:root {
  --bg: #f4f6f8; --panel: #fff; --text: #1e293b; --muted: #64748b; --border: #e2e8f0;
  --accent: #0f766e; --accent-hover: #115e59; --danger: #dc2626; --warn-bg: #fffbeb; --warn-line: #f59e0b;
  --today: #ccfbf1; --wknd: #f1f5f9; --radius: 10px; --label-w: 13rem; --row-h: 2.25rem; --col-min: 2.1rem;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--text); background: var(--bg);
}
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; }
a { color: var(--accent); }
h1 { font-size: 1.35rem; margin: 0; }
h2 { font-size: 1.05rem; margin: 0 0 .6rem; }
main { padding: 1rem clamp(.75rem, 2vw, 1.5rem) 3rem; max-width: 1600px; margin: 0 auto; }
main.narrow { max-width: 640px; }
main.narrow > h1 { margin-bottom: .8rem; }
code { background: #f1f5f9; padding: 0 .25rem; border-radius: 4px; font-size: .85em; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.hidden { display: none !important; }
.offscreen { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* Top bar */
.topbar { display: flex; align-items: center; gap: 1rem; padding: .55rem clamp(.75rem, 2vw, 1.5rem);
  background: var(--accent); color: #fff; position: sticky; top: 0; z-index: 20; }
.brand { color: #fff; font-weight: 700; text-decoration: none; white-space: nowrap; }
.nav { display: flex; gap: .15rem; overflow-x: auto; flex: 1; scrollbar-width: none; }
.nav a { color: #d1fae5; text-decoration: none; padding: .4rem .65rem; border-radius: 8px; white-space: nowrap; font-size: .95rem; }
.nav a:hover { background: rgba(255,255,255,.12); color: #fff; }
.nav a.on { background: rgba(255,255,255,.2); color: #fff; font-weight: 600; }
.topbar .add { background: #fff; color: var(--accent); white-space: nowrap; }
.topbar .add:hover { background: #ecfdf5; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .3rem; padding: .5rem .9rem;
  border-radius: 8px; border: 1px solid var(--border); background: var(--panel); color: var(--text);
  font: inherit; font-size: .95rem; text-decoration: none; cursor: pointer; min-height: 2.4rem; }
.btn:hover { border-color: #cbd5e1; background: #f8fafc; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
.btn.primary:hover { background: var(--accent-hover); }
.btn.ghost { background: transparent; }
.btn.warn { background: var(--warn-line); border-color: var(--warn-line); color: #fff; font-weight: 600; }
.btn.danger { color: var(--danger); border-color: #fecaca; background: #fff; }
.btn.danger:hover { background: #fef2f2; }
.btn.small { padding: .25rem .6rem; min-height: 2rem; font-size: .85rem; }
.btn.icon { width: 2.4rem; padding: 0; font-size: 1.3rem; }
.btn.wide { width: 100%; }

/* Layout bits */
.toolbar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .6rem 1rem; margin-bottom: .8rem; }
.month-nav { display: flex; align-items: center; gap: .4rem; }
.month-nav h1 { min-width: 9.5rem; text-align: center; }
.hint { margin: 0 0 .6rem; color: var(--muted); font-size: .88rem; }
.toolbar .hint { margin: 0; }
.key { display: inline-block; width: .9rem; height: .9rem; vertical-align: -2px; border-radius: 3px; margin-left: .5rem; }
.key.over, .b-cell.over { background: repeating-linear-gradient(45deg, #fee2e2 0 5px, #fecaca 5px 10px); }
.filter { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem; margin-bottom: 1rem; }
.card.empty { color: var(--muted); }
.card.info > div { margin: .2rem 0; }
.card.info .muted { display: inline-block; min-width: 6rem; }
.card.info .notes { white-space: pre-wrap; margin-top: .5rem; }
.actions { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; }
.danger-zone { margin-top: .5rem; text-align: right; }
.badge { font-size: .75rem; background: #e2e8f0; color: var(--muted); padding: .1rem .45rem; border-radius: 999px; font-weight: 500; vertical-align: middle; }

.flash { padding: .65rem .9rem; border-radius: 8px; margin-bottom: .8rem; background: #ecfdf5; border: 1px solid #a7f3d0; }
.flash.error { background: #fef2f2; border-color: #fecaca; }
.flash.warn { background: var(--warn-bg); border-color: #fde68a; }
.alert { padding: .75rem .9rem; border-radius: 8px; margin-bottom: .8rem; }
.alert.warn { background: var(--warn-bg); border: 1px solid #fcd34d; border-left: 4px solid var(--warn-line); }
.alert.error { background: #fef2f2; border: 1px solid #fecaca; border-left: 4px solid var(--danger); }
.alert.ok-check { background: #f0fdf4; border: 1px solid #bbf7d0; color: #166534; padding: .5rem .9rem; }
.alert ul { margin: .4rem 0 .5rem; padding-left: 1.2rem; }
.alert li { margin: .2rem 0; }

