/* ============================================
   MiSitioMX.com - Modern Technology Website
   Cyberpunk Theme with Glass Morphism
   ============================================ */

:root {
    --primary-color: #00e5ff;
    --secondary-color: #ff00ff;
    --accent-color: #7000ff;
    --dark-bg: #0a0a1a;
    --card-bg: rgba(26, 26, 46, 0.7);
    --glass-bg: rgba(255, 255, 255, 0.05);
    --text-primary: #ffffff;
    --text-secondary: #b0b0c8;
    --gradient-1: linear-gradient(135deg, #00e5ff 0%, #7000ff 100%);
    --gradient-2: linear-gradient(135deg, #ff00ff 0%, #00e5ff 100%);
    --shadow-glow: 0 0 30px rgba(0, 229, 255, 0.3);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 20% 50%, rgba(0, 229, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 0, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(112, 0, 255, 0.08) 0%, transparent 50%);
    z-index: -1;
    pointer-events: none;
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */

header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(10, 10, 26, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 229, 255, 0.1);
    transition: var(--transition);
}

header.scrolled {
    background: rgba(10, 10, 26, 0.95);
    box-shadow: 0 5px 30px rgba(0, 229, 255, 0.2);
}

nav {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.site-logo {
    height: 50px;
    width: auto;
    filter: drop-shadow(0 0 10px rgba(0, 229, 255, 0.5));
    transition: var(--transition);
}

.site-logo:hover {
    filter: drop-shadow(0 0 20px rgba(0, 229, 255, 0.8));
    transform: scale(1.05);
}

.site-name {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    transition: var(--transition);
    padding: 0.5rem 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-1);
    transition: var(--transition);
    pointer-events: none;
}

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

.nav-links a:hover::after {
    width: 100%;
}

.header-phone {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1.1rem;
    text-decoration: none;
    padding: 0.75rem 1.5rem;
    background: rgba(0, 229, 255, 0.1);
    border: 1px solid var(--primary-color);
    border-radius: 25px;
    transition: var(--transition);
}

.header-phone:hover {
    background: rgba(0, 229, 255, 0.2);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--primary-color);
    font-size: 1.8rem;
    cursor: pointer;
    transition: var(--transition);
}

.mobile-menu-toggle:hover {
    transform: scale(1.1);
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 8rem 2rem 4rem;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        linear-gradient(135deg, rgba(0, 229, 255, 0.05) 0%, rgba(112, 0, 255, 0.05) 100%),
        url('../img/img_hero.jpg') center/cover no-repeat;
    background-blend-mode: overlay;
    z-index: -1;
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, transparent 0%, var(--dark-bg) 100%);
    z-index: -1;
    pointer-events: none;
}

.hero-content {
    max-width: 1200px;
    text-align: center;
    z-index: 1;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
    text-shadow: 0 0 30px rgba(0, 229, 255, 0.3);
}

.hero .lead {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    line-height: 1.8;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 50px;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
    pointer-events: none;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--gradient-1);
    color: #fff;
    box-shadow: 0 10px 30px rgba(0, 229, 255, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 15px 40px rgba(0, 229, 255, 0.5);
    transform: translateY(-3px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(0, 229, 255, 0.1);
    box-shadow: 0 10px 30px rgba(0, 229, 255, 0.3);
    transform: translateY(-3px);
}

/* ============================================
   SECTIONS
   ============================================ */

section {
    padding: 6rem 2rem;
    position: relative;
}

.section-title {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title h2 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-title p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
}

/* ============================================
   GLASS CARDS
   ============================================ */

.card {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 2rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-1);
    opacity: 0;
    transition: var(--transition);
    pointer-events: none;
}

.card:hover {
    transform: translateY(-10px);
    border-color: rgba(0, 229, 255, 0.5);
    box-shadow: 0 20px 60px rgba(0, 229, 255, 0.2);
}

.card:hover::before {
    opacity: 0.05;
}

/* ============================================
   SERVICES GRID
   ============================================ */

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.service-card {
    text-align: center;
}

