:root{
  --bg:#0d0c0a;
  --bg-2:#141310;
  --panel:#191712;
  --line:#2c2921;
  --cream:#f2ede3;
  --cream-dim:#a89f8d;
  --accent:#d4ff3f;
  --accent-ink:#141800;
  --ember:#ff5c1f;
  --radius:14px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--cream);
  font-family:'IBM Plex Mono',monospace;
  min-height:100vh;
  overflow-x:hidden;
}
/* ---- grain + glow atmosphere ---- */
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(60vw 50vh at 85% -10%, rgba(212,255,63,.07), transparent 60%),
    radial-gradient(50vw 40vh at -10% 110%, rgba(255,92,31,.06), transparent 60%);
}
body::after{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:60;opacity:.05;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
}
::selection{background:var(--accent);color:var(--accent-ink)}

/* ---- header ---- */
header{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;
  padding:22px 40px;border-bottom:1px solid var(--line);
  animation:fadeDown .7s cubic-bezier(.2,.8,.2,1) both;
}
.brand{display:flex;align-items:baseline;gap:14px}
.brand h1{
  font-family:'Fraunces',serif;font-weight:600;font-size:30px;letter-spacing:.02em;
}
.brand h1 em{font-style:italic;color:var(--accent)}
.brand .tag{font-size:11px;color:var(--cream-dim);letter-spacing:.18em;text-transform:uppercase}
.auth-btn{
  font-family:'IBM Plex Mono',monospace;font-size:12px;letter-spacing:.08em;
  background:transparent;color:var(--cream);border:1px solid var(--line);
  padding:10px 18px;border-radius:99px;cursor:pointer;transition:.25s;
}
.auth-btn:hover{border-color:var(--accent);color:var(--accent)}
.auth-btn.signed{border-color:var(--accent);color:var(--accent)}

/* ---- layout ---- */
main{
  position:relative;z-index:1;
  display:grid;grid-template-columns:400px 1fr;gap:0;
  min-height:calc(100vh - 81px);
}
@media(max-width:960px){main{grid-template-columns:1fr}}

/* ---- control panel ---- */
.panel{
  border-right:1px solid var(--line);padding:34px 30px 60px;
  display:flex;flex-direction:column;gap:26px;
  animation:fadeUp .8s .1s cubic-bezier(.2,.8,.2,1) both;
}
.field label{
  display:block;font-size:10px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--cream-dim);margin-bottom:10px;
}
textarea{
  width:100%;min-height:110px;resize:vertical;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius);
  color:var(--cream);font-family:'IBM Plex Mono',monospace;font-size:13px;line-height:1.6;
  padding:14px 16px;outline:none;transition:border-color .25s;
}
textarea:focus{border-color:var(--accent)}
textarea::placeholder{color:#5c5648}
input[type=text],input[type=number],select{
  width:100%;background:var(--bg-2);border:1px solid var(--line);border-radius:10px;
  color:var(--cream);font-family:'IBM Plex Mono',monospace;font-size:12px;
  padding:11px 14px;outline:none;transition:border-color .25s;
}
input:focus,select:focus{border-color:var(--accent)}
select{appearance:none;cursor:pointer;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%23a89f8d'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;
}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  font-size:11px;padding:7px 13px;border-radius:99px;cursor:pointer;
  border:1px solid var(--line);color:var(--cream-dim);background:transparent;
  font-family:'IBM Plex Mono',monospace;transition:.2s;
}
.chip:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px)}
.chip.on{background:var(--accent);color:var(--accent-ink);border-color:var(--accent);font-weight:600}
.ratios{display:grid;grid-template-columns:repeat(5,1fr);gap:8px}
.ratio{
  border:1px solid var(--line);border-radius:10px;background:transparent;cursor:pointer;
  padding:9px 4px 7px;display:flex;flex-direction:column;align-items:center;gap:6px;
  color:var(--cream-dim);font-family:'IBM Plex Mono',monospace;font-size:10px;transition:.2s;
}
.ratio .box{border:1.5px solid currentColor;border-radius:3px}
.ratio:hover{color:var(--cream)}
.ratio.on{border-color:var(--accent);color:var(--accent)}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.gen-btn{
  margin-top:4px;position:relative;overflow:hidden;
  background:var(--accent);color:var(--accent-ink);border:none;border-radius:var(--radius);
  font-family:'IBM Plex Mono',monospace;font-weight:600;font-size:14px;letter-spacing:.1em;
  padding:18px;cursor:pointer;transition:transform .15s, box-shadow .25s;
  text-transform:uppercase;
}
.gen-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 12px 40px rgba(212,255,63,.25)}
.gen-btn:active:not(:disabled){transform:translateY(0)}
.gen-btn:disabled{opacity:.45;cursor:not-allowed}
.gen-btn .spin{display:none}
.gen-btn.loading .spin{display:inline-block;animation:rot 1s linear infinite}
@keyframes rot{to{transform:rotate(360deg)}}
.hint{font-size:10px;color:#5c5648;line-height:1.7}

