:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --surface-2: #eef0f4;
  --text: #1b1f27;
  --muted: #667085;
  --border: #d9dde5;
  --accent: #2563eb;
  --accent-text: #ffffff;
  --danger: #c62828;
  --ok: #2e7d32;
  --warn: #b26a00;
  --holiday: #fdecea;
  --off: #f0f1f4;
  --today: #2563eb;
  --shadow: 0 1px 3px rgba(16, 24, 40, .12);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #12151b; --surface: #1b2029; --surface-2: #252b37; --text: #e8eaf0; --muted: #98a2b3;
    --border: #333b4a; --accent: #5b8cff; --accent-text: #0b1020; --danger: #ff7b72; --ok: #6fcf7a; --warn: #f0b54a;
    --holiday: #3a2326; --off: #181c24; --today: #5b8cff; --shadow: none;
  }
}
:root[data-theme="dark"] {
  --bg: #12151b; --surface: #1b2029; --surface-2: #252b37; --text: #e8eaf0; --muted: #98a2b3;
  --border: #333b4a; --accent: #5b8cff; --accent-text: #0b1020; --danger: #ff7b72; --ok: #6fcf7a; --warn: #f0b54a;
  --holiday: #3a2326; --off: #181c24; --today: #5b8cff; --shadow: none;
}

* { box-sizing: border-box; }
html { color-scheme: light dark; }
:root[data-theme="light"] { color-scheme: light; }
:root[data-theme="dark"] { color-scheme: dark; }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
h1, h2, h3 { margin: 0 0 .5rem; line-height: 1.2; }
h2 { font-size: 1.25rem; }
h3 { font-size: 1.05rem; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.hidden { display: none !important; }

/* ---------- layout ---------- */
.topbar { background: var(--surface); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 5; }
.topbar-inner { max-width: 1100px; margin: 0 auto; padding: .5rem 1rem; display: flex; align-items: center; gap: .75rem; flex-wrap: wrap; }
.brand { font-weight: 700; font-size: 1.1rem; margin-right: auto; }
.tabs { display: flex; gap: .25rem; flex-wrap: wrap; }
.tab { border: 0; background: none; color: var(--muted); padding: .45rem .8rem; border-radius: 8px; cursor: pointer; font: inherit; }
.tab:hover { background: var(--surface-2); }
.tab[aria-current="page"] { background: var(--accent); color: var(--accent-text); }
.who { display: flex; align-items: center; gap: .5rem; }
main { max-width: 1100px; margin: 0 auto; padding: 1rem; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 1rem; box-shadow: var(--shadow); margin-bottom: 1rem; }
.row { display: flex; gap: .75rem; flex-wrap: wrap; align-items: center; }
.row.end { justify-content: flex-end; }
.grow { flex: 1; }
.stack > * + * { margin-top: .75rem; }

/* ---------- forms ---------- */
label { display: block; font-size: .85rem; color: var(--muted); margin-bottom: .2rem; }
input, select, textarea, button { font: inherit; color: inherit; }
input[type=text], input[type=email], input[type=password], input[type=date], input[type=number], select, textarea {
  width: 100%; padding: .5rem .6rem; background: var(--surface); border: 1px solid var(--border); border-radius: 8px;
}
input[type=color] { width: 2.5rem; height: 2.2rem; padding: 0; border: 1px solid var(--border); border-radius: 8px; background: none; }
textarea { min-height: 16rem; resize: vertical; font-family: inherit; }
input:focus-visible, select:focus-visible, textarea:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.btn { border: 1px solid var(--border); background: var(--surface-2); padding: .5rem .9rem; border-radius: 8px; cursor: pointer; }
.btn:hover { filter: brightness(.96); }
.btn.primary { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }
.btn.danger { color: var(--danger); }
.btn.sm { padding: .25rem .55rem; font-size: .85rem; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.dur { display: inline-flex; align-items: center; gap: .25rem; }
.dur input { width: 4rem; text-align: right; }
.field { min-width: 9rem; }
.error { color: var(--danger); }

/* ---------- auth ---------- */
.auth { max-width: 380px; margin: 8vh auto; }

/* ---------- balances ---------- */
.balances { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: .75rem; }
.bal { border: 1px solid var(--border); border-radius: 10px; padding: .6rem .75rem; background: var(--surface); }
.bal-head { display: flex; align-items: center; gap: .4rem; font-weight: 600; }
.dot { width: .8rem; height: .8rem; border-radius: 50%; flex: none; background: var(--c, var(--accent)); }
.bar { height: .5rem; background: var(--surface-2); border-radius: 99px; overflow: hidden; margin: .4rem 0 .25rem; }
.bar > span { display: block; height: 100%; background: var(--c, var(--accent)); width: var(--w, 0%); }
.neg { color: var(--danger); font-weight: 600; }

