/* /usage/ tells one story: overview → momentum → rhythm → composition.
   Chart markup is produced by scripts/usage-page.js and inherits Work tokens. */
.usage-page-body .page {
  max-width: none;
  padding-bottom: 120px;
}

.usage-page-head,
.usage-page-grid,
.usage-more,
.usage-method-note,
.usage-data-settings {
  width: min(var(--page-max), calc(100% - 40px));
  margin-inline: auto;
}

.usage-page-head { margin-top: 8px; }
.usage-page-head .page-head { align-items: end; }
.usage-page-head .page-sub { max-width: 760px; }
.usage-page-kicker {
  margin-bottom: 8px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.usage-page-meta {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-top: 22px;
}
.usage-page-privacy {
  max-width: 720px;
  color: var(--text-3);
  font-size: 13px;
  line-height: 1.6;
}
.usage-range {
  display: inline-flex;
  flex: none;
  gap: 3px;
  padding: 4px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  background: color-mix(in srgb, var(--surface) 82%, transparent);
  box-shadow: var(--card-shadow);
  backdrop-filter: blur(20px) saturate(1.2);
}
.usage-range button {
  min-width: 54px;
  min-height: 34px;
  padding: 0 13px;
  border-radius: 999px;
  color: var(--text-3);
  font: inherit;
  font-size: 12px;
  font-weight: 700;
}
.usage-range button:hover { color: var(--text); }
.usage-range button.is-active {
  background: var(--text);
  color: var(--bg);
  box-shadow: 0 5px 16px color-mix(in srgb, var(--text) 18%, transparent);
}
.usage-range button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.usage-page-summary {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 28px;
}
.ustat {
  display: flex;
  min-height: 146px;
  flex-direction: column;
  justify-content: space-between;
  gap: 8px;
  padding: 20px;
  border: 1px solid var(--hairline);
  border-radius: 24px;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  box-shadow: var(--card-shadow);
  backdrop-filter: blur(24px) saturate(1.15);
}
.ustat strong {
  color: var(--text);
  font-family: var(--font-display);
  font-size: clamp(29px, 3.3vw, 43px);
  font-weight: 720;
  letter-spacing: -0.045em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.ustat-k {
  color: var(--text-2);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.01em;
}
.ustat-sub {
  min-height: 2.8em;
  color: var(--text-3);
  font-size: 11px;
  line-height: 1.4;
}

.usage-insights {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 12px;
  overflow: hidden;
  border: 1px solid var(--hairline);
  border-radius: 20px;
  background: color-mix(in srgb, var(--surface) 68%, transparent);
}
.uinsight {
  display: flex;
  min-width: 0;
  align-items: baseline;
  gap: 8px;
  padding: 14px 16px;
}
.uinsight + .uinsight { border-left: 1px solid var(--hairline); }
.uinsight strong {
  color: var(--text);
  font-size: 14px;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.uinsight span {
  overflow: hidden;
  color: var(--text-3);
  font-size: 11px;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.usage-page-state { margin-top: 11px; color: var(--text-3); font-size: 11px; }

.usage-page-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: stretch;
  gap: 18px;
  margin-top: 30px;
}
.ucard-wide { grid-column: 1 / -1; }
.ucard {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: 26px;
  border: 1px solid var(--hairline);
  border-radius: 28px;
  background: color-mix(in srgb, var(--surface) 91%, transparent);
  box-shadow: var(--card-shadow);
  backdrop-filter: blur(22px) saturate(1.1);
}
.ucard-lead { padding-top: 28px; }
.ucard-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 22px;
}
.ucard-title {
  color: var(--text);
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 720;
  letter-spacing: -0.025em;
}
.ucard-note {
  max-width: 560px;
  margin-top: 5px;
  color: var(--text-3);
  font-size: 12.5px;
  line-height: 1.5;
}
.ucard-body { flex: 1 1 auto; min-width: 0; overflow-x: auto; scrollbar-width: thin; }
.uchart-svg { display: block; width: 100%; height: auto; }
#uchart-calendar { display: flex; flex-wrap: wrap; justify-content: center; }
#uchart-calendar .uchart-svg { width: var(--cal-w, 100%); max-width: 100%; }
#uchart-rhythm .uchart-svg { min-width: 0; }
.ucard-caption {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--hairline);
  color: var(--text-3);
  font-size: 12px;
  line-height: 1.55;
}
.ucard-caption strong { color: var(--text); font-weight: 700; }

