/* ============================================================
   HTML構文&SEOチェックわたるくん — style.css
   ============================================================ */

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

/* ── デザイントークン ── */
:root {
  /* カラー */
  --bg:           #FDF4EA;
  --surface:      #FFFFFF;
  --surface2:     #F5EAD8;
  --border:       rgba(73,167,206,0.15);
  --border2:      rgba(73,167,206,0.30);
  --text:         #2C2C2C;
  --muted:        #7A7A7A;
  --accent:       #49A7CE;
  --accent-dark:  #3388AD;
  --accent-light: rgba(73,167,206,0.10);
  --accent-glow:  rgba(73,167,206,0.20);
  --success:      #2DA870;
  --warning:      #D48A10;
  --danger:       #D64545;
  --success-bg:   rgba(45,168,112,0.09);
  --warning-bg:   rgba(212,138,16,0.09);
  --danger-bg:    rgba(214,69,69,0.09);

  /* 角丸 */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
}

/* ── ベース ── */
body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 400;
  min-height: 100vh;
  line-height: 1.7;
}

/* ============================================================
   ヘッダー
   ============================================================ */
header {
  background: var(--surface);
  border-bottom: 1px solid var(--border2);
  padding: 0 2rem;
}

.header-inner {
  max-width: 860px;
  margin: 0 auto;
  padding: 1.2rem 0;
  display: flex;
  align-items: center;
  gap: 14px;
}

.logo-link {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  text-decoration: none;
}

.logo-img {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  display: block;
}

.logo-text {
  font-family: 'Outfit', sans-serif;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.logo-text small {
  display: block;
  font-size: 0.72rem;
  font-weight: 400;
  color: var(--muted);
  font-family: 'Noto Sans JP', sans-serif;
  letter-spacing: 0;
}

.header-free-badge {
  background: var(--accent);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  padding: 0.28rem 0.75rem;
  border-radius: 999px;
  white-space: nowrap;
  font-family: 'Noto Sans JP', sans-serif;
}

.header-usage-count {
  margin-left: auto;
  font-size: 0.78rem;
  font-weight: 400;
  color: var(--muted);
  font-family: 'Noto Sans JP', sans-serif;
  white-space: nowrap;
}

.header-usage-count strong {
  font-family: 'Outfit', sans-serif;
  font-weight: 600;
  color: var(--accent-dark);
}

/* ============================================================
   ヒーロー
   ============================================================ */
.hero {
  background: linear-gradient(135deg, #FDF4EA 0%, #FEF1DA 50%, #FDF4EA 100%);
  border-bottom: 2px solid rgba(73,167,206,0.15);
  padding: 2.8rem 2rem 0;
  overflow: hidden;
}

.hero-inner {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  align-items: flex-end;
  gap: 1rem;
}

.hero-text {
  flex: 1;
  padding-bottom: 2.5rem;
}

.hero h1 {
  font-family: 'Outfit', sans-serif;
  font-size: clamp(1.5rem, 4vw, 2.1rem);
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
  letter-spacing: -0.02em;
  margin-bottom: 0.9rem;
}

.hero h1 em {
  font-style: normal;
  color: var(--accent);
}

.hero-lead {
  font-size: 0.92rem;
  color: var(--muted);
  line-height: 1.8;
  max-width: 480px;
  margin-bottom: 1.4rem;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.hero-badge {
  display: flex;
  align-items: center;
  gap: 5px;
  background: #fff;
  border: 1px solid var(--border2);
  border-radius: 999px;
  padding: 0.35rem 0.85rem;
  font-size: 0.8rem;
  color: var(--text);
  font-weight: 500;
}

.badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #AAAAAA;
  flex-shrink: 0;
  display: inline-block;
}

.hero-chara {
  flex-shrink: 0;
  width: 300px;
  height: 300px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  overflow: hidden;
}

.hero-chara img {
  width: 300px;
  height: 300px;
  object-fit: contain;
  object-position: bottom;
  display: block;
}

/* ============================================================
   チェックツール本体
   ============================================================ */
.tool-section {
  max-width: 860px;
  margin: 0 auto;
  padding: 2.5rem 2rem;
}

.tool-heading {
  font-family: 'Outfit', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.tool-heading::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 1.1em;
  background: var(--accent);
  border-radius: 2px;
  flex-shrink: 0;
}

/* 入力カード */
.input-card {
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: var(--radius-lg);
  padding: 2rem 2.25rem;
  box-shadow: 0 2px 16px rgba(73,167,206,0.07);
}

.input-card h2 {
  font-family: 'Outfit', sans-serif;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.3rem;
  letter-spacing: -0.01em;
}

