/* ==========================================================================
   給付金AIシミュレーター スタイルシート (信頼感・清潔感重視デザイン)
   ========================================================================== */

:root {
  /* 信頼・公的機関の印象を与えるカラーパレット */
  --primary-navy: #1e3a8a;       /* 濃紺：信頼・知性 */
  --primary-blue: #2563eb;       /* 爽やかな青 */
  --primary-light: #eff6ff;      /* 薄い青背景 */

  --accent-green: #059669;       /* 落ち着いた緑：安心・安心感 */
  --accent-green-bg: #ecfdf5;    /* 柔らかい緑背景 */
  --accent-green-border: #a7f3d0;

  --accent-amber: #d97706;       /* 警告・比較用のアラートオレンジ */
  --accent-amber-bg: #fffbe6;
  --accent-amber-border: #fde68a;

  --bg-page: #f8fafc;            /* 明るいクリーンなページ背景 */
  --bg-card: #ffffff;            /* 白背景カード */
  --border-color: #e2e8f0;       /* 柔らかい枠線 */

  --text-main: #0f172a;          /* 視認性の高い濃い文字 */
  --text-sub: #475569;           /* 控えめなサブ文字 */
  --text-muted: #64748b;

  --font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 6px;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.07);

  --transition: 0.25s ease;
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-page);
  color: var(--text-main);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 20px;
}

.text-center { text-align: center; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.hidden { display: none !important; }

/* PR Banner (クリーンで透明感ある表記) */
.pr-banner {
  background-color: #f1f5f9;
  color: var(--text-muted);
  font-size: 0.75rem;
  padding: 8px 0;
  text-align: center;
  border-bottom: 1px solid var(--border-color);
}
.pr-badge {
  background-color: #94a3b8;
  color: #ffffff;
  padding: 1px 6px;
  border-radius: 3px;
  font-weight: 700;
  font-size: 0.68rem;
  margin-right: 6px;
}

/* Navbar */
.navbar {
  background: #ffffff;
  padding: 16px 0;
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}
.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.logo {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--primary-navy);
  display: flex;
  align-items: center;
  gap: 8px;
}
.logo-icon {
  color: var(--primary-blue);
}
.nav-tag {
  font-size: 0.78rem;
  background: var(--primary-light);
  color: var(--primary-blue);
  padding: 4px 12px;
  border-radius: 20px;
  border: 1px solid #bfdbfe;
  font-weight: 500;
}

/* Hero Section */
.hero {
  padding: 40px 0 24px;
}
.hero-trust-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #ffffff;
  color: var(--primary-navy);
  font-size: 0.82rem;
  font-weight: 700;
  padding: 6px 16px;
  border-radius: 30px;
  border: 1px solid #cbd5e1;
  box-shadow: var(--shadow-sm);
  margin-bottom: 20px;
}
.hero-title {
  font-size: 1.75rem;
  font-weight: 900;
  color: var(--primary-navy);
  line-height: 1.4;
  margin-bottom: 14px;
  letter-spacing: -0.02em;
}
.hero-title .highlight {
  color: var(--primary-blue);
  background: linear-gradient(transparent 60%, #dbeafe 60%);
}
.hero-sub {
  font-size: 0.92rem;
  color: var(--text-sub);
  line-height: 1.7;
}

/* Card Container */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  box-shadow: var(--shadow-lg);
  margin-bottom: 40px;
}

/* Progress Indicator */
.progress-wrapper {
  margin-bottom: 28px;
}
.progress-bar-bg {
  background: #e2e8f0;
  border-radius: 10px;
  height: 6px;
  overflow: hidden;
  margin-bottom: 8px;
}
.progress-bar-fill {
  height: 100%;
  width: 25%;
  background: var(--primary-blue);
  transition: width 0.3s ease;
}
.progress-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Form Steps */
.form-step {
  display: none;
}
.form-step.active {
  display: block;
}

.step-question {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary-navy);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.step-question i {
  color: var(--primary-blue);
}

/* Option Cards (清潔で選択しやすいモダンカード) */
.option-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 28px;
}
.option-card {
  position: relative;
  cursor: pointer;
}
.option-card input {
  position: absolute;
  opacity: 0;
}
.option-content {
  background: #ffffff;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: var(--transition);
}
.option-card:hover .option-content {
  border-color: #94a3b8;
}
.option-card input:checked + .option-content {
  background: var(--primary-light);
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}
.option-title {
  font-weight: 700;
  font-size: 1rem;
  color: var(--primary-navy);
}
.option-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* Buttons */
.btn-group {
  display: flex;
  gap: 12px;
}
.btn {
  padding: 14px 24px;
  border-radius: var(--radius-md);
  font-size: 0.98rem;
  font-weight: 700;
  cursor: pointer;
  border: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: var(--transition);
  text-decoration: none;
}
.btn-primary {
  background: var(--primary-blue);
  color: #ffffff;
  width: 100%;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
}
.btn-primary:hover {
  background: #1d4ed8;
}
.btn-secondary {
  background: #f1f5f9;
  color: var(--text-sub);
  border: 1px solid var(--border-color);
}
.btn-secondary:hover {
  background: #e2e8f0;
}
.btn-success {
  background: var(--accent-green);
  color: #ffffff;
  width: 100%;
  box-shadow: 0 2px 8px rgba(5, 150, 105, 0.25);
}
.btn-success:hover {
  background: #047857;
}
.btn-link {
  background: none;
  color: var(--text-muted);
  font-size: 0.88rem;
}
.btn-link:hover { color: var(--primary-navy); }

