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

body {
    font-family: 'Roboto', sans-serif;
    background: #e6f0ff; /* Light blue background */
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #333;
}

.login-container {
    width: 100%;
    max-width: 420px;
    padding: 20px;
}

.login-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(0, 100, 200, 0.1);
    animation: fadeIn 0.6s ease-out;
    border: 1px solid #d0e0ff;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(三0); }
}

.logo {
    background: linear-gradient(135deg, #4da6ff, #3399ff); /* Light blue gradient */
    color: white;
    text-align: center;
    padding: 32px 20px;
}

.logo-icon {
    width: 60px;
    height: 60px;
    background: rgba(255,255,255,0.25);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 24px;
    margin: 0 auto 16px;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255,255,255,0.3);
}

.logo h1 {
    font-size: 22px;
    margin-bottom: 6px;
    font-weight: 500;
    letter-spacing: 0.5px;
}

.logo p {
    font-size: 13px;
    opacity: 0.9;
    font-weight: 400;
}

.login-form {
    padding: 32px 28px 24px;
}

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

.input-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #2c3e50;
    font-size: 14px;
}

.input-group input {
    width: 100%;
    padding: 13px 14px;
    border: 1px solid #b3d4fc;
    border-radius: 8px;
    font-size: 16px;
    background-color: #f8fbff;
    transition: all 0.3s;
}

.input-group input:focus {
    outline: none;
    border-color: #4da6ff;
    background-color: white;
    box-shadow: 0 0 0 3px rgba(77, 166, 255, 0.2);
}

.btn-primary {
    width: 100%;
    padding: 14px;
    background: #4da6ff;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    margin-top: 8px;
    box-shadow: 0 2px 6px rgba(77, 166, 255, 0.3);
}

.btn-primary:hover {
    background: #3399ff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(77, 166, 255, 0.4);
}

.alert {
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 14px;
    text-align: center;
    border: 1px solid #ffcdd2;
}

.alert.error {
    background: #ffebee;
    color: #c62828;
}

.footer-links {
    display: flex;
    justify-content: space-between;
    padding: 0 28px;
    margin-bottom: 16px;
}

.footer-links a {
    color: #4da6ff;
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
}

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

.security-note {
    text-align: center;
    padding: 16px 28px;
    background: #f0f7ff;
    font-size: 11px;
    color: #555;
    border-top: 1px solid #d0e0ff;
}