/* ColorNex colour tools: pickers, swatches, charts, palettes, gradients, contrast */
.tn-tool { background: transparent; border: 0; box-shadow: none; overflow: visible; display: flex; flex-direction: column; gap: 14px; }
.tn-tool [hidden] { display: none !important; }
.cn-checker { background-color: #fff; background-image: linear-gradient(45deg, #d6dbe1 25%, transparent 25%, transparent 75%, #d6dbe1 75%), linear-gradient(45deg, #d6dbe1 25%, transparent 25%, transparent 75%, #d6dbe1 75%); background-size: 14px 14px; background-position: 0 0, 7px 7px; }
.cn-opts { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 10px 14px; padding: 12px 14px; background: var(--elev); border: 1px solid var(--line); border-radius: var(--r-lg); box-shadow: var(--shadow-card); }
.cn-opts .tn-sel, .cn-opts .tn-num, .cn-opts .tn-chk { align-self: center; }
.cn-opts > .small.muted { align-self: center; }
.cn-head-row { display: flex; align-items: center; flex-wrap: wrap; gap: 8px 10px; margin-bottom: 10px; }
.cn-head-row > b { font-size: 15px; display: inline-flex; align-items: center; gap: 6px; }
.cn-section { margin: 0; }
.cn-acts { display: inline-flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.cn-two { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 14px; }
.cn-empty { padding: 24px; text-align: center; }
.mono { font-family: var(--font-mono); }
kbd { font-family: var(--font-mono); font-size: 11.5px; padding: 1px 6px; border: 1px solid var(--line-2); border-bottom-width: 2px; border-radius: 5px; background: var(--surface); }

/* colour field */
.cn-field { display: inline-flex; flex-direction: column; gap: 4px; min-width: 0; }
.cn-field-l { font-size: 12.5px; font-weight: 600; color: var(--muted); }
.cn-cin { display: inline-flex; align-items: center; gap: 0; height: 40px; border: 1px solid var(--line-2); border-radius: 10px; background: var(--bg); overflow: hidden; max-width: 100%; }
.cn-cin:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-100); }
.cn-cin-sw { position: relative; width: 40px; align-self: stretch; flex: none; cursor: pointer; border-right: 1px solid var(--line); background: linear-gradient(var(--c), var(--c)), #fff; }
.cn-cin-sw input { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; cursor: pointer; border: 0; padding: 0; }
.cn-cin-txt { border: 0; background: none; outline: none; height: 100%; padding: 0 10px; font-family: var(--font-mono); font-size: 14px; color: var(--text); width: 230px; max-width: 60vw; min-width: 0; }
.cn-cin-txt.bad { color: var(--danger); }
.cn-field-err { color: var(--danger); }

/* SV / hue / alpha picker */
.cn-picker { display: flex; flex-direction: column; gap: 12px; }
.cn-sv { position: relative; height: 230px; border-radius: 12px; cursor: crosshair; touch-action: none; outline: none;
  background: linear-gradient(to top, #000, transparent), linear-gradient(to right, #fff, var(--h, red)); }
.cn-sv:focus-visible { box-shadow: 0 0 0 3px var(--primary-100); }
.cn-knob { position: absolute; width: 20px; height: 20px; border-radius: 50%; border: 3px solid #fff; box-shadow: 0 0 0 1px rgba(0,0,0,.35), 0 2px 6px rgba(0,0,0,.35); transform: translate(-50%, -50%); pointer-events: none; }
.cn-bar { position: relative; height: 16px; border-radius: 99px; cursor: pointer; touch-action: none; outline: none; margin: 0 10px; }
.cn-bar::before { content: ""; position: absolute; inset: 0 -10px; border-radius: 99px; }
.cn-bar .cn-knob { top: 50%; }
.cn-bar:focus-visible::before { box-shadow: 0 0 0 3px var(--primary-100); }
.cn-hue::before { background: linear-gradient(90deg, #f00 0%, #ff0 16.66%, #0f0 33.33%, #0ff 50%, #00f 66.66%, #f0f 83.33%, #f00 100%); }
.cn-alpha::before { background-color: #fff; background-image: linear-gradient(45deg, #d6dbe1 25%, transparent 25%, transparent 75%, #d6dbe1 75%), linear-gradient(45deg, #d6dbe1 25%, transparent 25%, transparent 75%, #d6dbe1 75%); background-size: 10px 10px; background-position: 0 0, 5px 5px; }
.cn-alpha > span { position: absolute; inset: 0 -10px; border-radius: 99px; background: linear-gradient(90deg, transparent, var(--c, #000)); }
.cn-alpha .cn-knob { background: transparent !important; }

