/* ========================================
   Inner Circle - Premium Website Styles
   ======================================== */

/* === CSS Variables === */
:root {
    /* Colors */
    --color-primary: #2196F3;
    --color-primary-dark: #1976D2;
    --color-primary-light: #64B5F6;
    --color-secondary: #1a1a1a;
    --color-accent: #00BCD4;
    --color-text-dark: #1a1a1a;
    --color-text-light: #666666;
    --color-text-lighter: #999999;
    --color-bg-light: #f8f9fa;
    --color-bg-white: #ffffff;
    --color-border: #e0e0e0;
    --color-success: #4CAF50;
    --color-warning: #FF9800;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #1976D2 0%, #2196F3 100%);
    --gradient-dark: linear-gradient(135deg, #1a1a1a 0%, #2c2c2c 100%);
    --gradient-light: linear-gradient(135deg, #f8f9fa 0%, #e0e0e0 100%);
    --gradient-hero: linear-gradient(135deg, rgba(26,26,26,0.95) 0%, rgba(33,150,243,0.1) 100%);
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Playfair Display', serif;
    
    /* Spacing */
    --section-padding: 100px;
    --container-padding: 20px;
    
    /* Shadows */
    --shadow-small: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-medium: 0 4px 20px rgba(0,0,0,0.12);
    --shadow-large: 0 8px 40px rgba(0,0,0,0.15);
    --shadow-hover: 0 12px 50px rgba(33,150,243,0.2);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* === Global Styles === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-primary);
    color: var(--color-text-dark);
    line-height: 1.6;
    background-color: var(--color-bg-white);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* === Typography === */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

p {
    margin-bottom: 1rem;
}

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

/* === Buttons === */
.btn {
    display: inline-block;
    padding: 15px 40px;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition-medium);
    border: 2px solid transparent;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-medium);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background: white;
    color: var(--color-primary);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-outline:hover {
    background: var(--gradient-primary);
    color: white;
}

/* === Section Styles === */
.section {
    padding: var(--section-padding) 0;
    position: relative;
}

.section-title {
    text-align: center;
    margin-bottom: 1rem;
    color: var(--color-text-dark);
    animation: fadeInUp 0.8s ease;
}

.section-subtitle {
    text-align: center;
    font-size: 1.25rem;
    color: var(--color-text-light);
    margin-bottom: 3rem;
    animation: fadeInUp 0.8s ease 0.2s both;
}

/* === Header === */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to bottom, rgba(255, 255, 255, 1) 0%, rgba(255, 255, 255, 0.98) 100%);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-small);
    z-index: 1000;
    transition: var(--transition-medium);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 15px;
    transition: var(--transition-medium);
}

.logo:hover {
    transform: scale(1.02);
}

.logo-img {
    height: 55px;
    width: auto;
    object-fit: contain;
    display: block;
    transition: var(--transition-medium);
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.logo-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.company-name {
    font-family: 'Raleway', sans-serif;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-text-dark);
    margin: 0;
    letter-spacing: 2px;
    line-height: 1;
}

.company-tagline {
    font-family: var(--font-primary);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-primary);
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    line-height: 1;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--color-text-dark);
    font-weight: 500;
    position: relative;
    transition: var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition-medium);
}

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

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

.header-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.language-toggle {
    background: var(--gradient-primary);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition-medium);
    box-shadow: var(--shadow-small);
}

.language-toggle:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.lang-en, .lang-kr {
    opacity: 0.6;
    transition: var(--transition-fast);
}

.lang-en.active, .lang-kr.active {
    opacity: 1;
    font-size: 1.1em;
}

.lang-separator {
    margin: 0 5px;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--color-text-dark);
    cursor: pointer;
}

/* === Hero Section === */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: var(--gradient-dark);
    color: white;
    text-align: center;
    padding-top: 100px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(33,150,243,0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(33,150,243,0.1) 0%, transparent 50%),
        linear-gradient(135deg, rgba(26,26,26,1) 0%, rgba(44,44,44,1) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    animation: fadeInUp 1s ease;
}

.hero-logo {
    margin-bottom: 1.5rem;
}

.hero-logo-img {
    height: 140px;
    width: auto;
    filter: drop-shadow(0 10px 40px rgba(0,0,0,0.4));
    animation: fadeIn 1s ease;
}

.hero-company-name {
    font-family: 'Raleway', sans-serif;
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    letter-spacing: 5px;
    color: white;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    animation: fadeInUp 1s ease 0.1s both;
    text-shadow: 0 4px 20px rgba(0,0,0,0.5);
}

.hero-title {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    margin-bottom: 1rem;
    line-height: 1.3;
    animation: fadeInUp 1s ease 0.2s both;
}

