/* === VARIABLES & FONDATIONS === */
:root {
    --bg: #F9FAFB;
    --bg-alt: #FFFFFF;
    --surface: #FFFFFF;
    --text: #1F2937;
    --muted: #6B7280;
    --accent: #7ED957;
    --border: #F3F4F6;
    --shadow: 0 10px 15px -3px rgb(0 0 0 / 0.05), 0 4px 6px -4px rgb(0 0 0 / 0.05);
    --font-family: 'Inter', system-ui, -apple-system, sans-serif;
    --header-height: 90px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-height) + 2rem); }
body {
    background-color: var(--bg);
    color: var(--text);
    font-family: var(--font-family);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background-image: radial-gradient(circle at top, #ffffff, transparent 60%),
                      radial-gradient(var(--border) 1px, transparent 1px);
    background-size: 100% 100%, 20px 20px;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
.section-alt { background-color: var(--bg-alt); }
body.no-scroll { overflow: hidden; }

/* === TYPOGRAPHIE PROFESSIONNELLE === */
.section-title { font-size: clamp(2rem, 4vw, 2.75rem); font-weight: 800; line-height: 1.2; }
h1 { font-size: clamp(2.5rem, 5.5vw, 3.75rem); font-weight: 800; max-width: 900px; line-height: 1.2; }
.subtitle { font-size: clamp(1.1rem, 2.5vw, 1.2rem); color: var(--muted); max-width: 700px; }
p { font-size: 1.05rem; color: var(--muted); }
h3 { font-size: 1.35rem; color: var(--text); }

/* === HEADER FLOTTANT === */
.main-header {
    height: var(--header-height);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(15px);
    border-radius: 50px;
    padding: 0.75rem 1rem;
    box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.07), 0 2px 4px -2px rgb(0 0 0 / 0.07);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.nav-logo { font-size: 1.7rem; font-weight: 800; color: var(--text); margin-left: 1rem; flex-shrink: 0; }
.nav-logo span { color: var(--accent); }

.burger-menu { z-index: 1010; }

/* === COMPOSANTS GLOBAUX === */
.container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }
.content-section { padding: 5rem 0; }
.section-heading { text-align: center; margin-bottom: 3.5rem; }
.section-pretitle { display: block; color: var(--accent); font-weight: 500; margin-bottom: 0.5rem; text-transform: uppercase; letter-spacing: 1px; }
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 0.7rem 1.5rem; border-radius: 50px; font-weight: 500; text-align: center; transition: all 0.3s ease; border: 1px solid transparent; font-size: 0.95rem; }
.btn-primary { background-color: var(--accent); color: #FFFFFF; }
.btn-primary:hover { background-color: #6ac541; transform: translateY(-3px); box-shadow: 0 8px 20px rgba(126, 217, 87, 0.3); }
.btn-secondary { background-color: var(--surface); color: var(--text); border-color: #E5E7EB; }
.btn-secondary:hover { border-color: var(--text); transform: translateY(-2px); }
.card { background-color: var(--surface); border-radius: 16px; border: 1px solid var(--border); padding: 2rem; box-shadow: var(--shadow); transition: transform 0.3s ease, box-shadow 0.3s ease; }
.card:hover { transform: translateY(-8px); box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.08), 0 8px 10px -6px rgb(0 0 0 / 0.08); }
.section-cta { text-align: center; margin-top: 3rem; }

