/* =========================
   Prometheus - Mobile-first
   Responsive CSS (replace)
   ========================= */

/* Google font (conserver) */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

:root{
    --primary: #000;
    --secondary: #1a1a1a;
    --accent: #fff;
    --gray: #666;
    --max-content: 1200px;
    --gap-sm: 1rem;
    --gap-md: 2rem;
    --gap-lg: 3rem;
}

/* ========== Base ========== */
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
    font-family:'Inter',sans-serif;
    background:#000;
    color:#fff;
    -webkit-font-smoothing:antialiased;
    -moz-osx-font-smoothing:grayscale;
    overflow-x:hidden;
    line-height:1.5;
    -webkit-tap-highlight-color: transparent;
}

/* canvas / interactive background */
#interactiveCanvas{
    position:fixed;
    inset:0;
    width:100%;
    height:100vh;
    z-index:0;
    pointer-events:none;
    background: #0f0f0f;
}

/* grain overlay */
.grain{
    position:fixed;inset:0;pointer-events:none;opacity:0.03;z-index:9999;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

/* Utility container */
.container, .nav-container{
    max-width:1400px;
    margin:0 auto;
    padding:0 1.25rem;
}

/* ========== Navbar (mobile-first) ========== */
.navbar{
    position:fixed;top:0;left:0;width:100%;
    z-index:1200;
    padding:0.9rem 0;
    transition:all .35s cubic-bezier(.4,0,.2,1);
    backdrop-filter: blur(14px);
    background: linear-gradient(180deg, rgba(0,0,0,0.0), rgba(0,0,0,0.02));
    border-bottom: 1px solid transparent;
}

.navbar.scrolled{
    background: rgba(0,0,0,0.8);
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

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

.logo{
    display:flex;align-items:center;gap:.5rem;
    font-weight:800;font-size:1.05rem;letter-spacing:-0.4px;color:var(--accent);
    text-decoration:none;
}
.logo-dot{width:8px;height:8px;border-radius:50%;background:#fff;animation:pulse 2s ease-in-out infinite}

.nav-burger{
    display:flex;
    align-items:center;
    justify-content:center;
    width:44px;height:44px;
    border-radius:10px;
    cursor:pointer;
    border:1px solid rgba(255,255,255,0.06);
    background: rgba(255,255,255,0.02);
    transition:all .25s;
}
.nav-burger:active{transform:scale(.98)}
.nav-burger .bar{width:22px;height:2px;background:rgba(255,255,255,0.9);border-radius:2px;position:relative;transition:all .35s}
.nav-burger .bar::before,.nav-burger .bar::after{
    content:"";position:absolute;left:0;width:100%;height:100%;background:inherit;border-radius:2px;transition:all .35s
}
.nav-burger .bar::before{top:-7px}
.nav-burger .bar::after{top:7px}

.nav-links{
    display:none;
    gap:1rem;
    align-items:center;
}

.nav-overlay{
    position:fixed;inset:0;z-index:1150;
    background: rgba(0,0,0,0.75);
    display:none;
    align-items:flex-start;
    justify-content:flex-end;
    padding:5rem 1.25rem 1.25rem 1.25rem;
    overflow:auto;
    transition:opacity .3s, transform .35s;
}

.nav-panel{
    width:100%;
    max-width:360px;
    background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
    border-radius:16px;
    padding:1.25rem;
    border:1px solid rgba(255,255,255,0.06);
    box-shadow: 0 20px 50px rgba(0,0,0,0.6);
}

.nav-panel a{
    display:block;
    padding:.85rem 1rem;
    color:rgba(255,255,255,0.9);
    text-decoration:none;
    font-weight:600;
    border-radius:10px;
    transition:background .18s, color .18s;
    margin-bottom:.5rem;
}
.nav-panel a:hover{background:rgba(255,255,255,0.04);color:#fff}

body.nav-open .nav-overlay{display:flex}
body.nav-open .nav-burger .bar{background:transparent}
body.nav-open .nav-burger .bar::before{transform:translateY(7px) rotate(45deg)}
body.nav-open .nav-burger .bar::after{transform:translateY(-7px) rotate(-45deg)}

