* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; }
body {
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--page-plane);
  color: var(--text-primary);
}

.viz-root {
  color-scheme: light;
  --page-plane:      #f4f5f7;
  --surface-1:       #ffffff;
  --text-primary:    #0b0b0b;
  --text-secondary:  #52514e;
  --text-muted:      #898781;
  --gridline:        #e7e7e5;
  --baseline:        #c3c2b7;
  --border:          rgba(11,11,11,0.08);
  --success:         #006300;
  --sidebar-bg:      #0d1526;
  --sidebar-text:    #aab2c5;
  --sidebar-active:  #2a78d6;

  --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 */
}
@media (prefers-color-scheme: dark) {
  :root:where(:not([data-theme="light"])) .viz-root {
    color-scheme: dark;
    --page-plane:      #0d0d0d;
    --surface-1:       #17181a;
    --text-primary:    #ffffff;
    --text-secondary:  #c3c2b7;
    --text-muted:      #898781;
    --gridline:        #2c2c2a;
    --baseline:        #383835;
    --border:          rgba(255,255,255,0.10);
    --success:         #0ca30c;
    --sidebar-bg:      #05070d;
    --series-1: #3987e5; --series-2: #d95926; --series-3: #199e70; --series-4: #c98500;
    --series-5: #d55181; --series-6: #008300; --series-7: #9085e9; --series-8: #e66767;
  }
}
:root[data-theme="dark"] .viz-root {
  color-scheme: dark;
  --page-plane:      #0d0d0d;
  --surface-1:       #17181a;
  --text-primary:    #ffffff;
  --text-secondary:  #c3c2b7;
  --text-muted:      #898781;
  --gridline:        #2c2c2a;
  --baseline:        #383835;
  --border:          rgba(255,255,255,0.10);
  --success:         #0ca30c;
  --sidebar-bg:      #05070d;
  --series-1: #3987e5; --series-2: #d95926; --series-3: #199e70; --series-4: #c98500;
  --series-5: #d55181; --series-6: #008300; --series-7: #9085e9; --series-8: #e66767;
}

.muted { color: var(--text-muted); }
.small { font-size: 12px; }
.hidden { display: none !important; }

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

/* ---------- Sidebar ---------- */
.sidebar {
  width: 240px; flex-shrink: 0; background: var(--sidebar-bg); color: var(--sidebar-text);
  display: flex; flex-direction: column; padding: 18px 14px; gap: 20px;
}
.brand { display: flex; align-items: center; gap: 10px; padding: 0 6px; }
.brand-icon { font-size: 20px; }
.brand-name { color: #fff; font-weight: 600; font-size: 15px; }
.side-nav { display: flex; flex-direction: column; gap: 2px; flex: 1; }
.nav-item {
  display: flex; align-items: center; gap: 10px; text-align: left;
  background: transparent; border: none; color: var(--sidebar-text);
  padding: 10px 12px; border-radius: 8px; font-size: 13.5px; cursor: pointer;
}
.nav-item:hover { background: rgba(255,255,255,0.06); }
.nav-item.active { background: var(--sidebar-active); color: #fff; }
.nav-ico { width: 18px; text-align: center; }
.user-card { display: flex; align-items: center; gap: 10px; padding: 10px 6px; border-top: 1px solid rgba(255,255,255,0.08); }
.avatar { width: 32px; height: 32px; border-radius: 50%; background: var(--series-1); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 600; }
.user-name { color: #fff; font-size: 13px; font-weight: 500; }
.user-role { color: var(--sidebar-text); font-size: 11px; }

/* ---------- Content ---------- */
.content { flex: 1; padding: 22px 28px 40px; max-width: 1600px; }

.page-header { display: flex; align-items: flex-start; justify-content: space-between; flex-wrap: wrap; gap: 14px; margin-bottom: 18px; }
.page-title { display: flex; align-items: flex-start; gap: 12px; }
.title-icon { background: var(--series-1); color: #fff; width: 34px; height: 34px; border-radius: 9px; display: flex; align-items: center; justify-content: center; font-size: 16px; }
.page-title h1 { font-size: 19px; margin: 0; }
.page-title .subtitle { color: var(--text-secondary); font-size: 13px; margin: 2px 0 0; }
.page-actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }

.project-pill-group { display: inline-flex; gap: 4px; background: var(--surface-1); border: 1px solid var(--border); border-radius: 999px; padding: 3px; }
.project-pill-group .pill { border: none; background: transparent; color: var(--text-secondary); padding: 6px 14px; border-radius: 999px; font-size: 13px; cursor: pointer; }
.project-pill-group .pill.active { background: var(--series-1); color: #fff; }