/* ... (Les styles des autres sections restent les mêmes) ... */
.hero-section { padding: 6rem 0 7rem; text-align: center; }
.hero-content { display: flex; flex-direction: column; align-items: center; gap: 1.5rem; }
.text-highlight { color: var(--accent); }
.cta-buttons { margin-top: 1.5rem; }
.philosophy-grid { display: grid; grid-template-columns: 1fr; gap: 2rem; margin-top: 4rem; }
.philosophy-card { background-color: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 2.5rem 2rem; text-align: center; }
.philosophy-icon { display: inline-flex; justify-content: center; align-items: center; width: 80px; height: 80px; margin-bottom: 1.5rem; background-color: rgba(126, 217, 87, 0.1); border-radius: 50%; }
.philosophy-icon svg { color: var(--accent); width: 40px; height: 40px; }
.philosophy-card p { font-size: 1rem; }
.ceo-container { display: grid; grid-template-columns: 1fr; gap: 3rem; align-items: center; }
.ceo-photo img { border-radius: 16px; width: 100%; max-width: 400px; margin: 0 auto; box-shadow: var(--shadow); }
.ceo-name { font-size: 1.5rem; font-weight: 700; margin-bottom: 1rem; color: var(--text); }
.ceo-text { font-size: 1.1rem; }
.pricing-grid { display: grid; grid-template-columns: 1fr; gap: 2rem; align-items: center; }
.pricing-card { background-color: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 2.5rem 2rem; text-align: center; transition: transform 0.3s ease, box-shadow 0.3s ease; display: flex; flex-direction: column; height: 100%; }
.pricing-card.highlighted { border: 2px solid var(--accent); transform: scale(1.05); position: relative; }
.pricing-card .plan-badge { position: absolute; top: 1.5rem; right: 1.5rem; background-color: var(--accent); color: white; font-size: 0.8rem; font-weight: 500; padding: 0.25rem 0.75rem; border-radius: 50px; }
.pricing-card .pricing-icon { color: var(--accent); margin: 0 auto 1rem auto; }
.pricing-card .plan-name { font-size: 1.5rem; font-weight: 700; color: var(--text); margin-bottom: 0.5rem; }
.pricing-card .plan-description { color: var(--muted); margin-bottom: 1.5rem; min-height: 40px; }
.pricing-card .plan-price { font-size: 2.5rem; font-weight: 800; color: var(--text); margin-bottom: 1.5rem; }
.pricing-card .plan-price span { font-size: 1rem; font-weight: 500; color: var(--muted); margin-left: 0.5rem; }
.pricing-card .btn { width: 100%; margin-bottom: 2rem; }
.pricing-card .features-list { list-style: none; padding: 0; margin: 0; text-align: left; flex-grow: 1; }
.pricing-card .features-list li { color: var(--muted); margin-bottom: 0.75rem; display: flex; align-items: center; gap: 0.75rem; }
.pricing-card .features-list li::before { content: '✓'; color: var(--accent); font-weight: 800; font-size: 1.2rem; }
.services-grid, .portfolio-grid { grid-template-columns: 1fr; }
.portfolio-card { padding: 0; overflow: hidden; }
.portfolio-card img { width: 100%; height: 220px; object-fit: cover; border-bottom: 1px solid var(--border); }
.portfolio-card .card-content { padding: 1.5rem; }
.tag { background-color: rgba(126, 217, 87, 0.1); color: #5b9e3b; padding: 0.25rem 0.75rem; border-radius: 50px; font-size: 0.8rem; font-weight: 500; display: inline-block; margin-bottom: 1rem; }
.contact-subtitle { max-width: 700px; margin: -2.5rem auto 3.5rem; color: var(--muted); font-size: 1.1rem; }
.contact-form { display: grid; grid-template-columns: 1fr; gap: 1.5rem; max-width: 700px; margin: 0 auto; }
.form-group { display: flex; flex-direction: column; text-align: left; }
.form-group.full-width { grid-column: 1 / -1; }
.contact-form label { margin-bottom: 0.5rem; font-size: 0.9rem; font-weight: 500; color: var(--text); }
.contact-form input, .contact-form select, .contact-form textarea { background: var(--bg); border: 1px solid #E5E7EB; border-radius: 8px; padding: 0.8rem; color: var(--text); font-size: 1rem; transition: border-color 0.2s, box-shadow 0.2s; }
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(126, 217, 87, 0.2); }
.main-footer { background: var(--bg-alt); padding: 3rem 0; text-align: center; color: var(--muted); border-top: 1px solid var(--border); }
.footer-content { display: flex; flex-direction: column; gap: 1.5rem; align-items: center; }
.footer-logo { font-size: 1.5rem; font-weight: 800; color: var(--text); }
.footer-logo span { color: var(--accent); }
.footer-socials { display: flex; gap: 1.5rem; }
.footer-socials svg { color: var(--muted); transition: color 0.2s; }
.footer-socials a:hover svg { color: var(--accent); }
.chatbot{position:fixed;bottom:1.5rem;right:1.5rem;z-index:200}.chatbot-bubble{width:60px;height:60px;border-radius:50%;background-color:var(--accent);border:none;cursor:pointer;display:flex;justify-content:center;align-items:center;box-shadow:0 4px 15px rgba(126,217,87,.4);transition:transform .2s}.chatbot-bubble:hover{transform:scale(1.1)}.chatbot-panel{position:absolute;bottom:80px;right:0;width:350px;background:var(--surface);border-radius:16px;box-shadow:var(--shadow);opacity:0;transition:all .3s ease;visibility:hidden;border:1px solid var(--border)}.chatbot-panel.open{transform:translateY(0);opacity:1;visibility:visible}.chatbot-header{padding:1rem;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center}.faq-container{padding:1rem;overflow-y:auto;max-height:300px}.faq-item{margin-bottom:1rem}.faq-question{font-weight:500;cursor:pointer;background:none;border:none;width:100%;text-align:left;color:var(--text);padding:.7rem 0;font-size:1rem}.faq-answer{color:var(--muted);font-size:.9rem;padding-top:.5rem;max-height:0;overflow:hidden;transition:max-height .3s ease}


