/* ============================================================
   MERCH STUDIO — /css/merch-studio.css
   Full canvas-based merchandise design editor overlay.
   Depends on CSS variables defined in styles.css.
   ============================================================ */

/* ---- overlay ------------------------------------------------ */
.ms-overlay {
  position: fixed;
  top: 56px;
  bottom: 60px;
  left: 0;
  right: 0;
  z-index: 26;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s ease;
}
.ms-overlay.open {
  opacity: 1;
  pointer-events: all;
}
body.has-rail .ms-overlay {
  left: 64px;
}

/* ---- top bar ------------------------------------------------ */
.ms-topbar {
  height: 48px;
  flex: 0 0 48px;
  display: flex;
  align-items: center;
  gap: 0;
  padding: 0 12px;
  border-bottom: 1px solid var(--line);
  overflow-x: auto;
  overflow-y: hidden;
  white-space: nowrap;
  scrollbar-width: none;
  background: var(--bg-2);
  position: relative;
}
.ms-topbar::-webkit-scrollbar { display: none; }

.ms-topbar-group {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}
.ms-topbar-sep {
  width: 1px;
  height: 24px;
  background: var(--line);
  margin: 0 10px;
  flex-shrink: 0;
}
.ms-topbar-spacer { flex: 1; }

.ms-topbar-title {
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-right: 8px;
  flex-shrink: 0;
}

.ms-close-btn {
  flex-shrink: 0;
  background: none;
  border: 1px solid var(--line);
  color: var(--fg);
  border-radius: 6px;
  padding: 4px 10px;
  font: 600 .8rem/1 'Space Grotesk', sans-serif;
  cursor: pointer;
  transition: background .12s, color .12s;
}
.ms-close-btn:hover { background: var(--line); }

/* ---- product tabs ------------------------------------------ */
.ms-product-tab,
.ms-area-tab {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 10px;
  border-radius: 6px;
  border: 1px solid transparent;
  background: none;
  color: var(--fg-dim);
  font: 500 .78rem/1 'Space Grotesk', sans-serif;
  cursor: pointer;
  white-space: nowrap;
  transition: background .12s, color .12s, border-color .12s;
}
.ms-product-tab:hover,
.ms-area-tab:hover {
  background: rgba(255,255,255,.06);
  color: var(--fg);
}
.ms-product-tab.active,
.ms-area-tab.active {
  background: rgba(255,215,0,.1);
  border-color: rgba(255,215,0,.35);
  color: var(--accent);
  font-weight: 700;
}
.ms-product-tab .emoji { font-size: .9rem; }

/* ---- body -------------------------------------------------- */
.ms-body {
  flex: 1;
  display: flex;
  flex-direction: row;
  overflow: hidden;
}

/* ---- panels ------------------------------------------------ */
.ms-left,
.ms-right {
  flex: 0 0 260px;
  width: 260px;
  overflow-y: auto;
  overflow-x: hidden;
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 0;
  scrollbar-width: thin;
  scrollbar-color: var(--line) transparent;
}
.ms-right {
  border-right: none;
  border-left: 1px solid var(--line);
  flex: 0 0 280px;
  width: 280px;
}
.ms-left::-webkit-scrollbar,
.ms-right::-webkit-scrollbar { width: 4px; }
.ms-left::-webkit-scrollbar-thumb,
.ms-right::-webkit-scrollbar-thumb { background: var(--line); border-radius: 2px; }

/* ---- canvas column ----------------------------------------- */
.ms-canvas-col {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: color-mix(in srgb, var(--bg) 80%, var(--bg-2));
  position: relative;
}

.ms-canvas-wrap {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: crosshair;
}
.ms-canvas-wrap canvas {
  display: block;
  border-radius: 4px;
  box-shadow: 0 4px 32px rgba(0,0,0,.6);
  max-width: 100%;
}

