/* ── Tokens ─────────────────────────────────────────────────────────────── */
:root {
  --bg:      #f2f2f7;
  --surface: #ffffff;
  --border:  #e0e0e5;
  --text:    #1c1c1e;
  --text2:   #6c6c70;
  --text3:   #aeaeb2;
  --accent:  #4f46e5;
  --acc-lt:  #eef2ff;
  --acc-fg:  #ffffff;
  --danger:  #ff3b30;
  --r:  14px; --r-sm: 9px; --r-xs: 5px; --r-pill: 999px;
  --ease: cubic-bezier(.25,.46,.45,.94);
  --sb-w: 64px;
  --sb-bg: #18181b; --sb-fg: rgba(255,255,255,.75); --sb-hi: #ffffff;
}
[data-theme="dark"] {
  --bg:      #111113;
  --surface: #1e1e20;
  --border:  #333337;
  --text:    #f0f0f2;
  --text2:   #8a8a90;
  --text3:   #58585e;
}

/* ── Reset ───────────────────────────────────────────────────────────────── */
*,::before,::after { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text);
  font: 14px/1.55 -apple-system,BlinkMacSystemFont,"SF Pro Text",system-ui,sans-serif;
  -webkit-font-smoothing: antialiased; }
a,button { color: inherit; font: inherit; }
h1,h2,h3 { margin: 0; }

/* ── Sidebar ─────────────────────────────────────────────────────────────── */
.sidebar {
  position: fixed; left: 0; top: 0; bottom: 0; width: var(--sb-w);
  background: var(--sb-bg);
  display: flex; flex-direction: column; align-items: center;
  padding: 12px 0; z-index: 30;
}
.sb-logo { display: flex; align-items: center; justify-content: center;
  width: 42px; height: 42px; margin-bottom: 8px; text-decoration: none; flex-shrink: 0; }
.sb-nav { display: flex; flex-direction: column; align-items: center; gap: 4px; flex: 1; margin-top: 4px; }
.sb-foot { padding-bottom: 4px; }
.sb-item {
  display: flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: var(--r-sm);
  color: var(--sb-fg); text-decoration: none;
  border: none; background: transparent; cursor: pointer;
  transition: background .12s, color .12s;
}
.sb-item:hover { background: rgba(255,255,255,.1); color: var(--sb-hi); }
.sb-item.sb-active,
.sb-item.sb-active:hover {
  color: #fff;
  background: rgba(255,255,255,.12);
  opacity: 1;
}
.sb-item.sb-active svg { color: #fff; stroke: currentColor; opacity: 1; }
.sb-dim { opacity: .4; }
.sb-dim:hover { opacity: .8; }
.icon-moon { display: none; }
[data-theme="dark"] .icon-moon { display: block; }
[data-theme="dark"] .icon-sun  { display: none; }

/* ── Wrap & Header ───────────────────────────────────────────────────────── */
.wrap { margin-left: var(--sb-w); min-height: 100vh; }
.site-header {
  position: sticky; top: 0; z-index: 20;
  background: rgba(255,255,255,.88); border-bottom: 1px solid var(--border);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  padding: 0 28px; display: flex; align-items: center; min-height: 50px;
}
[data-theme="dark"] .site-header { background: rgba(30,30,32,.92); }
.app-title { font-size: 16px; font-weight: 700; letter-spacing: -.3px; }
main { max-width: 960px; margin: 0 auto; padding: 20px 24px 80px; display: grid; gap: 14px; }

