:root {
  --bg: #0f1218;
  --surface: #171b23;
  --surface-2: #1e242e;
  --border: #2a313d;
  --text: #e7ebf0;
  --text-dim: #9aa4b2;
  --accent: #4f8cff;
  --accent-2: #22c58b;
  --danger: #ff6b6b;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.25);
  font-synthesis: none;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f4f6fa;
    --surface: #ffffff;
    --surface-2: #f7f9fc;
    --border: #e3e8ef;
    --text: #1a2230;
    --text-dim: #64707f;
    --accent: #2f6bff;
    --accent-2: #10a877;
    --shadow: 0 1px 2px rgba(16, 24, 40, 0.06), 0 8px 24px rgba(16, 24, 40, 0.08);
  }
}

* { box-sizing: border-box; }

/* The `hidden` attribute must win even over explicit display rules
   (e.g. .panels { display: grid }), otherwise toggled panels stay visible. */
[hidden] { display: none !important; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

/* Topbar */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  position: sticky;
  top: 0;
  z-index: 10;
}
.brand { display: flex; align-items: center; gap: 14px; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  font-weight: 800;
  letter-spacing: 0.5px;
  font-size: 15px;
}
.brand h1 { margin: 0; font-size: 18px; font-weight: 700; }
.brand-sub { margin: 2px 0 0; font-size: 12.5px; color: var(--text-dim); }

.topbar-right { display: flex; align-items: center; gap: 16px; }
.logout {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 7px 14px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}
.logout:hover { color: var(--text); border-color: var(--text-dim); }
.conn { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-dim); }
.dot { width: 9px; height: 9px; border-radius: 50%; background: var(--text-dim); }
.dot.ok { background: var(--accent-2); box-shadow: 0 0 0 3px rgba(34, 197, 139, 0.18); }
.dot.bad { background: var(--danger); box-shadow: 0 0 0 3px rgba(255, 107, 107, 0.18); }

main { max-width: 1120px; margin: 0 auto; padding: 24px; }

/* Filters */
.filters {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}
.presets { display: inline-flex; background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 4px; gap: 2px; }
.preset {
  border: 0;
  background: transparent;
  color: var(--text-dim);
  padding: 8px 14px;
  border-radius: 7px;
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.preset:hover { color: var(--text); }
.preset.is-active { background: var(--accent); color: #fff; }

.range { display: inline-flex; align-items: center; gap: 10px; }
.range label { display: inline-flex; align-items: center; gap: 6px; font-size: 12.5px; color: var(--text-dim); }
.range input[type="date"] {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 7px 10px;
  border-radius: 8px;
  font-size: 13px;
  color-scheme: dark light;
}
.apply {
  background: var(--accent);
  color: #fff;
  border: 0;
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
}
.apply:hover { filter: brightness(1.08); }
.range-label { font-size: 13px; color: var(--text-dim); margin-left: auto; }

/* Banner */
.banner {
  background: rgba(255, 107, 107, 0.1);
  border: 1px solid rgba(255, 107, 107, 0.4);
  color: var(--text);
  padding: 12px 16px;
  border-radius: 10px;
  margin-bottom: 20px;
  font-size: 13.5px;
  line-height: 1.5;
}
.banner code { background: rgba(127, 127, 127, 0.18); padding: 1px 6px; border-radius: 5px; font-size: 12.5px; }

/* KPI cards */
.kpis {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.card.cr { border-color: color-mix(in srgb, var(--accent) 45%, var(--border)); }
.card.cr .card-value { color: var(--accent); }
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  box-shadow: var(--shadow);
}
.card.accent { border-color: color-mix(in srgb, var(--accent-2) 45%, var(--border)); }
.card-label { font-size: 12.5px; color: var(--text-dim); font-weight: 600; text-transform: uppercase; letter-spacing: 0.4px; }
.card-value { font-size: 30px; font-weight: 750; letter-spacing: -0.5px; font-variant-numeric: tabular-nums; }
.card.accent .card-value { color: var(--accent-2); }

/* Table */
.table-wrap {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.table-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--border);
}
.table-head h2 { margin: 0; font-size: 15px; font-weight: 700; }
#search {
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 13px;
  width: 240px;
  max-width: 45vw;
}
.table-scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
thead th {
  text-align: left;
  padding: 11px 18px;
  color: var(--text-dim);
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  background: var(--surface-2);
  white-space: nowrap;
  border-bottom: 1px solid var(--border);
}
th.num, td.num { text-align: right; font-variant-numeric: tabular-nums; }
th.sortable { cursor: pointer; user-select: none; }
th.sortable:hover { color: var(--text); }
th .arrow { display: inline-block; width: 10px; color: var(--accent); }
tbody td { padding: 11px 18px; border-bottom: 1px solid var(--border); }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover { background: var(--surface-2); }
td.campaign { font-weight: 600; }
td.partner { color: var(--text-dim); }
.bar {
  display: inline-block;
  height: 6px;
  border-radius: 3px;
  background: var(--accent-2);
  vertical-align: middle;
  margin-left: 8px;
}
tfoot td {
  padding: 12px 18px;
  border-top: 2px solid var(--border);
  font-weight: 700;
  background: var(--surface-2);
  font-variant-numeric: tabular-nums;
}

