/* ========================================
   AiWiLL イベントシミュレーター
   スタイルシート（スマホ最適化）
======================================== */

/* ── 変数 ── */
:root {
  --primary: #1a2b6b;
  --primary-light: #2d4ab8;
  --accent: #ff6b2b;
  --accent-light: #ff8f59;
  --gold: #f5a623;
  --gold-light: #ffc85a;
  --success: #22c55e;
  --success-light: #dcfce7;
  --bg: #f8f9fd;
  --bg-card: #ffffff;
  --text: #1a1a2e;
  --text-sub: #5a6a8a;
  --text-light: #8090b0;
  --border: #e2e8f4;
  --border-focus: #2d4ab8;
  --shadow-sm: 0 2px 8px rgba(26, 43, 107, 0.08);
  --shadow-md: 0 8px 32px rgba(26, 43, 107, 0.12);
  --shadow-lg: 0 20px 60px rgba(26, 43, 107, 0.18);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --transition: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── リセット・ベース ── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

button {
  cursor: pointer;
  font-family: inherit;
  border: none;
  background: none;
}

img {
  max-width: 100%;
  display: block;
}

/* ── ヘッダー ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(26, 43, 107, 0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 900;
  color: #ffffff;
  letter-spacing: 0.05em;
  background: linear-gradient(135deg, #fff 0%, #a8c4ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.logo-img {
  height: 36px;
  width: auto;
  display: block;
  object-fit: contain;
}

.logo-sub {
  font-size: 0.6rem;
  font-weight: 600;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.12em;
  margin-top: 2px;
}

.header-cta {
  background: var(--accent);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 700;
  padding: 8px 20px;
  border-radius: 50px;
  transition: var(--transition);
  letter-spacing: 0.05em;
}

.header-cta:hover {
  background: var(--accent-light);
  transform: translateY(-1px);
}

/* ── ヒーロー ── */
.hero {
  background: linear-gradient(135deg, #1a2b6b 0%, #0f1a44 40%, #1e3a6e 100%);
  padding: 64px 24px 56px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(45,74,184,0.3) 0%, transparent 70%);
  top: -200px;
  right: -100px;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,107,43,0.15) 0%, transparent 70%);
  bottom: -100px;
  left: -50px;
  pointer-events: none;
}

.hero-content {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,107,43,0.2);
  border: 1px solid rgba(255,107,43,0.4);
  color: var(--accent-light);
  font-size: 0.82rem;
  font-weight: 700;
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 20px;
  letter-spacing: 0.05em;
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 900;
  color: #ffffff;
  line-height: 1.25;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.hero-title-sub {
  display: block;
  font-size: clamp(1rem, 2.5vw, 1.3rem);
  font-weight: 400;
  color: rgba(255,255,255,0.75);
  margin-top: 10px;
  letter-spacing: 0.01em;
  line-height: 1.6;
}

.hero-desc {
  color: rgba(255,255,255,0.65);
  font-size: clamp(0.88rem, 2vw, 1rem);
  margin-bottom: 36px;
  line-height: 1.8;
}

.hero-desc strong {
  color: var(--gold-light);
  font-weight: 700;
}

.hero-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, var(--accent) 0%, #e05520 100%);
  color: #fff;
  font-size: 1.1rem;
  font-weight: 700;
  padding: 18px 40px;
  border-radius: 50px;
  transition: var(--transition);
  box-shadow: 0 8px 30px rgba(255,107,43,0.4);
  letter-spacing: 0.04em;
}

.hero-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 40px rgba(255,107,43,0.5);
}

.hero-visual {
  max-width: 900px;
  margin: 48px auto 0;
  position: relative;
  z-index: 1;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-lg);
  padding: 24px 32px;
  backdrop-filter: blur(8px);
}

.stat-item {
  flex: 1;
  text-align: center;
  padding: 8px 16px;
}

.stat-num {
  display: block;
  font-size: 2.4rem;
  font-weight: 900;
  color: var(--gold-light);
  line-height: 1.1;
}