/* colour picker tool */
.cn-pick-grid { display: grid; grid-template-columns: minmax(260px, 340px) minmax(0, 1fr); gap: 14px; align-items: start; }
.cn-pick-left { display: flex; flex-direction: column; gap: 14px; }
.cn-pick-left .cn-field, .cn-pick-left .cn-cin { width: 100%; }
.cn-pick-left .cn-cin-txt { flex: 1; width: auto; }
.cn-pick-right { display: flex; flex-direction: column; gap: 14px; min-width: 0; }
.cn-quick { display: flex; flex-wrap: wrap; gap: 6px; }
.cn-dot { width: 24px; height: 24px; border-radius: 50%; border: 1px solid var(--line-2); background: var(--c); cursor: pointer; padding: 0; transition: transform .12s; }
.cn-dot:hover { transform: scale(1.15); }
.cn-preview { position: relative; min-height: 170px; border-radius: var(--r-lg); padding: 20px 22px; display: flex; flex-direction: column; justify-content: space-between; gap: 14px; color: var(--t);
  background: linear-gradient(var(--c), var(--c)), #fff; border: 1px solid var(--line); box-shadow: var(--shadow-card); }
.cn-preview-txt b { display: block; font-size: clamp(30px, 4.2vw, 46px); font-family: var(--font-mono); letter-spacing: -.02em; line-height: 1.1; }
.cn-preview-txt span { font-size: 15px; opacity: .85; }
.cn-preview-samples { display: flex; flex-wrap: wrap; gap: 8px; }
.cn-preview-samples span { padding: 5px 11px; border-radius: 8px; font-weight: 600; font-size: 14px; background: rgba(127,127,127,.12); }
.cn-sample-w { color: #fff; } .cn-sample-b { color: #000; }
.cn-preview-samples em { font-style: normal; font-weight: 500; opacity: .8; font-size: 12.5px; margin-left: 4px; }
.cn-pick-grid.compact .cn-sv { height: 200px; }
.cn-more-row { display: flex; justify-content: center; }
.cn-home-picker { margin-top: 18px; margin-bottom: 8px; }

/* code rows */
.cn-codes { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(330px, 100%), 1fr)); gap: 6px; }
.cn-codes.mini { grid-template-columns: 1fr; }
.cn-codes.big .cn-code code { font-size: 17px; }
.cn-code { display: flex; align-items: center; gap: 10px; min-height: 40px; padding: 6px 10px; border: 1px solid var(--line); border-radius: 10px; background: var(--surface); cursor: pointer; text-align: left; color: var(--text); min-width: 0; transition: border-color .12s, background .12s; }
.cn-code:hover { border-color: var(--primary); background: var(--primary-50); }
.cn-code-k { flex: none; width: 84px; font-size: 12px; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .02em; }
.cn-code code { flex: 1; min-width: 0; font-family: var(--font-mono); font-size: 13.5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; background: none; padding: 0; }
.cn-code .ico { color: var(--muted); flex: none; }
.cn-copied { outline: 2px solid var(--success) !important; outline-offset: 1px; }

