/* Layout: tools | canvas workspace | settings. Minimal black and white studio. */
:root {
  --bg: #f2f2f0;
  --panel: #ffffff;
  --work: #e8e8e6;
  --dot: rgba(20, 20, 20, 0.12);
  --field: #f4f4f2;
  --ink: #171717;
  --muted: #777777;
  --line: #e5e5e3;
  --line-strong: #c7c7c4;
  --accent: #171717;
  --on-accent: #ffffff;
  --choice: #171717;
  --choice-text: #ffffff;
  --focus: #555555;
  --sun: #d8d8d4;
  --r: 12px;
  --h: 40px;
  --font: "Instrument Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --display: "Archivo", "Instrument Sans", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;
  --card: 0 2px 8px rgba(0, 0, 0, 0.035), 0 1px 2px rgba(0, 0, 0, 0.03);
  --lift: 0 3px 8px rgba(0, 0, 0, 0.08), 0 24px 60px rgba(0, 0, 0, 0.16);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #151515; --panel: #202020; --work: #111111; --dot: rgba(255, 255, 255, 0.07); --field: #292929;
    --ink: #f1f1ef; --muted: #a0a0a0; --line: #343434; --line-strong: #505050;
    --accent: #f1f1ef; --on-accent: #171717; --focus: #bcbcbc; --sun: #d8d8d4;
    --choice: #3b3b3b; --choice-text: #f1f1ef;
    --card: 0 2px 8px rgba(0, 0, 0, 0.18);
    --lift: 0 3px 8px rgba(0, 0, 0, 0.24), 0 24px 60px rgba(0, 0, 0, 0.4);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #151515; --panel: #202020; --work: #111111; --dot: rgba(255, 255, 255, 0.07); --field: #292929;
  --ink: #f1f1ef; --muted: #a0a0a0; --line: #343434; --line-strong: #505050;
  --accent: #f1f1ef; --on-accent: #171717; --focus: #bcbcbc; --sun: #d8d8d4;
  --choice: #3b3b3b; --choice-text: #f1f1ef;
  --card: 0 2px 8px rgba(0, 0, 0, 0.18);
  --lift: 0 3px 8px rgba(0, 0, 0, 0.24), 0 24px 60px rgba(0, 0, 0, 0.4);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  background: var(--bg);
  color: var(--ink);
  font: 14px/1.45 var(--font);
  padding-block: 12px;
  padding-left: max(12px, env(safe-area-inset-left, 0px));
  padding-right: max(12px, env(safe-area-inset-right, 0px));
  overflow: hidden;
}
h1 { margin: 0; font: 700 18px var(--display); letter-spacing: -0.01em; }
.logo-row { display: flex; align-items: center; gap: 10px; }
.logo { flex: none; width: 38px; height: 38px; display: grid; place-items: center; border-radius: 10px; background: var(--accent); color: var(--on-accent); }
.logo-text { display: flex; flex-direction: column; gap: 1px; min-width: 0; }
.by { font: 500 12px var(--font); color: var(--muted); text-decoration: none; width: fit-content; transition: color 0.15s; }
.by:hover { color: var(--ink); text-decoration: underline; text-underline-offset: 3px; }
.by:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; border-radius: 4px; }
.brand-actions { display: flex; align-items: center; gap: 8px; margin-top: 8px; }
.brand .brand-actions .lang { flex: 1; margin-top: 0; box-sizing: border-box; height: var(--h); }
.brand-actions .lang button { flex: 1; }
.icon-btn { flex: none; width: var(--h); height: var(--h); display: inline-grid; place-items: center; border: 0; border-radius: var(--r); background: transparent; color: var(--muted); cursor: pointer; transition: background-color 0.15s, color 0.15s, border-color 0.15s; }
.icon-btn:hover { background: var(--field); color: var(--ink); }
.icon-btn.bordered { border: 1px solid var(--line-strong); background: var(--panel); color: var(--ink); }
.icon-btn.bordered:hover { border-color: var(--ink); }
.icon-btn:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }

