:root {
    --bg: #0d0d14;
    --panel: #13131f;
    --panel2: #1a1a2e;
    --border: #2a2a45;
    --accent: #c9a84c;
    --accent2: #e8c97a;
    --text: #e8e0d0;
    --text-dim: #8a8090;
    --radius: 12px;
  }

  * { box-sizing: border-box; margin: 0; padding: 0; }

  body {
    background: var(--bg);
    color: var(--text);
    font-family: 'Microsoft JhengHei', 'PingFang TC', 'Hiragino Sans GB', sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
  }

  body::before {
    content: '';
    position: fixed;
    inset: 0;
    background:
      radial-gradient(ellipse 60% 40% at 20% 20%, rgba(201,168,76,0.06) 0%, transparent 60%),
      radial-gradient(ellipse 50% 60% at 80% 80%, rgba(109,122,186,0.06) 0%, transparent 60%);
    pointer-events: none;
    z-index: 0;
  }

  header {
    position: relative;
    z-index: 10;
    padding: 18px 32px;
    border-bottom: 1px solid var(--border);
    background: rgba(13,13,20,0.9);
    backdrop-filter: blur(12px);
    display: flex;
    align-items: center;
    gap: 16px;
  }

  header h1 {
    font-family: 'Microsoft JhengHei', 'PingFang TC', serif;
    font-size: 1.1rem;
    color: var(--accent);
    letter-spacing: 0.08em;
    text-shadow: 0 0 20px rgba(201,168,76,0.4);
  }

  header .subtitle {
    font-size: 0.78rem;
    color: var(--text-dim);
    letter-spacing: 0.15em;
  }

  .dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 8px var(--accent);
    animation: pulse 2s ease-in-out infinite;
  }

  @keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.8); }
  }

  .main {
    position: relative;
    z-index: 1;
    flex: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    height: calc(100vh - 65px);
    overflow: hidden;
  }

  .left-panel {
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border);
    background: var(--panel);
    position: relative;
    overflow: visible;
  }

  .panel-header {
    padding: 14px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(26,26,46,0.5);
  }

  .panel-title {
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    color: var(--text-dim);
    text-transform: uppercase;
  }

  .color-toolbar {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    background: rgba(13,13,20,0.4);
  }

  .color-toolbar label {
    font-size: 0.7rem;
    color: var(--text-dim);
    letter-spacing: 0.1em;
    margin-right: 4px;
  }

  .preset-colors {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
  }

  .color-chip {
    width: 22px; height: 22px;
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.2s;
    position: relative;
  }

  .color-chip:hover {
    transform: scale(1.2);
    border-color: rgba(255,255,255,0.4);
  }

  .color-chip.active {
    border-color: white;
    box-shadow: 0 0 8px rgba(255,255,255,0.5);
  }

  .color-chip[title]::after {
    content: attr(title);
    position: absolute;
    bottom: 26px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0,0,0,0.85);
    color: white;
    font-size: 0.65rem;
    padding: 2px 6px;
    border-radius: 4px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
  }

  .color-chip:hover::after { opacity: 1; }

  .custom-color-wrap {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-left: 4px;
  }

  .custom-color-wrap input[type="color"] {
    width: 28px; height: 28px;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    background: none;
    padding: 0;
  }

  .custom-color-wrap input[type="color"]::-webkit-color-swatch-wrapper { padding: 0; }
  .custom-color-wrap input[type="color"]::-webkit-color-swatch {
    border-radius: 50%;
    border: 2px solid var(--border);
  }

  .hex-input {
    width: 82px;
    background: var(--panel2);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text);
    font-size: 0.72rem;
    padding: 4px 8px;
    font-family: monospace;
    letter-spacing: 0.05em;
    outline: none;
    transition: border-color 0.2s;
  }

  .hex-input:focus { border-color: var(--accent); }

  .insert-btn {
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    color: #1a1000;
    border: none;
    border-radius: 6px;
    padding: 5px 12px;
    font-size: 0.72rem;
    font-weight: 700;
    cursor: pointer;
    letter-spacing: 0.05em;
    transition: all 0.2s;
    white-space: nowrap;
  }

  .insert-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(201,168,76,0.4);
  }

  .editor-area {
    flex: 1;
    padding: 16px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    gap: 10px;
  }

  .editor-area textarea {
    flex: 1;
    width: 100%;
    background: var(--panel2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-family: 'Microsoft JhengHei', 'PingFang TC', 'Hiragino Sans GB', sans-serif;
    font-size: 0.9rem;
    line-height: 1.8;
    padding: 16px;
    resize: none;
    outline: none;
    transition: border-color 0.2s;
  }

  .editor-area textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(201,168,76,0.1);
  }

