/* FreeBG in-browser — minimal, fast, no frameworks */
:root {
  --bg: #0f1117;
  --panel: #171a23;
  --panel-2: #1f2330;
  --text: #eef0f6;
  --muted: #9aa3b5;
  --accent: #00d4a4;
  --accent-dim: rgba(0, 212, 164, .14);
  --border: #2a2f3f;
  --danger: #ff6b6b;
  --radius: 12px;
  --maxw: 1020px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
.microcopy { color: var(--muted); font-size: .85rem; }

/* Header */
.site-header { border-bottom: 1px solid var(--border); background: rgba(15,17,23,.9); position: sticky; top: 0; z-index: 10; backdrop-filter: blur(6px); }
.header-inner { display: flex; align-items: center; justify-content: space-between; padding-top: 10px; padding-bottom: 10px; }
.brand { display: flex; align-items: center; gap: 9px; color: var(--text); text-decoration: none; font-weight: 700; font-size: 1.05rem; }
.brand em { font-style: normal; color: var(--accent); font-weight: 600; }
.privacy-badge {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: .78rem; color: var(--accent);
  border: 1px solid var(--accent); border-radius: 999px; padding: 4px 12px;
  white-space: nowrap;
}

/* Hero */
.hero { text-align: center; padding: 52px 20px 30px; }
.hero h1 { font-size: clamp(1.7rem, 4.5vw, 2.7rem); line-height: 1.2; margin: 0 0 14px; letter-spacing: -.01em; }
.lede { font-size: 1.08rem; color: var(--muted); max-width: 640px; margin: 0 auto 22px; }
.lede strong { color: var(--text); }
.cta {
  display: inline-block; background: var(--accent); color: #06110d;
  font-weight: 700; padding: 13px 30px; border-radius: 999px; text-decoration: none;
  font-size: 1.05rem;
}
.cta:hover { filter: brightness(1.08); }

/* Tool */
.tool-section { padding: 10px 20px 8px; }
.dropzone {
  border: 2px dashed var(--border); border-radius: var(--radius);
  background: var(--panel); padding: 44px 20px; text-align: center; cursor: pointer;
  transition: border-color .15s, background .15s;
}
.dropzone:hover, .dropzone:focus-visible, .dropzone.dragging { border-color: var(--accent); background: var(--panel-2); outline: none; }
.dropzone-inner svg { color: var(--muted); margin-bottom: 8px; }
.dropzone p { margin: 6px 0; }
.linklike { color: var(--accent); text-decoration: underline; }

.progress-wrap { margin: 18px 0; background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; }
.progress-label { font-weight: 600; margin-bottom: 8px; }
.progress-track { height: 10px; background: #0b0d13; border-radius: 999px; overflow: hidden; }
.progress-bar { height: 100%; width: 0%; background: var(--accent); border-radius: 999px; transition: width .2s; }

.editor { margin-top: 6px; }
.toolbar { display: flex; flex-wrap: wrap; gap: 10px 18px; align-items: center; background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px 14px; margin-bottom: 12px; }
.tool-group { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.tool-label { color: var(--muted); font-size: .85rem; }
.btn {
  font: inherit; cursor: pointer; border-radius: 8px; padding: 8px 14px;
  border: 1px solid var(--border); background: var(--panel-2); color: var(--text);
}
.btn:hover:not(:disabled) { border-color: var(--accent); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #06110d; font-weight: 700; }
.btn.primary:hover:not(:disabled) { filter: brightness(1.08); }
.btn.ghost { background: transparent; }
.btn.toggle.is-active { background: var(--accent-dim); border-color: var(--accent); color: var(--accent); }
.slider-label { display: inline-flex; align-items: center; gap: 8px; color: var(--muted); font-size: .85rem; }
input[type="range"] { accent-color: var(--accent); width: 110px; }

.status { min-height: 1.6em; color: var(--muted); font-size: .92rem; margin: 4px 2px 10px; }
.status.error { color: var(--danger); }
.status.ok { color: var(--accent); }

.stage { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 700px) { .stage { grid-template-columns: 1fr; } }
.pane { margin: 0; }
.pane figcaption { font-weight: 600; margin-bottom: 8px; font-size: .95rem; }
.pane canvas { width: 100%; height: auto; display: block; border-radius: 8px; border: 1px solid var(--border); background: #0b0d13; touch-action: none; }
.canvas-wrap { position: relative; border-radius: 8px; overflow: hidden; border: 1px solid var(--border); }
.canvas-wrap canvas { border: none; border-radius: 0; }
.checker {
  background-image: linear-gradient(45deg, #2a2f3f 25%, transparent 25%), linear-gradient(-45deg, #2a2f3f 25%, transparent 25%), linear-gradient(45deg, transparent 75%, #2a2f3f 75%), linear-gradient(-45deg, transparent 75%, #2a2f3f 75%);
  background-size: 20px 20px; background-position: 0 0, 0 10px, 10px -10px, -10px 0;
  background-color: #161922;
}
.bg-white .canvas-wrap, .canvas-wrap.bg-white { background: #fff; }
.bg-black .canvas-wrap, .canvas-wrap.bg-black { background: #000; }
.brush-cursor {
  position: absolute; border: 2px solid var(--accent); border-radius: 50%;
  pointer-events: none; transform: translate(-50%, -50%); z-index: 5;
  box-shadow: 0 0 0 1px rgba(0,0,0,.5);
}
.brush-hint { margin-top: 10px; }

/* Content sections */
.how, .why, .upgrades, .faq { padding: 34px 20px 6px; }
h2 { font-size: 1.45rem; margin: 0 0 14px; letter-spacing: -.01em; }
.steps { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
@media (min-width: 720px) { .steps { grid-template-columns: repeat(3, 1fr); } }
.steps li { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; }
.why-list { list-style: none; padding: 0; margin: 0 0 12px; display: grid; gap: 12px; }
.why-list li { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; }
.why-list strong { color: var(--accent); }

.cards { display: grid; gap: 14px; margin: 16px 0; }
@media (min-width: 720px) { .cards { grid-template-columns: 1fr 1fr; } }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
.card h3 { margin: 0 0 8px; font-size: 1.08rem; }
.card p { color: var(--muted); margin: 0 0 14px; }
.card .btn { display: inline-block; text-decoration: none; }
.disclosure { background: var(--panel); border-left: 3px solid var(--accent); padding: 12px 16px; border-radius: 0 8px 8px 0; font-size: .88rem; color: var(--muted); }
.disclosure strong { color: var(--text); }

.faq details { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 18px; margin-bottom: 10px; }
.faq summary { cursor: pointer; font-weight: 600; }
.faq summary::marker { color: var(--accent); }
.faq details p { color: var(--muted); margin: 10px 0 4px; }
.faq details p strong, .faq details strong { color: var(--text); }

.site-footer { border-top: 1px solid var(--border); margin-top: 44px; padding: 26px 0 40px; color: var(--muted); font-size: .88rem; }
.site-footer a { color: var(--accent); }