/* FrimaCalc — ウィザード形式レスポンシブデザイン */

:root {
  --color-primary: #4a6cf7;
  --color-primary-dark: #3b5de7;
  --color-profit: #16a34a;
  --color-profit-bg: #f0fdf4;
  --color-loss: #dc2626;
  --color-loss-bg: #fef2f2;
  --color-bg: #f8fafc;
  --color-card: #ffffff;
  --color-border: #e2e8f0;
  --color-text: #1e293b;
  --color-text-sub: #64748b;
  --color-input-bg: #f1f5f9;
  --radius: 12px;
  --radius-sm: 8px;
}

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

body {
  font-family: 'Noto Sans JP', 'Helvetica Neue', 'Hiragino Sans', 'Hiragino Kaku Gothic ProN', Arial, Meiryo, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-text-size-adjust: 100%;
}

.container {
  max-width: 480px;
  margin: 0 auto;
  padding: 16px;
  padding-bottom: 32px;
}

/* ヘッダー */
.header { text-align: center; padding: 20px 0 12px; }
.header h1 { font-size: 24px; font-weight: 700; color: var(--color-primary); }
.subtitle { font-size: 13px; color: var(--color-text-sub); margin-top: 2px; }

/* ステップインジケーター */
.step-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 24px;
  justify-content: center;
}

.step-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-border);
  transition: all 0.3s ease;
  flex-shrink: 0;
}

.step-dot.done {
  background: var(--color-primary);
}

.step-dot.current {
  background: var(--color-primary);
  width: 28px;
  border-radius: 5px;
}

.step-dot.upcoming {
  background: var(--color-border);
}

.step-label {
  font-size: 12px;
  color: var(--color-text-sub);
  margin-left: 8px;
  white-space: nowrap;
}

/* ウィザードステップ */
.step-question {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 16px;
  line-height: 1.5;
}

.step-sub {
  font-size: 13px;
  color: var(--color-text-sub);
  margin-bottom: 16px;
}

/* 選択肢ボタン */
.choice-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.choice-btn {
  display: block;
  width: 100%;
  padding: 16px;
  background: var(--color-card);
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 16px;
  font-family: inherit;
  color: var(--color-text);
  text-align: left;
  cursor: pointer;
  transition: all 0.15s;
  min-height: 52px;
}

.choice-btn:active {
  transform: scale(0.98);
  border-color: var(--color-primary);
  background: #eef2ff;
}

.choice-btn .choice-main {
  font-weight: 600;
}

.choice-btn .choice-detail {
  font-size: 13px;
  color: var(--color-text-sub);
  margin-top: 2px;
}

/* 数値入力ステップ */
.input-step {
  margin-bottom: 16px;
}

.input-step .input-with-unit {
  position: relative;
  margin-bottom: 12px;
}

.input-step input[type="number"] {
  width: 100%;
  padding: 16px 50px 16px 16px;
  font-size: 24px;
  font-weight: 700;
  font-family: inherit;
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-card);
  color: var(--color-text);
  appearance: none;
  -webkit-appearance: none;
  text-align: right;
  min-height: 60px;
}

.input-step input[type="number"]:focus {
  outline: none;
  border-color: var(--color-primary);
}

.input-step .unit {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text-sub);
  pointer-events: none;
}

.btn-submit {
  display: block;
  width: 100%;
  padding: 16px;
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-size: 16px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  min-height: 52px;
  transition: background 0.15s;
}

.btn-submit:active {
  background: var(--color-primary-dark);
}

.btn-submit:disabled {
  background: var(--color-border);
  color: var(--color-text-sub);
  cursor: not-allowed;
}

/* 選択済みサマリー */
.summary-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}

.summary-tag {
  display: inline-block;
  padding: 4px 10px;
  background: #eef2ff;
  color: var(--color-primary);
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}

/* 結果表示 */
.result-main {
  text-align: center;
  padding: 28px 16px;
  border-radius: var(--radius);
  margin-bottom: 16px;
}

.result-main.profit-positive { background: var(--color-profit-bg); border: 2px solid #bbf7d0; }
.result-main.profit-negative { background: var(--color-loss-bg); border: 2px solid #fecaca; }
.result-main.profit-zero { background: var(--color-input-bg); border: 2px solid var(--color-border); }

