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

:root {
  --bg: #f0f2f5;
  --card: #ffffff;
  --primary: #f97316;
  --primary-hover: #ea6c0a;
  --text: #1e293b;
  --muted: #64748b;
  --border: #e2e8f0;
  --danger: #ef4444;
  --success: #22c55e;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(0,0,0,.08), 0 4px 16px rgba(0,0,0,.06);
}

body {
  font-family: 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

/* =========================
   ログイン
========================= */

#login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 20px;
}

.login-card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 48px 40px;
  width: 100%;
  max-width: 400px;
}

.login-logo {
  font-size: 26px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 4px;
}

.login-subtitle {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 32px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
}

.form-group input {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: 15px;
  transition: border-color .2s;
}

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

/* =========================
   ボタン
========================= */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border: none;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background .2s, transform .1s;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  width: 100%;
}

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

.btn-primary:disabled {
  opacity: .6;
  cursor: not-allowed;
}

.btn-sm {
  padding: 7px 14px;
  font-size: 13px;
}

.btn-outline {
  background: #fff;
  border: 1.5px solid var(--border);
  color: var(--text);
}

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

.error-msg {
  background: #fef2f2;
  color: var(--danger);
  border: 1px solid #fecaca;
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 13px;
  margin-bottom: 16px;
  display: none;
}

/* =========================
   ダッシュボード
========================= */

#dashboard-screen {
  display: none;
}

header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-brand {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-badge {
  font-size: 13px;
  color: var(--muted);
}

main {
  padding: 24px;
  max-width: 1200px;
  margin: 0 auto;
}

/* =========================
   サマリー
========================= */

.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.summary-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}

.summary-card .label {
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .5px;
}

.summary-card .value {
  font-size: 28px;
  font-weight: 700;
  margin-top: 4px;
  color: var(--primary);
}

.summary-card .unit {
  font-size: 14px;
  font-weight: 400;
  color: var(--muted);
  margin-left: 4px;
}

/* =========================
   グラフ
========================= */

.chart-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  margin-bottom: 24px;
}

.chart-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
}

.chart-wrap {
  position: relative;
  height: 280px;
}

/* =========================
   フィルター
========================= */

.filter-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 16px 20px;
  box-shadow: var(--shadow);
  margin-bottom: 24px;
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: flex-end;
}

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

.filter-group label {
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
}

.filter-group input,
.filter-group select {
  padding: 8px 12px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  min-width: 140px;
}

.filter-group input:focus,
.filter-group select:focus {
  outline: none;
  border-color: var(--primary);
}

.filter-btns {
  display: flex;
  gap: 8px;
}

.btn-primary-sm {
  background: var(--primary);
  color: #fff;
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  cursor: pointer;
}

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

/* =========================
   テーブル
========================= */

.table-card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.table-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.table-header h2 {
  font-size: 15px;
  font-weight: 600;
}

.table-actions {
  display: flex;
  gap: 8px;
}

.table-wrap {
  overflow-x: auto;
  width: 100%;
  -webkit-overflow-scrolling: touch;
  display: block;
}

table {
  border-collapse: collapse;
  font-size: 13px;
  min-width: 1000px;
  width: max-content;
}

th {
  position: sticky;
  top: 0;
  z-index: 20;

  padding: 10px 12px;
  text-align: left;

  font-size: 11px;
  font-weight: 600;
  color: var(--muted);

  text-transform: uppercase;
  letter-spacing: .5px;

  border-bottom: 2px solid var(--border);

  white-space: nowrap;
  background: var(--card);
}

td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

tbody tr:nth-child(even) td {
  background: #e8f0ff;
}

tbody tr {
  cursor: pointer;
  transition: background .15s ease;
}

tbody tr:hover td {
  background: #eef2f7;
}

tbody tr:last-child td {
  border-bottom: none;
}

/* =========================
   ソート
========================= */

th.sortable {
  cursor: pointer;
  user-select: none;
}

th.sortable:hover {
  background: #f8fafc;
  color: var(--primary);
}

th.sort-asc::after {
  content: ' ▲';
  color: var(--primary);
}

th.sort-desc::after {
  content: ' ▼';
  color: var(--primary);
}

/* =========================
   ページネーション
========================= */

.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--muted);
}

.pagination-btns {
  display: flex;
  gap: 6px;
}

/* =========================
   ローディング
========================= */

.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
  gap: 10px;
  color: var(--muted);
  font-size: 14px;
}

#table-content:not(.loading) {
  display: block;
}

.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin .7s linear infinite;
}

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

/* =========================
   設定ページ
========================= */

#settings-screen header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
}

.settings-card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  max-width: 600px;
  margin: 24px auto;
  padding: 24px;
}

.settings-header h2 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.settings-desc {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 24px;
}

.columns-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 24px;
}

.column-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: 8px;
  cursor: grab;
  transition: background .15s, border-color .15s;
}

.column-item.active {
  background: #fff7ed;
  border-color: var(--primary);
}

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

.drag-handle {
  font-size: 18px;
  color: var(--muted);
  cursor: grab;
  user-select: none;
}

.column-label {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  flex: 1;
}

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

.column-name {
  font-size: 14px;
  font-weight: 600;
}

.column-key {
  font-size: 11px;
  color: var(--muted);
  font-family: monospace;
}

.settings-footer {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.save-msg {
  font-size: 13px;
  color: var(--success);
  font-weight: 600;
}


/* =========================
   スマホ対応
========================= */

@media (max-width: 768px) {

  main {
    padding: 8px;
  }

  .summary-card .value {
    font-size: 22px;
  }

.table-card {
    border-radius: 8px;
    padding: 4px;
  }

  table {
    font-size: 12px;
  }

  td,
  th {
    padding: 8px;
  }
}

/* ========================================
   テーブル列幅・数値表示
======================================== */

.col-id {
  width: 70px;
}

.col-date {
  width: 190px;
}

.col-title {
  min-width: 260px;
}

.col-duration {
  width: 120px;
}

.col-distance {
  width: 110px;
}

.col-pace {
  width: 100px;
}

.col-heart {
  width: 100px;
}

.num {
  text-align: right;
}

/* ========================================
   Zebra表示強化
======================================== */

tbody tr:nth-child(even) td {
  background-color: #edf4ff !important;
}

tbody tr:hover td {
  background-color: #dbeafe !important;
}