:root{
  --bg: #f7f4ee;
  --bg-panel: #ffffff;
  --bg-panel-2: #efe9de;
  --line: #ddd3c1;
  --paper: #211c16;
  --dim: #6b6255;
  --amber: #d9822b;
  --amber-dim: #b86b1f;
  --slate: #3d7ea6;
  --slate-dim: #2c5c7a;
  --footnote: #b7ac98;
  --btn-text: #100e0c;
  --radius: 10px;
  --sidebar-w: 250px;
  color-scheme: light;
}

html[data-theme="dark"]{
  --bg: #100e0c;
  --bg-panel: #1a1613;
  --bg-panel-2: #221c17;
  --line: #34291f;
  --paper: #f4ece0;
  --dim: #a89985;
  --amber: #ffb84d;
  --amber-dim: #d99a35;
  --slate: #7fa8c9;
  --slate-dim: #5c85a8;
  --footnote: #54493c;
  --btn-text: #100e0c;
  color-scheme: dark;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--paper);
  font-family:'Manrope',sans-serif;
  line-height:1.65;
  transition: background .2s, color .2s;
}

body::selection{ background:rgba(217,130,43,0.25); }

body, a, button, input, textarea{ -webkit-tap-highlight-color: transparent; }

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *{animation:none !important; transition:none !important;}
}

h1,h2,h3{font-family:'Bebas Neue',sans-serif; font-weight:400; letter-spacing:0.5px; margin:0;}
.mono{font-family:'IBM Plex Mono',monospace;}
a{color:var(--amber);}
@keyframes blink{0%,100%{opacity:1;} 50%{opacity:0.25;}}
@keyframes bootBar{0%{transform:scaleX(0); opacity:1;} 70%{transform:scaleX(1); opacity:1;} 100%{transform:scaleX(1); opacity:0;}}
@keyframes panelIn{from{opacity:0; transform:translateY(14px);} to{opacity:1; transform:translateY(0);}}
@keyframes chipDrift{0%,100%{transform:translateY(0);} 50%{transform:translateY(-2px);}}

.boot-loader{
  position:fixed; inset:0 auto auto 0; width:100%; height:3px; z-index:9999;
  pointer-events:none; overflow:hidden; background:transparent;
}
.boot-loader span{
  display:block; width:100%; height:100%; transform-origin:left center;
  background:linear-gradient(90deg, var(--amber), var(--slate)); animation:bootBar .85s ease forwards;
}

.monitor,
.panel,
.card,
.journey-item,
.testimonial-card,
.tech-column,
.learning-grid .chip,
.hero-social .social-btn{
  animation:panelIn .7s ease both;
}

.panel:nth-of-type(1), .monitor{ animation-delay:.03s; }
.panel:nth-of-type(2){ animation-delay:.08s; }
.panel:nth-of-type(3){ animation-delay:.12s; }
.panel:nth-of-type(4){ animation-delay:.16s; }
.panel:nth-of-type(5){ animation-delay:.2s; }
.panel:nth-of-type(6){ animation-delay:.24s; }
.panel:nth-of-type(7){ animation-delay:.28s; }
.panel:nth-of-type(8){ animation-delay:.32s; }

.btn{
  font-family:'IBM Plex Mono',monospace; font-size:12.5px;
  padding:12px 18px; border-radius:6px; text-decoration:none;
  border:1px solid var(--line); transition: all .18s;
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  text-transform:uppercase; letter-spacing:0.3px;
}
.btn-amber{background:var(--amber); color:var(--btn-text); border-color:var(--amber); font-weight:600;}
.btn-amber:hover{background:var(--amber-dim); border-color:var(--amber-dim);}
.btn-slate{background:var(--slate); color:var(--btn-text); border-color:var(--slate); font-weight:600;}
.btn-slate:hover{background:var(--slate-dim); border-color:var(--slate-dim);}
.btn-outline{color:var(--paper); border-color:var(--line);}
.btn-outline:hover{border-color:var(--paper);}
.btn.full{width:100%;}
.btn:hover,
.social-btn:hover,
.copy-btn:hover,
.back-to-top:hover,
.theme-toggle:hover,
.chip:hover,
.stack span:hover,
.tech-chips span:hover,
.card:hover,
.testimonial-card:hover,
.journey-card:hover,
.tool-pill:hover{
  transform:translateY(-2px);
}

a:focus-visible,
button:focus-visible{
  outline:2px solid var(--amber);
  outline-offset:3px;
}