/* about modal */
.modal { position: fixed; inset: 0; z-index: 50; display: grid; place-items: center; padding: max(16px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) max(16px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left)); background: rgba(10, 13, 17, 0.55); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); animation: m-fade 0.18s ease-out; }
.modal[hidden] { display: none; }
.modal-box { width: min(920px, 100%); max-height: min(780px, 100%); display: flex; flex-direction: column; background: var(--panel); color: var(--ink); border: 1px solid var(--line); border-radius: 18px; box-shadow: 0 24px 80px rgba(0, 0, 0, 0.35); overflow: hidden; animation: m-pop 0.22s cubic-bezier(0.2, 0.9, 0.3, 1.1); }
.modal-head { display: flex; align-items: center; gap: 12px; padding: 16px 16px 16px 22px; border-bottom: 1px solid var(--line); }
.modal-title { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 1px; }
.modal-title h2 { margin: 0; font: 700 18px var(--display); letter-spacing: -0.01em; text-transform: none; color: var(--ink); }
.modal-title span { font-size: 12.5px; color: var(--muted); }
.modal-body { flex: 1; min-height: 0; overflow-y: auto; overscroll-behavior: contain; padding: 22px; display: flex; flex-direction: column; gap: 26px; scrollbar-width: thin; scrollbar-color: var(--line-strong) transparent; }
.hero { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: 28px; align-items: center; padding: 30px; border-radius: 16px; background: var(--accent); color: var(--on-accent); overflow: hidden; }
.modal-body > * { flex: none; }
.eyebrow { display: inline-block; margin-bottom: 14px; padding: 4px 10px; border-radius: 99px; border: 1px solid currentColor; font: 600 11px var(--mono); letter-spacing: 0.08em; text-transform: uppercase; opacity: 0.7; }
.hero h3 { margin: 0 0 12px; font: 800 clamp(26px, 4vw, 40px)/1.05 var(--display); letter-spacing: -0.03em; }
.modal .hero p { margin: 0 0 20px; max-width: 46ch; font-size: 14.5px; line-height: 1.55; color: inherit; opacity: 0.78; }
.hero .btn.solid { background: var(--on-accent); color: var(--accent); border-color: var(--on-accent); }
.hero-shot { margin: 0; border-radius: 12px; overflow: hidden; border: 1px solid rgba(0, 0, 0, 0.25); box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35); background: #111; }
.hero-shot .bar { display: flex; gap: 6px; padding: 9px 12px; background: #1c1c1c; }
.hero-shot .bar i { width: 9px; height: 9px; border-radius: 50%; background: #3a3a3a; }
.hero-shot img { display: block; width: 100%; height: auto; }
.results { display: grid; grid-template-columns: 1fr 0.62fr 1.4fr; gap: 12px; height: 220px; }
.results img, .shot img { display: block; width: 100%; height: 100%; object-fit: cover; object-position: top; border-radius: 12px; border: 1px solid var(--line); background: var(--field); }
.shot { margin: 0; display: flex; flex-direction: column; gap: 12px; }
.shot img { height: 170px; }
.shot.sq img { height: auto; aspect-ratio: 1; }
.about-gallery { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.about-shot { min-width: 0; margin: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 14px; background: var(--panel); }
.about-shot img { display: block; width: 100%; aspect-ratio: 1.45; object-fit: cover; background: var(--field); }
.about-shot figcaption { display: flex; flex-direction: column; gap: 4px; padding: 13px 15px 15px; }
.about-shot figcaption strong { font-size: 13px; }
.about-shot figcaption span { color: var(--muted); font-size: 12px; line-height: 1.45; }
@media (max-width: 760px) { .hero { grid-template-columns: 1fr; padding: 22px; } .results { grid-template-columns: 1fr 1fr; height: auto; } .results img { aspect-ratio: 1; } .results img:last-child { grid-column: 1 / -1; aspect-ratio: 16 / 7; } }
.m-sec { display: flex; flex-direction: column; gap: 12px; padding: 0; border: 0; }
.m-sec h4 { margin: 0; font: 600 11px var(--font); letter-spacing: 0.09em; text-transform: uppercase; color: var(--muted); }
.m-note { margin: -4px 0 0; font-size: 13px; color: var(--muted); }
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.steps li { display: flex; flex-direction: column; gap: 12px; padding: 12px 12px 16px; border: 1px solid var(--line); border-radius: 14px; background: var(--field); }
.steps li .step-txt { display: flex; flex-direction: column; gap: 8px; padding: 0 4px; }
.steps li img { display: block; width: 100%; height: 150px; object-fit: cover; object-position: top left; border-radius: 9px; border: 1px solid var(--line); }
@media (max-width: 860px) { .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 480px) { .steps { grid-template-columns: 1fr; } }
.num { width: 26px; height: 26px; display: grid; place-items: center; border-radius: 50%; background: var(--accent); color: var(--on-accent); font: 600 12px var(--mono); }
.modal strong { font: 600 14px var(--font); }
.modal p { margin: 4px 0 0; font-size: 13px; line-height: 1.5; color: var(--muted); }
.grid3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
@media (max-width: 760px) { .grid3 { grid-template-columns: 1fr; } }
.grid2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.mcard { display: flex; flex-direction: column; gap: 8px; padding: 16px; border: 1px solid var(--line); border-radius: 12px; background: var(--panel); }
.mcard.row { flex-direction: row; align-items: flex-start; gap: 14px; }
.mcard p { margin: 2px 0 0; }
.mico { flex: none; width: 38px; height: 38px; display: grid; place-items: center; border-radius: 10px; background: var(--field); color: var(--ink); border: 1px solid var(--line); }
.keys { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.keys li { display: flex; align-items: center; gap: 12px; padding: 12px 14px; border: 1px solid var(--line); border-radius: 12px; font-size: 13px; }
kbd { flex: none; min-width: 34px; padding: 4px 8px; text-align: center; font: 500 12px var(--mono); color: var(--ink); background: var(--field); border: 1px solid var(--line-strong); border-bottom-width: 2px; border-radius: 7px; }
.privacy { display: flex; gap: 14px; align-items: flex-start; padding: 16px 18px; border-radius: 12px; border: 1px dashed var(--line-strong); }
.privacy svg { flex: none; margin-top: 1px; }
.privacy p { margin-top: 2px; }
.modal-foot { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 16px 14px 22px; border-top: 1px solid var(--line); background: var(--panel); }
@keyframes m-fade { from { opacity: 0; } }
@keyframes m-pop { from { opacity: 0; transform: translateY(10px) scale(0.98); } }
@media (max-width: 760px) { .steps, .keys { grid-template-columns: repeat(2, minmax(0, 1fr)); } .grid3, .grid2 { grid-template-columns: 1fr; } }
@media (max-width: 480px) { .steps, .keys, .about-gallery { grid-template-columns: 1fr; } .modal-body { padding: 16px; } }
@media (prefers-reduced-motion: reduce) { .modal, .modal-box { animation: none; } }
.tagline { color: var(--muted); font-size: 12.5px; }

