.subtitle { font-size: 12px; color: var(--ink-light); font-weight: 300; letter-spacing: 0.1em; border-left: 2px solid var(--accent); padding-left: 10px; }
    .panel-header { padding:10px 16px; border-bottom:1px solid var(--border); background:var(--bg); display:flex; justify-content:space-between; align-items:center; gap:12px; }
    .panel-label { font-size:10px; letter-spacing:.2em; color:var(--ink-light); text-transform:uppercase; }
    .panel-body { padding:18px; }
    .hidden { display:none !important; }
    .preview-area {
      padding: 18px;
      display: flex;
      justify-content: center;
      align-items: center;
      min-height: 480px;
      background: linear-gradient(180deg, #FBFBFC 0%, #F3F4F6 100%);
    }
    #canvas {
      width: 100%;
      max-width: 100%;
      height: auto;
      display: block;
      background: #fff;
      border: 1px solid var(--border);
      box-shadow: 0 12px 32px rgba(0,0,0,0.08);
    }
    .sidebar-section + .sidebar-section { border-top: 1px solid var(--border); }
    .toolbar-note {
      margin-top: 10px;
      color: var(--ink-light);
      font-size: 12px;
      line-height: 1.7;
    }
    .ctrl-stack {
      display: flex;
      flex-direction: column;
      gap: 8px;
      margin-top: 8px;
    }
    .compact-row {
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .range-input {
      width: 100%;
    }
    .range-value {
      min-width: 54px;
      text-align: right;
      font-size: 12px;
      color: var(--ink-light);
      font-variant-numeric: tabular-nums;
    }
    .asset-actions,
    .panel-actions {
      display: flex;
      gap: 8px;
      align-items: center;
      flex-wrap: wrap;
    }
    .upload-btn,
    .ghost-btn,
    .mini-btn {
      border: 1px solid var(--border);
      background: #fff;
      color: var(--ink);
      border-radius: 6px;
      padding: 9px 12px;
      font-size: 12px;
      font-weight: 700;
      letter-spacing: .04em;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 36px;
      text-decoration: none;
    }
    .upload-btn:hover,
    .ghost-btn:hover,
    .mini-btn:hover { border-color: var(--blue); color: var(--blue); background: var(--blue-light); }
    .asset-name {
      font-size: 12px;
      color: var(--ink-light);
      line-height: 1.5;
      word-break: break-all;
      margin-top: 8px;
    }
    .fmt-group + .fmt-group { margin-top: 14px; }
    .fmt-group-label {
      display: block;
      font-size: 12px;
      color: var(--ink-light);
      margin-bottom: 8px;
    }
    .fmt-row.wrap {
      display: flex;
      gap: 6px;
      flex-wrap: wrap;
    }
    .fmt-row.wrap .fmt-btn {
      flex: 1 1 92px;
      min-width: 92px;
      max-width: 100%;
      white-space: nowrap;
    }
    .text-input,
    .textarea-input {
      font-weight: 400;
    }
    .textarea-input.large {
      min-height: 110px;
    }
    .font-select {
      width: 100%;
      min-height: 44px;
      border: 1px solid var(--border);
      border-radius: 10px;
      background: #fff;
      color: var(--ink);
      padding: 0 12px;
      font-size: 14px;
      font-weight: 500;
      outline: none;
      cursor: pointer;
      appearance: none;
    }
    .font-select:focus {
      border-color: var(--blue);
      background: #fff;
    }
    .font-select option {
      font-size: 14px;
      padding: 6px 10px;
    }
    .font-select optgroup {
      font-family: var(--sans);
      font-size: 11px;
      color: var(--ink-light);
    }
    .color-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 10px;
    }
    .color-chip-label {
      min-width: 48px;
      font-size: 12px;
      color: var(--ink-light);
    }
    .notice-box {
      margin-top: 10px;
      border: 1px solid var(--border);
      background: #fff;
      border-radius: 6px;
      padding: 10px 12px;
      font-size: 12px;
      line-height: 1.7;
      color: var(--ink-light);
    }
    .toolbar-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 8px;
      margin-top: 10px;
    }
    .toolbar-grid .mini-btn { width: 100%; }
    .download-btn {
      white-space: nowrap;
    }
    .small-switch {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 12px;
      color: var(--ink-light);
    }

    .workspace { align-items: flex-start; }
    .panel { position: sticky; top: 18px; align-self: flex-start; }
    .ogp-sidebar { padding: 0; overflow: hidden; }
    .ogp-tabs {
      display: grid;
      grid-template-columns: repeat(5, minmax(0, 1fr));
      gap: 0;
      border-bottom: 1px solid var(--border);
      background: #fff;
      position: sticky;
      top: 0;
      z-index: 2;
    }
    .ogp-tab-btn {
      border: none;
      border-right: 1px solid var(--border);
      background: #fff;
      color: var(--ink-light);
      font-size: 12px;
      font-weight: 700;
      letter-spacing: .04em;
      min-height: 46px;
      cursor: pointer;
      padding: 0 8px;
    }
    .ogp-tab-btn:last-child { border-right: none; }
    .ogp-tab-btn.active {
      background: var(--blue-light);
      color: var(--blue);
      box-shadow: inset 0 -2px 0 var(--blue);
    }
    .ogp-tab-btn:hover { background: #F8FBFF; color: var(--blue); }
    .ogp-tab-panels { min-height: 520px; }
    .ogp-tab-panel { display: none; }
    .ogp-tab-panel.active { display: block; }
    .ogp-tab-panel .sidebar-section { border-top: none; }
    .ogp-tab-panel .sidebar-section + .sidebar-section { border-top: none; }
    .ogp-tab-panel .sidebar-section { padding-bottom: 4px; }
    @media (max-width: 900px) {
      .preview-area { min-height: 320px; padding: 12px; }
      .toolbar-grid { grid-template-columns: 1fr; }
      .panel { position: static; }
      .ogp-tabs { grid-template-columns: repeat(3, minmax(0, 1fr)); }
      .ogp-tab-panels { min-height: 0; }
    }
    @media (max-width: 560px) {
      .ogp-tabs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    }
  