.empty, .loading { padding: 28px; text-align: center; color: var(--text-dim); font-size: 14px; }
.loading { display: flex; align-items: center; justify-content: center; gap: 10px; }
.spinner {
  width: 16px; height: 16px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Layout: sidebar + content */
.layout {
  display: grid;
  grid-template-columns: 268px minmax(0, 1fr);
  gap: 20px;
  align-items: start;
}
.content { min-width: 0; }

.sidebar {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  position: sticky;
  top: 88px;
  max-height: calc(100vh - 108px);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.sidebar-head { padding: 14px 14px 12px; border-bottom: 1px solid var(--border); }
.sidebar-head h2 { margin: 0 0 10px; font-size: 14px; font-weight: 700; }
.dim-toggle {
  display: flex;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 3px;
  gap: 2px;
  margin-bottom: 10px;
}
.dim {
  flex: 1;
  border: 0;
  background: transparent;
  color: var(--text-dim);
  padding: 7px 10px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}
.dim:hover { color: var(--text); }
.dim.is-active { background: var(--accent); color: #fff; }
#camp-search {
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 11px;
  border-radius: 8px;
  font-size: 13px;
}
.camp-list { list-style: none; margin: 0; padding: 6px; overflow-y: auto; }
.camp-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 9px 11px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 13.5px;
}
.camp-item:hover { background: var(--surface-2); }
.camp-item.is-active { background: color-mix(in srgb, var(--accent) 16%, transparent); }
.camp-item.is-active .camp-name { color: var(--accent); font-weight: 650; }
.camp-name { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.camp-val { color: var(--text-dim); font-variant-numeric: tabular-nums; font-size: 12.5px; }

/* Overview panels: two aggregate tables side by side */
.panels {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}
.hint { font-size: 12px; color: var(--text-dim); }
td.name { font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 220px; }
tr.row-click { cursor: pointer; }
tr.row-click:hover td { background: color-mix(in srgb, var(--accent) 8%, transparent); }
.chip-btn {
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
}
.chip-btn:hover { color: var(--text); border-color: var(--text-dim); }

@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { position: static; max-height: 320px; }
  .panels { grid-template-columns: 1fr; }
}

/* Chart */
.chart-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
  margin-bottom: 24px;
}
.chart-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}
.chart-head h2 { margin: 0; font-size: 15px; font-weight: 700; }
.legend { display: flex; align-items: center; gap: 14px; font-size: 12.5px; color: var(--text-dim); }
.legend-item { display: inline-flex; align-items: center; gap: 6px; }
.swatch { width: 11px; height: 11px; border-radius: 3px; display: inline-block; }
.swatch.track { background: color-mix(in srgb, var(--accent) 32%, transparent); }
.swatch.sent { background: var(--accent-2); }
.legend-bucket { opacity: 0.7; }
.chart-body { position: relative; }
#chart { width: 100%; height: 240px; display: block; }
#chart text { fill: var(--text-dim); font-size: 11px; }
#chart .grid { stroke: var(--border); stroke-width: 1; }
#chart .bar-track { fill: color-mix(in srgb, var(--accent) 30%, transparent); }
#chart .bar-sent { fill: var(--accent-2); }
#chart .bar-hit { fill: transparent; cursor: pointer; }
#chart .bar-hit:hover + .bar-group .bar-track,
#chart g:hover > .bar-track { fill: color-mix(in srgb, var(--accent) 48%, transparent); }
.chart-empty { text-align: center; color: var(--text-dim); padding: 60px 0; font-size: 14px; }

/* Admin / user management */
.admin-main { max-width: 780px; margin: 0 auto; padding: 24px; }
.admin-card { margin-bottom: 20px; }
.user-form {
  display: grid;
  grid-template-columns: 1fr 1fr auto auto;
  gap: 14px;
  align-items: end;
  padding: 18px;
}
.user-form .login-field { color: var(--text-dim); }
.user-form select {
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 9px;
  font-size: 14px;
}
.user-form .apply { padding: 10px 16px; height: fit-content; }
.chip-btn.danger { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 40%, var(--border)); }
.chip-btn.danger:hover { background: color-mix(in srgb, var(--danger) 12%, transparent); color: var(--danger); }
@media (max-width: 640px) {
  .user-form { grid-template-columns: 1fr; }
}

/* Login */
.login-body {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}
.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow);
  padding: 28px;
  width: 100%;
  max-width: 360px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.login-brand { display: flex; align-items: center; gap: 14px; margin-bottom: 4px; }
.login-brand h1 { margin: 0; font-size: 18px; }
.login-field { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--text-dim); font-weight: 600; }
.login-field input {
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 9px;
  font-size: 14px;
}
.login-field input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.login-btn {
  background: var(--accent);
  color: #fff;
  border: 0;
  padding: 11px;
  border-radius: 9px;
  font-size: 14px;
  font-weight: 650;
  cursor: pointer;
  margin-top: 4px;
}
.login-btn:hover { filter: brightness(1.08); }
.login-btn:disabled { opacity: 0.6; cursor: default; }
.login-error {
  margin: 0;
  color: var(--danger);
  font-size: 13px;
  background: rgba(255, 107, 107, 0.1);
  border: 1px solid rgba(255, 107, 107, 0.35);
  padding: 9px 12px;
  border-radius: 8px;
}

@media (max-width: 720px) {
  .kpis { grid-template-columns: repeat(2, 1fr); }
  .range-label { width: 100%; margin-left: 0; }
  .filters { gap: 10px; }
  .chart-head { flex-direction: column; align-items: flex-start; gap: 8px; }
}