.app-shell{ display:grid; grid-template-columns: var(--sidebar-w) 1fr; min-height:100vh; }

.sidebar{
  position:sticky; top:0; height:100vh; overflow-y:auto;
  background:var(--bg-panel); border-right:1px solid var(--line);
  display:flex; flex-direction:column; justify-content:space-between;
  padding:22px 18px;
}

.logo{font-family:'Bebas Neue',sans-serif; font-size:24px; letter-spacing:1px;}
.logo span{color:var(--amber);}
.tc-readout{ font-size:11.5px; color:var(--dim); margin-top:10px; }
.tc-readout .rec-dot{width:7px;height:7px;border-radius:50%;background:var(--amber); display:inline-block; margin-right:6px; animation:blink 1.4s infinite;}
#tc{color:var(--paper);}

.side-nav{ display:flex; flex-direction:column; gap:4px; margin:30px 0; }
.side-nav a{
  display:flex; align-items:center; gap:10px;
  text-decoration:none; color:var(--dim); font-size:13.5px;
  padding:9px 10px; border-radius:6px; border-left:2px solid transparent;
  transition: all .15s;
}
.side-nav a .idx{ font-family:'IBM Plex Mono',monospace; font-size:10.5px; color:var(--dim); }
.side-nav a:hover{ color:var(--paper); background:rgba(255,184,77,0.06); }
.side-nav a.active{ color:var(--paper); background:rgba(255,184,77,0.1); border-left-color:var(--amber); }
.side-nav a.active .idx{ color:var(--amber); }

.sidebar-bottom{ display:flex; flex-direction:column; gap:10px; }
.status{ font-size:10.5px; color:var(--dim); }
.status .dot{ color:var(--slate); }

.theme-toggle{
  display:flex; align-items:center; justify-content:center; gap:8px;
  font-family:'IBM Plex Mono',monospace; font-size:11.5px;
  padding:10px 14px; border-radius:6px; border:1px solid var(--line);
  background:var(--bg-panel-2); color:var(--paper); cursor:pointer;
  text-transform:uppercase; letter-spacing:0.3px; width:100%;
}
.theme-toggle:hover{ border-color:var(--amber); }
.theme-toggle .icon{ font-size:13px; }

.stage{ padding:26px; display:flex; flex-direction:column; gap:26px; }

.window-chrome{
  display:flex; align-items:center; justify-content:space-between;
  padding:11px 16px; border-bottom:1px solid var(--line);
  background:var(--bg-panel-2);
}
.window-chrome .dots{display:flex; gap:6px;}
.window-chrome .dots span{width:9px;height:9px;border-radius:50%;}
.window-chrome .dots span:nth-child(1){background:var(--amber);}
.window-chrome .dots span:nth-child(2){background:var(--slate);}
.window-chrome .dots span:nth-child(3){background:var(--dim);}
.window-chrome .filename{font-size:11px; color:var(--dim); letter-spacing:0.3px;}

.panel{
  background:var(--bg-panel); border:1px solid var(--line); border-radius:var(--radius);
  overflow:hidden;
}
.panel-body{ padding:30px 28px; }

.panel-title{display:flex; align-items:baseline; gap:12px; margin-bottom:24px;}
.panel-title .idx{font-family:'IBM Plex Mono',monospace; font-size:13px; color:var(--amber);}
.panel-title h2{font-size:30px;}

