/* =========================================================
   DESIGN TOKENS
========================================================= */
:root,
[data-theme="dark"]{
  --bg-void:#05050b;
  --bg-panel:#0c0d18;
  --bg-panel-alt:#11121f;
  --line:#242640;
  --line-soft:#181a2b;

  --text-hi:#f4f5fb;
  --text:#c3c6da;
  --text-mute:#7d80a0;

  /* multi-hue accent palette (gaming HUD colors) */
  --violet:#a855f7;   --violet-glow:rgba(168,85,247,.5);
  --cyan:#22d3ee;      --cyan-glow:rgba(34,211,238,.45);
  --pink:#fb64b6;      --pink-glow:rgba(251,100,182,.45);
  --gold:#ffb545;      --gold-glow:rgba(255,181,69,.45);

  --glass:rgba(16,17,28,.6);
  --glass-border:rgba(255,255,255,.09);
  --shadow-soft:0 20px 55px rgba(0,0,0,.55);
  --header-bg:rgba(5,5,11,.65);

  --font-display:'Orbitron', sans-serif;
  --font-body:'Inter', sans-serif;
  --font-mono:'JetBrains Mono', monospace;
  --radius:14px;
  --ease:cubic-bezier(.22,.9,.32,1);
}

[data-theme="light"]{
  --bg-void:#f1f0fb;
  --bg-panel:#ffffff;
  --bg-panel-alt:#f6f5fd;
  --line:#e0defa;
  --line-soft:#e9e7fb;

  --text-hi:#15142a;
  --text:#3c3b56;
  --text-mute:#6c6b8c;

  --violet:#7c3aed; --violet-glow:rgba(124,58,237,.28);
  --cyan:#0891b2;    --cyan-glow:rgba(8,145,178,.22);
  --pink:#db2777;    --pink-glow:rgba(219,39,119,.24);
  --gold:#c9791a;    --gold-glow:rgba(201,121,26,.24);

  --glass:rgba(255,255,255,.66);
  --glass-border:rgba(40,20,90,.09);
  --shadow-soft:0 20px 55px rgba(60,40,120,.15);
  --header-bg:rgba(241,240,251,.75);
}

/* per-card hue helper — sets local --accent/--accent-glow */
.hue-violet{ --accent:var(--violet); --accent-glow:var(--violet-glow); }
.hue-cyan{ --accent:var(--cyan); --accent-glow:var(--cyan-glow); }
.hue-pink{ --accent:var(--pink); --accent-glow:var(--pink-glow); }
.hue-gold{ --accent:var(--gold); --accent-glow:var(--gold-glow); }

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.01ms !important; animation-iteration-count:1 !important; transition-duration:.01ms !important;}
}

body{
  margin:0;
  background:var(--bg-void);
  color:var(--text);
  font-family:var(--font-body);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  transition:background-color .5s var(--ease), color .5s var(--ease);
}

::selection{background:var(--violet); color:#fff;}
a{color:inherit; text-decoration:none;}
:focus-visible{outline:2px solid var(--cyan); outline-offset:3px;}
h1,h2,h3{font-family:var(--font-display); color:var(--text-hi); margin:0; letter-spacing:.01em;}
.accent{color:var(--violet); text-shadow:0 0 24px var(--violet-glow);}

body::before{
  content:""; position:fixed; inset:0; pointer-events:none; z-index:2000;
  background:repeating-linear-gradient(to bottom, rgba(255,255,255,0.012) 0px, rgba(255,255,255,0.012) 1px, transparent 1px, transparent 3px);
  mix-blend-mode:overlay;
}

