.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-light), var(--primary-dark));
    padding: var(--spacing-md);
}

.login-card {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 480px;
    padding: var(--spacing-xl);
    animation: fadeIn 0.5s ease-out;
}

.login-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.login-header .logo {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.login-header h1 {
    font-size: 1.75rem;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.login-header p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.9rem;
}

.form-group input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(36, 123, 160, 0.1);
}

.form-group input:invalid {
    border-color: var(--error);
}

.form-group input:invalid + .error-message {
    display: block;
}

.password-input {
    position: relative;
}

.toggle-password {
    position: absolute;
    right: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    color: var(--text-secondary);
    transition: color 0.3s ease;
}

.toggle-password:hover {
    color: var(--primary);
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.remember-me {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    cursor: pointer;
}

.remember-me input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
}

.remember-me span {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.forgot-password {
    font-size: 0.9rem;
    color: var(--primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.forgot-password:hover {
    color: var(--primary-dark);
}

/* Social login */
.social-login {
    text-align: center;
    margin: var(--spacing-xl) 0;
    position: relative;
    animation: slideDown 0.5s ease-out 0.5s backwards;
}

.social-login::before {
    content: '';
    position: absolute;
    top: 40%;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--border);
    z-index: 0;
}

.social-login p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-md);
    position: relative;
    display: inline-block;
    background: var(--background);
    padding: 0 var(--spacing-md);
    z-index: 1;
    transition: color 0.3s ease;
}

@media (prefers-color-scheme: dark) {
    .social-login p {
        background: var(--background);
        color: var(--text-secondary);
    }
}

.social-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.btn-social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    border: 1px solid var(--border);
    border-radius: 50%;
    background: white;
    color: var(--text-primary);
    font-size: 1.2rem;
    transition: all 0.3s ease;
    cursor: pointer;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.btn-social-icon:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.btn-social-icon:active {
    transform: translateY(0);
    box-shadow: none;
}

.btn-social-icon i {
    transition: color 0.3s ease, transform 0.3s ease;
}

.btn-social-icon:hover i {
    color: var(--primary);
    transform: scale(1.1);
}

/* Botão de login principal */
.login-btn {
    width: 100%;
    padding: var(--spacing-md);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    position: relative;
    overflow: hidden;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    transition: all 0.3s ease;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    animation: slideUp 0.5s ease-out 0.4s backwards;
}

.login-btn:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.login-btn:active {
    transform: translateY(0);
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.15);
}

.login-btn i {
    transition: transform 0.3s ease;
}

.login-btn:hover i {
    transform: scale(1.1);
}

.login-btn .loading-spinner {
    position: absolute;
    right: var(--spacing-md);
}

.register-link, .login-link {
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.register-link a, .login-link a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.register-link a:hover, .login-link a:hover {
    color: var(--primary-dark);
}

.error-message {
    color: var(--error);
    font-size: 0.8rem;
    margin-top: var(--spacing-xs);
    display: none;
}

/* Animações */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

/* Responsividade */
@media (max-width: 480px) {
    .login-card {
        padding: var(--spacing-lg);
    }

    .social-login {
        margin: var(--spacing-lg) 0;
    }

    .social-buttons {
        gap: var(--spacing-sm);
    }

    .btn-social-icon {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }

    .login-btn {
        padding: var(--spacing-sm);
        font-size: 1rem;
    }
}