/* swatch tiles + strips */
.cn-strip { display: grid; grid-template-columns: repeat(auto-fit, minmax(84px, 1fr)); gap: 6px; }
.cn-strip + .cn-strip { margin-top: 6px; }
.cn-strip.sm { grid-template-columns: repeat(auto-fit, minmax(70px, 1fr)); }
.cn-strip.wrap { grid-template-columns: repeat(auto-fill, minmax(84px, 1fr)); }
.cn-strip.scale { grid-template-columns: repeat(11, minmax(0, 1fr)); }
.cn-tile { position: relative; display: flex; flex-direction: column; justify-content: flex-end; align-items: flex-start; gap: 1px; min-height: 64px; padding: 8px; border-radius: 10px; border: 1px solid rgba(127,127,127,.25); cursor: pointer; text-align: left;
  color: var(--t); background: linear-gradient(var(--c), var(--c)), repeating-conic-gradient(#d6dbe1 0 25%, #fff 0 50%) 0 0 / 12px 12px; transition: transform .12s, box-shadow .12s; min-width: 0; }
.cn-tile:hover { transform: translateY(-2px); box-shadow: var(--shadow-pop); z-index: 1; }
.cn-tile b { font-family: var(--font-mono); font-size: 12.5px; font-weight: 600; }
.cn-tile span { font-size: 11.5px; opacity: .8; }
.cn-tile.base { outline: 3px solid var(--text); outline-offset: 2px; }
.cn-harm { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; }
.cn-harm > div { display: flex; flex-direction: column; gap: 6px; }
.cn-saved { display: flex; flex-wrap: wrap; gap: 8px; }
.cn-saved-item { position: relative; width: 96px; }
.cn-saved-item .cn-tile { width: 100%; }
.cn-x, .cn-use { position: absolute; top: 4px; width: 22px; height: 22px; border-radius: 50%; border: 0; background: rgba(0,0,0,.45); color: #fff; cursor: pointer; display: grid; place-items: center; font-size: 15px; line-height: 1; padding: 0; opacity: 0; transition: opacity .12s; z-index: 2; }
.cn-x { right: 4px; } .cn-use { right: 30px; } .cn-use .ico { width: 13px; height: 13px; }
.cn-saved-item:hover .cn-x, .cn-saved-item:hover .cn-use, .cn-x:focus-visible, .cn-use:focus-visible { opacity: 1; }
@media (hover: none) { .cn-x, .cn-use { opacity: 1; } }

/* colour wheel */
.cn-wheel-grid { display: grid; grid-template-columns: minmax(280px, 400px) minmax(0, 1fr); gap: 14px; align-items: start; }
.cn-wheel-card { display: flex; flex-direction: column; gap: 14px; }
.cn-wheel { position: relative; width: 100%; aspect-ratio: 1; touch-action: none; cursor: crosshair; }
.cn-wheel canvas { width: 100%; height: 100%; display: block; }
.cn-mark { position: absolute; width: 22px; height: 22px; border-radius: 50%; background: var(--c); border: 3px solid #fff; box-shadow: 0 0 0 1px rgba(0,0,0,.4), 0 2px 8px rgba(0,0,0,.35); transform: translate(-50%, -50%); pointer-events: none; }
.cn-mark.base { width: 30px; height: 30px; }
.cn-range { display: grid; grid-template-columns: auto 1fr 52px; align-items: center; gap: 10px; font-size: 13.5px; font-weight: 500; color: var(--text-2); }
.cn-range input { width: 100%; accent-color: var(--primary); }
.cn-range output { font-family: var(--font-mono); font-size: 13px; text-align: right; }
.cn-scheme { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; }
.cn-scheme-item { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.cn-scheme-sw { height: 120px; border-radius: 12px; border: 1px solid rgba(127,127,127,.25); background: var(--c); color: var(--t); display: flex; align-items: flex-end; padding: 10px; cursor: pointer; font-family: var(--font-mono); font-size: 15px; }
.cn-scheme-item .cn-code-k { width: 40px; }