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: var(--gradient-1);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    box-shadow: var(--shadow-glow);
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.service-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.service-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 15px;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(0, 229, 255, 0.2);
}

/* ============================================
   TEAM SECTION
   ============================================ */

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.team-member {
    text-align: center;
}

.team-photo {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 1.5rem;
    border: 3px solid var(--primary-color);
    box-shadow: 0 10px 40px rgba(0, 229, 255, 0.3);
    transition: var(--transition);
}

.team-member:hover .team-photo {
    transform: scale(1.05);
    box-shadow: 0 15px 50px rgba(0, 229, 255, 0.5);
}

.team-member h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.team-member .role {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

/* ============================================
   TESTIMONIALS
   ============================================ */

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.testimonial-card {
    position: relative;
    padding-top: 3rem;
}

.testimonial-photo {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    position: absolute;
    top: -40px;
    left: 50%;
    transform: translateX(-50%);
    border: 3px solid var(--primary-color);
    box-shadow: var(--shadow-glow);
}

.testimonial-card p {
    font-style: italic;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.testimonial-author {
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

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

/* ============================================
   BLOG GRID
   ============================================ */

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

.blog-card {
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.blog-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
    border-radius: 15px 15px 0 0;
    transition: var(--transition);
}

.blog-card:hover .blog-image {
    transform: scale(1.05);
}

.blog-content {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.blog-date {
    color: var(--primary-color);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.blog-card h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.blog-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.8;
    flex-grow: 1;
}

/* ============================================
   CONTACT FORM
   ============================================ */

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 3rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: start;
    gap: 1.5rem;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-1);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.contact-item h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.contact-item p,
.contact-item a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

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

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 600;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea {
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 20px rgba(0, 229, 255, 0.2);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

/* ============================================
   FOOTER
   ============================================ */

footer {
    background: rgba(10, 10, 26, 0.95);
    border-top: 1px solid rgba(0, 229, 255, 0.1);
    padding: 4rem 2rem 2rem;
    margin-top: 6rem;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h3 {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.footer-section p,
.footer-section a {
    color: var(--text-secondary);
    text-decoration: none;
    line-height: 1.8;
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--primary-color);
    padding-left: 5px;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.75rem;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-link {
    width: 45px;
    height: 45px;
    background: rgba(0, 229, 255, 0.1);
    border: 1px solid var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--primary-color);
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary-color);
    color: var(--dark-bg);
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
}

.footer-bottom {
    max-width: 1400px;
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: var(--text-secondary);
}

/* ============================================
   COOKIE BANNER
   ============================================ */

.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(10, 10, 26, 0.98);
    backdrop-filter: blur(20px);
    border-top: 1px solid rgba(0, 229, 255, 0.2);
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
    z-index: 9999;
    box-shadow: 0 -5px 30px rgba(0, 229, 255, 0.1);
    transform: translateY(100%);
    transition: transform 0.5s ease;
}

.cookie-banner.show {
    transform: translateY(0);
}

.cookie-banner p {
    color: var(--text-secondary);
    margin: 0;
    flex: 1;
}

.cookie-banner a {
    color: var(--primary-color);
    text-decoration: none;
}

.cookie-buttons {
    display: flex;
    gap: 1rem;
}

.cookie-banner .btn {
    padding: 0.75rem 1.5rem;
    font-size: 0.95rem;
}

/* ============================================
   MAP
   ============================================ */

.map-container {
    margin-top: 3rem;
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid rgba(0, 229, 255, 0.2);
    height: 400px;
}

.map-container iframe {
    width: 100%;
    height: 100%;
    border: none;
    filter: grayscale(100%) invert(90%) contrast(80%);
}

/* ============================================
   ARTICLE PAGE
   ============================================ */

.article-hero {
    padding: 10rem 2rem 4rem;
    text-align: center;
}

.article-hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.article-meta {
    display: flex;
    justify-content: center;
    gap: 2rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.article-featured-image {
    width: 100%;
    max-width: 1200px;
    height: 500px;
    object-fit: cover;
    border-radius: 20px;
    margin: 3rem auto;
    display: block;
    border: 1px solid rgba(0, 229, 255, 0.2);
}