.hero-subtitle {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    margin-bottom: 0.5rem;
    color: var(--color-primary-light);
    font-weight: 400;
    animation: fadeInUp 1s ease 0.4s both;
}

.hero-subtext {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: rgba(255,255,255,0.8);
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease 0.6s both;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease 0.8s both;
}

.hero-scroll {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    animation: bounce 2s infinite;
}

.hero-scroll i {
    font-size: 2rem;
    color: rgba(255,255,255,0.6);
}

/* === Problem/Solution Section === */
.problem-solution {
    background: var(--color-bg-light);
}

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

.problem-solution-card {
    background: white;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: var(--shadow-medium);
    transition: var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.problem-solution-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition-medium);
}

.problem-solution-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-large);
}

.problem-solution-card:hover::before {
    transform: scaleX(1);
}

.card-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 2rem;
    color: white;
    box-shadow: var(--shadow-medium);
}

.solution-icon {
    background: linear-gradient(135deg, #4CAF50 0%, #8BC34A 100%);
}

.card-title {
    font-size: 1.75rem;
    margin-bottom: 1rem;
    color: var(--color-text-dark);
}

.card-text {
    color: var(--color-text-light);
    font-size: 1rem;
    line-height: 1.8;
}

/* === About Section === */
.about {
    background: white;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    align-items: start;
    margin-top: 3rem;
}

.about-image {
    position: relative;
}

.paul-image {
    width: 100%;
    border-radius: 20px;
    box-shadow: var(--shadow-large);
    transition: var(--transition-medium);
}

.paul-image:hover {
    transform: scale(1.02);
}

.about-image-badge {
    position: absolute;
    bottom: 20px;
    right: 20px;
    background: var(--gradient-primary);
    color: white;
    padding: 15px 25px;
    border-radius: 50px;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: var(--shadow-medium);
    font-weight: 600;
}

.about-intro {
    font-size: 1.25rem;
    color: var(--color-text-light);
    margin-bottom: 2rem;
    font-style: italic;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.about-feature {
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem;
    background: var(--color-bg-light);
    border-radius: 15px;
    transition: var(--transition-medium);
}

.about-feature:hover {
    background: white;
    box-shadow: var(--shadow-medium);
    transform: translateX(10px);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: white;
    font-size: 1.5rem;
    box-shadow: var(--shadow-small);
}

.feature-content h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--color-text-dark);
}

.feature-content p {
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: 0;
}

/* === Services Section === */
.services {
    background: var(--color-bg-light);
}

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

.service-card {
    background: white;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: var(--shadow-medium);
    transition: var(--transition-medium);
    position: relative;
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-large);
}

.premium-card {
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    border: 2px solid var(--color-primary);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-medium);
}

.premium-icon {
    background: linear-gradient(135deg, #FF9800 0%, #FF5722 100%);
}

.service-title {
    font-size: 1.75rem;
    margin-bottom: 1rem;
}

.service-badge {
    display: inline-block;
    padding: 5px 15px;
    background: var(--gradient-primary);
    color: white;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.premium-badge {
    background: linear-gradient(135deg, #FF9800 0%, #FF5722 100%);
}

.service-description {
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.service-features {
    list-style: none;
    margin-bottom: 2rem;
}

.service-features li {
    padding: 0.75rem 0;
    color: var(--color-text-light);
    display: flex;
    align-items: center;
    gap: 10px;
}

.service-features i {
    color: var(--color-primary);
    font-size: 1.2rem;
}

/* === Network Section === */
.network {
    background: linear-gradient(135deg, #1a1a1a 0%, #2c2c2c 100%);
    color: white;
}

.network .section-title,
.network .section-subtitle {
    color: white;
}

.network-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.network-card {
    background: rgba(255,255,255,0.05);
    backdrop-filter: blur(10px);
    padding: 2.5rem;
    border-radius: 20px;
    border: 1px solid rgba(255,255,255,0.1);
    transition: var(--transition-medium);
    text-align: center;
}

.network-card:hover {
    background: rgba(255,255,255,0.1);
    transform: translateY(-10px);
    border-color: var(--color-primary);
}

.network-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    margin: 0 auto 1.5rem;
    box-shadow: var(--shadow-medium);
}

.network-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: white;
}

.network-card p {
    color: rgba(255,255,255,0.8);
    line-height: 1.8;
}

/* === Testimonials Section === */
.testimonials {
    background: var(--color-bg-light);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.testimonial-card {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow-medium);
    transition: var(--transition-medium);
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-large);
}

.featured-testimonial {
    grid-column: span 1;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    border: 2px solid var(--color-primary);
}

.testimonial-stars {
    color: #FFD700;
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.testimonial-text {
    font-size: 1.1rem;
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 2rem;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding-top: 1.5rem;
    border-top: 2px solid var(--color-border);
}