/* =========================================================
   BOOT OVERLAY (kept simple)
========================================================= */
#boot-overlay{
  position:fixed; inset:0; z-index:5000; background:var(--bg-void);
  display:flex; align-items:center; justify-content:center;
  transition:opacity .5s var(--ease), visibility .5s var(--ease);
}
#boot-overlay.done{opacity:0; visibility:hidden;}
.boot-box{font-family:var(--font-mono); color:var(--violet); font-size:clamp(14px,2.2vw,18px); text-align:center;}
.cursor-blink{animation:blink 1s steps(1) infinite;}
@keyframes blink{50%{opacity:0;}}
.boot-bar{margin-top:16px; width:200px; height:2px; background:var(--line-soft); border-radius:2px; overflow:hidden;}
.boot-bar span{display:block; height:100%; width:0; background:linear-gradient(90deg,var(--violet),var(--cyan)); animation:bootbar 1s var(--ease) forwards;}
@keyframes bootbar{to{width:100%;}}

/* =========================================================
   HEADER / NAV
========================================================= */
.site-header{
  position:fixed; top:0; left:0; right:0; z-index:1000;
  background:var(--header-bg); backdrop-filter:blur(14px); -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-soft);
  transition:background-color .5s var(--ease), border-color .5s var(--ease);
}
.site-header::after{
  content:""; position:absolute; left:0; right:0; bottom:-1px; height:1px;
  background:linear-gradient(90deg, transparent, var(--violet-glow), var(--cyan-glow), transparent); opacity:.8;
}
.nav-wrap{max-width:1180px; margin:0 auto; display:flex; align-items:center; justify-content:space-between; padding:16px 24px;}
.brand{display:flex; align-items:center; gap:8px; font-family:var(--font-display); font-weight:700; font-size:19px; color:var(--text-hi);}
.brand-mark{color:var(--violet); text-shadow:0 0 14px var(--violet-glow);}
.main-nav{display:flex; gap:28px;}
.main-nav a{font-family:var(--font-mono); font-size:13px; color:var(--text-mute); display:flex; align-items:center; gap:6px; transition:color .2s var(--ease); position:relative;}
.main-nav a .idx{color:var(--violet); opacity:.6; font-size:11px;}
.main-nav a::after{content:""; position:absolute; left:16px; right:0; bottom:-4px; height:1px; background:var(--cyan); transform:scaleX(0); transform-origin:left; transition:transform .25s var(--ease);}
.main-nav a:hover{color:var(--text-hi);}
.main-nav a:hover::after{transform:scaleX(1);}
.nav-toggle{display:none; flex-direction:column; gap:5px; background:none; border:none; cursor:pointer; padding:8px;}
.nav-toggle span{width:22px; height:2px; background:var(--text-hi); transition:transform .25s var(--ease), opacity .25s var(--ease);}

/* =========================================================
   HERO
========================================================= */
.hero{
  position:relative; min-height:100svh;
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  text-align:center; padding:120px 24px 80px; overflow:hidden;
}
#hero-particles{position:absolute; inset:0; width:100%; height:100%; opacity:.6;}
.hero-grid{
  position:absolute; inset:0;
  background-image:linear-gradient(rgba(168,85,247,.06) 1px, transparent 1px), linear-gradient(90deg, rgba(34,211,238,.06) 1px, transparent 1px);
  background-size:44px 44px;
  mask-image:radial-gradient(ellipse 60% 50% at 50% 40%, black 10%, transparent 75%);
}
.hero-inner{position:relative; z-index:2; max-width:780px;}

