/* StreamTerract — site (même charte que le logiciel) */
:root {
  --bg: #0b0c12; --panel: #13151f; --panel2: #1b1e2b; --panel3: #232738; --border: #262a3b; --border2: #343a52;
  --text: #eef0f7; --soft: #c5cadb; --muted: #8a91aa;
  --pink: #ff2d6f; --orange: #ff7a3d; --cyan: #2ee6e6; --green: #2fd47d; --violet: #8b7bff;
  --grad: linear-gradient(135deg, var(--pink), var(--orange));
  --radius: 20px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.65 Inter, system-ui, -apple-system, 'Segoe UI', sans-serif; overflow-x: hidden; -webkit-font-smoothing: antialiased; }
body::before { content: ''; position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(900px 600px at 5% -10%, rgba(255, 45, 111, .22), transparent 60%),
    radial-gradient(700px 600px at 100% 25%, rgba(46, 230, 230, .10), transparent 60%),
    radial-gradient(900px 700px at 30% 115%, rgba(139, 123, 255, .16), transparent 60%); }
body::after { content: ''; position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: .5;
  background-image: linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 48px 48px; mask-image: radial-gradient(ellipse at 50% 0%, #000 30%, transparent 75%); }
h1, h2, h3, .brand, .btn, .strip b { font-family: Poppins, Inter, sans-serif; }
a { color: var(--cyan); text-decoration: none; }
code { background: var(--panel3); padding: 2px 8px; border-radius: 6px; font-size: .9em; color: #fff; }
::selection { background: rgba(255, 45, 111, .35); }
.nowrap { white-space: nowrap; }
.pink { color: var(--pink); } .cyan { color: var(--cyan); } .muted { color: var(--muted); } .small { font-size: 13px; } .center { text-align: center; justify-content: center; }
.grad-text, .grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* ---------- barre de navigation ---------- */
.nav { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 14px; padding: 12px 5vw;
  background: rgba(11, 12, 18, .72); backdrop-filter: blur(16px) saturate(1.4); border-bottom: 1px solid rgba(255,255,255,.06); }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 21px; color: #fff; letter-spacing: -.4px; margin-right: auto; }
.brand img { width: 32px; height: 32px; }
.brand small { font-weight: 600; color: var(--muted); font-size: 14px; }
.logo-chip { width: 34px; height: 34px; border-radius: 10px; display: inline-grid; place-items: center; font-size: 15px; color: #fff; background: var(--grad); box-shadow: 0 6px 18px rgba(255, 45, 111, .4); }
.nav nav { display: flex; gap: 4px; margin-right: 8px; }
.nav nav a { color: var(--muted); font-weight: 600; font-size: 14.5px; padding: 8px 12px; border-radius: 10px; transition: color .15s, background .15s; }
.nav nav a:hover { color: #fff; background: rgba(255,255,255,.05); }
.burger { display: none; background: none; border: 0; width: 42px; height: 42px; border-radius: 10px; cursor: pointer; padding: 10px; flex-direction: column; justify-content: center; gap: 5px; }
.burger span { display: block; height: 2px; background: #fff; border-radius: 2px; transition: transform .2s, opacity .2s; }
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- boutons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 24px; border-radius: 14px; font-weight: 700; color: #fff;
  background: var(--grad); border: 1px solid transparent; box-shadow: 0 10px 30px rgba(255, 45, 111, .35); transition: transform .15s, box-shadow .15s, background .15s, border-color .15s; cursor: pointer; }
.btn:hover { transform: translateY(-2px); box-shadow: 0 16px 40px rgba(255, 45, 111, .5); }
.btn.big { font-size: 17px; padding: 16px 30px; border-radius: 16px; }
.btn.small { padding: 9px 16px; font-size: 14px; border-radius: 12px; }
.btn.ghost { background: rgba(255,255,255,.04); border-color: var(--border2); box-shadow: none; }
.btn.ghost:hover { background: rgba(255,255,255,.08); border-color: #4a5170; }
.btn.disabled { background: var(--panel2); box-shadow: none; color: var(--muted); }

