:root {
    --bg-dark: #1e293b;
    --bg-darker: #0f172a;
    --bg-light: #ffffff;
    --bg-alt: #f1f5f9;
    --text-light: #f8fafc;
    --text-dark: #1e293b;
    --text-muted: #64748b;
    --text-muted-light: #cbd5e1;
    --accent: #dc2626;
    --accent-hover: #b91c1c;
    --glass-bg: rgba(30, 41, 59, 0.8);
    --glass-border: rgba(255, 255, 255, 0.1);
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-light);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Outfit', sans-serif;
    font-weight: 800;
    line-height: 1.2;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 2rem; }
.section { padding: 100px 0; position: relative; }
.dark-bg { background-color: var(--bg-dark); color: var(--text-light); }
.alt-bg { background-color: var(--bg-alt); }
.highlight { color: var(--accent); }

/* ==========================================
   PRELOADER
   ========================================== */
#preloader {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: var(--bg-darker);
    z-index: 99999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: opacity 0.6s ease, visibility 0.6s ease;
}
#preloader.hidden {
    opacity: 0;
    visibility: hidden;
}
.preloader-logo {
    font-family: 'Outfit', sans-serif;
    font-size: 2.5rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 2rem;
    animation: pulse 1.5s ease-in-out infinite;
}
.preloader-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255,255,255,0.15);
    border-top: 4px solid var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }

/* ==========================================
   SCROLL PROGRESS BAR
   ========================================== */
#scroll-progress {
    position: fixed;
    top: 0; left: 0;
    height: 3px;
    width: 0%;
    background: var(--accent);
    z-index: 10001;
    transition: none;
}

/* ==========================================
   BUTTONS
   ========================================== */
.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    border-radius: 4px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 1px;
}
.btn-primary {
    background: var(--accent);
    color: #fff;
    border: none;
    box-shadow: 0 4px 15px rgba(220, 38, 38, 0.3);
}
.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(220, 38, 38, 0.5);
}
.btn-secondary {
    background: transparent;
    color: var(--accent);
    border: 2px solid var(--accent);
}
.btn-secondary:hover {
    background: rgba(220, 38, 38, 0.1);
    transform: translateY(-3px);
}
.dark-bg .btn-secondary { color: #fff; border-color: #fff; }
.dark-bg .btn-secondary:hover { background: rgba(255, 255, 255, 0.1); }

/* ==========================================
   CARDS
   ========================================== */
.card {
    background: #fff;
    border-radius: 8px;
    padding: 2.5rem;
    transition: var(--transition);
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    border-bottom: 4px solid transparent;
}
.card:hover {
    transform: translateY(-10px);
    border-bottom-color: var(--accent);
    box-shadow: 0 15px 40px rgba(0,0,0,0.1);
}
.dark-bg .card {
    background: var(--bg-darker);
    border-bottom-color: transparent;
    border-top: 4px solid transparent;
    color: var(--text-light);
}
.dark-bg .card:hover { border-top-color: var(--accent); }

/* ==========================================
   SECTION HEADER
   ========================================== */
.section-header { text-align: center; margin-bottom: 4rem; }
.section-header h2 { font-size: 2.5rem; margin-bottom: 1rem; }
.section-header .line {
    height: 4px; width: 80px; background: var(--accent);
    margin: 0 auto 1.5rem auto; border-radius: 2px;
}
.section-header p {
    color: var(--text-muted); max-width: 700px;
    margin: 0 auto; font-size: 1.1rem;
}
.dark-bg .section-header p { color: var(--text-muted-light); }

