/* ==========================================================================
   Hama Beads Creator — estilos
   Mobile-first: controles empilhados; em telas largas vira layout de 2 colunas
   (painel de controle à esquerda, resultado à direita).
   ========================================================================== */

:root {
  --bg: #16161a;
  --panel: #1f1f27;
  --panel-2: #262631;
  --line: #34343f;
  --text: #ececf1;
  --muted: #9a9aa8;
  --accent: #ff8a4c;
  --accent-2: #4caf50;
  --radius: 10px;
}

* { box-sizing: border-box; }

/* O atributo `hidden` deve sempre esconder, mesmo quando uma classe define
   display (ex.: .grid-canvas{display:block} ou .placeholder{display:flex}). */
[hidden] { display: none !important; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  font-size: 15px;
  -webkit-text-size-adjust: 100%;
}

h1, h2 { margin: 0; }

.topbar {
  padding: 14px 16px;
  background: linear-gradient(180deg, #20202a, #16161a);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 5;
}
.topbar h1 { font-size: 1.15rem; }
.topbar .sub { margin: 2px 0 0; color: var(--muted); font-size: 0.82rem; }

/* ---------- Layout ---------- */
.layout {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 14px;
  max-width: 1400px;
  margin: 0 auto;
}

@media (min-width: 920px) {
  .layout {
    flex-direction: row;
    align-items: flex-start;
  }
  .controls {
    flex: 0 0 360px;
    position: sticky;
    top: 70px;
    max-height: calc(100vh - 84px);
    overflow-y: auto;
  }
  .output { flex: 1 1 auto; min-width: 0; }
}

/* ---------- Painéis de controle ---------- */
.controls { display: flex; flex-direction: column; gap: 12px; }

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px 14px;
}
.panel h2 {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--accent);
  margin-bottom: 10px;
}

.field { margin-bottom: 12px; }
.field:last-child { margin-bottom: 0; }
.field label { display: block; font-size: 0.82rem; color: var(--muted); margin-bottom: 5px; }
.field.check label { color: var(--text); }
.field output { color: var(--text); font-weight: 600; }

input[type="range"] { width: 100%; accent-color: var(--accent); }
select {
  width: 100%;
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px;
  font-size: 0.9rem;
}

.row { display: flex; align-items: center; gap: 8px; }
.row.wrap { flex-wrap: wrap; }
.row .grow { flex: 1 1 auto; min-width: 0; }

button {
  cursor: pointer;
  border: 1px solid var(--line);
  background: var(--accent);
  color: #1a1a1a;
  font-weight: 600;
  border-radius: 8px;
  padding: 9px 12px;
  font-size: 0.9rem;
}
button.ghost { background: var(--panel-2); color: var(--text); }
button:hover { filter: brightness(1.08); }
button:active { transform: translateY(1px); }

.file-btn {
  display: block;
  text-align: center;
  background: var(--accent);
  color: #1a1a1a;
  font-weight: 700;
  border-radius: 8px;
  padding: 11px;
  cursor: pointer;
  margin-bottom: 8px;
}
.file-btn:hover { filter: brightness(1.08); }

.hint { font-size: 0.78rem; color: var(--muted); margin: 0 0 8px; }
.muted { color: var(--muted); font-size: 0.82rem; }

/* ---------- Recorte ---------- */
.crop-stage {
  position: relative;
  width: 100%;
  height: 260px;
  background: #0e0e12 url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="20" height="20"><rect width="10" height="10" fill="%23222"/><rect x="10" y="10" width="10" height="10" fill="%23222"/></svg>');
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  touch-action: none;
  margin-bottom: 8px;
}
.crop-img { user-select: none; pointer-events: none; -webkit-user-drag: none; }
.crop-box {
  position: absolute;
  border: 2px solid var(--accent);
  /* Escurece o que está fora da seleção. O spread é limitado (não 9999px) para
     não criar uma camada gigante que trava o compositor — o palco tem
     overflow:hidden, então o resultado visual é o mesmo. */
  box-shadow: 0 0 0 1000px rgba(0, 0, 0, 0.55);
  cursor: move;
  touch-action: none;
}
.crop-handle {
  position: absolute;
  width: 18px;
  height: 18px;
  background: var(--accent);
  border: 2px solid #1a1a1a;
  border-radius: 50%;
  touch-action: none;
}
.crop-handle-nw { left: -9px; top: -9px; cursor: nwse-resize; }
.crop-handle-ne { right: -9px; top: -9px; cursor: nesw-resize; }
.crop-handle-sw { left: -9px; bottom: -9px; cursor: nesw-resize; }
.crop-handle-se { right: -9px; bottom: -9px; cursor: nwse-resize; }

/* ---------- Substituição de cor ---------- */
.replace-list { list-style: none; margin: 8px 0 0; padding: 0; }
.replace-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--panel-2);
  border-radius: 6px;
  padding: 5px 8px;
  margin-bottom: 5px;
  font-size: 0.85rem;
}
.replace-list button { padding: 2px 8px; font-size: 0.8rem; }