/* ---------- héros ---------- */
.hero { display: grid; grid-template-columns: 1.25fr 1fr; gap: 40px; align-items: center; padding: 64px 5vw 40px; max-width: 1280px; margin: 0 auto; }
.pill-new { display: inline-flex; align-items: center; gap: 10px; padding: 5px 14px 5px 5px; border-radius: 99px; font-size: 14px; font-weight: 600; color: var(--soft);
  background: rgba(255,255,255,.04); border: 1px solid var(--border2); transition: border-color .15s; }
.pill-new b { background: var(--grad); color: #fff; padding: 3px 10px; border-radius: 99px; font-size: 12px; letter-spacing: .3px; }
.pill-new span { color: var(--pink); transition: transform .15s; }
.pill-new:hover { border-color: var(--pink); }
.pill-new:hover span { transform: translateX(3px); }
.hero h1 { font-size: clamp(38px, 4.9vw, 64px); line-height: 1.04; margin: 22px 0 18px; font-weight: 900; letter-spacing: -2px; }
.wave { display: inline-block; animation: flame 2.4s ease-in-out infinite; transform-origin: 50% 90%; }
@keyframes flame { 50% { transform: scale(1.12) rotate(-6deg); } }
.lead { font-size: 18.5px; color: var(--soft); max-width: 600px; margin: 0; }
.cta-row { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin: 30px 0 12px; }
.meta { color: var(--muted); font-size: 14px; margin: 0; }
.checks { list-style: none; padding: 0; margin: 22px 0 0; display: flex; gap: 22px; flex-wrap: wrap; color: var(--soft); font-weight: 600; font-size: 15px; }
.checks i { font-style: normal; display: inline-grid; place-items: center; width: 20px; height: 20px; border-radius: 50%; margin-right: 6px; font-size: 12px; color: #04150c; background: var(--green); }
.platforms { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.pf { font-size: 13px; font-weight: 700; padding: 6px 12px; border-radius: 99px; border: 1px solid var(--border2); background: rgba(255,255,255,.03); color: var(--soft); }
.pf.tt { border-color: rgba(255, 45, 111, .45); } .pf.tw { border-color: rgba(145, 70, 255, .55); } .pf.yt { border-color: rgba(255, 0, 51, .5); }

.hero-visual { position: relative; justify-self: center; padding: 20px 90px; }
.phone { width: min(330px, 78vw); aspect-ratio: 9 / 16; border-radius: 42px; padding: 10px; background: #000; border: 2px solid #2a2e3a;
  box-shadow: 0 40px 100px rgba(0, 0, 0, .7), 0 0 90px rgba(255, 45, 111, .28); position: relative; z-index: 1; }
.phone video { width: 100%; height: 100%; border-radius: 32px; object-fit: cover; background: #000; display: block; }
.float { position: absolute; z-index: 2; display: flex; align-items: center; gap: 10px; padding: 10px 14px; border-radius: 16px; font-size: 14px; line-height: 1.3;
  background: rgba(19, 21, 31, .88); backdrop-filter: blur(10px); border: 1px solid var(--border2); box-shadow: 0 18px 40px rgba(0,0,0,.5); animation: bob 5s ease-in-out infinite; white-space: nowrap; }
.float small { display: block; color: var(--muted); font-size: 12px; }
.float .fi { width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; font-size: 18px; background: rgba(255,255,255,.06); }
.float.f1 { top: 10%; left: -30px; border-color: rgba(255, 45, 111, .45); }
.float.f2 { top: 30%; right: -40px; border-color: rgba(46, 230, 230, .45); animation-delay: -1.6s; }
.float.f3 { bottom: 22%; left: -40px; border-color: rgba(139, 123, 255, .45); animation-delay: -3.2s; }
@keyframes bob { 50% { transform: translateY(-10px); } }

/* ---------- chiffres ---------- */
.strip { display: grid; grid-template-columns: repeat(4, 1fr); max-width: 1100px; margin: 30px auto 0; padding: 8px; border: 1px solid var(--border); border-radius: 24px;
  background: rgba(19, 21, 31, .7); backdrop-filter: blur(8px); }
.strip > div { text-align: center; padding: 18px 10px; border-radius: 18px; }
.strip > div + div { border-left: 1px solid var(--border); border-radius: 0; }
.strip span { font-size: 22px; display: block; }
.strip b { display: block; font-size: 38px; font-weight: 900; line-height: 1.1; letter-spacing: -1px; background: linear-gradient(180deg, #fff, #b9bfd6); -webkit-background-clip: text; background-clip: text; color: transparent; }
.strip small { color: var(--muted); font-size: 14px; }

