/* ========================================
   Subservices S.L. - Estilos Principales
   ======================================== */

/* Variables CSS */
:root {
    --color-primary: #0ea5e9;
    --color-primary-dark: #0284c7;
    --color-primary-light: #7dd3fc;
    --color-accent: #06b6d4;
    --color-bg: #ffffff;
    --color-bg-alt: #f8fafc;
    --color-bg-dark: #f1f5f9;
    --color-text: #334155;
    --color-text-light: #64748b;
    --color-text-dark: #1e293b;
    --color-border: #e2e8f0;
    --color-white: #ffffff;
    --color-success: #10b981;

    --font-main: 'Segoe UI', system-ui, -apple-system, sans-serif;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --radius: 0.5rem;
    --radius-lg: 1rem;
    --transition: all 0.3s ease;
}

/* Reset y Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-main);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
}

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

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

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

/* Utilidades */
.hidden {
    display: none !important;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 5rem 0;
}

.section-alt {
    background-color: var(--color-bg-alt);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-text-dark);
    text-align: center;
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-light);
    text-align: center;
    max-width: none;
    margin: 0 auto 3rem;
    white-space: nowrap;
}

/* ========================================
   Header / Navegación
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--color-white);
    box-shadow: var(--shadow);
    z-index: 1000;
    transition: var(--transition);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo img {
    height: 45px;
    width: auto;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-dark);
}

.nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

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

.nav-link {
    display: block;
    padding: 0.5rem 1rem;
    color: var(--color-text);
    font-weight: 500;
    border-radius: var(--radius);
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-primary);
    background-color: var(--color-bg-alt);
}

.lang-toggle {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.375rem;
    background: var(--color-bg-alt);
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
}

.lang-btn {
    padding: 0.375rem 0.75rem;
    border: none;
    background: transparent;
    color: var(--color-text-light);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: 0.25rem;
    transition: var(--transition);
}

.lang-btn.active {
    background: var(--color-primary);
    color: var(--color-white);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 0.5rem;
    background: none;
    border: none;
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: var(--transition);
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    position: relative;
    min-height: 75vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    color: var(--color-white);
    text-align: center;
    overflow: hidden;
}

.hero-video {
    position: absolute;
    top: 0;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    transform: translateX(-50%);
    object-fit: cover;
    z-index: 0;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.45);
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    padding: 2rem;
}

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.hero-subtitle {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    background: var(--color-white);
    color: var(--color-primary);
    font-weight: 600;
    font-size: 1.125rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
}

.hero-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.1);
    color: var(--color-primary-dark);
}

/* ========================================
   About Section
   ======================================== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-image {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.about-content h3 {
    font-size: 1.75rem;
    color: var(--color-text-dark);
    margin-bottom: 1.5rem;
}

.about-content p {
    margin-bottom: 1.25rem;
    color: var(--color-text);
    text-align: justify;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--color-border);
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-top: 0.5rem;
}

/* ========================================
   Services Section
   ======================================== */
.services-categories {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    align-items: start;
}

.service-category {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    border: 1px solid var(--color-border);
    overflow: hidden;
}

.service-category-header {
    padding: 1.5rem;
}

.service-category-img {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    border-radius: var(--radius);
    margin-bottom: 1.25rem;
}

.service-category-title {
    font-size: 1.5rem;
    font-weight: 800;
    text-transform: uppercase;
    color: #dc2626;
    margin-bottom: 0.75rem;
    letter-spacing: 0.02em;
}

.service-category-desc {
    font-size: 0.9375rem;
    color: var(--color-text);
    line-height: 1.6;
}

.service-sublist {
    list-style: none;
    padding: 0;
    margin: 0;
}

.service-sub-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--color-border);
    cursor: pointer;
    transition: background 0.2s ease;
}

.service-sub-item:hover {
    background: var(--color-bg-alt);
}

.service-sub-name {
    font-size: 0.9375rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--color-text-dark);
    letter-spacing: 0.01em;
}

.service-sub-icon {
    color: var(--color-primary);
    flex-shrink: 0;
    margin-left: 1rem;
    transition: transform 0.2s ease;
}

