:root {
    --fb-blue: #004aad;
    --fb-blue-hover: #166fe5;
    --fb-green: #42b72a;
    --fb-green-hover: #36a420;
    --fb-gray-bg: #f0f2f5;
    --fb-text-primary: #1c1e21;
    --fb-text-secondary: #65676b;
    --fb-card-bg: #ffffff;
    --fb-border: #dddfe2;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--fb-gray-bg);
    color: var(--fb-text-primary);
    line-height: 1.34;
}

/* Header estilo Facebook */
.fb-header {
    background-color: var(--fb-card-bg);
    border-bottom: 1px solid var(--fb-border);
    height: 56px;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    padding: 0 16px;
    max-width: 1200px;
    margin: 0 auto;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo {
    font-size: 28px;
    font-weight: 700;
    color: var(--fb-blue);
    text-decoration: none;
}

.logo:hover {
    text-decoration: none;
}

.status-badge {
    background-color: #e7f3ff;
    color: var(--fb-blue);
    font-size: 11px;
    font-weight: 600;
    padding: 4px 8px;
    border-radius: 6px;
    letter-spacing: 0.5px;
}

/* Main content estilo Facebook */
.fb-main {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 120px);
    padding: 80px 20px 40px;
}

.construction-container {
    display: flex;
    max-width: 980px;
    width: 100%;
    gap: 40px;
    align-items: center;
}

.left-column {
    flex: 1;
    padding-right: 20px;
}

.left-column h1 {
    font-size: 28px;
    font-weight: 600;
    line-height: 32px;
    margin-bottom: 16px;
}

.left-column p {
    font-size: 17px;
    color: var(--fb-text-secondary);
    margin-bottom: 24px;
}

.feature-card {
    background-color: var(--fb-card-bg);
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    margin-bottom: 16px;
    border: 1px solid var(--fb-border);
    transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.feature-header {
    display: flex;
    align-items: center;
    margin-bottom: 12px;
}

.feature-icon {
    width: 36px;
    height: 36px;
    background-color: #e7f3ff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 12px;
    color: var(--fb-blue);
    font-size: 16px;
}

.feature-title {
    font-weight: 600;
    font-size: 16px;
}

.feature-desc {
    color: var(--fb-text-secondary);
    font-size: 15px;
    margin-left: 48px;
}

/* Right column estilo Facebook */
.right-column {
    flex: 0 0 400px;
    background-color: var(--fb-card-bg);
    border-radius: 8px;
    padding: 40px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1), 0 8px 16px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--fb-border);
    text-align: center;
}

.construction-image {
    max-width: 250px;
    margin: 0 auto 24px;
    display: block;
}

.progress-indicator {
    background-color: var(--fb-gray-bg);
    border-radius: 6px;
    padding: 16px;
    margin-top: 24px;
}

.progress-bar {
    height: 4px;
    background-color: var(--fb-border);
    border-radius: 2px;
    overflow: hidden;
    margin: 8px 0;
}

.progress-fill {
    height: 100%;
    background-color: var(--fb-green);
    border-radius: 2px;
    transition: width 1s ease-in-out;
}

.progress-text {
    font-size: 13px;
    color: var(--fb-text-secondary);
}

.notification-box {
    background-color: #fff8e1;
    border-left: 4px solid #ffc107;
    padding: 12px 16px;
    margin-top: 24px;
    text-align: left;
    border-radius: 0 4px 4px 0;
}

.notification-box i {
    color: #ff9800;
    margin-right: 8px;
}

.notification-text {
    font-size: 14px;
    color: #5d4037;
}

/* Footer estilo Facebook */
.fb-footer {
    background-color: var(--fb-card-bg);
    border-top: 1px solid var(--fb-border);
    padding: 20px 0;
    margin-top: auto;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 16px;
    text-align: center;
}

.footer-logo {
    max-width: 150px;
    margin-bottom: 16px;
}

.copyright {
    color: var(--fb-text-secondary);
    font-size: 13px;
    margin-top: 8px;
}

/* Botones */
.btn-primary {
    background-color: var(--fb-blue);
    border: none;
    padding: 10px 24px;
    font-weight: 600;
    font-size: 16px;
    border-radius: 6px;
    transition: background-color 0.2s;
}

.btn-primary:hover {
    background-color: var(--fb-blue-hover);
}

/* Responsive */
@media (max-width: 900px) {
    .construction-container {
        flex-direction: column;
    }
    
    .left-column, .right-column {
        width: 100%;
        max-width: 500px;
    }
    
    .right-column {
        flex: none;
    }
    
    .fb-main {
        padding: 70px 16px 32px;
    }
}

@media (max-width: 480px) {
    .header-container {
        padding: 0 12px;
    }
    
    .right-column {
        padding: 24px;
    }
    
    .feature-card {
        padding: 16px;
    }
}

/* FAQ Styles */
.faq-container {
    padding: 0 20px;
}

.accordion-button {
    font-size: 15px;
}

.accordion-button:not(.collapsed) {
    background-color: #f8f9fa;
    border-bottom: 1px solid var(--fb-border);
}

.accordion-body {
    background-color: var(--fb-gray-bg);
}

/* Contact Form Styles */
.form-control:focus, .form-select:focus {
    border-color: var(--fb-blue);
    box-shadow: 0 0 0 0.25rem rgba(0, 74, 173, 0.25);
}

/* Badge Styles */
.badge {
    font-weight: 500;
    padding: 4px 8px;
}

/* Card hover effects */
.card-hover {
    transition: transform 0.2s, box-shadow 0.2s;
}

.card-hover:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1) !important;
}

/* Utility Classes */
.text-primary {
    color: var(--fb-blue) !important;
}

.bg-primary {
    background-color: var(--fb-blue) !important;
}

.border-primary {
    border-color: var(--fb-blue) !important;
}

/* Loading spinner */
.spinner-border {
    width: 1.5rem;
    height: 1.5rem;
    border-width: 0.2em;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .faq-container {
        padding: 0 15px;
    }
    
    .accordion-button {
        font-size: 14px;
        padding: 0.75rem 1rem;
    }
    
    .stat-number {
        font-size: 20px !important;
    }
}