/* Collage / Layout Maker, VOL.01 theme. Prefix `cl-`, root #collage. */

#collage {
  --outline: var(--line);
  color: var(--text);
  max-width: 1120px;
  margin: 0 auto;
  padding: clamp(10px, 2.2vmin, 22px) 16px 20px;
}

#collage .cl-hero { text-align: center; margin-bottom: clamp(14px, 2.8vmin, 24px); }
#collage .cl-hero h1 {
  margin: 0 0 8px;
  font-size: clamp(1.7rem, 5.4vmin, 2.9rem);
  font-weight: 800; letter-spacing: 0.05em; text-transform: uppercase; color: #ededed;
  text-shadow: -0.7px 0 rgba(255, 0, 70, 0.5), 0.7px 0 rgba(0, 235, 220, 0.45);
}
#collage .lead-answer {
  color: var(--muted); font-size: clamp(0.82rem, 1.6vmin, 0.98rem);
  line-height: 1.55; max-width: 680px; margin: 0 auto;
}

#collage .cl-editor {
  display: grid;
  grid-template-columns: 1fr minmax(250px, 330px);
  gap: clamp(16px, 2.6vmin, 30px);
  background: var(--panel);
  border: 1px solid var(--outline);
  border-radius: 16px;
  padding: clamp(16px, 2.6vmin, 26px);
}

/* stage */
#collage .cl-stage { display: flex; flex-direction: column; gap: 14px; min-width: 0; }
#collage .cl-canvas-wrap {
  position: relative;
  display: grid; place-items: center;
  border-radius: 12px;
  border: 1px solid var(--outline);
  background-color: #141414;
  background-image:
    linear-gradient(45deg, #1c1c1c 25%, transparent 25%),
    linear-gradient(-45deg, #1c1c1c 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #1c1c1c 75%),
    linear-gradient(-45deg, transparent 75%, #1c1c1c 75%);
  background-size: 22px 22px;
  background-position: 0 0, 0 11px, 11px -11px, -11px 0;
  padding: 12px;
  min-height: 240px;
  overflow: hidden;
}
#collage .cl-canvas-wrap.drag { border-color: var(--accent); box-shadow: inset 0 0 0 2px var(--accent); }
#collage #clCanvas {
  display: block; max-width: 100%; max-height: 62vh; width: auto; height: auto;
  border-radius: 6px; cursor: pointer; touch-action: none;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}
#collage .cl-empty-hint {
  position: absolute; left: 50%; bottom: 16px; transform: translateX(-50%);
  font-size: 12px; color: var(--muted); background: rgba(6, 6, 6, 0.7);
  padding: 5px 12px; border-radius: 999px; pointer-events: none; backdrop-filter: blur(2px);
}
#collage .cl-empty-hint[hidden] { display: none; }

#collage .cl-actions { display: flex; gap: 10px; flex-wrap: wrap; }
#collage .cl-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: var(--tile); color: #d7d7d7; border: 1px solid var(--outline);
  border-radius: 11px; padding: 11px 16px; font-size: 12px; font-weight: 700; letter-spacing: 0.04em;
  cursor: pointer; transition: border-color 0.15s ease, color 0.15s ease, transform 0.15s ease, filter 0.15s ease;
}
#collage .cl-btn:hover { border-color: var(--line-hover); color: #fff; }
#collage .cl-btn-primary {
  flex: 1; background: var(--accent); color: #0a0a0a; border-color: var(--accent);
  text-transform: uppercase; font-weight: 800;
}
#collage .cl-btn-primary:hover { transform: translateY(-1px); filter: brightness(1.08); color: #0a0a0a; }
#collage .cl-btn-primary:disabled { opacity: 0.55; cursor: default; transform: none; }
#collage .cl-btn-primary svg { width: 16px; height: 16px; stroke: #0a0a0a; fill: none; stroke-width: 2.2; }

