:root {
    --bg: #0b0f16;
    --bg-soft: #0f141c;
    --card: #131a24;
    --border: #212b38;
    --text: #a9b4c2;
    --text-bold: #eef2f7;
    --accent: #58a6ff;
    --violet: #a371f7;
    --font: 'Space Grotesk', system-ui, sans-serif;
    --mono: 'JetBrains Mono', ui-monospace, monospace;
    --radius: 18px;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 88px; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font: 400 17px/1.65 var(--font);
    -webkit-font-smoothing: antialiased;
    overflow-x: clip;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }

#sky {
    position: fixed;
    inset: 0;
    z-index: -1;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(ellipse 70% 50% at 85% -10%, rgb(88 166 255 / .14), transparent 70%),
        radial-gradient(ellipse 50% 40% at 0% 40%, rgb(163 113 247 / .08), transparent 70%),
        var(--bg);
}

/* Barre du haut */
.topbar {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 14px clamp(16px, 4vw, 48px);
    padding-top: max(14px, env(safe-area-inset-top));
    background: rgb(11 15 22 / .72);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid rgb(255 255 255 / .05);
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text-bold); font-weight: 700; letter-spacing: .2em; font-size: 14px; }
.brand img { border-radius: 10px; }
.topnav { display: flex; gap: 26px; margin-left: auto; font: 500 12px var(--mono); letter-spacing: .14em; text-transform: uppercase; }
.topnav a { text-decoration: none; color: var(--text); transition: color .2s; }
.topnav a:hover { color: var(--accent); }
.topbar-actions { display: flex; align-items: center; gap: 12px; }
.lang { display: inline-flex; padding: 3px; border: 1px solid var(--border); border-radius: 999px; }
.lang button { border: 0; background: none; color: var(--text); font: 500 11px var(--mono); letter-spacing: .1em; padding: 6px 10px; border-radius: 999px; cursor: pointer; }
.lang button[aria-pressed="true"] { background: rgb(88 166 255 / .16); color: var(--accent); }
.icon-link { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 10px; color: var(--text); transition: color .2s, background .2s; }
.icon-link:hover { color: var(--text-bold); background: rgb(255 255 255 / .05); }
.icon-link svg { width: 20px; height: 20px; }

/* En-tête */
.hero {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 56px;
    max-width: 1240px;
    margin: 0 auto;
    padding: clamp(56px, 10vw, 120px) clamp(16px, 4vw, 48px) 40px;
}
.hero-photo {
    position: absolute;
    inset: 0 0 auto auto;
    width: min(760px, 70vw);
    aspect-ratio: 1;
    background: url('img/iris.webp') center / cover;
    opacity: .28;
    mask-image: radial-gradient(circle at 60% 40%, #000 0%, transparent 65%);
    -webkit-mask-image: radial-gradient(circle at 60% 40%, #000 0%, transparent 65%);
    pointer-events: none;
}
.hero-content { position: relative; max-width: 760px; }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; margin: 0 0 22px; padding: 6px 14px; border: 1px solid rgb(88 166 255 / .3); border-radius: 999px; background: rgb(88 166 255 / .08); color: var(--accent); font: 500 12px var(--mono); letter-spacing: .08em; }
.pulse { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgb(88 166 255 / .6); animation: pulse 2.4s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 9px rgb(88 166 255 / 0); } 100% { box-shadow: 0 0 0 0 rgb(88 166 255 / 0); } }
h1 { margin: 0; color: var(--text-bold); font-size: clamp(40px, 6.4vw, 78px); line-height: 1.02; letter-spacing: -.035em; font-weight: 700; }
h1 em { font-style: normal; background: linear-gradient(90deg, var(--accent), var(--violet)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { margin: 26px 0 0; max-width: 640px; font-size: clamp(17px, 2vw, 20px); }
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.cta.center { justify-content: center; }
.button { display: inline-flex; align-items: center; min-height: 48px; padding: 0 22px; border: 1px solid var(--border); border-radius: 14px; color: var(--text-bold); font-weight: 600; font-size: 15px; text-decoration: none; transition: border-color .2s, background .2s, transform .2s; }
.button:hover { border-color: rgb(88 166 255 / .5); transform: translateY(-1px); }
.button.primary { border-color: transparent; background: var(--accent); color: #07111f; box-shadow: 0 10px 40px -12px rgb(88 166 255 / .7); }
.button.primary:hover { background: #7dbbff; }
.stack { display: flex; flex-wrap: wrap; gap: 8px; margin: 34px 0 0; padding: 0; list-style: none; }
.stack li { padding: 5px 11px; border: 1px solid var(--border); border-radius: 8px; font: 500 11px var(--mono); letter-spacing: .06em; color: var(--text); }

/* Captures */
.frame { margin: 0; overflow: hidden; border: 1px solid var(--border); border-radius: var(--radius); background: var(--card); box-shadow: 0 40px 100px -40px rgb(0 0 0 / .9), 0 0 0 1px rgb(255 255 255 / .02); }
.frame-bar { display: flex; align-items: center; gap: 7px; padding: 11px 16px; border-bottom: 1px solid var(--border); background: var(--bg-soft); }
.frame-bar span { width: 10px; height: 10px; border-radius: 50%; background: #2a3442; }
.frame-bar code { margin: 0 auto; padding: 3px 14px; border-radius: 7px; background: rgb(255 255 255 / .04); font: 12px var(--mono); color: var(--text); }
.hero-shot { position: relative; transform: perspective(2200px) rotateX(8deg); transform-origin: top; transition: transform .8s ease; }
.hero-shot:hover { transform: none; }
.frame.wide { margin-top: 48px; }

