:root {
      --font-body: "Ranade", sans-serif;
      --font-display: "Archivo", sans-serif;
      --bg: #f4f1ea;
      --ink: #141414;
      --muted: #5c574c;
      --hairline: rgba(20, 20, 20, 0.08);
      /* ~25% thinner than prior 23px bar */
      --seek-h: 17px;
      --seek-radius: 4px;
      /* Right: bg tinted darker; left: darker; indicator: darkest (oklab when supported) */
      --seek-fill-right: #ebe7df;
      --seek-fill-left: #9e9587;
      --seek-indicator: #4f4a42;
      --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
    }

    @supports (color: color-mix(in oklab, white, black)) {
      :root {
        --seek-fill-right: color-mix(in oklab, var(--bg) 91%, var(--ink) 9%);
        --seek-fill-left: color-mix(in oklab, var(--bg) 58%, var(--ink) 28%);
        --seek-indicator: color-mix(in oklab, var(--bg) 34%, var(--ink) 52%);
      }
    }

    * {
      box-sizing: border-box;
    }

    html {
      overflow-x: hidden;
    }

    body {
      margin: 0;
      color: var(--ink);
      font-family: var(--font-body);
      font-weight: 300;
      font-size: 14px;
      line-height: 1.45;
      background: var(--bg);
      min-height: 100vh;
      overflow-x: hidden;
      display: flex;
      flex-direction: column;
    }

    body::before {
      content: "";
      position: fixed;
      inset: 0;
      pointer-events: none;
      z-index: 0;
      background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='1.7' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
      opacity: 0.15;
      mix-blend-mode: multiply;
    }

    .flowers-bottom {
      position: relative;
      width: 100%;
      flex-shrink: 0;
      margin-top: auto;
      pointer-events: none;
      line-height: 0;
    }

    .flowers-bottom img {
      display: block;
      width: 100%;
      height: auto;
      max-width: 100%;
      vertical-align: bottom;
      mix-blend-mode: darken;
    }

    @media (max-width: 640px) {

      /* 2× viewport width, centered without transform so mix-blend-mode still blends with body/noise */
      .flowers-bottom {
        width: 200vw;
        max-width: none;
        margin-left: calc((100vw - 200vw) / 2);
      }

      .flowers-bottom img {
        width: 100%;
        max-width: none;
      }

      /* No custom cursor trailer on touch / narrow viewports */
      #trailer {
        display: none !important;
      }
    }

    /* Custom Cursor */
    body:hover>#trailer {
      opacity: 1;
    }

    #trailer {
      height: 20px;
      width: 20px;
      background-color: var(--ink);
      border-radius: 20px;
      position: fixed;
      left: 0px;
      top: 0px;
      z-index: 10000;
      pointer-events: none;
      opacity: 0;
      transition: transform 0.15s ease-out, opacity 500ms ease;
      display: grid;
      place-items: center;
      transform-origin: top left;
    }

    #trailer:not([data-type=""])>#trailer-icon {
      opacity: 1;
    }

    #trailer-icon {
      color: var(--bg);
      opacity: 0;
      transition: opacity 400ms ease;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    #trailer-icon svg {
      width: 8px;
      height: 8px;
      stroke-width: 2.5;
    }

    .shell {
      position: relative;
      width: 100%;
      max-width: 34rem;
      margin: 0 auto;
      padding: 20px clamp(12px, 3vw, 20px) 40px;
      flex: 1 0 auto;
    }

    @media (max-width: 640px) {
      .shell {
        padding-left: 20px;
        padding-right: 20px;
      }
    }

    .masthead {
      padding-bottom: 14px;
      margin-bottom: 18px;
      border-bottom: 1px solid var(--hairline);
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    h1 {
      margin: 0;
      font-family: var(--font-display);
      font-weight: 600;
      font-size: 1rem;
      letter-spacing: -0.02em;
      line-height: 1.25;
    }

    .gif-toggle {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: none;
      border: none;
      padding: 4px 0;
      cursor: pointer;
      color: var(--muted);
      font-family: var(--font-display);
      font-weight: 600;
      font-size: 11px;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      transition: color 0.15s ease;
    }

    .gif-toggle:hover {
      color: var(--ink);
    }

    .gif-toggle__icon {
      width: 14px;
      height: 14px;
      stroke-width: 2;
    }

    .gif-toggle--spin-once .gif-toggle__icon {
      animation: spin-once 500ms ease-in-out;
    }

