:root{
  --bg:#080a12;
  --bg2:#0e1120;
  --panel:#11152a;
  --panel2:#161b33;
  --line:#232a4d;
  --ink:#e8ecff;
  --muted:#7d86b8;
  --accent:#5b8cff;
  --accent2:#00e0c6;
  --danger:#ff5d73;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:'Bricolage Grotesque',system-ui,sans-serif;
  min-height:100vh;
  overflow-x:hidden;
}
.app-shell{position:relative;min-height:100vh;display:flex;flex-direction:column}

/* ambient background */
.ambient{
  position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(900px 500px at 15% -5%, rgba(91,140,255,.16), transparent 60%),
    radial-gradient(800px 600px at 100% 20%, rgba(0,224,198,.10), transparent 55%),
    linear-gradient(180deg,var(--bg),var(--bg2));
}
.ambient::after{
  content:"";position:absolute;inset:0;opacity:.05;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:44px 44px;
  mask:radial-gradient(circle at 50% 0%,#000,transparent 75%);
}

/* header */
.oai-header{
  position:relative;z-index:2;
  display:flex;align-items:center;gap:1.2rem;flex-wrap:wrap;
  padding:1.1rem clamp(1rem,4vw,2.4rem);
  border-bottom:1px solid var(--line);
  background:linear-gradient(90deg,rgba(17,21,42,.85),rgba(14,17,32,.6));
  backdrop-filter:blur(8px);
}
.logo{display:flex;align-items:center;gap:.6rem}
.logo-mark{
  font-size:1.6rem;color:var(--accent2);
  animation:spin 8s linear infinite;text-shadow:0 0 16px var(--accent2);
}
@keyframes spin{to{transform:rotate(360deg)}}
.logo h1{font-size:1.5rem;font-weight:800;margin:0;letter-spacing:-.02em}
.logo-ai{color:var(--accent);text-shadow:0 0 20px rgba(91,140,255,.5)}
.tagline{color:var(--muted);font-size:.86rem;margin:0;flex:1}
.settings-btn{
  background:var(--panel2);border:1px solid var(--line);color:var(--ink);
  width:38px;height:38px;border-radius:10px;font-size:1.1rem;cursor:pointer;transition:.2s;
}
.settings-btn:hover{border-color:var(--accent);transform:rotate(30deg)}

.settings-panel{
  position:relative;z-index:2;
  margin:0 clamp(1rem,4vw,2.4rem);margin-top:.8rem;
  background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:1rem 1.2rem;
  display:flex;flex-wrap:wrap;gap:1rem;align-items:flex-end;
  animation:slideDown .3s ease;
}
@keyframes slideDown{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}
.settings-row{display:flex;flex-direction:column;gap:.3rem;flex:1;min-width:200px}
.settings-row label{font-size:.72rem;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}
.settings-row input{
  background:var(--bg);border:1px solid var(--line);color:var(--ink);
  padding:.55rem .7rem;border-radius:9px;font-family:'JetBrains Mono',monospace;font-size:.85rem;
}
.settings-row input:focus{outline:none;border-color:var(--accent)}
.settings-hint{flex-basis:100%;color:var(--muted);font-size:.78rem;margin:.2rem 0 0;line-height:1.5}

/* main grid */
.oai-main{
  position:relative;z-index:2;flex:1;
  display:grid;grid-template-columns:minmax(320px,420px) 1fr;gap:1.4rem;
  padding:1.4rem clamp(1rem,4vw,2.4rem);
}
@media(max-width:900px){.oai-main{grid-template-columns:1fr}}

/* control deck */
.control-deck{
  background:linear-gradient(180deg,var(--panel),var(--bg2));
  border:1px solid var(--line);border-radius:18px;padding:1.2rem;
  display:flex;flex-direction:column;gap:1rem;height:max-content;
}
.field-label{font-size:.8rem;color:var(--accent2);font-weight:600;letter-spacing:.02em}
.prompt-box{
  width:100%;min-height:170px;resize:vertical;
  background:var(--bg);border:1px solid var(--line);border-radius:12px;
  color:var(--ink);padding:.9rem 1rem;font-family:'JetBrains Mono',monospace;
  font-size:.9rem;line-height:1.55;transition:.2s;
}
.prompt-box:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(91,140,255,.15)}
.prompt-box::placeholder{color:var(--muted);opacity:.7}

