:root {
  --bg: #0f172a;
  --panel: #111827;
  --panel-2: #1f2937;
  --text: #e5e7eb;
  --muted: #94a3b8;
  --line: rgba(148, 163, 184, 0.16);
  --accent: #22c55e;
  --accent-2: #38bdf8;
  --danger: #ef4444;
  --warning: #f59e0b;
  --white: #fff;
  --radius: 20px;
  --shadow: 0 20px 50px rgba(0,0,0,.25);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, Arial, sans-serif;
  background: linear-gradient(135deg, #020617 0%, #0f172a 40%, #111827 100%);
  color: var(--text);
}
a { color: inherit; text-decoration: none; }
.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}
.login-wrap { width: 100%; max-width: 460px; }
.glass, .card, .table-card, .stat-card {
  background: rgba(17, 24, 39, .82);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}
.login-card, .card, .table-card {
  border-radius: var(--radius);
  padding: 24px;
}
.hero-icon { font-size: 48px; margin-bottom: 8px; }
.login-card h1 { margin: 0 0 8px; font-size: 30px; }
.login-card p { color: var(--muted); margin-bottom: 24px; }
.app-shell {
  display: grid;
  grid-template-columns: 280px 1fr;
  min-height: 100vh;
}
.sidebar {
  padding: 24px;
  background: rgba(2, 6, 23, .92);
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 24px;
}
.brand { display: flex; gap: 14px; align-items: center; margin-bottom: 28px; }
.brand-badge {
  width: 48px; height: 48px; border-radius: 14px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #052e16; font-weight: 800;
}
.brand small, .sidebar-user span, .hint { color: var(--muted); }
.menu { display: grid; gap: 10px; }
.menu a {
  padding: 12px 14px; border-radius: 14px;
  background: rgba(255,255,255,.03);
  border: 1px solid transparent;
}
.menu a:hover { border-color: var(--line); transform: translateY(-1px); }
.sidebar-user { display: grid; gap: 8px; }
.main-content { padding: 28px; }
.page-header {
  display: flex; justify-content: space-between; align-items: center;
  gap: 16px; margin-bottom: 20px;
}
.page-header h1 { margin: 0 0 6px; font-size: 30px; }
.page-header p { margin: 0; color: var(--muted); }
.badge {
  padding: 10px 14px; border-radius: 999px;
  background: rgba(34,197,94,.12); color: #86efac; border: 1px solid rgba(34,197,94,.2);
}
.grid-form { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.grid-form.two-cols { grid-template-columns: repeat(2, 1fr); }
.field.full, .full { grid-column: 1 / -1; }
.field { display: grid; gap: 8px; }
.field label { font-size: 14px; font-weight: 600; }
.three-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
input, select, button {
  font: inherit;
}
input, select {
  width: 100%;
  padding: 13px 14px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.04);
  color: var(--white);
  outline: none;
}
option { color: #111827; }
input:focus, select:focus { border-color: var(--accent-2); }
.btn {
  border: 0; border-radius: 14px; padding: 12px 16px; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 700;
}
.btn-primary { background: linear-gradient(135deg, var(--accent), #16a34a); color: #052e16; }
.btn-secondary { background: linear-gradient(135deg, var(--accent-2), #0284c7); color: #082f49; }
.btn-dark { background: #0b1220; color: var(--white); }
.btn-light { background: rgba(255,255,255,.06); color: var(--white); border: 1px solid var(--line); }
.alert {
  padding: 14px 16px; border-radius: 16px; margin-bottom: 16px;
  border: 1px solid var(--line);
}
.alert.success { background: rgba(34,197,94,.12); color: #bbf7d0; }
.alert.error { background: rgba(239,68,68,.12); color: #fecaca; }
.promo-cover {
  min-height: 220px;
  background-image: var(--bg);
  background-size: cover;
  background-position: center;
  overflow: hidden;
  margin-bottom: 20px;
}
.cover-overlay {
  min-height: 220px;
  background: linear-gradient(90deg, rgba(2,6,23,.88), rgba(2,6,23,.3));
  padding: 28px;
  display: flex; flex-direction: column; justify-content: flex-end;
}
.invoice-row {
  display: grid;
  grid-template-columns: 1.3fr 1fr 180px 120px;
  gap: 10px;
  margin-bottom: 10px;
}
.row { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; }
.gap-top { margin-top: 10px; }
.total-box {
  padding: 12px 14px; border-radius: 14px; background: rgba(255,255,255,.04); border: 1px solid var(--line);
}
.total-box.ok { border-color: rgba(34,197,94,.35); color: #bbf7d0; }
.table-card { overflow: auto; }
table { width: 100%; border-collapse: collapse; }
th, td {
  padding: 14px 12px; border-bottom: 1px solid var(--line); text-align: left; font-size: 14px;
}
th { color: #cbd5e1; font-size: 12px; letter-spacing: .04em; text-transform: uppercase; }
.toolbar {
  display: flex; gap: 12px; flex-wrap: wrap;
}
.toolbar input { flex: 1; min-width: 240px; }
.stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 20px;
}
.stat-card {
  border-radius: 20px; padding: 22px;
  display: grid; gap: 8px;
}
.stat-card span { color: var(--muted); }
.stat-card strong { font-size: 34px; }
.quick-links { display: flex; flex-wrap: wrap; gap: 12px; }
.checkbox { align-items: end; }
.print-page {
  background: #fff;
  color: #111;
}
.print-wrap { padding: 20px; }
.print-page table, .print-page th, .print-page td { border-color: #d1d5db; color: #111; }
@media print {
  body { background: #fff !important; }
  .print-wrap { padding: 0; }
}
@media (max-width: 1024px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { border-right: 0; border-bottom: 1px solid var(--line); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
  .grid-form, .three-cols, .stats-grid, .invoice-row { grid-template-columns: 1fr; }
  .page-header { flex-direction: column; align-items: start; }
  .main-content { padding: 18px; }
}