/* SalesBoost design tokens — derived from the validated dataviz reference palette.
   Light values are the default; dark values are declared explicitly (not an
   automatic invert) and win under prefers-color-scheme:dark and [data-theme="dark"]. */

:root {
  color-scheme: light;
  --page: #f9f9f7;
  --surface: #fcfcfb;
  --surface-raised: #ffffff;
  --text-primary: #0b0b0b;
  --text-secondary: #52514e;
  --text-muted: #898781;
  --gridline: #e1e0d9;
  --baseline: #c3c2b7;
  --border: rgba(11, 11, 11, 0.10);

  --series-1: #2a78d6; /* blue */
  --series-2: #eb6834; /* orange */
  --series-3: #1baf7a; /* aqua */
  --series-4: #eda100; /* yellow */
  --series-5: #e87ba4; /* magenta */
  --series-6: #008300; /* green */
  --series-7: #4a3aa7; /* violet */
  --series-8: #e34948; /* red */

  --status-good: #0ca30c;
  --status-warning: #fab219;
  --status-serious: #ec835a;
  --status-critical: #d03b3b;
  --status-good-bg: #e6f6e6;
  --status-warning-bg: #fff3d9;
  --status-serious-bg: #fce6dc;
  --status-critical-bg: #fbe3e3;

  --font: system-ui, -apple-system, "Segoe UI", sans-serif;
  --sidebar-w: 240px;
}

@media (prefers-color-scheme: dark) {
  :root:where(:not([data-theme="light"])) {
    color-scheme: dark;
    --page: #0d0d0d;
    --surface: #1a1a19;
    --surface-raised: #222221;
    --text-primary: #ffffff;
    --text-secondary: #c3c2b7;
    --text-muted: #898781;
    --gridline: #2c2c2a;
    --baseline: #383835;
    --border: rgba(255, 255, 255, 0.10);

    --series-1: #3987e5;
    --series-2: #d95926;
    --series-3: #199e70;
    --series-4: #c98500;
    --series-5: #d55181;
    --series-6: #008300;
    --series-7: #9085e9;
    --series-8: #e66767;

    --status-good-bg: rgba(12, 163, 12, 0.16);
    --status-warning-bg: rgba(250, 178, 25, 0.16);
    --status-serious-bg: rgba(236, 131, 90, 0.16);
    --status-critical-bg: rgba(208, 59, 59, 0.16);
  }
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --page: #0d0d0d;
  --surface: #1a1a19;
  --surface-raised: #222221;
  --text-primary: #ffffff;
  --text-secondary: #c3c2b7;
  --text-muted: #898781;
  --gridline: #2c2c2a;
  --baseline: #383835;
  --border: rgba(255, 255, 255, 0.10);

  --series-1: #3987e5;
  --series-2: #d95926;
  --series-3: #199e70;
  --series-4: #c98500;
  --series-5: #d55181;
  --series-6: #008300;
  --series-7: #9085e9;
  --series-8: #e66767;

  --status-good-bg: rgba(12, 163, 12, 0.16);
  --status-warning-bg: rgba(250, 178, 25, 0.16);
  --status-serious-bg: rgba(236, 131, 90, 0.16);
  --status-critical-bg: rgba(208, 59, 59, 0.16);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--page);
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 14px;
}

a { color: var(--series-1); text-decoration: none; }
a:hover { text-decoration: underline; }

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

/* Sidebar */
.sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 20px 12px;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 4px 10px 20px;
  font-weight: 700;
  font-size: 17px;
}

.brand-mark {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--series-1), var(--series-3));
  flex-shrink: 0;
}

.nav-group { margin-bottom: 18px; }

.nav-label {
  text-transform: uppercase;
  letter-spacing: .06em;
  font-size: 11px;
  color: var(--text-muted);
  padding: 0 10px 6px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: 8px;
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 2px;
}

.nav-link:hover { background: var(--page); text-decoration: none; color: var(--text-primary); }
.nav-link.active { background: var(--series-1); color: #fff; }
.nav-link .dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; opacity: .5; }

/* Main column */
.main {
  flex: 1;
  min-width: 0;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 28px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  position: sticky;
  top: 0;
  z-index: 5;
}

.topbar h1 {
  font-size: 18px;
  margin: 0;
  font-weight: 600;
}

.topbar-sub {
  color: var(--text-secondary);
  font-size: 12.5px;
  margin-top: 2px;
}

.user-chip {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text-secondary);
}

.content {
  padding: 24px 28px 60px;
  max-width: 1320px;
}

/* Cards */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 20px;
}

.card-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 14px;
  gap: 12px;
  flex-wrap: wrap;
}

.card-title {
  font-size: 15px;
  font-weight: 600;
  margin: 0;
}

.card-subtitle {
  font-size: 12.5px;
  color: var(--text-muted);
  margin-top: 2px;
}

