:root{
  --bg:#0d0e10;
  --panel:#151619;
  --panel2:#1b1c20;
  --line:#2a2c31;
  --text:#f5f5f5;
  --muted:#92959d;
  --accent:#f7ad19;
  --accent2:#ffcb55;
  --danger:#d55454;
  --shadow:0 24px 70px rgba(0,0,0,.36);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:Inter,Arial,sans-serif;
}
body.light{
  --bg:#f4f5f7;
  --panel:#ffffff;
  --panel2:#f0f1f4;
  --line:#d9dce2;
  --text:#151619;
  --muted:#656a74;
  --shadow:0 20px 55px rgba(17,24,39,.13);
}
button,input,select{font:inherit}
button,a{transition:.2s ease}
.promo{
  background:#111216;
  color:#e8e8e8;
  text-align:center;
  font-size:13px;
  padding:10px 16px;
  border-bottom:1px solid #25262b;
}
.topbar{
  position:sticky;
  top:0;
  z-index:20;
  height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  max-width:1180px;
  margin:auto;
  padding:0 24px;
  background:color-mix(in srgb,var(--bg) 88%,transparent);
  backdrop-filter:blur(14px);
}
.topbar:after{
  content:"";
  position:absolute;
  left:50%;
  bottom:0;
  width:100vw;
  transform:translateX(-50%);
  border-bottom:1px solid var(--line);
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:var(--accent);
  font-weight:800;
  text-decoration:none;
  font-size:19px;
}
.brand-icon{
  width:25px;height:25px;border:3px solid var(--accent);border-radius:50%;
  display:grid;place-items:center;position:relative
}
.brand-icon:before{content:"";width:7px;height:7px;background:var(--accent);border-radius:50%}
.brand-icon i{position:absolute;width:3px;height:3px;background:var(--bg);border-radius:50%}
nav{display:flex;gap:30px}
nav a{color:var(--muted);text-decoration:none;font-size:14px;font-weight:600}
nav a:hover{color:var(--text)}
.round-button{
  width:38px;height:38px;border-radius:50%;border:1px solid var(--line);
  background:var(--panel);color:var(--text);cursor:pointer
}
main{overflow:hidden}
.hero{
  min-height:535px;
  max-width:1180px;
  margin:auto;
  display:grid;
  grid-template-columns:1fr 1.1fr;
  align-items:center;
  gap:55px;
  padding:70px 24px;
}
.hero-art{height:370px;position:relative}
.album-card,.vinyl-card{
  position:absolute;
  width:300px;height:300px;border-radius:20px;
  box-shadow:var(--shadow);overflow:hidden
}
.album-card{
  left:20px;top:36px;
  background:
    linear-gradient(135deg,rgba(0,0,0,.15),rgba(0,0,0,.7)),
    radial-gradient(circle at 30% 25%,#6c3baa,transparent 45%),
    linear-gradient(145deg,#172130,#45212c);
  display:flex;align-items:flex-end;padding:28px;
}
.album-card span{font-family:Montserrat;font-size:38px;font-weight:800;line-height:.9}
.vinyl-card{
  right:5px;top:5px;background:linear-gradient(145deg,#2b1c35,#15151c);
  display:grid;place-items:center
}
.vinyl{
  border-radius:50%;
  background:
    repeating-radial-gradient(circle at center,#171717 0 3px,#222 4px 5px,#111 6px 9px);
  box-shadow:0 18px 35px rgba(0,0,0,.5);
  position:relative;display:grid;place-items:center
}
.hero-vinyl{width:250px;height:250px;animation:spin 7s linear infinite}
.vinyl:after{
  content:"";position:absolute;inset:2%;border-radius:50%;
  background:conic-gradient(from 50deg,transparent 0 13%,rgba(255,255,255,.14) 16%,transparent 21% 60%,rgba(255,255,255,.08) 65%,transparent 70%);
}
.label{
  width:42%;height:42%;border-radius:50%;
  background:var(--accent);color:#181818;display:grid;place-items:center;
  text-align:center;font-weight:800;line-height:.9;z-index:2
}
@keyframes spin{to{transform:rotate(360deg)}}
.hero-copy{text-align:center}
.kicker{color:var(--accent);font-size:12px;font-weight:800;letter-spacing:.13em}
h1{font-family:Montserrat;font-size:46px;line-height:1.08;margin:14px 0 14px}
.hero-copy p{max-width:660px;margin:0 auto 28px;color:var(--muted);font-size:17px;line-height:1.6}
.cta,.primary,.file-button{
  border:none;background:linear-gradient(180deg,var(--accent2),var(--accent));
  color:#18120a;font-weight:800;border-radius:999px;text-decoration:none;
  cursor:pointer;box-shadow:0 10px 25px rgba(247,173,25,.2)
}
.cta{display:inline-block;padding:16px 30px}
.hero-copy small{display:block;color:var(--muted);margin-top:22px}
.editor{max-width:1220px;margin:0 auto;padding:70px 24px}
.editor-title{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:25px}
h2{font-family:Montserrat;font-size:34px;margin:8px 0}
