:root {
    --primary-color: #4361ee;
    --secondary-color: #3f37c9;
    --success-color: #4cc9f0;
    --error-color: #f72585;
    --warning-color: #f8961e;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --gray-color: #6c757d;
    --border-radius: 8px;
    --box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Poppins', sans-serif;
    background-color: #f5f7fa;
    color: var(--dark-color);
    line-height: 1.6;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    background-image: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.login-container {
    width: 100%;
    max-width: 450px;
}

.login-card {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
    padding: 40px;
    transition: var(--transition);
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header .logo {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: 50%;
    margin-bottom: 15px;
    border: 3px solid var(--primary-color);
}

.login-header h1 {
    font-size: 24px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.login-header p {
    color: var(--gray-color);
    font-size: 14px;
}

.alert {
    padding: 12px 15px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
}

.alert i {
    font-size: 18px;
}

.alert-error {
    background-color: rgba(247, 37, 133, 0.1);
    color: var(--error-color);
    border: 1px solid rgba(247, 37, 133, 0.2);
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 14px;
    font-weight: 500;
    color: var(--dark-color);
}

.input-with-icon {
    position: relative;
}

.input-with-icon i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-color);
    font-size: 16px;
}

.input-with-icon input {
    width: 100%;
    padding: 12px 15px 12px 45px;
    border: 1px solid #e0e0e0;
    border-radius: var(--border-radius);
    font-size: 14px;
    transition: var(--transition);
}

.input-with-icon input:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.2);
}

.toggle-password {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    color: var(--gray-color);
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 14px;
}

.remember-me {
    display: flex;
    align-items: center;
    gap: 5px;
}

.remember-me input {
    accent-color: var(--primary-color);
}

.forgot-password {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

.forgot-password:hover {
    text-decoration: underline;
}

.login-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 12px;
    border-radius: var(--border-radius);
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.login-btn:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
}

.login-btn:active {
    transform: translateY(0);
}

.divider {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--gray-color);
    font-size: 14px;
}

.divider::before, .divider::after {
    content: "";
    flex: 1;
    height: 1px;
    background-color: #e0e0e0;
}

.social-login {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.social-login p {
    color: var(--gray-color);
    font-size: 14px;
}

.social-icons {
    display: flex;
    gap: 15px;
}

.social-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 18px;
    transition: var(--transition);
}

.social-btn.google {
    background-color: #db4437;
}

.social-btn.facebook {
    background-color: #4267b2;
}

.social-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
}

.register-link {
    text-align: center;
    margin-top: 20px;
    font-size: 14px;
    color: var(--gray-color);
}

.register-link a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.register-link a:hover {
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 576px) {
    .login-card {
        padding: 30px 20px;
    }
    
    .login-header .logo {
        width: 70px;
        height: 70px;
    }
    
    .login-header h1 {
        font-size: 22px;
    }
}

@media (max-width: 400px) {
    .form-options {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
}