:root {
  --bg: #f5f6f8;
  --panel: #ffffff;
  --border: #e3e6ea;
  --ink: #111827;
  --muted: #6b7280;
  --accent: #0b5f4b;
  --danger: #b42318;
  --shadow: 0 12px 32px rgba(15, 23, 42, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Space Grotesk", "IBM Plex Sans", "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--ink);
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

.admin-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  min-height: 100vh;
}

.sidebar {
  background: #0e1f18;
  color: #f7f7f2;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.brand span {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: rgba(247, 247, 242, 0.65);
}

.brand strong {
  display: block;
  font-size: 1.2rem;
  margin-top: 6px;
}

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

.nav-link {
  padding: 10px 14px;
  border-radius: 12px;
  background: transparent;
  color: inherit;
}

.nav-link.active,
.nav-link:hover {
  background: rgba(255, 255, 255, 0.12);
}

.admin-main {
  display: flex;
  flex-direction: column;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 16px;
  padding: 20px 32px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}

.admin-content {
  padding: 28px 32px;
}

.admin-auth {
  max-width: 420px;
  margin: 80px auto;
  padding: 0 24px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 22px;
  box-shadow: var(--shadow);
  margin-bottom: 24px;
}

.auth-card {
  text-align: left;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.summary-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
  box-shadow: var(--shadow);
  display: grid;
  gap: 6px;
}

.summary-card strong {
  font-size: 1.4rem;
}

.form-grid {
  display: grid;
  gap: 12px;
}

.form-grid label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 0.9rem;
}

.form-grid button.button {
  width: 100%;
}

input,
select,
textarea {
  width: 100%;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  font-family: inherit;
  font-size: 1rem;
  background: #fff;
  min-height: 44px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #fff;
  font-weight: 600;
  cursor: pointer;
  min-height: 44px;
}

.button.primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.button.ghost {
  background: transparent;
}

.button.danger {
  background: #fee4e2;
  color: var(--danger);
  border-color: #fca5a5;
}

.search-form {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

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

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

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.table th,
.table td {
  padding: 12px 10px;
  border-bottom: 1px solid var(--border);
  text-align: left;
}

.table th {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-size: 0.75rem;
}

.alert {
  background: #fff3c4;
  border: 1px solid #facc15;
  color: #7a5800;
  padding: 12px 16px;
  border-radius: 12px;
  margin-bottom: 16px;
}

.muted {
  color: var(--muted);
}

.quick-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.cap {
  text-transform: capitalize;
}

@media (max-width: 960px) {
  .admin-layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    padding: 16px;
    gap: 16px;
  }

  .sidebar-nav {
    grid-auto-flow: column;
    grid-auto-columns: max-content;
    gap: 12px;
    overflow-x: auto;
  }

  .topbar {
    justify-content: space-between;
  }
}

@media (max-width: 640px) {
  .admin-content {
    padding: 18px;
  }

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

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

  .sidebar-nav {
    grid-auto-flow: row;
  }

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

  .search-form,
  .inline-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .table th,
  .table td {
    padding: 10px 6px;
    font-size: 0.85rem;
  }
}