/* ---- Avatar frame (decorative, animated) ---- */
.avatar-frame{
  position:relative; width:132px; height:132px; margin:0 auto 26px;
  display:flex; align-items:center; justify-content:center;
}
.avatar-img{
  width:104px; height:104px; border-radius:50%; object-fit:cover;
  box-shadow:0 0 30px var(--violet-glow), 0 0 0 2px rgba(255,255,255,.06);
  animation:avatarFloat 4.5s ease-in-out infinite;
}
@keyframes avatarFloat{0%,100%{transform:translateY(0);} 50%{transform:translateY(-8px);}}
.avatar-ring{
  position:absolute; inset:0; border-radius:50%;
  border:1.5px dashed var(--violet);
  opacity:.55;
}
.ring-1{animation:spin 14s linear infinite;}
.ring-2{inset:-14px; border-color:var(--cyan); border-style:solid; border-width:1px; opacity:.35; animation:spin 20s linear infinite reverse;}
@keyframes spin{from{transform:rotate(0deg);} to{transform:rotate(360deg);}}
.avatar-orbit-dot{
  position:absolute; width:7px; height:7px; border-radius:50%; background:var(--cyan);
  box-shadow:0 0 10px var(--cyan-glow); top:50%; left:50%;
  animation:orbit 6s linear infinite;
}
.dot-a{animation-delay:0s;}
.dot-b{background:var(--pink); box-shadow:0 0 10px var(--pink-glow); animation:orbit 6s linear infinite reverse; animation-delay:-3s;}
@keyframes orbit{
  from{transform:rotate(0deg) translateX(74px) rotate(0deg);}
  to{transform:rotate(360deg) translateX(74px) rotate(-360deg);}
}
.avatar-badge{
  position:absolute; bottom:-6px; left:50%; transform:translateX(-50%);
  font-family:var(--font-mono); font-size:9.5px; letter-spacing:.06em;
  background:var(--bg-panel); border:1px solid var(--cyan); color:var(--cyan);
  padding:3px 9px; border-radius:20px; box-shadow:0 0 12px var(--cyan-glow);
  white-space:nowrap;
}

.eyebrow{font-family:var(--font-mono); font-size:12px; letter-spacing:.12em; color:var(--cyan); display:inline-flex; align-items:center; gap:8px; margin:0 0 22px;}
.eyebrow .dot{width:7px; height:7px; border-radius:50%; background:var(--cyan); box-shadow:0 0 10px var(--cyan-glow); animation:pulse 1.8s ease-in-out infinite;}
@keyframes pulse{0%,100%{opacity:1;} 50%{opacity:.3;}}
.hero-title{font-size:clamp(32px,6vw,60px); font-weight:700; line-height:1.1; margin-bottom:20px;}
.hero-sub{font-size:clamp(15px,1.8vw,18px); color:var(--text-mute); max-width:560px; margin:0 auto 34px;}
.hero-cta{display:flex; gap:14px; justify-content:center; flex-wrap:wrap; margin-bottom:52px;}

.btn{font-family:var(--font-mono); font-size:13px; padding:14px 28px; border-radius:9px; border:1px solid transparent; cursor:pointer; display:inline-block; transition:transform .2s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);}
.btn:hover{transform:translateY(-3px);}
.btn-primary{background:linear-gradient(135deg,var(--violet),var(--pink)); color:#fff; font-weight:600; box-shadow:0 10px 28px var(--violet-glow);}
.btn-primary:hover{box-shadow:0 16px 40px var(--violet-glow);}
.btn-ghost{border-color:var(--line); color:var(--text); backdrop-filter:blur(6px);}
.btn-ghost:hover{border-color:var(--cyan); color:var(--cyan); box-shadow:0 10px 28px var(--cyan-glow);}

.hero-stats{display:grid; grid-template-columns:repeat(4,1fr); gap:14px; max-width:680px; margin:0 auto; padding:26px 18px; border-radius:var(--radius); background:var(--glass); border:1px solid var(--glass-border); backdrop-filter:blur(16px); -webkit-backdrop-filter:blur(16px); box-shadow:var(--shadow-soft);}
.stat{position:relative;}
.stat:not(:last-child)::after{content:""; position:absolute; right:-7px; top:6px; bottom:6px; width:1px; background:var(--line-soft);}
.stat-num{font-family:var(--font-display); font-size:clamp(22px,3vw,32px); font-weight:700; color:var(--violet); display:block; text-shadow:0 0 20px var(--violet-glow);}
.stat-label{font-size:11px; color:var(--text-mute); font-family:var(--font-mono);}

