:root {
  --bg: #f4f6f8;
  --surface: #fff;
  --soft: #fbfcfd;
  --line: #d8e0e8;
  --text: #172033;
  --muted: #64748b;
  --blue: #2f80ed;
  --green: #219653;
  --amber: #b7791f;
  --red: #c24141;
  --violet: #8f5cf7;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: Arial, Helvetica, sans-serif; letter-spacing: 0; }
button, input, select, textarea { font: inherit; }
button, .button { border: 1px solid var(--line); background: #fff; color: var(--text); border-radius: 6px; padding: 9px 12px; cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; justify-content: center; min-height: 38px; }
button:hover, .button:hover { border-color: #aab7c4; }
.primary { background: var(--blue); border-color: var(--blue); color: #fff; font-weight: 700; }
.danger { color: var(--red); }
.layout { display: flex; min-height: 100vh; }
.sidebar { width: 252px; flex: 0 0 252px; padding: 18px 14px; background: #202938; color: #fff; display: flex; flex-direction: column; gap: 8px; }
.brand { display: flex; align-items: center; gap: 12px; padding: 0 6px 22px; }
.brand-logo { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 6px; background: #f7c948; color: #172033; font-weight: 800; }
.brand span:last-child { display: block; color: #aab7c4; font-size: 12px; margin-top: 2px; }
.nav { width: 100%; justify-content: flex-start; background: transparent; color: #dbe4ee; border-color: transparent; }
.nav.is-active, .nav:hover { background: #2f3a4e; border-color: #405066; }
.account-box { margin-top: auto; border-top: 1px solid #405066; padding: 12px 8px; color: #aab7c4; display: grid; gap: 4px; }
.account-box strong { color: #fff; }
main { flex: 1; min-width: 0; padding: 20px; }
.topbar { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 16px; }
h1, h2, h3, p { margin: 0; }
h1 { font-size: 24px; line-height: 1.2; }
h2 { font-size: 17px; margin-bottom: 14px; }
h3 { font-size: 14px; margin-bottom: 6px; }
.topbar p, .hint { color: var(--muted); margin-top: 6px; line-height: 1.45; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; }
.view { display: none; }
.view.is-active { display: block; }
.filters { display: grid; grid-template-columns: repeat(5, minmax(150px, 1fr)); gap: 10px; margin-bottom: 10px; }
label { display: grid; gap: 5px; color: var(--muted); font-size: 12px; font-weight: 700; }
input, select, textarea { width: 100%; border: 1px solid var(--line); border-radius: 6px; padding: 9px 10px; background: #fff; color: var(--text); min-width: 0; }
textarea { resize: vertical; }
.week-tabs { display: flex; gap: 6px; overflow: auto; margin-bottom: 12px; }
.week-tabs button.is-active { background: #20324a; color: #fff; border-color: #20324a; }
.board { display: grid; grid-template-columns: 220px minmax(760px, 1fr); border: 1px solid var(--line); border-radius: 8px; background: var(--surface); overflow: hidden; box-shadow: 0 12px 28px rgba(25,35,50,.08); }
.board.month-mode { display: block; }
.resource-rail { border-right: 1px solid var(--line); background: var(--soft); }
.resource-row, .resource-head { height: 44px; display: flex; align-items: center; gap: 8px; padding: 0 12px; border-bottom: 1px solid var(--line); }
.resource-head { font-weight: 800; background: #eef2f6; }
.dot { width: 9px; height: 9px; border-radius: 50%; flex: 0 0 9px; display: inline-block; }
.grid { overflow: auto; display: grid; grid-template-columns: 72px repeat(var(--resource-count), minmax(160px, 1fr)); }
.grid-head, .time-cell, .slot { min-height: 44px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.grid-head { position: sticky; top: 0; z-index: 2; background: #eef2f6; padding: 12px; font-weight: 800; }
.time-cell { position: sticky; left: 0; z-index: 1; background: var(--soft); color: var(--muted); font-size: 12px; padding: 7px 8px; }
.slot { padding: 4px; background: #fff; }
.slot.off-hours { background: #f7f8fa; }
.slot.target { outline: 2px solid var(--blue); outline-offset: -2px; }
.booking { width: 100%; display: grid; gap: 2px; min-height: 35px; border: 0; border-left: 4px solid var(--blue); border-radius: 5px; background: #eef6ff; padding: 5px 7px; text-align: left; box-shadow: 0 2px 8px rgba(31,41,55,.1); cursor: grab; }
.booking.group { background: #f5efff; }
.booking strong, .booking span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.booking span { color: var(--muted); font-size: 12px; }
.month-grid { display: grid; grid-template-columns: repeat(7, minmax(116px, 1fr)); background: #fff; }
.month-head, .month-day { min-height: 112px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 10px; }
.month-head { min-height: 42px; background: #eef2f6; font-weight: 800; color: var(--muted); }
.month-day { display: grid; align-content: start; gap: 6px; text-align: left; }
.month-day.is-muted { background: #f8fafc; color: var(--muted); }
.month-day.is-current { outline: 2px solid var(--blue); outline-offset: -2px; }