/* ── Cards ───────────────────────────────────────────────────────────────── */
.card { background: var(--surface); border-radius: var(--r); padding: 22px 24px;
  box-shadow: 0 1px 3px rgba(0,0,0,.06), 0 1px 1px rgba(0,0,0,.04); }
[data-theme="dark"] .card { box-shadow: 0 1px 3px rgba(0,0,0,.3); }
.section-label { margin: 0 0 14px; font-size: 11px; font-weight: 700;
  text-transform: uppercase; letter-spacing: .7px; color: var(--text3); }
.section-head { display: flex; align-items: center; justify-content: space-between;
  gap: 8px; flex-wrap: wrap; margin-bottom: 18px; }
.section-head .section-label { margin-bottom: 0; }
.error { margin: 0 0 14px; padding: 10px 14px; border-radius: var(--r-sm);
  font-size: 13px; color: #a00; background: #fff5f5; border: 1px solid #fdd; }

/* ── Form ────────────────────────────────────────────────────────────────── */
form.add { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 14px; align-items: end; }
form.add > * { grid-column: 1 / -1; }
.form-dash { display: none; }
.field { display: grid; gap: 5px; color: var(--text3);
  font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: .5px; }
input, select {
  width: 100%; min-height: 40px; padding: 0 12px;
  border: 1px solid var(--border); border-radius: var(--r-sm);
  background: var(--surface); color: var(--text);
  font: 14px/1 -apple-system,BlinkMacSystemFont,system-ui,sans-serif;
  outline: none; -webkit-appearance: none; appearance: none;
  transition: border-color .14s, box-shadow .14s;
}
input:focus, select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb,var(--accent) 12%,transparent);
}
.btn-primary {
  min-height: 40px; border: none; border-radius: var(--r-sm); white-space: nowrap;
  background: var(--accent); color: var(--acc-fg);
  padding: 0 22px; font-weight: 600; font-size: 14px; cursor: pointer;
  transition: opacity .12s, transform .1s;
}
.btn-primary:hover { opacity: .87; }
.btn-primary:active { transform: scale(.97); }
.btn-sm { min-height: 34px; padding: 0 14px; font-size: 13px; }
.btn-ghost-link { color: var(--accent); text-decoration: none; font-size: 13px; }
.form-actions { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }

/* ── Berserk ─────────────────────────────────────────────────────────────── */
.berserk-wrap { position: relative; margin-top: 4px; }
.berserk-btn { background: none; border: none; padding: 2px 0; cursor: pointer; font-size: .8rem; font-weight: 600; color: var(--accent); user-select: none; }
.berserk-btn.berserk-on { background: color-mix(in srgb, var(--accent) 12%, transparent); border-radius: var(--r-sm); padding: 2px 6px; }
.berserk-popover { display: none; position: absolute; top: calc(100% + 4px); left: 0; z-index: 40;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-sm);
  box-shadow: 0 6px 18px rgba(0,0,0,.12); padding: 4px 6px;
  min-width: 180px; flex-direction: column; gap: 1px; }
.berserk-popover.open { display: flex; }
.berserk-cat-chip { display: flex; align-items: center; gap: 8px; padding: 6px 8px; border-radius: var(--r-sm); font-size: .85rem; cursor: pointer; color: var(--text); transition: background .1s; }
.berserk-cat-chip:hover { background: var(--hover, rgba(0,0,0,.04)); }
.berserk-cat-chip input[type=checkbox] { display: none; }
.berserk-cat-chip:has(input:checked) { background: color-mix(in srgb, var(--accent) 10%, transparent); color: var(--accent); font-weight: 600; }
.berserk-save-btn { display: inline-block; margin-top: 6px; padding: 5px 14px; background: var(--accent); color: #fff; border: none; border-radius: var(--r-sm); font-size: .82rem; font-weight: 600; cursor: pointer; }
.berserk-save-btn:hover { opacity: .88; }
.entry-berserk { margin-right: 3px; font-style: normal; }

/* ── Daily hours ─────────────────────────────────────────────────────────── */
.daily-hours-label { display: inline-flex; align-items: center; gap: 6px; font-size: .78rem; color: var(--text2); white-space: nowrap; }
.daily-hours-input { min-height: 30px; padding: 0 4px; border: 1px solid var(--border); border-radius: var(--r-xs); background: var(--surface); color: var(--text); font: inherit; text-align: center; }
.daily-hours-input:focus { outline: none; border-color: var(--accent); }