/* three columns: tools | canvas | settings. Each side column scrolls on its own. */
.app { height: 100%; display: grid; grid-template-columns: clamp(280px, 22vw, 340px) minmax(0, 1fr) clamp(280px, 23vw, 340px); gap: 12px; }
.side {
  min-width: 0; min-height: 0; overflow-y: auto; overscroll-behavior: contain; padding: 18px;
  background: var(--panel); border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--card);
  scrollbar-width: thin; scrollbar-color: var(--line-strong) transparent;
}
.side section { padding: 18px 0; display: flex; flex-direction: column; gap: 14px; border-top: 1px solid var(--line); }
.side section:first-child { border-top: 0; padding-top: 0; }
.side section:last-child { padding-bottom: 0; }
.side .brand { gap: 6px; }
.brand .lang { margin-top: 8px; }
.center {
  min-width: 0; min-height: 0; display: grid; place-items: center; container-type: size; padding: 20px;
  background-color: var(--work); background-image: radial-gradient(var(--dot) 1px, transparent 1px); background-size: 18px 18px;
  border: 1px solid var(--line); border-radius: 14px;
}
@media (max-width: 900px) {
  html, body { height: auto; }
  body { overflow: visible; }
  .app { height: auto; display: flex; flex-direction: column; }
  .center { order: 1; container-type: normal; display: flex; justify-content: center; padding: 12px; }
  .side.left { order: 2; overflow: visible; }
  .side.right { order: 3; overflow: visible; }
  .stage { width: min(100%, calc(70vh * var(--ratio, 1))); }
}

/* stage */
.stage {
  position: relative; aspect-ratio: var(--ratio, 1);
  width: min(100%, calc(80vh * var(--ratio, 1)));
  width: min(100cqw, calc(100cqh * var(--ratio, 1)));
  border-radius: 12px; background: #a6a6a2; overflow: hidden; box-shadow: var(--lift);
}
.stage.drop { outline: 3px solid var(--focus); outline-offset: -3px; }
canvas#gl { display: block; width: 100%; height: 100%; touch-action: none; cursor: grab; }
canvas#gl[data-tool="rotate"] { cursor: crosshair; }
canvas#gl[data-tool="light"] { cursor: pointer; }
canvas#gl:focus-visible { outline: 2px solid var(--focus); outline-offset: -4px; }
.empty { position: absolute; inset: 0; display: grid; place-items: center; padding: 24px; pointer-events: none; }
.empty[hidden] { display: none; }
.empty p { margin: 0; padding: 10px 14px; background: var(--panel); color: var(--ink); border: 1px solid var(--line); border-radius: var(--r); box-shadow: var(--lift); text-align: center; }

.donate-pop { position: absolute; left: 12px; top: 12px; display: inline-flex; align-items: center; gap: 7px; padding: 7px 13px 7px 10px; border-radius: 99px; background: rgba(20, 20, 20, 0.72); color: #fff; font: 500 12px var(--font); text-decoration: none; -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); opacity: 0; transform: translateY(-8px); pointer-events: none; transition: opacity 0.35s ease, transform 0.35s ease; }
.donate-pop.show { opacity: 1; transform: none; pointer-events: auto; }
.donate-pop svg { color: #ff5c8a; }
.donate-pop[hidden] { display: none; }
@media (prefers-reduced-motion: reduce) { .donate-pop { transition: opacity 0.2s; transform: none; } }
.view-hints { position: absolute; left: 12px; right: 12px; bottom: 12px; display: flex; flex-wrap: wrap; gap: 6px; pointer-events: none; }
.drag-hint { display: inline-flex; align-items: center; gap: 7px; padding: 6px 11px 6px 9px; border-radius: 99px; background: rgba(20, 20, 20, 0.55); color: #fff; font: 500 12px var(--font); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); user-select: none; }
@media (hover: none), (max-width: 900px) { .mouse-hint { display: none; } }
.rays { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; display: block; }
.rays line { stroke: var(--sun); stroke-width: 1.5; stroke-dasharray: 5 5; vector-effect: non-scaling-stroke; }
.sun {
  position: absolute; width: 32px; height: 32px; margin: -16px 0 0 -16px; padding: 0;
  display: grid; place-items: center; border-radius: 50%; border: 2px solid #fff;
  background: var(--sun); color: #2a1c00; cursor: grab; box-shadow: var(--lift); touch-action: none;
}
.sun:active { cursor: grabbing; }
.sun[hidden], .rays[hidden] { display: none; }

/* one control language */
.seg { display: flex; gap: 2px; padding: 3px; background: var(--field); border: 1px solid var(--line); border-radius: var(--r); }
.seg button {
  flex: 1; min-width: 0; height: calc(var(--h) - 8px); padding: 0 12px; border: 0; border-radius: calc(var(--r) - 3px);
  background: transparent; color: var(--muted); font: 500 13px var(--font); cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center; gap: 6px; white-space: nowrap;
  transition: background-color 0.15s, color 0.15s;
}
.seg button:not([aria-checked="true"]):hover { background: var(--line); color: var(--ink); }
.seg button[aria-checked="true"] { background: var(--accent); color: var(--on-accent); }
.seg svg { flex: none; }
.btn {
  height: var(--h); padding: 0 16px; border: 1px solid var(--line-strong); border-radius: var(--r); background: var(--panel); color: var(--ink);
  font: 500 13px var(--font); cursor: pointer; display: inline-flex; align-items: center; justify-content: center; gap: 6px; white-space: nowrap;
  transition: background-color 0.15s, border-color 0.15s, opacity 0.15s;
}
.donate-icon { color: #e0245e; }
.btn.donate svg { color: #e0245e; }
.foot-actions { display: flex; gap: 8px; }
.btn:active { transform: translateY(1px); }
.btn:hover { background: var(--field); border-color: var(--ink); }
.btn.solid { background: var(--accent); border-color: var(--accent); color: var(--on-accent); font-weight: 600; box-shadow: 0 1px 2px rgba(15, 19, 24, 0.2); }
.btn.solid:hover { background: var(--accent); border-color: var(--accent); opacity: 0.88; }
.btn.solid:disabled { opacity: 0.55; cursor: progress; }
button:focus-visible, input:focus-visible, .dz:focus-within { outline: 2px solid var(--focus); outline-offset: 2px; }

