:root {
    --primary-color: #f68800;
    --primary-dark: #d97400;
    --primary-light: #ffa033;
    --accent-color: #f68800;
    --success-color: #10b981;
    --danger-color: #ef4444;

    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;

    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-heading: 'Poppins', 'Inter', sans-serif;

    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;

    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
}

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

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

body {
    font-family: var(--font-primary);
    color: var(--gray-800);
    background-color: #ffffff;
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--gray-900);
}

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

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

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

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    z-index: 1000;
    transition: all var(--transition-base);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
    max-width: 1200px;
    margin: 0 auto;
    padding-left: var(--space-md);
    padding-right: var(--space-md);
}

.nav-brand {
    display: flex;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    color: var(--gray-900);
    text-decoration: none;
}

.logo-img {
    height: 45px;
    width: auto;
    object-fit: contain;
}

.logo-img-footer {
    height: 40px;
}

.logo-icon {
    width: 48px;
    height: 48px;
    background: var(--primary-color);
    color: white;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    font-weight: 800;
    margin-right: 0.75rem;
    box-shadow: var(--shadow-md);
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    color: #0f172a !important;
    display: inline-block;
}

.logo-text .highlight {
    color: var(--primary-color);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--gray-700);
    position: relative;
    transition: color var(--transition-base);
    white-space: nowrap;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width var(--transition-base);
}

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

.cta-button {
    background: var(--primary-color);
    color: white !important;
    padding: 0.625rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.cta-button:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.cta-button::after {
    display: none;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--gray-700);
    margin: 3px 0;
    transition: var(--transition-base);
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
}

.hero-gradient {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg,
        rgba(246, 136, 0, 0.03) 0%,
        rgba(246, 136, 0, 0.05) 25%,
        rgba(255, 204, 153, 0.03) 50%,
        rgba(255, 255, 255, 0) 100%);
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        radial-gradient(circle at 20% 50%, rgba(246, 136, 0, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(246, 136, 0, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(255, 204, 153, 0.06) 0%, transparent 50%);
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    33% { transform: translateY(-20px) rotate(1deg); }
    66% { transform: translateY(20px) rotate(-1deg); }
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    padding: var(--space-2xl) 0;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    margin-bottom: var(--space-md);
    line-height: 1.1;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray-600);
    margin-bottom: var(--space-xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-color);
    display: block;
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.95rem;
    color: var(--gray-600);
}

.hero-actions {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    margin-bottom: var(--space-xl);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
    text-decoration: none;
}

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

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

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

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1.125rem;
}

.btn-icon {
    width: 20px;
    height: 20px;
    margin-right: 0.5rem;
}

.hero-scroll {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
}

.scroll-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--gray-500);
    font-size: 0.875rem;
    cursor: pointer;
    animation: bounce 2s ease-in-out infinite;
}

.scroll-arrow {
    width: 24px;
    height: 24px;
    border-right: 2px solid var(--gray-400);
    border-bottom: 2px solid var(--gray-400);
    transform: rotate(45deg);
}

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

.section-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: var(--space-md);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
}

.features {
    padding: var(--space-3xl) 0;
    background: var(--gray-50);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-lg);
}

.feature-card {
    background: white;
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

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

.feature-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, rgba(246, 136, 0, 0.1), rgba(246, 136, 0, 0.05));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-md);
}

.feature-icon svg {
    width: 32px;
    height: 32px;
    stroke: var(--primary-color);
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
}

.feature-card p {
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: var(--space-sm);
}

.feature-metric {
    font-size: 0.8rem;
    font-weight: 500;
    color: #d97400;
    background: linear-gradient(135deg, #fff5e6 0%, #ffe4cc 100%);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    display: inline-block;
    margin-top: 0.5rem;
    border: 1px solid #ffcc99;
    box-shadow: 0 2px 4px rgba(246, 136, 0, 0.1);
    font-style: italic;
}

.feature-benefit {
    font-size: 0.8rem;
    font-weight: 500;
    color: #d97400;
    background: #fff5e6;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    display: inline-block;
    margin-top: 1.5rem;
    border: 1px solid #ffcc99;
    box-shadow: 0 2px 4px rgba(246, 136, 0, 0.1);
    font-style: italic;
}