/* ── Category panel ──────────────────────────────────────────────────────── */
.cat-list { margin: 0; padding: 0; list-style: none; display: grid; gap: 4px; }
.cat-item { display: flex; align-items: center; gap: 8px; padding: 6px 10px;
  background: color-mix(in srgb,var(--text) 4%,transparent);
  border-radius: var(--r-sm); }
.cat-archived { opacity: .4; }
.cat-dot { width: 9px; height: 9px; border-radius: 50%; flex-shrink: 0; }
.cat-rename { display: flex; align-items: center; gap: 4px; flex: 1; min-width: 0; }
.cat-input { min-height: 30px; padding: 0 8px; font-size: 13px;
  border: 1px solid transparent; border-radius: var(--r-xs);
  background: transparent; width: 100%; transition: border-color .12s; }
.cat-input:focus { border-color: var(--accent); background: var(--surface); }
.cat-actions { display: flex; gap: 3px; flex-shrink: 0; }
.badge-arch { font-size: 11px; color: var(--text3); }
.btn-icon-sm { display: flex; align-items: center; justify-content: center;
  width: 26px; height: 26px; border: none; border-radius: var(--r-xs);
  background: transparent; cursor: pointer; color: var(--text2);
  transition: background .1s, color .1s; }
.btn-icon-sm:hover { background: color-mix(in srgb,var(--text) 8%,transparent); color: var(--text); }
.btn-mute:hover { color: var(--text2); }
.btn-danger:hover { color: var(--danger) !important; }
.cat-add { display: flex; gap: 8px; flex-wrap: wrap; align-items: end; margin-top: 10px; }
.cat-add input[type=text] { flex: 1; min-width: 140px; min-height: 36px; padding: 0 10px;
  border: 1px solid var(--border); border-radius: var(--r-sm); background: var(--surface);
  color: var(--text); font: inherit; outline: none; -webkit-appearance: none; appearance: none; }
.cat-add input[type=text]:focus { border-color: var(--accent); }
input[type=color].color-pick { width: 36px; height: 36px; padding: 2px;
  border: 1px solid var(--border); border-radius: var(--r-xs);
  background: var(--surface); cursor: pointer; }

/* ── Period nav ──────────────────────────────────────────────────────────── */
.period-nav { display: flex; gap: 4px; flex-wrap: wrap; }
.pnav-item { display: inline-flex; align-items: center; min-height: 28px; padding: 0 12px;
  border: 1px solid var(--border); border-radius: var(--r-pill);
  color: var(--text2); font-size: 13px; font-weight: 500; text-decoration: none;
  transition: background .1s, border-color .1s, color .1s; white-space: nowrap; }
.pnav-item:hover { border-color: var(--text3); color: var(--text); }
.pnav-item.active { background: var(--text); color: var(--bg); border-color: var(--text); }

/* ── Overview / charts ───────────────────────────────────────────────────── */
.overview { display: grid; gap: 28px; }
.chart { display: grid; gap: 16px; }
.chart-meta { display: grid; gap: 10px; justify-items: center; }
h3 { font-size: 13px; font-weight: 600; }
.range { color: var(--text3); font-size: 11px; font-variant-numeric: tabular-nums; margin-top: 2px; }
.ring { width: 136px; aspect-ratio: 1; border-radius: 50%; background: var(--ring);
  position: relative; display: grid; place-items: center; }
.ring::after { content: ""; position: absolute; inset: 20px; border-radius: 50%;
  background: var(--surface); }
.ring-center { position: relative; z-index: 1; text-align: center; display: grid; gap: 2px; }
.ring-center strong { font-size: 18px; font-weight: 700; letter-spacing: -.4px;
  font-variant-numeric: tabular-nums; line-height: 1; }
.ring-center span { color: var(--text3); font-size: 10px; text-transform: uppercase; letter-spacing: .5px; }
.chart-legend { margin: 0; padding: 0; list-style: none; display: grid; gap: 6px; }
.chart-row { display: grid; grid-template-columns: 8px minmax(0,1fr) auto auto;
  gap: 8px; align-items: center; font-size: 12px; min-width: 0; }
.chart-row.zero { opacity: .28; }
.swatch { width: 8px; height: 8px; border-radius: 50%; background: var(--swatch); }
.chart-label { min-width: 0; overflow-wrap: anywhere; color: var(--text2); }
.chart-value { font-weight: 600; font-variant-numeric: tabular-nums; }
.chart-pct { min-width: 3ch; text-align: right; color: var(--text3); font-variant-numeric: tabular-nums; }

