:root {
    --primary-blue: #1a4f8b;
    --secondary-blue: #3a7bb8;
    --light-blue: #e6f0fa;
    --dark-blue: #0a2d52;
    --accent-blue: #5c9bd1;
}

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

body {
    background-color: #f8f9fa;
    color: #333;
    line-height: 1.6;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
.header {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    color: white;
    padding: 1.5rem 0;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 60px;
    margin-right: 15px;
}

.logo h1 {
    font-size: 1.8rem;
    font-weight: 600;
}

/* Navigation */
.nav {
    background-color: var(--dark-blue);
    padding: 0.5rem 0;
}

.nav ul {
    display: flex;
    list-style: none;
    justify-content: center;
}

.nav li {
    margin: 0 15px;
}

.nav a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    padding: 5px 10px;
    border-radius: 4px;
    transition: background-color 0.3s;
}

.nav a:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* Table Styles */
.table-container {
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    margin: 2rem 0;
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 800px;
}

th,
td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #e0e0e0;
}

th {
    background-color: var(--light-blue);
    color: var(--primary-blue);
    font-weight: 600;
}

tr:hover {
    background-color: #f5f9ff;
}

/* Summary Section */
.summary {
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 20px;
    margin: 2rem 0;
}

.summary h2 {
    color: var(--primary-blue);
    margin-bottom: 15px;
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 15px;
}

.summary-item {
    background-color: var(--light-blue);
    padding: 15px;
    border-radius: 6px;
    text-align: center;
}

.summary-item h3 {
    color: var(--dark-blue);
    margin-bottom: 5px;
    font-size: 1rem;
}

.summary-item p {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-blue);
}

/* Form Styles */
.form-container {
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 25px;
    margin: 2rem auto;
    max-width: 800px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--dark-blue);
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 2px rgba(92, 155, 209, 0.2);
}

.btn {
    display: inline-block;
    background-color: var(--primary-blue);
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: background-color 0.3s;
}

.btn:hover {
    background-color: var(--secondary-blue);
}

.btn-danger {
    background-color: #dc3545;
}

.btn-danger:hover {
    background-color: #c82333;
}

/* Search Bar */
.search-container {
    margin: 20px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.search-form {
    display: flex;
    width: 100%;
    max-width: 400px;
}

.search-form input {
    flex: 1;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px 0 0 4px;
}

.search-form button {
    background-color: var(--primary-blue);
    color: white;
    border: none;
    padding: 10px 15px;
    border-radius: 0 4px 4px 0;
    cursor: pointer;
}

/* Login Form */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
}

.login-form {
    background-color: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    width: 100%;
    max-width: 400px;
}

.login-form h2 {
    text-align: center;
    color: var(--primary-blue);
    margin-bottom: 20px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        text-align: center;
    }

    .logo {
        margin-bottom: 15px;
        justify-content: center;
    }

    .nav ul {
        flex-direction: column;
        align-items: center;
    }

    .nav li {
        margin: 5px 0;
    }

    .summary-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 480px) {
    .summary-grid {
        grid-template-columns: 1fr;
    }

    .form-container {
        padding: 15px;
    }
}