/* ==========================================================================
   GEOTEK S.A. - Estilos Corporativos (PHP Puro Modernizado)
   ========================================================================== */

:root {
    --primary: #409d76;
    --primary-dark: #31795b;
    --primary-light: #52be90;
    --secondary: #007ec2;
    --secondary-dark: #006096;
    --accent: #e3ae28;
    --text-dark: #1e293b;
    --text-muted: #64748b;
    --text-body: #334155;
    --bg-light: #f8fafc;
    --bg-white: #ffffff;
    --bg-dark: #1f2937;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --radius: 8px;
    --radius-lg: 12px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Lato', 'Segoe UI', system-ui, -apple-system, Roboto, sans-serif;
    color: var(--text-body);
    background-color: #ffffff;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* Tipografía */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-dark);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 0.75rem;
}

h1 { font-size: 2.25rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.35rem; }
h4 { font-size: 1.15rem; }

p {
    margin-bottom: 1rem;
}

a {
    color: var(--secondary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary);
}

img {
    max-width: 100%;
    height: auto;
    display: inline-block;
}

ul, ol {
    padding-left: 1.25rem;
    margin-bottom: 1rem;
}

/* Layout */
.container {
    width: 100%;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}

.row {
    display: flex;
    flex-wrap: wrap;
    margin-left: -1rem;
    margin-right: -1rem;
}

.col-12 { flex: 0 0 100%; max-width: 100%; padding: 0 1rem; }
.col-8 { flex: 0 0 66.666667%; max-width: 66.666667%; padding: 0 1rem; }
.col-9 { flex: 0 0 75%; max-width: 75%; padding: 0 1rem; }
.col-6 { flex: 0 0 50%; max-width: 50%; padding: 0 1rem; }
.col-4 { flex: 0 0 33.333333%; max-width: 33.333333%; padding: 0 1rem; }
.col-3 { flex: 0 0 25%; max-width: 25%; padding: 0 1rem; }

@media (max-width: 991px) {
    .col-8, .col-9, .col-4, .col-3 {
        flex: 0 0 100%;
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    .col-6 {
        flex: 0 0 100%;
        max-width: 100%;
    }
}

/* ==========================================================================
   HEADER & NAVBAR
   ========================================================================== */
.site-header {
    background: #ffffff;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.site-header.scrolled {
    box-shadow: var(--shadow-md);
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(8px);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 85px;
}

.site-logo {
    display: flex;
    align-items: center;
}

.site-logo img {
    height: 60px;
    width: auto;
    object-fit: contain;
}

/* Menú Principal */
.main-nav {
    display: flex;
    align-items: center;
}

.nav-list {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 0.5rem;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: block;
    padding: 0.6rem 1.1rem;
    color: var(--text-dark);
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: 4px;
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--primary);
    background-color: rgba(64, 157, 118, 0.08);
}

.nav-item.active .nav-link {
    color: var(--primary);
    border-bottom: 2px solid var(--primary);
    border-radius: 0;
}

/* Menú Móvil Botón */
.mobile-nav-toggle {
    display: none;
    background: transparent;
    border: none;
    font-size: 1.5rem;
    color: var(--text-dark);
    cursor: pointer;
    padding: 0.5rem;
}

@media (max-width: 991px) {
    .mobile-nav-toggle {
        display: block;
    }
    
    .nav-list {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 85px;
        left: 0;
        right: 0;
        background: #ffffff;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-lg);
        padding: 1rem 0;
        gap: 0;
    }
    
    .nav-list.active {
        display: flex;
    }
    
    .nav-link {
        padding: 0.85rem 1.5rem;
        border-radius: 0;
    }
    
    .nav-item.active .nav-link {
        border-bottom: none;
        border-left: 4px solid var(--primary);
        background: rgba(64, 157, 118, 0.08);
    }
}

/* ==========================================================================
   HERO / SLIDER (Home)
   ========================================================================== */
.hero-slider-section {
    position: relative;
    width: 100%;
    height: 480px;
    overflow: hidden;
    background-color: #1a202c;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 1.2s ease-in-out, visibility 1.2s ease-in-out, transform 6s ease-out;
    transform: scale(1.05);
}