/* ── View tabs & entries ─────────────────────────────────────────────────── */
.view-tabs { display: flex; gap: 2px; background: color-mix(in srgb,var(--text) 7%,transparent);
  border-radius: var(--r-pill); padding: 3px; }
.vtab { display: inline-flex; align-items: center; padding: 4px 16px; border-radius: var(--r-pill);
  font-size: 13px; font-weight: 500; color: var(--text2); text-decoration: none;
  transition: background .12s, color .12s; }
.vtab.active { background: var(--surface); color: var(--text);
  box-shadow: 0 1px 3px rgba(0,0,0,.1); }
.vtab-static { cursor: default; }
.totals { display: flex; flex-wrap: wrap; gap: 5px; margin-bottom: 14px; }
.pill { display: inline-flex; gap: 5px; align-items: baseline;
  background: color-mix(in srgb,var(--text) 6%,transparent);
  border-radius: var(--r-pill); padding: 3px 11px; font-size: 12px;
  text-decoration: none; color: inherit; }
.pill strong { font-weight: 600; }
.pill span { color: var(--text2); }
.pill--active { background: color-mix(in srgb,var(--accent) 14%,transparent); outline: 1.5px solid var(--accent); }
.pill--under { background: color-mix(in srgb,#f59e0b 14%,transparent); outline: 1px solid color-mix(in srgb,#f59e0b 45%,transparent); }
.pill--over { background: color-mix(in srgb,#ef4444 12%,transparent); outline: 1px solid color-mix(in srgb,#ef4444 45%,transparent); }
.pill-delta { font-style: normal; font-size: 11px; color: var(--text3); }
.pill--under .pill-delta { color: #d97706; }
.pill--over .pill-delta { color: #dc2626; }
.history-filter { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-bottom: 12px; }
.hist-date-input { width: auto; min-height: 32px; padding: 0 8px; font-size: 13px; }
.hist-limit-label { display: flex; align-items: center; gap: 5px; font-size: 12px; color: var(--text2); white-space: nowrap; }
.hist-limit-select { width: auto; min-height: 28px; padding: 0 6px; font-size: 12px; }
.hist-count-note { font-size: 12px; color: var(--text3); white-space: nowrap; }
.entries { margin: 0; padding: 0; list-style: none; display: grid; gap: 6px; }
.entry { display: grid; grid-template-columns: 1fr auto;
  grid-template-rows: auto auto; gap: 5px 14px;
  padding: 13px 14px 13px 17px; border-radius: var(--r-sm);
  background: color-mix(in srgb,var(--text) 4%,transparent);
  border-left: 3px solid var(--cat, var(--border));
  transition: background .1s, transform .12s var(--ease), box-shadow .12s; }
.entry:hover { background: color-mix(in srgb,var(--text) 7%,transparent);
  transform: translateY(-1px); box-shadow: 0 3px 10px rgba(0,0,0,.07); }
.entry-time { grid-column: 1; grid-row: 1; display: flex; flex-direction: column; gap: 1px; }
.entry-date { font-size: 10px; color: var(--text3); font-variant-numeric: tabular-nums;
  text-transform: uppercase; letter-spacing: .4px; }
.entry-range { display: flex; align-items: center; gap: 6px;
  font-size: 17px; font-weight: 600; font-variant-numeric: tabular-nums; letter-spacing: -.3px; }
.arr { color: var(--text3); font-weight: 300; font-size: 13px; }
.entry-info { grid-column: 1; grid-row: 2; display: flex; flex-wrap: wrap; gap: 5px; align-items: center; }
.entry-tag { display: inline-flex; padding: 2px 8px; border-radius: var(--r-pill);
  font-size: 11px; font-weight: 600; white-space: nowrap;
  background: color-mix(in srgb,var(--cat) 12%,transparent);
  color: color-mix(in srgb,var(--cat) 70%,var(--text)); }
.entry-note { color: var(--text2); font-size: 12px; overflow-wrap: anywhere; }
.entry-dur { grid-column: 2; grid-row: 1; align-self: start; font-size: 14px; font-weight: 700;
  font-variant-numeric: tabular-nums; color: var(--accent); white-space: nowrap; }
.entry-acts { grid-column: 2; grid-row: 2; align-self: end; justify-self: end;
  display: flex; gap: 5px; align-items: center; }
.act-link, .act-btn { display: flex; align-items: center; justify-content: center;
  width: 28px; height: 28px; border-radius: var(--r-xs);
  color: var(--text3); text-decoration: none; border: none; background: transparent; cursor: pointer;
  transition: background .1s, color .1s; }
.act-link:hover { color: var(--accent); background: var(--acc-lt); }
.act-btn:hover { color: var(--danger); background: color-mix(in srgb,var(--danger) 10%,transparent); }
.empty { color: var(--text3); padding: 32px 0; font-size: 13px; text-align: center; }