/* ==========================================
   NAVBAR
   ========================================== */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    padding: 1rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    transition: var(--transition);
}
.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #e2e8f0;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}
.logo-container { display: flex; align-items: center; gap: 15px; }
.logo-img { height: 40px; border-radius: 4px; }
.logo-text {
    font-family: 'Outfit', sans-serif;
    font-size: 1.5rem; font-weight: 800;
    letter-spacing: 1px; color: #fff;
    transition: var(--transition);
}
.navbar.scrolled .logo-text,
.navbar.scrolled .nav-links a,
.navbar.scrolled .hamburger { color: var(--text-dark); }
.nav-links { display: flex; gap: 2rem; }
.nav-links a {
    font-size: 0.9rem; font-weight: 600; color: #fff;
    position: relative; transition: var(--transition); text-transform: uppercase;
}
.nav-links a:hover, .nav-links a.active-spy { color: var(--accent); }
.nav-links a::after {
    content: ''; position: absolute;
    bottom: -5px; left: 0;
    width: 0; height: 2px;
    background: var(--accent); transition: var(--transition);
}
.nav-links a:hover::after, .nav-links a.active-spy::after { width: 100%; }
.hamburger { display: none; font-size: 1.8rem; cursor: pointer; color: #fff; }

/* ==========================================
   HERO SECTION (with particle canvas)
   ========================================== */
.hero {
    height: 100vh;
    display: flex; align-items: center; justify-content: center;
    text-align: center; position: relative;
    background: url('assets/hero.png') no-repeat center center/cover;
}
.hero-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(30, 41, 59, 0.85);
}
#particle-canvas {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: 1;
    pointer-events: none;
}
.hero-content {
    position: relative; z-index: 2;
    max-width: 900px; padding: 0 2rem;
}
.hero-title {
    font-size: 4rem; margin-bottom: 1.5rem;
    line-height: 1.1; text-transform: uppercase;
    letter-spacing: 1px; color: #fff;
}
.hero-subtitle {
    font-size: 1.2rem; color: var(--text-muted-light);
    margin-bottom: 2.5rem; font-weight: 400;
}
.hero-buttons { display: flex; gap: 1.5rem; justify-content: center; }

/* ==========================================
   COUNTER STATS BAR
   ========================================== */
.stats-bar {
    background: var(--bg-darker);
    padding: 3rem 0;
    border-bottom: 3px solid var(--accent);
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    text-align: center;
}
.stat-item .counter-number {
    font-family: 'Outfit', sans-serif;
    font-size: 3rem;
    font-weight: 800;
    color: var(--accent);
    display: block;
}
.stat-item .stat-label {
    font-size: 0.9rem;
    color: var(--text-muted-light);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-top: 0.5rem;
}

/* ==========================================
   PILLARS
   ========================================== */
.pillars {
    margin-top: -80px;
    position: relative; z-index: 10;
    padding-bottom: 50px;
}
.pillars-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}
.pillar-card {
    background: #fff; padding: 2rem; border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    text-align: center; border-top: 4px solid var(--accent);
    transition: var(--transition);
}
.pillar-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}
.pillar-card i { font-size: 2.5rem; color: var(--accent); margin-bottom: 1rem; }
.pillar-card h3 { margin-bottom: 1rem; font-size: 1.3rem; }
.pillar-card p { color: var(--text-muted); font-size: 0.95rem; }

/* ==========================================
   GRID LAYOUTS
   ========================================== */
.grid-2 {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 4rem; align-items: center;
}
.text-content p { margin-bottom: 1.2rem; font-size: 1.1rem; color: var(--text-muted); }
.dark-bg .text-content p { color: var(--text-muted-light); }

.image-wrapper {
    position: relative; border-radius: 8px;
    overflow: hidden; box-shadow: 0 20px 40px rgba(0,0,0,0.2);
}
.image-wrapper img {
    width: 100%; display: block;
    transition: transform 0.5s ease;
}
.image-wrapper:hover img { transform: scale(1.05); }

/* ==========================================
   TABBED CAPABILITIES
   ========================================== */
.cap-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 3rem;
    background: var(--bg-alt);
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid #e2e8f0;
}
.cap-tab {
    flex: 1;
    padding: 1rem 1.5rem;
    text-align: center;
    font-weight: 600;
    font-family: 'Outfit', sans-serif;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    background: transparent;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}
.cap-tab:hover { background: rgba(220, 38, 38, 0.05); color: var(--text-dark); }
.cap-tab.active {
    background: var(--accent);
    color: #fff;
}
.cap-panel { display: none; }
.cap-panel.active { display: block; animation: fadeInUp 0.5s ease forwards; }