.seg.v { flex-direction: column; }
.seg.v button { justify-content: flex-start; height: 32px; padding: 0 12px; }
.seg.zoom button { min-width: 34px; }
.seg.zoom #zoomVal { font-family: var(--mono); font-size: 12px; }
.btn.block { width: 100%; }
a.btn { text-decoration: none; }
.dims { font: 400 12px var(--mono); color: var(--muted); }
.preset { display: grid; gap: 6px; }
.preset label { font-size: 13px; font-weight: 500; }
.preset select { width: 100%; height: var(--h); padding: 0 34px 0 12px; border: 1px solid var(--line-strong); border-radius: var(--r); background: var(--panel) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23888' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E") no-repeat right 12px center; color: var(--ink); font: 500 13px var(--font); cursor: pointer; -webkit-appearance: none; appearance: none; }
.preset select:hover { border-color: var(--ink); }
.preset select:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
.preset .note { font-size: 12px; color: var(--muted); margin: 0; }
.q { display: grid; grid-template-columns: 1fr auto; gap: 4px 12px; }
.q[hidden] { display: none; }
#status { margin: 0; min-height: 1.45em; font-size: 12.5px; }
.hint { margin: 0; font-size: 12.5px; color: var(--muted); }

h2 { margin: 0; font: 600 11px var(--font); letter-spacing: 0.09em; text-transform: uppercase; color: var(--muted); }

.ctl { display: grid; grid-template-columns: 1fr auto; gap: 2px 12px; align-items: baseline; min-width: 0; }
.ctl label, .ctl .lbl { font-size: 13px; font-weight: 500; }
.ctl output { font: 400 12px var(--mono); color: var(--muted); }
.ctl input[type=range], .ctl .seg, .ctl .sw, .ctl .note { grid-column: 1 / -1; }
.ctl .note { margin: 4px 0 0; font-size: 12px; color: var(--muted); }
.ctl .note:empty { display: none; }
.ctl .lbl { grid-column: 1 / -1; margin-bottom: 4px; }

input[type=range] { -webkit-appearance: none; appearance: none; width: 100%; height: 22px; margin: 0; background: transparent; cursor: pointer; --p: 50%; }
input[type=range]::-webkit-slider-runnable-track { height: 3px; border-radius: 2px; background: linear-gradient(to right, var(--ink) var(--p), var(--line-strong) var(--p)); }
input[type=range]::-moz-range-track { height: 3px; border-radius: 2px; background: var(--line-strong); }
input[type=range]::-moz-range-progress { height: 3px; border-radius: 2px; background: var(--ink); }
input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; box-sizing: border-box; width: 16px; height: 16px; margin-top: -6.5px; border-radius: 50%; background: var(--ink); border: 3px solid var(--panel); box-shadow: 0 0 0 1px var(--ink); }
input[type=range]::-moz-range-thumb { box-sizing: border-box; width: 16px; height: 16px; border-radius: 50%; background: var(--ink); border: 3px solid var(--panel); box-shadow: 0 0 0 1px var(--ink); }

.dz {
  position: relative; display: flex; align-items: center; justify-content: center; gap: 8px; height: 44px;
  border: 1px dashed var(--line-strong); border-radius: var(--r); color: var(--muted); font-weight: 500; cursor: pointer;
  transition: background-color 0.15s, border-color 0.15s, color 0.15s;
}
.dz:hover, .dz.drop { color: var(--ink); border-color: var(--ink); background: var(--field); }
.dz input { position: absolute; width: 1px; height: 1px; opacity: 0; }
#list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(58px, 1fr)); gap: 8px; }
#list li { position: relative; aspect-ratio: 1; border-radius: 8px; overflow: hidden; background: var(--field); border: 1px solid var(--line); }
#list img { width: 100%; height: 100%; object-fit: cover; display: block; }
#list .x {
  position: absolute; top: 3px; right: 3px; width: 20px; height: 20px; padding: 0; border: 0; border-radius: 50%;
  background: var(--panel); color: var(--ink); font: 600 13px/1 var(--font); cursor: pointer; box-shadow: var(--lift);
}
#list .tag { position: absolute; left: 4px; bottom: 4px; padding: 0 5px; border-radius: 4px; font: 500 10px var(--mono); background: var(--panel); color: var(--muted); }
.row { display: flex; flex-wrap: wrap; gap: 8px; }

.sw { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.sw button, .sw input[type=color] {
  width: 30px; height: 30px; padding: 0; border: 0; border-radius: var(--r); cursor: pointer;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.14);
}
.sw button[aria-pressed="true"] { outline: 2px solid var(--ink); outline-offset: 2px; }
.sw input[type=color] { -webkit-appearance: none; appearance: none; background: none; }
.sw input[type=color]::-webkit-color-swatch-wrapper { padding: 0; }
.sw input[type=color]::-webkit-color-swatch { border: 0; border-radius: var(--r); }
.sw input[type=color]::-moz-color-swatch { border: 0; border-radius: var(--r); }

@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; transition: none !important; } }

