:root {
  --primary: #4a90d9;
  --primary-dark: #2d6fb0;
  --bg: #f5f7fa;
  --card-bg: #ffffff;
  --text: #2c3e50;
  --muted: #7f8c8d;
  --border: #dde3ea;
  --radius: 12px;
  --shadow: 0 2px 8px rgba(0,0,0,0.08);

  --score-none: #95a5a6;
  --score-0: #27ae60;
  --score-1: #2ecc71;
  --score-2: #f1c40f;
  --score-3: #e67e22;
  --score-4: #e74c3c;
  --score-5: #8e44ad;
  --score-selected-text: #fff;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

/* ---- Login ---- */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.login-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 36px 28px;
  width: 100%;
  max-width: 360px;
}

.login-card h1 {
  font-size: 1.5rem;
  margin-bottom: 24px;
  text-align: center;
}

.login-card label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 16px;
}

.login-card input {
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
  color: var(--text);
  outline: none;
  transition: border-color 0.2s;
}

.login-card input:focus { border-color: var(--primary); }

.login-card button {
  width: 100%;
  padding: 14px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  margin-top: 8px;
  transition: background 0.2s;
}

.login-card button:hover { background: var(--primary-dark); }

.error-msg {
  background: #fdecea;
  color: #c0392b;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 0.9rem;
  margin-bottom: 16px;
}

/* ---- Header ---- */
header {
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 10;
}

header h1 { font-size: 1.1rem; }

.header-nav {
  display: flex;
  gap: 16px;
}

.header-nav a {
  font-size: 0.85rem;
  color: var(--muted);
  text-decoration: none;
}

.header-nav a:hover { color: var(--text); }

.install-nav-btn {
  font-size: 0.85rem;
  color: var(--primary);
  background: none;
  border: 1px solid var(--primary);
  border-radius: 100px;
  padding: 3px 12px;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.2s, color 0.2s;
}
.install-nav-btn:hover { background: var(--primary); color: white; }

/* ---- Main ---- */
main {
  padding: 16px;
  max-width: 640px;
  margin: 0 auto;
}

.date-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}

.nav-btn {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card-bg);
  color: var(--text);
  font-size: 0.9rem;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s;
}

.nav-btn:hover { background: var(--bg); }

.date-row input[type="date"] {
  flex: 1;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
  color: var(--text);
  background: var(--card-bg);
  width: 100%;
  max-width: 200px;
}

/* ---- Symptom sections ---- */
.symptom-section {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
  margin-bottom: 12px;
}

.symptom-section h2 {
  font-size: 1rem;
  margin-bottom: 12px;
  color: var(--text);
}

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

.tp-block { }

.tp-label {
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 6px;
  font-weight: 600;
}

.score-buttons {
  display: flex;
  flex-wrap: nowrap;
  justify-content: space-between;
  gap: 4px;
}

.score-btn {
  padding: 8px 0;
  width: calc((100% - 24px) / 7);
  min-width: auto;
  border: 2px solid var(--border);
  border-radius: 6px;
  background: var(--card-bg);
  color: var(--text);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
  text-align: center;
}

.score-btn:active { transform: scale(0.93); }

.score-btn[data-score="none"].selected { background: var(--score-none); border-color: var(--score-none); color: var(--score-selected-text); }
.score-btn[data-score="0"].selected   { background: var(--score-0);    border-color: var(--score-0);    color: var(--score-selected-text); }
.score-btn[data-score="1"].selected   { background: var(--score-1);    border-color: var(--score-1);    color: var(--score-selected-text); }
.score-btn[data-score="2"].selected   { background: var(--score-2);    border-color: var(--score-2);    color: var(--score-selected-text); }
.score-btn[data-score="3"].selected   { background: var(--score-3);    border-color: var(--score-3);    color: var(--score-selected-text); }
.score-btn[data-score="4"].selected   { background: var(--score-4);    border-color: var(--score-4);    color: var(--score-selected-text); }
.score-btn[data-score="5"].selected   { background: var(--score-5);    border-color: var(--score-5);    color: var(--score-selected-text); }

