:root {
    --primary: #0056b3;
    --secondary: #008080;
    --light-bg: #f4f6f9;
    --dark-text: #212529;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--light-bg);
    color: var(--dark-text);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.header-banner {
    background: white;
    border-bottom: 4px solid var(--primary);
    padding: 15px 20px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.header-container {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.brand {
    display: flex;
    align-items: center;
    gap: 15px;
}

.brand img {
    height: 100px;
}

.brand h1 {
    font-size: 1.2rem;
    color: var(--primary);
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
}

.user-menu a {
    color: var(--primary);
    text-decoration: none;
}

.user-menu a:hover {
    text-decoration: underline;
}

main {
    flex: 1;
    max-width: 1100px;
    width: 100%;
    margin: 20px auto;
    padding: 0 15px;
}

.card {
    background: white;
    border-radius: 8px;
    padding: 25px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    margin-bottom: 20px;
}

form {
    display: grid;
    gap: 15px;
    grid-template-columns: 1fr;
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.grid-3 {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 15px;
}

@media (max-width: 768px) {

    .grid-2,
    .grid-3 {
        grid-template-columns: 1fr;
    }
}

label {
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 5px;
    display: block;
}

input,
select,
textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

.btn {
    background: var(--primary);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 4px;
    cursor: pointer;
    text-decoration: none;
    text-align: center;
    font-weight: bold;
    display: inline-block;
}

.btn-success {
    background: #28a745;
}

.btn-secondary {
    background: #6c757d;
}

.btn-warning {
    background: #ffc107;
    color: #212529;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
}

th,
td {
    padding: 12px;
    border: 1px solid #dee2e6;
    text-align: left;
    font-size: 0.9rem;
}

th {
    background-color: #e9ecef;
}

.badge {
    padding: 4px 8px;
    border-radius: 4px;
    color: white;
    font-weight: bold;
    font-size: 0.8rem;
}

footer {
    background: #1b2a4a;
    color: white;
    text-align: center;
    padding: 20px;
    margin-top: auto;
    font-size: 0.85rem;
}