.hidden { display: none; }

body {
    font-family: 'Inter', sans-serif;
    background: var(--gradient);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-container {
    background: var(--white);
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    width: 100%;
    max-width: 400px;
    position: relative;
}

.login-header {
    text-align: center;
    padding: 2rem 2rem 1rem;
    background: linear-gradient(135deg, #F8FAFC 0%, #E2E8F0 100%);
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.login-subtitle {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.login-form {
    padding: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-input {
    width: 100%;
    box-sizing: border-box;
    padding: 0.75rem;
    border: 2px solid #E2E8F0;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: var(--white);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

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

.form-input.success {
    border-color: var(--success);
}

.error-message {
    color: var(--error);
    font-size: 0.875rem;
    margin-top: 0.25rem;
    display: none;
}

.success-message {
    color: var(--success);
    font-size: 0.875rem;
    margin-top: 0.25rem;
    display: none;
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    font-size: 0.875rem;
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
}

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

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

.btn {
    width: 100%;
    padding: 0.875rem;
    background: var(--gradient);
    color: var(--white);
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: 1rem;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.divider {
    text-align: center;
    margin: 1.5rem 0;
    position: relative;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: #E2E8F0;
    z-index: 1;
}

.divider span {
    background: var(--white);
    padding: 0 1rem;
    position: relative;
    z-index: 2;
}

.google-btn {
    width: 100%;
    padding: 0.875rem;
    background: var(--white);
    color: var(--text-primary);
    border: 2px solid #E2E8F0;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 1.2rem;
}

.google-btn:hover {
    border-color: var(--primary);
    background: #F8FAFC;
}

.login-footer {
    text-align: center;
    padding: 1rem 2rem 2rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.login-footer a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}

.login-footer a:hover {
    color: var(--primary-dark);
}

.back-to-home {
    position: absolute;
    top: 1rem;
    left: 1rem;
    color: var(--white);
    text-decoration: none;
    font-size: 0.875rem;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 6px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.back-to-home:hover {
    background: rgba(255, 255, 255, 0.3);
}

.loading {
    display: none;
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top: 2px solid var(--white);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@media (max-width: 768px) {
    body {
        padding: 15px;
    }
    
    .login-container {
        margin-top: 20px;
        max-width: 380px;
    }
    
    .login-header {
        padding: 1.5rem 1.5rem 1rem;
    }
    
    .login-form {
        padding: 1.5rem;
    }
    
    .logo {
        font-size: 1.6rem;
    }
}

/* Activation Resend Styles */
.activation-resend-container {
    margin-top: 1.5rem;
    padding: 0 2rem 2rem;
}

.activation-alert {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    background: linear-gradient(135deg, #FEF3C7, #FDE68A);
    border: 1px solid #F59E0B;
    border-radius: 12px;
    padding: 1.25rem;
    margin-bottom: 1.5rem;
}

.alert-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
    margin-top: 0.25rem;
}

.alert-content h3 {
    margin: 0 0 0.5rem 0;
    font-size: 1rem;
    font-weight: 600;
    color: #92400E;
}

.alert-content p {
    margin: 0;
    font-size: 0.875rem;
    color: #92400E;
    line-height: 1.4;
}

.resend-activation-form {
    background: #F8FAFC;
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid #E2E8F0;
}

.resend-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.resend-header h4 {
    margin: 0 0 0.5rem 0;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.resend-header p {
    margin: 0;
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

.resend-btn {
    background: linear-gradient(135deg, #10B981, #059669);
    margin-bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-weight: 500;
}

.resend-btn:hover {
    background: linear-gradient(135deg, #059669, #047857);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(16, 185, 129, 0.4);
}

.resend-btn span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

@media (max-width: 480px) {
    body {
        padding: 10px;
    }
    
    .login-container {
        margin: 0;
        margin-top: 45px;
        max-width: 100%;
    }
    
    .login-form {
        padding: 1.25rem;
    }
    
    .login-header {
        padding: 1.25rem 1.25rem 1rem;
    }
    
    .logo {
        font-size: 1.5rem;
    }
    
    .login-subtitle {
        font-size: 0.85rem;
    }
    
    .form-input {
        font-size: 16px; /* Evita zoom no iOS */
    }
    
    .btn {
        padding: 0.8rem;
        font-size: 0.95rem;
    }
    
    .google-btn {
        padding: 0.8rem;
        font-size: 0.95rem;
        margin-bottom: 1rem;
    }
    
    .form-options {
        flex-direction: column;
        gap: 0.75rem;
        align-items: flex-start;
    }
    
    .checkbox-group {
        font-size: 0.8rem;
    }
    
    .forgot-password {
        font-size: 0.8rem;
    }

    .activation-resend-container {
        padding: 0 1.25rem 1.25rem;
    }

    .activation-alert {
        padding: 1rem;
        gap: 0.75rem;
    }

    .alert-icon {
        font-size: 1.25rem;
    }

    .resend-activation-form {
        padding: 1rem;
    }

    .resend-header h4 {
        font-size: 1rem;
    }

    .resend-header p {
        font-size: 0.8rem;
    }
}

@media (max-width: 320px) {
    .login-container {
        margin-top: 10px;
    }
    
    .logo {
        font-size: 1.3rem;
    }
    
    .login-header,
    .login-form {
        padding: 1rem;
    }
    
    .activation-resend-container {
        padding: 0 1rem 1rem;
    }
}