body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #ffffff;
  color: #0f172a;
}

/* Auth page */
.auth-body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: radial-gradient(circle at top, #ffffff 0, #f8fafc 55%, #eef2ff 100%);
}

.auth-container {
  background: #ffffff;
  padding: 24px 28px;
  border-radius: 14px;
  box-shadow: 0 20px 40px rgba(15,23,42,0.10);
  width: 360px;
  border: 1px solid rgba(15,23,42,0.12);
}

.auth-container h1 {
  font-size: 20px;
  margin-bottom: 16px;
  text-align: center;
  font-weight: 800;
}

.tabs {
  display: flex;
  margin-bottom: 16px;
  border-radius: 10px;
  background: #f1f5f9;
  padding: 4px;
  border: 1px solid rgba(15,23,42,0.10);
}

.tab {
  flex: 1;
  border: none;
  background: transparent;
  color: #475569;
  padding: 8px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 800;
}

.tab.active {
  background: #16a34a;
  color: #ffffff;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.auth-form.hidden {
  display: none;
}

.auth-form h2 {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 800;
}

label {
  font-size: 13px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-weight: 700;
  color: #334155;
}

input {
  padding: 9px 10px;
  border-radius: 10px;
  border: 1px solid rgba(15,23,42,0.15);
  background: #ffffff;
  color: #0f172a;
}

input:focus {
  outline: none;
  border-color: rgba(22,163,74,0.6);
  box-shadow: 0 0 0 3px rgba(22,163,74,0.12);
}

button {
  margin-top: 8px;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid rgba(15,23,42,0.12);
  background: #16a34a;
  color: white;
  font-weight: 800;
  cursor: pointer;
}

button:hover {
  background: #15803d;
}

.error {
  color: #dc2626;
  font-size: 12px;
  min-height: 16px;
}

/* Main pages (kept for compatibility) */
.page-body {
  min-height: 100vh;
  background: radial-gradient(circle at top, #ffffff 0, #f8fafc 60%, #eef2ff 100%);
  color: #0f172a;
}

.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid rgba(15,23,42,0.12);
}

.logo {
  font-weight: 800;
  font-size: 16px;
}

.btn-secondary {
  background: #ffffff;
  color: #0f172a;
  border: 1px solid rgba(15,23,42,0.12);
}

.btn-secondary:hover {
  background: rgba(2,6,23,0.03);
}

.page-main {
  max-width: 1100px;
  margin: 24px auto;
  padding: 0 16px 24px;
}

.card {
  background: #ffffff;
  border-radius: 14px;
  padding: 16px 18px;
  box-shadow: 0 16px 32px rgba(15,23,42,0.08);
  border: 1px solid rgba(15,23,42,0.12);
}

.card h2 {
  margin: 0 0 4px;
}

.subtitle {
  margin: 0 0 12px;
  color: #475569;
  font-size: 13px;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.data-table th,
.data-table td {
  border-bottom: 1px solid rgba(15,23,42,0.10);
  padding: 6px 8px;
  text-align: left;
}

.data-table th {
  background: #f8fafc;
  font-weight: 800;
}

.data-table tr:nth-child(even) td {
  background: rgba(2,6,23,0.02);
}

.data-table tr:nth-child(odd) td {
  background: #ffffff;
}

.customer-card {
  margin-bottom: 20px;
}

.small-id {
  font-size: 11px;
  color: #64748b;
  font-weight: 600;
}