* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    height: 100vh;
}

.login-body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.login-container {
    background: white;
    border-radius: 15px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    padding: 40px;
    width: 100%;
    max-width: 450px;
    text-align: center;
}

.login-header h1 {
    color: #2c3e50;
    font-size: 2.5em;
    margin-bottom: 10px;
    font-weight: 300;
}

.login-header h2 {
    color: #34495e;
    font-size: 1.2em;
    margin-bottom: 5px;
    font-weight: 400;
}

.system-info {
    color: #7f8c8d;
    font-size: 0.8em;
    margin-bottom: 30px;
    font-style: italic;
}

.login-form-container {
    margin: 30px 0;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #2c3e50;
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #ecf0f1;
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.3s;
}

.form-group input:focus {
    outline: none;
    border-color: #3498db;
}

.login-btn {
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    cursor: pointer;
    transition: transform 0.2s;
}

.login-btn:hover {
    transform: translateY(-2px);
}

.login-links {
    margin-top: 20px;
}

.login-links a {
    color: #3498db;
    text-decoration: none;
    font-size: 14px;
}

.login-links a:hover {
    text-decoration: underline;
}

.login-footer {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #ecf0f1;
}

.login-footer p {
    color: #7f8c8d;
    font-size: 0.8em;
}

/* Modal styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
}

.modal-content {
    background-color: white;
    margin: 15% auto;
    padding: 30px;
    border-radius: 10px;
    width: 90%;
    max-width: 500px;
    position: relative;
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.close:hover {
    color: #000;
}

.query-result {
    margin-top: 20px;
    padding: 15px;
    border-radius: 5px;
    display: none;
}

.btn {
    padding: 10px 20px;
    background: #3498db;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

.btn:hover {
    background: #2980b9;
}