/* Chart primitives */
.usage-page-body { --usage-empty: color-mix(in srgb, var(--accent) 7%, var(--surface)); }
.usage-cell { transition: fill 180ms ease; }
.usage-cell[data-usage-tip],
.ucol[data-usage-tip],
.umix[data-usage-tip],
.usage-trend-hit { cursor: crosshair; }
.usage-cell[data-usage-tip]:hover { stroke: var(--text); stroke-width: 1.5; }
.usage-cell-empty { fill: var(--usage-empty); background: var(--usage-empty); }
.usage-cell-outside { fill: transparent; }
.usage-cell-q0 { fill: color-mix(in srgb, var(--accent) 25%, var(--surface)); background: color-mix(in srgb, var(--accent) 25%, var(--surface)); }
.usage-cell-q1 { fill: color-mix(in srgb, var(--accent) 45%, var(--surface)); background: color-mix(in srgb, var(--accent) 45%, var(--surface)); }
.usage-cell-q2 { fill: color-mix(in srgb, var(--accent) 68%, var(--surface)); background: color-mix(in srgb, var(--accent) 68%, var(--surface)); }
.usage-cell-q3 { fill: var(--accent); background: var(--accent); }
.usage-day-label,
.ucol-label { fill: var(--text-3); font-family: var(--font); font-size: 9px; }
.ucol { fill: var(--accent); opacity: 0.42; transition: opacity 0.18s; }
.ucol:hover,
.ucol.is-peak { opacity: 1; }
.ugrid { stroke: var(--hairline); stroke-width: 1; }
.utrend-mean { stroke: var(--text-3); stroke-width: 1.5; stroke-dasharray: 4 4; opacity: 0.58; }
.usage-trend-area { fill: color-mix(in srgb, var(--accent) 13%, transparent); }
.usage-trend-line { stroke: var(--accent); stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; }
.usage-trend-partial { stroke: var(--accent); stroke-width: 2.5; stroke-dasharray: 7 6; }
.usage-trend-partial-dot { fill: var(--surface); stroke: var(--accent); stroke-width: 2.5; }
.usage-trend-hit { fill: transparent; transition: fill 120ms ease; }
.usage-trend-hit:hover { fill: color-mix(in srgb, var(--accent) 8%, transparent); }
.umix[data-usage-tip] { transition: opacity 120ms ease; }
.umix[data-usage-tip]:hover { opacity: 0.78; }
.usage-chart-tooltip {
  position: fixed;
  z-index: 1000;
  max-width: min(310px, calc(100vw - 20px));
  padding: 9px 11px;
  border: 1px solid color-mix(in srgb, var(--hairline) 75%, var(--text));
  border-radius: 11px;
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  box-shadow: 0 12px 34px color-mix(in srgb, var(--text) 18%, transparent);
  color: var(--text);
  font-size: 11px;
  font-weight: 650;
  line-height: 1.4;
  font-variant-numeric: tabular-nums;
  pointer-events: none;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 100ms ease, transform 100ms ease;
  backdrop-filter: blur(22px) saturate(1.25);
}
.usage-chart-tooltip.is-visible { opacity: 1; transform: translateY(0); }
.uheat-legend,
.utrend-legend {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
  margin-top: 10px;
  color: var(--text-3);
  font-size: 10px;
}
.uheat-legend i { width: 11px; height: 11px; border-radius: 3px; }
.utrend-legend { gap: 18px; }
.utrend-legend span { display: inline-flex; align-items: center; gap: 7px; }
.utrend-legend i { width: 22px; height: 0; border-top: 2px solid var(--accent); }
.utrend-legend .is-average { border-color: var(--text-3); border-top-style: dotted; }
.utrend-legend .is-partial { border-top-style: dashed; }