.hero-slide.active {
    opacity: 1;
    visibility: visible;
    transform: scale(1);
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0,0,0,0.3) 0%, rgba(0,0,0,0.6) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content {
    color: #ffffff;
    text-align: center;
    max-width: 800px;
    padding: 0 1.5rem;
}

.hero-content h1 {
    color: #ffffff;
    font-size: 2.75rem;
    font-weight: 800;
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
    margin-bottom: 1rem;
}

.hero-content p {
    font-size: 1.25rem;
    text-shadow: 0 1px 3px rgba(0,0,0,0.5);
    color: #f1f5f9;
}

.slider-indicators {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 10;
}

.slider-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.slider-dot.active {
    background: var(--primary);
    width: 28px;
    border-radius: 6px;
}

/* ==========================================================================
   FEATURE CARDS (Home 3 Columnas)
   ========================================================================== */
.features-section {
    padding: 3.5rem 0 2rem;
    background-color: #ffffff;
}

.feature-card {
    background: #ffffff;
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 4px 18px rgba(0, 0, 0, 0.08);
    border: 1px solid #e9ecef;
    transition: all 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
    text-align: left;
    height: 100%;
    display: flex;
    flex-direction: column;
    text-decoration: none;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 14px 30px rgba(0, 0, 0, 0.13);
    border-color: var(--primary);
}

.feature-img-wrapper {
    position: relative;
    overflow: hidden;
    background: #f8fafc;
    line-height: 0;
}

.feature-img-wrapper img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain;
    transition: transform 0.45s ease;
}

.feature-card:hover .feature-img-wrapper img {
    transform: scale(1.03);
}

.feature-card-footer {
    padding: 0.95rem 1.25rem;
    background: #ffffff;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-top: 1px solid #f1f5f9;
    font-weight: 700;
    font-size: 0.92rem;
    color: var(--primary);
    transition: var(--transition);
}

.feature-card:hover .feature-card-footer {
    background: var(--primary);
    color: #ffffff;
}

.feature-card-footer i {
    transition: transform 0.3s ease;
}

.feature-card:hover .feature-card-footer i {
    transform: translateX(4px);
}

/* ==========================================================================
   TIMELINE / SERVICIOS MAP
   ========================================================================== */
.services-map-section {
    padding: 3rem 0;
    background-color: var(--bg-light);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.section-title {
    text-align: center;
    position: relative;
    margin-bottom: 2.5rem;
}

.section-title h2, .section-title h1 {
    font-size: 2.2rem;
    color: var(--text-dark);
    display: inline-block;
    padding-bottom: 0.5rem;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: var(--primary);
    margin: 0.5rem auto 0;
    border-radius: 2px;
}

.timeline-wrapper {
    text-align: center;
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    border-radius: var(--radius-lg);
    background: #ffffff;
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.timeline-wrapper img {
    width: 100%;
    max-width: 1000px;
    border-radius: var(--radius);
}

/* Quick links cards for mobile & responsive timeline */
.timeline-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin-top: 2rem;
}

.timeline-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.85rem 1rem;
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    color: var(--text-dark);
    font-weight: 600;
    font-size: 0.9rem;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.timeline-btn:hover {
    background: var(--primary);
    color: #ffffff;
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ==========================================================================
   CLIENTS CAROUSEL (Home)
   ========================================================================== */
.clients-section {
    padding: 3.5rem 0;
    background: #ffffff;
}

.clients-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 1.5rem;
    align-items: center;
    justify-items: center;
    margin-top: 2rem;
}

.client-item {
    padding: 1rem;
    background: #ffffff;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 90px;
    transition: var(--transition);
}

.client-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
}

.client-item img {
    max-height: 55px;
    max-width: 120px;
    width: auto;
    object-fit: contain;
    filter: grayscale(80%);
    opacity: 0.85;
    transition: var(--transition);
}

