@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Outfit:wght@600;700&display=swap');

:root {
  --bg: #0f1419;
  --bg-elevated: #1a222d;
  --bg-soft: #243041;
  --border: rgba(255, 255, 255, 0.08);
  --text: #e8eef6;
  --muted: #8b9bb0;
  --accent: #2dd4bf;
  --accent-dim: rgba(45, 212, 191, 0.15);
  --ads: #f59e0b;
  --organic: #38bdf8;
  --danger: #f87171;
  --radius: 14px;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
  --font: 'DM Sans', sans-serif;
  --display: 'Outfit', 'DM Sans', sans-serif;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  min-height: 100%;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 0% -10%, rgba(45, 212, 191, 0.12), transparent 55%),
    radial-gradient(900px 500px at 110% 100%, rgba(56, 189, 248, 0.1), transparent 50%),
    linear-gradient(165deg, #0c1117 0%, #121a24 45%, #0f1419 100%);
}

a {
  color: var(--accent);
  text-decoration: none;
}

button, input, select {
  font-family: inherit;
}

.shell {
  max-width: 1180px;
  margin: 0 auto;
  padding: 24px 20px 48px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand strong {
  font-family: var(--display);
  font-size: 1.45rem;
  letter-spacing: -0.03em;
}

.brand span {
  color: var(--muted);
  font-size: 0.85rem;
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.82rem;
}

.btn {
  appearance: none;
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 10px 16px;
  font-weight: 600;
  cursor: pointer;
  transition: 0.15s ease;
}

.btn-primary {
  background: var(--accent);
  color: #042f2e;
}

.btn-primary:hover {
  filter: brightness(1.05);
}

.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}

.btn-ghost:hover {
  background: var(--bg-soft);
}

.panel {
  background: color-mix(in srgb, var(--bg-elevated) 88%, transparent);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.panel-pad {
  padding: 22px;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 18px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.stat {
  padding: 18px;
  border-radius: var(--radius);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
}

.stat .label {
  color: var(--muted);
  font-size: 0.85rem;
  margin-bottom: 8px;
}

.stat .value {
  font-family: var(--display);
  font-size: 1.55rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.stat .hint {
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.8rem;
}

.stat.ads .value { color: var(--ads); }
.stat.organic .value { color: var(--organic); }

.section-title {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.section-title h2 {
  margin: 0;
  font-family: var(--display);
  font-size: 1.1rem;
}

.section-title p {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: end;
  margin-bottom: 18px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 140px;
}

.field label {
  font-size: 0.8rem;
  color: var(--muted);
}

.field input,
.field select {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 10px;
  padding: 10px 12px;
  outline: none;
}

.field input:focus,
.field select:focus {
  border-color: color-mix(in srgb, var(--accent) 55%, var(--border));
}

.chart-box {
  position: relative;
  min-height: 280px;
}

.chart-box.sm {
  min-height: 240px;
}

.alert {
  padding: 12px 14px;
  border-radius: 10px;
  margin-bottom: 14px;
  font-size: 0.9rem;
}

.alert-error {
  background: rgba(248, 113, 113, 0.12);
  border: 1px solid rgba(248, 113, 113, 0.35);
  color: #fecaca;
}

.alert-ok {
  background: var(--accent-dim);
  border: 1px solid rgba(45, 212, 191, 0.35);
  color: #99f6e4;
}

.login-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.login-card {
  width: min(420px, 100%);
  padding: 28px;
}

.login-card h1 {
  margin: 0 0 6px;
  font-family: var(--display);
  font-size: 1.75rem;
  letter-spacing: -0.03em;
}

.login-card .subtitle {
  margin: 0 0 24px;
  color: var(--muted);
}

.login-card .field {
  margin-bottom: 14px;
}

.login-card .btn {
  width: 100%;
  margin-top: 8px;
}

.hint-box {
  margin-top: 18px;
  padding: 12px;
  border-radius: 10px;
  background: var(--bg);
  border: 1px dashed var(--border);
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.7;
}

.range-row {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 18px 0;
}

.range-row input[type="range"] {
  flex: 1;
  accent-color: var(--accent);
}

.split-preview {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 8px;
}

.split-pill {
  padding: 14px;
  border-radius: 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  text-align: center;
}

.split-pill strong {
  display: block;
  font-family: var(--display);
  font-size: 1.4rem;
  margin-top: 4px;
}

.split-pill.ads strong { color: var(--ads); }
.split-pill.organic strong { color: var(--organic); }

.muted { color: var(--muted); }
.hidden { display: none !important; }

.btn-sm {
  padding: 7px 12px;
  font-size: 0.82rem;
}

.preset-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.period-meta {
  margin: 4px 0 16px;
  font-size: 0.86rem;
}

.insight-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.insight-item {
  padding: 12px 14px;
  border-radius: 12px;
  background: var(--bg);
  border: 1px solid var(--border);
}

.insight-label {
  color: var(--muted);
  font-size: 0.78rem;
  margin-bottom: 4px;
}

.insight-value {
  font-family: var(--display);
  font-weight: 600;
  font-size: 0.98rem;
}

.insight-hint {
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.78rem;
}

.table-wrap {
  overflow-x: auto;
  border-radius: 12px;
  border: 1px solid var(--border);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.data-table th,
.data-table td {
  padding: 11px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.data-table th {
  color: var(--muted);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: rgba(0, 0, 0, 0.18);
}

.data-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.03);
}

.data-table tfoot td {
  background: rgba(45, 212, 191, 0.06);
  border-bottom: none;
}

.cell-sub {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 400;
  margin-top: 2px;
}

.col-ads { color: var(--ads); }
.col-org { color: var(--organic); }

@media (max-width: 900px) {
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }

  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }
}