/* Loading State */
.loading-state {
  text-align: center;
  padding: 36px 20px;
}
.spinner-clean {
  width: 44px;
  height: 44px;
  border: 3px solid #e2e8f0;
  border-top: 3px solid var(--primary-blue);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 16px;
}
@keyframes spin {
  100% { transform: rotate(360deg); }
}
.loading-title {
  font-size: 1.1rem;
  color: var(--primary-navy);
  font-weight: 700;
  margin-bottom: 6px;
}
.loading-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.loading-status {
  font-size: 0.82rem;
  color: var(--primary-blue);
  font-weight: 700;
}

/* Result State */
.result-header {
  text-align: center;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 16px;
}
.result-badge-clean {
  background: var(--accent-green-bg);
  color: var(--accent-green);
  border: 1px solid var(--accent-green-border);
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 0.78rem;
  font-weight: 700;
  display: inline-block;
  margin-bottom: 6px;
}
.result-title {
  font-size: 1.35rem;
  color: var(--primary-navy);
  font-weight: 900;
}

/* Comparison Cards (整然とした信頼感のある比較) */
.comparison-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}
.comp-box {
  border-radius: var(--radius-md);
  padding: 20px 16px;
  position: relative;
}
.normal-box {
  background: #f8fafc;
  border: 1px solid var(--border-color);
}
.max-box {
  background: var(--accent-green-bg);
  border: 2px solid var(--accent-green);
}
.badge-recommend-clean {
  position: absolute;
  top: -10px;
  right: 12px;
  background: var(--accent-green);
  color: #ffffff;
  font-size: 0.68rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 10px;
}
.comp-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  display: block;
  margin-bottom: 4px;
}
.comp-amount {
  font-size: 1.45rem;
  font-weight: 900;
  color: var(--text-main);
}
.text-green {
  color: var(--accent-green);
  font-size: 1.6rem;
}
.comp-note {
  font-size: 0.72rem;
  color: var(--text-muted);
  display: block;
  margin-top: 4px;
}

/* Loss Alert (上品で誠実な比較アラート) */
.loss-alert-clean {
  background: var(--accent-amber-bg);
  border: 1px solid var(--accent-amber-border);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  display: flex;
  gap: 16px;
  align-items: center;
  margin-bottom: 24px;
}
.loss-icon-clean {
  font-size: 1.8rem;
  color: var(--accent-amber);
}
.loss-title-clean {
  font-size: 0.85rem;
  font-weight: 700;
  color: #92400e;
}
.loss-amount-clean {
  font-size: 1.75rem;
  font-weight: 900;
  color: var(--accent-amber);
  line-height: 1.2;
}
.loss-desc-clean {
  font-size: 0.78rem;
  color: #78350f;
}

/* Breakdown Box */
.breakdown-box {
  background: #f8fafc;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  margin-bottom: 28px;
}
.breakdown-box h4 {
  font-size: 0.88rem;
  color: var(--primary-navy);
  margin-bottom: 10px;
}
.breakdown-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.breakdown-list li {
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
  border-bottom: 1px dashed var(--border-color);
  padding-bottom: 4px;
}
.bd-val {
  font-weight: 700;
  color: var(--primary-blue);
}

/* CTA Box (温かみのある信頼型導線) */
.cta-box-clean {
  background: #ffffff;
  border: 2px solid var(--accent-green);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  text-align: center;
  box-shadow: var(--shadow-md);
}
.cta-heading {
  font-size: 1.1rem;
  font-weight: 900;
  color: var(--primary-navy);
  margin-bottom: 6px;
}
.cta-sub {
  font-size: 0.82rem;
  color: var(--text-sub);
  margin-bottom: 18px;
}
.btn-line-cta {
  background: #06c755;
  color: #ffffff;
  font-size: 1.05rem;
  font-weight: 900;
  padding: 16px 24px;
  border-radius: 40px;
  box-shadow: 0 4px 12px rgba(6, 199, 85, 0.25);
  width: 100%;
}
.btn-line-cta:hover {
  background: #05b34c;
}
.cta-guarantee-clean {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 10px;
}

/* Info Section (信頼性を高める3つの理由) */
.info-section {
  padding: 20px 0 40px;
}
.section-title {
  font-size: 1.2rem;
  color: var(--primary-navy);
  margin-bottom: 24px;
}
.info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.info-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px 16px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}
.info-icon {
  font-size: 1.6rem;
  color: var(--primary-blue);
  margin-bottom: 10px;
}
.info-card h4 {
  font-size: 0.9rem;
  color: var(--primary-navy);
  margin-bottom: 6px;
}
.info-card p {
  font-size: 0.78rem;
  color: var(--text-sub);
}

/* Footer & Legal */
.footer {
  background: #f1f5f9;
  border-top: 1px solid var(--border-color);
  padding: 40px 0;
  font-size: 0.78rem;
  color: var(--text-muted);
}
.legal-box {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  margin-bottom: 20px;
}
.legal-box h5 {
  font-size: 0.82rem;
  color: var(--primary-navy);
  margin-bottom: 6px;
}
.legal-box p {
  font-size: 0.72rem;
  line-height: 1.6;
}
.legal-box a {
  color: var(--primary-blue);
  text-decoration: none;
}
.legal-box a:hover { text-decoration: underline; }
.footer-links { text-align: center; margin-bottom: 10px; }
.footer-links a { color: var(--text-muted); text-decoration: none; }
.copyright { text-align: center; font-size: 0.72rem; }

/* Responsive */
@media (max-width: 640px) {
  .hero-title { font-size: 1.35rem; }
  .option-grid { grid-template-columns: 1fr; }
  .comparison-grid { grid-template-columns: 1fr; }
  .info-grid { grid-template-columns: 1fr; }
  .loss-alert-clean { flex-direction: column; text-align: center; }
  .btn-line-cta { font-size: 0.92rem; padding: 14px 16px; }
}