/* ===== タブメニュー ===== */
.tab-btn {
  padding: 0.55rem 1.1rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 600;
  color: #cbd5e1;
  background: rgba(30, 41, 59, 0.6);
  border: 1px solid rgba(51, 65, 85, 0.8);
  transition: all 0.15s ease;
  cursor: pointer;
}
.tab-btn:hover {
  color: #ffffff;
  border-color: #10b981;
}
.tab-btn.active {
  background: #10b981;
  color: #062f24;
  border-color: #10b981;
}

/* ===== カード ===== */
.card {
  background: rgba(15, 23, 42, 0.75);
  border: 1px solid rgba(51, 65, 85, 0.7);
  border-radius: 1rem;
  padding: 1.5rem;
  box-shadow: 0 10px 30px -12px rgba(0, 0, 0, 0.5);
}
.card-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: #34d399;
  margin-bottom: 1.25rem;
  letter-spacing: 0.01em;
}

/* ===== 入力フィールド ===== */
.field {
  margin-bottom: 1.4rem;
}
.field label {
  display: block;
  font-size: 0.82rem;
  color: #94a3b8;
  margin-bottom: 0.45rem;
}
.field-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.field-row input[type="range"] {
  flex: 1 1 auto;
  height: 6px;
  border-radius: 9999px;
  background: #1e293b;
  accent-color: #10b981;
  cursor: pointer;
}
.field-row .input-num {
  width: 8.5rem;
  flex: 0 0 auto;
  background: #0f172a;
  border: 1px solid #334155;
  color: #f1f5f9;
  border-radius: 0.5rem;
  padding: 0.4rem 0.6rem;
  font-size: 0.9rem;
  text-align: right;
}
.field-row .input-num:focus,
.field-row input[type="range"]:focus {
  outline: 2px solid #10b981;
  outline-offset: 2px;
}

/* ===== 結果ボックス ===== */
.result-box {
  margin-top: 1.5rem;
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.12), rgba(15, 23, 42, 0.4));
  border: 1px solid rgba(16, 185, 129, 0.35);
  border-radius: 0.85rem;
  padding: 1.1rem 1.25rem;
}
.result-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0.4rem 0;
  border-bottom: 1px dashed rgba(148, 163, 184, 0.2);
}
.result-row:last-child {
  border-bottom: none;
}
.result-row span {
  color: #cbd5e1;
  font-size: 0.85rem;
}
.result-row strong {
  color: #34d399;
  font-size: 1.15rem;
  font-weight: 700;
}

/* ===== グラフ ===== */
.chart-wrap {
  position: relative;
  width: 100%;
  height: 320px;
}

/* ===== ダウンロードボタン ===== */
.download-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.25rem;
}
.btn-download {
  flex: 1 1 auto;
  padding: 0.6rem 1rem;
  border-radius: 0.6rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: #062f24;
  background: #34d399;
  border: none;
  cursor: pointer;
  transition: filter 0.15s ease;
}
.btn-download:hover {
  filter: brightness(1.08);
}
.btn-download:active {
  filter: brightness(0.95);
}

/* ===== 取り崩しモード切替 ===== */
.mode-btn {
  flex: 1 1 0;
  padding: 0.55rem 0.75rem;
  border-radius: 0.6rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: #cbd5e1;
  background: rgba(30, 41, 59, 0.6);
  border: 1px solid rgba(51, 65, 85, 0.8);
  cursor: pointer;
}
.mode-btn.active {
  background: #10b981;
  color: #062f24;
  border-color: #10b981;
}

/* ===== 印刷/PDFキャプチャ用調整 ===== */
.report-capture {
  background: #0f172a;
  padding: 1.5rem;
  border-radius: 1rem;
}