/* ---- canvas / result ---- */
.stage{
  padding:34px 40px 60px;display:flex;flex-direction:column;gap:34px;
  animation:fadeUp .8s .2s cubic-bezier(.2,.8,.2,1) both;
}
.viewport{
  position:relative;border:1px solid var(--line);border-radius:20px;
  background:var(--bg-2);min-height:480px;
  display:flex;align-items:center;justify-content:center;overflow:hidden;
}
.viewport .empty{
  text-align:center;color:#5c5648;padding:40px;
}
.viewport .empty .glyph{
  font-family:'Fraunces',serif;font-style:italic;font-size:64px;color:var(--line);
  display:block;margin-bottom:14px;
}
.viewport .empty p{font-size:12px;letter-spacing:.1em}
.viewport img.result{
  max-width:100%;max-height:72vh;display:block;
  animation:reveal .6s cubic-bezier(.2,.8,.2,1) both;
}
@keyframes reveal{from{opacity:0;transform:scale(.97);filter:blur(8px)}to{opacity:1;transform:scale(1);filter:blur(0)}}
.shimmer{
  position:absolute;inset:0;display:none;align-items:center;justify-content:center;
  flex-direction:column;gap:18px;background:var(--bg-2);
}
.shimmer.on{display:flex}
.shimmer .bar{
  width:220px;height:3px;border-radius:99px;background:var(--line);overflow:hidden;position:relative;
}
.shimmer .bar::after{
  content:"";position:absolute;inset:0;width:40%;background:var(--accent);border-radius:99px;
  animation:slide 1.2s ease-in-out infinite;
}
@keyframes slide{0%{left:-40%}100%{left:100%}}
.shimmer p{font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--cream-dim)}
.result-bar{
  display:none;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
}
.result-bar.on{display:flex}
.result-bar .meta{font-size:11px;color:var(--cream-dim);line-height:1.7}
.result-bar .actions{display:flex;gap:10px}
.btn-ghost{
  font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:.08em;
  background:transparent;color:var(--cream);border:1px solid var(--line);
  padding:10px 16px;border-radius:99px;cursor:pointer;transition:.2s;text-decoration:none;
  display:inline-flex;align-items:center;gap:8px;
}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-video{border-color:var(--ember);color:var(--ember)}
.btn-video:hover{border-color:var(--ember);background:var(--ember);color:#1a0b04}

/* ---- video panel ---- */
.video-panel{
  display:none;border:1px solid var(--line);border-radius:20px;
  background:var(--panel);overflow:hidden;
}
.video-panel.on{display:block;animation:fadeUp .5s cubic-bezier(.2,.8,.2,1) both}
.video-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:20px 26px;border-bottom:1px solid var(--line);
}
.video-title{font-family:'Fraunces',serif;font-weight:500;font-size:24px;margin:0}
.video-title em{font-style:italic;color:var(--ember)}
.video-controls{
  padding:24px 26px;display:grid;grid-template-columns:2fr 1.4fr 1.6fr;gap:20px;align-items:start;
}
@media(max-width:1100px){.video-controls{grid-template-columns:1fr}}
.video-ta{min-height:92px}
.video-controls .video-go{align-self:end}
.video-stage{padding:0 26px 26px;display:flex;flex-direction:column;gap:14px;align-items:flex-start}
.video-out video{
  max-width:100%;max-height:60vh;border-radius:12px;border:1px solid var(--line);
  display:block;background:#000;
  animation:reveal .6s cubic-bezier(.2,.8,.2,1) both;
}
.video-loading{
  display:flex;align-items:center;gap:14px;padding:26px;
  border:1px dashed var(--line);border-radius:12px;width:100%;
}
.video-loading .bar{
  width:220px;height:3px;border-radius:99px;background:var(--line);overflow:hidden;position:relative;
}
.video-loading .bar::after{
  content:"";position:absolute;inset:0;width:40%;background:var(--ember);border-radius:99px;
  animation:slide 1.2s ease-in-out infinite;
}
.video-loading p{font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--cream-dim)}

/* ---- history ---- */
.history h2{
  font-family:'Fraunces',serif;font-weight:500;font-size:22px;margin-bottom:16px;
  display:flex;align-items:center;gap:12px;
}
.history h2 .count{
  font-family:'IBM Plex Mono',monospace;font-size:10px;color:var(--accent);
  border:1px solid var(--line);border-radius:99px;padding:3px 10px;letter-spacing:.1em;
}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}
.thumb{
  position:relative;aspect-ratio:1;border-radius:12px;overflow:hidden;cursor:pointer;
  border:1px solid var(--line);background:var(--bg-2);transition:.25s;
}
.thumb img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .4s}
.thumb:hover{border-color:var(--accent);transform:translateY(-3px)}
.thumb:hover img{transform:scale(1.06)}
.thumb .dl{
  position:absolute;right:8px;bottom:8px;width:30px;height:30px;border-radius:50%;
  background:rgba(13,12,10,.8);border:1px solid var(--line);color:var(--cream);
  display:flex;align-items:center;justify-content:center;font-size:13px;text-decoration:none;
  opacity:0;transition:.2s;
}
.thumb:hover .dl{opacity:1}
.toast{
  position:fixed;bottom:26px;left:50%;transform:translateX(-50%) translateY(20px);
  background:var(--panel);border:1px solid var(--ember);color:var(--cream);
  padding:13px 22px;border-radius:12px;font-size:12px;z-index:100;
  opacity:0;pointer-events:none;transition:.3s;max-width:90vw;
}
.toast.on{opacity:1;transform:translateX(-50%) translateY(0)}
@keyframes fadeDown{from{opacity:0;transform:translateY(-14px)}to{opacity:1;transform:none}}
@keyframes fadeUp{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}