:root {
  color-scheme: dark;
  --bg: #07111f;
  --panel: #0f172a;
  --panel-2: #111c32;
  --text: #f8fafc;
  --muted: #94a3b8;
  --accent: #3b82f6;
  --accent-2: #14b8a6;
  --border: rgba(255, 255, 255, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: linear-gradient(135deg, var(--bg), var(--panel));
  color: var(--text);
}

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

.app-shell {
  display: grid;
  grid-template-columns: 280px 1fr;
  min-height: 100vh;
}

.sidebar {
  background: rgba(2, 6, 23, 0.8);
  border-right: 1px solid var(--border);
  padding: 24px 18px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.brand {
  display: flex;
  gap: 12px;
  align-items: center;
}

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  font-size: 1.2rem;
  font-weight: 700;
}

.brand h1,
.brand p,
.section-head h3,
.card h3,
.card h4 {
  margin: 0;
}

.brand p,
.muted,
.eyebrow {
  color: var(--muted);
}

.nav-links {
  display: grid;
  gap: 8px;
}

.nav-btn {
  border: 0;
  text-align: left;
  border-radius: 12px;
  padding: 12px 14px;
  background: transparent;
  color: var(--text);
  cursor: pointer;
}

.nav-btn.active {
  background: var(--accent);
}

.sidebar-card,
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 18px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}

.content {
  padding: 24px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
}

.topbar-actions {
  display: flex;
  gap: 10px;
}

.section {
  display: none;
}

.section.active-section {
  display: block;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.hero-form,
.settings-panel,
.export-panel {
  display: grid;
  gap: 10px;
}

label {
  display: grid;
  gap: 6px;
  font-size: 0.95rem;
  color: var(--muted);
}

input,
select,
textarea {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  padding: 10px 12px;
}

textarea {
  resize: vertical;
}

.primary-btn,
.secondary-btn {
  border: 0;
  padding: 10px 14px;
  border-radius: 999px;
  cursor: pointer;
}

.primary-btn {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: white;
}

.secondary-btn {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
}

.form-actions,
.inline-stats,
.filters,
.export-grid,
.settings-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.inline-stats > div,
.stat-card,
.chart-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px;
}

.summary-grid,
.stats-grid,
.charts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.stat-card strong,
.inline-stats strong {
  display: block;
  font-size: 1.15rem;
  margin-top: 4px;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 12px;
}

th,
td {
  padding: 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.action-btn {
  border: 0;
  border-radius: 999px;
  padding: 6px 10px;
  margin-right: 6px;
  cursor: pointer;
  color: white;
}

.edit-btn {
  background: var(--accent);
}

.delete-btn {
  background: #ef4444;
}

.chart-bars {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  min-height: 180px;
  margin-top: 10px;
}

.chart-bar-wrap {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.chart-bar {
  width: 100%;
  border-radius: 8px 8px 2px 2px;
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
  min-height: 8px;
}

.logo-preview {
  min-height: 120px;
  border: 1px dashed var(--border);
  border-radius: 14px;
  display: grid;
  place-items: center;
  padding: 10px;
  background: rgba(255, 255, 255, 0.04);
}

.logo-preview img {
  max-width: 100%;
  max-height: 120px;
  object-fit: contain;
}

@media (max-width: 900px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .hero-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .content {
    padding: 14px;
  }

  .topbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
}