:root{
    --bg:#060914;
    --panel:#10182a;
    --panel2:#151f35;
    --text:#f6f8fc;
    --muted:#9aa8c1;
    --accent:#55b8ff;
    --accent2:#8f7cff;
    --line:rgba(255,255,255,.10);
    --shadow:0 28px 90px rgba(0,0,0,.42);
    font-family:"Segoe UI Variable","Aptos","Segoe UI",Arial,sans-serif;
}
*{box-sizing:border-box}
html,body,form{width:100%;height:100%;margin:0}
body{background:var(--bg);color:var(--text)}
.pairing-body{
    min-height:100vh;
    overflow:auto;
    background:
        radial-gradient(circle at 12% 12%,rgba(85,184,255,.15),transparent 30%),
        radial-gradient(circle at 88% 82%,rgba(143,124,255,.12),transparent 34%),
        var(--bg);
}
.pairing-shell{
    min-height:100%;
    display:grid;
    place-items:center;
    padding:38px;
}
.pairing-card{
    width:min(1040px,95vw);
    border:1px solid var(--line);
    background:linear-gradient(180deg,rgba(20,30,51,.98),rgba(10,16,30,.98));
    border-radius:28px;
    padding:42px;
    box-shadow:var(--shadow);
    position:relative;
    overflow:hidden;
}
.pairing-card:before{
    content:"";
    position:absolute;
    width:300px;height:300px;border-radius:50%;
    background:rgba(85,184,255,.08);
    right:-130px;top:-130px;
}
.brand-mark{
    width:64px;height:64px;
    border-radius:18px;
    display:grid;place-items:center;
    font-size:23px;font-weight:800;letter-spacing:-1px;
    color:#06111c;
    background:linear-gradient(135deg,#7fd3ff,#9b8cff);
    margin-bottom:24px;
}
.eyebrow{font-size:13px;letter-spacing:.18em;font-weight:700;color:#7fd3ff}
.pairing-copy h1{font-size:clamp(34px,4vw,58px);margin:8px 0 10px;letter-spacing:-.04em}
.pairing-copy p{margin:0;max-width:720px;color:var(--muted);font-size:19px;line-height:1.55}
.pairing-content{
    display:grid;
    grid-template-columns:340px 1fr;
    gap:44px;
    align-items:center;
    margin-top:38px;
}
.qr-panel{
    background:#fff;
    border-radius:24px;
    padding:24px;
    box-shadow:0 18px 50px rgba(0,0,0,.26);
}
.qr-box{width:260px;height:260px;margin:auto;display:grid;place-items:center}
.qr-box img,.qr-box canvas{width:260px!important;height:260px!important}
.qr-caption{color:#1b2230;text-align:center;font-weight:700;margin-top:14px}
.pairing-details{
    min-width:0;
    background:rgba(255,255,255,.035);
    border:1px solid var(--line);
    border-radius:24px;
    padding:30px;
}
.detail-label{text-transform:uppercase;color:var(--muted);font-size:12px;letter-spacing:.15em;font-weight:700}
.pairing-code{
    display:block;
    font-size:clamp(44px,6vw,76px);
    font-weight:800;
    letter-spacing:.08em;
    margin:7px 0 26px;
    font-variant-numeric:tabular-nums;
}
.detail-row{
    display:grid;
    grid-template-columns:120px 1fr;
    gap:14px;
    padding:12px 0;
    border-top:1px solid var(--line);
    color:#d9e2f2;
}
.detail-row span:first-child{color:var(--muted)}
.device-id{word-break:break-all;font-family:Consolas,monospace;font-size:13px}
.waiting-line{
    margin-top:22px;
    display:flex;align-items:center;gap:10px;
    color:#c9d5e7;font-size:14px;
}
.waiting-dot{
    width:10px;height:10px;border-radius:50%;
    background:#59e49c;
    box-shadow:0 0 0 0 rgba(89,228,156,.45);
    animation:pulse 1.5s infinite;
}
@keyframes pulse{
    0%{box-shadow:0 0 0 0 rgba(89,228,156,.42)}
    70%{box-shadow:0 0 0 10px rgba(89,228,156,0)}
    100%{box-shadow:0 0 0 0 rgba(89,228,156,0)}
}
.pairing-footer{margin-top:28px;color:var(--muted);font-size:14px}
.pairing-error{
    margin-top:24px;padding:15px 18px;border-radius:14px;
    border:1px solid rgba(255,92,111,.32);
    background:rgba(255,92,111,.10);color:#ffc7cf;
}