.monitor{ background:var(--bg-panel); border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; }
.monitor-body{ padding:56px 32px 40px; }
.hero-grid{ display:grid; grid-template-columns:1fr 240px; gap:44px; align-items:center; }
.rec-line{
  display:inline-flex; align-items:center; gap:8px;
  font-family:'IBM Plex Mono',monospace; font-size:12px; color:var(--dim);
  border:1px solid var(--line); padding:6px 12px; border-radius:100px; margin-bottom:26px;
}
.rec-line .rec-dot{width:7px;height:7px;border-radius:50%;background:var(--amber); animation:blink 1.4s infinite;}
h1.name{ font-size:clamp(46px, 8vw, 92px); line-height:0.92; margin:0 0 18px; letter-spacing:1px; }
h1.name .hl{color:var(--amber);}
.hero-role{ font-size:16px; color:var(--dim); max-width:560px; margin:0 0 28px; }
.hero-role b{color:var(--paper); font-weight:700;}
.hero-cta{display:flex; gap:14px; flex-wrap:wrap;}
.hero-social{ display:flex; flex-wrap:wrap; gap:10px; margin-top:16px; }
.social-btn{
  display:inline-flex; align-items:center; gap:8px; text-decoration:none;
  padding:10px 14px; border-radius:6px; border:1px solid var(--line);
  background:var(--bg-panel-2); color:var(--paper); font-family:'IBM Plex Mono',monospace;
  font-size:11.5px; text-transform:uppercase; letter-spacing:0.3px; transition:all .18s;
}
.social-btn svg{ width:16px; height:16px; fill:currentColor; flex-shrink:0; }
.social-btn:hover{ border-color:var(--amber); color:var(--amber); }
.scrub-bar{ height:4px; background:var(--bg-panel-2); position:relative; }
.scrub-fill{ height:100%; width:0%; background:linear-gradient(90deg, var(--amber), var(--slate)); transition:width .05s linear; }

.photo-frame{
  position:relative; width:100%; aspect-ratio:3/4;
  border:1px solid var(--line); border-radius:8px; overflow:hidden;
  background:var(--bg-panel-2);
}
.photo-frame img{
  position:absolute; inset:0; width:100%; height:100%;
  object-fit:cover; display:block; z-index:2;
}
.photo-fallback{
  position:absolute; inset:0; z-index:1;
  display:flex; align-items:center; justify-content:center;
  font-family:'Bebas Neue',sans-serif; font-size:44px; letter-spacing:2px;
  color:var(--line);
}
.frame-corner{ position:absolute; width:18px; height:18px; z-index:3; border-color:var(--amber); }
.frame-corner.tl{ top:8px; left:8px; border-top:2px solid; border-left:2px solid; }
.frame-corner.tr{ top:8px; right:8px; border-top:2px solid; border-right:2px solid; }
.frame-corner.bl{ bottom:8px; left:8px; border-bottom:2px solid; border-left:2px solid; }
.frame-corner.br{ bottom:8px; right:8px; border-bottom:2px solid; border-right:2px solid; }
.frame-tag{
  position:absolute; left:8px; bottom:8px; z-index:3;
  background:var(--amber); color:var(--btn-text); font-size:10px; font-weight:600;
  padding:3px 8px; border-radius:3px; letter-spacing:0.4px;
}

.about-body{max-width:680px; color:var(--dim); font-size:15.5px;}
.about-body p{margin:0 0 14px;}
.compact-copy{ max-width:560px; }
.lang-strip{display:flex; flex-wrap:wrap; gap:10px; margin-top:24px;}
.chip{
  font-family:'IBM Plex Mono',monospace; font-size:12px;
  padding:6px 12px; border:1px solid var(--line); border-radius:100px;
  color:var(--dim); background:var(--bg-panel-2);
}
.chip b{color:var(--amber);}
.chip-soft{ color:var(--paper); animation:chipDrift 5.5s ease-in-out infinite; }
.chip-soft:nth-child(2n){ animation-delay:.6s; }
.chip-soft:nth-child(3n){ animation-delay:1.2s; }