/* image picker */
.cn-drop { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px; min-height: 280px; padding: 30px; border: 2px dashed var(--line-2); border-radius: var(--r-lg); background: var(--elev); text-align: center; transition: border-color .15s, background .15s; }
.cn-drop > .ico { width: 44px; height: 44px; color: var(--primary); }
.cn-drop b { font-size: 18px; }
.cn-drop.drag { border-color: var(--primary); background: var(--primary-50); }
.cn-drop-btns { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; margin-top: 6px; }
.cn-imgpick { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 14px; align-items: start; }
.cn-img-wrap { position: relative; padding: 10px; overflow: visible; }
.cn-img-stage { position: relative; cursor: crosshair; }
.cn-img-canvas { display: block; max-width: 100%; height: auto; max-height: 70vh; margin: 0 auto; border-radius: 8px; image-rendering: auto; }
.cn-loupe { position: absolute; z-index: 5; pointer-events: none; width: 121px; border-radius: 12px; overflow: hidden; border: 3px solid #fff; box-shadow: var(--shadow-pop); background: #fff; }
.cn-loupe canvas { display: block; width: 121px; height: 121px; image-rendering: pixelated; }
.cn-loupe::after { content: ""; position: absolute; left: 55px; top: 55px; width: 11px; height: 11px; outline: 2px solid #fff; box-shadow: 0 0 0 3px rgba(0,0,0,.5); }
.cn-loupe span { display: block; text-align: center; font: 600 12px var(--font-mono); padding: 3px; color: #111; }
.cn-img-side { display: flex; flex-direction: column; gap: 14px; min-width: 0; }
.cn-hover { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; font-family: var(--font-mono); font-size: 13.5px; }
.cn-hover i { width: 44px; height: 44px; border-radius: 10px; background: var(--c); border: 1px solid var(--line); flex: none; }
.cn-img-side .cn-codes { grid-template-columns: 1fr; }

/* lists (name finder, image palette) */
.cn-list { display: flex; flex-direction: column; gap: 6px; }
.cn-li { display: grid; grid-template-columns: 34px minmax(0, 1fr) auto; grid-template-rows: auto auto; column-gap: 10px; align-items: center; padding: 6px 10px; border: 1px solid var(--line); border-radius: 10px; background: var(--surface); cursor: pointer; text-align: left; color: var(--text); }
.cn-li:hover { border-color: var(--primary); }
.cn-li i { grid-row: span 2; width: 34px; height: 34px; border-radius: 8px; background: var(--c); border: 1px solid rgba(127,127,127,.3); }
.cn-li code { font-family: var(--font-mono); font-size: 12.5px; background: none; padding: 0; color: var(--text-2); }
.cn-li span { grid-column: 2 / 4; }
.cn-name-hero { display: grid; grid-template-columns: minmax(240px, 380px) minmax(0, 1fr); overflow: hidden; }
.cn-vs { display: grid; grid-template-columns: 1fr 1fr; min-height: 200px; }
.cn-vs > div { display: flex; flex-direction: column; justify-content: flex-end; padding: 14px; background: var(--c); color: var(--t); }
.cn-vs span { font-size: 12.5px; opacity: .85; } .cn-vs b { font-size: 17px; font-family: var(--font-mono); }
.cn-name-big { padding: 18px 20px; }
.cn-name-big h2 { margin: 0 0 6px; font-size: 32px; letter-spacing: -.02em; }
.cn-name-big .cn-codes { margin-top: 12px; }