.stat-unit {
  font-size: 1.2rem;
}

.stat-label {
  display: block;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.6);
  margin-top: 4px;
  font-weight: 500;
}

.stat-divider {
  width: 1px;
  height: 50px;
  background: rgba(255,255,255,0.15);
}

/* ── コンテナ ── */
.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ── シミュレーターセクション ── */
.simulator-section {
  padding: 56px 0 80px;
}

/* ── ステップインジケーター ── */
.step-indicator {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 40px;
  gap: 0;
}

.step-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.step-circle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--border);
  color: var(--text-light);
  font-size: 0.95rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  border: 2px solid transparent;
}

.step-item.active .step-circle {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary-light);
  box-shadow: 0 4px 14px rgba(26,43,107,0.3);
}

.step-item.done .step-circle {
  background: var(--success);
  color: #fff;
  border-color: var(--success);
}

.step-item.done .step-circle::before {
  content: '✓';
}

.step-label {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-light);
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.step-item.active .step-label {
  color: var(--primary);
}

.step-line {
  flex: 1;
  height: 2px;
  background: var(--border);
  margin: 0 6px;
  margin-bottom: 22px;
  min-width: 20px;
  transition: var(--transition);
}

/* ── フォームコンテナ ── */
.form-container {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.form-step {
  display: none;
  padding: 40px;
  animation: fadeIn 0.3s ease;
}

.form-step.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.step-header {
  margin-bottom: 32px;
}

.step-number {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--primary-light);
  letter-spacing: 0.12em;
  background: rgba(45,74,184,0.08);
  padding: 4px 12px;
  border-radius: 50px;
  margin-bottom: 10px;
  border: 1px solid rgba(45,74,184,0.2);
}

.step-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.35;
}

.step-desc {
  font-size: 0.88rem;
  color: var(--text-sub);
  margin-top: 8px;
}

/* ── フォームグループ ── */
.form-group {
  margin-bottom: 36px;
}

.form-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 14px;
}

.form-label i {
  color: var(--primary-light);
  width: 18px;
}

.form-label.required::after {
  content: '必須';
  font-size: 0.65rem;
  font-weight: 700;
  background: var(--accent);
  color: #fff;
  padding: 2px 8px;
  border-radius: 50px;
  margin-left: 6px;
}

.optional-badge {
  font-size: 0.68rem;
  font-weight: 600;
  background: rgba(100,120,180,0.12);
  color: var(--text-sub);
  padding: 3px 10px;
  border-radius: 50px;
  margin-left: 6px;
}

/* ── オプショングリッド ── */
.option-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 12px;
}

.option-grid.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.option-grid.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.option-grid.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

/* ── オプションボタン ── */
.option-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 16px 12px;
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-sub);
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
  line-height: 1.35;
  min-height: 82px;
  position: relative;
  overflow: hidden;
}

.option-btn i {
  font-size: 1.4rem;
  color: var(--text-light);
  transition: var(--transition);
  pointer-events: none;
}

.option-btn span {
  pointer-events: none;
}

.option-btn small {
  font-size: 0.7rem;
  font-weight: 400;
  color: var(--text-light);
  display: block;
  pointer-events: none;
}

.option-btn:hover {
  border-color: var(--primary-light);
  color: var(--primary);
  background: rgba(45,74,184,0.04);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.option-btn:hover i {
  color: var(--primary-light);
}

.option-btn.selected {
  border-color: var(--primary);
  background: linear-gradient(135deg, rgba(45,74,184,0.08) 0%, rgba(26,43,107,0.06) 100%);
  color: var(--primary);
  box-shadow: 0 4px 16px rgba(26,43,107,0.15);
}

.option-btn.selected i {
  color: var(--primary);
}

.option-btn.selected::after {
  content: '✓';
  position: absolute;
  top: 6px;
  right: 8px;
  font-size: 0.7rem;
  background: var(--primary);
  color: #fff;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

