/* ============================================================
   Class2Class — The Sketchpad
   A tiny drawing canvas that mounts into #designstudio on the
   Graphic & Content Designer post. Self-contained, no deps.
   All selectors are scoped under .dstudio so nothing leaks into
   the host page. Colours fall back to literals if the brand
   tokens aren't present.
   ============================================================ */
.dstudio {
  --d-paper: var(--paper-2, #efe7f7);
  --d-ink: var(--c2c-ink, #3d3a40);
  --d-ink-soft: #5b565f;
  --d-purple: var(--c2c-purple, #8157d9);
  --d-deep: var(--c2c-deep-purple, #53389e);
  --d-line: var(--line, #d8cfc2);
  --d-green: var(--c2c-success, #12b76a);
  --d-canvas: #fffdf9;
  --d-body: var(--c2c-font, 'Open Sans', -apple-system, BlinkMacSystemFont, sans-serif);
  --d-display: var(--display, 'Open Sans', -apple-system, BlinkMacSystemFont, sans-serif);

  position: relative;
  background: var(--d-paper);
  border: 1.5px solid var(--d-line);
  border-radius: 20px;
  padding: 18px 18px 16px;
  box-shadow: 0 26px 64px -36px rgba(83, 56, 158, 0.55);
  display: flex;
  flex-direction: column;
  gap: 13px;
  overflow: hidden;
  font-family: var(--d-body);
  color: var(--d-ink);
}
.dstudio::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(120% 80% at 100% 0%, rgba(129, 87, 217, 0.12), transparent 58%);
}
.dstudio > * {
  position: relative;
}

/* ---------- header ---------- */
.ds-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.ds-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--d-deep);
}
.ds-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--d-green);
  animation: dsPulse 1.8s ease-in-out infinite;
}
@keyframes dsPulse {
  0%,
  100% {
    box-shadow: 0 0 0 3px rgba(18, 183, 106, 0.2);
  }
  50% {
    box-shadow: 0 0 0 7px rgba(18, 183, 106, 0.04);
  }
}
.ds-meta {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--d-ink-soft);
}

/* ---------- prompt ---------- */
.ds-prompt {
  font-family: var(--d-display);
  font-weight: 480;
  font-size: clamp(1rem, 1.7vw, 1.18rem);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--d-ink);
}

/* ---------- canvas stage ---------- */
.ds-stage {
  position: relative;
  width: 100%;
  aspect-ratio: 8 / 5;
  border-radius: 14px;
  overflow: hidden;
  border: 1.5px solid var(--d-line);
  background: var(--d-canvas);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.7);
}
.ds-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  cursor: crosshair;
  touch-action: none; /* let us draw with a finger without scrolling the page */
}
.ds-empty {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 18px;
  pointer-events: none;
  color: #9b93a6;
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: opacity 0.3s ease;
}
.ds-empty .ds-empty-ic {
  display: block;
  width: 30px;
  height: 30px;
  margin: 0 auto 8px;
  color: #c3b9d4;
}
.dstudio.is-drawn .ds-empty {
  opacity: 0;
}