/* ---------- sections ---------- */
.section { max-width: 1200px; margin: 0 auto; padding: 100px 5vw 10px; }
.head { text-align: center; max-width: 720px; margin: 0 auto 44px; }
.head p { color: var(--muted); font-size: 17px; margin: 12px 0 0; }
.kicker { display: inline-block; color: var(--cyan); font-weight: 800; letter-spacing: 1.6px; text-transform: uppercase; font-size: 12.5px; padding: 5px 12px; border-radius: 99px;
  background: rgba(46, 230, 230, .08); border: 1px solid rgba(46, 230, 230, .25); }
.section h2 { font-size: clamp(30px, 4vw, 48px); line-height: 1.1; margin: 16px 0 0; font-weight: 900; letter-spacing: -1.2px; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 16px; }
.feature { position: relative; overflow: hidden; background: linear-gradient(180deg, rgba(255,255,255,.025), transparent 60%), var(--panel); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 26px; transition: border-color .25s, transform .25s, box-shadow .25s; }
.feature::after { content: ''; position: absolute; width: 180px; height: 180px; right: -60px; top: -60px; border-radius: 50%; background: var(--c); opacity: .08; filter: blur(10px); transition: opacity .25s; }
.feature:hover { border-color: color-mix(in srgb, var(--c) 55%, transparent); transform: translateY(-4px); box-shadow: 0 20px 50px rgba(0,0,0,.35); }
.feature:hover::after { opacity: .18; }
.feature .ico { width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center; font-size: 26px;
  background: color-mix(in srgb, var(--c) 15%, transparent); border: 1px solid color-mix(in srgb, var(--c) 35%, transparent); }
.feature h3 { margin: 16px 0 6px; font-size: 19px; letter-spacing: -.3px; }
.feature p { color: var(--muted); margin: 0; font-size: 15px; }

/* ---------- visite du logiciel ---------- */
.tour { display: grid; grid-template-columns: 260px 1fr; gap: 20px; align-items: start; }
.tour-tabs { display: flex; flex-direction: column; gap: 6px; }
.tour-tabs button { text-align: left; font: 600 15px Inter, sans-serif; color: var(--soft); background: transparent; border: 1px solid transparent; border-radius: 14px; padding: 12px 16px; cursor: pointer; transition: all .15s; }
.tour-tabs button small { display: block; color: var(--muted); font-weight: 500; font-size: 13px; }
.tour-tabs button:hover { background: rgba(255,255,255,.04); }
.tour-tabs button.active { color: #fff; background: linear-gradient(90deg, rgba(255, 45, 111, .16), rgba(255, 122, 61, .04)); border-color: rgba(255, 45, 111, .3); }
.window { border-radius: 18px; overflow: hidden; border: 1px solid var(--border2); background: var(--panel); box-shadow: 0 40px 100px rgba(0,0,0,.6), 0 0 0 8px rgba(255,255,255,.02); }
.window-bar { display: flex; align-items: center; gap: 7px; padding: 10px 14px; background: #10121a; border-bottom: 1px solid var(--border); }
.window-bar i { width: 11px; height: 11px; border-radius: 50%; background: #ff5f57; } .window-bar i:nth-child(2) { background: #febc2e; } .window-bar i:nth-child(3) { background: #28c840; }
.window-bar span { margin-left: 10px; color: var(--muted); font-size: 13px; font-weight: 600; }
.window-body { position: relative; aspect-ratio: 1400 / 900; }
.window-body img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: top left; opacity: 0; transform: scale(1.01); transition: opacity .35s, transform .35s; }
.window-body img.active { opacity: 1; transform: none; }

/* ---------- sections image + texte ---------- */
.split { display: grid; grid-template-columns: 1fr 1.25fr; gap: 56px; align-items: center; }
.split.reverse { grid-template-columns: 1.25fr 1fr; }
.split.reverse > div:first-child { order: 2; }
.split h2 { margin-bottom: 18px; }
.split p { color: var(--soft); font-size: 17px; }
.shot-wrap { position: relative; }
.shot-wrap::before { content: ''; position: absolute; inset: 10% 5%; background: var(--grad); filter: blur(60px); opacity: .22; z-index: -1; }
.shot { width: 100%; display: block; border-radius: 18px; border: 1px solid var(--border2); box-shadow: 0 30px 80px rgba(0, 0, 0, .6); }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.tags span { background: rgba(255,255,255,.04); border: 1px solid var(--border2); padding: 7px 14px; border-radius: 99px; font-weight: 600; font-size: 14px; }

