/* ==========================================================
   chainstorenavi-section.css
   チェーンストアナビ ランディングページ用 CSS
   retailingworks.co.jp 埋め込み用
   ========================================================== */

/* ===== CSS変数（既存サイトと競合する場合は .csn- プレフィクスの変数に変更可） ===== */
.csn-root {
  --csn-navy: #1E2D45;
  --csn-navy-deep: #141F33;
  --csn-navy-light: #253755;
  --csn-accent: #C9956B;
  --csn-accent-light: #E2B88A;
  --csn-white: #FFFFFF;
  --csn-gray-100: #F5F6F8;
  --csn-gray-200: #E2E5EA;
  --csn-gray-400: #9CA3AF;
  --csn-gray-600: #6B7280;
  --csn-text: #1E2D45;
  --csn-text-light: #8B95A5;
  --csn-teal: #0891B2;
  --csn-cyan: #06B6D4;
  --csn-green: #10B981;
  --csn-amber: #F59E0B;
  --csn-purple: #A855F7;
  --csn-red: #EF4444;
}

/* ===== HERO ===== */
.csn-root .csn-hero {
  background: linear-gradient(160deg, var(--csn-navy-deep) 0%, var(--csn-navy) 50%, var(--csn-navy-light) 100%);
  padding: 80px 40px 60px;
  position: relative;
  overflow: hidden;
}
.csn-root .csn-hero::before {
  content: ''; position: absolute; top: -50%; right: -20%; width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(201,149,107,.08) 0%, transparent 70%);
  pointer-events: none;
}
.csn-root .csn-hero-inner { max-width: 1100px; margin: 0 auto; position: relative; z-index: 1; }

.csn-root .csn-hero-badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(201,149,107,.12); border: 1px solid rgba(201,149,107,.25);
  color: var(--csn-accent-light); font-size: 12px; font-weight: 600; letter-spacing: .08em;
  padding: 6px 16px; border-radius: 20px; margin-bottom: 24px;
}
.csn-root .csn-hero-badge::before { content: '⭐'; }

.csn-root .csn-hero h1 {
  font-size: 3rem; font-weight: 800; color: var(--csn-white); line-height: 1.3;
  margin-bottom: 16px; letter-spacing: -.02em;
}
.csn-root .csn-hero h1 .accent { color: var(--csn-accent-light); }
.csn-root .csn-hero .subtitle {
  font-size: 1.15rem; color: rgba(255,255,255,.65); max-width: 700px;
  margin-bottom: 40px; line-height: 1.8;
}

/* 渥美俊一 クオート */
.csn-root .atsumi-quote {
  background: rgba(168,85,247,.06); border: 1px solid rgba(168,85,247,.2);
  border-radius: 12px; padding: 28px 32px; max-width: 900px; margin-bottom: 32px;
  position: relative;
}
.csn-root .atsumi-quote::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--csn-purple), var(--csn-amber), var(--csn-purple));
  border-radius: 12px 12px 0 0;
}
.csn-root .atsumi-quote p {
  font-size: .95rem; line-height: 2; color: rgba(255,255,255,.85);
  text-align: justify;
}
.csn-root .atsumi-quote .author {
  text-align: right; font-size: .85rem; color: var(--csn-amber); font-weight: 600; margin-top: 12px;
}

/* CTA buttons */
.csn-root .csn-hero-cta { display: flex; gap: 16px; flex-wrap: wrap; }
.csn-root .btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--csn-accent); color: var(--csn-white); padding: 14px 32px; border-radius: 8px;
  text-decoration: none; font-size: 15px; font-weight: 600; transition: all .2s;
  box-shadow: 0 4px 16px rgba(201,149,107,.3);
}
.csn-root .btn-primary:hover { background: var(--csn-accent-light); transform: translateY(-1px); box-shadow: 0 6px 20px rgba(201,149,107,.4); }
.csn-root .btn-secondary {
  display: inline-flex; align-items: center; gap: 8px;
  background: transparent; color: rgba(255,255,255,.8); padding: 14px 32px; border-radius: 8px;
  text-decoration: none; font-size: 15px; font-weight: 500; border: 1px solid rgba(255,255,255,.2);
  transition: all .2s;
}
.csn-root .btn-secondary:hover { border-color: rgba(255,255,255,.4); color: var(--csn-white); }