/* ── 選択サマリー ── */
.selection-summary {
  background: linear-gradient(135deg, rgba(26,43,107,0.04) 0%, rgba(45,74,184,0.04) 100%);
  border: 1px solid rgba(45,74,184,0.15);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-top: 8px;
}

.selection-summary h3 {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 10px;
}

.summary-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.summary-key {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-light);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.summary-val {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
}

/* ── ナビゲーション ── */
.step-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.btn-next {
  display: flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: #fff;
  font-size: 0.95rem;
  font-weight: 700;
  padding: 14px 32px;
  border-radius: 50px;
  transition: var(--transition);
  box-shadow: 0 6px 20px rgba(26,43,107,0.25);
  letter-spacing: 0.04em;
}

.btn-next:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(26,43,107,0.35);
}

.btn-next:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.btn-back {
  display: flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--text-sub);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 14px 20px;
  border-radius: 50px;
  border: 1.5px solid var(--border);
  transition: var(--transition);
}

.btn-back:hover {
  border-color: var(--primary-light);
  color: var(--primary);
}

.btn-simulate {
  display: flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, var(--accent) 0%, #d94d0e 100%);
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  padding: 16px 36px;
  border-radius: 50px;
  transition: var(--transition);
  box-shadow: 0 8px 24px rgba(255,107,43,0.35);
  letter-spacing: 0.04em;
}

.btn-simulate:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 36px rgba(255,107,43,0.45);
}

/* ── 結果エリア ── */
.result-container {
  animation: fadeIn 0.4s ease;
}

.result-header {
  text-align: center;
  margin-bottom: 36px;
}

.result-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--success-light);
  color: var(--success);
  font-size: 0.82rem;
  font-weight: 700;
  padding: 6px 18px;
  border-radius: 50px;
  margin-bottom: 16px;
  border: 1px solid rgba(34,197,94,0.3);
}

.result-title {
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  font-weight: 900;
  color: var(--primary);
  line-height: 1.3;
  margin-bottom: 16px;
}

.result-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.result-tag {
  background: rgba(26,43,107,0.07);
  border: 1px solid rgba(26,43,107,0.15);
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 50px;
}

/* ── 結果イメージ ── */
.result-image-wrap {
  position: relative;
  margin-bottom: 24px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.result-image {
  width: 100%;
  height: 320px;
  object-fit: cover;
  display: block;
}

.result-image-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(10,16,60,0.75));
  padding: 24px 20px 16px;
}

.result-image-overlay span {
  color: rgba(255,255,255,0.9);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

/* ── 結果カード ── */
.result-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  margin-bottom: 20px;
  overflow: hidden;
}

.card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 28px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
}

.card-header i {
  font-size: 1.2rem;
  color: rgba(255,255,255,0.85);
}

.card-header h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0.03em;
}

/* ── 開催プラン要約 ── */
.plan-summary {
  padding: 24px 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.plan-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 14px;
  background: var(--bg);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--primary-light);
}

.plan-item i {
  color: var(--primary-light);
  margin-top: 2px;
  width: 16px;
  flex-shrink: 0;
}

.plan-item span {
  font-size: 0.92rem;
  color: var(--text);
  line-height: 1.5;
}

/* ── 費用表示 ── */
.cost-display {
  padding: 28px;
}

.cost-row {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.cost-item {
  flex: 1;
  text-align: center;
  padding: 20px 16px;
  border-radius: var(--radius-md);
}

.cost-base {
  background: linear-gradient(135deg, #f0f4ff 0%, #e8eeff 100%);
  border: 1px solid rgba(45,74,184,0.2);
}

.cost-actual {
  background: linear-gradient(135deg, #fff7ed 0%, #fef3c7 100%);
  border: 1px solid rgba(245,166,35,0.3);
}