.ratio-buttons{display:flex;gap:8px;flex-wrap:wrap}
.ratio{
  border:1px solid var(--line);background:var(--panel);color:var(--muted);
  border-radius:999px;padding:10px 14px;cursor:pointer;font-weight:700;font-size:13px
}
.ratio.active{border-color:var(--accent);color:var(--accent);background:rgba(247,173,25,.08)}
.workspace{
  background:var(--panel);border:1px solid var(--line);border-radius:24px;
  display:grid;grid-template-columns:400px 1fr;overflow:hidden;box-shadow:var(--shadow)
}
.controls{padding:24px;border-right:1px solid var(--line)}
.control-card{
  display:grid;grid-template-columns:38px 1fr;gap:14px;
  padding:18px 0;border-bottom:1px solid var(--line)
}
.control-card:first-child{padding-top:0}
.step{
  width:32px;height:32px;border-radius:50%;display:grid;place-items:center;
  background:rgba(247,173,25,.12);color:var(--accent);font-weight:800
}
.control-card h3{margin:3px 0 6px}
.control-card p{color:var(--muted);font-size:13px;line-height:1.45;margin:0 0 12px}
.file-button{display:inline-block;padding:10px 15px;font-size:13px}
.file-button input{display:none}
.file-name{display:block;color:var(--muted);font-size:12px;margin-top:9px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:270px}
.settings-card{border-bottom:none}
.settings{width:100%}
.settings label{display:block;color:var(--muted);font-size:12px;font-weight:700;margin:16px 0}
.settings input[type=text],.settings select{
  width:100%;margin-top:7px;padding:11px 12px;border:1px solid var(--line);
  border-radius:10px;background:var(--panel2);color:var(--text)
}
.settings input[type=range]{width:100%;margin-top:9px;accent-color:var(--accent)}
.color-row,.checkbox-row{display:flex!important;align-items:center;justify-content:space-between;gap:12px}
.color-row input{width:46px;height:32px;border:0;background:transparent}
.checkbox-row{justify-content:flex-start!important}
.checkbox-row input{accent-color:var(--accent)}
.actions{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-top:20px}
.actions button{padding:12px;border-radius:11px;cursor:pointer;font-weight:800}
.primary{border:0}
.secondary{border:1px solid var(--line);background:var(--panel2);color:var(--text)}
.danger{grid-column:1/-1;border:1px solid rgba(213,84,84,.45);background:rgba(213,84,84,.08);color:#ef8a8a}
button:disabled{opacity:.45;cursor:not-allowed}
.status{min-height:18px;color:var(--muted);font-size:12px;line-height:1.5}
.preview-panel{
  min-width:0;padding:28px;background:
  radial-gradient(circle at center,rgba(247,173,25,.06),transparent 55%),
  var(--panel2);
  display:flex;flex-direction:column;align-items:center;justify-content:center
}
.preview-frame{
  max-width:100%;max-height:680px;display:grid;place-items:center;
  padding:13px;background:#09090a;border:1px solid #303238;border-radius:18px;
  box-shadow:0 24px 80px rgba(0,0,0,.45)
}
canvas{display:block;max-width:100%;max-height:620px;background:#101114}
audio{width:min(640px,100%);margin-top:18px}
.browser-note{color:var(--muted);font-size:12px;text-align:center}
.info-section{max-width:1180px;margin:auto;padding:90px 24px}
.info-section>h2{max-width:650px}
.info-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px;margin-top:30px}
.info-grid article{background:var(--panel);border:1px solid var(--line);padding:24px;border-radius:17px}
.info-grid b{color:var(--accent)}
.info-grid h3{margin:18px 0 8px}
.info-grid p{color:var(--muted);line-height:1.55;font-size:14px}
.about{max-width:900px;margin:0 auto 90px;text-align:center;padding:50px 24px;border-top:1px solid var(--line)}
.about p{color:var(--muted);line-height:1.7}
footer{text-align:center;color:var(--muted);border-top:1px solid var(--line);padding:28px;font-size:13px}
@media(max-width:950px){
  .hero{grid-template-columns:1fr;padding-top:45px}
  .hero-art{display:none}
  .workspace{grid-template-columns:1fr}
  .controls{border-right:0;border-bottom:1px solid var(--line)}
  .info-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:640px){
  nav{display:none}
  h1{font-size:36px}
  h2{font-size:28px}
  .editor-title{align-items:flex-start;flex-direction:column}
  .controls,.preview-panel{padding:18px}
  .info-grid{grid-template-columns:1fr}
  .actions{grid-template-columns:1fr}
  .danger{grid-column:auto}
}