    @keyframes spin-once {
      from {
        transform: rotate(0deg);
      }

      to {
        transform: rotate(360deg);
      }
    }

    .main-stack {
      display: flex;
      flex-direction: column;
      gap: 0;
      min-width: 0;
    }

    .section-label {
      font-family: var(--font-display);
      font-weight: 600;
      font-size: 11px;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      color: var(--muted);
      margin: 0 0 8px;
    }

    .col-input {
      padding-bottom: 14px;
      border-bottom: none;
      margin-bottom: 0;
    }

    .output-controls {
      display: flex;
      align-items: center;
      gap: 12px;
      padding-bottom: 14px;
      border-bottom: 1px solid var(--hairline);
      margin-bottom: 20px;
    }

    .scale-btn,
    .aa-toggle {
      background: none;
      border: none;
      padding: 0;
      margin: 0;
      cursor: pointer;
      font-family: var(--font-display);
      font-weight: 600;
      font-size: 11px;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      color: var(--muted);
      transition: color 0.15s ease, opacity 0.15s ease;
    }

    .scale-btn:hover,
    .aa-toggle:hover {
      color: var(--ink);
    }

    .scale-btn.active {
      color: var(--ink);
    }

    .divider-vertical {
      width: 1px;
      height: 12px;
      background-color: var(--hairline);
    }

    .aa-toggle {
      opacity: 0.5;
    }

    .aa-toggle.active {
      opacity: 1;
    }

    .upload-area {
      border: none;
      border-top: 1px solid var(--hairline);
      border-bottom: 1px solid var(--hairline);
      padding: 16px 0;
      cursor: pointer;
      transition: opacity 0.15s;
    }

    .upload-area:hover,
    .upload-area.dragover {
      opacity: 0.75;
    }

    .upload-area p {
      margin: 0;
      font-size: 13px;
      color: var(--ink);
    }

    .upload-area input[type="file"] {
      display: none;
    }

    .footnote {
      margin: 12px 0 0;
      font-size: 11px;
      line-height: 1.4;
      color: var(--muted);
      max-width: 56ch;
    }

    .previews {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 12px;
      justify-items: stretch;
      padding-bottom: 20px;
    }

    .preview-card {
      padding: 0;
      display: flex;
      flex-direction: column;
      align-items: stretch;
      gap: 8px;
      text-align: left;
      width: 100%;
      min-width: 0;
    }

    .preview-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
      padding: 0;
      margin-bottom: -2px;
    }

    .preview-header h3 {
      margin: 0;
      font-family: var(--font-display);
      font-weight: 600;
      font-size: 11px;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      color: var(--muted);
      transition: color 0.15s ease;
    }

    .preview-header:hover h3 {
      color: var(--ink);
    }

    .preview-download__icon {
      flex-shrink: 0;
      width: 14px;
      height: 14px;
      opacity: 0.45;
      stroke: var(--muted);
      fill: none;
      stroke-width: 1.5;
      stroke-linecap: round;
      stroke-linejoin: round;
      transition: opacity 0.15s ease, stroke 0.15s ease;
    }

    .preview-header:hover .preview-download__icon {
      opacity: 0.8;
      stroke: var(--ink);
    }

    .preview-canvas {
      width: 100%;
      max-width: none;
      height: auto;
      aspect-ratio: 1;
      display: block;
      margin: 0;
      background: #e8e6e1;
      border-radius: 2px;
      background-image:
        linear-gradient(45deg, #ddd 25%, transparent 25%),
        linear-gradient(-45deg, #ddd 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #ddd 75%),
        linear-gradient(-45deg, transparent 75%, #ddd 75%);
      background-size: 12px 12px;
      background-position: 0 0, 0 6px, 6px -6px, -6px 0px;
    }

    .block-output {
      padding-top: 14px;
      margin-top: 0;
      margin-bottom: 8px;
      border: none;
    }

    .tuning-block {
      margin-top: 0;
      padding-top: 0;
      border-top: none;
    }

    .param-groups {
      display: flex;
      flex-direction: column;
      gap: 0;
    }

    .param-section {
      border-bottom: 1px solid var(--hairline);
    }

    .param-section:last-child {
      border-bottom: none;
    }

    .accordion__dropdown {
      display: grid;
      grid-template-rows: 0fr;
      transition: grid-template-rows 0.4s ease;
    }

    .accordion--visible .accordion__dropdown {
      grid-template-rows: 1fr;
    }

    .accordion__dropdown-inner {
      overflow: hidden;
    }

    .param-section__summary {
      list-style: none;
      cursor: pointer;
      font-family: var(--font-display);
      font-weight: 600;
      font-size: 11px;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      color: var(--muted);
      padding: 12px 0;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      user-select: none;
      width: 100%;
      margin: 0;
      background: none;
      border: none;
      text-align: left;
      -webkit-tap-highlight-color: transparent;
    }