.month-count { display: inline-flex; align-items: center; justify-content: center; min-width: 24px; height: 24px; border-radius: 6px; background: #20324a; color: #fff; font-size: 12px; font-weight: 800; }
.columns { display: grid; gap: 16px; align-items: start; }
.columns.two { grid-template-columns: repeat(2, minmax(280px, 1fr)); }
.columns.three { grid-template-columns: repeat(3, minmax(240px, 1fr)); }
.columns.four { grid-template-columns: repeat(4, minmax(220px, 1fr)); }
.feature-row { margin-top: 16px; }
.panel { background: var(--surface); border: 1px solid var(--line); border-radius: 8px; padding: 16px; box-shadow: 0 12px 28px rgba(25,35,50,.08); min-width: 0; }
.wide { max-width: 980px; }
.panel-head { display: flex; justify-content: space-between; gap: 12px; align-items: center; }
.inline-form { display: grid; gap: 8px; align-items: end; margin-bottom: 12px; }
.resource-form { grid-template-columns: 1fr 80px auto; }
.service-form { grid-template-columns: 1fr 110px 110px auto; }
.feature-form { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; align-items: end; margin-bottom: 12px; }
.feature-form button { grid-column: 1 / -1; }
.schedule-panel { margin-top: 16px; }
.schedule-resource { max-width: 360px; margin-bottom: 12px; }
.schedule-form { display: grid; gap: 10px; margin-bottom: 14px; }
.weekly-hours { display: grid; grid-template-columns: repeat(7, minmax(120px, 1fr)); gap: 8px; }
.day-rule { border: 1px solid var(--line); border-radius: 6px; padding: 10px; background: var(--soft); display: grid; gap: 8px; }
.day-rule strong { font-size: 13px; }
.day-rule .time-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.toggle-line { display: flex; gap: 8px; align-items: center; color: var(--text); font-size: 12px; font-weight: 700; }
.toggle-line input { width: auto; }
.schedule-forms, .schedule-lists { display: grid; grid-template-columns: repeat(3, minmax(220px, 1fr)); gap: 12px; align-items: start; }
.schedule-mini-form { grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--line); padding-top: 12px; }
.schedule-mini-form button { grid-column: 1 / -1; }
.list { border-top: 1px solid var(--line); }
.row { display: grid; grid-template-columns: 1fr auto; gap: 12px; align-items: center; min-height: 44px; border-bottom: 1px solid var(--line); padding: 8px 0; }
.row small { color: var(--muted); line-height: 1.35; }
.summary-grid { display: grid; grid-template-columns: repeat(5, minmax(140px, 1fr)); gap: 12px; margin-bottom: 16px; }
.summary-item { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 12px; }
.summary-item strong { display: block; font-size: 22px; margin-bottom: 3px; }
.summary-item span { color: var(--muted); font-size: 12px; }
.status-box { padding: 12px; border: 1px solid var(--line); border-radius: 6px; background: var(--soft); overflow-wrap: anywhere; }
.mapping-form { margin-top: 14px; display: grid; grid-template-columns: 1fr 1fr auto; gap: 10px; align-items: end; }
.sync-tools { margin-top: 14px; display: grid; grid-template-columns: 1.4fr auto 1fr auto; gap: 10px; align-items: end; }
.sync-result { margin-top: 12px; min-height: 80px; max-height: 240px; overflow: auto; background: #f8fafc; border: 1px solid var(--line); border-radius: 6px; padding: 10px; color: var(--muted); }
.diagnostics { overflow: auto; max-height: 560px; background: #101827; color: #d9e7ff; border-radius: 6px; padding: 14px; }
dialog { width: min(840px, calc(100vw - 28px)); border: 1px solid var(--line); border-radius: 8px; padding: 0; box-shadow: 0 24px 80px rgba(0,0,0,.28); }
dialog::backdrop { background: rgba(15,23,42,.44); }
.dialog-form { padding: 16px; display: grid; gap: 14px; }
.dialog-head, .dialog-actions { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.dialog-actions span { flex: 1; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.toast { position: fixed; right: 18px; bottom: 18px; min-width: 220px; max-width: 420px; border-radius: 7px; background: #20324a; color: #fff; padding: 12px 14px; opacity: 0; transform: translateY(110px); transition: .2s ease; }
.toast.show { opacity: 1; transform: translateY(0); }
@media (max-width: 1180px) {
  .columns.four, .columns.three, .summary-grid, .weekly-hours, .schedule-forms, .schedule-lists { grid-template-columns: repeat(2, minmax(220px, 1fr)); }
}
@media (max-width: 980px) {
  .layout { display: block; }
  .sidebar { width: auto; min-height: auto; }
  .filters, .columns.two, .columns.three, .columns.four, .mapping-form, .sync-tools, .topbar, .summary-grid { grid-template-columns: 1fr; display: grid; }
  .board { grid-template-columns: 1fr; }
  .resource-rail { display: none; }
  .grid { grid-template-columns: 68px repeat(var(--resource-count), minmax(150px, 1fr)); }
  .month-grid { grid-template-columns: repeat(2, minmax(130px, 1fr)); }
  .month-head { display: none; }
  .form-grid, .feature-form, .service-form, .resource-form, .weekly-hours, .schedule-forms, .schedule-lists, .schedule-mini-form { grid-template-columns: 1fr; }
}