/* BTV — light, minimal. Logical properties keep the layout correct in RTL. */

:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --border: #e5e7eb;
  --text: #111827;
  --muted: #6b7280;
  --primary: #16a34a;
  --primary-hover: #15803d;
  --primary-soft: #f0fdf4;
  --danger: #dc2626;
  --danger-soft: #fef2f2;
  --radius: 10px;
  --nav-width: 240px;
  --nav-collapsed: 64px;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.04), 0 4px 16px rgba(0, 0, 0, 0.04);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html, body { margin: 0; height: 100%; }

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 14px;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

h1 { font-size: 22px; font-weight: 600; margin: 0; }
h2 { font-size: 16px; font-weight: 600; margin: 0 0 12px; }

.muted { color: var(--muted); }
.mono { font-variant-numeric: tabular-nums; }

/* ---------------------------------------------------------------- layout */

.layout { display: flex; min-height: 100vh; }

.nav {
  position: sticky;
  top: 0;
  height: 100vh;
  width: var(--nav-width);
  flex: none;
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border-inline-end: 1px solid var(--border);
  transition: width 0.15s ease;
  overflow: hidden;
}
.layout.collapsed .nav { width: var(--nav-collapsed); }
.layout.collapsed .nav .label { display: none; }

.nav-head {
  display: flex;
  align-items: center;
  gap: 10px;
  height: 60px;
  padding: 0 12px;
  border-bottom: 1px solid var(--border);
}
.brand { flex: 1; min-width: 0; display: flex; align-items: center; }
.brand img { display: block; max-height: 40px; max-width: 100%; width: auto; }
.layout.collapsed .brand { display: none; }

.nav-links { flex: 1; padding: 10px 8px; display: flex; flex-direction: column; gap: 2px; overflow-y: auto; }
.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 12px;
  border-radius: 8px;
  color: var(--text);
  white-space: nowrap;
}
.nav-link:hover { background: var(--bg); text-decoration: none; }
.nav-link.active { background: var(--primary-soft); color: var(--primary); font-weight: 600; }
.nav-link svg { flex: none; }

.nav-foot { border-top: 1px solid var(--border); padding: 10px 8px; display: flex; flex-direction: column; gap: 2px; }
.nav-user { display: flex; align-items: center; gap: 12px; padding: 8px 12px; }
.avatar {
  flex: none;
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: grid; place-items: center;
  font-weight: 700;
}
.nav-user .name { font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.nav-user .role { font-size: 12px; color: var(--muted); }

.main { flex: 1; min-width: 0; padding: 24px 28px; }

.page-head {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}
.page-head .spacer { flex: 1; }

/* ---------------------------------------------------------------- controls */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  cursor: pointer;
  white-space: nowrap;
  line-height: 1.2;
}
.btn:hover { background: var(--bg); }
.btn:disabled { opacity: 0.5; cursor: default; }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-hover); }
.btn.danger { color: var(--danger); border-color: #fecaca; background: var(--danger-soft); }
.btn.danger:hover { background: #fee2e2; }
.btn.icon { padding: 8px; }
.btn.small { padding: 5px 10px; font-size: 13px; }

.input, select, textarea, input[type="text"], input[type="search"], input[type="email"], input[type="password"], input[type="number"], input[type="date"] {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  outline: none;
}
input:focus, select:focus, textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft); }
textarea { min-height: 90px; resize: vertical; }
select[multiple] { min-height: 110px; }
.invalid { border-color: var(--danger) !important; }
.field-error { color: var(--danger); font-size: 12px; margin-top: 4px; }

.search {
  position: relative;
  min-width: 240px;
}
.search svg { position: absolute; inset-inline-start: 10px; top: 50%; transform: translateY(-50%); color: var(--muted); }
.search input { padding-inline-start: 36px; }

.toolbar { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 14px; }
.toolbar select { width: auto; min-width: 140px; }
.date-range { display: inline-flex; align-items: center; gap: 6px; }
.date-range .datepicker { width: 165px; }
.date-range .date-text { padding: 7px 8px; }

/* ---------------------------------------------------------------- date picker */

.datepicker { position: relative; display: flex; align-items: center; }
.datepicker .date-text { padding-right: 36px; font-variant-numeric: tabular-nums; direction: ltr; text-align: left; }
[dir="rtl"] .datepicker .date-text { padding-right: 10px; padding-left: 36px; } /* the button sits on the left in RTL */
.datepicker .date-button {
  position: absolute;
  inset-inline-end: 4px;
  top: 50%;
  transform: translateY(-50%);
  border: 0;
  background: transparent;
  color: var(--muted);
  padding: 4px;
  border-radius: 6px;
  cursor: pointer;
  display: grid;
  place-items: center;
}
.datepicker .date-button:hover { color: var(--primary); background: var(--primary-soft); }
.datepicker .date-button:disabled { opacity: 0.4; cursor: default; }
.calendar {
  position: absolute;
  top: calc(100% + 6px);
  inset-inline-start: 0;
  z-index: 50;
  width: 280px;
  padding: 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}
.calendar-head { display: flex; align-items: center; gap: 6px; margin-bottom: 8px; }
.calendar-title { flex: 1; text-align: center; font-weight: 600; }
.calendar .forward svg { transform: scaleX(-1); }
[dir="rtl"] .calendar-head svg { transform: scaleX(-1); }
[dir="rtl"] .calendar .forward svg { transform: none; }
.calendar-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 2px; }
.calendar .weekday { text-align: center; font-size: 11px; color: var(--muted); padding: 4px 0; }
.calendar .day {
  border: 0;
  background: transparent;
  border-radius: 6px;
  padding: 6px 0;
  cursor: pointer;
  font-variant-numeric: tabular-nums;
}
.calendar .day:hover { background: var(--primary-soft); color: var(--primary); }
.calendar .day.today { font-weight: 700; color: var(--primary); }
.calendar .day.selected { background: var(--primary); color: #fff; }
.calendar-foot { display: flex; justify-content: space-between; margin-top: 8px; }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  background: var(--bg);
  color: var(--muted);
}
.badge.id { font-family: ui-monospace, monospace; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