.ubars { display: flex; flex-direction: column; gap: 13px; }
.ubar-row { display: grid; grid-template-columns: minmax(92px, 28%) 1fr auto; align-items: center; gap: 12px; font-size: 12px; }
.ubar-label { overflow: hidden; color: var(--text-2); text-overflow: ellipsis; white-space: nowrap; }
.ubar-track { height: 8px; overflow: hidden; border-radius: 999px; background: var(--chip-bg); }
.ubar-fill { display: block; height: 100%; border-radius: inherit; background: var(--accent); }
.ubar-value { color: var(--text); white-space: nowrap; font-variant-numeric: tabular-nums; }
.ubar-pct { margin-left: 7px; color: var(--text-3); }

.umix-svg { width: 100%; height: 46px; overflow: hidden; border-radius: 13px; }
.umix-0 { fill: var(--accent); }
.umix-1 { fill: color-mix(in srgb, var(--accent) 76%, var(--surface)); }
.umix-2 { fill: color-mix(in srgb, var(--accent) 55%, var(--surface)); }
.umix-3 { fill: color-mix(in srgb, var(--accent) 34%, var(--surface)); }
.umix-4 { fill: color-mix(in srgb, var(--accent) 18%, var(--surface)); }
.umix-legend { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px 16px; margin-top: 18px; color: var(--text-3); font-size: 11px; }
.umix-key { display: inline-flex; min-width: 0; align-items: center; gap: 8px; }
.umix-key > span:last-child { display: flex; min-width: 0; flex: 1; justify-content: space-between; gap: 7px; }
.umix-key strong { margin-left: auto; color: var(--text); font-variant-numeric: tabular-nums; }
.umix-key small { min-width: 42px; color: var(--text-3); text-align: right; }
.umix-swatch { width: 9px; height: 9px; flex: none; border-radius: 3px; }
.umix-swatch.umix-0 { background: var(--accent); }
.umix-swatch.umix-1 { background: color-mix(in srgb, var(--accent) 76%, var(--surface)); }
.umix-swatch.umix-2 { background: color-mix(in srgb, var(--accent) 55%, var(--surface)); }
.umix-swatch.umix-3 { background: color-mix(in srgb, var(--accent) 34%, var(--surface)); }
.umix-swatch.umix-4 { background: color-mix(in srgb, var(--accent) 18%, var(--surface)); }

.usage-more,
.usage-data-settings {
  margin-top: 20px;
  border: 1px solid var(--hairline);
  border-radius: 26px;
  background: color-mix(in srgb, var(--surface) 72%, transparent);
  box-shadow: var(--card-shadow);
}
.usage-more > summary,
.usage-data-settings > summary {
  padding: 20px 24px;
  color: var(--text-2);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
}
.usage-more > summary::-webkit-details-marker,
.usage-data-settings > summary::-webkit-details-marker { display: none; }
.usage-more > summary::after,
.usage-data-settings > summary::after { content: '+'; float: right; color: var(--accent); font-size: 19px; line-height: 1; }
.usage-more[open] > summary::after,
.usage-data-settings[open] > summary::after { content: '−'; }
.usage-more-note { margin: -5px 24px 20px; color: var(--text-3); font-size: 12px; }
.usage-detail-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; padding: 0 18px 18px; }
.usage-detail-grid #ucard-calendar { grid-column: 1 / -1; }
.usage-method-note {
  margin-top: 16px;
  color: var(--text-3);
  font-size: 11px;
  line-height: 1.55;
  text-align: center;
}

.usage-settings-inner { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: 36px; padding: 4px 24px 26px; }
.usage-unlock h2,
.usage-cli-title { font-family: var(--font-display); font-size: 20px; letter-spacing: -0.02em; }
.usage-unlock-note,
.usage-cli-lead,
.ucli-note,
.usage-cli-foot { color: var(--text-3); font-size: 12px; line-height: 1.65; }
.usage-unlock-note,
.usage-cli-lead { margin: 8px 0 16px; }
.usage-unlock-form { display: flex; flex-wrap: wrap; gap: 8px; }
.usage-unlock-input {
  min-width: 0;
  flex: 1 1 190px;
  min-height: 42px;
  padding: 0 13px;
  border: 1px solid var(--hairline);
  border-radius: 12px;
  outline: none;
  background: var(--bg);
  color: var(--text);
  font: inherit;
  font-size: 13px;
}
.usage-unlock-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.usage-unlock-btn { min-height: 42px; padding: 0 15px; border-radius: 12px; background: var(--chip-bg); font-size: 12px; font-weight: 700; }
.usage-unlock-btn:hover { color: #fff; background: var(--accent); }
.usage-unlock-clear { color: var(--text-3); }
.usage-unlock-state { margin-top: 10px; color: var(--text-3); font-size: 11px; }
.usage-unlock-state.is-err { color: #ff5b61; }