/* Forms */
.form label { display: block; font-size: .88rem; font-weight: 600; color: #334155; margin-bottom: .8rem; }
.form label.check, label.check { display: flex; align-items: center; gap: .45rem; font-weight: 500; }
input, select, textarea { font: inherit; font-size: 1rem; }
.form input:not([type=checkbox]):not([type=color]), .form select, .form textarea,
.filter input[type=search], .filter input[type=date], .filter select {
  display: block; width: 100%; margin-top: .3rem; padding: .55rem .65rem; border: 1px solid #cbd5e1;
  border-radius: 8px; background: #fff; color: var(--text); }
.filter input, .filter select { width: auto; margin-top: 0; }
.filter label { display: flex; align-items: center; gap: .4rem; font-size: .9rem; }
.form input[type=color] { display: block; margin-top: .3rem; width: 4rem; height: 2.5rem; border: 1px solid #cbd5e1; border-radius: 8px; padding: .15rem; background: #fff; }
.form input:focus, .form select:focus, .form textarea:focus { outline: 2px solid #99f6e4; border-color: var(--accent); }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 0 .8rem; }
fieldset.subtle { border: 1px dashed #cbd5e1; border-radius: 8px; padding: .8rem .8rem 0; margin: -.3rem 0 .9rem; }
fieldset.subtle legend { font-size: .88rem; font-weight: 600; color: #334155; padding: 0 .3rem; }
.quick { display: flex; flex-wrap: wrap; align-items: center; gap: .4rem; margin: -.3rem 0 .9rem; font-size: .88rem; color: var(--muted); }
.login { margin-top: 12vh; }
.login h1 { margin-bottom: 1rem; }
form.inline { display: inline; margin-left: .5rem; }
.plain-list { list-style: none; padding: 0; margin: 0 0 1rem; }
.plain-list li { padding: .35rem 0; border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: .3rem; }

/* Board (departments x days) */
.board-wrap { overflow-x: auto; background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); }
.board { display: grid; grid-auto-rows: var(--row-h); min-width: max-content; position: relative; }
.b-corner, .b-head { font-size: .75rem; color: var(--muted); border-bottom: 1px solid var(--border); background: var(--panel); }
.b-corner { position: sticky; left: 0; z-index: 6; display: flex; align-items: center; padding: 0 .7rem; font-weight: 600; border-right: 1px solid var(--border); }
.b-head { display: flex; flex-direction: column; align-items: center; justify-content: center; line-height: 1.05; border-right: 1px solid #f1f5f9; }
.b-head b { color: var(--text); font-size: .85rem; }
.b-head.wknd { background: var(--wknd); }
.b-head.today { background: var(--accent); color: #ccfbf1; }
.b-head.today b { color: #fff; }
.b-label { position: sticky; left: 0; z-index: 5; display: flex; align-items: center; gap: .45rem; padding: 0 .7rem;
  background: var(--panel); border-right: 1px solid var(--border); border-bottom: 1px solid var(--border);
  font-size: .88rem; font-weight: 600; color: var(--text); text-decoration: none; overflow: hidden; white-space: nowrap; }
.b-label .full { overflow: hidden; text-overflow: ellipsis; }
.b-label small { color: var(--muted); font-weight: 500; }
.b-label .abbr { display: none; }
.dot { width: .7rem; height: .7rem; border-radius: 50%; background: var(--c); flex: none; display: inline-block; }
.b-cell { border-right: 1px solid #f1f5f9; border-bottom: 1px solid var(--border); }
.b-cell.wknd { background: var(--wknd); }
.b-cell.today { background: var(--today); }
.b-cell:hover { background: #e0f2fe; }
.b-cell.over { box-shadow: inset 0 0 0 1px #fca5a5; }
.bar, .cbar { position: relative; z-index: 2; display: block; background: var(--c); color: #fff; text-decoration: none;
  border-radius: 6px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; font-weight: 600; }
.bar { margin: 4px 2px; padding: 0 .45rem; font-size: .8rem; line-height: calc(var(--row-h) - 8px); overflow: clip; }
/* Keep a bar's name visible when the bar starts off-screen behind the sticky department column. */
.bar .lbl { position: sticky; left: calc(var(--label-w) + .45rem); display: inline-block; max-width: 100%; }
.bar:hover, .cbar:hover { filter: brightness(1.1); }
.bar.cl, .cbar.cl { border-top-left-radius: 0; border-bottom-left-radius: 0; margin-left: 0; }
.bar.cr, .cbar.cr { border-top-right-radius: 0; border-bottom-right-radius: 0; margin-right: 0; }
.bar.conflict, .cbar.conflict { box-shadow: 0 0 0 2px #fff, 0 0 0 4px var(--danger); }

