:root {
  --bg: #f6f7f9; --card: #ffffff; --ink: #1c2330; --muted: #667085; --line: #e3e6ec;
  --accent: #3b5bdb; --accent-ink: #ffffff; --good: #2f9e44; --bad: #e03131; --warn: #f08c00;
  --major: #c92a2a; --minor: #5c7cfa; --radius: 12px;
  --shadow: 0 1px 2px rgba(16,24,40,.06), 0 1px 3px rgba(16,24,40,.08);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #12151b; --card: #1b2029; --ink: #e8ebf1; --muted: #98a2b3; --line: #2a303b;
    --accent: #748ffc; --accent-ink: #10131a; --good: #51cf66; --bad: #ff6b6b; --warn: #fcc419;
    --major: #ff8787; --minor: #91a7ff; --shadow: none; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #12151b; --card: #1b2029; --ink: #e8ebf1; --muted: #98a2b3; --line: #2a303b;
  --accent: #748ffc; --accent-ink: #10131a; --good: #51cf66; --bad: #ff6b6b; --warn: #fcc419;
  --major: #ff8787; --minor: #91a7ff; --shadow: none; color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
h1, h2, h3 { margin: 0; line-height: 1.25; }
h1 { font-size: 1.2rem; } h2 { font-size: 1.15rem; } h3 { font-size: 1rem; }
button, input, select, textarea { font: inherit; color: inherit; }
.muted { color: var(--muted); }
[hidden] { display: none !important; }

/* Header */
.top { position: sticky; top: 0; z-index: 5; display: flex; flex-wrap: wrap; align-items: center; gap: 10px 18px;
  padding: 10px 16px; background: var(--card); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 8px; }
.logo { font-size: 1.4rem; color: var(--accent); }
#tabs { display: flex; gap: 4px; flex: 1; min-width: 260px; }
#tabs button { border: 0; background: transparent; padding: 8px 12px; border-radius: 8px; cursor: pointer; color: var(--muted); font-weight: 600; }
#tabs button:hover { background: var(--bg); }
#tabs button.on { background: var(--accent); color: var(--accent-ink); }
.tools { display: flex; gap: 6px; flex-wrap: wrap; }

.btn { border: 1px solid var(--line); background: var(--card); padding: 7px 12px; border-radius: 8px; cursor: pointer; font-weight: 600; }
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn.ghost { border-color: transparent; background: transparent; }
.btn.ghost:hover { background: var(--bg); }
.btn.danger { color: var(--bad); border-color: var(--bad); }
.btn.sm { padding: 3px 9px; font-size: .85rem; }
.link { background: none; border: 0; padding: 0; color: var(--accent); cursor: pointer; text-decoration: underline; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

main { max-width: 1100px; margin: 0 auto; padding: 16px; }
.navbar { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; }
.navbar h2 { flex: 1; text-align: center; }
footer { text-align: center; color: var(--muted); font-size: .85rem; padding: 20px 16px 40px; }

/* Banner */
.banner { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; padding: 10px 14px; margin-bottom: 12px;
  border: 1px solid var(--warn); border-radius: var(--radius); background: color-mix(in srgb, var(--warn) 12%, var(--card)); }
.banner span { flex: 1; min-width: 200px; }

/* Panels & layout */
.panel { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; box-shadow: var(--shadow); }
.panel > header { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.panel > header h3 { flex: 1; }
.stack { display: grid; gap: 14px; }
.grid2 { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.empty { color: var(--muted); padding: 8px 2px; list-style: none; }

/* Quick add */
.quick { display: flex; gap: 8px; flex-wrap: wrap; }
.quick input[name="title"] { flex: 1; min-width: 180px; }
.quick input, .quick select, .form input, .form select, .form textarea, .settings input {
  padding: 8px 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); width: 100%; }
.quick input, .quick select { width: auto; }
.quick input[name="title"] { width: auto; flex: 1; }

/* Progress */
.progress { height: 10px; background: var(--bg); border-radius: 99px; overflow: hidden; border: 1px solid var(--line); }
.progress i { display: block; height: 100%; background: var(--good); }
.summary { display: flex; flex-wrap: wrap; gap: 6px 16px; align-items: center; margin: 8px 0 0; color: var(--muted); }
.summary b { color: var(--ink); }
.warn { margin: 8px 0 0; padding: 8px 12px; border-radius: 8px; background: color-mix(in srgb, var(--warn) 14%, var(--card)); border: 1px solid var(--warn); font-size: .9rem; }

/* Tasks */
.tasks { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.task { display: flex; gap: 10px; align-items: flex-start; padding: 10px; border: 1px solid var(--line); border-left: 4px solid var(--minor);
  border-radius: 10px; background: var(--card); }
.task.major { border-left-color: var(--major); }
.task.done { opacity: .75; }
.task.done .title { text-decoration: line-through; }
.task.missed { background: color-mix(in srgb, var(--bad) 7%, var(--card)); }
.task.overdue { border-color: var(--warn); border-left-color: var(--warn); }
.mark { display: flex; gap: 4px; }
.ck { width: 32px; height: 32px; border-radius: 50%; border: 2px solid var(--line); background: var(--card); cursor: pointer; font-weight: 700; line-height: 1; }
.ck:hover { border-color: var(--good); color: var(--good); }
.ck.x:hover { border-color: var(--bad); color: var(--bad); }
.task.done .ck:not(.x) { background: var(--good); border-color: var(--good); color: #fff; }
.task.missed .ck.x { background: var(--bad); border-color: var(--bad); color: #fff; }
.body { flex: 1; min-width: 0; }
.title { font-weight: 600; word-break: break-word; }
.meta { display: flex; flex-wrap: wrap; gap: 4px 8px; font-size: .8rem; color: var(--muted); margin-top: 2px; }
.tag { padding: 0 7px; border-radius: 99px; border: 1px solid var(--line); font-weight: 600; }
.tag.major { color: var(--major); border-color: var(--major); }
.tag.minor { color: var(--minor); border-color: var(--minor); }
.tag.warn { color: var(--warn); border-color: var(--warn); }
.why, .note { font-size: .85rem; margin-top: 4px; }
.why { color: var(--bad); }
.note { color: var(--muted); }
.acts { display: flex; gap: 2px; }
.acts button { border: 0; background: transparent; cursor: pointer; padding: 4px 6px; border-radius: 6px; color: var(--muted); }
.acts button:hover { background: var(--bg); color: var(--ink); }
.compact .task { padding: 6px 8px; }