.timeline-wrap{ overflow-x:auto; padding-bottom:6px; }
.timeline-inner{ min-width:640px; }
.ruler{ position:relative; height:26px; border-bottom:1px solid var(--line); margin-bottom:6px; }
.ruler .tick{ position:absolute; top:0; bottom:0; display:flex; align-items:flex-end; font-family:'IBM Plex Mono',monospace; font-size:11px; color:var(--dim); }
.ruler .tick::before{ content:''; position:absolute; left:0; bottom:0; width:1px; height:8px; background:var(--line); }
.track-row{ position:relative; height:64px; margin-bottom:8px; border-radius:6px; background:var(--bg-panel-2); }
.track-row:last-child{margin-bottom:0;}
.track-label{ position:absolute; left:-34px; top:50%; transform:translateY(-50%); font-family:'IBM Plex Mono',monospace; font-size:10.5px; color:var(--dim); }
.clip{
  position:absolute; top:6px; bottom:6px; border-radius:6px;
  padding:8px 12px; overflow:hidden; border:1px solid rgba(0,0,0,0.2);
}
.clip.amber{ background:linear-gradient(180deg, var(--amber-dim), var(--amber)); color:var(--btn-text); }
.clip.slate{ background:linear-gradient(180deg, var(--slate-dim), var(--slate)); color:var(--btn-text); }
.clip h4{ font-family:'Manrope',sans-serif; font-weight:700; font-size:13px; margin:0 0 2px; white-space:nowrap; }
.clip p{ font-family:'IBM Plex Mono',monospace; font-size:10px; margin:0; white-space:nowrap; opacity:0.85; }
.badge-row{ display:flex; flex-wrap:wrap; gap:6px; margin-top:9px; }
.badge-row span,
.card-meta span,
.availability-list span{
  font-family:'IBM Plex Mono',monospace; font-size:9.5px; text-transform:uppercase; letter-spacing:0.35px;
  padding:3px 7px; border-radius:999px; border:1px solid rgba(0,0,0,0.12);
  background:rgba(255,255,255,0.18); color:inherit;
}
.track-legend{ margin-left:34px; margin-top:14px; }
.legend-rows{ display:flex; flex-direction:column; gap:10px; }
.legend-row{ font-size:13px; color:var(--dim); display:flex; gap:10px; }
.legend-row .swatch{ width:10px; height:10px; border-radius:3px; flex-shrink:0; margin-top:4px; }
.legend-row .swatch.amber{background:var(--amber);}
.legend-row .swatch.slate{background:var(--slate);}
.legend-row a{color:var(--dim); text-decoration:underline; text-decoration-color:var(--line);}
.legend-row b{color:var(--paper);}

.bin-hint{ font-family:'IBM Plex Mono',monospace; font-size:11px; color:var(--dim); margin-bottom:16px; }
.bin-row{ display:flex; gap:16px; overflow-x:auto; scroll-snap-type:x proximity; padding-bottom:10px; margin:0 -4px; padding-left:4px; padding-right:4px;}
.bin-row::-webkit-scrollbar{ height:6px; }
.bin-row::-webkit-scrollbar-thumb{ background:var(--line); border-radius:100px; }
.card{
  flex:0 0 280px; scroll-snap-align:start;
  background:var(--bg-panel-2); border:1px solid var(--line); border-radius:var(--radius);
  padding:22px; display:flex; flex-direction:column; gap:12px;
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.card-tag{ font-family:'IBM Plex Mono',monospace; font-size:10.5px; letter-spacing:0.5px; color:var(--slate); text-transform:uppercase; }
.card h3{ font-size:22px; letter-spacing:0.4px; }
.card p{ margin:0; font-size:13.5px; color:var(--dim); flex:1; }
.card:hover{ border-color:rgba(217,130,43,0.5); box-shadow:0 14px 30px rgba(0,0,0,0.08); }
.card-meta{ display:flex; flex-wrap:wrap; gap:6px; }
.stack{display:flex; flex-wrap:wrap; gap:6px;}
.stack span{ font-family:'IBM Plex Mono',monospace; font-size:10.5px; background:var(--bg-panel); border:1px solid var(--line); padding:3px 8px; border-radius:4px; color:var(--dim); }
.card-status{font-family:'IBM Plex Mono',monospace; font-size:11px; color:var(--amber-dim);}

.tech-stack{ display:grid; grid-template-columns:repeat(2, minmax(0, 1fr)); gap:18px; margin-top:28px; }
.tech-column{
  background:var(--bg-panel-2); border:1px solid var(--line); border-radius:var(--radius);
  padding:18px 18px 16px;
}
.tech-column h4{ font-family:'IBM Plex Mono',monospace; font-size:11px; letter-spacing:0.5px; color:var(--dim); text-transform:uppercase; margin:0 0 12px; }
.tech-chips{ display:flex; flex-wrap:wrap; gap:8px; }
.tech-chips span{
  font-family:'IBM Plex Mono',monospace; font-size:11px; color:var(--paper);
  background:var(--bg-panel); border:1px solid var(--line); padding:6px 10px; border-radius:999px;
  transition:transform .18s ease, border-color .18s ease;
  animation:chipDrift 6.5s ease-in-out infinite;
}
.tech-chips span:nth-child(2n){ animation-delay:.55s; }
.tech-chips span:nth-child(3n){ animation-delay:1.1s; }