.scroll-cue{position:absolute; bottom:28px; left:50%; transform:translateX(-50%); font-family:var(--font-mono); font-size:11px; color:var(--text-mute); display:flex; flex-direction:column; align-items:center; gap:8px;}
.scroll-cue span{width:1px; height:26px; background:linear-gradient(var(--violet), transparent); animation:scrollcue 1.6s ease-in-out infinite;}
@keyframes scrollcue{0%{transform:scaleY(0); transform-origin:top;} 50%{transform:scaleY(1); transform-origin:top;} 51%{transform-origin:bottom;} 100%{transform:scaleY(0); transform-origin:bottom;}}

/* =========================================================
   SECTIONS (shared)
========================================================= */
.section{padding:110px 24px; position:relative; overflow:hidden;}
.section-glow{position:absolute; border-radius:50%; filter:blur(90px); opacity:.35; pointer-events:none; z-index:0;}
.glow-violet{background:radial-gradient(circle, var(--violet-glow), transparent 70%);}
.glow-cyan{background:radial-gradient(circle, var(--cyan-glow), transparent 70%);}
.glow-pink{background:radial-gradient(circle, var(--pink-glow), transparent 70%);}
.g1{width:380px; height:380px; top:-80px; left:-60px; animation:driftA 15s ease-in-out infinite;}
.g2{width:320px; height:320px; bottom:-70px; right:-40px; animation:driftB 17s ease-in-out infinite;}
@keyframes driftA{0%,100%{transform:translate(0,0);} 50%{transform:translate(40px,30px);}}
@keyframes driftB{0%,100%{transform:translate(0,0);} 50%{transform:translate(-30px,-35px);}}
.section-inner{position:relative; z-index:1;}
.section-alt{background:linear-gradient(180deg, var(--bg-panel), var(--bg-void));}
.section-inner{max-width:1180px; margin:0 auto;}
.section-inner.center{text-align:center;}
.section-eyebrow{font-family:var(--font-mono); font-size:12px; color:var(--accent, var(--violet)); letter-spacing:.08em; margin:0 0 10px;}
.section-title{font-size:clamp(26px,3.6vw,38px); margin-bottom:14px;}
.section-desc{color:var(--text-mute); max-width:620px; margin:0 0 52px;}
.section-inner.center .section-desc{margin-inline:auto;}
.reveal{opacity:0; transform:translateY(24px); transition:opacity .7s var(--ease), transform .7s var(--ease);}
.reveal.in{opacity:1; transform:none;}
.section-head-row{display:flex; align-items:flex-end; justify-content:space-between; gap:24px; flex-wrap:wrap; margin-bottom:52px;}
.section-head-row .section-title,.section-head-row .section-desc{margin-bottom:0;}
.section-head-row .section-desc{margin-top:14px;}

.theme-switch-panel{display:flex; flex-direction:column; align-items:flex-end; gap:8px; background:var(--glass); border:1px solid var(--glass-border); border-radius:var(--radius); padding:14px 18px; backdrop-filter:blur(12px); -webkit-backdrop-filter:blur(12px); box-shadow:var(--shadow-soft);}
.tsp-label{font-family:var(--font-mono); font-size:10.5px; color:var(--text-mute); letter-spacing:.1em;}
.theme-switch{display:flex; align-items:center; gap:10px; background:none; border:none; cursor:pointer; padding:0;}
.ts-icon{font-size:15px; color:var(--text-mute); transition:color .3s var(--ease), text-shadow .3s var(--ease);}
.ts-track{width:46px; height:24px; border-radius:20px; background:var(--bg-panel-alt); border:1px solid var(--line); position:relative;}
.ts-thumb{position:absolute; top:2px; left:2px; width:18px; height:18px; border-radius:50%; background:var(--violet); box-shadow:0 0 12px var(--violet-glow); transition:transform .35s var(--ease), background .35s var(--ease);}
[data-theme="light"] .ts-thumb{transform:translateX(22px); background:var(--cyan); box-shadow:0 0 12px var(--cyan-glow);}
:root:not([data-theme="light"]) .ts-moon{color:var(--violet); text-shadow:0 0 10px var(--violet-glow);}
[data-theme="light"] .ts-sun{color:var(--cyan); text-shadow:0 0 10px var(--cyan-glow);}

