* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: #f3f4f6;
    color: #111827;
}
.topbar {
    background: #111827;
    color: #fff;
    padding: 16px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}
.brand { font-weight: 700; font-size: 18px; }
nav a {
    color: #fff;
    text-decoration: none;
    margin-left: 14px;
    font-size: 14px;
}
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 30px 20px;
}
.hero {
    background: #fff;
    border-radius: 16px;
    padding: 28px;
    box-shadow: 0 8px 24px rgba(0,0,0,.06);
    margin-bottom: 24px;
}
.hero h1 { margin-top: 0; }
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 18px;
}
.card {
    display: block;
    background: #fff;
    color: #111827;
    text-decoration: none;
    padding: 22px;
    border-radius: 16px;
    box-shadow: 0 8px 24px rgba(0,0,0,.06);
}
.card:hover { transform: translateY(-2px); }
.table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
}
.table th, .table td {
    padding: 12px;
    border-bottom: 1px solid #e5e7eb;
    text-align: left;
}
.btn {
    display: inline-block;
    background: #111827;
    color: #fff;
    padding: 10px 14px;
    border-radius: 8px;
    text-decoration: none;
    border: 0;
    cursor: pointer;
}
.form-card {
    background: #fff;
    padding: 20px;
    border-radius: 16px;
    box-shadow: 0 8px 24px rgba(0,0,0,.06);
    margin-bottom: 20px;
}
input, select {
    width: 100%;
    padding: 10px;
    margin: 6px 0 14px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
}
.footer {
    text-align: center;
    color: #6b7280;
    padding: 24px;
}