:root {
  --bg: #0e0f12;
  --panel: #16181d;
  --line: #2a2d35;
  --ink: #e8e9ec;
  --mute: #8a8f99;
  --accent: #6ea8ff;
  --accent-2: #2a4a86;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--ink);
  font: 14px/1.45 -apple-system, BlinkMacSystemFont, "SF Pro Text", system-ui, sans-serif; }
header { padding: 28px 32px 8px; }
header h1 { margin: 0; font-size: 20px; letter-spacing: -0.01em; }
header .tag { margin: 4px 0 0; color: var(--mute); }
header .home-link { display: inline-block; margin-bottom: 10px; color: var(--mute);
  text-decoration: none; font-size: 13px; }
header .home-link:hover { color: var(--accent); }
main { padding: 16px 32px 64px; display: flex; flex-direction: column; gap: 16px; max-width: 1200px; }

.step { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 16px; }
.hidden { display: none !important; }

.row { display: flex; gap: 12px; flex-wrap: wrap; }
.filebox { flex: 1; min-width: 240px; display: flex; flex-direction: column; gap: 6px;
  border: 1px dashed var(--line); border-radius: 8px; padding: 12px; cursor: pointer; }
.filebox:hover { border-color: var(--accent-2); }
.filebox .label { font-weight: 600; }
.filebox input[type=file] { color: var(--mute); }
.filebox .filename { color: var(--mute); font-size: 12px; }

.toolbar { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 12px; }
.toolbar button { background: #1f232b; color: var(--ink); border: 1px solid var(--line);
  padding: 6px 12px; border-radius: 6px; cursor: pointer; }
.toolbar button:hover { border-color: var(--accent-2); }
.toolbar .sep { width: 1px; height: 18px; background: var(--line); margin: 0 4px; }
.toolbar .hint { color: var(--mute); font-size: 12px; }
.check { display: inline-flex; align-items: center; gap: 6px; }

.stage { position: relative; display: inline-block; line-height: 0;
  border: 1px solid var(--line); background: #fff; max-width: 100%; }
.stage canvas { display: block; max-width: 100%; height: auto; }
#overlay { position: absolute; inset: 0; cursor: crosshair; }
#logo-box { position: absolute; border: 1.5px solid var(--accent);
  box-shadow: 0 0 0 1px rgba(0,0,0,0.25) inset; cursor: move; }
#logo-box img { width: 100%; height: 100%; display: block; pointer-events: none; user-select: none; }
.handle { position: absolute; width: 12px; height: 12px; background: var(--accent);
  border: 1px solid #fff; border-radius: 2px; }
.handle[data-dir="nw"] { top: -7px; left: -7px; cursor: nwse-resize; }
.handle[data-dir="ne"] { top: -7px; right: -7px; cursor: nesw-resize; }
.handle[data-dir="sw"] { bottom: -7px; left: -7px; cursor: nesw-resize; }
.handle[data-dir="se"] { bottom: -7px; right: -7px; cursor: nwse-resize; }

button.primary { background: var(--accent); color: #0c1018; border: 0;
  padding: 10px 16px; border-radius: 6px; font-weight: 600; cursor: pointer; }
button.primary:hover { filter: brightness(1.1); }
button:disabled { opacity: 0.4; cursor: not-allowed; }

#crop-overlay { position: absolute; inset: 0; cursor: crosshair; }
#crop-box { position: absolute; border: 1.5px solid var(--accent);
  box-shadow: 0 0 0 9999px rgba(0,0,0,0.55); cursor: move; }
#status { color: var(--mute); margin-left: 12px; font-size: 12px; }

.fname { display: inline-flex; align-items: center; gap: 8px; margin-right: 16px; }
.fname > span { color: var(--mute); font-size: 12px; }
.fname input { background: #1f232b; color: var(--ink); border: 1px solid var(--line);
  border-radius: 6px; padding: 8px 10px; min-width: 280px; font: inherit; }
.fname input:focus { outline: none; border-color: var(--accent); }
.fname .ext { color: var(--mute); }

/* --- placement advisor (SAUCE relay) -------------------------------------- */
#advisor-note { color: var(--mute); font-size: 12px; margin: 0 0 10px; }
#advisor-input { width: 100%; min-height: 76px; resize: vertical; padding: 10px;
  background: #1f232b; color: var(--ink); border: 1px solid var(--line);
  border-radius: 6px; font: inherit; }
#advisor-input:focus { outline: none; border-color: var(--accent); }
#advisor-out { white-space: pre-wrap; margin-top: 12px; padding: 12px; font-size: 13px;
  line-height: 1.6; background: #12141a; border: 1px solid var(--line); border-radius: 6px; }
#advisor-out:empty { display: none; }
#advisor-status { color: var(--mute); font-size: 12px; margin-left: 12px; }
#advisor-status.bad { color: #ff9a8f; }