.result-label { font-size: 14px; font-weight: 600; color: var(--color-text-sub); margin-bottom: 4px; }
.result-value { font-size: 36px; font-weight: 700; line-height: 1.2; }
.profit-positive .result-value { color: var(--color-profit); }
.profit-negative .result-value { color: var(--color-loss); }
.profit-zero .result-value { color: var(--color-text-sub); }
.result-sub { font-size: 14px; color: var(--color-text-sub); margin-top: 4px; }

/* 内訳 */
.result-breakdown {
  background: var(--color-card);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  padding: 16px;
  margin-bottom: 16px;
}

.result-breakdown h3 { font-size: 14px; font-weight: 600; color: var(--color-text-sub); margin-bottom: 12px; }

.breakdown-table { width: 100%; border-collapse: collapse; }
.breakdown-table td { padding: 8px 0; font-size: 14px; border-bottom: 1px solid var(--color-border); }
.breakdown-table tr:last-child td { border-bottom: none; }
.breakdown-total td { font-weight: 700; font-size: 15px; border-top: 2px solid var(--color-text); border-bottom: none !important; padding-top: 12px; }
.text-right { text-align: right; font-variant-numeric: tabular-nums; }

/* 横断比較カード */
.compare-card {
  background: var(--color-card);
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 12px;
}
.compare-card.best { border-color: #16a34a; background: var(--color-profit-bg); }
.compare-card-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.compare-app-name { font-size: 16px; font-weight: 700; }
.compare-rank { font-size: 14px; font-weight: 700; color: var(--color-text-sub); }
.compare-card.best .compare-rank { color: var(--color-profit); }
.compare-profit { font-size: 24px; font-weight: 700; margin-bottom: 4px; }
.compare-card.best .compare-profit { color: var(--color-profit); }
.compare-card.loss .compare-profit { color: var(--color-loss); }
.compare-details { font-size: 13px; color: var(--color-text-sub); line-height: 1.8; }
.compare-details span { display: inline-block; margin-right: 12px; }
.compare-shipping-name { font-size: 12px; color: var(--color-text-sub); margin-bottom: 4px; }
.compare-no-shipping { color: var(--color-text-sub); font-size: 13px; font-style: italic; }

/* 専用資材バッジ（配送選択時） */
.material-badge {
  display: inline-block;
  padding: 2px 8px;
  background: #fef3c7;
  color: #92400e;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 700;
  margin-left: 6px;
  vertical-align: middle;
}

/* ========================================
   ヘルプカード（展開式・初心者ガイド）
   ======================================== */
.help-card {
  border-radius: var(--radius);
  margin-bottom: 16px;
  overflow: hidden;
  border: 2px solid #93c5fd;
  background: #eff6ff;
}

.help-card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  cursor: pointer;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.help-card-header:active {
  background: #dbeafe;
}

.help-card-icon {
  font-size: 24px;
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  background: #3b82f6;
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.help-card-text {
  flex: 1;
}

.help-card-title {
  font-size: 14px;
  font-weight: 700;
  color: #1e40af;
  line-height: 1.4;
}

.help-card-hint {
  font-size: 12px;
  color: #3b82f6;
  margin-top: 2px;
}

.help-card-arrow {
  font-size: 18px;
  color: #3b82f6;
  transition: transform 0.2s;
  flex-shrink: 0;
}

.help-card.open .help-card-arrow {
  transform: rotate(180deg);
}

.help-card-body {
  display: none;
  padding: 0 16px 16px;
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.8;
}

.help-card.open .help-card-body {
  display: block;
}

.help-card-body p {
  margin-bottom: 8px;
}

/* 警告ヘルプカード */
.help-card.warning {
  border-color: #fbbf24;
  background: #fffbeb;
}

.help-card.warning .help-card-icon {
  background: #f59e0b;
}

.help-card.warning .help-card-title {
  color: #92400e;
}

.help-card.warning .help-card-hint {
  color: #b45309;
}

.help-card.warning .help-card-arrow {
  color: #b45309;
}

.help-card.warning .help-card-header:active {
  background: #fef3c7;
}

/* 購入場所リスト */
.shop-list {
  list-style: none;
  padding: 0;
  margin: 8px 0;
}

.shop-list li {
  padding: 8px 12px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  margin-bottom: 6px;
  font-size: 14px;
  font-weight: 600;
}