/* ===== SCREENSHOTS SHOWCASE ===== */
.csn-root .csn-showcase {
  background: var(--csn-navy-deep);
  padding: 80px 40px 100px;
}
.csn-root .showcase-inner { max-width: 1200px; margin: 0 auto; }
.csn-root .showcase-header { text-align: center; margin-bottom: 60px; }
.csn-root .showcase-header h2 { font-size: 2rem; font-weight: 700; color: var(--csn-white); margin-bottom: 12px; }
.csn-root .showcase-header p { font-size: 1rem; color: rgba(255,255,255,.55); max-width: 600px; margin: 0 auto; }

.csn-root .showcase-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px 32px;
}
.csn-root .showcase-item {
  background: transparent;
  border-radius: 0;
  overflow: visible;
  transition: all .3s;
  border: none;
  box-shadow: none;
}
.csn-root .showcase-item:hover { box-shadow: none; transform: none; }
.csn-root .showcase-item.featured { grid-column: 1 / -1; }

/* Featured: ナビゲーター（全画面表示） */
.csn-root .featured .screen-frame {
  background: #0a0f1a;
  position: relative;
  overflow: hidden;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.1);
  box-shadow: 0 20px 60px rgba(0,0,0,.5), 0 0 40px rgba(201,149,107,.08);
}
.csn-root .featured .screen-frame::before {
  content: '';
  display: block;
  padding-top: 62%;
}
.csn-root .featured .screen-frame iframe {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  border: none;
  pointer-events: none;
}

/* カードファン: 3枚重ねスタック */
.csn-root .screen-fan-container {
  position: relative;
  width: 100%;
  padding-top: 62%;
  perspective: 1200px;
}
.csn-root .screen-fan-container .fan-card {
  position: absolute;
  border: none;
  pointer-events: none;
  border-radius: 8px;
  overflow: hidden;
  transition: all .6s cubic-bezier(.25,.46,.45,.94);
}
.csn-root .fan-card iframe,
.csn-root .fan-card img {
  width: 100%; height: 100%;
  border: none;
  pointer-events: none;
  display: block;
  object-fit: cover;
}
.csn-root .featured .screen-frame img {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  border: none;
  pointer-events: none;
  object-fit: cover;
}

/* 奥のカード */
.csn-root .fan-card.fan-back {
  width: 88%; height: 78%;
  top: 0; right: -4%;
  transform: rotate(6deg);
  z-index: 1;
  box-shadow: 0 4px 20px rgba(0,0,0,.4);
  opacity: 0.6;
  filter: blur(0.8px) brightness(0.75);
  border: 2px solid rgba(255,255,255,.1);
}
/* 中間のカード */
.csn-root .fan-card.fan-mid {
  width: 88%; height: 78%;
  top: 6%; left: -3%;
  transform: rotate(-4deg);
  z-index: 2;
  box-shadow: 0 6px 24px rgba(0,0,0,.5);
  opacity: 0.75;
  filter: blur(0.4px) brightness(0.82);
  border: 2px solid rgba(255,255,255,.12);
}
/* 手前のカード */
.csn-root .fan-card.fan-front {
  width: 88%; height: 78%;
  top: 12%; left: 6%;
  transform: rotate(-0.5deg);
  z-index: 3;
  box-shadow: 0 12px 40px rgba(0,0,0,.6), 0 0 0 1px rgba(255,255,255,.15);
  opacity: 1;
  filter: brightness(0.92);
  border: 2px solid rgba(255,255,255,.18);
}