.btn-row{display:flex;flex-wrap:wrap;gap:.55rem}
.oai-btn{
  border:1px solid var(--line);background:var(--panel2);color:var(--ink);
  padding:.62rem 1rem;border-radius:11px;font-family:inherit;font-weight:600;
  font-size:.85rem;cursor:pointer;transition:.18s;flex:1;min-width:110px;
}
.oai-btn:hover{transform:translateY(-2px)}
.oai-btn.primary{
  background:linear-gradient(135deg,var(--accent),#3a6bff);border-color:transparent;
  color:#fff;box-shadow:0 6px 20px rgba(91,140,255,.35);
}
.oai-btn.primary:hover{box-shadow:0 8px 26px rgba(91,140,255,.5)}
.oai-btn.ghost:hover{border-color:var(--accent2)}
.oai-btn.subtle{opacity:.8;font-weight:500}
.oai-btn.pb{flex:0 0 auto;min-width:46px;font-size:1rem}

.hw-selector{display:flex;flex-direction:column;gap:.5rem}
.hw-label{font-size:.72rem;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}
.hw-pills{display:flex;flex-wrap:wrap;gap:.35rem}
.hw-pill{
  border:1px solid var(--line);background:transparent;color:var(--muted);
  padding:.32rem .6rem;border-radius:20px;font-size:.72rem;cursor:pointer;transition:.15s;font-family:inherit;
}
.hw-pill:hover{color:var(--ink);border-color:var(--accent)}
.hw-pill.active{background:var(--accent);color:#fff;border-color:transparent;box-shadow:0 0 12px rgba(91,140,255,.4)}

/* display stage */
.display-stage{
  background:linear-gradient(180deg,var(--panel),var(--bg2));
  border:1px solid var(--line);border-radius:18px;padding:1.2rem;
  display:flex;flex-direction:column;min-height:420px;
}
.stage-empty,.stage-loading{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:.6rem;text-align:center;color:var(--muted);
}
.empty-glyph{font-size:3.4rem;color:var(--line);animation:pulse 3s ease-in-out infinite}
@keyframes pulse{50%{color:var(--accent);opacity:.7}}
.empty-sub{font-size:.82rem;opacity:.7}

.loader-dots{display:flex;gap:.4rem}
.loader-dots span{width:12px;height:12px;border-radius:50%;background:var(--accent2);animation:bounce 1s infinite}
.loader-dots span:nth-child(2){animation-delay:.15s}
.loader-dots span:nth-child(3){animation-delay:.3s}
@keyframes bounce{0%,100%{transform:translateY(0);opacity:.4}50%{transform:translateY(-10px);opacity:1}}
.stage-loading p{font-family:'JetBrains Mono',monospace;font-size:.85rem}

.stage-live{display:flex;flex-direction:column;gap:1rem;flex:1}
.mode-badge{align-self:flex-start;font-size:.72rem;padding:.25rem .7rem;border-radius:20px;font-weight:600}
.mode-badge.online{background:rgba(0,224,198,.15);color:var(--accent2);border:1px solid rgba(0,224,198,.3)}
.mode-badge.offline{background:rgba(255,93,115,.12);color:var(--danger);border:1px solid rgba(255,93,115,.3)}

/* ==================== DISPLAY HOUSING ==================== */
.housing{width:100%;border-radius:16px;padding:.5rem}
.housing-bezel{border-radius:12px;padding:.8rem;display:flex;flex-direction:column;gap:.6rem}
.housing-brand{display:flex;justify-content:space-between;align-items:center;font-size:.72rem;color:var(--muted);gap:.5rem}
.housing-brand>span:first-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:70%}
.hw-badge{background:rgba(255,255,255,.08);padding:.15rem .5rem;border-radius:6px;font-size:.66rem;white-space:nowrap}
.screen-frame{border-radius:10px;overflow:hidden;position:relative}
.screen-glass{
  position:relative;min-height:200px;display:flex;align-items:center;justify-content:center;
  padding:1.4rem 1rem;overflow:hidden;
}
.housing-foot{display:flex;justify-content:space-between;font-size:.68rem;color:var(--muted);gap:.5rem;flex-wrap:wrap}
.purpose-tag{background:rgba(91,140,255,.2);color:var(--accent);padding:.15rem .55rem;border-radius:6px;font-weight:600}

