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

:root {
  --navy: #0d1b40;
  --navy-mid: #1a2f6b;
  --navy-light: #2a4494;
  --accent: #3d6ef5;
  --accent-light: #6b8fff;
  --seller: #1e6fa8;
  --seller-light: #e8f4fc;
  --buyer: #0f7d5f;
  --buyer-light: #e8f7f2;
  --gold: #f5a623;
  --text: #1a1a2e;
  --text-muted: #6b7280;
  --border: #d1d5db;
  --bg: #f0f4ff;
  --white: #ffffff;
  --radius: 12px;
  --shadow: 0 4px 20px rgba(13, 27, 64, 0.12);
}

body {
  font-family: 'Hiragino Kaku Gothic ProN', 'Noto Sans JP', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

/* ===== ヘッダー ===== */
header {
  background: #ffffff;
  border-bottom: 1px solid #e8e8e8;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  padding: 0 2rem;
  height: 68px;
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 0;
}
.logo-link {
  text-decoration: none;
  flex-shrink: 0;
  display: flex;
  align-items: center;
}
.logo-img {
  height: 44px;
  width: auto;
  display: block;
}
.header-service-name {
  font-size: 0.8rem;
  color: #999;
  border-left: 1px solid #ddd;
  padding-left: 1.25rem;
  margin-left: 1.25rem;
}

/* ===== メイン ===== */
.main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 24px 64px;
}

/* ===== フォームイントロ ===== */
.form-intro {
  text-align: center;
  margin-bottom: 36px;
}
.form-intro h1 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 10px;
}
.form-intro p {
  color: var(--text-muted);
  font-size: 1rem;
}

/* ===== 2カラムグリッド ===== */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 32px;
}
@media (max-width: 900px) {
  .form-grid { grid-template-columns: 1fr; }
}

/* ===== カード ===== */
.form-card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.card-header {
  padding: 18px 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.seller-header {
  background: linear-gradient(135deg, var(--seller) 0%, #2980b9 100%);
  color: var(--white);
}
.buyer-header {
  background: linear-gradient(135deg, var(--buyer) 0%, #27ae60 100%);
  color: var(--white);
}
.card-header h2 { font-size: 1.15rem; font-weight: 700; }
.card-icon { font-size: 1.4rem; }
.card-body { padding: 24px; }

/* ===== フォーム要素 ===== */
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 6px;
}
.required { color: #ef4444; }

.url-hint {
  font-weight: 400;
  color: var(--text-muted);
  font-size: 0.78rem;
}

.form-group input[type="url"] {
  width: 100%;
  padding: 10px 12px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: 0.9rem;
  font-family: inherit;
  color: var(--text);
  background: var(--white);
  transition: border-color 0.2s;
}
.form-group input[type="url"]:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(61, 110, 245, 0.12);
}

.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: 0.9rem;
  font-family: inherit;
  color: var(--text);
  background: var(--white);
  transition: border-color 0.2s;
}
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(61, 110, 245, 0.12);
}
.form-group textarea { resize: vertical; }

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

/* ===== チェックボックス・ラジオ ===== */
.checkbox-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}
.checkbox-item, .radio-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.83rem;
  cursor: pointer;
  padding: 4px;
  border-radius: 6px;
  transition: background 0.15s;
}
.checkbox-item:hover, .radio-item:hover { background: var(--bg); }
.checkbox-item input, .radio-item input { cursor: pointer; accent-color: var(--accent); }

.radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* ===== 送信ボタン ===== */
.submit-area {
  text-align: center;
  margin-top: 8px;
}
.btn-diagnose {
  background: linear-gradient(135deg, var(--accent) 0%, var(--navy-mid) 100%);
  color: var(--white);
  border: none;
  padding: 16px 56px;
  font-size: 1.1rem;
  font-weight: 700;
  border-radius: 50px;
  cursor: pointer;
  box-shadow: 0 6px 24px rgba(61,110,245,0.35);
  transition: transform 0.15s, box-shadow 0.15s;
  letter-spacing: 0.05em;
}
.btn-diagnose:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 32px rgba(61,110,245,0.45);
}
.btn-diagnose:active { transform: translateY(0); }
.btn-icon { margin-right: 4px; }

/* ===== プログレス ===== */
.hidden { display: none !important; }

.progress-section {
  display: flex;
  justify-content: center;
  padding: 60px 0;
}
.progress-card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 48px 64px;
  text-align: center;
  min-width: 400px;
}
.progress-card h2 {
  font-size: 1.4rem;
  color: var(--navy);
  margin: 20px 0 28px;
}
.spinner {
  width: 60px;
  height: 60px;
  border: 5px solid #e5e7eb;
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
  margin: 0 auto;
}
@keyframes spin { to { transform: rotate(360deg); } }