/* ---------- alertes & galerie ---------- */
.alerts { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 14px; }
.alert-box { position: relative; aspect-ratio: 16 / 10; border-radius: 18px; overflow: hidden; border: 1px solid var(--border);
  background: radial-gradient(circle at 30% 20%, #3b2a6b, transparent 55%), radial-gradient(circle at 80% 80%, #6b1f3b, transparent 55%), #12101e; transition: transform .25s, border-color .25s; }
.alert-box:hover { transform: translateY(-4px); border-color: var(--border2); }
.alert-box img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.5); }
.alert-box span { position: absolute; left: 12px; bottom: 12px; font-size: 12px; font-weight: 700; padding: 4px 10px; border-radius: 99px; background: rgba(0,0,0,.55); backdrop-filter: blur(6px); }

.gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 14px; }
.gallery img { width: 100%; display: block; border-radius: 14px; border: 1px solid var(--border); transition: transform .25s, box-shadow .25s; }
.gallery img:hover { transform: translateY(-4px) scale(1.02); box-shadow: 0 20px 50px rgba(0,0,0,.5); }
.gallery.tall { grid-template-columns: repeat(3, minmax(0, 230px)); justify-content: center; }

/* ---------- étapes ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; counter-reset: s; }
.steps > div { position: relative; background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; }
.steps b { display: inline-grid; place-items: center; width: 48px; height: 48px; border-radius: 14px; background: var(--grad); font-size: 22px; box-shadow: 0 10px 26px rgba(255, 45, 111, .35); }
.steps h3 { margin: 16px 0 6px; font-size: 20px; }
.steps p { color: var(--muted); margin: 0; font-size: 15px; }

/* ---------- FAQ ---------- */
.faq { max-width: 860px; }
.faq details { background: var(--panel); border: 1px solid var(--border); border-radius: 16px; margin-bottom: 10px; transition: border-color .2s; }
.faq details[open] { border-color: var(--border2); }
.faq summary { font-weight: 700; cursor: pointer; font-size: 16.5px; padding: 18px 56px 18px 22px; list-style: none; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; position: absolute; right: 18px; top: 50%; width: 28px; height: 28px; margin-top: -14px; border-radius: 8px; display: grid; place-items: center;
  background: rgba(255,255,255,.05); color: var(--pink); font-size: 20px; font-weight: 600; transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq p { color: var(--soft); margin: 0; padding: 0 22px 20px; }

/* ---------- nouveautés ---------- */
.changelog { max-width: 820px; margin: 0 auto; position: relative; }
.changelog::before { content: ''; position: absolute; left: 7px; top: 12px; bottom: 12px; width: 2px; background: linear-gradient(var(--pink), transparent); }
.version { position: relative; margin: 0 0 16px 32px; padding: 18px 22px; background: var(--panel); border: 1px solid var(--border); border-radius: 16px; }
.version::before { content: ''; position: absolute; left: -32px; top: 22px; width: 16px; height: 16px; border-radius: 50%; background: var(--bg); border: 3px solid var(--border2); }
.version.latest { border-color: rgba(255, 45, 111, .4); background: linear-gradient(90deg, rgba(255, 45, 111, .08), transparent 60%), var(--panel); }
.version.latest::before { border-color: var(--pink); box-shadow: 0 0 0 5px rgba(255, 45, 111, .18); }
.vhead { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.vhead b { font-size: 17px; }
.vhead time { color: var(--muted); font-size: 14px; margin-left: auto; }
.tag-new { font-size: 11px; font-weight: 800; letter-spacing: .5px; text-transform: uppercase; padding: 3px 9px; border-radius: 99px; background: var(--grad); }
.version ul { margin: 10px 0 0; padding-left: 20px; color: var(--soft); }
.version li { margin: 3px 0; }
.version li::marker { color: var(--pink); }

/* ---------- appel final & pied de page ---------- */
.final { padding: 100px 5vw 80px; }
.final-card { max-width: 1000px; margin: 0 auto; text-align: center; padding: 60px 30px; border-radius: 30px; position: relative; overflow: hidden;
  background: radial-gradient(600px 300px at 20% 0%, rgba(255, 45, 111, .3), transparent 60%), radial-gradient(500px 300px at 90% 100%, rgba(46, 230, 230, .18), transparent 60%), var(--panel);
  border: 1px solid var(--border2); box-shadow: 0 40px 100px rgba(0,0,0,.5); }
.final h2 { font-size: clamp(30px, 4vw, 50px); font-weight: 900; margin: 0; letter-spacing: -1.2px; line-height: 1.1; }
.final p { color: var(--soft); font-size: 18px; margin: 14px 0 0; }
footer { padding: 40px 5vw 50px; border-top: 1px solid var(--border); color: var(--muted); }
.foot { max-width: 1200px; margin: 0 auto 20px; display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.foot .brand { margin-right: 0; }
.foot p { margin: 0; }
.foot-links { margin-left: auto; display: flex; gap: 18px; flex-wrap: wrap; }
.foot-links a { color: var(--soft); font-weight: 600; font-size: 14.5px; }
.foot-links a:hover { color: #fff; }
footer > p { max-width: 1200px; margin: 0 auto; }
.mobile-dl, .only-sm { display: none; }