.client-item:hover img {
    filter: grayscale(0%);
    opacity: 1;
}

/* ==========================================================================
   PAGE BANNER / BREADCRUMB
   ========================================================================== */
.page-banner {
    background: linear-gradient(135deg, #409d76 0%, #007ec2 100%);
    color: #ffffff;
    padding: 2.5rem 0;
    margin-bottom: 2.5rem;
}

.page-banner h1 {
    color: #ffffff;
    margin: 0;
    font-size: 2.2rem;
}

.breadcrumbs {
    display: flex;
    list-style: none;
    padding: 0;
    margin-top: 0.5rem;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.85);
}

.breadcrumbs a {
    color: #ffffff;
}

.breadcrumbs a:hover {
    text-decoration: underline;
}

.breadcrumbs span.separator {
    margin: 0 0.5rem;
}

/* ==========================================================================
   CONTENT INNER & SIDEBARS
   ========================================================================== */
.main-content {
    padding: 1rem 0 4rem;
}

.page-card {
    background: #ffffff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    padding: 2.5rem;
    margin-bottom: 2rem;
}

@media (max-width: 768px) {
    .page-card {
        padding: 1.5rem;
    }
}

/* Sidebar */
.sidebar-widget {
    background: #ffffff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.sidebar-title {
    font-size: 1.15rem;
    color: var(--text-dark);
    margin-bottom: 1.25rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary);
}

.sidebar-nav {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.sidebar-nav-item a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    color: var(--text-dark);
    font-weight: 500;
    font-size: 0.92rem;
    border: 1px solid transparent;
    transition: var(--transition);
}

.sidebar-nav-item a:hover {
    background: var(--bg-light);
    color: var(--primary);
    border-color: var(--border-color);
}

.sidebar-nav-item.active a {
    background: rgba(64, 157, 118, 0.1);
    color: var(--primary);
    font-weight: 600;
    border-color: rgba(64, 157, 118, 0.3);
}

.sidebar-nav-item img {
    width: 28px;
    height: 28px;
    object-fit: contain;
}

/* ==========================================================================
   ACCORDIONS (Para Prospección, Assessment, etc.)
   ========================================================================== */
.accordion {
    margin: 1.5rem 0;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.accordion-item {
    border-bottom: 1px solid var(--border-color);
}

.accordion-item:last-child {
    border-bottom: none;
}

.accordion-header {
    width: 100%;
    padding: 1.1rem 1.25rem;
    background: #ffffff;
    border: none;
    text-align: left;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-weight: 600;
    font-size: 1.05rem;
    color: var(--text-dark);
    transition: var(--transition);
}

.accordion-header:hover {
    background-color: var(--bg-light);
    color: var(--primary);
}

.accordion-header.active {
    background-color: rgba(64, 157, 118, 0.08);
    color: var(--primary);
    border-left: 4px solid var(--primary);
}

.accordion-icon {
    font-size: 0.85rem;
    transition: transform 0.3s ease;
}

.accordion-header.active .accordion-icon {
    transform: rotate(180deg);
}

.accordion-content {
    display: none;
    padding: 1.5rem;
    background: #ffffff;
    border-top: 1px solid var(--border-color);
}

.accordion-content.open {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   PRODUCT & SERVICE CARDS GRID
   ========================================================================== */
.cards-catalog {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.catalog-card {
    background: #ffffff;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.catalog-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
}

.catalog-card-img {
    height: 200px;
    background: #f8fafc;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.catalog-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.catalog-card:hover .catalog-card-img img {
    transform: scale(1.06);
}

.catalog-card-body {
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.catalog-card-title {
    font-size: 1.15rem;
    margin-bottom: 0.5rem;
}

.catalog-card-btn {
    margin-top: auto;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--primary);
}

.catalog-card-btn:hover {
    color: var(--primary-dark);
}

/* ==========================================================================
   DESCARGAS (Downloads)
   ========================================================================== */
.downloads-category-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
}

.cat-btn {
    padding: 0.6rem 1.25rem;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    background: #ffffff;
    color: var(--text-dark);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
}

