.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 60vh;
    padding: 40px 20px;
}
.login-box {
    background: #fff;
    border-radius: 20px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    padding: 40px;
    width: 100%;
    max-width: 450px;
    transition: all 0.3s ease;
}
.login-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}
.login-title {
    color: #333;
    font-size: 28px;
    font-weight: 600;
    text-align: center;
    margin-bottom: 30px;
}
.login-form .form-group {
    margin-bottom: 25px;
}
.input-group {
    position: relative;
    display: flex;
    align-items: center;
}
.input-icon {
    position: absolute;
    left: 15px;
    color: #666;
    font-size: 18px;
}
.login-input {
    width: 100%;
    padding: 15px 15px 15px 45px;
    border: 2px solid #e1e1e1;
    border-radius: 10px;
    font-size: 16px;
    transition: all 0.3s ease;
    background: #f8f9fa;
}
.login-input:focus {
    border-color: #D10024;
    box-shadow: 0 0 0 3px rgba(209, 0, 36, 0.1);
    outline: none;
}
.login-btn {
    width: 100%;
    padding: 15px;
    background: #D10024;
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
}
.login-btn:hover {
    background: #b3001f;
    transform: translateY(-2px);
}
.login-btn i {
    transition: transform 0.3s ease;
}
.login-btn:hover i {
    transform: translateX(5px);
}
.register-link {
    text-align: center;
    margin-top: 25px;
    color: #666;
}
.register-link a {
    color: #D10024;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}
.register-link a:hover {
    color: #b3001f;
}
.alert {
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 20px;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
    animation: slideIn 0.3s ease-out;
}
.alert-success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}
.alert-danger {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}
.alert i {
    font-size: 16px;
}
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
@media (max-width: 576px) {
    .login-box {
        padding: 30px 20px;
    }
    .login-title {
        font-size: 24px;
    }
    .login-input {
        padding: 12px 12px 12px 40px;
        font-size: 14px;
    }
    .login-btn {
        padding: 12px;
        font-size: 14px;
    }
}