.cost-label {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-sub);
  letter-spacing: 0.06em;
  margin-bottom: 8px;
  text-transform: uppercase;
}

.cost-amount {
  font-size: clamp(1.4rem, 4vw, 2rem);
  font-weight: 900;
  color: var(--primary);
  line-height: 1.2;
  margin-bottom: 6px;
}

.cost-actual .cost-amount {
  color: var(--accent);
}

.cost-sub {
  font-size: 0.7rem;
  color: var(--text-light);
}

.cost-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.cost-arrow i {
  font-size: 1.5rem;
  color: var(--text-light);
}

.cost-compress-label {
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--gold);
  text-align: center;
  line-height: 1.3;
  letter-spacing: 0.02em;
}

.cost-note {
  background: rgba(26,43,107,0.04);
  border-left: 3px solid var(--primary-light);
  padding: 14px 16px;
  font-size: 0.78rem;
  color: var(--text-sub);
  line-height: 1.65;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.cost-note i {
  color: var(--primary-light);
  margin-right: 4px;
}

/* ── イベント内容 ── */
.event-list {
  padding: 24px 28px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 12px;
}

.event-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 14px;
  background: var(--bg);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.event-item:hover {
  background: rgba(45,74,184,0.05);
}

.event-item-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 1px;
}

.event-item-icon i {
  font-size: 0.65rem;
  color: #fff;
}

.event-item span {
  font-size: 0.88rem;
  color: var(--text);
  line-height: 1.5;
}

/* ── 得られる成果 ── */
.outcome-list {
  padding: 24px 28px 16px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 10px;
}

.outcome-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background: var(--success-light);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(34,197,94,0.2);
}

.outcome-item i {
  color: var(--success);
  font-size: 0.85rem;
  flex-shrink: 0;
}

.outcome-item span {
  font-size: 0.85rem;
  font-weight: 600;
  color: #166534;
}

/* ── ROIセクション ── */
.roi-section {
  margin: 0 28px 24px;
  background: linear-gradient(135deg, #fefce8 0%, #fef3c7 100%);
  border: 1px solid rgba(245,166,35,0.3);
  border-radius: var(--radius-md);
  padding: 18px 20px;
}

.roi-title {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--gold);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.roi-content {
  font-size: 0.85rem;
  color: #78350f;
  line-height: 1.7;
}

.roi-content strong {
  color: #d97706;
  font-size: 1rem;
}

/* ── CTA ── */
.result-cta {
  background: linear-gradient(135deg, var(--primary) 0%, #0f1a44 100%);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  text-align: center;
  margin-bottom: 24px;
  position: relative;
  overflow: hidden;
}

.result-cta::before {
  content: '';
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,107,43,0.1) 0%, transparent 70%);
  top: -200px;
  right: -100px;
}

.cta-headline {
  font-size: clamp(1.1rem, 3vw, 1.5rem);
  font-weight: 700;
  color: #ffffff;
  line-height: 1.45;
  margin-bottom: 16px;
  position: relative;
}

.cta-headline i {
  color: var(--gold-light);
  margin-right: 10px;
}

.cta-desc {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.65);
  margin-bottom: 32px;
  line-height: 1.8;
  position: relative;
}

.cta-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-bottom: 20px;
  position: relative;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.92rem;
  font-weight: 700;
  padding: 14px 28px;
  border-radius: 50px;
  transition: var(--transition);
  letter-spacing: 0.03em;
}

.cta-primary {
  background: linear-gradient(135deg, var(--accent) 0%, #d94d0e 100%);
  color: #fff;
  box-shadow: 0 6px 24px rgba(255,107,43,0.4);
}

.cta-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(255,107,43,0.5);
}

.cta-secondary {
  background: rgba(255,255,255,0.12);
  color: #fff;
  border: 1.5px solid rgba(255,255,255,0.25);
  backdrop-filter: blur(8px);
}

