/* Minimal, modern styles. Edit freely. */
:root{
  --bg:#0b0f14;
  --panel:#111826;
  --text:#e7edf6;
  --muted:#9fb0c7;
  --border:rgba(255,255,255,0.12);
  --accent:#5aa7ff;
  --accent2:#9f7bff;
  --radius:14px;
  --shadow: 0 8px 30px rgba(0,0,0,.35);
  --max: 1080px;
  --pad: 20px;
  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Apple Color Emoji","Segoe UI Emoji";
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:var(--font);
  color:var(--text);
  background: radial-gradient(1200px 600px at 20% -10%, rgba(90,167,255,.25), transparent 55%),
              radial-gradient(900px 500px at 80% 0%, rgba(159,123,255,.18), transparent 60%),
              var(--bg);
  line-height:1.55;
}

a{color:inherit;text-decoration:none}
a:hover{opacity:.92}

.site-header{
  position:sticky; top:0;
  backdrop-filter: blur(10px);
  background: rgba(11,15,20,.72);
  border-bottom:1px solid var(--border);
  display:flex; gap:16px; align-items:center;
  padding: 14px var(--pad);
  z-index:20;
}

.brand{font-weight:700; letter-spacing:.2px}

.nav{margin-left:auto; display:flex; gap:14px; align-items:center}
.nav a{color:var(--muted); font-weight:600}
.nav a:hover{color:var(--text)}

.nav-toggle{
  display:none;
  border:1px solid var(--border);
  background: rgba(255,255,255,.04);
  color:var(--text);
  padding:10px 12px;
  border-radius: 12px;
  cursor:pointer;
}

main{max-width:var(--max); margin:0 auto; padding: 0 var(--pad) 60px}

.generator-layout{
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 28px;
  align-items: start;
  overflow: visible;
}
.generator-preview{
  position: relative;
  max-width: 100%;
  overflow: visible;
}
.generator-preview .preview-wrap{
  margin-top: 8px;
  position: relative;
  border: 2px solid transparent;
  border-radius: var(--radius);
  transition: border-color 0.15s ease;
}
.generator-preview .preview-wrap.layer-selected{
  border-color: #e67e22;
  box-shadow: 0 0 0 1px rgba(230,126,34,0.3);
}
.layer-strip{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
  min-height: 44px;
}
.layer-slot{
  padding: 8px 14px;
  border: 2px solid var(--border);
  border-radius: 10px;
  background: rgba(255,255,255,.05);
  color: var(--text);
  font-weight: 700;
  font-size: 13px;
  cursor: pointer;
}
.layer-slot:hover{ border-color: var(--muted); background: rgba(255,255,255,.08); }
.layer-slot.selected{ border-color: #e67e22; background: rgba(230,126,34,.15); }
.edit-layer-panel{
  margin-top: 14px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(0,0,0,.2);
}
.edit-layer-heading{ margin: 0 0 10px; font-size: 1em; }
.edit-layer-colours{ display: flex; flex-wrap: wrap; gap: 14px; align-items: center; margin-bottom: 10px; }
.edit-layer-colours label{ display: flex; align-items: center; gap: 8px; font-weight: 600; font-size: 0.9em; margin: 0; }
.edit-layer-colours input[type="range"]{ width: 100px; }
.edit-layer-colours input[type="color"]{ width: 36px; height: 28px; padding: 2px; border-radius: 6px; cursor: pointer; }
.edit-layer-controls{ margin-top: 8px; }
.edit-layer-title{ margin: 18px 0 14px; font-size: 22px; }
.generator-controls{
  min-width: 280px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.generator-controls input[type="color"]{
  display: block;
  width: 100%;
  min-height: 56px;
  padding: 6px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  background: transparent;
  cursor: pointer;
}
.generator-controls input[type="color"]:focus{
  border-color: rgba(90,167,255,.6);
  outline: none;
}
.generator-controls #centralColorHex{
  display: block;
  margin-top: 8px;
  font-size: 0.95em;
  color: var(--muted);
}

.section{padding: 22px 0}
.section h2{margin: 18px 0 14px; font-size: 22px}

.grid{
  display:grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.card{
  background: rgba(255,255,255,.04);
  border:1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
}
.card h3{margin:0 0 8px}
.card p{margin:0; color:var(--muted)}

.measure{max-width: 72ch; color: var(--muted)}
.legend-hint{font-weight:400;color:var(--muted);font-size:0.9em}

.custom-icon-wrap{
  margin-top: 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.custom-icon-wrap label{font-weight:600; font-size:0.95em}
.custom-icon-wrap input[type="url"]{
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(255,255,255,.06);
  color: var(--text);
  font-size: 14px;
}
.control-hint{
  font-size: 0.85em;
  color: var(--muted);
  line-height: 1.4;
}

.layer-list{
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.layer-row{
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(255,255,255,.03);
}
.layer-row-header{
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}
.layer-label{
  font-weight: 700;
  font-size: 0.9em;
}
.layer-remove{
  padding: 6px 10px;
  font-size: 12px;
  border-radius: 8px;
  cursor: pointer;
}
.layer-row label{
  display: block;
  font-size: 0.85em;
  font-weight: 600;
  margin-top: 8px;
  margin-bottom: 4px;
}
.layer-row .layer-url{
  width: 100%;
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.06);
  color: var(--text);
  font-size: 13px;
}
.layer-numbers{
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 6px;
}
.layer-numbers label{
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 4px;
}
.layer-numbers input[type="number"]{
  width: 70px;
  padding: 6px 8px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.06);
  color: var(--text);
}

.stripe-list{ display: flex; flex-direction: column; gap: 8px; margin-bottom: 10px; }
.stripe-row{
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.stripe-row label{ font-weight: 600; font-size: 0.9em; min-width: 60px; margin: 0; }
.stripe-row input[type="color"]{
  width: 44px;
  height: 32px;
  padding: 2px;
  border-radius: 8px;
  border: 1px solid var(--border);
  cursor: pointer;
}
.stripe-row .stripe-remove{ padding: 6px 10px; font-size: 12px; }

.button{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding: 11px 14px;
  border-radius: 12px;
  border:1px solid rgba(90,167,255,.35);
  background: linear-gradient(180deg, rgba(90,167,255,.28), rgba(90,167,255,.12));
  color: var(--text);
  font-weight: 700;
  cursor:pointer;
}
.button:hover{transform: translateY(-1px)}
.button:active{transform: translateY(0)}
.button-ghost{
  border:1px solid var(--border);
  background: rgba(255,255,255,.04);
}

.form{
  max-width: 560px;
  display:grid;
  gap: 12px;
}
label span{display:block; font-weight:700; margin-bottom:6px}
input, textarea{
  width:100%;
  border-radius: 12px;
  border:1px solid var(--border);
  background: rgba(255,255,255,.03);
  color: var(--text);
  padding: 10px 12px;
  outline:none;
}
input:focus, textarea:focus{border-color: rgba(90,167,255,.6)}
.form-status{margin:0; color: var(--muted); min-height: 1.2em}

.site-footer{
  border-top:1px solid var(--border);
  padding: 18px var(--pad);
  color: var(--muted);
  max-width: var(--max);
  margin: 0 auto;
}

/* Mobile */
@media (max-width: 860px){
  .grid{grid-template-columns: 1fr}
  .generator-layout{
    grid-template-columns: 1fr;
  }
  .nav{display:none}
  .nav-toggle{display:inline-flex; margin-left:auto}
  .nav.is-open{
    display:flex;
    flex-direction:column;
    width:100%;
    gap:10px;
    padding-top: 10px;
  }
  .site-header{flex-wrap:wrap}
}