:root {
  --bg: #f4f6fa;
  --panel: #ffffff;
  --panel-2: #eef1f7;
  --text: #16203a;
  --muted: #5d6784;
  --line: #dde2ec;
  --accent: #1d4ed8;
  --accent-text: #ffffff;
  --accent-soft: #e0e9ff;
  --danger: #c62828;
  --warn: #b45309;
  --ok: #15803d;
  --radius: 10px;
  --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 {
    --bg: #0c1222;
    --panel: #141c30;
    --panel-2: #1b2540;
    --text: #e6eaf5;
    --muted: #97a1bd;
    --line: #283353;
    --accent: #5b8cff;
    --accent-text: #0c1222;
    --accent-soft: #1f2f5c;
    --danger: #ff6b6b;
    --warn: #f5a524;
    --ok: #4ade80;
    --shadow: none;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 15px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
h1, h2, h3 { margin: 0; line-height: 1.2; }
h1 { font-size: 22px; }
h2 { font-size: 18px; }
a { color: var(--accent); }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.error { color: var(--danger); margin: 0; }
.spacer { flex: 1; }
.boot { padding: 40px; text-align: center; color: var(--muted); }

/* Controls */
input, select, textarea {
  font: inherit;
  color: inherit;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 10px;
  width: 100%;
}
textarea { min-height: 90px; resize: vertical; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
input[type="checkbox"] { width: auto; }
label { display: grid; gap: 4px; font-size: 13px; font-weight: 600; color: var(--muted); }
label.check { display: flex; align-items: center; gap: 8px; font-weight: 500; color: var(--text); }

.btn {
  font: inherit;
  font-weight: 600;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text);
  border-radius: 8px;
  padding: 8px 14px;
  cursor: pointer;
  white-space: nowrap;
}
.btn:hover { background: var(--panel-2); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.btn.primary:hover { filter: brightness(1.08); }
.btn.danger { color: var(--danger); }
.btn.ghost { border-color: transparent; background: transparent; }
.btn.ghost:hover { background: var(--panel-2); }
.btn.wide { width: 100%; }
.btn.sm { padding: 4px 10px; font-size: 13px; }

/* Brand */
.brand { font-weight: 700; font-size: 16px; white-space: nowrap; }
.brand-mark { background: var(--accent); color: var(--accent-text); border-radius: 6px; padding: 2px 6px; margin-right: 2px; }
.brand-sub { color: var(--muted); font-weight: 600; }
.brand-lg { font-size: 22px; }

/* Login */
.login { min-height: 100vh; display: grid; place-items: center; padding: 24px 16px; }
.login-card {
  width: 100%; max-width: 380px; display: grid; gap: 14px;
  background: var(--panel); border: 1px solid var(--line); border-radius: 14px;
  padding: 28px; box-shadow: var(--shadow);
}
.login-card p { margin: 0; }

/* Top bar */
.topbar {
  display: flex; align-items: center; gap: 20px; flex-wrap: wrap;
  padding: 10px 20px; background: var(--panel); border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 5;
}
.tabs { display: flex; gap: 4px; }
.tabs a { text-decoration: none; color: var(--muted); font-weight: 600; padding: 8px 12px; border-radius: 8px; }
.tabs a:hover { background: var(--panel-2); }
.tabs a.active { color: var(--accent); background: var(--accent-soft); }
.account { margin-left: auto; display: flex; align-items: center; gap: 4px; }

.page { max-width: 1200px; margin: 0 auto; padding: 20px 16px 60px; }
.toolbar { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 16px; }
.toolbar .grow { flex: 1 1 260px; }
.toolbar select { width: auto; }