/* ---------- calendar ---------- */
.cal-head { display: flex; align-items: center; gap: .5rem; margin-bottom: .75rem; flex-wrap: wrap; }
.cal-title { font-size: 1.2rem; font-weight: 700; min-width: 10rem; text-align: center; text-transform: capitalize; }
.cal { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 4px; }
.cal-dow { text-align: center; font-size: .8rem; color: var(--muted); padding: .25rem 0; }
.day { min-height: 5.5rem; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); padding: .3rem; text-align: left; cursor: pointer; display: flex; flex-direction: column; gap: 2px; overflow: hidden; }
.day:hover { border-color: var(--accent); }
.day.blank { visibility: hidden; border: 0; }
.day.off { background: var(--off); }
.day.holiday { background: var(--holiday); }
.day.today .num { background: var(--today); color: var(--accent-text); border-radius: 99px; padding: 0 .4rem; }
.day .num { font-weight: 600; font-size: .9rem; align-self: flex-start; }
.day .sched { font-size: .7rem; color: var(--muted); }
.hol { font-size: .72rem; color: var(--danger); line-height: 1.15; overflow-wrap: anywhere; }
.chip { font-size: .72rem; border-radius: 5px; padding: 1px 4px; background: var(--c); color: #fff; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; text-shadow: 0 0 2px rgba(0,0,0,.45); }
.chip.st-refusé { opacity: .35; text-decoration: line-through; }
.chip.st-brouillon { background-image: repeating-linear-gradient(135deg, transparent 0 5px, rgba(255,255,255,.25) 5px 8px); }
.legend { display: flex; gap: 1rem; flex-wrap: wrap; font-size: .8rem; color: var(--muted); margin-top: .75rem; }

/* ---------- tables ---------- */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: .45rem .5rem; border-bottom: 1px solid var(--border); vertical-align: middle; }
th { font-size: .8rem; color: var(--muted); font-weight: 600; }
td.num, th.num { text-align: right; white-space: nowrap; }
.badge { display: inline-block; padding: 1px 8px; border-radius: 99px; font-size: .78rem; background: var(--surface-2); }
.badge.st-demandé { background: color-mix(in srgb, var(--warn) 22%, transparent); color: var(--warn); }
.badge.st-approuvé { background: color-mix(in srgb, var(--ok) 22%, transparent); color: var(--ok); }
.badge.st-refusé { background: color-mix(in srgb, var(--danger) 22%, transparent); color: var(--danger); }

/* ---------- dialog ---------- */
dialog { border: 1px solid var(--border); border-radius: 14px; padding: 0; background: var(--surface); color: var(--text); width: min(560px, calc(100vw - 1.5rem)); max-height: calc(100vh - 2rem); }
dialog::backdrop { background: rgba(0, 0, 0, .5); }
.dlg-body { padding: 1rem; }
.dlg-head { display: flex; justify-content: space-between; align-items: start; gap: 1rem; }
.leave-line { display: flex; gap: .5rem; align-items: center; flex-wrap: wrap; padding: .5rem 0; border-top: 1px solid var(--border); }
.preview { background: var(--surface-2); border-radius: 8px; padding: .5rem .75rem; }
.radios { display: flex; gap: 1rem; flex-wrap: wrap; }
.radios label { display: flex; align-items: center; gap: .35rem; color: var(--text); font-size: .95rem; margin: 0; }

#toast { position: fixed; left: 50%; bottom: 1rem; transform: translateX(-50%); background: var(--text); color: var(--bg); padding: .6rem 1rem; border-radius: 8px; opacity: 0; pointer-events: none; transition: opacity .2s; z-index: 50; max-width: calc(100vw - 2rem); }
#toast.show { opacity: 1; }
#toast.err { background: var(--danger); color: #fff; }

/* ---------- mobile ---------- */
@media (max-width: 640px) {
  main { padding: .5rem; }
  .day { min-height: 3.6rem; padding: .2rem; }
  .day .sched, .hol { display: none; }
  .day.holiday .num::after { content: " ●"; color: var(--danger); font-size: .6rem; }
  .chip { font-size: .65rem; padding: 0 2px; }
  .cal { gap: 2px; }
  .topbar-inner { padding: .4rem .5rem; }
  .tab { padding: .4rem .55rem; }
}

/* ---------- impression / PDF ---------- */
@media print {
  body { background: #fff; color: #000; }
  .topbar, .no-print, #toast, .btn { display: none !important; }
  main { max-width: none; padding: 0; }
  .card { box-shadow: none; border: 0; padding: 0; }
  input[type=checkbox] { display: none; }
  select { border: 0; appearance: none; background: none; padding: 0; }
}

.print-only { display: none; }
@media print { .print-only { display: inline-block; } }