/* Week */
.weekgrid { display: grid; gap: 10px; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }
.daycard { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 10px; }
.daycard.today { border-color: var(--accent); }
.daycard > button.dayhead { all: unset; display: flex; justify-content: space-between; width: 100%; cursor: pointer; font-weight: 700; margin-bottom: 6px; }
.daycard .progress { margin-bottom: 8px; }

/* Month calendar */
.cal { display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px; }
.cal .dow { text-align: center; color: var(--muted); font-size: .8rem; font-weight: 600; }
.cell { min-height: 64px; border: 1px solid var(--line); border-radius: 10px; padding: 6px; text-align: left; background: var(--card); cursor: pointer; display: flex; flex-direction: column; justify-content: space-between; }
.cell:hover { border-color: var(--accent); }
.cell.today { outline: 2px solid var(--accent); }
.cell.blank { border: 0; background: transparent; cursor: default; }
.cell small { color: var(--muted); }
.cell .n { font-weight: 700; }
.cal.mini .cell { min-height: 40px; }

/* Year */
.yeargrid { display: grid; gap: 10px; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.mcard { all: unset; box-sizing: border-box; cursor: pointer; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px; display: grid; gap: 6px; }
.mcard:hover { border-color: var(--accent); }
.mcard.current { border-color: var(--accent); }
.mcard b { font-size: 1rem; }

/* Report */
.kpis { display: grid; gap: 10px; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
.kpi { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px; }
.kpi .v { font-size: 1.7rem; font-weight: 800; line-height: 1.1; }
.kpi .l { font-weight: 600; }
.kpi .d { color: var(--muted); font-size: .8rem; }
.kpi.hero { border-color: var(--accent); }
.delta.up { color: var(--good); } .delta.down { color: var(--bad); }
.bar { display: grid; grid-template-columns: 90px 1fr 80px; gap: 8px; align-items: center; margin: 5px 0; font-size: .9rem; }
.bar .track { height: 12px; background: var(--bg); border-radius: 99px; overflow: hidden; border: 1px solid var(--line); }
.bar .track i { display: block; height: 100%; background: var(--accent); }
.bar.bad .track i { background: var(--bad); }
.bar .br { color: var(--muted); text-align: right; }
.insights { margin: 0; padding-left: 18px; display: grid; gap: 8px; }
.insights li::marker { color: var(--accent); }
.legend { display: flex; gap: 6px; align-items: center; color: var(--muted); font-size: .8rem; margin-top: 8px; }
.legend i { width: 18px; height: 10px; border-radius: 3px; display: inline-block; }
.reportbar { display: flex; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }

/* Dialogs */
dialog { border: 1px solid var(--line); border-radius: 14px; padding: 0; width: min(520px, calc(100vw - 24px)); background: var(--card); color: var(--ink); }
dialog::backdrop { background: rgba(10, 14, 22, .5); }
.form { display: grid; gap: 12px; padding: 18px; }
.form label { display: grid; gap: 4px; font-weight: 600; font-size: .9rem; }
.form .row { display: grid; gap: 10px; grid-template-columns: 1fr 1fr; }
.form .check { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.form .check input[type="checkbox"] { width: auto; }
.form .check input[type="date"] { width: auto; }
.form hr { border: 0; border-top: 1px solid var(--line); width: 100%; margin: 4px 0; }
.form .hint { margin: -4px 0 0; color: var(--muted); font-size: .8rem; }
fieldset.seg { border: 0; padding: 0; margin: 0; display: flex; gap: 14px; align-items: center; }
fieldset.seg legend { float: left; font-weight: 600; font-size: .9rem; margin-right: 10px; padding: 0; }
fieldset.seg label { display: flex; align-items: center; gap: 6px; font-weight: 500; }
fieldset.seg input { width: auto; }
menu { display: flex; justify-content: flex-end; gap: 8px; padding: 0; margin: 4px 0 0; flex-wrap: wrap; }

#toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); background: var(--ink); color: var(--bg); padding: 10px 16px;
  border-radius: 10px; opacity: 0; pointer-events: none; transition: opacity .2s; z-index: 20; max-width: 90vw; }
#toast.show { opacity: 1; }

@media (max-width: 640px) {
  .form .row { grid-template-columns: 1fr; }
  .bar { grid-template-columns: 70px 1fr 64px; }
  .cell { min-height: 54px; padding: 4px; }
  #tabs { order: 3; width: 100%; flex-basis: 100%; }
  #tabs button { flex: 1; padding: 8px 4px; }
}
@media print {
  .top, .navbar, footer, .reportbar, #banner, .tools { display: none !important; }
  body { background: #fff; color: #000; }
  .panel, .kpi { box-shadow: none; break-inside: avoid; }
}