/* mixer */
.cn-mix-range { width: 100%; height: 22px; -webkit-appearance: none; appearance: none; border-radius: 99px; background: linear-gradient(90deg, var(--a), var(--b)); outline: none; border: 1px solid var(--line); }
.cn-mix-range::-webkit-slider-thumb { -webkit-appearance: none; width: 26px; height: 26px; border-radius: 50%; background: #fff; border: 2px solid var(--text); cursor: pointer; box-shadow: var(--shadow-card); }
.cn-mix-range::-moz-range-thumb { width: 24px; height: 24px; border-radius: 50%; background: #fff; border: 2px solid var(--text); cursor: pointer; }
.cn-mix-result { display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 14px; margin-top: 14px; align-items: stretch; }
.cn-mix-sw { border-radius: 12px; background: var(--c); color: var(--t); display: flex; align-items: flex-end; padding: 12px; min-height: 110px; font-family: var(--font-mono); font-size: 18px; border: 1px solid var(--line); }
.cn-mix-result .cn-codes { grid-template-columns: 1fr 1fr; }

/* colour names */
.cn-search { display: inline-flex; align-items: center; gap: 8px; height: 38px; padding: 0 12px; border: 1px solid var(--line-2); border-radius: 10px; background: var(--bg); min-width: 0; flex: 1 1 240px; max-width: 420px; align-self: center; }
.cn-search:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-100); }
.cn-search input { border: 0; background: none; outline: none; flex: 1; min-width: 0; font-size: 14px; color: var(--text); }
.cn-search .ico { color: var(--muted); }
.cn-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.cn-chip-dot { width: 12px; height: 12px; border-radius: 50%; background: var(--c); border: 1px solid rgba(127,127,127,.4); margin-right: 6px; }
.cn-group-h { margin: 18px 0 8px; font-size: 17px; }
.cn-name-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 10px; }
.cn-name-card { border-radius: 12px; overflow: hidden; border: 1px solid var(--line); background: var(--elev); display: flex; flex-direction: column; }
.cn-name-sw { height: 92px; background: var(--c); color: var(--t); border: 0; display: flex; align-items: flex-end; padding: 10px; cursor: pointer; text-align: left; font-size: 14.5px; }
.cn-name-codes { display: flex; flex-direction: column; padding: 4px; gap: 2px; }
.cn-name-codes button { border: 0; background: none; text-align: left; padding: 4px 6px; border-radius: 6px; font-family: var(--font-mono); font-size: 12.5px; color: var(--text-2); cursor: pointer; }
.cn-name-codes button:hover { background: var(--surface-2); color: var(--primary); }
.cn-table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.cn-table th, .cn-table td { padding: 6px 10px; border-bottom: 1px solid var(--line); text-align: left; white-space: nowrap; }
.cn-table th { font-size: 12px; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); background: var(--surface); position: sticky; top: 0; }
.cn-table tr.bad td { color: var(--danger); background: var(--danger-bg); }
.cn-tdot { display: inline-block; width: 26px; height: 26px; border-radius: 7px; background: linear-gradient(var(--c), var(--c)), repeating-conic-gradient(#d6dbe1 0 25%, #fff 0 50%) 0 0 / 8px 8px; border: 1px solid rgba(127,127,127,.35); vertical-align: middle; }
.cn-link { border: 0; background: none; padding: 2px 4px; border-radius: 5px; cursor: pointer; color: var(--text); font-size: 13.5px; }
.cn-link:hover { background: var(--primary-50); color: var(--primary); }

/* web safe */
.cn-websafe { display: grid; grid-template-columns: repeat(18, minmax(0, 1fr)); gap: 3px; }
.cn-ws { aspect-ratio: 1.25; border: 0; border-radius: 5px; background: var(--c); color: var(--t); font: 600 10.5px var(--font-mono); cursor: pointer; padding: 0; display: grid; place-items: center; transition: transform .1s; }
.cn-ws:hover { transform: scale(1.18); z-index: 1; box-shadow: var(--shadow-pop); position: relative; }
.cn-websafe.nocodes .cn-ws b { display: none; }

