body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: #f3f6fb;
  color: #1f2937;
}

* {
  box-sizing: border-box;
}

:root {
  --admin-bg: #f3f6fb;
  --admin-surface: #ffffff;
  --admin-surface-muted: #eef3f9;
  --admin-border: #d7e0ea;
  --admin-border-strong: #b8c5d4;
  --admin-text: #1f2937;
  --admin-text-soft: #667085;
  --admin-heading: #0f172a;
  --admin-accent: #1d4ed8;
  --admin-accent-strong: #1e40af;
  --admin-sidebar: #0f172a;
  --admin-sidebar-text: #cbd5e1;
  --admin-sidebar-active: #1e293b;
  --admin-success: #0f766e;
  --admin-shadow: 0 18px 45px rgba(15, 23, 42, 0.08);
}

.admin-login-body {
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(29, 78, 216, 0.14), transparent 28%),
    linear-gradient(135deg, #eef4ff 0%, #f8fafc 48%, #e2e8f0 100%);
}

.login-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px;
}

.login-card {
  width: 100%;
  max-width: 520px;
  background: var(--admin-surface);
  border: 1px solid var(--admin-border);
  border-radius: 20px;
  box-shadow: var(--admin-shadow);
}

.login-card-inner {
  padding: 40px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--admin-accent);
  text-transform: uppercase;
  letter-spacing: 1.8px;
  font-size: 11px;
  font-weight: 700;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

.login-card h1,
.admin-sidebar h1,
.admin-header h2,
.panel-card h3 {
  color: var(--admin-heading);
}

.login-copy {
  margin-bottom: 24px;
  line-height: 1.7;
  color: var(--admin-text-soft);
}

.admin-form {
  display: grid;
  gap: 18px;
}

.admin-form label {
  display: grid;
  gap: 8px;
  font-size: 14px;
  font-weight: 700;
  color: var(--admin-text);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.admin-form input,
.admin-form button {
  font: inherit;
}

.admin-form input {
  padding: 14px 16px;
  border: 1px solid var(--admin-border);
  border-radius: 12px;
  background: #fff;
}

.admin-form input:focus {
  outline: 3px solid rgba(29, 78, 216, 0.12);
  border-color: var(--admin-accent);
}

.admin-form button {
  border: none;
  padding: 14px 18px;
  border-radius: 12px;
  background: var(--admin-accent);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease;
}

.admin-form button:hover,
.admin-logout:hover {
  background: var(--admin-accent-strong);
  color: #fff;
  transform: translateY(-1px);
}

.alert {
  margin-bottom: 20px;
  padding: 14px 16px;
  border-left: 4px solid #b42318;
  background: #fef3f2;
  border-radius: 12px;
}

.admin-body {
  min-height: 100vh;
  background: var(--admin-bg);
}

.admin-layout {
  min-height: 100vh;
  display: flex;
}

.admin-sidebar {
  width: 280px;
  padding: 28px 22px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent 30%),
    var(--admin-sidebar);
  color: var(--admin-sidebar-text);
  display: flex;
  flex-direction: column;
  gap: 32px;
  box-shadow: 8px 0 30px rgba(15, 23, 42, 0.14);
}

.admin-brand h1 {
  margin-bottom: 10px;
  color: #f8fafc;
}

.admin-brand-copy {
  margin: 0;
  color: #94a3b8;
  line-height: 1.6;
}

.admin-nav {
  display: grid;
  gap: 10px;
}

.admin-nav a {
  text-decoration: none;
  color: var(--admin-sidebar-text);
  padding: 14px 16px;
  border: 1px solid rgba(148, 163, 184, 0.16);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.02);
  font-weight: 600;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.admin-nav a:hover,
.admin-nav a.active {
  background: var(--admin-sidebar-active);
  border-color: rgba(191, 219, 254, 0.28);
  color: #ffffff;
}

.admin-main {
  flex: 1;
  padding: 32px;
  background:
    radial-gradient(circle at top right, rgba(29, 78, 216, 0.08), transparent 25%),
    var(--admin-bg);
}

.admin-header {
  margin-bottom: 24px;
  padding: 22px 24px;
  border: 1px solid var(--admin-border);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.05);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.admin-header h2 {
  margin-bottom: 8px;
}

.admin-header-copy {
  max-width: 760px;
}

.admin-header-text {
  margin: 0;
  color: var(--admin-text-soft);
  line-height: 1.6;
}

.admin-logout {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 110px;
  padding: 12px 18px;
  border-radius: 12px;
  background: var(--admin-accent);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  white-space: nowrap;
  transition: background 0.2s ease, transform 0.2s ease;
}

.panel-card,
.table-card {
  background: var(--admin-surface);
  border: 1px solid var(--admin-border);
  border-radius: 20px;
  box-shadow: var(--admin-shadow);
}

.panel-card {
  padding: 32px;
}

.section-label {
  margin: 0 0 12px;
  color: var(--admin-success);
  text-transform: uppercase;
  letter-spacing: 1.6px;
  font-size: 11px;
  font-weight: 800;
}

.admin-intro-card {
  display: grid;
  gap: 28px;
}

.status-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.status-card {
  padding: 20px;
  border: 1px solid var(--admin-border);
  border-radius: 16px;
  background: var(--admin-surface-muted);
}

.status-title {
  display: block;
  margin-bottom: 10px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--admin-text-soft);
}

.status-card strong {
  display: block;
  margin-bottom: 8px;
  color: var(--admin-heading);
  font-size: 18px;
}

.status-card p {
  margin: 0;
  color: var(--admin-text-soft);
  line-height: 1.6;
}

.empty-state p {
  margin-bottom: 0;
  color: var(--admin-text-soft);
}

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

.admin-table {
  width: 100%;
  border-collapse: collapse;
}

.admin-table th,
.admin-table td {
  text-align: left;
  padding: 16px;
  vertical-align: top;
  border-bottom: 1px solid var(--admin-border);
}

.admin-table th {
  color: var(--admin-heading);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  background: #eff6ff;
}

.message-cell {
  min-width: 260px;
  line-height: 1.7;
}

@media (max-width: 900px) {
  .admin-layout {
    flex-direction: column;
  }

  .admin-main {
    padding: 24px;
  }

  .admin-sidebar {
    width: 100%;
    padding: 24px;
  }

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

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