* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: #0b0f19;
  color: #f5f7fb;
  font-family: Arial, sans-serif;
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 270px;
  background: #111827;
  border-right: 1px solid #1f2937;
  padding: 24px;
}

.brand {
  display: flex;
  gap: 14px;
  align-items: center;
  margin-bottom: 36px;
}

.logo {
  width: 46px;
  height: 46px;
  background: #2563eb;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-weight: 800;
}

.brand h1 {
  margin: 0;
  font-size: 18px;
}

.brand p {
  margin: 4px 0 0;
  color: #9ca3af;
  font-size: 13px;
}

nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

nav a {
  padding: 12px 14px;
  border-radius: 10px;
  color: #cbd5e1;
  cursor: pointer;
}

nav a.active,
nav a:hover {
  background: #1f2937;
  color: white;
}

.main {
  flex: 1;
  padding: 32px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 32px;
}

.topbar h2 {
  margin: 0;
  font-size: 30px;
}

.topbar p {
  margin: 6px 0 0;
  color: #9ca3af;
}

.user-box {
  background: #111827;
  border: 1px solid #1f2937;
  padding: 12px 16px;
  border-radius: 12px;
  color: #cbd5e1;
}

.cards {
  display: grid;
  grid-template-columns: repeat(4, minmax(180px, 1fr));
  gap: 18px;
  margin-bottom: 24px;
}

.card,
.panel,
.module,
.login {
  background: #111827;
  border: 1px solid #1f2937;
  border-radius: 18px;
}

.card {
  padding: 22px;
}

.card span {
  color: #60a5fa;
  font-size: 13px;
  font-weight: 700;
}

.card h3 {
  margin: 12px 0 8px;
  font-size: 22px;
}

.card p {
  color: #9ca3af;
  margin: 0;
  font-size: 14px;
}

.panel {
  padding: 24px;
}

.panel h3 {
  margin-top: 0;
}

.module-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(250px, 1fr));
  gap: 16px;
}

.module {
  padding: 20px;
}

.module h4 {
  margin: 0 0 8px;
}

.module p {
  color: #9ca3af;
}

button,
.btn {
  display: inline-block;
  border: 0;
  background: #2563eb;
  color: white;
  padding: 10px 14px;
  border-radius: 10px;
  text-decoration: none;
  cursor: pointer;
}

.login {
  max-width: 500px;
  padding: 32px;
}

.hidden {
  display: none;
}

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

  .sidebar {
    width: 100%;
  }

  .cards,
  .module-grid {
    grid-template-columns: 1fr;
  }
}
table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 16px;
}

th, td {
  text-align: left;
  padding: 14px;
  border-bottom: 1px solid #1f2937;
  vertical-align: top;
}

th {
  color: #93c5fd;
  font-size: 13px;
}

.form-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

input, select {
  background: #0b0f19;
  color: white;
  border: 1px solid #1f2937;
  border-radius: 10px;
  padding: 11px 12px;
}

.alert-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #1f2937;
  border: 1px solid #334155;
  padding: 8px 10px;
  border-radius: 999px;
  margin: 4px;
}

.alert-chip button {
  background: #ef4444;
  padding: 2px 8px;
  border-radius: 999px;
}