/* minimal monochrome studio */
body { background: var(--bg); }
.app { gap: 14px; }
.side { padding: 20px; border-color: color-mix(in srgb, var(--line) 82%, transparent); border-radius: 18px; }
.side section { gap: 15px; padding: 20px 0; }
.side section:first-child { padding-top: 0; }
h1 { font-size: 21px; letter-spacing: -0.035em; }
h2 { color: var(--accent); font-size: 10px; letter-spacing: .13em; }
.logo { border-radius: 13px; background: var(--accent); color: var(--on-accent); }
.by { font-size: 11px; }
.tagline { max-width: 28ch; line-height: 1.55; }
.center { border: 1px solid color-mix(in srgb, var(--line-strong) 44%, transparent); border-radius: 20px; }
.stage { border-radius: 16px; }
.btn { border-radius: 11px; transition: transform .16s ease, background-color .16s ease, border-color .16s ease, box-shadow .16s ease; }
.btn:hover { border-color: var(--accent); box-shadow: 0 4px 12px rgba(0, 0, 0, .08); transform: translateY(-1px); }
.btn.solid { background: var(--accent); border-color: var(--accent); box-shadow: 0 5px 12px rgba(0, 0, 0, .13); }
.seg { border-radius: 12px; }
.seg button { border-radius: 9px; }
.seg button[aria-checked="true"] { box-shadow: 0 2px 5px rgba(0, 0, 0, .12); }
.seg.v { gap: 4px; padding: 5px; border-radius: 14px; }
.seg.v button {
  height: auto; min-height: 42px; padding: 8px 18px; gap: 14px; border-radius: 10px;
  color: var(--muted); transition: background-color .15s ease, color .15s ease;
}
.seg.v button:not([aria-checked="true"]):hover { background: color-mix(in srgb, var(--ink) 6%, var(--field)); color: var(--ink); }
.seg.v button[aria-checked="true"] {
  color: var(--choice-text); background: var(--choice); box-shadow: none; font-weight: 600;
}
.seg.v button[aria-checked="true"] svg { opacity: .9; }
.seg.zoom { gap: 6px; padding: 0; border: 0; background: transparent; }
.seg.zoom button {
  min-width: 44px; height: 44px; padding: 0; border: 1px solid var(--line); border-radius: 11px;
  background: var(--panel); color: var(--ink); transition: background-color .15s ease, border-color .15s ease;
}
.seg.zoom button:hover { background: var(--field); border-color: var(--line-strong); }
.seg.zoom #zoomVal {
  flex: 1; padding: 0 14px; border-color: var(--line); background: var(--field); color: var(--muted);
  font: 500 12px var(--mono); letter-spacing: .02em;
}
.seg.zoom #zoomVal:hover { background: var(--panel); color: var(--ink); }
.side.right { padding-bottom: 36px; }
.side-donate { display: grid; gap: 10px; padding-top: 18px; border-top: 1px solid var(--line); }
.side-donate p { margin: 0; font-size: 12.5px; color: var(--muted); line-height: 1.45; }
/* hidden attribute must win over display rules */
.ctl[hidden], .btn[hidden], output[hidden] { display: none; }
.rng { grid-column: 1 / -1; }
/* manual value input */
.nbox { display: inline-flex; align-items: baseline; justify-content: flex-end; gap: 3px; width: 72px; font: 400 12px var(--mono); color: var(--muted); }
.nbox input { flex: 1 1 auto; width: 0; min-width: 0; padding: 3px 6px; border: 1px solid transparent; border-radius: 6px; background: var(--field); color: var(--ink); font: inherit; text-align: right; -moz-appearance: textfield; appearance: textfield; }
.nbox input::-webkit-inner-spin-button, .nbox input::-webkit-outer-spin-button { -webkit-appearance: none; margin: 0; }
.nbox input:hover { border-color: var(--line-strong); }
.nbox input:focus { outline: 0; border-color: var(--ink); background: var(--panel); }
.nbox i { font-style: normal; min-width: 8px; }
/* help button */
.lw { display: inline-flex; align-items: center; gap: 7px; }
.qm { position: relative; flex: none; width: 17px; height: 17px; padding: 0; border: 1px solid var(--line-strong); border-radius: 50%; background: transparent; color: var(--muted); font: 600 10.5px/1 var(--font); cursor: pointer; display: inline-grid; place-items: center; transition: color .15s, border-color .15s, background-color .15s; }
.qm::after { content: ''; position: absolute; inset: -8px; }
.qm:hover { color: var(--ink); border-color: var(--ink); background: var(--field); }
.qm:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
/* help modal and demo */
#help { z-index: 60; }
.help-box { width: min(460px, 100%); }
.help-box .modal-body { gap: 16px; padding: 18px 20px; }
.help-text { margin: 0; font-size: 14px; line-height: 1.6; }
.help-when { margin: 0; padding: 10px 12px; border-radius: 10px; background: var(--field); border: 1px dashed var(--line-strong); font-size: 12.5px; line-height: 1.5; color: var(--muted); }
.dm-stage { position: relative; display: grid; place-items: center; height: 200px; border-radius: 12px; border: 1px solid var(--line); background-color: var(--work); background-image: radial-gradient(var(--dot) 1px, transparent 1px); background-size: 14px 14px; overflow: hidden; }
.dm-frame { position: relative; overflow: hidden; height: 150px; aspect-ratio: var(--dr, 1); background: var(--dbg, #a6a6a2); border-radius: 8px; box-shadow: 0 6px 18px rgba(0, 0, 0, .3); transition: background-color .35s, height .35s, aspect-ratio .35s; }
.dm-persp { position: absolute; inset: 0; perspective: var(--persp, 900px); }
.dm-tilt { position: absolute; inset: 0; display: grid; grid-template: 100% / 100%; place-items: center; transform-style: preserve-3d; transform: rotateX(var(--tilt, 0deg)); }