.journey-list{
  position:relative; display:grid; gap:14px; padding-left:22px;
}
.journey-list::before{
  content:''; position:absolute; left:10px; top:6px; bottom:6px; width:2px; background:linear-gradient(180deg, var(--amber), var(--slate));
}
.journey-item{
  position:relative; display:grid; grid-template-columns:72px 1fr; gap:16px; align-items:stretch;
  animation-delay:.05s;
}
.journey-item:nth-child(2){ animation-delay:.1s; }
.journey-item:nth-child(3){ animation-delay:.15s; }
.journey-item:nth-child(4){ animation-delay:.2s; }
.journey-item:nth-child(5){ animation-delay:.25s; }
.journey-item:nth-child(6){ animation-delay:.3s; }
.journey-item::before{
  content:''; position:absolute; left:-16px; top:22px; width:10px; height:10px; border-radius:50%;
  background:var(--amber); box-shadow:0 0 0 5px rgba(217,130,43,0.12);
}
.journey-year{
  font-family:'IBM Plex Mono',monospace; font-size:12px; color:var(--amber); align-self:start; padding-top:14px;
}
.journey-card{
  background:var(--bg-panel-2); border:1px solid var(--line); border-radius:var(--radius);
  padding:16px 18px; transition:transform .18s ease, border-color .18s ease;
}
.journey-card h3{ font-size:22px; margin-bottom:4px; }
.journey-card p{ margin:0; color:var(--dim); font-size:13.5px; }

.learning-grid{ display:flex; flex-wrap:wrap; gap:10px; }

.testimonial-grid{ display:grid; grid-template-columns:repeat(3, minmax(0, 1fr)); gap:14px; }
.testimonial-card{
  background:var(--bg-panel-2); border:1px solid var(--line); border-radius:var(--radius);
  padding:18px; min-height:132px; transition:transform .18s ease, border-color .18s ease;
}
.testimonial-card:hover{ border-color:rgba(61,126,166,0.45); }
.quote-mark{ font-family:'Bebas Neue',sans-serif; font-size:34px; line-height:1; color:var(--amber); display:block; margin-bottom:12px; }
.testimonial-card p{ margin:0; color:var(--dim); font-size:14px; }

.video-frame{ border-radius:8px; overflow:hidden; border:1px solid var(--line); background:#000; }
.video-frame video{ width:100%; display:block; aspect-ratio:16/9; object-fit:cover; background:#000; }
.video-caption{ display:flex; justify-content:space-between; align-items:center; padding:12px 2px 0; font-family:'IBM Plex Mono',monospace; font-size:12px; color:var(--dim); }
.video-caption .live{display:flex; align-items:center; gap:6px;}
.live-dot{width:8px;height:8px;border-radius:50%;background:var(--amber); animation:blink 1.4s infinite;}
.create-intro{max-width:640px; color:var(--dim); font-size:15.5px; margin-bottom:24px;}
.tools-row{display:flex; flex-wrap:wrap; gap:12px; margin-top:24px;}
.tool-pill{
  display:flex; align-items:center; gap:10px; padding:11px 15px;
  background:var(--bg-panel-2); border:1px solid var(--line); border-radius:8px; font-size:13px;
}
.tool-pill .dot{width:8px;height:8px;border-radius:50%;background:var(--slate);}

.mixer{ display:flex; gap:22px; flex-wrap:wrap; }
.channel{ display:flex; flex-direction:column; align-items:center; gap:10px; width:64px; }
.channel .fader-track{ width:14px; height:160px; background:var(--bg-panel-2); border:1px solid var(--line); border-radius:100px; position:relative; overflow:hidden; }
.channel .fader-fill{ position:absolute; bottom:0; left:0; width:100%; border-radius:100px; }
.channel .fader-fill.amber{ background:linear-gradient(180deg, var(--amber), var(--amber-dim)); }
.channel .fader-fill.slate{ background:linear-gradient(180deg, var(--slate), var(--slate-dim)); }
.channel .cap{ font-family:'IBM Plex Mono',monospace; font-size:10px; color:var(--dim); text-align:center; line-height:1.3; }
.channel .val{ font-family:'IBM Plex Mono',monospace; font-size:11px; color:var(--paper); }
.mixer-groups{ display:flex; gap:40px; flex-wrap:wrap; }
.mixer-group h4{ font-family:'IBM Plex Mono',monospace; font-size:11px; letter-spacing:0.5px; color:var(--dim); text-transform:uppercase; margin:0 0 16px; }