  .editor-area textarea::placeholder {
    color: var(--text-dim);
    font-size: 0.82rem;
  }

  .syntax-hint {
    background: rgba(201,168,76,0.06);
    border: 1px solid rgba(201,168,76,0.15);
    border-radius: 8px;
    padding: 10px 14px;
    font-size: 0.72rem;
    color: var(--text-dim);
    line-height: 1.7;
  }

  .syntax-hint code {
    color: var(--accent2);
    font-family: monospace;
    background: rgba(201,168,76,0.1);
    padding: 1px 5px;
    border-radius: 3px;
  }

  .action-bar {
    padding: 12px 16px;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 8px;
    background: rgba(13,13,20,0.4);
  }

  .btn {
    flex: 1;
    padding: 9px 16px;
    border-radius: 8px;
    border: none;
    font-size: 0.78rem;
    font-weight: 600;
    cursor: pointer;
    letter-spacing: 0.05em;
    transition: all 0.2s;
  }

  .btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    color: #1a1000;
  }

  .btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(201,168,76,0.35);
  }

  .btn-secondary {
    background: var(--panel2);
    color: var(--text-dim);
    border: 1px solid var(--border);
  }

  .btn-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
  }

  .right-panel {
    display: flex;
    flex-direction: column;
    background: var(--panel);
  }

  .preview-area {
    flex: 1;
    padding: 28px 32px;
    overflow-y: auto;
    line-height: 2;
    font-size: 1rem;
  }

  .preview-area::-webkit-scrollbar { width: 4px; }
  .preview-area::-webkit-scrollbar-track { background: transparent; }
  .preview-area::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 2px;
  }

  .preview-area .preview-line {
    margin-bottom: 4px;
    word-break: break-all;
  }

  .preview-area .empty-hint {
    color: var(--text-dim);
    font-size: 0.85rem;
    text-align: center;
    margin-top: 60px;
    opacity: 0.5;
    letter-spacing: 0.1em;
  }

  .preview-stats {
    padding: 10px 20px;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 20px;
    background: rgba(13,13,20,0.4);
  }

  .stat {
    font-size: 0.7rem;
    color: var(--text-dim);
    letter-spacing: 0.1em;
  }

  .stat span {
    color: var(--accent);
    font-weight: 600;
  }

  .copy-btn {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-dim);
    border-radius: 6px;
    padding: 4px 12px;
    font-size: 0.7rem;
    cursor: pointer;
    letter-spacing: 0.08em;
    transition: all 0.2s;
  }

  .copy-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
  }

  .toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: rgba(201,168,76,0.15);
    border: 1px solid var(--accent);
    color: var(--accent2);
    padding: 10px 24px;
    border-radius: 24px;
    font-size: 0.8rem;
    letter-spacing: 0.1em;
    opacity: 0;
    transition: all 0.3s;
    z-index: 100;
    backdrop-filter: blur(8px);
  }

  .toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }

  textarea::-webkit-scrollbar { width: 4px; }
  textarea::-webkit-scrollbar-track { background: transparent; }
  textarea::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 2px;
  }

  .current-color-preview {
    width: 22px; height: 22px;
    border-radius: 4px;
    border: 1px solid var(--border);
    flex-shrink: 0;
  }

  .emoji-btn {
    width: 32px; height: 32px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--panel2);
    font-size: 1.1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    flex-shrink: 0;
  }

  .emoji-btn:hover {
    background: var(--accent);
    transform: scale(1.1);
  }

  .emoji-picker {
    display: none;
    position: absolute;
    top: 100px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--panel2);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 12px;
    z-index: 100;
    box-shadow: 0 8px 32px rgba(0,0,0,0.5);
    min-width: 340px;
    height: fit-content;
  }

  .emoji-picker.show { display: block; }
  .emoji-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-bottom: 10px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
  }
  .emoji-tab {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 3px 8px;
    font-size: 0.8rem;
    cursor: pointer;
    color: var(--text);
    transition: all 0.2s;
  }
  .emoji-tab:hover { background: var(--accent); }
  .emoji-tab.active {
    background: var(--accent);
    color: var(--panel);
    font-weight: bold;
  }

  .emoji-grid {
    display: grid;
    grid-template-columns: repeat(10, 1fr);
    gap: 4px;
  }

  .emoji-item {
    width: 32px; height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    cursor: pointer;
    border-radius: 6px;
    transition: all 0.15s;
    user-select: none;
  }

  .emoji-item:hover {
    background: rgba(201,168,76,0.2);
    transform: scale(1.2);
  }
  .kaomoji-btn {
    padding: 4px 8px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--panel2);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s;
    color: var(--text);
  }
  .kaomoji-btn:hover { background: var(--accent); color: var(--panel); }