/* === MEDIA QUERIES === */

/* --- Styles pour MOBILE et TABLETTE (< 992px) --- */
@media (max-width: 991px) {
    .nav-menu, .nav-actions { display: none; }
    
    .burger-menu {
        display: flex;
        flex-direction: column;
        justify-content: space-around;
        width: 2rem;
        height: 2rem;
        background: transparent;
        border: none;
        cursor: pointer;
    }
    .burger-menu span { width: 2rem; height: 2px; background: var(--text); border-radius: 10px; transition: all 0.3s; transform-origin: center; }

    /* La sidebar qui apparaît */
    .nav-menu {
        position: fixed;
        top: 0;
        right: 0;
        width: 300px;
        max-width: 85%;
        height: 100vh;
        background-color: #FFFFFF; /* Fond blanc solide */
        box-shadow: -5px 0 25px rgba(0, 0, 0, 0.1);
        z-index: 1005;
        display: flex;
        flex-direction: column;
        justify-content: flex-start;
        align-items: flex-start;
        padding: 6rem 2rem 2rem 2rem;
        transform: translateX(100%);
        visibility: hidden;
        transition: transform 0.4s cubic-bezier(0.23, 1, 0.32, 1), visibility 0s linear 0.4s;
    }

    .nav-menu.open {
        transform: translateX(0);
        visibility: visible;
        transition: transform 0.4s cubic-bezier(0.23, 1, 0.32, 1), visibility 0s linear 0s;
    }

    .nav-menu.open .nav-list { flex-direction: column; align-items: flex-start; gap: 1.5rem; width: 100%; padding: 0; }
    .nav-menu.open .nav-link { font-size: 1.5rem; font-weight: 700; color: var(--text); }
    .nav-menu.open .header-socials { display: flex; margin-top: auto; padding-top: 2rem; border-top: 1px solid var(--border); width: 100%; gap: 1.5rem; }
    .nav-menu.open .header-socials svg { width: 28px; height: 28px; color: var(--muted); }

    .burger-menu.open { position: fixed; top: 2.2rem; right: 1.5rem; }
    .burger-menu.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
    .burger-menu.open span:nth-child(2) { opacity: 0; }
    .burger-menu.open span:nth-child(3) { transform: rotate(-45deg) translate(7px, -7px); }

    /* Fond semi-transparent sur la page */
    body::after {
        content: '';
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(25, 25, 25, 0.6);
        z-index: 999;
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.4s ease, visibility 0s linear 0.4s;
    }
    body.no-scroll::after {
        opacity: 1;
        visibility: visible;
        transition: opacity 0.4s ease;
    }
}

/* --- Styles pour DESKTOP (> 992px) --- */
@media (min-width: 992px) {
    .burger-menu { display: none; }
    .navbar { display: grid; grid-template-columns: auto 1fr auto; gap: 1rem; padding: 0.75rem 1.5rem; }
    .nav-menu { display: flex; justify-content: center; align-items: center; }
    .nav-list { display: flex; align-items: center; gap: 2.5rem; }
    .nav-link { font-size: 1rem; }
    .header-socials { display: flex; gap: 1rem; margin-left: 1.5rem; padding-left: 1.5rem; border-left: 1px solid var(--border); }
    .header-socials svg { color: var(--muted); transition: color 0.2s; }
    .header-socials a:hover svg { color: var(--accent); }
    .nav-actions { display: flex; align-items: center; gap: 0.75rem; }
    
    .content-section { padding: 6rem 0; }
    .philosophy-grid { grid-template-columns: repeat(3, 1fr); }
    .ceo-container { grid-template-columns: 350px 1fr; gap: 4rem; }
    .services-grid { grid-template-columns: repeat(3, 1fr); }
    .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
    .contact-form { grid-template-columns: 1fr 1fr; }
    .pricing-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1200px) {
    .portfolio-grid { grid-template-columns: repeat(3, 1fr); }
}