.author-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
}

.author-image {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
}

.author-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.author-info h4 {
    font-size: 1.1rem;
    color: var(--color-text-dark);
    margin-bottom: 0.25rem;
}

.author-info p {
    font-size: 0.9rem;
    color: var(--color-text-lighter);
    margin-bottom: 0;
}

.placeholder-testimonial {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 250px;
    background: var(--gradient-light);
}

.testimonial-icon {
    width: 80px;
    height: 80px;
    background: rgba(33,150,243,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--color-primary);
    margin: 0 auto 1rem;
}

.testimonial-placeholder {
    text-align: center;
    color: var(--color-text-lighter);
    font-style: italic;
}

/* === Contact Section === */
.contact {
    background: white;
}

.contact-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 4rem;
    margin-top: 3rem;
}

.contact-form {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

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

.form-group.full-width {
    grid-column: span 2;
}

.form-group label {
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--color-text-dark);
}

.form-group input,
.form-group textarea {
    padding: 15px;
    border: 2px solid var(--color-border);
    border-radius: 10px;
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(33,150,243,0.1);
}

.btn-submit {
    grid-column: span 2;
    margin-top: 1rem;
}

.contact-info {
    background: var(--color-bg-light);
    padding: 2.5rem;
    border-radius: 20px;
    height: fit-content;
}

.contact-info h3 {
    margin-bottom: 2rem;
    color: var(--color-text-dark);
}

.contact-info-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--color-border);
}

.contact-info-item:last-of-type {
    border-bottom: none;
}

.contact-info-item i {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}

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

.contact-info-item a {
    color: var(--color-primary);
    font-weight: 500;
}

.contact-info-item a:hover {
    text-decoration: underline;
}

.contact-info-item p {
    color: var(--color-text-light);
    margin-bottom: 0;
}

.contact-cta {
    background: rgba(33,150,243,0.1);
    padding: 1.5rem;
    border-radius: 10px;
    text-align: center;
    margin-top: 2rem;
}

.contact-cta i {
    font-size: 2rem;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.contact-cta p {
    color: var(--color-text-light);
    font-size: 0.9rem;
    margin-bottom: 0;
}

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

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

.footer-logo {
    height: 50px;
    width: auto;
    object-fit: contain;
    margin-bottom: 1rem;
    filter: brightness(1.1);
}

.footer-tagline {
    color: rgba(255,255,255,0.7);
    font-size: 0.9rem;
}

.footer-links h4,
.footer-contact h4,
.footer-language h4 {
    margin-bottom: 1rem;
    color: white;
}

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

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: rgba(255,255,255,0.7);
    transition: var(--transition-fast);
}

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

.footer-contact p {
    color: rgba(255,255,255,0.7);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-contact i {
    color: var(--color-primary);
}

.language-toggle-footer {
    background: rgba(255,255,255,0.1);
    color: white;
    border: 1px solid rgba(255,255,255,0.2);
    padding: 10px 20px;
    border-radius: 25px;
    cursor: pointer;
    transition: var(--transition-medium);
    display: flex;
    align-items: center;
    gap: 10px;
}

.language-toggle-footer:hover {
    background: rgba(255,255,255,0.2);
}

.lang-en-footer, .lang-kr-footer {
    opacity: 0.6;
    transition: var(--transition-fast);
}

.lang-en-footer.active, .lang-kr-footer.active {
    opacity: 1;
    font-weight: 600;
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    text-align: center;
}

.footer-bottom p {
    color: rgba(255,255,255,0.6);
    font-size: 0.9rem;
    margin-bottom: 0;
}

/* === Animations === */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

@keyframes bounce {
    0%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    50% {
        transform: translateX(-50%) translateY(-10px);
    }
}

/* === Responsive Design === */
@media (max-width: 992px) {
    :root {
        --section-padding: 60px;
    }
    
    .nav {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .hero-buttons {
        flex-direction: column;
    }
    
    .logo {
        gap: 10px;
    }
    
    .company-name {
        font-size: 1.2rem;
        letter-spacing: 1.5px;
    }
    
    .company-tagline {
        font-size: 0.65rem;
    }
    
    .contact-form {
        grid-template-columns: 1fr;
    }
    
    .form-group.full-width {
        grid-column: span 1;
    }
    
    .btn-submit {
        grid-column: span 1;
    }
    
    .problem-solution-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .network-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 480px) {
    .logo {
        gap: 8px;
    }
    
    .logo-img {
        height: 45px;
    }
    
    .company-name {
        font-size: 1rem;
        letter-spacing: 1px;
    }
    
    .company-tagline {
        font-size: 0.6rem;
        letter-spacing: 1px;
    }
    
    .hero-logo-img {
        height: 80px;
    }
    
    .language-toggle {
        padding: 8px 15px;
        font-size: 0.9rem;
    }
}