/* ---------------------------------------------------------------- table */

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 10px 12px; text-align: start; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); font-weight: 600; background: #fafafa; user-select: none; }
th.sortable { cursor: pointer; }
th.sortable:hover { color: var(--text); }
th .arrow { font-size: 10px; margin-inline-start: 4px; }
tbody tr { cursor: pointer; }
tbody tr:hover { background: var(--primary-soft); }
tbody tr.selected { background: #dcfce7; }
tr:last-child td { border-bottom: 0; }
td.check, th.check { width: 36px; }
td .cell { max-width: 320px; overflow: hidden; text-overflow: ellipsis; }
td.empty { text-align: center; padding: 40px; color: var(--muted); cursor: default; }
tbody tr:has(td.empty):hover { background: transparent; }

.selection-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding: 10px 14px;
  background: var(--primary-soft);
  border-bottom: 1px solid var(--border);
}

.pager {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 12px 14px;
  border-top: 1px solid var(--border);
  color: var(--muted);
}
.pager .spacer { flex: 1; }
.pager select { width: auto; padding: 5px 8px; }

/* ---------------------------------------------------------------- form */

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px 20px;
  padding: 20px;
}
.form-row { display: flex; flex-direction: column; gap: 6px; }
.form-row.wide { grid-column: 1 / -1; }
.form-row label { font-size: 13px; font-weight: 600; color: var(--muted); }
.form-row label .req { color: var(--danger); }
.form-actions {
  display: flex;
  gap: 10px;
  align-items: center;
  padding: 14px 20px;
  border-top: 1px solid var(--border);
}
.form-actions .spacer { flex: 1; }
.form-meta { display: flex; gap: 18px; flex-wrap: wrap; padding: 12px 20px; border-bottom: 1px solid var(--border); font-size: 13px; color: var(--muted); }
.form-meta b { color: var(--text); font-weight: 500; }

.subtable { width: 100%; }
.subtable th, .subtable td { padding: 6px; border-bottom: 0; white-space: normal; }
.subtable th { background: transparent; text-transform: none; letter-spacing: 0; }
.subtable tbody tr { cursor: default; }
.subtable tbody tr:hover { background: transparent; }
.subtable input, .subtable select { padding: 6px 8px; }

.file-box { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }

.related { margin-top: 24px; }
.related .card { margin-top: 12px; }
.related .card-head { display: flex; align-items: center; gap: 10px; padding: 12px 16px; border-bottom: 1px solid var(--border); }
.related .card-head h2 { margin: 0; flex: 1; }

.notice {
  padding: 10px 14px;
  border-radius: 8px;
  background: #fffbeb;
  border: 1px solid #fde68a;
  color: #92400e;
  margin-bottom: 14px;
}

/* ---------------------------------------------------------------- import */

.dropzone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 40px 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.dropzone:hover, .dropzone.over { border-color: var(--primary); background: var(--primary-soft); }
.dropzone-icon { display: inline-block; color: var(--primary); }
.dropzone-icon svg { width: 36px; height: 36px; }
.dropzone-title { font-weight: 600; margin: 8px 0 4px; }

.import-card { margin-top: 18px; }
.import-card .card-head { display: flex; align-items: center; gap: 10px; padding: 12px 16px; border-bottom: 1px solid var(--border); }
.import-card .card-head h2 { margin: 0; flex: 1; }
.import-card .form-grid { padding: 14px 16px; }
.mapping select { width: 100%; min-width: 180px; }
.mapping tbody tr { cursor: default; }
.mapping tbody tr:hover { background: transparent; }
.import-card tbody tr { cursor: default; }
.import-card tbody tr:hover { background: transparent; }
.import-errors { margin: 0; padding: 10px 16px 10px 36px; color: var(--danger); font-size: 13px; max-height: 200px; overflow-y: auto; border-bottom: 1px solid var(--border); }
.check-label { display: inline-flex; align-items: center; gap: 6px; }
.badge.status-new { background: #dcfce7; color: #166534; }
.badge.status-update { background: #fef3c7; color: #92400e; }
.badge.status-error { background: var(--danger-soft); color: var(--danger); }
tr.row-error td { background: #fff7f7; }

/* ---------------------------------------------------------------- login */

.login {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 20px;
}
.login .card { width: 100%; max-width: 380px; padding: 32px; display: flex; flex-direction: column; gap: 14px; }
.login .brand { justify-content: center; margin-bottom: 8px; }
.login .brand img { max-height: none; width: 260px; }
.login .btn.primary { justify-content: center; margin-top: 6px; }
.login .lang { display: flex; justify-content: center; gap: 12px; margin-top: 8px; }
.login .error { color: var(--danger); text-align: center; min-height: 1.2em; }

/* ---------------------------------------------------------------- toast */

.toast {
  position: fixed;
  bottom: 24px;
  inset-inline-end: 24px;
  padding: 12px 18px;
  border-radius: 10px;
  background: var(--text);
  color: #fff;
  box-shadow: var(--shadow);
  z-index: 100;
  max-width: 360px;
}
.toast.error { background: var(--danger); }

@media (max-width: 800px) {
  .main { padding: 16px; }
  .nav { position: fixed; z-index: 10; }
  .layout { padding-inline-start: var(--nav-collapsed); }
  .form-grid { grid-template-columns: 1fr; }
}