/* ---- 逆向きスコア（睡眠・メンタルなど：数値が大きいほど良い）の配色 ---- */
.score-buttons[data-reverse="1"] .score-btn[data-score="0"].selected { background: var(--score-5); border-color: var(--score-5); }
.score-buttons[data-reverse="1"] .score-btn[data-score="1"].selected { background: var(--score-4); border-color: var(--score-4); }
.score-buttons[data-reverse="1"] .score-btn[data-score="2"].selected { background: var(--score-3); border-color: var(--score-3); }
.score-buttons[data-reverse="1"] .score-btn[data-score="3"].selected { background: var(--score-2); border-color: var(--score-2); }
.score-buttons[data-reverse="1"] .score-btn[data-score="4"].selected { background: var(--score-1); border-color: var(--score-1); }
.score-buttons[data-reverse="1"] .score-btn[data-score="5"].selected { background: var(--score-0); border-color: var(--score-0); }

/* ---- Save button ---- */
.save-row {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 8px 0 24px;
}



.clear-btn {
  width: 100%;
  padding: 12px;
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s;
}

.clear-btn:hover { color: #c0392b; border-color: #c0392b; }

/* ---- Notes ---- */
.notes-section {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
  margin-bottom: 12px;
}

.notes-section h2 {
  font-size: 1rem;
  margin-bottom: 10px;
}

#note-input {
  width: 100%;
  min-height: 80px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--text);
  resize: vertical;
  outline: none;
  transition: border-color 0.2s;
}

#note-input:focus { border-color: var(--primary); }

/* ---- Settings ---- */
.settings-section {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
  margin-bottom: 16px;
}

.settings-section h2 { font-size: 1rem; margin-bottom: 8px; }

.settings-hint { font-size: 0.82rem; color: var(--muted); margin-bottom: 12px; }

#symptom-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.symptom-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  cursor: grab;
}

.symptom-item.dragging { opacity: 0.4; }

.drag-handle { color: var(--muted); font-size: 1rem; cursor: grab; }

.symptom-form {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  flex: 1;
}

.symptom-label-input {
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.9rem;
  width: 130px;
}

.tp-toggle, .active-toggle {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.82rem;
  color: var(--muted);
  white-space: nowrap;
}

.btn-small {
  padding: 6px 12px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 0.82rem;
  cursor: pointer;
}

.btn-small:hover { background: var(--primary-dark); }

.add-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.add-input {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.95rem;
  color: var(--text);
}

.btn-add {
  padding: 12px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
}

.btn-add:hover { background: var(--primary-dark); }

/* ---- Register Symptom Selection ---- */
.symptom-selection {
  margin-bottom: 20px;
  background: var(--bg);
  padding: 16px;
  border-radius: 8px;
  border: 1px solid var(--border);
}

.symptom-selection-title {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text);
  line-height: 1.4;
}

.symptom-selection-title small {
  font-size: 0.8rem;
  color: var(--muted);
  font-weight: normal;
}

.symptom-checkboxes {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.symptom-checkbox-label {
  display: inline-flex !important;
  align-items: center;
  gap: 6px;
  margin-bottom: 0 !important;
  padding: 8px 12px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 0.9rem;
  color: var(--text);
  cursor: pointer;
  transition: all 0.2s;
  user-select: none;
}

.symptom-checkbox-label:has(input:checked) {
  background: #e6f7ff;
  border-color: #91d5ff;
  color: #0050b3;
  font-weight: 600;
}

.symptom-checkbox-label input {
  margin: 0;
  width: auto;
  cursor: pointer;
}

/* ---- Save msg (Toast) ---- */
.save-msg {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: #eafaf1;
  color: #1e8449;
  padding: 10px 20px;
  border-radius: 30px;
  font-weight: 600;
  font-size: 0.95rem;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  z-index: 1000;
  transition: opacity 0.3s, background-color 0.3s;
}

.save-msg[hidden] {
  display: none !important;
}

/* ---- WBGT Section (ベータ版) ---- */
.wbgt-section {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  margin-bottom: 12px;
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.wbgt-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--primary), #a29bfe);
}

.wbgt-section h2 {
  font-size: 1.1rem;
  margin-bottom: 8px;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
}

.beta-badge {
  background: linear-gradient(135deg, #6c5ce7, #a29bfe);
  color: white;
  font-size: 0.68rem;
  padding: 2px 6px;
  border-radius: 4px;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.wbgt-desc {
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.5;
  margin-bottom: 16px;
}

.wbgt-fetch-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}

.wbgt-fetch-btn {
  padding: 8px 16px;
  background: linear-gradient(135deg, #0984e3, #74b9ff);
  color: white;
  border: none;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 3px 8px rgba(9, 132, 227, 0.2);
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
}

.wbgt-fetch-btn:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 5px 12px rgba(9, 132, 227, 0.3);
}

.wbgt-fetch-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.wbgt-status-msg {
  font-size: 0.8rem;
  font-weight: 500;
  transition: opacity 0.3s;
}

