:root {
      color-scheme: dark;
      --bg: #101418;
      --panel: #171d22;
      --panel-2: #202830;
      --field: #10161b;
      --drop: #11171c;
      --drop-hover: #151c21;
      --canvas-bg: #0c1115;
      --checker: #12191e;
      --line: #33404a;
      --text: #eef3f6;
      --muted: #93a4ae;
      --accent: #f0c14b;
      --accent-2: #45b8ac;
      --danger: #ff6b6b;
      --ok: #84d67e;
      --shadow: 0 18px 55px rgba(0, 0, 0, 0.28);
    }

    body[data-theme="light"] {
      color-scheme: light;
      --bg: #f4f2ec;
      --panel: #ffffff;
      --panel-2: #edf1f2;
      --field: #fbfcfc;
      --drop: #f7f9f9;
      --drop-hover: #fff9e6;
      --canvas-bg: #f8faf9;
      --checker: #e8eeee;
      --line: #cbd4d8;
      --text: #152025;
      --muted: #5c6d75;
      --accent: #c98d12;
      --accent-2: #16897e;
      --danger: #b63333;
      --ok: #267a35;
      --shadow: 0 18px 55px rgba(31, 43, 48, 0.13);
    }

    * { box-sizing: border-box; }

    body {
      margin: 0;
      min-height: 100vh;
      font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      color: var(--text);
      background:
        linear-gradient(var(--body-wash, rgba(16, 20, 24, 0.88)), var(--body-wash-2, rgba(16, 20, 24, 0.96))),
        repeating-linear-gradient(90deg, transparent 0 31px, rgba(240, 193, 75, 0.08) 31px 32px),
        repeating-linear-gradient(0deg, var(--bg) 0 31px, rgba(69, 184, 172, 0.08) 31px 32px);
    }

    body[data-theme="light"] {
      --body-wash: rgba(244, 242, 236, 0.88);
      --body-wash-2: rgba(244, 242, 236, 0.96);
    }

    main {
      width: min(1220px, calc(100% - 28px));
      margin: 0 auto;
      padding: 28px 0;
    }

    header {
      display: flex;
      justify-content: space-between;
      gap: 20px;
      align-items: start;
      margin-bottom: 18px;
    }

    .top-side {
      display: grid;
      gap: 10px;
      justify-items: end;
      min-width: min(380px, 100%);
    }

    .top-tools {
      display: flex;
      flex-wrap: wrap;
      justify-content: end;
      gap: 8px;
    }

    .select-field {
      display: grid;
      gap: 4px;
      min-width: 118px;
    }

    .select-field span {
      color: var(--muted);
      font-size: 0.72rem;
      font-weight: 800;
      text-transform: uppercase;
    }

    select {
      height: 36px;
      border: 1px solid var(--line);
      border-radius: 8px;
      color: var(--text);
      background: var(--field);
      font: inherit;
      font-weight: 750;
    }

    h1 {
      margin: 0;
      font-size: clamp(1.7rem, 4vw, 3.2rem);
      line-height: 0.98;
      letter-spacing: 0;
    }

    header p {
      margin: 10px 0 0;
      max-width: 740px;
      color: var(--muted);
      line-height: 1.55;
    }

    .privacy-note {
      color: var(--accent);
      font-weight: 750;
    }

    .project-links {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 10px;
      margin-top: 14px;
    }

    .github-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      min-height: 40px;
      padding: 9px 12px;
      border: 1px solid var(--line);
      border-radius: 8px;
      color: var(--text);
      background: color-mix(in srgb, var(--panel) 82%, transparent);
      font-size: 0.9rem;
      font-weight: 800;
      text-decoration: none;
      transition: border-color 0.16s, transform 0.16s, background 0.16s;
    }

    .github-link:hover {
      border-color: var(--accent);
      background: color-mix(in srgb, var(--panel-2) 88%, transparent);
      transform: translateY(-1px);
    }

    .github-icon {
      width: 20px;
      height: 20px;
      flex: 0 0 auto;
    }

    .bmc-slot {
      min-height: 40px;
      display: inline-flex;
      align-items: center;
    }

    .bmc-slot img,
    .bmc-slot iframe {
      max-width: 100%;
    }

    .status {
      display: flex;
      align-items: center;
      gap: 10px;
      min-width: 0;
      padding: 12px 14px;
      border: 1px solid var(--line);
      border-radius: 8px;
      background: color-mix(in srgb, var(--panel) 92%, transparent);
      color: var(--muted);
      box-shadow: var(--shadow);
    }

    .status strong {
      flex: 0 0 auto;
      margin-bottom: 0;
      color: var(--text);
      font-size: 0.92rem;
      white-space: nowrap;
    }

    .status span {
      min-width: 0;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

    .workspace {
      display: grid;
      grid-template-columns: minmax(310px, 410px) minmax(0, 1fr);
      gap: 16px;
      align-items: start;
    }

    .panel {
      border: 1px solid var(--line);
      border-radius: 8px;
      background: color-mix(in srgb, var(--panel) 96%, transparent);
      box-shadow: var(--shadow);
    }

    .panel-header {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      align-items: center;
      padding: 14px 16px;
      border-bottom: 1px solid var(--line);
      background: color-mix(in srgb, var(--panel-2) 64%, transparent);
    }

    h2 {
      margin: 0;
      font-size: 1rem;
      letter-spacing: 0;
    }

    .controls {
      display: grid;
      gap: 14px;
      padding: 16px;
    }

    .drop {
      display: grid;
      place-items: center;
      min-height: 156px;
      padding: 18px;
      border: 1px dashed #5a6a74;
      border-radius: 8px;
      background: var(--drop);
      text-align: center;
      cursor: pointer;
      transition: border-color 0.16s, background 0.16s, transform 0.16s;
    }