/* ホバーエフェクト */
.csn-root .showcase-item:hover .fan-card.fan-front {
  transform: rotate(0deg) translateY(-4px) scale(1.01);
  box-shadow: 0 20px 50px rgba(0,0,0,.7), 0 0 0 1px rgba(201,149,107,.3);
  opacity: 1;
  filter: brightness(1);
}
.csn-root .showcase-item:hover .fan-card.fan-mid {
  transform: rotate(-6deg) translateX(-8px);
  opacity: 0.6;
}
.csn-root .showcase-item:hover .fan-card.fan-back {
  transform: rotate(8deg) translateX(8px);
  opacity: 0.45;
}

/* グラデーションオーバーレイ */
.csn-root .screen-fan-container::after {
  content: '';
  position: absolute;
  bottom: 0; left: -10%; right: -10%;
  height: 30%;
  background: linear-gradient(to top, var(--csn-navy-deep) 5%, transparent 100%);
  z-index: 5;
  pointer-events: none;
}

/* showcase info */
.csn-root .showcase-info { padding: 16px 4px 0; }
.csn-root .showcase-label {
  display: inline-block;
  font-size: 11px; font-weight: 700; letter-spacing: .06em;
  padding: 3px 10px; border-radius: 4px; margin-bottom: 8px;
}
.csn-root .label-check { background: rgba(16,185,129,.15); color: var(--csn-green); }
.csn-root .label-do { background: rgba(6,182,212,.15); color: var(--csn-cyan); }
.csn-root .label-what { background: rgba(168,85,247,.15); color: var(--csn-purple); }
.csn-root .label-learn { background: rgba(245,158,11,.15); color: var(--csn-amber); }
.csn-root .label-voice { background: rgba(239,68,68,.15); color: var(--csn-red); }

/* Featured用（白背景） */
.csn-root .featured .showcase-info { padding: 20px 24px; background: var(--csn-white); border-radius: 0 0 12px 12px; }
.csn-root .featured .showcase-info h3 { font-size: 1.1rem; font-weight: 700; color: var(--csn-navy); margin-bottom: 6px; }
.csn-root .featured .showcase-info p { font-size: .88rem; color: var(--csn-gray-600); line-height: 1.6; }

/* カードファン用（ダーク背景） */
.csn-root .showcase-info h3 { font-size: 1.1rem; font-weight: 700; color: var(--csn-white); margin-bottom: 6px; }
.csn-root .showcase-info p { font-size: .88rem; color: rgba(255,255,255,.5); line-height: 1.6; }

/* ===== FEATURES ===== */
.csn-root .csn-features {
  padding: 80px 40px;
  background: var(--csn-white);
}
.csn-root .features-inner { max-width: 1100px; margin: 0 auto; }
.csn-root .features-header { text-align: center; margin-bottom: 60px; }
.csn-root .features-header h2 { font-size: 2rem; font-weight: 700; color: var(--csn-navy); margin-bottom: 12px; }
.csn-root .features-header p { font-size: 1rem; color: var(--csn-gray-600); }

.csn-root .features-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px;
}
.csn-root .feature-card {
  padding: 32px; border-radius: 16px;
  background: var(--csn-gray-100); border: 1px solid var(--csn-gray-200);
  transition: all .3s;
}
.csn-root .feature-card:hover { border-color: var(--csn-accent); box-shadow: 0 8px 24px rgba(201,149,107,.1); }
.csn-root .feature-icon {
  width: 48px; height: 48px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; margin-bottom: 16px;
}
.csn-root .feature-card h3 { font-size: 1.05rem; font-weight: 700; color: var(--csn-navy); margin-bottom: 8px; }
.csn-root .feature-card p { font-size: .88rem; color: var(--csn-gray-600); line-height: 1.7; }

/* ===== FLOW SECTION (WWHDC) ===== */
.csn-root .csn-flow-section {
  padding: 80px 40px;
  background: var(--csn-navy);
}
.csn-root .flow-inner { max-width: 1000px; margin: 0 auto; text-align: center; }
.csn-root .flow-inner h2 { font-size: 1.8rem; font-weight: 700; color: var(--csn-white); margin-bottom: 12px; }
.csn-root .flow-inner .flow-sub { color: rgba(255,255,255,.6); font-size: .95rem; margin-bottom: 48px; }

