:root {
  --bg: #f4f6fb;
  --panel: #ffffff;
  --border: #e2e6ef;
  --text: #26303a;
  --muted: #8a94a6;
  --primary: #4f7cff;
  --primary-dark: #3a63d8;
  --danger: #e2574c;
  --done: #9aa5b5;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", "Hiragino Kaku Gothic ProN", "Meiryo", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.app-header {
  padding: 20px 24px;
  background: linear-gradient(135deg, #4f7cff, #6a5cff);
  color: #fff;
}

.app-header h1 {
  margin: 0;
  font-size: 1.5rem;
}

/* ダッシュボード */
.dashboard {
  display: flex;
  gap: 16px;
  padding: 20px 24px;
  flex-wrap: wrap;
}

.stat-card {
  flex: 1;
  min-width: 140px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px;
  text-align: center;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.stat-num {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--muted);
}

/* 最新の振り返り（ダッシュボード） */
.latest-review-section {
  padding: 0 24px 20px;
}

.latest-review {
  background: linear-gradient(135deg, #fff7ed, #fffbeb);
  border: 1px solid #f6e2c0;
  border-left: 5px solid #e6a23c;
  border-radius: 12px;
  padding: 16px 18px;
}

.latest-review-head {
  font-size: 0.85rem;
  font-weight: 700;
  color: #b9791f;
  margin-bottom: 6px;
}

.latest-review-week {
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 4px;
}

.latest-review-body {
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--text);
}

/* 週次振り返り */
.review-section {
  padding: 0 24px 20px;
}

.form-review .review-week {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--muted);
  flex-wrap: wrap;
}

.form-review input[type="date"] {
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: inherit;
  font-size: 0.95rem;
}

.review-week-label {
  color: var(--text);
  font-weight: 600;
}

.review-week-badge {
  font-size: 0.85rem;
  font-weight: 600;
  color: #b9791f;
  margin-bottom: 2px;
}

.review-comment {
  white-space: pre-wrap;
  word-break: break-word;
}

/* M365 メール */
.mail-section {
  padding: 0 24px 20px;
}

.mail-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.mail-unread-dot {
  flex-shrink: 0;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  margin-top: 7px;
  background: var(--primary);
}

.mail-unread-dot.read {
  background: transparent;
  border: 1px solid var(--border);
}

.mail-main {
  flex: 1;
  min-width: 0;
}

.mail-top {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.mail-from {
  font-size: 0.82rem;
  color: var(--muted);
  word-break: break-all;
}

.mail-date {
  font-size: 0.78rem;
  color: var(--muted);
  flex-shrink: 0;
  white-space: nowrap;
}

.mail-subject {
  font-weight: 600;
  margin: 2px 0;
  word-break: break-word;
}

.mail-item.unread .mail-subject {
  color: var(--primary-dark);
}

.mail-preview {
  font-size: 0.85rem;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.mail-link {
  font-size: 0.78rem;
  color: var(--primary);
  text-decoration: none;
}

.mail-link:hover {
  text-decoration: underline;
}

.mail-badge-unread {
  display: inline-block;
  font-size: 0.68rem;
  padding: 0 7px;
  border-radius: 999px;
  background: #e7f0ff;
  color: var(--primary-dark);
  margin-left: 6px;
}

/* スケジュール */
.schedule-section {
  padding: 0 24px 20px;
}

/* スケジュールの週・日グループ */
.sched-groups {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.week-group {
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}

.week-head {
  background: #eef2fb;
  color: var(--primary-dark);
  font-weight: 700;
  font-size: 0.9rem;
  padding: 8px 14px;
}

.day-group {
  padding: 8px 14px;
  border-top: 1px solid var(--border);
}

.day-group:first-of-type {
  border-top: none;
}

.day-head {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text);
  margin: 4px 0 8px;
}

.day-head.today {
  color: var(--primary);
}

.day-head .today-tag {
  font-size: 0.7rem;
  background: var(--primary);
  color: #fff;
  border-radius: 999px;
  padding: 1px 8px;
  margin-left: 6px;
}

.panel-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.panel-head h2 {
  margin: 0;
  font-size: 1.15rem;
}

.sync-note {
  font-size: 0.78rem;
  color: var(--muted);
}

.form-schedule .form-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.form-schedule .form-row label {
  flex: 1;
  min-width: 200px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.8rem;
  color: var(--muted);
}

.form-schedule input[type="datetime-local"] {
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: inherit;
  font-size: 0.95rem;
}

.sched-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.sched-when {
  flex-shrink: 0;
  width: 150px;
  font-size: 0.85rem;
  color: var(--text);
  font-weight: 600;
}

.sched-main {
  flex: 1;
}

.sched-loc {
  font-size: 0.82rem;
  color: var(--muted);
  margin-top: 2px;
}

.sync-badge {
  display: inline-block;
  font-size: 0.7rem;
  padding: 1px 8px;
  border-radius: 999px;
  margin-left: 6px;
  vertical-align: middle;
}

.sync-badge.synced {
  background: #e6f7ec;
  color: #2e9e5b;
}

.sync-badge.create {
  background: #e7f0ff;
  color: #3a63d8;
}

.sync-badge.update {
  background: #fff3e0;
  color: #d67e00;
}

/* カラム */
.columns {
  display: flex;
  gap: 20px;
  padding: 0 24px 40px;
  flex-wrap: wrap;
  align-items: flex-start;
}

.panel {
  flex: 1;
  min-width: 320px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.panel h2 {
  margin: 0 0 16px;
  font-size: 1.15rem;
}

/* フォーム */
.form {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

.form input,
.form textarea {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.95rem;
  font-family: inherit;
  resize: vertical;
}

.form input:focus,
.form textarea:focus {
  outline: none;
  border-color: var(--primary);
}

.form button {
  padding: 10px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background 0.15s;
}

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

/* 一覧 */
.list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.list li {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  background: #fbfcfe;
}

.item-title {
  font-weight: 600;
  margin-bottom: 2px;
}

.item-body {
  white-space: pre-wrap;
  word-break: break-word;
}

.item-meta {
  font-size: 0.78rem;
  color: var(--muted);
  margin-top: 6px;
}

.empty {
  color: var(--muted);
  font-size: 0.9rem;
  text-align: center;
  padding: 12px;
}

/* タスク行 */
.task-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.task-row input[type="checkbox"] {
  margin-top: 4px;
  width: 18px;
  height: 18px;
  cursor: pointer;
  flex-shrink: 0;
}

.task-main {
  flex: 1;
}

.task-text.done {
  text-decoration: line-through;
  color: var(--done);
}

/* 操作ボタン */
.actions {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}

.btn-link {
  background: none;
  border: none;
  color: var(--danger);
  cursor: pointer;
  font-size: 0.8rem;
  padding: 0;
}

.btn-link:hover {
  text-decoration: underline;
}

.badge {
  display: inline-block;
  font-size: 0.72rem;
  padding: 1px 8px;
  border-radius: 999px;
  margin-left: 6px;
}

.badge.open {
  background: #fff3e0;
  color: #d67e00;
}

.badge.done {
  background: #e6f7ec;
  color: #2e9e5b;
}