.service-sub-item:hover .service-sub-icon {
    transform: scale(1.15);
}

/* Service Detail Modal */
.service-modal {
    display: none;
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 2000;
    background: rgba(0, 0, 0, 0.7);
    -webkit-backdrop-filter: blur(4px);
    backdrop-filter: blur(4px);
    align-items: center;
    justify-content: center;
}

.service-modal.active {
    display: flex;
}

.service-modal-content {
    position: relative;
    width: 90vw;
    max-width: 700px;
    max-height: 90vh;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.4);
    display: flex;
    flex-direction: column;
    animation: serviceModalIn 0.3s ease;
}

@keyframes serviceModalIn {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.97);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.service-modal-close {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    z-index: 10;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-text-dark);
    color: var(--color-white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease;
}

.service-modal-close:hover {
    background: var(--color-primary);
    transform: scale(1.1);
}

.service-modal-img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

.service-modal-body {
    padding: 1.5rem 2rem 2rem;
    overflow-y: auto;
}

.service-modal-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text-dark);
    margin-bottom: 0.75rem;
    text-transform: uppercase;
}

.service-modal-desc {
    font-size: 0.9375rem;
    color: var(--color-text);
    line-height: 1.7;
}

/* ========================================
   Certifications Section
   ======================================== */
.certifications-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    align-items: start;
}

.cert-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 2rem 1.5rem;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    transition: box-shadow 0.4s ease, border-color 0.4s ease, transform 0.4s ease;
    min-height: 140px;
    cursor: pointer;
}

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

.cert-item img {
    max-height: 60px;
    max-width: 120px;
    object-fit: contain;
    margin-bottom: 0.5rem;
}

.cert-name {
    font-size: 0.8125rem;
    color: var(--color-text-light);
    transition: color 0.3s ease;
}

.cert-item:hover .cert-name {
    color: var(--color-text-dark);
    font-weight: 600;
}

.cert-details-wrapper {
    width: 100%;
    height: 0;
    overflow: hidden;
    transition: height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.cert-details-inner {
    padding-top: 1rem;
    text-align: center;
}

.cert-description {
    font-size: 0.8125rem;
    color: var(--color-text-light);
    text-align: center;
    line-height: 1.5;
    margin-bottom: 0.75rem;
}

.cert-view-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: var(--color-white);
    border: none;
    border-radius: var(--radius);
    font-size: 0.8125rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: opacity 0.2s ease, box-shadow 0.2s ease;
    -webkit-appearance: none;
    font-family: inherit;
}

.cert-view-btn:hover {
    opacity: 0.85;
    box-shadow: var(--shadow-md);
}

.cert-view-btn svg {
    flex-shrink: 0;
}

/* PDF Viewer Modal */
.pdf-modal {
    display: none;
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 2000;
    background: rgba(0, 0, 0, 0.8);
    -webkit-backdrop-filter: blur(4px);
    backdrop-filter: blur(4px);
    align-items: center;
    justify-content: center;
}

.pdf-modal.active {
    display: flex;
}

.pdf-modal-content {
    position: relative;
    width: 90vw;
    height: 90vh;
    max-width: 900px;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.4);
}

.pdf-modal-close {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    z-index: 10;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-text-dark);
    color: var(--color-white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease;
}

.pdf-modal-close:hover {
    background: var(--color-primary);
    transform: scale(1.1);
}

.pdf-modal-iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* ========================================
   Gallery Section
   ======================================== */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.gallery-item {
    position: relative;
    aspect-ratio: 4/3;
    border-radius: var(--radius);
    overflow: hidden;
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.gallery-item::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.5) 0%, transparent 50%);
    opacity: 0;
    transition: var(--transition);
}

.gallery-item:hover img {
    transform: scale(1.05);
}

.gallery-item:hover::after {
    opacity: 1;
}

.gallery-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1rem;
    color: var(--color-white);
    font-size: 0.875rem;
    font-weight: 500;
    transform: translateY(100%);
    transition: var(--transition);
    z-index: 1;
}

.gallery-item:hover .gallery-caption {
    transform: translateY(0);
}

/* Lightbox */
.lightbox {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background: rgba(0, 0, 0, 0.95);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.lightbox.active {
    opacity: 1;
    visibility: visible;
}

.lightbox-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 85vh;
    object-fit: contain;
    border-radius: var(--radius);
}