.cta-secondary:hover {
  background: rgba(255,255,255,0.2);
  transform: translateY(-2px);
}

.cta-outline {
  background: transparent;
  color: rgba(255,255,255,0.7);
  border: 1.5px solid rgba(255,255,255,0.2);
}

.cta-outline:hover {
  border-color: rgba(255,255,255,0.45);
  color: #fff;
}

.cta-disclaimer {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.4);
  position: relative;
}

.cta-disclaimer::before {
  content: '🔒 ';
}

/* ── ダウンロード＆アクションボタン ── */
.action-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  margin-bottom: 40px;
}

.btn-download {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, #16a34a 0%, #15803d 100%);
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  padding: 16px 36px;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 6px 24px rgba(22,163,74,0.35);
  letter-spacing: 0.04em;
  position: relative;
}

.btn-download:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 32px rgba(22,163,74,0.45);
}

.btn-download:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.dl-badge {
  background: rgba(255,255,255,0.25);
  font-size: 0.65rem;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: 4px;
  letter-spacing: 0.08em;
  margin-left: 2px;
}

/* ── リセットボタン ── */
.reset-wrap {
  text-align: center;
  margin-bottom: 40px;
}

.btn-reset {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--text-light);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 10px 24px;
  border-radius: 50px;
  border: 1.5px solid var(--border);
  transition: var(--transition);
}

.btn-reset:hover {
  border-color: var(--text-sub);
  color: var(--text-sub);
}

/* ── モーダル ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10,16,50,0.6);
  backdrop-filter: blur(4px);
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

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

.modal-box {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 640px;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  animation: slideUp 0.3s ease;
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bg);
  color: var(--text-sub);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  z-index: 1;
}

.modal-close:hover {
  background: var(--border);
  color: var(--text);
}

.modal-header {
  padding: 28px 28px 20px;
  border-bottom: 1px solid var(--border);
}

.modal-header h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
}

.modal-header p {
  font-size: 0.85rem;
  color: var(--text-sub);
}

.modal-body {
  padding: 24px 28px 28px;
}

.carry-over-box {
  background: rgba(26,43,107,0.04);
  border: 1px solid rgba(26,43,107,0.12);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  margin-bottom: 20px;
}

.carry-over-box h4 {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.carry-over-item {
  display: flex;
  gap: 8px;
  font-size: 0.82rem;
  margin-bottom: 6px;
}

.carry-over-item .co-key {
  font-weight: 700;
  color: var(--text-sub);
  min-width: 80px;
  flex-shrink: 0;
}

.carry-over-item .co-val {
  color: var(--text);
}

/* ── コンタクトフォーム ── */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-field label {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-sub);
}

.form-field .req {
  color: var(--accent);
}

.form-field input,
.form-field textarea {
  padding: 12px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.9rem;
  color: var(--text);
  transition: var(--transition);
  outline: none;
  background: var(--bg);
}

.form-field input:focus,
.form-field textarea:focus {
  border-color: var(--border-focus);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(45,74,184,0.1);
}

.form-field textarea {
  resize: vertical;
  min-height: 80px;
}

.form-submit {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: linear-gradient(135deg, var(--accent) 0%, #d94d0e 100%);
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  padding: 16px;
  border-radius: 50px;
  transition: var(--transition);
  box-shadow: 0 6px 20px rgba(255,107,43,0.3);
}

.form-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(255,107,43,0.4);
}

.form-note {
  font-size: 0.75rem;
  color: var(--text-light);
  text-align: center;
}

.form-note i {
  color: var(--success);
}

.form-success {
  text-align: center;
  padding: 40px 20px;
}

.form-success i {
  font-size: 3rem;
  color: var(--success);
  margin-bottom: 16px;
  display: block;
}

.form-success h4 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}

.form-success p {
  font-size: 0.9rem;
  color: var(--text-sub);
  margin-bottom: 24px;
}

