:root {
  color-scheme: light;
  --bg: #f6f5f2;
  --surface: #ffffff;
  --surface-2: #efeee9;
  --border: #dedcd4;
  --text: #1b1d1c;
  --text-2: #55585a;
  --muted: #7d8083;
  --brand: #1f3a37;
  --accent: #2f7d6d;
  --accent-ink: #ffffff;
  --series-1: #2a78d6;
  --series-2: #eb6834;
  --good: #1f8a4c;
  --good-bg: #e5f4ea;
  --warn: #9a6400;
  --warn-bg: #fdf1d8;
  --crit: #c0362c;
  --crit-bg: #fbe5e2;
  --info: #2a5f9e;
  --info-bg: #e5eef9;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.06);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #141615;
    --surface: #1d201f;
    --surface-2: #262a28;
    --border: #343937;
    --text: #eceeec;
    --text-2: #b9bebb;
    --muted: #8e9592;
    --brand: #0f1f1d;
    --accent: #4fb39d;
    --accent-ink: #0d1a17;
    --series-1: #3987e5;
    --series-2: #d95926;
    --good: #5cc98a;
    --good-bg: #17301f;
    --warn: #e8b04a;
    --warn-bg: #352a12;
    --crit: #f07b70;
    --crit-bg: #3a1c19;
    --info: #86b4ee;
    --info-bg: #182638;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--accent); }
h1, h2, h3 { line-height: 1.25; margin: 0 0 0.5rem; }
h1 { font-size: 1.35rem; }
h2 { font-size: 1.1rem; }
h3 { font-size: 1rem; }
p { margin: 0.25rem 0 0.75rem; }
small, .muted { color: var(--muted); }
.num { font-variant-numeric: tabular-nums; }

header.top {
  background: var(--brand);
  color: #fff;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  position: sticky;
  top: 0;
  z-index: 10;
}
header.top a.home { color: #fff; text-decoration: none; font-weight: 600; }
header.top .spacer { flex: 1; }
header.top button { background: transparent; border: 1px solid rgba(255,255,255,0.35); color: #fff; }

nav.tabs {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  padding: 8px 16px 0;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  scrollbar-width: none;
}
nav.tabs a {
  white-space: nowrap;
  padding: 8px 12px;
  text-decoration: none;
  color: var(--text-2);
  border-bottom: 2px solid transparent;
}
nav.tabs a.active { color: var(--text); border-bottom-color: var(--accent); font-weight: 600; }

main { max-width: 1100px; margin: 0 auto; padding: 16px; }

.grid { display: grid; gap: 12px; }
.grid.cols-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid.cols-4 { grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  box-shadow: var(--shadow);
  min-width: 0;
}
.card + .card { margin-top: 0; }
.section { margin-top: 16px; }

.stat .label { color: var(--text-2); font-size: 0.85rem; }
.stat .value { font-size: 1.6rem; font-weight: 650; font-variant-numeric: tabular-nums; }
.stat .sub { color: var(--muted); font-size: 0.85rem; }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.8rem;
  padding: 2px 8px;
  border-radius: 999px;
  font-weight: 600;
  background: var(--surface-2);
  color: var(--text-2);
}
.badge.dobro, .badge.green { background: var(--good-bg); color: var(--good); }
.badge.paznja, .badge.yellow { background: var(--warn-bg); color: var(--warn); }
.badge.crveno, .badge.red { background: var(--crit-bg); color: var(--crit); }
.badge.info { background: var(--info-bg); color: var(--info); }

.recs { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.recs li {
  border-left: 4px solid var(--border);
  background: var(--surface);
  border-radius: 6px;
  padding: 10px 12px;
  border-top: 1px solid var(--border);
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.recs li.crveno { border-left-color: var(--crit); }
.recs li.paznja { border-left-color: var(--warn); }
.recs li.info { border-left-color: var(--info); }
.recs li.dobro { border-left-color: var(--good); }
.recs .area { font-weight: 600; margin-right: 6px; }