/* ---------- apparition au défilement ---------- */
.anim .reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; transition-delay: calc(var(--d, 0) * 80ms); }
.anim .reveal.in { opacity: 1; transform: none; }

/* ---------- tablettes & téléphones ---------- */
@media (max-width: 980px) {
  .hero, .split, .split.reverse { grid-template-columns: 1fr; }
  .split.reverse > div:first-child { order: 0; }
  .hero { padding-top: 36px; text-align: left; }
  .hero-visual { padding: 10px 40px; }
  .tour { grid-template-columns: 1fr; }
  .tour-tabs { flex-direction: row; overflow-x: auto; padding-bottom: 6px; scrollbar-width: none; }
  .tour-tabs button { white-space: nowrap; }
  .tour-tabs button small { display: none; }
  .steps { grid-template-columns: 1fr; }
  .nav nav { display: none; position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; gap: 2px; padding: 10px 5vw 16px;
    background: #0b0c12; border-bottom: 1px solid var(--border); box-shadow: 0 20px 40px rgba(0,0,0,.5); }
  .nav nav.open { display: flex; }
  .nav nav a { padding: 12px; font-size: 16px; }
  .burger { display: flex; }
  .hide-sm { display: none; }
  .nav nav.open .only-sm { display: block; }
}
@media (max-width: 640px) {
  body { padding-bottom: 76px; }
  .mobile-dl.show { transform: none !important; }
  .nav .btn.small { display: none; }
  .strip { grid-template-columns: repeat(2, 1fr); }
  .strip > div + div { border-left: 0; }
  .gallery { grid-template-columns: 1fr 1fr; }
  .gallery.tall { grid-template-columns: repeat(3, 1fr); }
  .section { padding-top: 70px; }
  .float { display: none; }
  .float .fi { width: 30px; height: 30px; font-size: 15px; }
  .float.f1 { left: -6px; } .float.f2 { right: -6px; } .float.f3 { left: -6px; }
  .hero-visual { padding: 10px 16px; }
  .cta-row .btn { width: 100%; }
  .foot-links { margin-left: 0; }
  .mobile-dl { display: flex; justify-content: center; position: fixed; left: 12px; right: 12px; bottom: 12px; z-index: 30; padding: 15px; border-radius: 16px; transform: translateY(140%); transition: transform .3s;
    font: 700 16px Poppins, sans-serif; color: #fff; background: var(--grad); box-shadow: 0 12px 34px rgba(255, 45, 111, .5); }
}
@media (prefers-reduced-motion: reduce) { .float, .wave { animation: none; } }

/* ---------- administration ---------- */
.admin { max-width: 860px; margin: 40px auto; padding: 0 5vw; }
.admin .card { background: var(--panel); border: 1px solid var(--border); border-radius: 20px; padding: 26px; margin-bottom: 20px; }
.admin h1 { font-size: 30px; }
.admin label { display: block; font-weight: 600; margin: 14px 0 6px; }
.admin input[type=text], .admin input[type=password], .admin textarea, .admin select { width: 100%; padding: 12px 14px; border-radius: 12px; border: 1px solid var(--border); background: var(--panel2); color: var(--text); font: inherit; }
.admin textarea { min-height: 120px; }
.admin button { margin-top: 18px; border: 0; cursor: pointer; font: inherit; }
.admin .msg { padding: 12px 16px; border-radius: 12px; margin-bottom: 16px; font-weight: 600; }
.admin .ok { background: rgba(46, 204, 113, .15); color: var(--green); }
.admin .err { background: rgba(254, 44, 85, .15); color: #ff8fa3; }
.admin .kv { display: grid; grid-template-columns: 220px 1fr; gap: 8px 16px; }
.admin .kv span { color: var(--muted); }
.admin .copy { display: flex; gap: 8px; }
.admin .copy input { font-family: ui-monospace, Consolas, monospace; }