.status-fetching { color: var(--muted); }
.status-success { color: #1e8449; font-weight: bold; }
.status-error { color: #c0392b; font-weight: bold; }

.wbgt-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-bottom: 16px;
}

@media (max-width: 480px) {
  .wbgt-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.wbgt-input-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.wbgt-input-group label {
  font-size: 0.75rem;
  color: var(--muted);
  font-weight: 600;
}

.wbgt-input {
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.9rem;
  color: var(--text);
  background: var(--bg);
  outline: none;
  transition: all 0.2s ease;
  width: 100%;
}

.wbgt-input:focus {
  border-color: var(--primary);
  background: var(--card-bg);
  box-shadow: 0 0 0 3px rgba(74, 144, 217, 0.15);
}

.wbgt-result-box {
  background: #f8fafd;
  border: 1px solid #eef3f9;
  border-radius: var(--radius);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 12px;
}

.wbgt-result-label {
  font-size: 0.85rem;
  color: var(--text);
  font-weight: 600;
}

.wbgt-result-value {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text);
  font-family: inherit;
  display: flex;
  align-items: baseline;
  gap: 2px;
}

.wbgt-unit {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--muted);
}

.wbgt-level-text {
  font-size: 0.82rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 12px;
  text-align: center;
}

.level-safe { background-color: #e3f2fd; color: #1565c0; }
.level-caution { background-color: #fff9c4; color: #f57f17; }
.level-warning { background-color: #ffe0b2; color: #e65100; }
.level-severe { background-color: #ffcdd2; color: #c62828; }
.level-danger { background-color: #f3e5f5; color: #6a1b9a; }

.wbgt-status-badge {
  font-size: 0.68rem;
  padding: 2px 6px;
  border-radius: 4px;
  font-weight: bold;
  margin-left: 6px;
  display: inline-block;
  vertical-align: middle;
}

.status-forecast-badge {
  background-color: #fff9db;
  border: 1px solid #f59f00;
  color: #f59f00;
}

.status-actual-badge {
  background-color: #ebfbee;
  border: 1px solid #40c057;
  color: #40c057;
}

.wbgt-refresh-btn {
  padding: 8px 14px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 20px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.wbgt-refresh-btn:hover:not(:disabled) {
  background: var(--bg);
  border-color: var(--muted);
  color: var(--text);
  transform: translateY(-1px);
}

.wbgt-refresh-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* 印刷レポート画面用一括取得ボタンのスタイリング */
.btn-batch-action {
  box-shadow: 0 2px 4px rgba(52, 152, 219, 0.2);
  transition: all 0.2s ease !important;
}

.btn-batch-action:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(52, 152, 219, 0.3) !important;
  background: linear-gradient(135deg, #2980b9, #2471a3) !important;
}

.btn-batch-action:disabled, .btn-batch-action-alt:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

.btn-batch-action-alt {
  transition: all 0.2s ease !important;
}

.btn-batch-action-alt:hover:not(:disabled) {
  background-color: #fdf2f2 !important;
  border-color: #e74c3c !important;
  transform: translateY(-1px);
}

/* ---- Medication (服薬記録) ---- */
.medication-section {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
  margin-bottom: 12px;
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.medication-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, #2ecc71, #27ae60);
}

.medication-section h2 {
  font-size: 1rem;
  margin-bottom: 12px;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 6px;
}

.medication-grid {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.med-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 0;
  border-bottom: 1px dashed var(--border);
}

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

.med-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
}

.med-toggle-btn {
  padding: 8px 16px;
  border: 2px solid var(--border);
  border-radius: 20px;
  background: var(--card-bg);
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.med-toggle-btn:hover {
  background: var(--bg);
  color: var(--text);
}

.med-toggle-btn.taken {
  background: linear-gradient(135deg, #2ecc71, #27ae60);
  border-color: #27ae60;
  color: white;
  box-shadow: 0 2px 6px rgba(46, 204, 113, 0.2);
}

.med-toggle-btn:active {
  transform: scale(0.95);
}

/* ---- Settings Card Extensions ---- */
.settings-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.settings-select {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.95rem;
  color: var(--text);
  background: var(--card-bg);
  width: 100%;
  max-width: 300px;
  outline: none;
  transition: border-color 0.2s;
}

.settings-select:focus {
  border-color: var(--primary);
}

.settings-checkbox-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 16px;
}

.settings-checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  color: var(--text);
  cursor: pointer;
  user-select: none;
}

.settings-checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
}