.dm-grid { display: grid; grid-template-columns: repeat(var(--c, 9), var(--cw, 34px)); gap: var(--g, 5px); align-items: center; transform: rotate(var(--ang, 25deg)); translate: var(--tx, 0px) var(--ty, 0px); scale: var(--sc, 1); flex: none; }
.dm-c { position: relative; overflow: hidden; aspect-ratio: var(--cr, 4 / 5); background: #fff; border-radius: var(--rad, 3px); box-shadow: var(--sx, 2px) var(--sy, 3px) var(--sb, 6px) rgba(0, 0, 0, var(--sa, .35)); transition: opacity .35s, transform .35s; }
.dm-c::before { content: ''; position: absolute; left: 14%; top: 16%; width: 52%; height: 13%; border-radius: 2px; background: #f6d84b; }
.dm-c::after { content: ''; position: absolute; left: 14%; top: 42%; width: 68%; height: 5%; border-radius: 2px; background: #222; opacity: .75; box-shadow: 0 7px 0 -0.5px rgba(34, 34, 34, .75), 0 14px 0 -0.5px rgba(34, 34, 34, .45); }
.dm-grid.free .dm-c:nth-child(3n+1) { aspect-ratio: 3 / 4; }
.dm-grid.free .dm-c:nth-child(3n+2) { aspect-ratio: 1; }
.dm-grid.free .dm-c:nth-child(3n) { aspect-ratio: 4 / 3; }
.dm-grid.fr { display: flex; flex-wrap: wrap; width: 250px; justify-content: center; align-content: center; transform: none; }
.dm-grid.fr .dm-c { height: 34px; aspect-ratio: auto; }
.dm-grid.fr .dm-c:nth-child(3n+1) { width: 26px; } .dm-grid.fr .dm-c:nth-child(3n+2) { width: 34px; } .dm-grid.fr .dm-c:nth-child(3n) { width: 46px; }
.dm-grid.fc { display: flex; flex-direction: column; flex-wrap: wrap; height: 200px; width: 250px; justify-content: center; align-content: center; transform: none; }
.dm-grid.fc .dm-c { width: 34px; aspect-ratio: auto; }
.dm-grid.fc .dm-c:nth-child(3n+1) { height: 26px; } .dm-grid.fc .dm-c:nth-child(3n+2) { height: 34px; } .dm-grid.fc .dm-c:nth-child(3n) { height: 46px; }
.dm-grid.k { grid-template-columns: repeat(var(--n, 3), var(--cw, 34px)); transform: none; }
.dm-grid.k .dm-c:nth-child(n+7) { display: none; }
.dm.once .dm-c:not(.in) { opacity: 0; transform: scale(.6); }
.dm-glow { position: absolute; inset: 0; pointer-events: none; background: radial-gradient(circle at var(--gx, 25%) var(--gy, 22%), rgba(255, 255, 255, var(--ga, 0)), transparent 60%); }
.dm-sun { position: absolute; left: var(--sunx, 25%); top: var(--suny, 22%); width: 14px; height: 14px; margin: -7px 0 0 -7px; border-radius: 50%; background: #ffd23f; box-shadow: 0 0 0 3px rgba(255, 210, 63, .35), 0 0 14px rgba(255, 210, 63, .8); display: none; }
.dm.lit .dm-sun { display: block; }
.dm-cap { position: absolute; left: 10px; bottom: 8px; padding: 3px 9px; border-radius: 99px; background: rgba(20, 20, 20, .7); color: #fff; font: 600 11.5px var(--mono); }
.dm-order { position: relative; width: 150px; height: 150px; }
.dm-order .dm-c { position: absolute; width: 44px; left: 0; top: 0; aspect-ratio: 1; transition: transform .6s cubic-bezier(.3, .8, .3, 1); background: #fff; display: grid; place-items: center; font: 700 16px var(--mono); color: #222; }
.dm-order .dm-c::before, .dm-order .dm-c::after { display: none; }
.dm-bars { display: grid; gap: 12px; width: 78%; }
.dm-bars div { display: grid; grid-template-columns: 46px 1fr 56px; gap: 8px; align-items: center; font: 600 11.5px var(--mono); color: var(--ink); }
.dm-bars span { display: block; height: 14px; border-radius: 7px; background: var(--line-strong); overflow: hidden; }
.dm-bars span i { display: block; height: 100%; width: 0; border-radius: 7px; background: var(--ink); }
.dm-bars em { font-style: normal; color: var(--muted); text-align: right; }
.dm-px { display: grid; place-items: center; color: #fff; font: 700 11px var(--mono); background: #3b6fd8; border-radius: 4px; box-shadow: 0 6px 18px rgba(0, 0, 0, .3); transition: width .4s, height .4s; }
.dm-q { width: 130px; height: 150px; border-radius: 6px; background: #fff; position: relative; overflow: hidden; box-shadow: 0 6px 18px rgba(0, 0, 0, .3); }
.dm-q::before { content: ''; position: absolute; left: 14%; top: 14%; width: 50%; height: 12%; background: #f6d84b; }
.dm-q::after { content: ''; position: absolute; left: 14%; top: 40%; width: 72%; height: 5%; background: #222; box-shadow: 0 9px 0 #222, 0 18px 0 #222, 0 27px 0 #222; }
@media (prefers-reduced-motion: reduce) { .dm-frame, .dm-c, .dm-order .dm-c { transition: none; } }
/* custom colour picker, clearly different from the preset swatches */
.sw .pick { position: relative; display: inline-flex; align-items: center; gap: 8px; height: 30px; padding: 0 12px 0 4px; border: 1px dashed var(--line-strong); border-radius: 99px; cursor: pointer; color: var(--ink); font: 500 12.5px var(--font); transition: border-color .15s, background-color .15s; }
.sw .pick:hover { border-color: var(--ink); background: var(--field); }
.sw .pick:focus-within { outline: 2px solid var(--focus); outline-offset: 2px; }
.sw .pick input[type=color] { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; cursor: pointer; border-radius: 99px; box-shadow: none; }
.pick-ring { flex: none; display: grid; place-items: center; width: 22px; height: 22px; border-radius: 50%; background: conic-gradient(#ff4d4d, #ffb84d, #f6e84d, #4dd96a, #4dc3ff, #6a5cff, #d94dff, #ff4d4d); }
.pick-ring i { width: 12px; height: 12px; border-radius: 50%; background: var(--cur, #a6a6a2); border: 2px solid var(--panel); box-sizing: content-box; }
/* animation panel */