.cat-btn:hover, .cat-btn.active {
    background: var(--primary);
    color: #ffffff;
    border-color: var(--primary);
}

.download-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

.download-table th, .download-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.download-table th {
    background-color: var(--bg-light);
    color: var(--text-dark);
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.download-table tr:hover td {
    background-color: #fdfdfd;
}

.btn-download {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--primary);
    color: #ffffff;
    border-radius: var(--radius);
    font-size: 0.85rem;
    font-weight: 600;
    transition: var(--transition);
}

.btn-download:hover {
    background: var(--primary-dark);
    color: #ffffff;
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

/* ==========================================================================
   CONTACTO
   ========================================================================== */
.contact-info-box {
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    border: 1px solid var(--border-color);
    margin-bottom: 1.5rem;
}

.contact-info-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.contact-info-list li {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.contact-info-list li:last-child {
    margin-bottom: 0;
}

.contact-info-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(64, 157, 118, 0.12);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    flex-shrink: 0;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    margin-bottom: 0.4rem;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-dark);
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-family: inherit;
    transition: var(--transition);
    background: #ffffff;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(64, 157, 118, 0.15);
}

textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.8rem 1.75rem;
    background: var(--primary);
    color: #ffffff;
    border: none;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: #ffffff;
}

.alert {
    padding: 1rem 1.25rem;
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.alert-success {
    background-color: #d1fae5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.alert-error {
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
    background: #3b434c;
    color: #e2e8f0;
    padding: 4rem 0 1.5rem;
    border-top: 4px solid var(--accent);
}

.footer-widget h3 {
    color: #ffffff;
    font-size: 1.2rem;
    margin-bottom: 1.25rem;
    position: relative;
    padding-bottom: 0.5rem;
}

.footer-widget h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 35px;
    height: 2px;
    background: var(--primary);
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 0.6rem;
}

.footer-links a {
    color: #cbd5e1;
    font-size: 0.92rem;
    transition: var(--transition);
    display: inline-block;
}

.footer-links a:hover {
    color: #ffffff;
    transform: translateX(4px);
}

.footer-contact {
    list-style: none;
    padding: 0;
    margin: 0;
    font-size: 0.92rem;
}

.footer-contact li {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    color: #cbd5e1;
}

.footer-contact i {
    color: var(--primary-light);
    margin-top: 4px;
}

.footer-bottom {
    margin-top: 3rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    background: #252b32;
    margin-left: -1.5rem;
    margin-right: -1.5rem;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
    margin-bottom: -1.5rem;
    padding-bottom: 1.5rem;
}

.footer-bottom-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: 0.88rem;
    color: #94a3b8;
}

.footer-bottom a {
    color: var(--primary-light);
}

/* ==========================================================================
   FLOATING SOCIAL SIDEBAR
   ========================================================================== */
.social-sidebar {
    position: fixed;
    right: 0;
    top: 40%;
    transform: translateY(-50%);
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.social-btn {
    display: flex;
    align-items: center;
    background: #333333;
    color: #ffffff;
    height: 44px;
    width: 44px;
    border-radius: 4px 0 0 4px;
    overflow: hidden;
    text-decoration: none;
    transition: width 0.3s ease, background 0.3s ease;
    box-shadow: var(--shadow-md);
}

.social-btn:hover {
    width: 170px;
    color: #ffffff;
}

.social-btn.facebook { background: #3b5998; }
.social-btn.linkedin { background: #0077b5; }

.social-btn i {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.social-btn span {
    white-space: nowrap;
    padding-right: 15px;
    font-size: 0.85rem;
    font-weight: 600;
}

/* ==========================================================================
   BACK TO TOP BUTTON
   ========================================================================== */
.back-to-top {
    position: fixed;
    bottom: 25px;
    right: 25px;
    width: 45px;
    height: 45px;
    background: var(--primary);
    color: #ffffff;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 998;
    border: none;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--primary-dark);
    color: #ffffff;
    transform: translateY(-3px);
}