.input-card .sub {
  color: var(--muted);
  font-size: 0.875rem;
  margin-bottom: 1.75rem;
}

.field-label {
  display: block;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.45rem;
}

.url-input {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  padding: 0.8rem 1rem;
  color: var(--text);
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  margin-bottom: 1.1rem;
}

.url-input::placeholder { color: #B0B0B0; }

.url-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

/* Basic認証 */
.auth-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  margin-bottom: 1rem;
  user-select: none;
  width: fit-content;
}

.auth-toggle input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
  cursor: pointer;
}

.auth-toggle span {
  font-size: 0.855rem;
  color: var(--muted);
}

.auth-fields {
  display: none;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 1.1rem;
  animation: fadeIn 0.2s ease;
}

.auth-fields.visible { display: grid; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* チェック項目ピル */
.checks-label {
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.6rem;
  display: block;
}

.checks-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.75rem;
}

.check-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0.45rem 1rem;
  border: 1px solid var(--border2);
  border-radius: 999px;
  font-size: 0.84rem;
  cursor: pointer;
  transition: all 0.15s;
  background: transparent;
  color: var(--muted);
  user-select: none;
}

.check-pill.active {
  background: var(--accent-light);
  border-color: var(--accent);
  color: var(--accent-dark);
  font-weight: 500;
}

.check-pill input { display: none; }

/* 実行ボタン */
.btn-run {
  width: 100%;
  padding: 0.9rem;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-family: 'Outfit', sans-serif;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  letter-spacing: 0.03em;
  transition: background 0.15s, transform 0.1s;
}

.btn-run:hover  { background: var(--accent-dark); }
.btn-run:active { transform: scale(0.99); }
.btn-run:disabled { opacity: 0.45; cursor: not-allowed; }

/* ローディング */
#loading {
  display: none;
  text-align: center;
  padding: 3rem 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.spinner {
  width: 28px;
  height: 28px;
  border: 2px solid var(--border2);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  margin: 0 auto 1rem;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* エラーボックス */
#error-box {
  display: none;
  background: var(--danger-bg);
  border: 1px solid rgba(214,69,69,0.25);
  border-radius: var(--radius-sm);
  padding: 1rem 1.25rem;
  margin-top: 1.5rem;
  color: var(--danger);
  font-size: 0.9rem;
}

/* 結果エリア */
#results {
  display: none;
  margin-top: 2rem;
}

.results-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.results-header h3 {
  font-family: 'Outfit', sans-serif;
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
}

.results-url {
  font-size: 0.8rem;
  color: var(--muted);
  word-break: break-all;
}

/* スコアカード */
.score-bar-wrap {
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  box-shadow: 0 2px 12px rgba(73,167,206,0.06);
}

.score-circle {
  flex-shrink: 0;
  width: 76px;
  height: 76px;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 2.5px solid var(--border2);
  font-family: 'Outfit', sans-serif;
}

.score-circle .score-num {
  font-size: 1.65rem;
  font-weight: 600;
  line-height: 1;
}

.score-circle small {
  font-size: 0.68rem;
  color: var(--muted);
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 400;
}

.score-good { border-color: var(--success); color: var(--success); }
.score-warn { border-color: var(--warning); color: var(--warning); }
.score-bad  { border-color: var(--danger);  color: var(--danger);  }

.score-detail { flex: 1; }

.score-detail strong {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
}

.score-detail p {
  font-size: 0.875rem;
  color: var(--muted);
  margin-top: 0.2rem;
}

.progress-bar {
  height: 5px;
  background: var(--border);
  border-radius: 99px;
  overflow: hidden;
  margin-top: 0.8rem;
}

.progress-fill {
  height: 100%;
  border-radius: 99px;
  background: var(--accent);
  transition: width 0.8s cubic-bezier(0.16,1,0.3,1);
}

/* チェック結果セクション */
.section {
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: var(--radius-lg);
  margin-bottom: 1rem;
  overflow: hidden;
  box-shadow: 0 1px 8px rgba(73,167,206,0.05);
}

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.35rem;
  cursor: pointer;
  transition: background 0.15s;
}

.section-head:hover { background: var(--accent-light); }

.section-head-left {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
}

.section-icon {
  width: 30px;
  height: 30px;
  border-radius: var(--radius-sm);
  background: var(--accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
}

.badge {
  font-size: 0.75rem;
  padding: 0.22rem 0.7rem;
  border-radius: 999px;
  font-weight: 500;
}

.badge-ok   { background: var(--success-bg); color: var(--success); }
.badge-warn { background: var(--warning-bg); color: var(--warning); }
.badge-fail { background: var(--danger-bg);  color: var(--danger);  }

