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

:root {
    --color-primary: #000000;
    --color-secondary: #666666;
    --color-text: #1a1a1a;
    --color-text-light: #6b7280;
    --color-border: #e5e7eb;
    --color-bg: #ffffff;
    --color-bg-light: #f9fafb;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
}

html {
    scroll-behavior: auto;
    scroll-padding-top: 80px;
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: transparent;
    overflow-x: hidden;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    width: 100%;
    position: relative;
    /* Safe area pour iPhone avec encoche */
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    width: 100%;
    box-sizing: border-box;
    /* Safe area pour iPhone avec encoche */
    padding-left: calc(var(--spacing-md) + env(safe-area-inset-left));
    padding-right: calc(var(--spacing-md) + env(safe-area-inset-right));
}

/* Header */
.header {
    position: -webkit-sticky; /* Pour Safari iOS */
    position: sticky;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px); /* Pour Safari iOS */
    background: rgba(255, 255, 255, 0.95);
    /* Safe area pour iPhone avec encoche */
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
    /* Fix pour Safari iOS */
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    box-sizing: border-box;
    /* Fix pour Safari iOS */
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
}

.logo-wrapper {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.logo {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.nav-link {
    color: var(--color-text);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.2s ease;
}

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

.nav-cta {
    background: var(--color-primary);
    color: var(--color-bg);
    padding: 0.5rem 1.25rem;
    border-radius: 6px;
    transition: background 0.2s ease;
}

.nav-cta:hover {
    background: var(--color-secondary);
    color: var(--color-bg);
}

/* Language Selector */
.language-selector {
    position: relative;
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    background: transparent;
    border: 1px solid var(--color-border);
    padding: 0.5rem 0.875rem;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text);
    transition: all 0.2s ease;
}

.lang-btn:hover {
    background: var(--color-bg-light);
    border-color: var(--color-secondary);
}

.lang-btn svg {
    transition: transform 0.2s ease;
}

.language-selector.active .lang-btn svg {
    transform: rotate(180deg);
}

.lang-dropdown {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    min-width: 140px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease;
    z-index: 1000;
}

.lang-dropdown.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-option {
    display: block;
    width: 100%;
    padding: 0.625rem 1rem;
    background: transparent;
    border: none;
    text-align: left;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--color-text);
    transition: background 0.2s ease;
}

.lang-option:first-child {
    border-radius: 6px 6px 0 0;
}

.lang-option:last-child {
    border-radius: 0 0 6px 6px;
}

.lang-option:hover {
    background: var(--color-bg-light);
}

/* Hero Section */
.hero {
    padding: var(--spacing-xl) var(--spacing-md);
    text-align: center;
    background: var(--color-bg);
    width: 100%;
    box-sizing: border-box;
    overflow-x: hidden;
    /* Safe area pour iPhone avec encoche */
    padding-left: calc(var(--spacing-md) + env(safe-area-inset-left));
    padding-right: calc(var(--spacing-md) + env(safe-area-inset-right));
}

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

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    transition: all 0.2s ease;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-bg);
}

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

.btn-secondary {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background: var(--color-bg-light);
    border-color: var(--color-secondary);
}

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

/* Services Section */
.services {
    padding: var(--spacing-xl) var(--spacing-md);
    background: var(--color-bg-light);
    width: 100%;
    box-sizing: border-box;
    overflow-x: hidden;
    /* Safe area pour iPhone avec encoche */
    padding-left: calc(var(--spacing-md) + env(safe-area-inset-left));
    padding-right: calc(var(--spacing-md) + env(safe-area-inset-right));
}

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

.section-subtitle {
    text-align: center;
    color: var(--color-text-light);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-lg);
}

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

.service-card {
    background: var(--color-bg);
    padding: var(--spacing-md);
    border-radius: 8px;
    border: 1px solid var(--color-border);
    transition: all 0.2s ease;
}

.service-card:hover {
    border-color: var(--color-secondary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    transform: translateY(-2px);
}

.service-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-light);
    border-radius: 8px;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.service-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}

.service-description {
    color: var(--color-text-light);
    line-height: 1.6;
    font-size: 0.95rem;
}

/* About Section */
.about {
    padding: var(--spacing-xl) var(--spacing-md);
    background: var(--color-bg);
    width: 100%;
    box-sizing: border-box;
    overflow-x: hidden;
    /* Safe area pour iPhone avec encoche */
    padding-left: calc(var(--spacing-md) + env(safe-area-inset-left));
    padding-right: calc(var(--spacing-md) + env(safe-area-inset-right));
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-description {
    color: var(--color-text-light);
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-sm);
}

.about-features {
    margin-top: var(--spacing-md);
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-sm);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-text);
    font-size: 0.95rem;
}

.feature-check {
    color: var(--color-primary);
    font-weight: 600;
    font-size: 1.2rem;
}

/* CTA Section */
.cta-section {
    padding: var(--spacing-xl) var(--spacing-md);
    background: var(--color-bg-light);
    width: 100%;
    box-sizing: border-box;
    overflow-x: hidden;
    /* Safe area pour iPhone avec encoche */
    padding-left: calc(var(--spacing-md) + env(safe-area-inset-left));
    padding-right: calc(var(--spacing-md) + env(safe-area-inset-right));
}

.cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}

.cta-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

/* Footer */
.footer {
    background: var(--color-text);
    color: var(--color-bg);
    padding: var(--spacing-lg) var(--spacing-md) var(--spacing-md);
    width: 100%;
    box-sizing: border-box;
    overflow-x: hidden;
    /* Safe area pour iPhone avec encoche */
    padding-left: calc(var(--spacing-md) + env(safe-area-inset-left));
    padding-right: calc(var(--spacing-md) + env(safe-area-inset-right));
    padding-bottom: calc(var(--spacing-md) + env(safe-area-inset-bottom));
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
}

.footer-logo-img {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
}

.footer-logo-text {
    font-size: 1.1rem;
    font-weight: 600;
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    line-height: 1.6;
}

.footer-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

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

.footer-links li {
    margin-bottom: var(--spacing-xs);
}

.footer-link {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s ease;
}

.footer-link:hover {
    color: var(--color-bg);
}

.footer-social {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.footer-social-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s ease;
}

.footer-social-link:hover {
    color: var(--color-bg);
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.footer-contact a {
    display: inline-flex;
    align-items: center;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s ease;
}

.footer-contact a:hover {
    color: var(--color-bg);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 768px) {
    html {
        scroll-padding-top: 70px;
        overflow-x: hidden;
    }

    body {
        overflow-x: hidden;
        width: 100%;
        max-width: 100vw;
    }

    .container {
        padding: 0 var(--spacing-sm);
        padding-left: calc(var(--spacing-sm) + env(safe-area-inset-left));
        padding-right: calc(var(--spacing-sm) + env(safe-area-inset-right));
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
    }

    .nav-container {
        padding: var(--spacing-xs) var(--spacing-sm);
        flex-wrap: wrap;
        gap: var(--spacing-xs);
        align-items: flex-start;
    }

    .logo-wrapper {
        flex-shrink: 0;
        width: 100%;
        margin-bottom: var(--spacing-xs);
    }

    .logo {
        width: 32px;
        height: 32px;
    }

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

    .nav-links {
        gap: 0.5rem;
        flex-wrap: wrap;
        justify-content: flex-end;
        width: 100%;
        flex-direction: column;
        align-items: flex-end;
    }

    .language-selector {
        order: 1;
        margin-bottom: 0.5rem;
    }

    .nav-cta {
        order: 2;
        width: auto;
    }

    .nav-link {
        font-size: 0.8rem;
        white-space: nowrap;
    }

    .nav-cta {
        padding: 0.4rem 0.875rem;
        font-size: 0.8rem;
    }

    .lang-btn {
        padding: 0.4rem 0.75rem;
        font-size: 0.8rem;
    }

    .hero {
        padding: var(--spacing-lg) var(--spacing-sm);
    }

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

    .hero-subtitle {
        font-size: 1.1rem;
    }

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

    .services-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .hero-cta {
        flex-direction: column;
        align-items: stretch;
    }

    .btn {
        width: 100%;
        text-align: center;
    }
}

@media (max-width: 480px) {
    html {
        scroll-padding-top: 65px;
        overflow-x: hidden;
    }

    body {
        overflow-x: hidden;
        width: 100%;
        max-width: 100vw;
    }

    .header {
        position: -webkit-sticky; /* Pour Safari iOS */
        position: sticky;
        top: 0;
        left: 0;
        right: 0;
        width: 100%;
        max-width: 100vw;
    }

    .nav-container {
        padding: 0.5rem var(--spacing-xs);
        padding-left: calc(var(--spacing-xs) + env(safe-area-inset-left));
        padding-right: calc(var(--spacing-xs) + env(safe-area-inset-right));
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
        flex-direction: column;
        align-items: flex-start;
    }

    .logo-wrapper {
        width: 100%;
        margin-bottom: 0.5rem;
    }

    .container {
        padding-left: calc(var(--spacing-xs) + env(safe-area-inset-left));
        padding-right: calc(var(--spacing-xs) + env(safe-area-inset-right));
    }

    .logo-text {
        font-size: 0.9rem;
    }

    .nav-links {
        gap: 0.5rem;
        width: 100%;
        flex-direction: column;
        align-items: flex-end;
    }

    .nav-link {
        font-size: 0.75rem;
    }

    .nav-link:not(.nav-cta) {
        display: none;
    }

    .language-selector {
        order: 1;
        width: auto;
        margin-bottom: 0.5rem;
    }

    .nav-cta {
        order: 2;
        padding: 0.35rem 0.75rem;
        font-size: 0.75rem;
        width: auto;
    }

    .lang-btn {
        padding: 0.35rem 0.65rem;
        font-size: 0.75rem;
    }

    .lang-btn svg {
        width: 12px;
        height: 12px;
    }

    .hero {
        padding: var(--spacing-md) var(--spacing-xs);
    }

    .hero-title {
        font-size: 1.75rem;
        line-height: 1.3;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .services,
    .about,
    .cta-section {
        padding: var(--spacing-md) var(--spacing-xs);
    }

    .service-card {
        padding: var(--spacing-sm);
    }

    .cta-title {
        font-size: 1.75rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
}