.business-value {
    font-size: 0.8rem;
    font-weight: 500;
    color: #059669;
    background: linear-gradient(135deg, #ecfdf5 0%, #d1fae5 100%);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    display: inline-block;
    margin-top: 0.5rem;
    border: 1px solid #a7f3d0;
    box-shadow: 0 2px 4px rgba(16, 185, 129, 0.1);
    font-style: italic;
}

.industry-focus {
    margin-top: var(--space-2xl);
    text-align: center;
}

.industry-focus h4 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: var(--space-md);
}

.industry-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-sm);
}

.industry-tag {
    background: var(--gray-100);
    color: var(--gray-700);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transition-base);
    border: 1px solid var(--gray-200);
}

.industry-tag:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.expertise {
    padding: var(--space-3xl) 0;
    background: var(--gray-50);
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-xl);
    margin-top: var(--space-2xl);
}

.expertise-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
    border: 1px solid var(--gray-200);
}

.expertise-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.expertise-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, var(--primary-light), var(--primary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-lg);
    color: white;
}

.expertise-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--space-md);
}

.expertise-card p {
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: var(--space-lg);
}

.expertise-highlights {
    list-style: none;
    padding: 0;
}

.expertise-highlights li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--gray-700);
    font-weight: 500;
}

.expertise-highlights li::before {
    content: '\u2713';
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
    font-size: 1.1rem;
}

.advantages {
    padding: var(--space-3xl) 0;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-xl);
}

.advantage-item {
    position: relative;
    padding-left: 3rem;
}

.advantage-number {
    position: absolute;
    left: 0;
    top: 0;
    font-size: 3rem;
    font-weight: 800;
    color: rgba(37, 99, 235, 0.1);
    line-height: 1;
}

.advantage-item h3 {
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
}

.advantage-item p {
    color: var(--gray-600);
    margin-bottom: var(--space-md);
}

.advantage-list {
    list-style: none;
}

.advantage-list li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--gray-700);
}

.advantage-list li::before {
    content: '\u2713';
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
}

.cases {
    padding: var(--space-3xl) 0;
    background: var(--gray-50);
}

.cases-slider {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.case-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    box-shadow: var(--shadow-lg);
    display: none;
}

.case-card.active {
    display: block;
    animation: fadeIn var(--transition-slow);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.case-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-lg);
}

.case-logo {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-600);
}

.case-metric {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-color);
}

.case-content h4 {
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
}

.case-content p {
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: var(--space-lg);
}

.case-results {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--gray-200);
}

.result {
    text-align: center;
}

.result-label {
    display: block;
    font-size: 0.875rem;
    color: var(--gray-600);
    margin-bottom: 0.25rem;
}

.result-value {
    display: block;
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--success-color);
}

.case-indicators {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: var(--space-lg);
}

.indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--gray-300);
    cursor: pointer;
    transition: all var(--transition-base);
}

.indicator.active {
    width: 24px;
    border-radius: 4px;
    background: var(--primary-color);
}

.references {
    padding: var(--space-3xl) 0;
    background: #ffffff;
}

.references .section-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.references-grid {
    display: flex;
    flex-wrap: nowrap;
    justify-content: center;
    align-items: center;
    gap: var(--space-xl);
}

.reference-link {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-sm);
    border-radius: var(--radius-lg);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    background: #ffffff;
    flex-shrink: 0;
}

.reference-link:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.reference-logo {
    max-height: 50px;
    max-width: 100px;
    object-fit: contain;
    filter: grayscale(20%);
    transition: filter var(--transition-base);
}

.reference-link:hover .reference-logo {
    filter: grayscale(0%);
}

.about {
    padding: var(--space-3xl) 0;
    background-color: #f5f5f5;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.about-tagline {
    font-size: 1.125rem;
    color: var(--primary-color);
    font-weight: 600;
    font-style: italic;
    margin-bottom: var(--space-md);
    text-align: left;
}

.about-intro {
    font-size: 1.125rem;
    color: var(--gray-600);
    margin-bottom: var(--space-xl);
    line-height: 1.8;
}

.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--gray-200);
}

.timeline-item {
    position: relative;
    margin-bottom: var(--space-lg);
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -2.5rem;
    top: 0.5rem;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--primary-color);
    border: 3px solid white;
    box-shadow: var(--shadow-sm);
}

.timeline-year {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.timeline-content h4 {
    font-size: 1.125rem;
    margin-bottom: 0.25rem;
}