.chevron {
  color: var(--muted);
  font-size: 0.75rem;
  transition: transform 0.2s;
}

.chevron.open { transform: rotate(180deg); }

.section-body {
  display: none;
  border-top: 1px solid var(--border);
}

.section-body.open { display: block; }

/* チェック行 */
.check-row {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 0.9rem 1.35rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.92rem;
}

.check-row:last-child { border-bottom: none; }

.check-icon {
  flex-shrink: 0;
  margin-top: 2px;
  font-size: 0.85rem;
  font-weight: 600;
}

.ok   { color: var(--success); }
.warn { color: var(--warning); }
.fail { color: var(--danger);  }

.check-text strong {
  display: block;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 3px;
}

.check-text span {
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.6;
}

/* エラー詳細リスト */
.error-list {
  margin-top: 8px;
  border-top: 1px solid var(--border);
  padding-top: 6px;
}

.error-item {
  font-size: 0.84rem;
  color: var(--muted);
  padding: 4px 0;
  border-bottom: 1px solid var(--border);
  line-height: 1.5;
  word-break: break-all;
}

.error-item:last-child { border-bottom: none; }

/* 画像リンク */
.img-link {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  word-break: break-all;
  font-size: 0.84rem;
}

.img-link:hover { color: var(--accent-dark); }

/* ZIPダウンロードボタン */
.zip-download-wrap {
  margin-top: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.btn-zip-download {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0.6rem 1.1rem;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s;
  width: fit-content;
}

.btn-zip-download:hover    { background: var(--accent-dark); }
.btn-zip-download:disabled { opacity: 0.6; cursor: not-allowed; }

.zip-loading {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.84rem;
  color: var(--muted);
}

.zip-spinner {
  width: 16px;
  height: 16px;
  border: 2px solid var(--border2);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  flex-shrink: 0;
}

/* ============================================================
   コンテンツセクション（できること・使用例）
   ============================================================ */
.content-section {
  max-width: 860px;
  margin: 0 auto;
  padding: 3rem 2rem;
  border-top: 1px solid var(--border);
}

.section-heading {
  font-family: 'Outfit', sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
  margin-bottom: 0.4rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-heading::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 1.2em;
  background: var(--accent);
  border-radius: 2px;
  flex-shrink: 0;
}

.section-lead {
  color: var(--muted);
  font-size: 0.875rem;
  margin-bottom: 1.75rem;
}

/* できることグリッド */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.35rem;
  transition: box-shadow 0.15s;
}

.feature-card:hover {
  box-shadow: 0 4px 16px rgba(73,167,206,0.10);
}

.feature-icon {
  font-size: 1.5rem;
  margin-bottom: 0.6rem;
}

.feature-title {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.4rem;
}

.feature-desc {
  font-size: 0.83rem;
  color: var(--muted);
  line-height: 1.65;
}

/* 使用例リスト */
.usecase-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.usecase-item {
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.35rem;
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.usecase-num {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  background: var(--accent);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.78rem;
  font-weight: 700;
  font-family: 'Outfit', sans-serif;
  margin-top: 1px;
}

.usecase-body strong {
  display: block;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.3rem;
}

.usecase-body p {
  font-size: 0.84rem;
  color: var(--muted);
  line-height: 1.65;
  margin: 0;
}


/* ============================================================
   開発コストテーブル
   ============================================================ */
.cost-table-wrap {
  overflow-x: auto;
}

.cost-table {
  width: 100%;
  max-width: 480px;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.cost-table th,
.cost-table td {
  padding: 0.7rem 1.1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

.cost-table th {
  font-family: 'Outfit', sans-serif;
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  color: var(--muted);
  background: var(--surface2);
  text-transform: uppercase;
}

.cost-table td:nth-child(2),
.cost-table td:nth-child(3) {
  text-align: right;
}

.cost-table th:nth-child(2),
.cost-table th:nth-child(3) {
  text-align: right;
}

.cost-table-total td {
  font-weight: 600;
  color: var(--text);
  background: var(--accent-light);
  border-top: 2px solid var(--border2);
  border-bottom: none;
}

/* ============================================================
   フッター
   ============================================================ */
footer {
  text-align: center;
  font-size: 0.8rem;
  color: var(--muted);
  padding: 2rem;
  border-top: 1px solid var(--border2);
}

/* ============================================================
   レスポンシブ
   ============================================================ */
@media (max-width: 600px) {
  .hero h1 { font-size: 1.4rem; }
  .hero-chara { display: none; }
  .features-grid { grid-template-columns: 1fr; }
  .header-usage-count { display: none; }
}