.preset select, .ctl select { width: 100%; height: var(--h); padding: 0 34px 0 12px; border: 1px solid var(--line-strong); border-radius: var(--r); background: var(--panel) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23888' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E") no-repeat right 12px center; color: var(--ink); font: 500 13px var(--font); cursor: pointer; -webkit-appearance: none; appearance: none; }
.ctl select { grid-column: 1 / -1; }
.ctl select:hover { border-color: var(--ink); }
.ctl select:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.aprog { height: 4px; border-radius: 2px; background: var(--line-strong); overflow: hidden; }
.aprog i { display: block; height: 100%; width: 0; background: var(--ink); }
.rec-badge { position: absolute; right: 12px; top: 12px; display: inline-flex; align-items: center; gap: 8px; padding: 6px 12px 6px 10px; border-radius: 99px; background: rgba(20, 20, 20, .72); color: #fff; font: 600 12px var(--mono); pointer-events: none; -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); }
.rec-badge[hidden] { display: none; }
.rec-badge i { width: 9px; height: 9px; border-radius: 50%; background: #ff3b3b; animation: recblink 1s infinite; }
@keyframes recblink { 50% { opacity: .25; } }
body.anim-run .side section:not(#animSec), body.anim-run .side .brand, body.anim-run .side-donate { pointer-events: none; opacity: .5; }
body.anim-run #gl { pointer-events: none; }
body.anim-run .view-hints { display: none; }
@media (prefers-reduced-motion: reduce) { .rec-badge i { animation: none; } }
/* About: animation feature */
.rec-feature { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr); gap: 28px; align-items: center; padding: 26px; border-radius: 16px; border: 1px solid var(--line); background: linear-gradient(135deg, var(--field), var(--panel)); overflow: hidden; }
.rec-feature h3 { margin: 0 0 10px; font: 800 clamp(22px, 3vw, 30px)/1.08 var(--display); letter-spacing: -0.02em; }
.rec-feature p { margin: 0 0 16px; font-size: 14px; line-height: 1.55; color: var(--muted); max-width: 46ch; }
.rec-new { margin-bottom: 12px; color: #e0245e; opacity: 1; }
.rec-chips, .rec-facts { list-style: none; margin: 0; padding: 0; }
.rec-chips { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px; }
.rec-chips li { padding: 5px 11px; border-radius: 99px; border: 1px solid var(--line-strong); background: var(--panel); font: 500 12px var(--font); }
.rec-facts { display: grid; gap: 8px; margin-bottom: 20px; font-size: 13px; }
.rec-facts li { display: flex; align-items: center; gap: 9px; }
.rec-facts li::before { content: '✓'; flex: none; width: 17px; height: 17px; display: grid; place-items: center; border-radius: 50%; background: var(--accent); color: var(--on-accent); font: 700 10px/1 var(--font); }
.rec-demo { position: relative; aspect-ratio: 1; border-radius: 14px; overflow: hidden; background: #111; box-shadow: var(--lift); border: 1px solid rgba(0, 0, 0, 0.25); }
.rec-demo img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transform-origin: 50% 50%; animation: recmove 9s ease-in-out infinite; }
@keyframes recmove {
  0% { transform: scale(1) translate(0, 0) rotate(0deg); }
  28% { transform: scale(1.6) translate(0, 0) rotate(0deg); }
  55% { transform: scale(1.6) translate(-12%, 7%) rotate(0deg); }
  80% { transform: scale(1.5) translate(-5%, 2%) rotate(-14deg); }
  100% { transform: scale(1) translate(0, 0) rotate(0deg); }
}
.rec-live, .rec-meta { position: absolute; top: 12px; display: inline-flex; align-items: center; gap: 7px; padding: 5px 11px; border-radius: 99px; background: rgba(20, 20, 20, 0.72); color: #fff; font: 600 11.5px var(--mono); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); }
.rec-live { left: 12px; }
.rec-live i { width: 8px; height: 8px; border-radius: 50%; background: #ff3b3b; animation: recblink 1s infinite; }
.rec-meta { right: 12px; font-weight: 500; }
.rec-bar { position: absolute; left: 12px; right: 12px; bottom: 12px; height: 5px; border-radius: 3px; background: rgba(255, 255, 255, 0.35); overflow: hidden; }
.rec-bar i { display: block; height: 100%; width: 0; background: #fff; animation: recbar 9s linear infinite; }
@keyframes recbar { from { width: 0; } to { width: 100%; } }
@media (max-width: 760px) { .rec-feature { grid-template-columns: 1fr; padding: 20px; gap: 20px; } .rec-demo { order: -1; } }
@media (prefers-reduced-motion: reduce) { .rec-demo img, .rec-live i, .rec-bar i { animation: none; } .rec-bar i { width: 60%; } }
/* compact tools panel */
.seg.v { flex-direction: row; gap: 3px; padding: 3px; border-radius: 12px; }
.seg.v button { flex: 1; min-width: 0; flex-direction: column; justify-content: center; gap: 4px; min-height: 0; height: 50px; padding: 6px 2px; border-radius: 9px; font-size: 11.5px; }
.seg.zoom button { min-width: 32px; height: 32px; border-radius: 9px; }
.seg.zoom #zoomVal { padding: 0 10px; }
.hint { font-size: 12px; line-height: 1.4; }
.dz { min-height: 48px; border-radius: 13px; border-color: var(--line-strong); background: var(--field); }
.dz:hover, .dz.drop { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 6%, var(--panel)); }
#list { gap: 9px; }
#list li { border-radius: 11px; box-shadow: var(--card); }
#list .tag { padding: 2px 6px; border-radius: 5px; }
.sw button, .sw input[type=color] { border-radius: 10px; }
@media (max-width: 900px) {
  body { padding: 10px; }
  .app { gap: 10px; }
  .center { position: sticky; top: 8px; z-index: 20; min-height: 0; padding: 8px; box-shadow: 0 8px 22px rgba(0, 0, 0, 0.28); }
  .stage { width: min(100%, calc(44vh * var(--ratio, 1))); }
  .side { padding: 18px; }
}