.disp-content{
  text-align:center;line-height:1.35;width:100%;
  font-weight:700;letter-spacing:.02em;
}
.disp-line{white-space:pre-wrap;word-break:break-word}
.disp-big{font-size:clamp(1.3rem,3.6vw,2.1rem)}
.disp-content:not(.disp-big){font-size:clamp(1rem,2.4vw,1.4rem)}

.cursor{animation:blink .5s step-end infinite}
@keyframes blink{50%{opacity:0}}

/* transitions */
.trans-fade{animation:tfade .6s ease}
@keyframes tfade{from{opacity:0}to{opacity:1}}
.trans-flash{animation:tflash 1s ease infinite}
@keyframes tflash{0%,100%{opacity:1}50%{opacity:.25}}
.trans-page{animation:tpage .5s ease}
@keyframes tpage{from{transform:translateY(30px);opacity:0}to{transform:none;opacity:1}}

.disp-scroll-wrap{width:100%;overflow:hidden;white-space:nowrap}
.scroll-marquee{
  display:inline-block;white-space:nowrap;padding-left:100%;
  animation-name:marquee;animation-timing-function:linear;animation-iteration-count:infinite;
}
@keyframes marquee{from{transform:translateX(0)}to{transform:translateX(-200%)}}

.flip-line{display:flex;justify-content:center;flex-wrap:wrap}
.flip-char{display:inline-block;animation:flipin .35s ease both;transform-origin:center top}
@keyframes flipin{0%{transform:rotateX(-90deg);opacity:0}60%{transform:rotateX(15deg);opacity:1}100%{transform:rotateX(0)}}

/* scanlines overlay */
.scanlines{position:absolute;inset:0;pointer-events:none;opacity:0}

/* ---- HARDWARE SKINS ---- */
/* LED matrix (amber default) */
.hw-led{background:#1a1200}
.hw-led .housing-bezel{background:#0a0800;border:2px solid #2a2210}
.hw-led .screen-glass{background:#050300}
.hw-led .disp-content{
  color:#ffb000;font-family:'VT323',monospace;letter-spacing:.06em;
  text-shadow:0 0 6px #ff9000,0 0 12px rgba(255,140,0,.5);
}
.hw-led.color-green .disp-content{color:#39ff6a;text-shadow:0 0 6px #39ff6a,0 0 12px rgba(57,255,106,.5)}
.hw-led.color-cyan .disp-content{color:#00e0ff;text-shadow:0 0 6px #00e0ff}
.hw-led.color-white .disp-content{color:#fff;text-shadow:0 0 6px #fff}
.hw-led .scanlines{opacity:.35;background:repeating-linear-gradient(0deg,rgba(0,0,0,.5) 0 1px,transparent 1px 3px);animation:ledscan 6s linear infinite}
@keyframes ledscan{to{background-position:0 30px}}

/* Flip-dot */
.hw-flip{background:#1a1a12}
.hw-flip .housing-bezel{background:#111109;border:2px solid #333}
.hw-flip .screen-glass{background:#141410;background-image:radial-gradient(circle,rgba(255,255,255,.03) 1px,transparent 1px);background-size:6px 6px}
.hw-flip .disp-content{color:#e8d84a;font-family:'VT323',monospace;letter-spacing:.05em;text-shadow:0 1px 0 #000}

/* Roller blind */
.hw-roller{background:#3a2f22}
.hw-roller .housing-bezel{background:#2a2015;border:3px solid #4a3a26;box-shadow:inset 0 0 20px rgba(0,0,0,.5)}
.hw-roller .screen-glass{background:linear-gradient(180deg,#efe6d0,#e2d6ba);background-image:repeating-linear-gradient(0deg,rgba(0,0,0,.03) 0 2px,transparent 2px 5px)}
.hw-roller .disp-content{color:#1a1a1a;font-family:'Bricolage Grotesque',sans-serif;font-weight:800;text-transform:uppercase}
.hw-roller .trans-scroll,.hw-roller .disp-content{animation:rollerdrop .6s cubic-bezier(.5,0,.1,1)}
@keyframes rollerdrop{0%{transform:translateY(-100%)}70%{transform:translateY(4%)}100%{transform:none}}