.dynamic-date-controls { display: flex; align-items: center; gap: 8px; }

.date-range-select, .mini-select {
  border: 1px solid var(--border); background: var(--surface-1); color: var(--text-primary);
  border-radius: 8px; padding: 8px 12px; font-size: 13px;
}
.btn-secondary { border: 1px solid var(--border); background: var(--surface-1); color: var(--text-primary); border-radius: 8px; padding: 8px 16px; font-size: 13px; cursor: pointer; }
.btn-secondary:hover { background: var(--gridline); }

.card, .date-range-panel { background: var(--surface-1); border: 1px solid var(--border); border-radius: 14px; padding: 18px 20px; margin-bottom: 18px; box-shadow: 0 1px 2px rgba(0,0,0,0.03); }
.panel-label { font-size: 14px; margin: 0 0 12px; }
.section-label { font-size: 13px; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.03em; margin: 6px 0 10px; }

.date-range-fields { display: flex; gap: 24px; flex-wrap: wrap; }
.field label { display: block; font-size: 12px; color: var(--text-secondary); margin-bottom: 6px; }
.field-value { border: 1px solid var(--border); border-radius: 8px; padding: 8px 12px; font-size: 13px; min-width: 160px; background: var(--page-plane); }

/* ---------- KPI cards ---------- */
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; margin-bottom: 18px; }
.kpi-card { background: var(--surface-1); border: 1px solid var(--border); border-radius: 14px; padding: 14px 16px; position: relative; overflow: hidden; }
.kpi-icon { width: 34px; height: 34px; border-radius: 9px; display: flex; align-items: center; justify-content: center; font-size: 15px; margin-bottom: 10px; }
.kpi-value { font-size: 22px; font-weight: 700; }
.kpi-label { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }
.kpi-spark { margin-top: 8px; height: 32px; }

/* ---------- Mid grid: trend / donut / utm ---------- */
.mid-grid { display: grid; grid-template-columns: 1.8fr 1fr 1fr; gap: 16px; align-items: stretch; }
@media (max-width: 1100px) { .mid-grid { grid-template-columns: 1fr; } }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 12px; flex-wrap: wrap; }
.card-head h3 { font-size: 14px; margin: 0; }

.donut-wrap { position: relative; width: 150px; height: 150px; margin: 0 auto; }
.donut-center { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.donut-pct { font-size: 20px; font-weight: 700; }
.donut-label { font-size: 11px; color: var(--text-secondary); }
.donut-legend { margin-top: 14px; display: flex; flex-direction: column; gap: 8px; font-size: 12.5px; }
.donut-legend-row { display: flex; align-items: center; justify-content: space-between; }
.legend-dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; margin-right: 7px; }
.donut-total { margin-top: 12px; padding-top: 10px; border-top: 1px solid var(--gridline); display: flex; justify-content: space-between; font-size: 12.5px; color: var(--text-secondary); }

.utm-list { display: flex; flex-direction: column; gap: 10px; }
.utm-row { display: flex; align-items: center; gap: 10px; }
.utm-dot { width: 26px; height: 26px; border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 12px; color: #fff; flex-shrink: 0; }
.utm-name { flex: 1; font-size: 12.5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.utm-count { font-size: 12.5px; font-weight: 600; }

.legend-row { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 8px; font-size: 12px; color: var(--text-secondary); }
.legend-swatch { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 5px; vertical-align: middle; }

/* ---------- Table ---------- */
.table-actions { display: flex; gap: 8px; }
.search-input { border: 1px solid var(--border); background: var(--page-plane); color: var(--text-primary); border-radius: 8px; padding: 7px 12px; font-size: 13px; min-width: 260px; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 12.5px; }
.sheet-table table th, .sheet-table table td { border-bottom: 1px solid var(--gridline); }
th, td { text-align: left; padding: 9px 10px; white-space: nowrap; }
th { color: var(--text-secondary); font-weight: 600; background: var(--page-plane); cursor: pointer; user-select: none; }
th .sort-arrow { font-size: 10px; margin-left: 4px; color: var(--text-muted); }
td.num { text-align: right; font-variant-numeric: tabular-nums; }
tr.row-summary td { background: #fff6db; font-weight: 600; }
tr.row-total td { background: var(--page-plane); font-weight: 700; }
tbody tr:hover td { background: var(--page-plane); }

.pager { display: flex; gap: 10px; align-items: center; margin-top: 12px; font-size: 13px; justify-content: flex-end; }
.pager button { border: 1px solid var(--border); background: var(--surface-1); border-radius: 6px; padding: 4px 10px; cursor: pointer; }
.pager button.active { background: var(--series-1); color: #fff; }
.pager button:disabled { opacity: 0.4; cursor: not-allowed; }

.page-footer { text-align: center; padding: 16px; }
.empty-state { color: var(--text-muted); font-size: 13px; padding: 24px; text-align: center; }