    .param-section__summary:hover,
    .param-section__summary:focus-visible {
      color: var(--ink);
    }

    .param-section__summary:focus-visible {
      outline: 2px solid var(--ink);
      outline-offset: 2px;
    }

    .param-section__summary::-webkit-details-marker {
      display: none;
    }

    .param-section__summary::after {
      content: "";
      width: 6px;
      height: 6px;
      border-right: 1.5px solid var(--muted);
      border-bottom: 1.5px solid var(--muted);
      transform: rotate(45deg);
      flex-shrink: 0;
      opacity: 0.7;
      transition: transform 0.4s ease;
    }

    .accordion--visible .param-section__summary::after {
      transform: rotate(-135deg);
    }

    .param-section__body {
      display: flex;
      flex-direction: column;
      gap: 6px;
      padding: 0 0 12px;
    }

    .controls {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .control-group {
      display: grid;
      grid-template-columns: minmax(0, 1fr);
      gap: 4px;
    }

    .control-group label {
      display: flex;
      justify-content: space-between;
      align-items: baseline;
      gap: 8px;
      font-size: 11px;
      font-family: var(--font-body);
      font-weight: 300;
      color: var(--ink);
      line-height: 1.2;
    }

    .control-group label code {
      font-family: var(--mono);
      font-size: 10px;
      color: var(--muted);
      font-weight: 300;
    }

    .control-group .val {
      font-family: var(--mono);
      font-size: 10px;
      color: var(--muted);
      flex-shrink: 0;
    }

    /* Range: custom track + invisible native input for accessibility */
    .seek-control {
      position: relative;
      display: grid;
      place-items: center;
      width: 100%;
      height: var(--seek-h);
      margin: 0 0 4px;
      container-type: inline-size;
      --active: 0;
    }

    .seek-control:hover,
    .seek-control:focus-within {
      --active: 1;
    }

    .seek-control input[type="range"] {
      position: absolute;
      inset: 0;
      width: 100%;
      height: var(--seek-h);
      margin: 0;
      opacity: 0;
      cursor: grab;
      z-index: 4;
      /* pan-y: browser keeps vertical scroll; horizontal drag still drives the range on mobile */
      touch-action: pan-y;
    }

    .seek-control input[type="range"]:active {
      cursor: grabbing;
    }

    .seek-control input[type="range"]::-webkit-slider-thumb {
      appearance: none;
      -webkit-appearance: none;
      width: 22px;
      height: var(--seek-h);
    }

    .seek-control input[type="range"]::-webkit-slider-runnable-track {
      -webkit-appearance: none;
      height: var(--seek-h);
    }

    .seek-control input[type="range"]::-moz-range-track {
      height: var(--seek-h);
    }

    .seek-control input[type="range"]::-moz-range-thumb {
      width: 22px;
      height: var(--seek-h);
      border: none;
      border-radius: 0;
      background: transparent;
    }

    .seek-control .control__track {
      --fill-left: var(--seek-fill-left);
      --fill-right: var(--seek-fill-right);
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      pointer-events: none;
      z-index: 1;
      clip-path: inset(0 round var(--seek-radius));
    }

    .seek-control .control__track-slide {
      height: 100%;
      width: 100%;
      position: relative;
      translate: calc(-50% + (var(--value) * 1cqi)) 0;
      transition: translate 0.08s linear;
    }

    .seek-control .control__fill {
      width: 100%;
      height: 100%;
      position: absolute;
      border-radius: var(--seek-radius);
    }

    .seek-control .control__fill:nth-child(1) {
      background: var(--fill-left);
      right: calc(50% + 0.35rem);
    }

    .seek-control .control__fill:nth-child(3) {
      background: var(--fill-right);
      left: calc(50% + 0.35rem);
    }

    .seek-control .control__indicator {
      height: 72%;
      border-radius: 1px;
      width: 3px;
      position: absolute;
      top: 50%;
      left: 50%;
      background: var(--seek-indicator);
      box-shadow: none;
      z-index: 2;
      translate: -50% -50%;
      opacity: calc(0.92 + var(--active) * 0.08);
    }

    .error-msg {
      color: #b00020;
      font-size: 11px;
      margin-top: 8px;
      display: none;
    }

    .empty-output {
      font-size: 12px;
      color: var(--muted);
      line-height: 1.5;
      margin: 0;
      padding: 8px 0;
    }