    .drop:hover,
    .drop.dragging {
      border-color: var(--accent);
      background: var(--drop-hover);
      transform: translateY(-1px);
    }

    .drop input {
      position: absolute;
      width: 1px;
      height: 1px;
      overflow: hidden;
      clip: rect(0 0 0 0);
    }

    .drop b {
      display: block;
      margin-bottom: 7px;
      font-size: 1.02rem;
    }

    .drop span {
      color: var(--muted);
      line-height: 1.45;
    }

    .field {
      display: grid;
      gap: 7px;
    }

    label {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      color: var(--text);
      font-size: 0.9rem;
      font-weight: 700;
    }

    label.select-field {
      display: grid;
      justify-content: stretch;
      gap: 4px;
    }

    label output {
      color: var(--accent);
      font-variant-numeric: tabular-nums;
    }

    input[type="range"] {
      width: 100%;
      accent-color: var(--accent);
    }

    input[type="text"],
    input[type="number"],
    textarea {
      width: 100%;
      min-width: 0;
      border: 1px solid var(--line);
      border-radius: 8px;
      color: var(--text);
      background: var(--field);
      font: inherit;
    }

    input[type="text"],
    input[type="number"] {
      height: 40px;
      padding: 0 11px;
    }

    textarea {
      min-height: 168px;
      padding: 12px;
      resize: vertical;
      line-height: 1.45;
      word-break: break-all;
    }

    .row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
    }

    .actions {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
    }

    button {
      height: 42px;
      border: 1px solid transparent;
      border-radius: 8px;
      color: #111418;
      background: var(--accent);
      cursor: pointer;
      font: inherit;
      font-weight: 800;
      transition: filter 0.16s, transform 0.16s, opacity 0.16s;
    }

    button:hover:not(:disabled) {
      filter: brightness(1.05);
      transform: translateY(-1px);
    }

    button:disabled {
      cursor: not-allowed;
      opacity: 0.48;
    }

    button.secondary {
      color: var(--text);
      border-color: var(--line);
      background: var(--panel-2);
    }

    .preview-wrap {
      min-height: 640px;
      padding: 16px;
    }

    .canvas-shell {
      display: grid;
      place-items: center;
      min-height: 430px;
      overflow: auto;
      border: 1px solid var(--line);
      border-radius: 8px;
      background:
        linear-gradient(45deg, var(--checker) 25%, transparent 25%),
        linear-gradient(-45deg, var(--checker) 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, var(--checker) 75%),
        linear-gradient(-45deg, transparent 75%, var(--checker) 75%);
      background-color: var(--canvas-bg);
      background-position: 0 0, 0 10px, 10px -10px, -10px 0;
      background-size: 20px 20px;
    }

    canvas {
      display: block;
      max-width: 100%;
      image-rendering: pixelated;
    }

    .stats {
      display: grid;
      grid-template-columns: repeat(5, minmax(0, 1fr));
      gap: 10px;
      margin-top: 12px;
    }

    .stat {
      min-width: 0;
      padding: 12px;
      border: 1px solid var(--line);
      border-radius: 8px;
      background: var(--panel-2);
    }

    .stat span {
      display: block;
      color: var(--muted);
      font-size: 0.76rem;
    }

    .stat b {
      display: block;
      margin-top: 5px;
      overflow-wrap: anywhere;
      font-size: 1rem;
      font-variant-numeric: tabular-nums;
    }

    .note {
      margin: 12px 0 0;
      color: var(--muted);
      line-height: 1.5;
      font-size: 0.88rem;
    }

    .ok { color: var(--ok); }
    .bad { color: var(--danger); }

    .watermark {
      position: fixed;
      right: 16px;
      bottom: 14px;
      z-index: 10;
      color: color-mix(in srgb, var(--text) 78%, transparent);
      font-size: 26px;
      font-weight: 900;
      letter-spacing: 0;
      line-height: 1.25;
      pointer-events: none;
      text-align: right;
      text-transform: uppercase;
    }

    .watermark small {
      display: block;
      margin-top: 1px;
      font-size: 0.46em;
      font-weight: 800;
      letter-spacing: 0;
    }

    .license-line {
      display: flex;
      justify-content: end;
      align-items: center;
      gap: 7px;
      margin-top: 4px;
      font-size: 0.38em;
      font-weight: 850;
      letter-spacing: 0;
    }

    .license-icons {
      width: 118px;
      height: auto;
      display: block;
    }

    .license-icons.dark-license { display: block; }
    .license-icons.light-license { display: none; }

    body[data-theme="light"] .license-icons.dark-license { display: none; }
    body[data-theme="light"] .license-icons.light-license { display: block; }

    @media (max-width: 560px) {
      .watermark {
        right: 10px;
        bottom: 8px;
        font-size: 20px;
      }

      .license-icons {
        width: 92px;
      }
    }

    @media (max-width: 900px) {
      header,
      .workspace {
        grid-template-columns: 1fr;
      }

      header {
        display: grid;
        align-items: start;
      }

      .top-side,
      .top-tools {
        justify-items: stretch;
        justify-content: stretch;
      }

      .project-links {
        align-items: flex-start;
      }

      .preview-wrap {
        min-height: auto;
      }

      .stats {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }
    }

    @media (max-width: 560px) {
      main { width: min(100% - 18px, 1220px); padding: 16px 0; }
      .row,
      .actions,
      .stats {
        grid-template-columns: 1fr;
      }

      .github-link,
      .bmc-slot {
        width: 100%;
      }
    }