/* ==========================================
   CAPABILITIES TABLE
   ========================================== */
.capabilities-table {
    width: 100%; border-collapse: collapse;
    margin-top: 2rem; background: #fff;
    border-radius: 8px; overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}
.capabilities-table th, .capabilities-table td {
    padding: 1.2rem; text-align: left;
    border-bottom: 1px solid var(--bg-alt);
}
.capabilities-table th {
    background: var(--bg-dark); color: #fff;
    font-family: 'Outfit', sans-serif; text-transform: uppercase;
}
.capabilities-table tr:last-child td { border-bottom: none; }
.capabilities-table td { color: var(--text-dark); font-weight: 500; }

/* ==========================================
   MATERIALS GRID
   ========================================== */
.materials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}
.material-item { padding-left: 1.5rem; border-left: 3px solid var(--accent); margin-bottom: 1.5rem; }
.material-item h4 { color: #fff; margin-bottom: 0.5rem; font-size: 1.1rem; }
.material-item p { color: var(--text-muted-light); font-size: 0.95rem; }

/* ==========================================
   CLIENTS
   ========================================== */
.clients {
    padding: 60px 0; background: #fff;
    border-top: 1px solid #e2e8f0; overflow: hidden;
}
.client-track {
    display: flex; gap: 4rem; align-items: center;
    justify-content: center; flex-wrap: wrap;
}
.client-logo-box {
    text-align: center; padding: 1rem;
    filter: grayscale(100%); transition: var(--transition); opacity: 0.7;
}
.client-logo-box:hover { filter: grayscale(0%); opacity: 1; }
.client-logo-box h3 { font-size: 1.2rem; color: var(--text-dark); margin-bottom: 0.2rem; }
.client-logo-box p { font-size: 0.8rem; color: var(--text-muted); }

/* ==========================================
   FORMS
   ========================================== */
.form-group { margin-bottom: 1.5rem; }
.form-control {
    width: 100%; padding: 1rem; background: var(--bg-alt);
    border: 1px solid #e2e8f0; border-radius: 4px;
    font-family: 'Inter', sans-serif; font-size: 1rem; color: var(--text-dark);
}
.form-control:focus {
    outline: none; border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}
.file-upload {
    padding: 2rem; border: 2px dashed #cbd5e1; border-radius: 4px;
    text-align: center; background: #f8fafc; cursor: pointer; transition: var(--transition);
}
.file-upload:hover { border-color: var(--accent); background: #fff; }
.file-upload i { font-size: 2rem; color: var(--text-muted); margin-bottom: 1rem; }

/* ==========================================
   GOOGLE MAP
   ========================================== */
.map-container {
    margin-top: 3rem;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    border: 3px solid #e2e8f0;
}
.map-container iframe {
    display: block;
    width: 100%;
    height: 350px;
    border: none;
}

/* ==========================================
   FOOTER
   ========================================== */
footer {
    background: var(--bg-darker); color: #fff;
    padding: 4rem 5% 1.5rem 5%; text-align: center;
    border-top: 4px solid var(--accent);
}
.footer-logo {
    display: flex; align-items: center;
    justify-content: center; gap: 15px; margin-bottom: 1.5rem;
}
.footer-logo img { height: 40px; }
.footer-logo span { font-family: 'Outfit', sans-serif; font-size: 1.8rem; font-weight: 800; }
.footer-bottom {
    margin-top: 3rem; color: var(--text-muted-light);
    font-size: 0.9rem; border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1.5rem;
}

/* ==========================================
   WHATSAPP FLOATING BUTTON
   ========================================== */
.whatsapp-float {
    position: fixed;
    bottom: 30px; right: 30px;
    width: 60px; height: 60px;
    background: #25d366;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
    z-index: 999;
    transition: var(--transition);
    animation: whatsappBounce 2s ease-in-out infinite;
}
.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 25px rgba(37, 211, 102, 0.6);
}
.whatsapp-float i { color: #fff; font-size: 2rem; }
@keyframes whatsappBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