.queue{ display:flex; flex-direction:column; gap:1px; background:var(--line); border:1px solid var(--line); border-radius:8px; overflow:hidden; }
.queue-row{ display:grid; grid-template-columns:1fr 90px 90px; gap:14px; align-items:center; background:var(--bg-panel-2); padding:14px 18px; }
.queue-row.head{ background:var(--bg-panel); font-family:'IBM Plex Mono',monospace; font-size:10.5px; color:var(--dim); text-transform:uppercase; letter-spacing:0.4px; }
.queue-row .job{ font-size:14px; }
.queue-row .job .org{ display:block; font-family:'IBM Plex Mono',monospace; font-size:10.5px; color:var(--dim); margin-top:2px; }
.queue-row .status{ font-family:'IBM Plex Mono',monospace; font-size:11px; color:var(--amber); display:flex; align-items:center; gap:6px; }
.queue-row .status::before{ content:'✓'; }
.queue-row .col-year{ font-family:'IBM Plex Mono',monospace; font-size:11.5px; color:var(--dim); }
.queue-row .loc{ font-family:'IBM Plex Mono',monospace; font-size:12px; color:var(--dim); display:flex; align-items:center; gap:6px; }

.export-dialog{ max-width:520px; margin:0 auto; text-align:left; }
.export-field{ display:flex; justify-content:space-between; padding:12px 0; border-bottom:1px solid var(--line); font-size:13.5px; }
.export-field:last-of-type{ border-bottom:none; }
.export-field .k{ color:var(--dim); font-family:'IBM Plex Mono',monospace; font-size:11.5px; text-transform:uppercase; letter-spacing:0.3px; }
.export-field .v a{ color:var(--paper); text-decoration:none; }
.export-field .v a:hover{ color:var(--amber); }
.export-field .v{ display:flex; align-items:center; gap:10px; justify-content:flex-end; flex-wrap:wrap; }
.export-field.copyable .v a{ text-decoration:underline; text-decoration-color:transparent; }
.export-field.copyable .v a:hover{ text-decoration-color:var(--amber); }
.copy-btn{
  position:relative; border:1px solid var(--line); background:var(--bg-panel-2); color:var(--paper);
  border-radius:999px; padding:6px 10px; font-family:'IBM Plex Mono',monospace; font-size:10.5px;
  text-transform:uppercase; letter-spacing:0.35px; cursor:pointer; transition:all .18s ease;
}
.copy-btn:hover{ border-color:var(--amber); color:var(--amber); }
.copy-tip{
  position:absolute; right:0; top:-30px; padding:4px 8px; border-radius:999px;
  background:var(--paper); color:var(--bg-panel); font-size:10px; opacity:0; transform:translateY(4px) scale(.96);
  pointer-events:none; transition:all .16s ease;
}
.copy-btn.is-copied .copy-tip{ opacity:1; transform:translateY(0) scale(1); }
.availability-list{ display:flex; flex-wrap:wrap; gap:6px; justify-content:flex-end; }
.export-actions{ display:flex; gap:12px; margin-top:24px; flex-wrap:wrap; }
.foot-note{ text-align:center; margin-top:30px; font-family:'IBM Plex Mono',monospace; font-size:11px; color:var(--footnote); }

.back-to-top{
  position:fixed; right:20px; bottom:20px; z-index:999;
  border:1px solid var(--line); background:var(--bg-panel); color:var(--paper);
  border-radius:999px; padding:11px 14px; font-family:'IBM Plex Mono',monospace; font-size:11px;
  text-transform:uppercase; letter-spacing:0.35px; box-shadow:0 12px 30px rgba(0,0,0,0.12);
  opacity:0; transform:translateY(12px); pointer-events:none; transition:all .18s ease;
}
.back-to-top.visible{ opacity:1; transform:translateY(0); pointer-events:auto; }
.back-to-top span{ display:inline-flex; align-items:center; gap:6px; }
.back-to-top span::before{ content:'↑'; font-size:12px; }

.panel,
.monitor{ scroll-margin-top:20px; }

html.js-ready .boot-loader{ opacity:0; transition:opacity .2s ease .85s; }