.csn-root .flow-steps { display: flex; gap: 4px; justify-content: center; flex-wrap: wrap; }
.csn-root .flow-step {
  flex: 1; min-width: 140px; max-width: 180px;
  padding: 24px 16px;
  background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.08);
  border-radius: 12px; position: relative;
  transition: all .3s;
}
.csn-root .flow-step:hover { background: rgba(255,255,255,.08); border-color: rgba(201,149,107,.3); }
.csn-root .flow-step .step-icon { font-size: 28px; margin-bottom: 8px; }
.csn-root .flow-step .step-label { font-size: .8rem; font-weight: 700; color: var(--csn-accent-light); letter-spacing: .05em; margin-bottom: 4px; }
.csn-root .flow-step .step-name { font-size: 1rem; font-weight: 700; color: var(--csn-white); margin-bottom: 4px; }
.csn-root .flow-step .step-desc { font-size: .75rem; color: rgba(255,255,255,.5); }
.csn-root .flow-arrow { display: flex; align-items: center; color: rgba(255,255,255,.25); font-size: 20px; padding: 0 4px; }

/* ===== PRICING TEASER ===== */
.csn-root .csn-pricing {
  padding: 80px 40px;
  background: var(--csn-gray-100);
}
.csn-root .pricing-inner { max-width: 800px; margin: 0 auto; text-align: center; }
.csn-root .pricing-inner h2 { font-size: 1.8rem; font-weight: 700; color: var(--csn-navy); margin-bottom: 12px; }
.csn-root .pricing-inner .pricing-sub { font-size: 1rem; color: var(--csn-gray-600); margin-bottom: 40px; }

.csn-root .pricing-card {
  background: var(--csn-white); border-radius: 16px; padding: 48px;
  box-shadow: 0 4px 24px rgba(0,0,0,.06);
  border: 2px solid var(--csn-gray-200);
}
.csn-root .pricing-card .price { font-size: 2.5rem; font-weight: 800; color: var(--csn-navy); }
.csn-root .pricing-card .price span { font-size: 1rem; font-weight: 500; color: var(--csn-gray-600); }
.csn-root .pricing-card .price-note { font-size: .85rem; color: var(--csn-gray-400); margin: 8px 0 24px; }
.csn-root .pricing-features { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-bottom: 32px; }
.csn-root .pricing-features .pf {
  background: var(--csn-gray-100); padding: 6px 16px; border-radius: 20px;
  font-size: .82rem; color: var(--csn-gray-600); font-weight: 500;
}

/* ===== CTA ===== */
.csn-root .csn-cta {
  padding: 80px 40px;
  background: linear-gradient(135deg, var(--csn-navy-deep), var(--csn-navy));
  text-align: center;
}
.csn-root .csn-cta h2 { font-size: 2rem; font-weight: 700; color: var(--csn-white); margin-bottom: 12px; }
.csn-root .csn-cta p { font-size: 1rem; color: rgba(255,255,255,.6); margin-bottom: 32px; max-width: 600px; margin-left: auto; margin-right: auto; }
.csn-root .csn-cta .btn-primary { font-size: 16px; padding: 16px 40px; }

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .csn-root .csn-hero h1 { font-size: 2rem; }
  .csn-root .showcase-grid { grid-template-columns: 1fr; }
  .csn-root .features-grid { grid-template-columns: 1fr; }
  .csn-root .flow-steps { flex-direction: column; align-items: center; }
  .csn-root .flow-arrow { transform: rotate(90deg); }
  .csn-root .csn-hero,
  .csn-root .csn-showcase,
  .csn-root .csn-features,
  .csn-root .csn-flow-section,
  .csn-root .csn-pricing,
  .csn-root .csn-cta { padding: 48px 20px; }
  .csn-root .csn-pricing [style*="grid-template-columns:1fr 1fr"] { grid-template-columns: 1fr !important; }
}