-border {
    width: 100%;
    justify-content: center;
  }
  .hero-trust-badges {
    flex-wrap: wrap;
    gap: 20px;
  }
  .trust-divider {
    display: none;
  }
  .comparison-grid {
    grid-template-columns: 1fr;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .footer-content {
    flex-direction: column;
    gap: 24px;
    text-align: center;
  }
}