.lightbox-caption {
    text-align: center;
    color: var(--color-white);
    padding: 1rem;
    font-size: 1rem;
}

.lightbox-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    color: var(--color-white);
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.2);
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    color: var(--color-white);
    font-size: 1.25rem;
    cursor: pointer;
    transition: var(--transition);
}

.lightbox-nav:hover {
    background: rgba(255, 255, 255, 0.2);
}

.lightbox-prev {
    left: 1rem;
}

.lightbox-next {
    right: 1rem;
}

/* ========================================
   Contact Section
   ======================================== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info h3 {
    font-size: 1.5rem;
    color: var(--color-text-dark);
    margin-bottom: 1.5rem;
}

.contact-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.contact-item-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-alt);
    border-radius: var(--radius);
    color: var(--color-primary);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.contact-item-content h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-dark);
    margin-bottom: 0.25rem;
}

.contact-item-content p {
    font-size: 0.9375rem;
    color: var(--color-text-light);
}

.contact-item-content a {
    color: var(--color-primary);
}

.contact-cta {
    background: var(--color-white);
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border);
}

.contact-cta h3 {
    font-size: 1.5rem;
    color: var(--color-text-dark);
    margin-bottom: 1rem;
}

.contact-cta p {
    color: var(--color-text-light);
    margin-bottom: 2rem;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    color: var(--color-white);
    font-weight: 600;
    font-size: 1rem;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: var(--color-white);
}

.contact-links {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border);
}

.contact-links a {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

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

.team-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-top: 2rem;
}

.team-card {
    background: var(--color-bg-alt);
    padding: 1.5rem;
    border-radius: var(--radius);
}

.team-card h4 {
    font-size: 0.875rem;
    color: var(--color-primary);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.team-card .name {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text-dark);
}

.team-card .phone {
    font-size: 0.9375rem;
    color: var(--color-text-light);
    margin-top: 0.25rem;
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: var(--color-text-dark);
    color: var(--color-white);
    padding: 3rem 0 1.5rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.footer-logo img {
    height: 40px;
    filter: brightness(0) invert(1);
}

.footer-logo span {
    font-size: 1.25rem;
    font-weight: 700;
}

.footer-nav {
    display: flex;
    gap: 2rem;
}

.footer-nav a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9375rem;
}

.footer-nav a:hover {
    color: var(--color-white);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1.5rem;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.5);
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 1024px) {
    .services-categories {
        gap: 1.5rem;
    }

    .certifications-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .gallery-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-list {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--color-white);
        flex-direction: column;
        padding: 2rem;
        gap: 0.5rem;
        transform: translateX(100%);
        transition: var(--transition);
    }

    .nav-list.active {
        transform: translateX(0);
    }

    .nav-link {
        padding: 1rem;
        font-size: 1.125rem;
    }

    .menu-toggle {
        display: flex;
    }

    .lang-toggle {
        position: absolute;
        top: 100%;
        right: 1.5rem;
        margin-top: 1rem;
    }

    .nav-list.active + .lang-toggle {
        position: fixed;
        bottom: 2rem;
        top: auto;
        left: 50%;
        transform: translateX(-50%);
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.125rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .section-subtitle {
        white-space: normal;
        max-width: 100%;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .about-image {
        order: -1;
    }

    .about-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 1rem;
    }

    .stat-number {
        font-size: 2rem;
    }

    .services-categories {
        grid-template-columns: 1fr;
    }

    .service-modal-content {
        max-width: 100%;
        width: 100%;
        max-height: 95vh;
        border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        align-self: flex-end;
        animation: serviceModalSlideUp 0.3s ease;
    }

    @keyframes serviceModalSlideUp {
        from {
            opacity: 0;
            transform: translateY(100%);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    .certifications-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .team-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }

    .footer-nav {
        flex-wrap: wrap;
        justify-content: center;
        gap: 1rem;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .section {
        padding: 3rem 0;
    }

    .about-stats {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .certifications-grid {
        grid-template-columns: 1fr;
    }

    .lightbox-nav {
        display: none;
    }
}

/* ========================================
   Animations
   ======================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-in {
    animation: fadeInUp 0.6s ease forwards;
}

/* Scroll reveal */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}