/* =========================================================
   HUD CARD FRAME — corner brackets, colorful glow (shared)
========================================================= */
.skill-card,.rack-node,.project-card{
  position:relative;
  background:var(--glass); border:1px solid var(--glass-border); border-radius:var(--radius);
  backdrop-filter:blur(12px); -webkit-backdrop-filter:blur(12px);
  transition:box-shadow .3s var(--ease), transform .3s var(--ease), border-color .3s var(--ease);
}
.skill-card:hover,.rack-node:hover,.project-card:hover{
  transform:translateY(-6px);
  box-shadow:0 20px 50px var(--accent-glow, rgba(0,0,0,.4));
  border-color:var(--accent, var(--line));
}
/* corner bracket pseudo elements */
.skill-card::before,.skill-card::after,
.rack-node::before,.rack-node::after,
.project-card::before,.project-card::after{
  content:""; position:absolute; width:16px; height:16px; pointer-events:none;
  border-color:var(--accent, var(--violet)); opacity:0; transition:opacity .3s var(--ease);
}
.skill-card::before,.rack-node::before,.project-card::before{top:-1px; left:-1px; border-top:2px solid; border-left:2px solid; border-top-left-radius:6px;}
.skill-card::after,.rack-node::after,.project-card::after{bottom:-1px; right:-1px; border-bottom:2px solid; border-right:2px solid; border-bottom-right-radius:6px;}
.skill-card:hover::before,.skill-card:hover::after,
.rack-node:hover::before,.rack-node:hover::after,
.project-card:hover::before,.project-card:hover::after{opacity:1;}

/* =========================================================
   SKILLS
========================================================= */
.skill-grid{display:grid; grid-template-columns:repeat(auto-fit, minmax(240px,1fr)); gap:18px;}
.skill-card{padding:28px 24px;}
.skill-icon{
  font-family:var(--font-mono); font-size:20px; color:var(--accent, var(--cyan));
  width:42px; height:42px; display:flex; align-items:center; justify-content:center;
  border:1px solid var(--line); border-radius:9px; margin-bottom:16px; background:var(--bg-panel-alt);
  box-shadow:0 0 0 0 transparent; transition:box-shadow .3s var(--ease), border-color .3s var(--ease);
}
.skill-card:hover .skill-icon{border-color:var(--accent); box-shadow:0 0 20px var(--accent-glow);}
.skill-card h3{font-size:18px; margin-bottom:8px;}
.skill-card p{font-size:13.5px; color:var(--text-mute); margin:0 0 18px;}
.skill-bar{height:5px; background:var(--line); border-radius:3px; overflow:hidden;}
.skill-bar span{display:block; height:100%; width:0; background:linear-gradient(90deg, var(--accent, var(--violet)), var(--accent, var(--cyan))); border-radius:3px; transition:width 1.1s var(--ease); box-shadow:0 0 10px var(--accent-glow);}
.skill-bar.in span{width:var(--val);}

/* =========================================================
   DASHBOARD / RACK
========================================================= */
.rack{display:grid; grid-template-columns:repeat(auto-fit, minmax(280px,1fr)); gap:20px;}
.rack-node{padding:24px; overflow:hidden;}
.rack-node header{display:flex; justify-content:space-between; align-items:center; margin-bottom:12px;}
.node-tag{font-family:var(--font-mono); font-size:11px; color:var(--text-mute); letter-spacing:.08em;}
.node-status{font-family:var(--font-mono); font-size:11px; display:flex; align-items:center; gap:6px;}
.node-status::before{content:""; width:6px; height:6px; border-radius:50%; display:inline-block;}
.node-status.online{color:var(--accent, var(--cyan));}
.node-status.online::before{background:var(--accent, var(--cyan)); box-shadow:0 0 8px var(--accent-glow); animation:pulse 1.8s ease-in-out infinite;}
.node-status.warn{color:var(--gold);}
.node-status.warn::before{background:var(--gold); box-shadow:0 0 8px var(--gold-glow);}
.rack-node h3{font-size:19px; margin-bottom:16px;}
.spec-list{margin:0; display:grid; gap:8px;}
.spec-list div{display:flex; justify-content:space-between; font-family:var(--font-mono); font-size:12.5px; border-bottom:1px dashed var(--line-soft); padding-bottom:6px;}
.spec-list dt{color:var(--text-mute);}
.spec-list dd{margin:0; color:var(--text-hi);}