/* ---------- tools ---------- */
.ds-tools {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
}
.ds-group {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.ds-group + .ds-group {
  padding-left: 14px;
  border-left: 1px solid var(--d-line);
}
.ds-swatch {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.9);
  box-shadow: 0 0 0 1.5px var(--d-line);
  cursor: pointer;
  padding: 0;
  transition:
    transform 0.18s ease,
    box-shadow 0.18s ease;
}
.ds-swatch:hover {
  transform: translateY(-2px) scale(1.06);
}
.ds-swatch[aria-pressed='true'] {
  box-shadow:
    0 0 0 2px var(--d-canvas),
    0 0 0 4px var(--d-deep);
  transform: translateY(-1px) scale(1.04);
}
.ds-size {
  width: 30px;
  height: 30px;
  border-radius: 9px;
  border: 1.5px solid var(--d-line);
  background: rgba(255, 255, 255, 0.55);
  cursor: pointer;
  display: grid;
  place-items: center;
  transition:
    border-color 0.18s ease,
    background 0.18s ease,
    transform 0.18s ease;
}
.ds-size:hover {
  border-color: var(--d-purple);
  transform: translateY(-1px);
}
.ds-size i {
  display: block;
  border-radius: 50%;
  background: var(--d-ink);
}
.ds-size[data-size='fine'] i {
  width: 4px;
  height: 4px;
}
.ds-size[data-size='medium'] i {
  width: 8px;
  height: 8px;
}
.ds-size[data-size='bold'] i {
  width: 13px;
  height: 13px;
}
.ds-size[aria-pressed='true'] {
  border-color: var(--d-purple);
  background: var(--d-purple);
}
.ds-size[aria-pressed='true'] i {
  background: #fff;
}
.ds-util {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--d-body);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--d-ink-soft);
  background: rgba(255, 255, 255, 0.55);
  border: 1.5px solid var(--d-line);
  border-radius: 9px;
  padding: 6px 11px;
  cursor: pointer;
  transition:
    color 0.18s ease,
    background 0.18s ease,
    border-color 0.18s ease,
    transform 0.18s ease;
}
.ds-util svg {
  width: 15px;
  height: 15px;
  flex: none;
}
.ds-util:hover:not(:disabled) {
  border-color: var(--d-purple);
  color: var(--d-deep);
  transform: translateY(-1px);
}
.ds-util[aria-pressed='true'] {
  color: #fff;
  background: var(--d-purple);
  border-color: var(--d-purple);
}
.ds-util:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

/* ---------- actions ---------- */
.ds-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 2px;
}
.ds-btn {
  flex: 1 1 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--d-body);
  font-weight: 700;
  font-size: 0.84rem;
  border-radius: 100px;
  padding: 0.7em 1.1em;
  cursor: pointer;
  border: 1.5px solid var(--d-line-strong, #2c2930);
  background: transparent;
  color: var(--d-ink);
  transition:
    transform 0.25s ease,
    box-shadow 0.25s ease,
    background 0.25s ease,
    color 0.25s ease,
    border-color 0.25s ease;
}
.ds-btn svg {
  width: 16px;
  height: 16px;
  flex: none;
}
.ds-btn:hover {
  transform: translateY(-2px);
}
.ds-btn-primary {
  background: var(--d-purple);
  border-color: var(--d-purple);
  color: #fff;
  box-shadow: 0 12px 26px -14px rgba(129, 87, 217, 0.8);
}
.ds-btn-primary:hover {
  background: var(--d-deep);
  border-color: var(--d-deep);
}
.ds-btn-primary.is-attached {
  background: var(--d-green);
  border-color: var(--d-green);
}
.ds-btn:focus-visible,
.ds-swatch:focus-visible,
.ds-size:focus-visible,
.ds-util:focus-visible {
  outline: 2.5px solid var(--d-purple);
  outline-offset: 2px;
}

/* ---------- footer hint ---------- */
.ds-foot {
  font-size: 0.74rem;
  line-height: 1.45;
  color: var(--d-ink-soft);
}
.ds-foot b {
  color: var(--d-ink);
  font-weight: 700;
}

@media (max-width: 680px) {
  .dstudio {
    padding: 15px 15px 14px;
  }
  .ds-group {
    gap: 9px;
  }
  .ds-group + .ds-group {
    padding-left: 10px;
  }
  /* bigger, finger-friendly hit areas on touch (~80% of our users are mobile) */
  .ds-swatch {
    width: 34px;
    height: 34px;
  }
  .ds-size {
    width: 40px;
    height: 40px;
  }
  .ds-util {
    padding: 9px 12px;
  }
}

/* honour reduced motion: still drawing, just no pulse / lift */
@media (prefers-reduced-motion: reduce) {
  .ds-dot {
    animation: none !important;
  }
  .dstudio *,
  .dstudio *::before {
    transition: none !important;
  }
}