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (min-width: 480px) {
  .chart { grid-template-columns: 136px minmax(0,1fr); align-items: center; gap: 20px; }
  .chart-meta { justify-items: start; }
  .analytics-kpis { grid-template-columns: repeat(2,minmax(0,1fr)); }
}
@media (min-width: 720px) {
  .overview { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 20px; }
  .analytics-focus { grid-template-columns: minmax(0,1fr) 180px; }
  .insight-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .analytics-lab { grid-template-columns: minmax(0,1fr) minmax(260px,380px); }
  form.add { grid-template-columns: minmax(170px,.8fr) minmax(260px,1.2fr); align-items: end; }
  form.add > * { grid-column: auto; }
  form.add .time-range { grid-column: 2; max-width: 340px; }
  form.add .label-note { grid-column: 1 / -1; }
  form.add .form-actions { grid-column: 1 / -1; }
}
@media (min-width: 1040px) {
  form.add { grid-template-columns: 150px 280px minmax(220px,1fr) auto; }
  form.add .field-date { grid-column: 1; grid-row: 1; }
  form.add .time-range { grid-column: 2; grid-row: 1; max-width: none; }
  form.add .field-category { grid-column: 3; grid-row: 1; }
  form.add .form-actions { grid-column: 4; grid-row: 1; }
  form.add .label-note { grid-column: 1 / -1; grid-row: 2; }
}
@media (min-width: 900px) {
  .entry { grid-template-columns: 155px minmax(0,1fr) auto auto; grid-template-rows: auto; gap: 12px; align-items: center; }
  .entry-time,.entry-info,.entry-dur,.entry-acts { grid-column: auto; grid-row: auto; align-self: center; justify-self: auto; }
}
@media (max-width: 600px) {
  :root { --sb-w: 54px; }
  main { padding: 14px 14px 60px; gap: 10px; }
  .card { padding: 16px 16px; }
  form.add { grid-template-columns: 1fr 1fr; }
}
@media (prefers-reduced-motion: reduce) { *,::before,::after { transition-duration: .01ms !important; } }