/* ==========================================
   BACK TO TOP BUTTON
   ========================================== */
#back-to-top {
    position: fixed;
    bottom: 100px; right: 34px;
    width: 45px; height: 45px;
    background: var(--bg-dark);
    color: #fff;
    border: none; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.2rem; cursor: pointer;
    z-index: 998;
    opacity: 0; visibility: hidden;
    transition: var(--transition);
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
}
#back-to-top.visible { opacity: 1; visibility: visible; }
#back-to-top:hover { background: var(--accent); transform: translateY(-3px); }

/* ==========================================
   IMAGE LIGHTBOX
   ========================================== */
/* ==========================================
   TABLE RESPONSIVENESS
   ========================================== */
.table-responsive {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin-top: 1.5rem;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
    background: #fff;
    box-shadow: 0 4px 15px rgba(0,0,0,0.02);
}
.table-responsive::-webkit-scrollbar {
    height: 6px;
}
.table-responsive::-webkit-scrollbar-track {
    background: var(--bg-alt);
}
.table-responsive::-webkit-scrollbar-thumb {
    background: var(--text-muted);
    border-radius: 3px;
}

/* ==========================================
   IMAGE LIGHTBOX
   ========================================== */
#lightbox {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(15, 23, 42, 0.98);
    z-index: 99998;
    display: flex; 
    align-items: center; 
    justify-content: space-between;
    padding: 0 3rem;
    opacity: 0; 
    visibility: hidden;
    transition: all 0.3s ease;
}
#lightbox.active { opacity: 1; visibility: visible; }

.lightbox-content {
    position: relative;
    max-width: 75%;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

#lightbox-img {
    max-width: 100%;
    max-height: 75vh;
    border-radius: 8px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
    transform: scale(0.9);
    transition: transform 0.3s ease;
    object-fit: contain;
}
#lightbox.active #lightbox-img { transform: scale(1); }

#lightbox-caption {
    color: #f8fafc;
    font-family: 'Outfit', sans-serif;
    font-size: 1.25rem;
    font-weight: 600;
    text-align: center;
    background: rgba(15, 23, 42, 0.85);
    padding: 0.6rem 1.8rem;
    border-radius: 30px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.1);
    margin-top: 1.2rem;
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

#lightbox-close {
    position: absolute;
    top: 30px; right: 30px;
    font-size: 2rem; color: #fff;
    cursor: pointer;
    width: 50px; height: 50px;
    background: rgba(255,255,255,0.1);
    border: none; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    transition: var(--transition);
    z-index: 100000;
}
#lightbox-close:hover { background: var(--accent); transform: scale(1.05); }

.lightbox-arrow {
    background: rgba(255,255,255,0.08);
    color: #fff;
    border: none;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    z-index: 99999;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}
.lightbox-arrow:hover {
    background: var(--accent);
    transform: scale(1.1);
    box-shadow: 0 4px 15px rgba(220, 38, 38, 0.35);
}

/* ==========================================
   PRODUCT SHOWCASE GALLERY
   ========================================== */
.gallery-filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    background: transparent;
    border: 2px solid #e2e8f0;
    color: var(--text-dark);
    padding: 0.6rem 1.8rem;
    border-radius: 30px;
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 0.95rem;
}

.filter-btn:hover, .filter-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
    box-shadow: 0 4px 15px rgba(220, 38, 38, 0.25);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
}

.gallery-item {
    display: block;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 1;
    transform: scale(1);
}

.gallery-item.hidden {
    display: none;
    opacity: 0;
    transform: scale(0.8);
}

.gallery-item .image-wrapper {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    aspect-ratio: 1 / 1;
    box-shadow: 0 8px 25px rgba(0,0,0,0.05);
    background: #fff;
    border: 1px solid #e2e8f0;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.gallery-item-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(15, 23, 42, 0.95) 0%, rgba(15, 23, 42, 0.65) 60%, transparent 100%);
    padding: 1.5rem;
    color: #fff;
    opacity: 0;
    transform: translateY(15px);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-item:hover .gallery-item-overlay {
    opacity: 1;
    transform: translateY(0);
}