/* Tasks */
.board { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; align-items: start; }
.column { background: var(--panel-2); border-radius: var(--radius); padding: 10px; min-height: 120px; }
.column h3 { font-size: 14px; display: flex; justify-content: space-between; padding: 4px 4px 10px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.cards { display: grid; gap: 8px; }
.card {
  background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px;
  box-shadow: var(--shadow); cursor: pointer; display: grid; gap: 6px; text-align: left; font: inherit; color: inherit;
}
.card:hover { border-color: var(--accent); }
.card-title { font-weight: 600; overflow-wrap: anywhere; }
.card.done .card-title { text-decoration: line-through; color: var(--muted); }
.meta { display: flex; flex-wrap: wrap; gap: 6px; font-size: 12px; color: var(--muted); align-items: center; }
.chip { background: var(--panel-2); border-radius: 999px; padding: 1px 8px; }
.chip.high { background: color-mix(in srgb, var(--danger) 16%, transparent); color: var(--danger); font-weight: 600; }
.chip.low { opacity: .8; }
.overdue { color: var(--danger); font-weight: 600; }
.empty { color: var(--muted); font-size: 13px; padding: 8px 4px; }

/* Calendar */
.cal-head { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
.cal-head h1 { min-width: 190px; }
.cal-wrap { overflow-x: auto; }
.cal { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--line); gap: 1px; min-width: 640px; }
.cal-dow { background: var(--panel-2); font-size: 12px; font-weight: 700; color: var(--muted); padding: 6px 8px; text-transform: uppercase; }
.cal-day { background: var(--panel); min-height: 108px; padding: 4px; display: flex; flex-direction: column; gap: 3px; cursor: pointer; }
.cal-day:hover { background: var(--panel-2); }
.cal-day.other { background: color-mix(in srgb, var(--panel) 60%, var(--bg)); }
.cal-day.other .cal-num { opacity: .45; }
.cal-num { font-size: 13px; font-weight: 600; padding: 2px 4px; align-self: flex-start; border-radius: 999px; }
.cal-day.today .cal-num { background: var(--accent); color: var(--accent-text); }
.ev {
  font: inherit; font-size: 12px; text-align: left; border: 0; border-radius: 5px; padding: 2px 6px; cursor: pointer;
  background: var(--accent-soft); color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.ev.allday { background: var(--accent); color: var(--accent-text); }
.ev:hover { filter: brightness(.95); }
.ev-time { font-weight: 700; margin-right: 4px; }

.upcoming { margin-top: 28px; }
.upcoming h2 { margin-bottom: 10px; }
.list { display: grid; gap: 8px; }
.list-item {
  display: grid; grid-template-columns: 110px 1fr; gap: 12px; align-items: start;
  background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; cursor: pointer; text-align: left; font: inherit; color: inherit;
}
.list-item:hover { border-color: var(--accent); }
.list-date { font-weight: 700; }

/* Team */
.table-wrap { overflow-x: auto; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); white-space: nowrap; }
th { font-size: 12px; text-transform: uppercase; color: var(--muted); background: var(--panel-2); }
tr:last-child td { border-bottom: 0; }
.status-off { color: var(--muted); }
.section { margin-top: 28px; }
.section h2 { margin-bottom: 10px; }
.inline-form { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 10px; align-items: end; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; }

/* Dialog */
dialog {
  border: 1px solid var(--line); border-radius: 14px; padding: 0; width: min(560px, calc(100vw - 32px));
  background: var(--panel); color: var(--text); box-shadow: 0 20px 50px rgba(0, 0, 0, .25);
}
dialog::backdrop { background: rgba(8, 12, 24, .5); }
dialog form { padding: 20px; display: grid; gap: 14px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-grid .full { grid-column: 1 / -1; }
.dialog-actions { display: flex; gap: 8px; align-items: center; }

.toast {
  position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); z-index: 50;
  background: var(--text); color: var(--bg); padding: 10px 16px; border-radius: 8px; font-weight: 600; max-width: calc(100vw - 32px);
}

@media (max-width: 760px) {
  .topbar { padding: 8px 16px; gap: 8px; }
  .account { margin-left: 0; width: 100%; justify-content: flex-end; }
  #me-name { margin-right: auto; }
  .board { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .list-item { grid-template-columns: 1fr; gap: 2px; }
}