.tiles { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.tile {
  display: block;
  padding: 20px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
  text-decoration: none;
  color: var(--text);
}
.tile strong { display: block; font-size: 1.1rem; }
.tile.planned { opacity: 0.6; pointer-events: none; }

button, .button {
  font: inherit;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  padding: 8px 14px;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  min-height: 40px;
}
button.primary, .button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); font-weight: 600; }
button.small { padding: 4px 10px; min-height: 32px; font-size: 0.85rem; }
button.link { border: none; background: none; color: var(--accent); padding: 0; min-height: 0; }
button:disabled { opacity: 0.5; cursor: default; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }

form.stack, .stack { display: grid; gap: 10px; }
.stack > *, .grid > * { min-width: 0; }
.fields { display: grid; gap: 10px; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
label { display: grid; gap: 4px; font-size: 0.88rem; color: var(--text-2); }
label.check { display: flex; align-items: center; gap: 8px; color: var(--text); }
input, select, textarea {
  font: inherit;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  min-height: 40px;
  width: 100%;
}
input[type="checkbox"] { width: auto; min-height: 0; }
textarea { min-height: 70px; }

table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th, td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--text-2); font-weight: 600; }
td.num, th.num { text-align: right; }
.table-wrap { overflow-x: auto; }

.session { border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.session > summary { padding: 12px 14px; cursor: pointer; display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.session > .body { padding: 0 14px 14px; }
.ex { display: grid; grid-template-columns: 1fr auto; gap: 2px 12px; padding: 8px 0; border-top: 1px solid var(--border); }
.ex .name { font-weight: 600; }
.ex .rx { text-align: right; font-variant-numeric: tabular-nums; }
.ex .cue { grid-column: 1 / -1; color: var(--muted); font-size: 0.85rem; }
.ex .load { color: var(--accent); font-weight: 600; }

.week-strip { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 8px; }
.week-strip .day { border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; background: var(--surface); }
.week-strip .day.done { border-color: var(--good); background: var(--good-bg); }
.week-strip .day.today { outline: 2px solid var(--accent); }

.phases { display: grid; grid-template-columns: repeat(5, 1fr); gap: 4px; }
.phases .ph { padding: 6px 8px; border-radius: 6px; background: var(--surface-2); font-size: 0.8rem; }
.phases .ph.now { background: var(--accent); color: var(--accent-ink); }

.set-row { display: grid; grid-template-columns: 34px 1fr 1fr 1fr; gap: 6px; align-items: center; margin-top: 4px; }

.chart { position: relative; }
.chart svg { display: block; width: 100%; height: auto; overflow: visible; }
.chart .grid-line { stroke: var(--border); stroke-width: 1; }
.chart .axis-text { fill: var(--muted); font-size: 11px; }
.chart .ref { stroke: var(--muted); stroke-dasharray: 4 4; stroke-width: 1; }
.chart .ref-text { fill: var(--muted); font-size: 11px; }
.chart .series { fill: none; stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.chart .dot { stroke: var(--surface); stroke-width: 2; }
.chart .label { font-size: 12px; fill: var(--text-2); }
.chart .crosshair { stroke: var(--text-2); stroke-width: 1; }
.chart .tip {
  position: absolute;
  pointer-events: none;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 8px;
  font-size: 0.82rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  white-space: nowrap;
  color: var(--text);
}
.legend { display: flex; gap: 14px; font-size: 0.85rem; color: var(--text-2); margin-bottom: 4px; }
.legend i { display: inline-block; width: 12px; height: 3px; border-radius: 2px; vertical-align: middle; margin-right: 5px; }

.toast {
  position: fixed;
  left: 50%;
  bottom: 20px;
  transform: translateX(-50%);
  background: var(--text);
  color: var(--bg);
  padding: 10px 16px;
  border-radius: 8px;
  z-index: 50;
  max-width: calc(100% - 32px);
}
.toast.error { background: var(--crit); color: #fff; }

dialog { border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); color: var(--text); width: min(560px, calc(100% - 32px)); padding: 16px; }
dialog::backdrop { background: rgba(0, 0, 0, 0.45); }

.notice { background: var(--info-bg); color: var(--text); border-radius: 8px; padding: 10px 12px; font-size: 0.9rem; }
.empty { color: var(--muted); padding: 12px 0; }
.progress { height: 8px; background: var(--surface-2); border-radius: 999px; overflow: hidden; }
.progress > span { display: block; height: 100%; background: var(--accent); border-radius: 999px; }

.print-only { display: none; }
@media print {
  header.top, nav.tabs, .no-print, button { display: none !important; }
  .print-only { display: block; }
  body { background: #fff; color: #000; }
  .card { border: none; box-shadow: none; }
}

@media (max-width: 600px) {
  main { padding: 12px 16px; }
  .stat .value { font-size: 1.35rem; }
  .phases { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .phases .ph span { display: none; }
}