.gallery-item-overlay h4 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: #fff;
    font-family: 'Outfit', sans-serif;
}

.gallery-item-overlay p {
    font-size: 0.85rem;
    color: rgba(248, 250, 252, 0.85);
    margin: 0;
}

/* ==========================================
   ANIMATIONS
   ========================================== */
.reveal {
    opacity: 0; transform: translateY(30px);
    transition: all 0.8s ease-out;
}
.reveal.active { opacity: 1; transform: translateY(0); }

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==========================================
   RESPONSIVE
   ========================================== */
@media (max-width: 992px) {
    .hero-title { font-size: 3rem; }
    .grid-2 { grid-template-columns: 1fr; }
    .pillars-grid { grid-template-columns: 1fr; }
    .pillars { margin-top: 40px; }
    .image-wrapper { order: -1; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .cap-tabs { flex-wrap: wrap; }
    .cap-tab { flex: 1 1 45%; }
}

@media (max-width: 768px) {
    .hamburger { 
        display: block; 
        position: relative;
        z-index: 1002;
        color: #fff;
        transition: color 0.3s ease;
    }
    .navbar.scrolled .hamburger {
        color: var(--text-dark);
    }
    .nav-links {
        position: fixed;
        top: 0; right: -100%;
        width: 100%; height: 100vh;
        background: rgba(255, 255, 255, 0.97);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 2.2rem;
        transition: right 0.5s cubic-bezier(0.77, 0, 0.175, 1);
        z-index: 1001;
        box-shadow: -10px 0 30px rgba(0,0,0,0.1);
        padding: 2rem;
    }
    .nav-links.active {
        right: 0;
    }
    .nav-links li { 
        padding: 0; 
        border: none; 
        opacity: 0;
        transform: translateX(40px);
        transition: opacity 0.4s cubic-bezier(0.165, 0.84, 0.44, 1), transform 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    }
    .nav-links.active li {
        opacity: 1;
        transform: translateX(0);
    }
    /* Staggered mobile link slide-in animation */
    .nav-links.active li:nth-child(1) { transition-delay: 0.1s; }
    .nav-links.active li:nth-child(2) { transition-delay: 0.15s; }
    .nav-links.active li:nth-child(3) { transition-delay: 0.2s; }
    .nav-links.active li:nth-child(4) { transition-delay: 0.25s; }
    .nav-links.active li:nth-child(5) { transition-delay: 0.3s; }
    .nav-links.active li:nth-child(6) { transition-delay: 0.35s; }
    .nav-links.active li:nth-child(7) { transition-delay: 0.4s; }

    .nav-links a { 
        color: var(--text-dark); 
        font-size: 1.4rem; 
        font-weight: 800; 
        font-family: 'Outfit', sans-serif;
        letter-spacing: 2px;
    }
    
    .hero-title { font-size: 2.2rem; }
    .hero-buttons { flex-direction: column; gap: 1rem; width: 100%; max-width: 320px; margin: 0 auto; }
    .hero-buttons .btn { width: 100%; text-align: center; }
    .section { padding: 60px 0; }
    
    .stats-grid { grid-template-columns: 1fr 1fr; gap: 1.5rem; }
    .stat-item .counter-number { font-size: 2.2rem; }
    
    .whatsapp-float { bottom: 20px; right: 20px; width: 50px; height: 50px; }
    .whatsapp-float i { font-size: 1.6rem; }
    #back-to-top { bottom: 80px; right: 22px; width: 40px; height: 40px; }
    
    /* Responsive Lightbox arrows on mobile */
    #lightbox {
        padding: 0 0.8rem;
    }
    .lightbox-content {
        max-width: 80%;
        max-height: 80vh;
    }
    #lightbox-img {
        max-height: 65vh;
    }
    .lightbox-arrow {
        width: 44px;
        height: 44px;
        font-size: 1.1rem;
    }
    #lightbox-caption {
        font-size: 0.9rem;
        padding: 0.4rem 1.2rem;
        margin-top: 0.8rem;
    }
}