/* Base styles for light/dark theme */
:root {
  --bg: #f0f2f6;
  --panel: #fafbffe5;
  --text: #111827;
  --muted: #6b7280;
  --border: #797e86d5;
  --primary: #111827;
  --accent: #0f172a;
}

[data-theme="dark"] {
  --bg: #0b1220;
  --panel: #111827;
  --text: #f5f5f5;
  --muted: #d1d5db;
  --border: #1f2937;
  --primary: #f5f5f5;
  --accent: #4b5563;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
}

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

.layout { display: grid; grid-template-columns: 240px 1fr; min-height: 100vh; }
.sidebar {
  background: var(--panel);
  border-right: 1px solid var(--border);
  padding: 20px;
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.brand { font-weight: 700; font-size: 18px; margin-bottom: 12px; }
.sidebar nav { display: flex; flex-direction: column; gap: 6px; }
.sidebar a { padding: 8px 10px; border-radius: 8px; color: var(--text); }
.sidebar a.active, .sidebar a:hover { background: var(--border); text-decoration: none; }
.nav-section { margin-top: 10px; font-size: 12px; text-transform: uppercase; color: var(--muted); letter-spacing: .08em; }

.main { display: flex; flex-direction: column; }
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}
.subtitle { color: var(--muted); margin-top: 4px; }
.topbar-actions { display: flex; align-items: center; gap: 12px; }
.user-info { font-size: 12px; line-height: 1.4; }
.muted { color: var(--muted); }
.ghost-btn {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  padding: 8px 10px;
  border-radius: 8px;
  cursor: pointer;
}
.ghost-btn:hover { background: var(--border); }

.content { padding: 20px 24px 32px; display: flex; flex-direction: column; gap: 16px; }
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
}
.card h2 { margin: 0 0 8px; }
.grid { display: grid; gap: 12px; }
.grid.two { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.grid.three { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }

table { width: 100%; border-collapse: collapse; }
th, td { padding: 10px 8px; border-bottom: 1px solid var(--border); text-align: left; }
th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .05em; }
tr:last-child td { border-bottom: none; }

input, select, textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel);
  color: var(--text);
}
label { font-weight: 600; font-size: 13px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }

.btn {
  border: none;
  background: var(--primary);
  color: #f5f5f5;
  padding: 10px 14px;
  border-radius: 10px;
  cursor: pointer;
}
.btn.secondary { background: var(--accent); color: #e5e7eb; }
.btn.danger { background: #b91c1c; }
.btn:disabled { opacity: .7; cursor: not-allowed; }

[data-theme="dark"] .btn {
  color: #111827;
}

.flex { display: flex; gap: 8px; align-items: center; }
.flex-between { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.tag { padding: 4px 8px; border-radius: 999px; background: var(--border); font-size: 12px; }

.table-actions { display: flex; gap: 8px; }
.alert { padding: 10px 12px; border-radius: 8px; }
.alert.error { background: #fef2f2; color: #991b1b; border: 1px solid #fee2e2; }
.alert.success { background: #ecfdf3; color: #166534; border: 1px solid #bbf7d0; }
.alert.info { background: #eff6ff; color: #1d4ed8; border: 1px solid #dbeafe; }

.totals { display: flex; gap: 10px; flex-wrap: wrap; }
.totals .pill {
  background: var(--border);
  padding: 8px 12px;
  border-radius: 999px;
  font-weight: 600;
}

.footer-actions { display: flex; gap: 8px; flex-wrap: wrap; }

.login-container { max-width: 420px; margin: 80px auto; }