/* ── Sketch Tool ─────────────────────────────────────── */
.sk-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  z-index: 2000;
  align-items: center;
  justify-content: center;
}
.sk-overlay.active { display: flex; }

.sk-modal {
  background: var(--surface);
  border-radius: 16px;
  width: 92vw;
  max-width: 900px;
  height: 86vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 24px 64px rgba(0,0,0,0.35);
  overflow: hidden;
}

/* Header */
.sk-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-mid);
  flex-shrink: 0;
  gap: 12px;
}
.sk-header-left {
  display: flex;
  align-items: center;
  gap: 8px;
}
.sk-title {
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
}
.sk-close {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--muted);
  font-size: 20px;
  line-height: 1;
  padding: 2px 6px;
}
.sk-close:hover { color: var(--text); }

/* Toolbar */
.sk-toolbar {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border-soft);
  flex-shrink: 0;
  flex-wrap: wrap;
}
.sk-tool {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: none;
  cursor: pointer;
  color: var(--muted);
  font-size: 12px;
  font-family: 'DM Sans', sans-serif;
  transition: all 0.12s;
  flex-shrink: 0;
}
.sk-tool:hover { background: var(--bg); color: var(--text); border-color: var(--border-mid); }
.sk-tool.active { background: var(--teal-light); color: var(--teal); border-color: var(--teal); }

.sk-divider {
  width: 1px;
  height: 24px;
  background: var(--border-mid);
  margin: 0 4px;
  flex-shrink: 0;
}

.sk-colors {
  display: flex;
  gap: 5px;
  align-items: center;
}
.sk-color {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.1s;
  flex-shrink: 0;
}
.sk-color:hover { transform: scale(1.15); }
.sk-color.active { border-color: var(--text); transform: scale(1.15); }

.sk-size-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: 2px;
}
.sk-size-wrap label {
  font-size: 11px;
  color: var(--muted);
  font-family: 'DM Mono', monospace;
}
.sk-size {
  width: 60px;
  accent-color: var(--teal);
  cursor: pointer;
}

/* Hint bar */
.sk-hint {
  padding: 4px 16px;
  font-size: 11px;
  color: var(--muted);
  font-family: 'DM Mono', monospace;
  background: var(--bg);
  border-bottom: 1px solid var(--border-soft);
  min-height: 22px;
  flex-shrink: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Canvas area */
.sk-canvas-wrap {
  flex: 1;
  overflow: hidden;
  position: relative;
  background: #fff;
  cursor: crosshair;
}
#skCanvas {
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
}

/* Text input overlay */
.sk-text-input {
  position: absolute;
  border: 1.5px dashed var(--teal);
  background: rgba(255,255,255,0.95);
  padding: 3px 6px;
  font-family: 'DM Sans', sans-serif;
  font-size: 14px;
  color: #1a2b2b;
  outline: none;
  border-radius: 4px;
  min-width: 120px;
  min-height: 24px;
  display: none;
  z-index: 10;
  resize: none;
  overflow: hidden;
}

/* Footer */
.sk-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  border-top: 1px solid var(--border-mid);
  flex-shrink: 0;
  gap: 12px;
}
.sk-caption {
  flex: 1;
  padding: 7px 12px;
  border: 1px solid var(--border-mid);
  border-radius: 9px;
  font-family: 'DM Sans', sans-serif;
  font-size: 13px;
  color: var(--text);
  background: var(--bg);
  outline: none;
  transition: border-color 0.15s;
}
.sk-caption:focus { border-color: var(--teal); }
.sk-send {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 8px 18px;
  background: var(--teal);
  color: #fff;
  border: none;
  border-radius: 9px;
  font-family: 'DM Sans', sans-serif;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: opacity 0.15s;
  flex-shrink: 0;
}
.sk-send:hover { opacity: 0.85; }
.sk-send:disabled { opacity: 0.5; cursor: not-allowed; }

@media (max-width: 600px) {
  .sk-modal { height: 92vh; width: 98vw; border-radius: 12px; }
  .sk-footer { flex-wrap: wrap; }
  .sk-caption { min-width: 0; }
  .sk-hint { display: none; }
}