/* CRT */
.hw-crt{background:#111}
.hw-crt .housing-bezel{background:#1a1a1a;border:3px solid #2a2a2a;border-radius:20px}
.hw-crt .screen-frame{border-radius:24px}
.hw-crt .screen-glass{background:radial-gradient(ellipse at center,#062006,#020a02);border-radius:24px;animation:crtflicker 5s infinite}
@keyframes crtflicker{0%,96%,100%{opacity:1}97%{opacity:.85}98%{opacity:1}}
.hw-crt .disp-content{color:#5aff8a;font-family:'VT323',monospace;text-shadow:0 0 5px #5aff8a,0 0 12px rgba(90,255,138,.6)}
.hw-crt.color-amber .disp-content{color:#ffb000;text-shadow:0 0 5px #ffb000}
.hw-crt .scanlines{opacity:1;background:repeating-linear-gradient(0deg,rgba(0,0,0,.25) 0 2px,transparent 2px 4px);box-shadow:inset 0 0 60px rgba(0,0,0,.7)}

/* Plasma */
.hw-plasma{background:#180a04}
.hw-plasma .housing-bezel{background:#0a0402;border:2px solid #331810}
.hw-plasma .screen-glass{background:#0a0402}
.hw-plasma .disp-content{color:#ff7a2a;font-family:'JetBrains Mono',monospace;text-shadow:0 0 8px #ff5a00,0 0 20px rgba(255,90,0,.6)}

/* LCD */
.hw-lcd{background:#1c2230}
.hw-lcd .housing-bezel{background:#0e131c;border:2px solid #2c3646}
.hw-lcd .screen-glass{background:linear-gradient(180deg,#1a4a6e,#0e2f47)}
.hw-lcd .disp-content{color:#dff4ff;font-family:'JetBrains Mono',monospace;text-shadow:0 1px 2px rgba(0,0,0,.4)}
.hw-lcd.color-green .screen-glass{background:linear-gradient(180deg,#9bbf6a,#7ea34e)}
.hw-lcd.color-green .disp-content{color:#0c1a05}

/* OLED */
.hw-oled{background:#000}
.hw-oled .housing-bezel{background:#000;border:1px solid #1a1a1a;border-radius:16px}
.hw-oled .screen-glass{background:#000}
.hw-oled .disp-content{color:#fff;font-family:'Bricolage Grotesque',sans-serif;font-weight:600}
.hw-oled.color-cyan .disp-content{color:var(--accent2)}
.hw-oled.color-amber .disp-content{color:#ffb84d}

/* E-Ink */
.hw-eink{background:#c8c6bf}
.hw-eink .housing-bezel{background:#b6b4ac;border:3px solid #8f8d86;border-radius:8px}
.hw-eink .screen-glass{background:#e9e8e3;animation:einkflash .5s ease}
@keyframes einkflash{0%{background:#111;filter:invert(1)}15%{background:#e9e8e3;filter:none}}
.hw-eink .disp-content{color:#111;font-family:'JetBrains Mono',monospace;font-weight:700}

/* Projection */
.hw-projection{background:#0b0d16}
.hw-projection .housing-bezel{background:#080a12;border:1px dashed #2a3050}
.hw-projection .screen-glass{background:radial-gradient(ellipse at center,rgba(120,180,255,.08),transparent 70%)}
.hw-projection .disp-content{color:#bcd6ff;font-family:'Bricolage Grotesque',sans-serif;font-weight:300;text-shadow:0 0 14px rgba(120,180,255,.7);filter:blur(.3px)}

/* Holographic */
.hw-holographic{background:#04081a}
.hw-holographic .housing-bezel{background:linear-gradient(180deg,rgba(0,224,198,.05),rgba(120,80,255,.05));border:1px solid rgba(0,224,198,.25);border-radius:16px}
.hw-holographic .screen-glass{background:radial-gradient(ellipse at center,rgba(0,224,198,.08),transparent 70%);animation:holofloat 4s ease-in-out infinite}
@keyframes holofloat{50%{transform:translateY(-4px)}}
.hw-holographic .disp-content{
  font-family:'Bricolage Grotesque',sans-serif;font-weight:600;
  background:linear-gradient(90deg,#00e0c6,#8a7bff,#00e0c6);
  background-size:200% auto;-webkit-background-clip:text;background-clip:text;color:transparent;
  text-shadow:0 0 24px rgba(0,224,198,.4);animation:holoshimmer 3s linear infinite;
}
@keyframes holoshimmer{to{background-position:200% center}}