/* ---- collapsible sections ---------------------------------- */
.ms-section {
  border-bottom: 1px solid var(--line);
  flex-shrink: 0;
}
.ms-section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  cursor: pointer;
  user-select: none;
  font: 600 .73rem/1 'Space Grotesk', sans-serif;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--fg-dim);
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  transition: color .12s, background .12s;
}
.ms-section-head:hover { color: var(--fg); background: rgba(255,255,255,.03); }
.ms-section-head .ms-chevron {
  font-size: .7rem;
  transition: transform .18s;
  color: var(--muted);
}
.ms-section.collapsed .ms-chevron { transform: rotate(-90deg); }
.ms-section-body {
  padding: 0 12px 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.ms-section.collapsed .ms-section-body { display: none; }

/* ---- form controls ----------------------------------------- */
.ms-label {
  font: 500 .66rem/1 'JetBrains Mono', monospace;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
  display: block;
  margin-bottom: 4px;
}
.ms-input,
.ms-select,
.ms-textarea {
  width: 100%;
  box-sizing: border-box;
  padding: 7px 9px;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--fg);
  border-radius: 6px;
  font: 400 .82rem/1.4 'Space Grotesk', sans-serif;
  transition: border-color .12s;
  outline: none;
}
.ms-input:focus,
.ms-select:focus,
.ms-textarea:focus { border-color: var(--accent); }
.ms-textarea { min-height: 64px; resize: vertical; }
.ms-select { cursor: pointer; }

.ms-range {
  width: 100%;
  accent-color: var(--accent);
  cursor: pointer;
}
.ms-color-row {
  display: flex;
  align-items: center;
  gap: 8px;
}
.ms-color-row input[type=color] {
  width: 36px;
  height: 32px;
  border: 1px solid var(--line);
  background: none;
  border-radius: 6px;
  cursor: pointer;
  padding: 2px;
  flex-shrink: 0;
}
.ms-color-hex {
  flex: 1;
  font: 400 .78rem/1 'JetBrains Mono', monospace;
  color: var(--muted);
}

.ms-btn-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.ms-btn {
  padding: 6px 12px;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.04);
  color: var(--fg);
  font: 600 .74rem/1 'Space Grotesk', sans-serif;
  letter-spacing: .06em;
  cursor: pointer;
  transition: background .12s, border-color .12s, color .12s;
  white-space: nowrap;
  flex-shrink: 0;
}
.ms-btn:hover { background: rgba(255,255,255,.1); border-color: var(--fg-dim); }
.ms-btn.primary {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}
.ms-btn.primary:hover { background: color-mix(in srgb, var(--accent) 85%, #fff); }
.ms-btn.danger { border-color: var(--red); color: var(--red); }
.ms-btn.danger:hover { background: rgba(200,16,46,.12); }
.ms-btn.active-toggle {
  background: rgba(255,215,0,.12);
  border-color: rgba(255,215,0,.4);
  color: var(--accent);
}
.ms-btn[disabled] { opacity: .4; pointer-events: none; }

.ms-align-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
}

/* ---- slogan chips ------------------------------------------ */
.ms-slogan-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-height: 180px;
  overflow-y: auto;
  scrollbar-width: thin;
}
.ms-slogan-chip {
  padding: 6px 10px;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: rgba(255,215,0,.04);
  color: var(--fg);
  font: 500 .78rem/1.3 'Space Grotesk', sans-serif;
  cursor: pointer;
  text-align: left;
  transition: background .12s, border-color .12s;
  white-space: normal;
  word-break: break-word;
}
.ms-slogan-chip:hover {
  background: rgba(255,215,0,.12);
  border-color: rgba(255,215,0,.4);
  color: var(--accent);
}

/* ---- layer list -------------------------------------------- */
.ms-layer-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 0;
  margin: 0;
  list-style: none;
}
.ms-layer-row {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 8px;
  border-radius: 6px;
  border: 1px solid transparent;
  cursor: pointer;
  font: 500 .78rem/1 'Space Grotesk', sans-serif;
  color: var(--fg-dim);
  transition: background .1s, border-color .1s, color .1s;
  user-select: none;
}
.ms-layer-row:hover { background: rgba(255,255,255,.04); color: var(--fg); }
.ms-layer-row.active {
  background: rgba(255,215,0,.08);
  border-color: rgba(255,215,0,.3);
  color: var(--accent);
}
.ms-layer-icon { flex-shrink: 0; font-size: .85rem; }
.ms-layer-label { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ms-layer-moves { display: flex; gap: 2px; flex-shrink: 0; }
.ms-layer-moves button {
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 3px;
  font-size: .72rem;
  line-height: 1;
  transition: color .1s, background .1s;
}
.ms-layer-moves button:hover { color: var(--fg); background: rgba(255,255,255,.08); }