.btn-back-modal {
  background: var(--primary);
  color: #fff;
  font-size: 0.9rem;
  font-weight: 700;
  padding: 12px 32px;
  border-radius: 50px;
  transition: var(--transition);
}

.btn-back-modal:hover {
  background: var(--primary-light);
}

/* ── フッター ── */
.site-footer {
  background: var(--primary);
  padding: 32px 24px;
}

.footer-inner {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.footer-inner .logo-text {
  font-size: 1.3rem;
  font-weight: 900;
  color: rgba(255,255,255,0.9);
  -webkit-text-fill-color: rgba(255,255,255,0.9);
  display: block;
  margin-bottom: 10px;
}

.footer-logo {
  margin-bottom: 12px;
}

.footer-logo-img {
  height: 32px;
  width: auto;
  display: inline-block;
  object-fit: contain;
  opacity: 0.9;
}

.footer-copy {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.4);
  margin-bottom: 8px;
}

.footer-disclaimer {
  font-size: 0.72rem;
  color: rgba(255,255,255,0.3);
  line-height: 1.6;
}

/* ── ユーティリティ ── */
.pc-only {
  display: inline;
}

/* ========================================
   レスポンシブ（スマホ最適化）
======================================== */

@media (max-width: 768px) {
  .hero {
    padding: 44px 20px 40px;
  }

  .hero-stats {
    padding: 18px 20px;
    gap: 0;
  }

  .stat-num {
    font-size: 1.8rem;
  }

  .stat-label {
    font-size: 0.7rem;
  }

  .form-step {
    padding: 28px 20px;
  }

  .option-grid.grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .option-grid.grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .option-grid.grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }

  .option-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .option-btn {
    min-height: 72px;
    padding: 12px 8px;
    font-size: 0.82rem;
  }

  .option-btn i {
    font-size: 1.2rem;
  }

  .cost-row {
    flex-direction: column;
    gap: 12px;
  }

  .cost-arrow {
    flex-direction: row;
    justify-content: center;
  }

  .cost-arrow i {
    transform: rotate(90deg);
  }

  .cost-compress-label {
    display: none;
  }

  .result-image {
    height: 220px;
  }

  .event-list,
  .outcome-list {
    grid-template-columns: 1fr;
  }

  .result-cta {
    padding: 36px 20px;
  }

  .cta-buttons {
    flex-direction: column;
  }

  .cta-btn {
    justify-content: center;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .summary-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .step-indicator {
    gap: 0;
  }

  .step-circle {
    width: 32px;
    height: 32px;
    font-size: 0.82rem;
  }

  .step-label {
    font-size: 0.6rem;
  }

  .pc-only {
    display: none;
  }

  .modal-box {
    margin: 10px;
  }
}

@media (max-width: 480px) {
  .header-inner {
    padding: 0 16px;
  }

  .logo-sub {
    display: none;
  }

  .hero-btn {
    font-size: 1rem;
    padding: 16px 28px;
  }

  .step-title {
    font-size: 1.2rem;
  }

  .step-nav {
    gap: 12px;
  }

  .btn-next,
  .btn-simulate {
    padding: 13px 24px;
    font-size: 0.88rem;
  }

  .btn-back {
    padding: 13px 14px;
    font-size: 0.82rem;
  }

  .card-header {
    padding: 16px 20px;
  }

  .plan-summary,
  .cost-display {
    padding: 20px;
  }

  .event-list,
  .outcome-list {
    padding: 20px;
  }

  .roi-section {
    margin: 0 20px 20px;
  }

  .carry-over-box,
  .modal-body {
    padding: 16px;
  }

  .modal-header {
    padding: 20px 20px 16px;
  }
}

/* ── アニメーション ── */
.pulse {
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

.shimmer {
  background: linear-gradient(90deg, var(--bg) 25%, var(--border) 50%, var(--bg) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* スクロールバーカスタマイズ */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--bg);
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-light);
}