/* Xenyra install page (T2): rewritten from scratch. Colours from ../css/tokens.css (light + dark),
   buttons from ../css/xh-btn.css, so this page looks and switches exactly like the hub. No overrides. */
@font-face{font-family:Inter;font-style:normal;font-weight:300 900;font-display:swap;src:url(../fonts/inter-var.woff2) format('woff2')}
@font-face{font-family:Cardo;font-style:normal;font-weight:400;font-display:swap;src:url(../fonts/cardo-400.woff2) format('woff2')}
:root{font-family:var(--xt-font);font-synthesis:none}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;min-height:100vh;color:var(--xt-ink);background:radial-gradient(900px 520px at 82% 8%,var(--xt-glow-a) 0%,transparent 70%),radial-gradient(700px 480px at 6% 4%,var(--xt-glow-b) 0%,transparent 70%),var(--xt-bg)}
a{color:inherit}
button,select{font:inherit}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* header: fixed glass bar, the way back is always top left */
.bar{position:sticky;top:0;z-index:30;background:rgb(var(--xt-surface-rgb) / .55);border-bottom:1px solid rgb(var(--xt-line-rgb) / .85);-webkit-backdrop-filter:blur(18px) saturate(1.6);backdrop-filter:blur(18px) saturate(1.6)}
.bar-in{width:min(100%,1230px);margin:auto;min-height:var(--xt-head-h);display:flex;align-items:center;gap:14px;padding:10px clamp(16px,4vw,48px)}
.back{display:inline-flex;align-items:center;gap:6px;min-height:44px;padding:0 14px 0 8px;border-radius:var(--xt-r-pill);color:var(--xt-mute);font-size:15px;font-weight:400;text-decoration:none;white-space:nowrap;transition:color .18s,background .18s}
.back svg{display:block;flex:none;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.back:hover{color:var(--xt-blue);background:var(--xt-tint)}
.back:focus-visible{outline:2px solid var(--xt-blue);outline-offset:2px}
.brand{display:flex;align-items:center;gap:10px;margin-right:auto;padding-left:14px;border-left:1px solid var(--xt-line);text-decoration:none;min-width:0}
.brand img{display:block;object-fit:contain;border-radius:10px}
.brand span{display:flex;flex-direction:column;gap:2px;min-width:0}
.brand strong{font-size:16px;font-weight:600;letter-spacing:-.01em;white-space:nowrap}
.brand small{font-size:11px;color:var(--xt-mute);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.lang-picker select{min-height:42px;padding:0 12px;border:1px solid var(--xt-line-2);border-radius:var(--xt-r-ctl);background:var(--xt-surface);color:var(--xt-ink-2);font-size:13px;font-weight:500;cursor:pointer}
.lang-picker select:focus-visible{outline:3px solid var(--xt-focus);outline-offset:2px}

/* page */
.app{width:min(100%,1230px);min-height:calc(100vh - var(--xt-head-h));margin:auto;display:flex;flex-direction:column;padding:0 clamp(16px,4vw,48px)}
.main{flex:1;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(320px,.9fr);gap:28px 56px;align-items:center;padding:clamp(28px,5vw,64px) 0}
.hero{display:flex;flex-direction:column;align-items:flex-start;max-width:640px}
.app-logo{display:grid;place-items:center;width:104px;height:104px;margin-bottom:26px;border:1px solid var(--xt-line);border-radius:30px;background:var(--xt-surface);box-shadow:0 16px 42px rgb(var(--xt-shadow-rgb) / .18);animation:logoFloat 5.5s ease-in-out infinite}
.app-logo img{display:block;object-fit:contain}
.eyebrow{display:inline-block;margin:0;padding:8px 14px;border:1px solid var(--xt-pill-line);border-radius:var(--xt-r-pill);background:var(--xt-surface);color:var(--xt-eyebrow);font-size:12px;font-weight:500;letter-spacing:.16em;text-transform:uppercase}
.hero h1{margin:18px 0 20px;font-family:var(--xt-serif);font-size:clamp(42px,5.4vw,74px);font-weight:400;line-height:1.04;letter-spacing:-.01em;color:var(--xt-ink)}
.hero em{font-style:normal;color:var(--xt-accent-ink)}
.lead{max-width:560px;margin:0 0 30px;font-size:18px;font-weight:300;line-height:1.6;color:var(--xt-text)}
.cta{display:flex;flex-wrap:wrap;align-items:center;gap:14px}
.install-cta{display:inline-flex;align-items:center;gap:8px}
.status{min-height:20px;margin:14px 0 0;font-size:14px;line-height:1.5;color:var(--xt-mute)}