.article-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem;
}

.article-content h2 {
    font-size: 2rem;
    margin: 2.5rem 0 1.5rem;
    color: var(--primary-color);
}

.article-content h3 {
    font-size: 1.5rem;
    margin: 2rem 0 1rem;
    color: var(--primary-color);
}

.article-content p {
    margin-bottom: 1.5rem;
    line-height: 1.9;
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.article-content ul,
.article-content ol {
    margin: 1.5rem 0 1.5rem 2rem;
    color: var(--text-secondary);
}

.article-content li {
    margin-bottom: 0.75rem;
    line-height: 1.8;
}

.author-section {
    margin-top: 4rem;
    padding: 2rem;
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    display: flex;
    gap: 2rem;
    align-items: center;
}

.author-photo {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--primary-color);
}

.author-info h3 {
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.author-info p {
    color: var(--text-secondary);
    margin: 0;
}

.related-articles {
    margin-top: 4rem;
}

.related-articles h2 {
    text-align: center;
    margin-bottom: 2rem;
}

/* ============================================
   SERVICE PAGE
   ============================================ */

.service-hero {
    padding: 10rem 2rem 4rem;
    text-align: center;
    background:
        linear-gradient(135deg, rgba(0, 229, 255, 0.05) 0%, rgba(112, 0, 255, 0.05) 100%);
}

.service-hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
}

.service-hero .lead {
    font-size: 1.3rem;
    color: var(--text-secondary);
    max-width: 800px;
    margin: 0 auto;
}

.service-details {
    max-width: 1200px;
    margin: 0 auto;
}

.service-features {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 3rem;
    margin: 3rem 0;
}

.service-features h2 {
    color: var(--primary-color);
    margin-bottom: 2rem;
}

.features-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-item {
    display: flex;
    gap: 1rem;
}

.feature-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1.3rem;
}

.feature-item h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.feature-item p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.service-cta {
    text-align: center;
    padding: 4rem 2rem;
}

.service-cta h2 {
    margin-bottom: 1.5rem;
}

/* ============================================
   STATS SECTION
   ============================================ */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.stat-card {
    text-align: center;
    padding: 2rem;
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 1024px) {
    .hero h1 {
        font-size: 3rem;
    }

    .section-title h2 {
        font-size: 2.5rem;
    }

    .contact-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    nav {
        flex-wrap: wrap;
        padding: 1rem;
    }

    .nav-links {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: rgba(10, 10, 26, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: start;
        padding: 2rem;
        transition: var(--transition);
        border-top: 1px solid rgba(0, 229, 255, 0.2);
    }

    .nav-links.active {
        left: 0;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .header-phone {
        width: 100%;
        justify-content: center;
        margin-top: 1rem;
    }

    .hero {
        padding: 6rem 1.5rem 3rem;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero .lead {
        font-size: 1.2rem;
    }

    .hero-cta {
        flex-direction: column;
        gap: 1rem;
    }

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

    .footer-content {
        grid-template-columns: 1fr;
    }

    .cookie-banner {
        flex-direction: column;
        text-align: center;
    }

    .author-section {
        flex-direction: column;
        text-align: center;
    }

    .article-hero h1 {
        font-size: 2rem;
    }

    .service-hero h1 {
        font-size: 2.5rem;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }

    .section-title h2 {
        font-size: 2rem;
    }

    .btn {
        padding: 0.875rem 1.75rem;
        font-size: 1rem;
    }
}

/* ============================================
   ANIMATIONS (AOS Library Support)
   ============================================ */

[data-aos] {
    opacity: 0;
    transition-property: opacity, transform;
}

[data-aos].aos-animate {
    opacity: 1;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

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

.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }
.mt-4 { margin-top: 4rem; }

.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }
.mb-4 { margin-bottom: 4rem; }

.hidden {
    display: none;
}