/* ========== Hero ========== */
.hero{
    min-height: calc(100vh - 68px);
    display:flex;
    align-items:center;
    justify-content:center;
    position:relative;
    overflow:hidden;
    padding:4rem 1.25rem;
    text-align:center;
    z-index:5;
}

.hero-bg{
    position:absolute;inset:0;z-index:0;
    background:
        radial-gradient(circle at 20% 30%, rgba(255,255,255,0.03) 0%, transparent 40%),
        radial-gradient(circle at 80% 70%, rgba(255,255,255,0.02) 0%, transparent 40%);
    pointer-events:none
}

.hero-grid{
    position:absolute;inset:0;z-index:0;
    background-image: linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 50px 50px;
    animation:gridMove 20s linear infinite;
    opacity:0.6;
    pointer-events:none
}

.hero-content{position:relative;z-index:10;max-width:900px;margin:0 auto;}

.hero-badge{
    display:inline-flex;align-items:center;gap:.5rem;
    padding:.4rem .9rem;border-radius:999px;
    background:rgba(255,255,255,0.03);
    border:1px solid rgba(255,255,255,0.06);
    font-size:.8rem;margin-bottom:1.25rem
}

.hero h1{
    font-size:2rem;
    font-weight:900;
    color: #fff;
    line-height:1.05;
    margin-bottom:1rem;
    letter-spacing:-0.02em;
    word-break:break-word;
    animation:fadeInUp .6s .1s both;
}

.hero p{
    font-size:1rem;
    color:rgba(255,255,255,0.68);
    margin-bottom:1.25rem;
    max-width:520px;
    margin-left:auto;
    margin-right:auto;
    line-height:1.6;
}

.hero-cta{display:flex;gap:.6rem;justify-content:center;flex-wrap:wrap}

.btn-primary, .btn-secondary{
    padding:.9rem 1.6rem;
    border-radius:999px;
    font-weight:700;
    font-size:.95rem;
    text-decoration:none;
    cursor:pointer;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    transition:all .35s cubic-bezier(.4,0,.2,1);
}
.btn-primary{background:#fff;color:#000;border:none}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(255,255,255,0.25)}
.btn-secondary{background:transparent;color:#fff;border:2px solid rgba(255,255,255,0.14)}
.btn-secondary:hover{background:rgba(255,255,255,0.05)}

/* ========== Stats ========== */
.stats{
    padding:3rem 1.25rem;
    border-top:1px solid rgba(255,255,255,0.03);
    border-bottom:1px solid rgba(255,255,255,0.03);
}
.stats-grid{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1fr;gap:1.25rem}
.stat-item{text-align:center}
.stat-number{
    font-size:2.2rem;
    font-weight:900;
    margin-bottom:.25rem;
    color:#fff;
}
.stat-label{color:rgba(255,255,255,0.6);font-weight:600;font-size:.95rem}

/* ========== Services / Tarifs ========== */
.services{padding:3.5rem 1.25rem;position:relative;z-index:10}

.section-header{text-align:center;margin-bottom:2.25rem}

.section-badge{
    display:inline-block;
    padding:.4rem 1rem;
    border-radius:999px;
    background:rgba(255,255,255,0.03);
    border:1px solid rgba(255,255,255,0.06);
    font-size:.75rem;
    letter-spacing:1px;
    text-transform:uppercase
}

.section-title{font-size:1.6rem;font-weight:900;margin-top:.6rem;color:#fff}

.section-description{
    font-size:.95rem;
    color:rgba(255,255,255,0.62);
    max-width:640px;
    margin:0 auto;
    margin-top:.75rem
}

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

.service-card{
    background:rgba(255,255,255,0.02);
    border:1px solid rgba(255,255,255,0.05);
    border-radius:16px;
    padding:1.25rem;
    position:relative;
    overflow:hidden;
    cursor:pointer;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.5s cubic-bezier(0.4, 0, 0.2, 1),
                max-height 0.5s cubic-bezier(0.4, 0, 0.2, 1),
                margin 0.5s cubic-bezier(0.4, 0, 0.2, 1),
                padding 0.5s cubic-bezier(0.4, 0, 0.2, 1),
                border 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.service-card.visible {
    opacity: 1;
    transform: translateY(0);
    max-height: 2000px;
}