/* controls */
#collage .cl-controls { display: flex; flex-direction: column; gap: 18px; min-width: 0; }
#collage .cl-group-title {
  font-size: 11px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--muted); margin: 0 0 10px; display: flex; align-items: baseline; gap: 8px;
}

/* collapsible groups: the header toggles the group open/closed */
#collage .cl-group > .cl-group-title {
  cursor: pointer; user-select: none; align-items: center;
  padding: 2px 0; transition: color 0.15s ease;
}
#collage .cl-group > .cl-group-title:hover { color: #ededed; }
#collage .cl-group > .cl-group-title::after {
  content: ""; flex: none; margin-left: auto;
  width: 8px; height: 8px;
  border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg); transition: transform 0.22s ease; opacity: 0.8;
}
#collage .cl-group.collapsed > .cl-group-title { margin-bottom: 0; }
#collage .cl-group.collapsed > .cl-group-title::after { transform: rotate(-45deg); }
#collage .cl-group.collapsed > :not(.cl-group-title) { display: none; }
@media (prefers-reduced-motion: reduce) { #collage .cl-group > .cl-group-title::after { transition: none; } }

#collage .cl-seg { display: inline-flex; flex-wrap: wrap; border: 1px solid var(--outline); border-radius: 9px; overflow: hidden; }
#collage .cl-seg button {
  background: transparent; border: none; border-right: 1px solid var(--outline); cursor: pointer;
  color: var(--muted); font-size: 11.5px; font-weight: 700; padding: 8px 12px; transition: all 0.15s ease;
}
#collage .cl-seg button:last-child { border-right: none; }
#collage .cl-seg button:hover { color: #fff; }
#collage .cl-seg button.on { background: var(--accent); color: #0a0a0a; }

/* layout thumbnails */
#collage .cl-layouts { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
#collage .cl-layout {
  aspect-ratio: 1 / 1; padding: 0; cursor: pointer;
  background: var(--tile); border: 1px solid var(--outline); border-radius: 9px;
  display: grid; place-items: center; transition: border-color 0.15s ease, transform 0.12s ease;
}
#collage .cl-layout:hover { border-color: var(--line-hover); transform: translateY(-1px); }
#collage .cl-layout.on { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
#collage .cl-mini { position: relative; width: 68%; height: 68%; }
#collage .cl-mini i {
  position: absolute; background: rgba(255, 255, 255, 0.22); border: 1px solid rgba(0, 0, 0, 0.5);
  box-sizing: border-box;
}
#collage .cl-layout.on .cl-mini i { background: rgba(255, 60, 60, 0.55); }

/* sliders */
#collage input[type="range"] {
  -webkit-appearance: none; appearance: none; width: 100%; height: 4px; border-radius: 999px;
  background: var(--outline); outline: none;
}
#collage input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none; width: 16px; height: 16px; border-radius: 50%;
  background: var(--accent); cursor: pointer; border: 2px solid #0a0a0a;
}
#collage input[type="range"]::-moz-range-thumb {
  width: 16px; height: 16px; border-radius: 50%; background: var(--accent); cursor: pointer; border: 2px solid #0a0a0a;
}
#collage .cl-slider { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
#collage .cl-slider label {
  flex: none; width: 74px; font-size: 10px; font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--muted);
}
#collage .cl-row { display: flex; align-items: center; gap: 12px; }
#collage .cl-row label { flex: none; width: 74px; font-size: 10px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }

/* selected-cell tools */
#collage .cl-celltools {
  border: 1px solid var(--line-hover); border-radius: 12px; padding: 13px;
  background: rgba(255, 60, 60, 0.05);
}
#collage .cl-celltools[hidden] { display: none; }
#collage .cl-celltools .cl-ct-title { color: #ededed; }
#collage .cl-ct-btns { display: flex; gap: 8px; margin-top: 4px; }
#collage .cl-ct-btns .cl-btn { flex: 1; padding: 8px 10px; }