  .kaomoji-picker {
    display: none;
    position: absolute;
    top: 100px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--panel2);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 12px;
    z-index: 100;
    box-shadow: 0 8px 32px rgba(0,0,0,0.5);
    min-width: 380px;
    height: fit-content;
  }
  .kaomoji-picker.show { display: block; }

  .kaomoji-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-bottom: 10px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
  }
  .kaomoji-tab {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 4px 10px;
    font-size: 0.75rem;
    cursor: pointer;
    color: var(--text);
    transition: all 0.2s;
  }
  .kaomoji-tab:hover { background: var(--accent); }
  .kaomoji-tab.active {
    background: var(--accent);
    color: var(--panel);
    font-weight: bold;
  }

  .kaomoji-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 6px;
    max-height: 200px;
    overflow-y: auto;
  }
  .kaomoji-grid::-webkit-scrollbar { width: 4px; }
  .kaomoji-grid::-webkit-scrollbar-track { background: transparent; }
  .kaomoji-grid::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

  .kaomoji-item {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 8px 4px;
    text-align: center;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.15s;
    white-space: nowrap;
    overflow: hidden;
  }
  .kaomoji-item:hover {
    background: rgba(201,168,76,0.2);
    border-color: var(--accent);
    transform: scale(1.05);
  }


  .modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.7);
    z-index: 200;
    align-items: center;
    justify-content: center;
  }
  .modal-overlay.show { display: flex; }

  .modal-box {
    background: var(--panel2);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px 24px;
    min-width: 260px;
    text-align: center;
    box-shadow: 0 8px 32px rgba(0,0,0,0.5);
  }

  .modal-text {
    font-size: 0.9rem;
    color: var(--text);
    margin-bottom: 18px;
  }

  .modal-btns {
    display: flex;
    gap: 12px;
    justify-content: center;
  }

  .modal-btn {
    flex: 1;
    padding: 10px 20px;
    border-radius: 8px;
    border: none;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
  }

  .modal-cancel {
    background: var(--panel);
    color: var(--text-dim);
    border: 1px solid var(--border);
  }
  .modal-cancel:hover { border-color: var(--accent); color: var(--accent); }

  .modal-confirm {
    background: linear-gradient(135deg, #e16060, #c94444);
    color: white;
  }
  .modal-confirm:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(225,96,96,0.4); }

  /* Mobile responsive */
  @media (max-width: 768px) {
    .main {
      grid-template-columns: 1fr;
      height: auto;
      min-height: calc(100vh - 55px);
    }
    .left-panel {
      border-right: none;
      border-bottom: 1px solid var(--border);
      min-height: 55vh;
    }
    header { padding: 12px 16px; }
    header h1 { font-size: 0.9rem; }
    header .subtitle { display: none; }
    .color-toolbar { padding: 8px 10px; gap: 6px; }
    .color-chip { width: 20px; height: 20px; }
    .hex-input { width: 60px; font-size: 0.65rem; }
    .insert-btn { padding: 4px 6px; font-size: 0.65rem; }
    .emoji-btn { width: 28px; height: 28px; font-size: 1rem; }
    .emoji-picker { left: 10px; right: 10px; transform: none; max-width: none; }
    .emoji-grid { grid-template-columns: repeat(8, 1fr); gap: 4px; }
    .emoji-item { width: 28px; height: 28px; font-size: 1.1rem; }
    .editor-area { padding: 10px; }
    .editor-area textarea { padding: 12px; font-size: 0.85rem; line-height: 1.7; }
    .syntax-hint { padding: 8px 10px; font-size: 0.65rem; }
    .action-bar { padding: 8px 10px; gap: 6px; flex-wrap: wrap; }
    .btn { padding: 8px 10px; font-size: 0.72rem; }
    .preview-area { padding: 16px; font-size: 0.9rem; line-height: 1.9; }
    .panel-header { padding: 10px 14px; }
    .right-panel { min-height: 40vh; }
    .modal-box { min-width: 240px; padding: 16px 20px; }
    .modal-btn { padding: 8px 16px; font-size: 0.8rem; }
  }

.header-link-btn {
  margin-left: auto;
  padding: 8px 16px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #0d0d14;
  border: none;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s ease;
  white-space: nowrap;
}
.header-link-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(201, 168, 76, 0.3);
}
@media (max-width: 600px) {
  .header-link-btn { padding: 6px 10px; font-size: 0.7rem; }
}

header .logo {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  object-fit: cover;
  flex-shrink: 0;
}
@media (max-width: 600px) {
  header .logo { width: 24px; height: 24px; }
}