.progress-steps { display: flex; flex-direction: column; gap: 12px; }
.step {
  padding: 10px 16px;
  border-radius: 8px;
  background: var(--bg);
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: all 0.3s;
}
.step.active {
  background: linear-gradient(135deg, var(--accent) 0%, var(--navy-mid) 100%);
  color: var(--white);
  font-weight: 600;
  transform: scale(1.02);
}
.step.done {
  background: #d1fae5;
  color: #065f46;
}

/* ===== 結果セクション ===== */
.result-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}
.result-header h2 { font-size: 1.6rem; font-weight: 700; color: var(--navy); }
.btn-retry {
  background: transparent;
  border: 2px solid var(--accent);
  color: var(--accent);
  padding: 8px 20px;
  border-radius: 50px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
  transition: all 0.15s;
}
.btn-retry:hover { background: var(--accent); color: var(--white); }

/* ===== スコア概要 ===== */
.score-overview {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 24px;
  margin-bottom: 28px;
}
@media (max-width: 700px) {
  .score-overview { grid-template-columns: 1fr; }
}

.total-score-card {
  background: linear-gradient(160deg, var(--navy) 0%, var(--navy-mid) 100%);
  color: var(--white);
  border-radius: var(--radius);
  padding: 36px 24px;
  text-align: center;
  box-shadow: var(--shadow);
}
.score-label { font-size: 0.9rem; opacity: 0.8; margin-bottom: 8px; letter-spacing: 0.1em; }
.score-number {
  font-size: 5rem;
  font-weight: 900;
  line-height: 1;
  background: linear-gradient(135deg, #fff 0%, #a8b8e8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.score-rank {
  font-size: 2rem;
  font-weight: 800;
  color: var(--gold);
  margin: 8px 0;
}
.score-desc { font-size: 0.85rem; opacity: 0.75; }

.radar-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  justify-content: center;
}
#radar-chart { max-height: 280px; }

/* ===== 5軸グリッド ===== */
.axes-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  margin-bottom: 28px;
}
@media (max-width: 900px) {
  .axes-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 500px) {
  .axes-grid { grid-template-columns: 1fr; }
}

.axis-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 20px 16px;
  box-shadow: var(--shadow);
  text-align: center;
}
.axis-name {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 10px;
  line-height: 1.3;
}
.axis-score {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 6px;
}
.axis-bar-bg {
  height: 6px;
  background: #e5e7eb;
  border-radius: 3px;
  margin-bottom: 10px;
  overflow: hidden;
}
.axis-bar {
  height: 100%;
  border-radius: 3px;
  transition: width 1s ease-out;
}
.axis-comment { font-size: 0.75rem; color: var(--text-muted); line-height: 1.4; }

/* スコアに応じた色 */
.score-s, .score-a { color: #059669; }
.score-a { color: #10b981; }
.score-b { color: #d97706; }
.score-c { color: #ea580c; }
.score-d { color: #dc2626; }

.bar-high { background: linear-gradient(90deg, #10b981, #34d399); }
.bar-mid  { background: linear-gradient(90deg, #f59e0b, #fcd34d); }
.bar-low  { background: linear-gradient(90deg, #ef4444, #f87171); }

/* ===== コメントセクション ===== */
.comment-section { display: flex; flex-direction: column; gap: 20px; }
.comment-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}
.comment-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 12px;
}
.comment-card p { color: var(--text); line-height: 1.8; }
.comment-card ul { padding-left: 4px; display: flex; flex-direction: column; gap: 8px; }
.comment-card li {
  list-style: none;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 0.9rem;
}

.strength-card { border-left: 4px solid #10b981; }
.strength-card li { background: #f0fdf4; color: #065f46; }
.concern-card { border-left: 4px solid #f59e0b; }
.concern-card li { background: #fffbeb; color: #92400e; }
.advice-card { border-left: 4px solid var(--accent); background: linear-gradient(135deg, #eff6ff 0%, #f0f4ff 100%); }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 700px) { .two-col { grid-template-columns: 1fr; } }

/* ===== フッター ===== */
footer {
  background: #3a3a3a;
  padding: 2.5rem 2rem 2rem;
  margin-top: 4rem;
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
}
.footer-logo {
  margin-bottom: 1.5rem;
  text-align: center;
}
.footer-logo-img {
  height: 26px;
  width: auto;
  display: inline-block;
  filter: brightness(0) invert(1);
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer-spacer { display: none; }
.footer-nav {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}
.footer-nav a {
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  font-size: 0.83rem;
  transition: color 0.2s;
}
.footer-nav a:hover { color: #ffffff; }
.footer-copy {
  flex: 1;
  text-align: right;
  color: rgba(255,255,255,0.45);
  font-size: 0.78rem;
}