:root {
  --bg: #f5f6f5;
  --card-strong: #fff;
  --ink: #252b29;
  --muted: #68716c;
  --border: #dce1dd;
  --accent: #bd4435;
  --accent-deep: #963326;
  font-family: "Avenir Next", "Segoe UI", sans-serif;
  font-size: 14px;
  color: var(--ink);
  background: var(--bg);
}
* { box-sizing: border-box; letter-spacing: 0; }
[hidden] { display: none !important; }
body { margin: 0; min-height: 100vh; }
button, input, select { font: inherit; color: inherit; }
button, summary { cursor: pointer; }
button { min-height: 34px; padding: 6px 11px; border: 1px solid transparent; border-radius: 6px; background: var(--accent); color: #fff; white-space: nowrap; }
button:hover { background: var(--accent-deep); }
button:disabled { opacity: .55; cursor: not-allowed; }
input, select { width: 100%; min-width: 0; min-height: 34px; padding: 6px 9px; border: 1px solid var(--border); border-radius: 6px; background: #fff; }
input:focus-visible, select:focus-visible, button:focus-visible, summary:focus-visible { outline: 2px solid #216869; outline-offset: 2px; }
.quiet-button, .delete-button { background: #eef1ee; color: var(--ink); }
.quiet-button:hover, .delete-button:hover { background: #e0e6e1; }
.quiet-button[aria-pressed="true"] { background: #e2ece7; border-color: #729b86; color: #204d39; }
.page-shell { width: min(1120px, calc(100% - 32px)); margin: 0 auto; padding-bottom: 28px; }
.app-header { min-height: 50px; display: flex; align-items: center; justify-content: space-between; gap: 16px; border-bottom: 1px solid var(--border); }
h1, h2, h3 { margin: 0; font-weight: 700; }
h1 { font-size: 20px; line-height: 1.2; }
h2 { font-size: 17px; }
h3 { font-size: 14px; }
.account-menu { position: relative; }
.account-menu summary { padding: 8px; border-radius: 6px; }
.account-menu summary:hover { background: #e9eeea; }
.account-menu-content { position: absolute; right: 0; top: calc(100% + 6px); z-index: 10; width: min(310px, calc(100vw - 32px)); padding: 14px; display: grid; gap: 12px; background: #fff; border: 1px solid var(--border); border-radius: 8px; box-shadow: 0 6px 20px #252b291a; }
#account-name { overflow-wrap: anywhere; min-width: 0; }
.timezone-setting { display: grid; gap: 5px; }
.timezone-setting label { font-size: 12px; color: var(--muted); }
.summary-bar { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); padding: 14px 0; margin-bottom: 16px; border-bottom: 1px solid var(--border); }
.summary-card { display: flex; align-items: baseline; gap: 10px; padding: 0 16px; min-width: 0; }
.summary-card:first-child { padding-left: 0; }
.summary-card + .summary-card { border-left: 1px solid var(--border); }
.summary-label { color: var(--muted); font-size: 12px; }
.summary-card strong { font-size: 20px; line-height: 1.2; font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.grid { display: grid; grid-template-columns: minmax(0, 330px) minmax(0, 1fr); gap: 24px; }
.controls-panel { border-right: 1px solid var(--border); padding-right: 24px; }
.panel { min-width: 0; }
.right-stack { display: grid; gap: 20px; align-content: start; min-width: 0; }
.panel-header { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 10px; }
.panel-header p { margin: 3px 0 0; font-size: 12px; color: var(--muted); }
.controls-panel .panel-header { flex-wrap: wrap; }
.date-controls, .quick-jumps, .inline-form, .session-form, .section-row, .session-row, .session-main, .session-actions { display: flex; align-items: center; gap: 8px; }
.icon-button { width: 34px; flex: 0 0 34px; padding: 0; font-size: 18px; }
.quick-jumps { margin: 8px 0 18px; }
.quick-jumps button { background: transparent; color: var(--ink); border-color: var(--border); }
.quick-jumps button:hover { background: #e9eeea; }
.section-block + .section-block { margin-top: 18px; }
.section-row { justify-content: space-between; margin-bottom: 8px; }
.category-chips { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 8px; }
.category-chip { padding: 5px 9px; border-color: var(--border); background: #fff; color: var(--ink); }
.category-chip:hover { background: #e9eeea; }
.category-chip.active { border-color: transparent; background: var(--chip-color, var(--accent)); color: white; }
.parse-preview { display: grid; gap: 3px; margin-top: 10px; padding: 8px 0; border-top: 1px solid var(--border); font-size: 13px; }
.preview-title { font-size: 11px; color: var(--muted); }
.preview-duration { color: var(--muted); }
.form-error, #settings-error, #auth-error { margin: 8px 0 0; color: var(--accent-deep); overflow-wrap: anywhere; }
.session-list { display: grid; gap: 4px; }
.session-row { justify-content: space-between; padding: 7px 9px; border-bottom: 1px solid var(--border); background: #fff; }
.session-main, .session-copy { min-width: 0; }
.session-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); flex: 0 0 auto; }
.session-range, .session-duration { font-size: 13px; }
.session-range { overflow-wrap: anywhere; }
.session-actions { flex-shrink: 0; }
.session-duration { min-width: 30px; text-align: right; }
.delete-button { padding: 3px 7px; min-height: 28px; font-size: 12px; }
.empty-state { padding: 18px 0; color: var(--muted); font-size: 13px; }
.stats-panel { border-top: 1px solid var(--border); padding-top: 16px; }
.chart-controls { display: grid; grid-template-columns: auto repeat(2, minmax(0, 1fr)); align-items: end; gap: 10px; margin-bottom: 12px; }
.chart-presets { display: flex; gap: 4px; }
.date-field { display: grid; gap: 4px; min-width: 0; }
.date-field span { font-size: 11px; color: var(--muted); }
.chart-legend { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; color: var(--muted); font-size: 12px; margin-bottom: 8px; }
.chart-legend span { display: inline-flex; gap: 6px; align-items: center; }
.legend-bar, .legend-line { display: inline-block; width: 16px; height: 8px; border-radius: 2px; background: var(--accent); }
.legend-line { height: 2px; background: var(--ink); }
.stats-chart { min-height: 180px; overflow: hidden; }
.stats-chart svg { display: block; width: 100%; height: auto; }
.chart-grid { stroke: var(--border); stroke-width: 1; }
.chart-axis, .chart-axis-title { fill: var(--muted); font-size: 12px; }
.chart-axis-title, .chart-weekday { font-weight: 700; }
.chart-weekday { fill: var(--ink); }
.chart-bar { opacity: .82; }
.chart-line { fill: none; stroke: var(--ink); stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }
.chart-point { fill: var(--card-strong); stroke: var(--ink); stroke-width: 2; }
.auth-page { width: min(400px, calc(100% - 32px)); margin: 4rem auto; }
.auth-page h1 { font-size: 28px; }
.auth-page h2 { font-size: 20px; }
.auth-form { display: grid; gap: 12px; }
@media (max-width: 900px) {
  .chart-controls { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .chart-presets { grid-column: 1 / -1; }
  .summary-card { flex-direction: column; gap: 4px; }
}
@media (max-width: 700px) {
  .page-shell { width: calc(100% - 24px); }
  .grid { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  .controls-panel { border-right: 0; padding-right: 0; }
  .summary-bar { margin-bottom: 14px; padding: 12px 0; }
  .summary-card { padding: 0 10px; }
  .summary-card strong { font-size: 18px; }
  .session-form input, .inline-form input { flex: 1; }
  .sessions-panel { padding-top: 14px; border-top: 1px solid var(--border); }
}