    .panel-actions {
      justify-content: flex-end;
    }

    /* ── OGP preset button visual upgrade ── */
    #presetBtns .fmt-btn {
      position: relative;
      min-height: 42px;
      padding-left: 34px;
      text-align: left;
      overflow: hidden;
    }
    #presetBtns .fmt-btn::before {
      content: "";
      position: absolute;
      left: 10px;
      top: 50%;
      width: 16px;
      height: 16px;
      border-radius: 999px;
      transform: translateY(-50%);
      border: 1px solid rgba(0,0,0,0.12);
      background: var(--preset-chip, #ddd);
      box-shadow: inset 0 0 0 2px rgba(255,255,255,0.55);
    }
    #presetBtns .fmt-btn[data-preset="light"] { --preset-chip: linear-gradient(135deg, #F8FAFC, #2563EB); }
    #presetBtns .fmt-btn[data-preset="dark"] { --preset-chip: linear-gradient(135deg, #111827, #22C55E); }
    #presetBtns .fmt-btn[data-preset="mint"] { --preset-chip: linear-gradient(135deg, #ECFDF5, #10B981); }
    #presetBtns .fmt-btn[data-preset="sunset"] { --preset-chip: linear-gradient(135deg, #FFF7ED, #F97316); }
    #presetBtns .fmt-btn[data-preset="beige"] { --preset-chip: linear-gradient(135deg, #FAF7F2, #B08968); }
    #presetBtns .fmt-btn[data-preset="navy"] { --preset-chip: linear-gradient(135deg, #EAF2FF, #1D4ED8); }


    .range-input[disabled] {
      opacity: 0.55;
      cursor: not-allowed;
    }

    .placement-grid {
      display: grid;
      grid-template-columns: repeat(3, 42px);
      gap: 6px;
      align-items: center;
      justify-content: start;
      margin-top: 8px;
    }
    .placement-btn {
      width: 42px;
      height: 42px;
      border: 1px solid var(--border);
      border-radius: 8px;
      background: #fff;
      color: var(--ink);
      font-size: 16px;
      font-weight: 700;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }
    .placement-btn:hover {
      border-color: var(--blue);
      color: var(--blue);
      background: var(--blue-light);
    }
    .placement-btn.active {
      border-color: var(--blue);
      color: var(--blue);
      background: var(--blue-light);
      box-shadow: inset 0 0 0 1px var(--blue);
    }
    .range-input[disabled] {
      opacity: 0.55;
      cursor: not-allowed;
    }
    #downloadBtnSide {
      min-height: 36px;
      padding: 9px 12px;
      font-size: 12px;
      text-decoration: none;
    }

/* ============================================================
   Responsive fix: OGP finished pattern buttons
   ============================================================ */
#patternBtns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
}

#patternBtns .fmt-btn {
  width: 100%;
  min-width: 0;
  flex: initial;
  white-space: normal;
  overflow-wrap: anywhere;
  word-break: normal;
  line-height: 1.35;
  min-height: 44px;
  height: auto;
  padding: 8px 10px;
  text-align: center;
}

@media (max-width: 420px) {
  #patternBtns {
    grid-template-columns: 1fr;
  }
}



/* ============================================================
   OGP Image Maker spacing cleanup
   ============================================================ */
.ogp-sidebar .sidebar-section {
  padding: 16px;
}

.ogp-tab-panels {
  min-width: 0;
}

.ogp-tab-panel .sidebar-title {
  margin-bottom: 14px;
  line-height: 1.45;
}

.ogp-tab-panel .fmt-group {
  margin-top: 16px;
}

.ogp-tab-panel .fmt-group:first-child {
  margin-top: 0;
}

.ogp-tab-panel .ctrl-stack {
  gap: 12px;
}

.ogp-tab-panel .fmt-group-label {
  display: block;
  margin-bottom: 8px;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.ogp-tab-panel .compact-row {
  margin-top: 6px;
}

.ogp-tab-btn {
  white-space: nowrap;
  word-break: normal;
  overflow-wrap: normal;
  line-height: 1.25;
  padding-left: 4px;
  padding-right: 4px;
  letter-spacing: 0.02em;
  font-size: 11px;
}

.ogp-tab-panel .color-grid {
  gap: 10px;
  margin: 10px 0 16px;
}

.ogp-tab-panel .color-row {
  gap: 10px;
  flex-wrap: nowrap;
}

.ogp-tab-panel .color-chip-label {
  flex: 0 0 82px;
  min-width: 82px;
  line-height: 1.35;
}

.ogp-tab-panel .color-swatch {
  flex: 0 0 42px;
}

.ogp-tab-panel input.color-hex {
  flex: 0 1 86px;
  min-width: 0;
}

@media (max-width: 420px) {
  .ogp-sidebar .sidebar-section {
    padding: 14px;
  }

  .ogp-tab-panel .color-row {
    flex-wrap: wrap;
  }

  .ogp-tab-panel .color-chip-label {
    flex-basis: 100%;
    min-width: 100%;
  }
}