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

:root {
    --primary-color: #2563eb;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --border-color: #e5e7eb;
    --max-width: 1200px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background: white;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

header {
    background: white;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--text-dark);
    margin: 5px 0;
    transition: 0.3s;
}

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

.nav-menu a {
    color: var(--text-dark);
    text-decoration: none;
    transition: color 0.3s;
}

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

.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 6rem 0;
    text-align: center;
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: 1rem;
    font-weight: 700;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.btn-primary {
    display: inline-block;
    background: white;
    color: var(--primary-color);
    padding: 0.75rem 2rem;
    border-radius: 0.375rem;
    text-decoration: none;
    font-weight: 500;
    transition: transform 0.2s, box-shadow 0.2s;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.services {
    padding: 4rem 0;
    background: var(--bg-light);
}

.services h2,
.approach h2,
.why-us h2,
.contact h2 {
    font-size: 2rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-dark);
}

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

.service-card {
    background: white;
    padding: 2rem;
    border-radius: 0.5rem;
    text-align: center;
    transition: transform 0.3s;
}

.service-card:hover {
    transform: translateY(-5px);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.service-card h3 {
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.service-card p {
    color: var(--text-light);
}

.approach {
    padding: 4rem 0;
}

.approach-content {
    max-width: 800px;
    margin: 0 auto;
}

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

.benefits-list {
    list-style: none;
    margin-top: 2rem;
}

.benefits-list li {
    padding: 0.5rem 0;
    color: var(--text-dark);
}

.why-us {
    padding: 4rem 0;
    background: var(--bg-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.feature {
    text-align: center;
}

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

.feature p {
    color: var(--text-light);
}

.examples {
    padding: 4rem 0;
}

.examples h2 {
    font-size: 2rem;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.examples-intro {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 3rem;
}

.examples-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.example-card {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 2rem;
    transition: box-shadow 0.3s;
}

.example-card:hover {
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.example-problem {
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.example-problem h4 {
    color: #dc2626;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.example-problem p {
    color: var(--text-dark);
}

.example-solution h4 {
    color: #059669;
    margin-bottom: 1rem;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.example-solution a {
    display: block;
    position: relative;
    margin-bottom: 1rem;
    border-radius: 0.375rem;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.example-solution a:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.example-solution a::after {
    content: "👁️";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(37, 99, 235, 0.9);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 500;
    font-size: 2rem;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.example-solution a:hover::after {
    opacity: 1;
}

.example-solution img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background: var(--bg-light);
    transition: transform 0.3s ease;
}

.example-solution a:hover img {
    transform: scale(1.05);
}

.example-solution p {
    color: var(--text-dark);
    margin-bottom: 1.5rem;
}

.example-price {
    background: var(--bg-light);
    padding: 1rem;
    border-radius: 0.375rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.price-label {
    color: var(--text-light);
    font-size: 0.875rem;
}

.price-value {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
}

.contact {
    padding: 4rem 0;
}

.contact-intro {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 2rem;
}

.contact-info {
    max-width: 500px;
    margin: 0 auto;
    text-align: center;
}

.contact-info h3 {
    margin-bottom: 2rem;
    color: var(--text-dark);
    font-size: 1.25rem;
}

.phone-slider {
    position: relative;
    background: white;
    border: 2px solid var(--primary-color);
    border-radius: 50px;
    height: 60px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.4s ease;
}

.phone-slider.active {
    background: var(--primary-color);
}

.slide-btn {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: transparent;
    border: none;
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: all 0.4s ease;
    z-index: 2;
}

.phone-slider.active .slide-btn {
    transform: translateX(-100%);
    opacity: 0;
}

.btn-arrow {
    font-size: 1.2rem;
    transition: transform 0.3s ease;
}

.slide-btn:hover .btn-arrow {
    transform: translateX(5px);
}

.phone-number {
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 100%;
    background: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: translateX(100%);
    transition: transform 0.4s ease;
    user-select: all;
    cursor: pointer;
}

.phone-slider.active .phone-number {
    transform: translateX(0);
}

.number-text {
    font-family: monospace;
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: 1px;
}

.phone-number:hover {
    background: #1d4ed8;
}

.phone-number.copied {
    background: #10b981;
}

.phone-number.copied::after {
    content: " ✓ Copié";
    margin-left: 10px;
    font-size: 0.9rem;
}

footer {
    background: var(--text-dark);
    color: white;
    text-align: center;
    padding: 2rem 0;
}

@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: white;
        flex-direction: column;
        padding: 1rem;
        box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    }

    .nav-menu.active {
        display: flex;
    }

    .hero {
        padding: 4rem 0;
    }

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

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

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

    .contact-info {
        max-width: 300px;
    }

    .phone-slider {
        height: 50px;
    }

    .number-text {
        font-size: 1rem;
    }
}