/* ---- controls grid ----------------------------------------- */
.ms-controls {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.ms-control-row {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.ms-slider-val {
  font: 600 .7rem/1 'JetBrains Mono', monospace;
  color: var(--muted);
  text-align: right;
}
.ms-no-layer {
  padding: 20px 12px;
  color: var(--muted);
  font-size: .8rem;
  text-align: center;
  line-height: 1.5;
}

/* ---- status bar -------------------------------------------- */
.ms-status {
  position: absolute;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0,0,0,.75);
  color: var(--fg);
  font: 500 .72rem/1 'JetBrains Mono', monospace;
  padding: 4px 12px;
  border-radius: 99px;
  border: 1px solid var(--line);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity .2s;
  z-index: 2;
}
.ms-status.visible { opacity: 1; }

/* ---- vault modal ------------------------------------------- */
.ms-vault-modal {
  position: fixed;
  inset: 0;
  z-index: 40;
  background: rgba(0,0,0,.72);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity .18s;
}
.ms-vault-modal.open {
  opacity: 1;
  pointer-events: all;
}
.ms-vault-inner {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg, 14px);
  width: min(700px, 96vw);
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 8px 48px rgba(0,0,0,.7);
}
.ms-vault-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  flex-shrink: 0;
}
.ms-vault-head h3 {
  margin: 0;
  font: 700 .95rem/1 'Bebas Neue', sans-serif;
  letter-spacing: .12em;
}
.ms-vault-body {
  flex: 1;
  overflow-y: auto;
  padding: 14px;
  scrollbar-width: thin;
}
.ms-vault-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: 8px;
}
.ms-vault-item {
  border-radius: 8px;
  border: 2px solid transparent;
  overflow: hidden;
  cursor: pointer;
  background: var(--bg);
  transition: border-color .12s, transform .12s;
  aspect-ratio: 1;
}
.ms-vault-item:hover { border-color: var(--accent); transform: scale(1.03); }
.ms-vault-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.ms-vault-empty {
  padding: 32px;
  text-align: center;
  color: var(--muted);
  font-size: .85rem;
}

/* ---- push section ------------------------------------------ */
.ms-push-section {
  background: rgba(255,215,0,.03);
  border: 1px solid rgba(255,215,0,.12);
  border-radius: 8px;
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.ms-push-title {
  font: 700 .7rem/1 'JetBrains Mono', monospace;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent);
}

/* ---- misc -------------------------------------------------- */
.ms-divider {
  height: 1px;
  background: var(--line);
  margin: 2px 0;
}
.ms-empty-hint {
  padding: 24px 12px;
  text-align: center;
  color: var(--muted);
  font-size: .82rem;
  line-height: 1.6;
}

/* ---- mobile ------------------------------------------------ */
@media (max-width: 768px) {
  .ms-overlay {
    top: 56px;
    bottom: 0;
    left: 0 !important;
    flex-direction: column;
  }
  .ms-body {
    flex-direction: column;
    overflow-y: auto;
  }
  .ms-left,
  .ms-right {
    flex: 0 0 auto;
    width: 100%;
    border-right: none;
    border-left: none;
    border-bottom: 1px solid var(--line);
    max-height: none;
    overflow-y: visible;
  }
  .ms-canvas-col {
    flex: 0 0 auto;
    padding: 16px;
  }
  .ms-topbar {
    height: auto;
    flex: 0 0 auto;
    padding: 8px 10px;
    flex-wrap: wrap;
    gap: 4px;
  }
}