.player-body{background:#000;overflow:hidden}
.player-root,.menu-viewport{
    position:fixed;inset:0;
    width:100vw;height:100vh;
    overflow:hidden;background:#000;
}
.player-status{
    position:absolute;z-index:50;inset:0;
    display:flex;align-items:center;justify-content:center;gap:18px;
    background:#080b12;color:#fff;
    transition:opacity .35s ease;
}
.player-status.is-hidden{opacity:0;pointer-events:none}
.player-status strong{display:block;font-size:22px}
.player-status span{display:block;color:#929db0;margin-top:4px}
.status-spinner{
    width:36px;height:36px;border-radius:50%;
    border:4px solid rgba(255,255,255,.12);
    border-top-color:#68c2ff;
    animation:spin .8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

.menu-layer{
    position:absolute;inset:0;
    overflow:hidden;
    background:#000;
    opacity:0;
    transform:translate3d(0,0,0);
    will-change:opacity,transform;
}
.menu-layer.is-active{opacity:1}
.menu-layer.transition-fade.enter{animation:menuFadeIn .75s ease both}
.menu-layer.transition-fade.exit{animation:menuFadeOut .75s ease both}
.menu-layer.transition-slide-left.enter{animation:menuSlideLeftIn .8s cubic-bezier(.2,.8,.2,1) both}
.menu-layer.transition-slide-left.exit{animation:menuSlideLeftOut .8s cubic-bezier(.2,.8,.2,1) both}
.menu-layer.transition-slide-up.enter{animation:menuSlideUpIn .8s cubic-bezier(.2,.8,.2,1) both}
.menu-layer.transition-slide-up.exit{animation:menuSlideUpOut .8s cubic-bezier(.2,.8,.2,1) both}
.menu-layer.transition-zoom.enter{animation:menuZoomIn .8s ease both}
.menu-layer.transition-zoom.exit{animation:menuZoomOut .8s ease both}
@keyframes menuFadeIn{from{opacity:0}to{opacity:1}}
@keyframes menuFadeOut{from{opacity:1}to{opacity:0}}
@keyframes menuSlideLeftIn{from{opacity:0;transform:translateX(7%)}to{opacity:1;transform:translateX(0)}}
@keyframes menuSlideLeftOut{from{opacity:1;transform:translateX(0)}to{opacity:0;transform:translateX(-7%)}}
@keyframes menuSlideUpIn{from{opacity:0;transform:translateY(7%)}to{opacity:1;transform:translateY(0)}}
@keyframes menuSlideUpOut{from{opacity:1;transform:translateY(0)}to{opacity:0;transform:translateY(-7%)}}
@keyframes menuZoomIn{from{opacity:0;transform:scale(.965)}to{opacity:1;transform:scale(1)}}
@keyframes menuZoomOut{from{opacity:1;transform:scale(1)}to{opacity:0;transform:scale(1.025)}}

.menu-stage{
    position:absolute;inset:0;
    overflow:hidden;
    display:block;
}
.menu-sign{
    position:absolute!important;
    left:50%!important;
    top:50%!important;
    transform-origin:center center!important;
    margin:0!important;
    max-width:none!important;
    max-height:none!important;
    box-shadow:none!important;
}
.menu-sign .resize-handle,
.menu-sign .slot-guide{display:none!important}
.menu-sign [contenteditable]{outline:none!important}
.player-corner-status{
    position:fixed;right:12px;bottom:8px;z-index:100;
    font-size:10px;letter-spacing:.08em;
    color:rgba(255,255,255,.22);
    pointer-events:none;
}
.empty-menu{
    position:absolute;inset:0;display:grid;place-items:center;
    background:#080b12;color:#fff;text-align:center;padding:30px;
}
.empty-menu strong{display:block;font-size:30px;margin-bottom:8px}
.empty-menu span{color:#95a1b4;font-size:16px}

@media(max-width:760px){
    .pairing-shell{padding:18px}
    .pairing-card{padding:26px;border-radius:22px}
    .pairing-content{grid-template-columns:1fr;gap:24px}
    .qr-panel{width:308px;max-width:100%;margin:auto}
    .qr-box{width:220px;height:220px}
    .qr-box img,.qr-box canvas{width:220px!important;height:220px!important}
    .detail-row{grid-template-columns:95px 1fr}
}