/* ===== Mockyard additions ===== */
.devices { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.dev { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; min-width: 0; padding: 12px 6px 10px; text-align: center; border: 1px solid var(--line-strong); border-radius: var(--r); background: var(--panel); color: var(--ink); font: 500 12.5px var(--font); cursor: pointer; transition: background-color .15s, border-color .15s; }
.dev svg { flex: none; color: var(--muted); }
.dev span { max-width: 100%; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dev:hover { border-color: var(--ink); background: var(--field); }
.dev:disabled { opacity: .45; cursor: not-allowed; }
.dev:disabled:hover { border-color: var(--line-strong); background: var(--panel); }
.dev[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.dev[aria-pressed="true"] svg { color: var(--on-accent); }
.dev:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
.thumbs { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(64px, 1fr)); gap: 8px; }
.thumbs li { position: relative; aspect-ratio: 4 / 3; border-radius: 8px; overflow: hidden; background: var(--field); border: 2px solid var(--line); cursor: pointer; }
.thumbs li[aria-current="true"] { border-color: var(--ink); }
.thumbs img { width: 100%; height: 100%; object-fit: cover; display: block; }
.thumbs .x { position: absolute; top: 3px; right: 3px; width: 20px; height: 20px; padding: 0; border: 0; border-radius: 50%; background: rgba(20, 20, 20, .75); color: #fff; font: 600 13px/1 var(--font); cursor: pointer; }
.thumbs .tag { position: absolute; left: 4px; bottom: 4px; padding: 0 5px; border-radius: 4px; font: 500 10px var(--mono); background: var(--panel); color: var(--muted); }
.sel { width: 100%; height: var(--h); padding: 0 34px 0 12px; border: 1px solid var(--line-strong); border-radius: var(--r); background: var(--panel) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23888' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E") no-repeat right 12px center; color: var(--ink); font: 500 13px var(--font); cursor: pointer; -webkit-appearance: none; appearance: none; }
.sel:hover { border-color: var(--ink); }
.sel:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
.ctl .sel { grid-column: 1 / -1; }
.ctl[hidden], .btn[hidden], .row[hidden] { display: none; }
.color-row { display: flex; align-items: center; gap: 10px; }
.color-row input[type=color] { width: 40px; height: 32px; padding: 0; border: 1px solid var(--line-strong); border-radius: 8px; background: none; cursor: pointer; }
.stage.checker { background-color: #fff; background-image: conic-gradient(#d9d9d6 25%, #fff 0 50%, #d9d9d6 0 75%, #fff 0); background-size: 22px 22px; }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.aprog { height: 4px; border-radius: 2px; background: var(--line-strong); overflow: hidden; }
.aprog i { display: block; height: 100%; width: 0; background: var(--ink); }
.rec-badge { position: absolute; right: 12px; top: 12px; display: inline-flex; align-items: center; gap: 8px; padding: 6px 12px 6px 10px; border-radius: 99px; background: rgba(20, 20, 20, .72); color: #fff; font: 600 12px var(--mono); pointer-events: none; -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); }
.rec-badge[hidden] { display: none; }
.rec-badge i { width: 9px; height: 9px; border-radius: 50%; background: #ff3b3b; animation: recblink 1s infinite; }
@keyframes recblink { 50% { opacity: .25; } }
body.anim-run .side section:not(#animSec), body.anim-run .side .brand, body.anim-run .side-donate { pointer-events: none; opacity: .5; }
body.anim-run #gl { pointer-events: none; }
body.anim-run .view-hints { display: none; }
.view-hints { position: absolute; left: 12px; right: 12px; bottom: 12px; display: flex; flex-wrap: wrap; gap: 6px; pointer-events: none; }
.status-note { margin: 0; font-size: 12.5px; color: var(--muted); line-height: 1.45; }
.steps-n { counter-reset: s; }
@media (hover: none), (max-width: 900px) { .mouse-hint { display: none; } }
@media (prefers-reduced-motion: reduce) { .rec-badge i { animation: none; } }

.sw button.orig { width: auto; height: 30px; padding: 0 12px; border: 1px solid var(--line-strong); border-radius: 99px; background: var(--panel); color: var(--ink); font: 500 12.5px var(--font); box-shadow: none; cursor: pointer; }
.sw button.orig[hidden] { display: none; }
.sw button.orig[aria-pressed="true"] { outline: 2px solid var(--ink); outline-offset: 2px; }