:root {
  --primary: #6d5dfc;
  --primary-light: #a79fff;
  --accent: #f4f0ff;
  --text: #1a1a1a;
  --muted: #666;
  --bg: #fafafa;
  --border: rgba(0,0,0,.08);
}

body {
  font-family: 'Poppins', sans-serif;
  background: var(--bg);
  color: var(--text);
  margin: 0;
  padding: 0;
}

header.topbar {
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  color: #fff;
  padding: 12px 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 2px 6px rgba(0,0,0,.1);
  position: sticky;
  top: 0;
  z-index: 10;
}

header .brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
header .brand img.logo {
  height: 46px;
}
header .brand strong {
  font-size: 1.2rem;
}
header .user a {
  color: #fff;
  background: rgba(255,255,255,.2);
  padding: 6px 12px;
  border-radius: 8px;
  text-decoration: none;
}

main {
  padding: 25px;
  max-width: 1200px;
  margin: auto;
}

.card {
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 3px 12px rgba(0,0,0,.08);
  padding: 25px;
  margin-bottom: 25px;
}

.card h2 {
  margin-top: 0;
  color: var(--primary);
}

input, select, textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
  margin-bottom: 12px;
  font-size: 15px;
}

.btn {
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  color: #fff;
  border: 0;
  padding: 10px 16px;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 600;
  transition: all .2s ease;
}
.btn:hover {
  transform: scale(1.02);
  box-shadow: 0 4px 10px rgba(109,93,252,.2);
}
.btn-ghost {
  background: #fff;
  border: 1px solid var(--primary);
  color: var(--primary);
  padding: 8px 14px;
  border-radius: 10px;
  cursor: pointer;
}

table {
  width: 100%;
  border-collapse: collapse;
}
th, td {
  padding: 10px;
  border-bottom: 1px solid var(--border);
}
th {
  background: var(--accent);
  text-align: left;
}

.flash {
  padding: 12px 15px;
  border-radius: 10px;
  margin-bottom: 15px;
}
.flash.success {
  background: #d1fae5;
  color: #065f46;
}
.flash.error {
  background: #fee2e2;
  color: #991b1b;
}