/* colour swatch */
#collage .cl-custom {
  position: relative; width: 28px; height: 28px; flex: none; border-radius: 8px; overflow: hidden;
  border: 2px solid rgba(255, 255, 255, 0.18); cursor: pointer;
}
#collage .cl-custom input { position: absolute; inset: -8px; width: 200%; height: 200%; border: none; cursor: pointer; opacity: 0; }

#collage select {
  width: 100%; background: var(--tile); color: var(--text); border: 1px solid var(--outline);
  border-radius: 9px; padding: 9px 12px; font: inherit; font-size: 13px; cursor: pointer;
}
#collage select:hover { border-color: var(--line-hover); }

/* highlight toggle row (its own line so nothing overlaps the outline row) */
#collage .cl-hlrow { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
#collage .cl-check {
  display: flex; align-items: center; gap: 9px;
  font-size: 12.5px; color: #cfcfcf; cursor: pointer; user-select: none;
}
#collage .cl-check input { accent-color: var(--accent); width: 16px; height: 16px; flex: none; cursor: pointer; margin: 0; }

/* text tools */
#collage .cl-textarea {
  width: 100%; box-sizing: border-box; background: var(--tile); color: var(--text);
  border: 1px solid var(--outline); border-radius: 9px; padding: 8px 10px;
  font: inherit; font-size: 13px; line-height: 1.4; resize: vertical; min-height: 42px;
}
#collage .cl-textarea:focus { outline: none; border-color: var(--line-hover); }
/* smaller buttons inside the cell/text tool panels only */
#collage .cl-celltools .cl-btn { padding: 8px 11px; border-radius: 9px; }
#collage .cl-celltools .cl-btn.on { background: var(--accent); color: #0a0a0a; border-color: var(--accent); }
#collage .cl-seg button[data-al] { min-width: 32px; font-weight: 800; }

/* sub-label inside a tool panel */
#collage .cl-sub { margin: 12px 0 8px; font-size: 10px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }

/* filter chips */
#collage .cl-chips { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
#collage .cl-chip {
  background: var(--tile); border: 1px solid var(--outline); color: #cfcfcf;
  border-radius: 999px; padding: 5px 11px; font-size: 11px; font-weight: 700; cursor: pointer;
  transition: all 0.15s ease;
}
#collage .cl-chip:hover { border-color: var(--line-hover); color: #fff; }
#collage .cl-chip.on { background: var(--accent); color: #0a0a0a; border-color: var(--accent); }

/* emoji sticker palette */
#collage .cl-stickers { display: grid; grid-template-columns: repeat(6, 1fr); gap: 6px; margin-top: 10px; }
#collage .cl-sticker {
  aspect-ratio: 1 / 1; display: grid; place-items: center;
  background: var(--tile); border: 1px solid var(--outline); border-radius: 9px;
  font-size: 18px; line-height: 1; cursor: pointer; transition: border-color 0.15s ease, transform 0.12s ease;
}
#collage .cl-sticker:hover { border-color: var(--line-hover); transform: translateY(-1px); }

/* gradient preset swatches */
#collage .cl-grads { display: grid; grid-template-columns: repeat(8, 1fr); gap: 6px; margin-top: 10px; }
#collage .cl-grad { aspect-ratio: 1 / 1; border: 1px solid rgba(255,255,255,0.12); border-radius: 7px; cursor: pointer; padding: 0; transition: transform 0.12s ease, border-color 0.12s ease; }
#collage .cl-grad:hover { transform: translateY(-1px); border-color: #fff; }

@media (max-width: 820px) {
  #collage .cl-editor { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  #collage { padding-left: 12px; padding-right: 12px; overflow-x: hidden; }
  #collage .cl-hero h1 { font-size: clamp(1.35rem, 7vmin, 1.9rem); }
  #collage .cl-layouts { grid-template-columns: repeat(4, 1fr); }
}