/* ---- System core decorative filler panel ---- */
.core-panel{display:flex; flex-direction:column; align-items:center; text-align:center;}
.core-emblem{
  width:150px; height:150px; margin:6px auto 14px;
  animation:coreSpin 18s linear infinite, corePulse 3s ease-in-out infinite;
}
@keyframes coreSpin{from{transform:rotate(0deg);} to{transform:rotate(360deg);}}
@keyframes corePulse{0%,100%{filter:drop-shadow(0 0 6px var(--cyan-glow));} 50%{filter:drop-shadow(0 0 18px var(--cyan-glow));}}
.wave-row{display:flex; align-items:flex-end; justify-content:center; gap:5px; height:34px; margin-bottom:14px;}
.wave-row span{
  width:4px; border-radius:2px; background:linear-gradient(var(--cyan), var(--violet));
  height:20%; animation:wave 1.4s ease-in-out infinite;
  box-shadow:0 0 8px var(--cyan-glow);
}
.wave-row span:nth-child(1){animation-delay:.0s;} .wave-row span:nth-child(2){animation-delay:.1s;}
.wave-row span:nth-child(3){animation-delay:.2s;} .wave-row span:nth-child(4){animation-delay:.3s;}
.wave-row span:nth-child(5){animation-delay:.4s;} .wave-row span:nth-child(6){animation-delay:.5s;}
.wave-row span:nth-child(7){animation-delay:.6s;} .wave-row span:nth-child(8){animation-delay:.7s;}
@keyframes wave{0%,100%{height:20%;} 50%{height:100%;}}
.core-caption{font-family:var(--font-mono); font-size:11.5px; color:var(--text-mute); margin:0;}

/* =========================================================
   TIMELINE
========================================================= */
.timeline{list-style:none; margin:0; padding:0; position:relative;}
.timeline::before{content:""; position:absolute; left:9px; top:6px; bottom:6px; width:1px; background:linear-gradient(var(--pink), var(--line-soft));}
.timeline li{position:relative; padding-left:42px; margin-bottom:40px;}
.timeline li:last-child{margin-bottom:0;}
.tl-dot{position:absolute; left:0; top:4px; width:19px; height:19px; border-radius:50%; background:var(--bg-panel); border:2px solid var(--pink); box-shadow:0 0 0 4px var(--bg-void), 0 0 16px var(--pink-glow);}
.tl-tag{font-family:var(--font-mono); font-size:11px; color:var(--pink); letter-spacing:.06em;}
.tl-content h3{font-size:19px; margin:6px 0 8px;}
.tl-content p{margin:0; color:var(--text-mute); font-size:14px; max-width:560px;}

/* =========================================================
   CONNECT
========================================================= */
.connect-bot{
  width:88px; height:88px; margin:0 auto 20px; display:block;
  animation:avatarFloat 4s ease-in-out infinite;
  filter:drop-shadow(0 0 16px var(--pink-glow));
}
.connect-row{display:flex; gap:14px; flex-wrap:wrap; justify-content:center;}
.connect-link{display:flex; align-items:center; gap:10px; padding:13px 22px; border:1px solid var(--glass-border); border-radius:10px; background:var(--glass); backdrop-filter:blur(10px); -webkit-backdrop-filter:blur(10px); font-family:var(--font-mono); font-size:13px; color:var(--text); transition:border-color .25s var(--ease), color .25s var(--ease), transform .25s var(--ease), box-shadow .25s var(--ease);}
.connect-link:hover{border-color:var(--cyan); color:var(--cyan); transform:translateY(-3px); box-shadow:0 12px 30px var(--cyan-glow);}
.c-icon{color:var(--violet);}