/* Bandeau photos */
.strip { display: flex; gap: 14px; padding: 40px clamp(16px, 4vw, 48px); overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; }
.strip::-webkit-scrollbar { display: none; }
.strip figure { position: relative; flex: 0 0 clamp(220px, 24vw, 300px); margin: 0; aspect-ratio: 1; overflow: hidden; border-radius: 16px; border: 1px solid var(--border); scroll-snap-align: start; }
.strip img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s ease; }
.strip figure:hover img { transform: scale(1.06); }
.strip figcaption { position: absolute; inset: auto 0 0; padding: 30px 14px 12px; background: linear-gradient(transparent, rgb(0 0 0 / .8)); color: var(--text-bold); font: 500 12px var(--mono); letter-spacing: .06em; }

/* Sections */
.section { max-width: 1240px; margin: 0 auto; padding: clamp(64px, 10vw, 120px) clamp(16px, 4vw, 48px) 0; }
.kicker { margin: 0 0 12px; color: var(--accent); font: 500 12px var(--mono); letter-spacing: .2em; text-transform: uppercase; }
h2 { margin: 0; max-width: 820px; color: var(--text-bold); font-size: clamp(30px, 4.4vw, 50px); line-height: 1.08; letter-spacing: -.025em; }
.section-lead { max-width: 720px; margin: 18px 0 0; font-size: 18px; }
h3 { margin: 0 0 10px; color: var(--text-bold); font-size: 22px; letter-spacing: -.01em; }

.feature { display: grid; grid-template-columns: minmax(0, 1fr); gap: 36px; align-items: center; margin-top: 64px; }
.feature-text p { margin: 0; }
.ticks { display: grid; gap: 10px; margin: 22px 0 0; padding: 0; list-style: none; }
.ticks li { position: relative; padding-left: 28px; }
.ticks li::before { content: ''; position: absolute; left: 0; top: .62em; width: 14px; height: 2px; border-radius: 2px; background: linear-gradient(90deg, var(--accent), var(--violet)); }
.ticks.big { gap: 16px; font-size: 18px; color: var(--text-bold); }

.cards { display: grid; grid-template-columns: minmax(0, 1fr); gap: 16px; margin-top: 64px; }
.card { padding: 26px; border: 1px solid var(--border); border-radius: var(--radius); background: linear-gradient(180deg, rgb(255 255 255 / .025), transparent), var(--card); transition: border-color .25s, transform .25s; }
.card:hover { border-color: rgb(88 166 255 / .35); transform: translateY(-3px); }
.card p { margin: 0; font-size: 15.5px; }
.card-icon { display: grid; place-items: center; width: 42px; height: 42px; margin-bottom: 18px; border-radius: 12px; background: rgb(88 166 255 / .1); color: var(--accent); font-size: 20px; }

.duo { display: grid; grid-template-columns: minmax(0, 1fr); gap: 28px; align-items: center; margin-top: 64px; }
.phones { display: flex; justify-content: center; gap: 18px; }
.phone { width: min(46%, 240px); margin: 0; overflow: hidden; border: 6px solid #1a2230; border-radius: 34px; box-shadow: 0 30px 80px -30px rgb(0 0 0 / .9); }
.phones .phone:nth-child(2) { transform: translateY(36px); }
.phones.single .phone { width: min(70%, 260px); transform: none; }

.security { display: grid; grid-template-columns: minmax(0, 1fr); gap: 40px; align-items: center; margin-top: 40px; }

/* Installation */
.steps { counter-reset: step; display: grid; grid-template-columns: minmax(0, 1fr); gap: 22px; margin: 48px 0 0; padding: 0; list-style: none; }
.steps > li { position: relative; padding: 26px 26px 26px 76px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--card); }
.steps > li::before { counter-increment: step; content: counter(step); position: absolute; left: 24px; top: 24px; display: grid; place-items: center; width: 34px; height: 34px; border-radius: 10px; background: rgb(88 166 255 / .12); color: var(--accent); font: 600 15px var(--mono); }
.steps p { margin: 14px 0 0; font-size: 15px; }
pre { margin: 0; padding: 18px 20px; overflow-x: auto; border-radius: 12px; background: #070a0f; border: 1px solid var(--border); }
pre code { font: 13.5px/1.7 var(--mono); color: #c9e1ff; }
.env { display: grid; gap: 8px; }
.env div { display: grid; grid-template-columns: minmax(0, 1fr); gap: 2px 18px; padding: 10px 14px; border-radius: 10px; background: rgb(255 255 255 / .025); }
.env code { font: 500 13px var(--mono); color: var(--accent); }
.env span { font-size: 14.5px; }

.footer { display: flex; flex-direction: column; align-items: center; gap: 14px; margin-top: 120px; padding: 48px 16px calc(48px + env(safe-area-inset-bottom)); border-top: 1px solid rgb(255 255 255 / .05); text-align: center; font-size: 14px; }
.footer p { margin: 0; }
.footer a { color: var(--accent); text-decoration: none; }

/* Apparition au défilement */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .8s ease, transform .8s ease; }
.reveal.visible { opacity: 1; transform: none; }

@media (min-width: 760px) {
    .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .env div { grid-template-columns: 170px minmax(0, 1fr); align-items: baseline; }
}
@media (min-width: 1000px) {
    .feature { grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: 64px; }
    .feature.reverse .feature-text { order: 2; }
    .cards { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .duo { grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); }
    .security { grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); }
}
@media (max-width: 760px) {
    .topnav { display: none; }
    .steps > li { padding: 70px 18px 20px; }
    .steps > li::before { left: 18px; top: 20px; }
    .topbar-actions { margin-left: auto; }
    .hero-shot { transform: none; }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
    .reveal { opacity: 1; transform: none; }
}