/* Month calendar */
.cal { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.cal-dow { display: grid; grid-template-columns: repeat(7, 1fr); font-size: .78rem; color: var(--muted); font-weight: 600; border-bottom: 1px solid var(--border); }
.cal-dow div { padding: .4rem .5rem; }
.cal-week { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); min-height: 6.5rem; border-bottom: 1px solid var(--border); }
.cal-week:last-child { border-bottom: 0; }
.cal-day { border-right: 1px solid #f1f5f9; text-decoration: none; color: var(--text); padding: .25rem .4rem; }
.cal-day:nth-child(7) { border-right: 0; }
.cal-day.wknd { background: #fafbfc; }
.cal-day.other { background: #f8fafc; color: #94a3b8; }
.cal-day:hover { background: #f0fdfa; }
.cal-day .num { font-size: .82rem; font-weight: 600; }
.cal-day.today .num { background: var(--accent); color: #fff; border-radius: 999px; padding: .1rem .45rem; }
.cbar { margin: 2px 3px; padding: 0 .4rem; font-size: .76rem; line-height: 1.4rem; font-weight: 500; }
.cbar b { font-weight: 700; }
.legend { display: flex; flex-wrap: wrap; gap: .4rem .9rem; margin-top: .8rem; font-size: .82rem; color: var(--muted); }
.chip { display: inline-flex; align-items: center; gap: .35rem; }
.chips { display: flex; flex-wrap: wrap; gap: .5rem; }
.chips .chip { padding: .35rem .7rem; border: 1px solid var(--border); border-radius: 999px; text-decoration: none; color: var(--text); font-size: .9rem; }
.chips .chip:hover { border-color: var(--c); }
.chips .chip.done { background: #f8fafc; color: var(--muted); }

/* Cards list */
.week-head { margin: 1.2rem 0 .5rem; font-size: .95rem; color: var(--muted); }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(18rem, 1fr)); gap: .6rem; margin-bottom: .5rem; }
.rot-card { display: block; background: var(--panel); border: 1px solid var(--border); border-left: 5px solid var(--c);
  border-radius: var(--radius); padding: .7rem .85rem; text-decoration: none; color: var(--text); }
.rot-card:hover { border-color: #cbd5e1; border-left-color: var(--c); }
.rot-card.conflict { border-color: #fca5a5; border-left-color: var(--danger); background: #fffafa; }
.rot-card.past { opacity: .6; }
.rc-top { display: flex; align-items: center; gap: .45rem; flex-wrap: wrap; }
.rc-top .muted { margin-left: auto; font-size: .88rem; }
.rc-name { margin-top: .3rem; font-size: 1.02rem; }
.rc-notes { margin-top: .3rem; font-size: .88rem; color: var(--muted); white-space: pre-wrap; }
.rc-warn { margin-top: .35rem; font-size: .85rem; color: #b45309; }

/* Tables */
.table-wrap { padding: 0; overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; font-size: .95rem; }
.table th { text-align: left; font-size: .78rem; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); font-weight: 600; }
.table th, .table td { padding: .6rem .9rem; border-bottom: 1px solid var(--border); }
.table tr:last-child td { border-bottom: 0; }
.table tr.inactive td { color: #94a3b8; }

/* Phones */
@media (max-width: 760px) {
  :root { --label-w: 4.6rem; --row-h: 2.4rem; --col-min: 2.6rem; }
  .topbar { flex-wrap: wrap; gap: .4rem .6rem; padding-bottom: .35rem; }
  .brand { flex: 1; font-size: .98rem; }
  .nav { order: 3; flex-basis: 100%; margin: 0 -.3rem; }
  .topbar .add { padding: .35rem .75rem; min-height: 2.1rem; }
  .b-label .full { display: none; }
  .b-label .abbr { display: inline; font-size: .78rem; }
  .b-label { padding: 0 .4rem; gap: .3rem; }
  .b-label .dot { width: .55rem; height: .55rem; }
  .b-corner { font-size: 0; }
  .month-nav h1 { font-size: 1.15rem; min-width: 8.5rem; }
  .cal-week { min-height: 5rem; }
  .cal-dow div { padding: .35rem .25rem; text-align: center; }
  .cal-day { padding: .2rem; text-align: center; }
  .cbar { font-size: .68rem; padding: 0 .25rem; margin: 2px 1px; }
  .row { grid-template-columns: 1fr; }
  .cards { grid-template-columns: 1fr; }
  .table th:nth-child(4), .table td:nth-child(4) { display: none; }
}