:root {
  --bg: #f4f6fb;
  --card: #ffffff;
  --accent: #2563eb;
  --accent-2: #0ea5e9;
  --text: #0f172a;
  --muted: #475569;
  --border: #e2e8f0;
  --radius: 14px;
  --shadow: 0 8px 26px rgba(15, 23, 42, 0.1);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: radial-gradient(circle at 20% 20%, rgba(37, 99, 235, 0.12), transparent 32%),
              radial-gradient(circle at 80% 0%, rgba(14, 165, 233, 0.1), transparent 30%),
              var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 12px 18px;
}

.layout {
  width: 100%;
  max-width: 1080px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
  align-items: stretch;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  background: #e0e7ff;
  color: #1d4ed8;
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.2px;
}

h1 {
  margin: 16px 0 10px;
  font-size: 32px;
  letter-spacing: -0.5px;
  color: var(--text);
}

p {
  color: var(--muted);
  line-height: 1.6;
  margin: 10px 0 18px;
}

.actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.btn {
  border: none;
  border-radius: 10px;
  padding: 12px 18px;
  font-weight: 700;
  letter-spacing: 0.1px;
  cursor: pointer;
  transition: transform 0.1s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn.primary {
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  color: #ffffff;
  box-shadow: 0 8px 22px rgba(37, 99, 235, 0.25);
}

.btn.secondary {
  background: #f8fafc;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn:hover {
  transform: translateY(-1px);
}

.login-card {
  max-width: 440px;
  margin: 0 auto;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}

.field label {
  font-weight: 600;
  color: var(--text);
}

.field input, .field select {
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #f8fafc;
  color: var(--text);
  font-size: 15px;
}

.field input:focus, .field select:focus {
  outline: 2px solid rgba(79, 70, 229, 0.6);
  outline-offset: 1px;
  border-color: transparent;
}

.error {
  color: #b91c1c;
  font-size: 13px;
  min-height: 18px;
}

.helper {
  color: var(--muted);
  font-size: 13px;
}

.page {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 260px 1fr;
  background: var(--bg);
}

.sidebar {
  border-right: 1px solid var(--border);
  background: #e9eef6;
  padding: 20px;
  position: sticky;
  top: 0;
  height: 100vh;
}

.brand {
  font-weight: 800;
  letter-spacing: -0.3px;
  margin-bottom: 18px;
  color: var(--text);
}

.nav {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.nav a {
  color: var(--text);
  text-decoration: none;
  padding: 10px 12px;
  border-radius: 10px;
  display: block;
  transition: background 0.2s ease;
}

.nav a:hover,
.nav a.active {
  background: rgba(37, 99, 235, 0.12);
}

.content {
  padding: 12px 24px 24px;
}

.content .card {
  height: fit-content;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.userpill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: #f8fafc;
  border: 1px solid var(--border);
}

.menu-toggle {
  display: none;
  background: #f8fafc;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 12px;
  border-radius: 10px;
  cursor: pointer;
}

table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.06);
}

table th,
table td {
  padding: 12px 14px;
  font-size: 14px;
  border-bottom: 1px solid var(--border);
}

table thead th {
  background: #f8fafc;
  color: var(--muted);
  font-weight: 700;
  letter-spacing: 0.2px;
  border-bottom: 1px solid var(--border);
}

table tbody tr:hover {
  background: #f1f5f9;
}

@media (max-width: 900px) {
  .page {
    grid-template-columns: 1fr;
  }
  .sidebar {
    position: fixed;
    z-index: 10;
    width: 240px;
    left: -260px;
    top: 0;
    height: 100%;
    transition: left 0.2s ease;
  }
  .sidebar.open {
    left: 0;
  }
  .content {
    padding: 12px 16px 20px;
  }
  .topbar {
    position: sticky;
    top: 0;
    padding: 10px 0;
    background: linear-gradient(180deg, rgba(244, 246, 251, 0.96), rgba(244, 246, 251, 0.9));
    z-index: 5;
  }
  .menu-toggle {
    display: inline-flex;
    align-items: center;
    gap: 6px;
  }
}