.timeline-content p {
    color: var(--gray-600);
    font-size: 0.95rem;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
}

.stat-card {
    background: linear-gradient(135deg, var(--gray-50), white);
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    border: 1px solid var(--gray-100);
    transition: all var(--transition-base);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.stat-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--space-sm);
}

.stat-icon svg {
    width: 100%;
    height: 100%;
    stroke: var(--primary-color);
}

.stat-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-color);
    display: block;
    margin-bottom: 0.25rem;
}

.stat-desc {
    font-size: 0.875rem;
    color: var(--gray-600);
}

.cta-section {
    padding: var(--space-3xl) 0;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    text-align: center;
}

.cta-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: var(--space-md);
    color: white;
}

.cta-subtitle {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: var(--space-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-actions {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    margin-bottom: var(--space-xl);
    flex-wrap: wrap;
}

.cta-section .btn-primary {
    background: white;
    color: var(--primary-color);
}

.cta-section .btn-primary:hover {
    background: var(--gray-100);
}

.cta-section .btn-secondary {
    background: transparent;
    color: white;
    border-color: white;
}

.cta-section .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

.contact-info {
    display: flex;
    gap: var(--space-xl);
    justify-content: center;
    flex-wrap: wrap;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    opacity: 0.9;
}

.info-item svg {
    width: 20px;
    height: 20px;
}

.footer {
    background: var(--gray-900);
    color: white;
    padding: var(--space-2xl) 0 var(--space-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: var(--space-3xl);
    margin-bottom: var(--space-xl);
}

.footer-brand .logo {
    margin-bottom: var(--space-sm);
}

.footer-brand .logo-text {
    color: white !important;
}

.footer-desc {
    color: var(--gray-400);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.footer-column h4 {
    color: white;
    font-size: 1rem;
    margin-bottom: var(--space-md);
}

.footer-column a {
    display: block;
    color: var(--gray-400);
    margin-bottom: 0.5rem;
    transition: color var(--transition-base);
}

.footer-column a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-xl);
    border-top: 1px solid var(--gray-800);
    color: var(--gray-500);
}

.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 48px;
    height: 48px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-lg);
}

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

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-4px);
}

.back-to-top svg {
    width: 24px;
    height: 24px;
}

@media (max-width: 1024px) {
    .hero-stats {
        grid-template-columns: repeat(4, 1fr);
        gap: var(--space-sm);
    }

    .features-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }

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

    .about-content {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }

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

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .nav-menu.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        padding: var(--space-md);
        box-shadow: var(--shadow-lg);
        gap: var(--space-sm);
    }

    .nav-toggle {
        display: flex;
    }

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

    .hero-actions {
        flex-direction: column;
        width: 100%;
        max-width: 300px;
        margin-left: auto;
        margin-right: auto;
    }

    .btn {
        width: 100%;
    }

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

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

    .case-results {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }

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

    .footer-links {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .contact-info {
        flex-direction: column;
        align-items: center;
    }

    .cta-actions {
        flex-direction: column;
        max-width: 300px;
        margin-left: auto;
        margin-right: auto;
    }

    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-sm);
    }

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

    .stat-label {
        font-size: 0.85rem;
    }
}

@media (max-width: 480px) {
    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-xs);
    }

    .stat-number {
        font-size: 1.5rem;
    }

    .stat-label {
        font-size: 0.75rem;
    }

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

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

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

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

.slide-up {
    animation: slideUp 0.6s ease-out;
}

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

@supports not (scroll-behavior: smooth) {
    html {
        scroll-behavior: auto;
    }
}

.language-switcher {
    position: relative;
    margin-left: 1rem;
}

.lang-toggle-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 0;
    background: #ffffff;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
    font-size: 1.4rem;
    line-height: 1;
    color: var(--primary-color);
}

.lang-toggle-btn:hover {
    background: var(--gray-100);
    border-color: var(--primary-color);
    transform: scale(1.05);
}

.flag-icon {
    display: flex;
    align-items: center;
    justify-content: center;
}

@media (max-width: 768px) {
    .language-switcher {
        margin-left: auto;
        margin-right: 1rem;
    }

    .lang-toggle-btn {
        width: 36px;
        height: 36px;
        font-size: 1.2rem;
    }
}

/* Custom reference logo sizes */
.reference-link img[alt="Le Moteur Diesel"] {
    max-height: 80px;
    max-width: 150px;
}