/* ---------- Editor de paleta ---------- */
.palette-list { display: flex; flex-direction: column; gap: 6px; max-height: 320px; overflow-y: auto; }
.pal-row {
  display: grid;
  grid-template-columns: auto auto 1fr auto;
  align-items: center;
  gap: 8px;
  background: var(--panel-2);
  border-radius: 6px;
  padding: 5px 8px;
}
.pal-row input[type="checkbox"] { width: 16px; height: 16px; accent-color: var(--accent-2); }
.pal-row .pal-code { font-family: monospace; font-weight: 700; font-size: 0.85rem; min-width: 26px; }
.pal-row .pal-name { color: var(--muted); font-size: 0.78rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pal-row input[type="color"] {
  width: 34px; height: 28px; padding: 0; border: 1px solid var(--line);
  border-radius: 5px; background: none; cursor: pointer;
}
.pal-row.disabled { opacity: 0.45; }

/* ---------- Saída / resultado ---------- */
.output {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.tabs {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 8px;
  border-bottom: 1px solid var(--line);
  background: var(--panel-2);
}
.tab {
  background: transparent;
  color: var(--muted);
  border: none;
  padding: 8px 12px;
  border-radius: 8px;
  font-weight: 600;
}
.tab.active { background: var(--accent); color: #1a1a1a; }
.zoom-controls { margin-left: auto; display: flex; gap: 4px; }
.zoom-controls button { background: var(--panel); color: var(--text); border: 1px solid var(--line); padding: 6px 10px; }

/* ---------- Barra de montagem ---------- */
.assembly-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  padding: 8px 10px;
  background: var(--panel-2);
  border-bottom: 1px solid var(--line);
}
.assembly-bar button {
  padding: 6px 9px;
  font-size: 0.85rem;
}
.assembly-bar .amode {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  white-space: nowrap;
}
.assembly-bar .amode input { width: 16px; height: 16px; accent-color: var(--accent); }
.asm-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
}
/* Toggle segmentado: Desenho todo | Linha por linha */
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.seg-btn {
  background: var(--panel);
  color: var(--muted);
  border: none;
  border-radius: 0;
  padding: 6px 10px;
}
.seg-btn.active { background: var(--accent); color: #1a1a1a; }
.asm-rownav { display: flex; align-items: center; gap: 6px; white-space: nowrap; }
.asm-rownav span { font-variant-numeric: tabular-nums; min-width: 64px; text-align: center; }
.asm-focus { display: flex; align-items: center; gap: 6px; white-space: nowrap; font-size: 0.85rem; color: var(--muted); }
.asm-focus select { width: auto; min-width: 120px; padding: 6px; }
.asm-progress { display: flex; align-items: center; gap: 8px; }
.asm-progress .bar {
  width: 120px; height: 8px; background: var(--panel); border: 1px solid var(--line);
  border-radius: 999px; overflow: hidden;
}
.asm-progress .bar span {
  display: block; height: 100%; width: 0%;
  background: var(--accent-2); transition: width 0.15s ease;
}
.asm-screen { margin-left: auto; display: flex; gap: 4px; }
.assembly-bar button.on { background: var(--accent); color: #1a1a1a; border-color: var(--accent); }
.viewport.locked { cursor: default; }
.viewport.locked .size-handle { display: none !important; }

.viewport {
  position: relative;
  height: 62vh;
  min-height: 320px;
  overflow: hidden;
  background:
    repeating-conic-gradient(#1b1b22 0% 25%, #20202a 0% 50%) 50% / 24px 24px;
  touch-action: none;
}
.canvas-pan {
  position: absolute;
  left: 0; top: 0;
  transform-origin: 0 0;
  will-change: transform;
}
.grid-canvas {
  display: block;
  image-rendering: pixelated;
  box-shadow: 0 0 0 1px rgba(255,255,255,0.06);
}
.placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--muted);
  pointer-events: none;
}

/* Badge com o tamanho atual da grade e a contagem de miçangas. */
.grid-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  z-index: 6;
  background: rgba(0, 0, 0, 0.66);
  border: 1px solid var(--line);
  color: #fff;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 6px 10px;
  border-radius: 8px;
  pointer-events: none;
  white-space: nowrap;
}
.grid-badge b { color: var(--accent); }
.grid-badge .beads { color: var(--accent-2); }
.grid-badge .cap { color: var(--muted); font-weight: 400; }

/* Alça para redimensionar a grade arrastando no preview (canto inferior-direito). */
.size-handle {
  position: absolute;
  z-index: 7;
  width: 28px;
  height: 28px;
  margin: -14px;
  background: var(--accent);
  border: 2px solid #1a1a1a;
  border-radius: 7px;
  cursor: nwse-resize;
  touch-action: none;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
}
.size-handle::after {
  content: '⤡';
  color: #1a1a1a;
  font-size: 16px;
  font-weight: 700;
  line-height: 1;
}
.size-handle:active { filter: brightness(1.1); }

/* ---------- Legenda ---------- */
.legend-wrap { padding: 12px 14px; border-top: 1px solid var(--line); }
.legend-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 8px; }
.legend-head h2 { font-size: 0.9rem; }
.legend {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 6px;
}
.legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--panel-2);
  border-radius: 6px;
  padding: 6px 8px;
}
.legend-item.focused { outline: 2px solid var(--accent); }
.legend-item .sw { width: 20px; height: 20px; border-radius: 4px; border: 1px solid rgba(255,255,255,0.2); flex: 0 0 auto; }

/* Tela cheia do molde (modo montagem no celular). */
.output:fullscreen { background: var(--bg); }
.output:fullscreen .viewport { height: 82vh; }
.legend-item .lc { font-family: monospace; font-weight: 700; }
.legend-item .ln { margin-left: auto; font-weight: 700; }

.busy { opacity: 0.6; pointer-events: none; }