/* playback */
.playback{display:flex;align-items:center;gap:.5rem;flex-wrap:wrap}
.speed-ctl{display:flex;gap:.25rem;margin-left:auto}
.spd{background:var(--panel2);border:1px solid var(--line);color:var(--muted);padding:.3rem .55rem;border-radius:8px;font-size:.75rem;cursor:pointer;font-family:'JetBrains Mono',monospace}
.spd.active{background:var(--accent);color:#fff;border-color:transparent}

/* timeline */
.timeline{display:flex;gap:3px;height:8px}
.tl-seg{flex:1;background:var(--line);border:none;border-radius:4px;overflow:hidden;cursor:pointer;padding:0;position:relative;transition:.2s;min-width:6px}
.tl-seg:hover{background:#33407a}
.tl-seg.past{background:var(--accent)}
.tl-seg.active{background:#33407a}
.tl-fill{position:absolute;inset:0;background:var(--accent2);width:0;animation:fillbar linear forwards}
.tl-seg.active .tl-fill{width:100%}
@keyframes fillbar{from{width:0}to{width:100%}}

.stage-actions{display:flex;gap:.5rem;flex-wrap:wrap;margin-top:auto}
.stage-actions .oai-btn{flex:0 1 auto;min-width:auto;font-size:.78rem;padding:.5rem .8rem}

/* spec drawer */
.spec-drawer{
  position:relative;z-index:2;
  margin:0 clamp(1rem,4vw,2.4rem) 1rem;
  background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:1.4rem;
  animation:slideDown .3s ease;
}
.spec-drawer h3{margin:0 0 1rem;font-size:1.1rem}
.spec-drawer h4{margin:1.2rem 0 .6rem;font-size:.85rem;color:var(--accent2);text-transform:uppercase;letter-spacing:.06em}
.spec-meta{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:.6rem}
.meta-item{background:var(--bg);border:1px solid var(--line);border-radius:9px;padding:.55rem .7rem;display:flex;flex-direction:column;gap:.15rem}
.meta-k{font-size:.66rem;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}
.meta-v{font-size:.85rem;font-family:'JetBrains Mono',monospace}
.spec-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:.5rem;counter-reset:s}
.spec-screen{background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:.7rem .9rem;cursor:pointer;transition:.15s}
.spec-screen:hover{border-color:var(--accent)}
.spec-screen.cur{border-color:var(--accent2);box-shadow:0 0 0 1px var(--accent2)}
.ss-head{display:flex;justify-content:space-between;align-items:center;gap:.5rem;margin-bottom:.35rem;flex-wrap:wrap}
.ss-purpose{font-weight:700;font-size:.85rem;color:var(--accent)}
.ss-tags{font-size:.7rem;color:var(--muted);font-family:'JetBrains Mono',monospace}
.ss-text{margin:0;font-family:'JetBrains Mono',monospace;font-size:.82rem;color:var(--ink);white-space:pre-wrap;line-height:1.5}

/* footer */
.oai-footer{
  position:relative;z-index:2;margin-top:auto;
  padding:1.4rem clamp(1rem,4vw,2.4rem);
  border-top:1px solid var(--line);
  display:flex;justify-content:space-between;align-items:center;gap:1rem;flex-wrap:wrap;
  color:var(--muted);font-size:.78rem;
}
.oai-footer p{margin:0;font-style:italic;opacity:.75}
.remix-link{color:var(--accent2);text-decoration:none;font-weight:600;border:1px solid rgba(0,224,198,.3);padding:.4rem .9rem;border-radius:20px;transition:.2s;white-space:nowrap}
.remix-link:hover{background:rgba(0,224,198,.12);box-shadow:0 0 14px rgba(0,224,198,.3)}

@media(max-width:520px){
  .tagline{display:none}
  .oai-btn{min-width:calc(50% - .3rem)}
}