.service-card.hidden {
    opacity: 0;
    transform: translateY(20px);
    max-height: 0;
    overflow: hidden;
    margin: 0 !important;
    padding: 0 !important;
    border: none !important;
    pointer-events: none;
}

.service-icon{
    font-size:2rem;
    margin-bottom:.75rem;
    display:block;
    filter:grayscale(1);
    transition:all .35s
}

.service-title{font-size:1.05rem;font-weight:700;margin-bottom:.5rem;color:#fff}

.service-description{
    color:rgba(255,255,255,0.62);
    margin-bottom:.75rem;
    line-height:1.5
}

.service-features{list-style:none;padding:0;margin:0}

.service-features li{
    padding:.55rem 0;
    color:rgba(255,255,255,0.6);
    font-size:.92rem;
    border-top:1px solid rgba(255,255,255,0.03);
    display:flex;
    align-items:center;
    gap:.5rem
}
.service-features li::before{content:'→';color:#fff;font-weight:700;margin-right:.5rem}

.highlight-card{
    border:2px solid rgba(255,255,255,0.18);
    background:rgba(255,255,255,0.04);
    transform:scale(1);
}

/* Bouton toggle services */
#toggleServicesBtn {
    background: #fff;
    color: #000;
    border: none;
    padding: 0.9rem 1.6rem;
    font-size: 0.95rem;
    font-weight: 700;
    border-radius: 999px;
    cursor: pointer;
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 12px rgba(255, 255, 255, 0.15);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-top: 2rem;
    touch-action: manipulation;
    position: relative;
    z-index: 100;
}

#toggleServicesBtn:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 255, 255, 0.25);
}

#toggleServicesBtn:active {
    transform: translateY(0);
}

#toggleServicesBtn:focus {
    outline: 2px solid rgba(255, 255, 255, 0.4);
    outline-offset: 2px;
}

.subscription-section{margin-top:2.25rem;text-align:center}
.subscription-card{max-width:640px;margin:0 auto;border-radius:16px;padding:1rem}

/* ========== Contact ========== */
.contact{padding:3.5rem 1.25rem}
.contact-wrapper{max-width:900px;margin:0 auto}

.contact-form{
    background:rgba(255,255,255,0.02);
    border:1px solid rgba(255,255,255,0.05);
    border-radius:16px;
    padding:1rem;
    backdrop-filter: blur(8px)
}

.form-group{margin-bottom:1rem}

.form-label{
    display:block;
    margin-bottom:.5rem;
    font-weight:600;
    color:rgba(255,255,255,0.9);
    font-size:.9rem
}

.form-input,.form-textarea{
    width:100%;
    padding:.85rem;
    border-radius:10px;
    background:rgba(255,255,255,0.03);
    border:1px solid rgba(255,255,255,0.06);
    color:#fff;
    font-size:.95rem;
    font-family:'Inter',sans-serif;
    transition:all .25s
}
.form-input:focus,.form-textarea:focus{
    background:rgba(255,255,255,0.05);
    border-color:rgba(255,255,255,0.12)
}

.form-textarea{min-height:120px;resize:vertical}

.checkbox-grid{display:grid;grid-template-columns:1fr;gap:.6rem;margin-top:.75rem}

.checkbox-item{
    display:flex;
    align-items:center;
    gap:.6rem;
    padding:.6rem;
    border-radius:8px;
    background:rgba(255,255,255,0.02);
    border:1px solid rgba(255,255,255,0.04);
    transition:all .25s
}
.checkbox-item:hover{background:rgba(255,255,255,0.04)}
.checkbox-item input{width:18px;height:18px;cursor:pointer}
.checkbox-item label{
    font-size:.85rem;
    color:rgba(255,255,255,0.75);
    text-transform:uppercase;
    cursor:pointer
}

.submit-btn{
    width:100%;
    padding:1rem;
    border-radius:12px;
    background:#fff;
    color:#000;
    font-weight:800;
    font-size:1rem;
    border:none;
    cursor:pointer;
    margin-top:.5rem;
    transition:all .35s cubic-bezier(.4,0,.2,1)
}
.submit-btn:hover{
    transform:translateY(-2px);
    box-shadow:0 6px 20px rgba(255,255,255,0.25)
}
.submit-btn:active{transform:translateY(0)}