/* info "i" with a short glass note (same look as the hub hints) */
.why{position:relative;flex:none}
.why summary{display:grid;place-items:center;width:22px;height:22px;list-style:none;border:1px solid rgb(var(--xt-slate-rgb) / .55);border-radius:50%;color:var(--xt-slate);font:italic 500 12px/1 Georgia,serif;cursor:pointer;transition:color .2s,border-color .2s,background .2s}
.why summary::-webkit-details-marker{display:none}
.why summary:hover,.why[open] summary,.why summary:focus-visible{color:var(--xt-blue);border-color:var(--xt-blue);background:var(--xt-tint);outline:none}
.why-pop{position:absolute;z-index:10;left:50%;bottom:calc(100% + 10px);width:min(320px,86vw);padding:12px 14px;transform:translateX(-50%);border:1px solid rgba(79,209,255,.28);border-radius:14px;
  background:linear-gradient(135deg,rgba(79,209,255,.12),rgba(139,92,246,.08)),rgb(var(--xt-surface-rgb) / .94);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:0 14px 34px -16px rgb(var(--xt-shadow-blue-rgb) / .45);color:var(--xt-ink-4);font-size:13px;line-height:1.5}
.why-pop strong{display:block;margin-bottom:4px;font-weight:600}
.why-pop p{margin:0}

/* install guide card */
.guide{min-width:0;padding:clamp(20px,2.4vw,28px);border:1px solid var(--xt-line);border-radius:26px;background:rgb(var(--xt-surface-rgb) / .9);box-shadow:0 24px 60px -34px rgb(var(--xt-shadow-rgb) / .45)}
.guide-kicker{margin:0 0 8px;color:var(--xt-eyebrow);font-size:11px;font-weight:500;letter-spacing:.16em}
.guide h2{margin:0;font-family:var(--xt-serif);font-size:clamp(26px,2.6vw,32px);font-weight:400;line-height:1.15;color:var(--xt-ink)}
.guide-sub:empty{display:none}
.device-select{display:flex;gap:4px;margin:18px 0 20px;padding:4px;border:1px solid var(--xt-line);border-radius:16px;background:var(--xt-soft)}
.device-pill{flex:1;min-height:44px;border:0;border-radius:12px;background:transparent;color:var(--xt-mute);font-size:15px;font-weight:500;cursor:pointer;transition:background .2s,color .2s,box-shadow .2s}
.device-pill:hover{color:var(--xt-ink)}
.device-pill[aria-pressed="true"]{background:var(--xt-surface);color:var(--xt-blue);box-shadow:0 4px 14px rgb(var(--xt-shadow-rgb) / .14)}
.device-pill:focus-visible{outline:3px solid var(--xt-focus);outline-offset:2px}
.guide-intro{margin:0 0 18px;font-size:15px;line-height:1.6;color:var(--xt-text)}

/* the 3 steps as one vertical flow: icon, number, text, joined by a soft Xenyra line */
.flow{list-style:none;margin:0 0 20px;padding:0;display:grid;gap:22px}
.flow-step{position:relative;display:grid;grid-template-columns:52px minmax(0,1fr);align-items:center;gap:16px;min-height:52px}
.flow-step:not(:last-child)::after{content:"";position:absolute;left:25px;top:56px;bottom:-18px;width:2px;border-radius:2px;background:linear-gradient(var(--xt-blue),var(--xt-violet));opacity:.3}
.flow-icon{display:grid;place-items:center;width:52px;height:52px;border:1px solid var(--xt-line);border-radius:16px;background:linear-gradient(135deg,var(--xt-chip-a),var(--xt-chip-b));color:var(--xt-blue)}
.flow-icon svg{width:26px;height:26px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.flow-icon svg .dot{fill:currentColor;stroke:none}
.flow-num{position:absolute;left:36px;top:-8px;display:grid;place-items:center;width:22px;height:22px;border:2px solid var(--xt-surface);border-radius:50%;background:linear-gradient(135deg,#3355ff,#7a4df5);color:#fff;font-size:11px;font-weight:600}
.flow-text{font-size:15px;line-height:1.5;color:var(--xt-ink-2)}
.guide-warning{display:flex;gap:10px;margin:0;padding:12px 14px;border-left:3px solid var(--xt-blue);border-radius:12px;background:var(--xt-soft);font-size:13px;line-height:1.55;color:var(--xt-mute)}
.guide-warning:empty{display:none}

.foot{display:flex;justify-content:space-between;gap:12px;padding:22px 0 calc(16px + env(safe-area-inset-bottom,0px));border-top:1px solid var(--xt-line);font-size:13px;color:var(--xt-faint)}

@keyframes logoFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-4px)}}

@media(max-width:860px){
  .main{grid-template-columns:minmax(0,1fr);gap:26px;padding:26px 0}
  .app-logo{width:84px;height:84px;border-radius:24px;margin-bottom:18px}
  .app-logo img{width:70px;height:70px}
  .hero h1{font-size:clamp(38px,8vw,52px)}
  .lead{font-size:16px;line-height:1.55;margin-bottom:22px}
  .why-pop{position:fixed;left:16px;right:16px;bottom:20px;transform:none;width:auto}
}
@media(max-width:560px){
  .bar-in{gap:8px;padding:8px 12px}
  .back{padding:0 10px 0 4px;font-size:14px}
  .brand{padding-left:10px}
  .brand small{display:none}
  .cta{width:100%;flex-direction:column;align-items:stretch}
  .install-cta{width:100%}
  .install-cta .xh-btn{flex:1}
  .cta>.xh-btn{width:100%}
}
@media(max-width:380px){.brand span{display:none}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.app-logo{animation:none}.back,.device-pill,.why summary{transition:none}}