/* =========================================================
   FOOTER
========================================================= */
.site-footer{text-align:center; padding:34px 24px 120px; font-family:var(--font-mono); font-size:12px; color:var(--text-mute); border-top:1px solid var(--line-soft);}

/* =========================================================
   AUDIO HUD WIDGET
========================================================= */
.audio-hud{position:fixed; right:20px; bottom:20px; z-index:900; font-family:var(--font-mono); display:flex; flex-direction:column; align-items:flex-end; gap:10px;}
.audio-toggle{width:54px; height:54px; border-radius:50%; background:var(--glass); border:1px solid var(--glass-border); backdrop-filter:blur(12px); -webkit-backdrop-filter:blur(12px); display:flex; align-items:center; justify-content:center; cursor:pointer; box-shadow:var(--shadow-soft); transition:border-color .25s var(--ease), box-shadow .25s var(--ease);}
.audio-toggle:hover{border-color:var(--violet); box-shadow:0 10px 30px var(--violet-glow);}
.audio-toggle[aria-pressed="true"]{border-color:var(--violet); box-shadow:0 0 0 1px var(--violet-glow), 0 10px 30px var(--violet-glow);}
.eq{display:flex; align-items:flex-end; gap:3px; height:18px;}
.eq i{width:3px; background:var(--violet); border-radius:1px; display:block; height:30%; opacity:.5; transition:opacity .2s;}
.audio-toggle[aria-pressed="true"] .eq i{animation:eqbounce 1s ease-in-out infinite; opacity:1;}
.eq i:nth-child(1){animation-delay:0s;} .eq i:nth-child(2){animation-delay:.15s;} .eq i:nth-child(3){animation-delay:.3s;} .eq i:nth-child(4){animation-delay:.45s;}
@keyframes eqbounce{0%,100%{height:20%;} 50%{height:100%;}}
.audio-panel{width:224px; background:var(--glass); border:1px solid var(--glass-border); border-radius:12px; backdrop-filter:blur(16px); -webkit-backdrop-filter:blur(16px); padding:14px 16px; box-shadow:var(--shadow-soft); opacity:0; transform:translateY(8px) scale(.98); pointer-events:none; transition:opacity .25s var(--ease), transform .25s var(--ease);}
.audio-hud.open .audio-panel{opacity:1; transform:none; pointer-events:auto;}
.audio-row{display:flex; align-items:center; gap:10px; margin-bottom:10px;}
.audio-row:last-child{margin-bottom:0;}
.audio-title{font-size:11px; color:var(--text-mute); letter-spacing:.08em;}
.audio-state{font-size:11px; color:var(--cyan); margin-left:auto;}
.audio-play{width:30px; height:30px; border-radius:50%; border:1px solid var(--line); background:var(--bg-panel-alt); color:var(--text-hi); cursor:pointer; font-size:11px; display:flex; align-items:center; justify-content:center; flex-shrink:0;}
.audio-play:hover{border-color:var(--violet);}
#audio-volume{flex:1; accent-color:var(--violet); height:3px;}
.audio-vol-val{font-size:11px; color:var(--text-mute); width:32px; text-align:right;}

/* =========================================================
   RESPONSIVE
========================================================= */
@media (max-width:860px){
  .main-nav{position:fixed; top:64px; left:0; right:0; bottom:0; background:var(--bg-void); flex-direction:column; gap:0; padding:20px 24px; transform:translateY(-110%); transition:transform .3s var(--ease);}
  .main-nav.open{transform:translateY(0);}
  .main-nav a{padding:16px 0; border-bottom:1px solid var(--line-soft); font-size:15px;}
  .nav-toggle{display:flex;}
  .hero-stats{grid-template-columns:repeat(2,1fr);}
  .audio-hud{right:14px; bottom:14px;}
  .section-head-row{flex-direction:column; align-items:flex-start;}
  .theme-switch-panel{align-items:flex-start; align-self:stretch;}
}