.success-message{
    background:rgba(255,255,255,0.08);
    border:1px solid rgba(255,255,255,0.12);
    padding:.85rem;
    border-radius:10px;
    text-align:center;
    margin-bottom:1rem
}

/* ========== Footer ========== */
.footer{padding:2rem 1.25rem;border-top:1px solid rgba(255,255,255,0.03)}

.footer-content{
    max-width:1400px;
    margin:0 auto;
    display:flex;
    flex-direction:column;
    gap:.75rem;
    align-items:center
}

.footer-text{color:rgba(255,255,255,0.5);font-size:.85rem}

.footer-links{display:flex;gap:.75rem;flex-wrap:wrap}

.footer-links a{
    color:rgba(255,255,255,0.5);
    text-decoration:none;
    font-size:.9rem;
    transition:color .25s
}
.footer-links a:hover{color:rgba(255,255,255,0.8)}

/* ========== Animations ========== */
@keyframes pulse{
    0%,100%{opacity:1;transform:scale(1)}
    50%{opacity:.5;transform:scale(1.2)}
}
@keyframes gridMove{
    0%{transform:translate(0,0)}
    100%{transform:translate(50px,50px)}
}
@keyframes fadeInUp{
    from{opacity:0;transform:translateY(30px)}
    to{opacity:1;transform:translateY(0)}
}
@keyframes slideDown{
    from{opacity:0;transform:translateY(-20px)}
    to{opacity:1;transform:translateY(0)}
}

.scroll-reveal{
    opacity:0;
    transform:translateY(30px);
    transition:all .7s cubic-bezier(.4,0,.2,1)
}
.scroll-reveal.active{opacity:1;transform:translateY(0)}

a,button,input,textarea{touch-action:manipulation}

/* ========== Desktop breakpoints (min-width) ========== */

/* Tablet and up */
@media (min-width: 768px){
    .container,.nav-container{padding:0 2rem}
    .navbar{padding:1.2rem 0}
    .nav-burger{display:none}
    .nav-links{display:flex}
    .nav-links a{
        color:rgba(255,255,255,0.8);
        text-decoration:none;
        font-weight:600;
        padding:.35rem .5rem;
        position:relative;
        transition:color .25s
    }
    .nav-links a::after{
        content:'';
        position:absolute;
        bottom:-5px;
        left:0;
        height:1px;
        width:0;
        background:#fff;
        transition:width .25s
    }
    .nav-links a:hover{color:#fff}
    .nav-links a:hover::after{width:100%}
    .hero{padding:6rem 2rem;min-height: calc(100vh - 80px)}
    .hero h1{font-size:clamp(2.4rem,6vw,4.2rem)}
    .hero p{font-size:1.05rem}
    .stats-grid{grid-template-columns:repeat(3,1fr);gap:2rem}
    .services-grid{grid-template-columns:repeat(2, minmax(300px,1fr));gap:1.25rem}
    .service-card{padding:1.5rem;border-radius:18px}
    .contact-form{padding:2rem;border-radius:18px}
    .checkbox-grid{grid-template-columns:repeat(2,1fr)}
    .footer-content{flex-direction:row;justify-content:space-between;align-items:center}
}

/* Desktop */
@media (min-width: 1024px){
    .container,.nav-container{padding:0 3rem}
    .hero{padding:8rem 3rem}
    .hero h1{font-size:clamp(3rem,7vw,6.5rem)}
    .hero p{font-size:1.2rem;max-width:760px}
    .services-grid{grid-template-columns:repeat(3, minmax(300px,1fr));gap:2rem}
    .service-card{
        padding:2.25rem;
        border-radius:24px;
    }
    .service-card:not(.hidden):hover{
        transform:translateY(-10px);
        box-shadow:0 30px 60px rgba(0,0,0,0.5);
        border-color:rgba(255,255,255,0.12)
    }
    .stat-number{font-size:4rem}
    .checkbox-grid{grid-template-columns:repeat(3,1fr)}
}

/* Large screens */
@media (min-width: 1440px){
    .container{max-width:var(--max-content)}
    .hero-content{max-width:1200px}
    .services-grid{gap:2.5rem}
}

/* Accessibility */
a:focus,button:focus,input:focus,textarea:focus{
    outline:2px solid rgba(255,255,255,0.12);
    outline-offset:2px
}