/* やることリスト（結果画面・展開式） */
.todo-card {
  background: #fffbeb;
  border: 2px solid #fbbf24;
  border-radius: var(--radius);
  margin-bottom: 16px;
  overflow: hidden;
}

.todo-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  cursor: pointer;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.todo-header:active {
  background: #fef3c7;
}

.todo-badge {
  width: 28px;
  height: 28px;
  background: #f59e0b;
  color: #fff;
  border-radius: 50%;
  font-size: 14px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.todo-header-text {
  flex: 1;
}

.todo-header-title {
  font-size: 15px;
  font-weight: 700;
  color: #92400e;
}

.todo-header-hint {
  font-size: 12px;
  color: #b45309;
  margin-top: 1px;
}

.todo-header-arrow {
  font-size: 18px;
  color: #b45309;
  transition: transform 0.2s;
}

.todo-card.open .todo-header-arrow {
  transform: rotate(180deg);
}

.todo-body {
  display: none;
  padding: 0 16px 16px;
}

.todo-card.open .todo-body {
  display: block;
}

.todo-list {
  list-style: none;
  padding: 0;
  counter-reset: todo;
}

.todo-list li {
  counter-increment: todo;
  padding: 10px 12px 10px 40px;
  position: relative;
  font-size: 14px;
  line-height: 1.6;
  border-bottom: 1px solid #fde68a;
}

.todo-list li:last-child {
  border-bottom: none;
}

.todo-list li::before {
  content: counter(todo);
  position: absolute;
  left: 8px;
  top: 10px;
  width: 24px;
  height: 24px;
  background: #f59e0b;
  color: #fff;
  border-radius: 50%;
  font-size: 13px;
  font-weight: 700;
  text-align: center;
  line-height: 24px;
}

.todo-detail {
  font-size: 12px;
  color: var(--color-text-sub);
  margin-top: 2px;
}

/* 内訳テーブルの説明行 */
.breakdown-help {
  display: none;
  padding: 0 16px 12px;
}

.breakdown-help.open {
  display: block;
}

.breakdown-desc-row {
  font-size: 12px;
  color: var(--color-text-sub);
  padding: 4px 0 4px 12px;
  border-left: 3px solid var(--color-border);
  margin-bottom: 6px;
  line-height: 1.5;
}

.breakdown-desc-row strong {
  color: var(--color-text);
}

/* ナビボタン */
.nav-buttons {
  display: flex;
  gap: 10px;
  margin-top: 8px;
  margin-bottom: 16px;
}

.btn {
  flex: 1;
  padding: 12px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  min-height: 44px;
  transition: all 0.15s;
}

.btn-back {
  background: var(--color-card);
  color: var(--color-text);
  border: 2px solid var(--color-border);
}

.btn-restart {
  background: var(--color-input-bg);
  color: var(--color-primary);
  border: 2px solid transparent;
}

.btn:active { transform: scale(0.97); }

/* 常時リセットリンク */
.reset-link {
  text-align: center;
  margin-bottom: 16px;
}

.reset-link button {
  background: none;
  border: none;
  color: var(--color-primary);
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  padding: 8px 16px;
  text-decoration: underline;
  min-height: 44px;
}

/* 免責事項 */
.disclaimer {
  background: var(--color-input-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 16px;
  margin-bottom: 12px;
  text-align: left;
}
.disclaimer-title { font-size: 13px; font-weight: 700; color: var(--color-text); margin-bottom: 8px; }
.disclaimer ul { list-style: none; padding: 0; }
.disclaimer li { font-size: 12px; color: var(--color-text-sub); line-height: 1.7; padding-left: 1em; text-indent: -1em; margin-bottom: 4px; }
.disclaimer li::before { content: "\30FB"; }
.footer-meta { font-size: 11px; color: var(--color-text-sub); opacity: 0.7; }
.footer { margin-top: 32px; text-align: center; font-size: 12px; color: var(--color-text-sub); line-height: 1.8; }

/* タブレット以上 */
@media (min-width: 768px) {
  .container { max-width: 600px; padding: 24px; }
  .header h1 { font-size: 28px; }
}

/* スピナー非表示 */
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button { -webkit-appearance: none; margin: 0; }
input[type="number"] { -moz-appearance: textfield; }