.grid {
  display: grid;
  gap: 18px;
}

.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

@media (max-width: 1100px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 700px) {
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .sidebar { display: none; }
}

/* Stat tiles */
.stat-tile { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 16px 18px; }
.stat-label { font-size: 12.5px; color: var(--text-secondary); margin-bottom: 8px; }
.stat-value { font-size: 26px; font-weight: 600; line-height: 1.1; }
.stat-delta { font-size: 12.5px; margin-top: 8px; display: inline-flex; align-items: center; gap: 4px; }
.stat-delta.up { color: var(--status-good); }
.stat-delta.down { color: var(--status-critical); }
.stat-delta.flat { color: var(--text-muted); }

/* Tables */
table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
th { text-align: left; color: var(--text-muted); font-weight: 600; font-size: 11.5px; text-transform: uppercase; letter-spacing: .03em; padding: 8px 12px; border-bottom: 1px solid var(--gridline); }
td { padding: 11px 12px; border-bottom: 1px solid var(--gridline); color: var(--text-primary); }
tbody tr:hover { background: var(--page); }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
.table-wrap { overflow-x: auto; }

/* Badges */
.badge { display: inline-flex; align-items: center; gap: 5px; padding: 3px 9px; border-radius: 100px; font-size: 11.5px; font-weight: 600; }
.badge-draft { background: var(--gridline); color: var(--text-secondary); }
.badge-sent { background: var(--status-warning-bg); color: #8a5a00; }
.badge-paid { background: var(--status-good-bg); color: #0a6b0a; }
.badge-overdue { background: var(--status-critical-bg); color: #a12626; }
.badge-cancelled { background: var(--gridline); color: var(--text-muted); }
.badge-active { background: var(--status-good-bg); color: #0a6b0a; }
.badge-at_risk { background: var(--status-warning-bg); color: #8a5a00; }
.badge-churned { background: var(--status-critical-bg); color: #a12626; }
.badge-new { background: rgba(42,120,214,.14); color: var(--series-1); }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 6px; padding: 8px 14px; border-radius: 8px; font-size: 13.5px; font-weight: 600; border: 1px solid transparent; cursor: pointer; font-family: var(--font); }
.btn-primary { background: var(--series-1); color: #fff; }
.btn-primary:hover { background: #1f66bd; text-decoration: none; }
.btn-secondary { background: var(--surface); color: var(--text-primary); border-color: var(--border); }
.btn-secondary:hover { background: var(--page); text-decoration: none; }
.btn-danger { background: var(--status-critical); color: #fff; }
.btn-sm { padding: 5px 10px; font-size: 12.5px; }
.btn-row { display: flex; gap: 10px; align-items: center; }

/* Forms */
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.field.full { grid-column: 1 / -1; }
label { font-size: 12.5px; font-weight: 600; color: var(--text-secondary); }
input, select, textarea {
  font-family: var(--font);
  font-size: 13.5px;
  padding: 9px 11px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-primary);
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--series-1); outline-offset: 1px; }
.hint { font-size: 11.5px; color: var(--text-muted); }

/* Flash + alerts */
.flash { padding: 11px 16px; border-radius: 8px; margin-bottom: 16px; font-size: 13.5px; }
.flash-success { background: var(--status-good-bg); color: #0a6b0a; }
.flash-error { background: var(--status-critical-bg); color: #a12626; }

/* Legend */
.legend { display: flex; gap: 16px; flex-wrap: wrap; font-size: 12.5px; color: var(--text-secondary); margin-top: 10px; }
.legend-item { display: flex; align-items: center; gap: 6px; }
.legend-swatch { width: 10px; height: 10px; border-radius: 3px; flex-shrink: 0; }
.legend-swatch.line-dashed { border-radius: 0; height: 2px; width: 16px; background: none; border-top: 2px dashed var(--text-muted); }

/* Data table toggle under charts */
details.data-table summary { cursor: pointer; font-size: 12.5px; color: var(--series-1); margin-top: 8px; }
details.data-table summary:hover { text-decoration: underline; }

/* Auth screen */
.auth-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: var(--page); }
.auth-card { width: 360px; background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 32px; }
.auth-card h1 { font-size: 18px; margin: 0 0 4px; }
.auth-card p.hint { margin: 0 0 20px; }

.section-title { font-size: 13px; text-transform: uppercase; letter-spacing: .04em; color: var(--text-muted); margin: 28px 0 12px; }
.empty-state { padding: 40px 20px; text-align: center; color: var(--text-muted); }
.pill-tabs { display: flex; gap: 6px; margin-bottom: 18px; flex-wrap: wrap; }
.pill-tab { padding: 7px 14px; border-radius: 100px; font-size: 13px; font-weight: 600; color: var(--text-secondary); background: var(--surface); border: 1px solid var(--border); }
.pill-tab.active { background: var(--series-1); color: #fff; border-color: var(--series-1); }