.usage-cli { min-width: 0; }
.ucli-cmd {
  display: flex;
  width: 100%;
  min-width: 0;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--hairline);
  border-radius: 12px;
  background: var(--bg);
  color: var(--text);
  text-align: left;
}
.ucli-cmd:hover { border-color: var(--accent); background: var(--accent-soft); }
.ucli-cmd code { flex: 1 1 auto; min-width: 0; overflow-x: auto; white-space: nowrap; scrollbar-width: none; }
.ucli-cmd code::-webkit-scrollbar { display: none; }
.ucli-dollar,
.ucli-copy { color: var(--text-3); }
.ucli-copy { flex: none; font-size: 10px; }
.ucli-cmd.is-copied .ucli-copy { color: var(--live); }
.ucli-note { margin-top: 10px; }
.usage-cli-after { margin: 18px 0 8px; color: var(--text-2); font-size: 12px; }
.ucli-cmds { display: grid; gap: 7px; }
.ucli-cmds > li { display: grid; grid-template-columns: minmax(0, max-content) 1fr; align-items: center; gap: 10px; }
.ucli-inline-note { color: var(--text-3); font-size: 11px; }
.usage-cli-foot { margin-top: 16px; }
.usage-cli-foot a { color: var(--text); text-decoration: underline; text-decoration-color: var(--hairline); text-underline-offset: 3px; }
.usage-cli code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }

@container page (max-width: 860px) {
  .usage-page-head,
  .usage-page-grid,
  .usage-more,
  .usage-method-note,
  .usage-data-settings { width: min(var(--page-max), calc(100% - 28px)); }
  .usage-page-summary { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .usage-insights { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .uinsight:nth-child(3) { border-left: 0; border-top: 1px solid var(--hairline); }
  .uinsight:nth-child(4) { border-top: 1px solid var(--hairline); }
  .usage-page-grid { grid-template-columns: minmax(0, 1fr); }
  .ucard-wide { grid-column: auto; }
  .usage-settings-inner { grid-template-columns: minmax(0, 1fr); }
}

@container page (max-width: 540px) {
  .usage-page-body .page { padding-bottom: 150px; }
  .usage-page-head .page-head { align-items: start; }
  .usage-page-meta { align-items: start; flex-direction: column; gap: 16px; }
  .usage-range { align-self: stretch; }
  .usage-range button { flex: 1; }
  .usage-page-summary { gap: 9px; }
  .ustat { min-height: 132px; padding: 16px; border-radius: 20px; }
  .ustat strong { font-size: 31px; }
  .ustat-sub { font-size: 10px; }
  .usage-insights { border-radius: 18px; }
  .uinsight { align-items: start; flex-direction: column; gap: 3px; padding: 12px; }
  .uinsight span { max-width: 100%; }
  .ucard { padding: 20px; border-radius: 23px; }
  .ucard-head { margin-bottom: 18px; }
  .ucard-title { font-size: 19px; }
  #uchart-rhythm { overflow: hidden; }
  #uchart-rhythm .uchart-svg { width: 100%; min-width: 0; }
  .utrend-legend { flex-wrap: wrap; justify-content: flex-start; gap: 8px 14px; }
  .umix-legend { grid-template-columns: minmax(0, 1fr); }
  .ubar-row { grid-template-columns: minmax(72px, 28%) 1fr auto; gap: 8px; }
  .usage-detail-grid { grid-template-columns: minmax(0, 1fr); padding: 0 10px 10px; }
  .usage-detail-grid #ucard-calendar { grid-column: auto; }
  .usage-more > summary,
  .usage-data-settings > summary { padding: 18px; }
  .usage-more-note { margin-inline: 18px; }
  .usage-settings-inner { padding: 0 18px 22px; }
  .ucli-cmds > li { grid-template-columns: minmax(0, 1fr); gap: 4px; }
}