/* shade charts */
.cn-shade-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 12px; }
.cn-shade-col { overflow: hidden; padding: 0; display: flex; flex-direction: column; }
.cn-shade-head { position: relative; padding: 16px 14px 12px; background: var(--c); color: var(--t); display: flex; flex-direction: column; gap: 2px; min-height: 96px; justify-content: flex-end; }
.cn-shade-head b { font-size: 17px; } .cn-shade-head span { font: 12.5px var(--font-mono); opacity: .85; }
.cn-shade-exp { position: absolute; top: 8px; right: 8px; border: 0; background: rgba(0,0,0,.18); color: inherit; width: 30px; height: 30px; border-radius: 8px; cursor: pointer; display: grid; place-items: center; }
.cn-shade-row { display: flex; justify-content: space-between; align-items: center; border: 0; padding: 8px 14px; background: var(--c); color: var(--t); cursor: pointer; font: 500 13px var(--font-mono); }
.cn-shade-row:hover { filter: brightness(1.06); box-shadow: inset 4px 0 0 var(--t); }
.cn-shade-row.accent:first-of-type, .cn-shade-row:not(.accent) + .cn-shade-row.accent { margin-top: 6px; }
.cn-shade-row b { font-weight: 600; }

/* flat ui */
.cn-flat { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 12px; }
.cn-flat-card { border-radius: 14px; overflow: hidden; border: 1px solid var(--line); background: var(--elev); }
.cn-flat-sw { width: 100%; height: 130px; border: 0; background: var(--c); color: var(--t); display: flex; flex-direction: column; justify-content: flex-end; align-items: flex-start; padding: 12px; cursor: pointer; text-align: left; }
.cn-flat-sw b { font-size: 16px; } .cn-flat-sw span { font: 13px var(--font-mono); opacity: .85; }

/* converters */
.cn-conv { display: grid; grid-template-columns: minmax(0, 1fr) 36px minmax(0, 1fr); gap: 10px; align-items: stretch; }
.cn-conv-in, .cn-conv-out { display: flex; flex-direction: column; gap: 12px; min-width: 0; }
.cn-conv-in .cn-field, .cn-conv-in .cn-cin { width: 100%; } .cn-conv-in .cn-cin-txt { flex: 1; width: auto; }
.cn-conv-arrow { display: grid; place-items: center; color: var(--muted); }
.cn-sliders { display: flex; flex-direction: column; gap: 10px; }
.cn-sl { display: grid; grid-template-columns: 110px 1fr 76px; align-items: center; gap: 10px; font-size: 13.5px; font-weight: 500; color: var(--text-2); }
.cn-sl input[type=range] { -webkit-appearance: none; appearance: none; width: 100%; height: 14px; border-radius: 99px; background: var(--track, var(--line)); border: 1px solid var(--line); outline: none; }
.cn-sl input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; width: 22px; height: 22px; border-radius: 50%; background: #fff; border: 2px solid var(--text); box-shadow: var(--shadow-card); cursor: pointer; }
.cn-sl input[type=range]::-moz-range-thumb { width: 20px; height: 20px; border-radius: 50%; background: #fff; border: 2px solid var(--text); cursor: pointer; }
.cn-sl input[type=range]:focus-visible { box-shadow: 0 0 0 3px var(--primary-100); }
.cn-sl input[type=number] { height: 34px; border: 1px solid var(--line); border-radius: 9px; background: var(--bg); color: var(--text); padding: 0 8px; font-family: var(--font-mono); font-size: 13.5px; width: 100%; }
.cn-conv-big { min-height: 120px; border-radius: 12px; display: flex; align-items: flex-end; padding: 14px; color: var(--t); border: 1px solid var(--line);
  background: linear-gradient(var(--c), var(--c)), repeating-conic-gradient(#d6dbe1 0 25%, #fff 0 50%) 0 0 / 14px 14px; }
.cn-conv-big b { font: 600 clamp(18px, 2.4vw, 26px) var(--font-mono); word-break: break-all; }
.cn-conv-out .cn-codes { grid-template-columns: 1fr; }
.cn-formula p { margin: 6px 0 0; color: var(--text-2); font-size: 14.5px; }
.cn-conv-list { display: grid; grid-template-columns: minmax(240px, 340px) minmax(0, 1fr); gap: 14px; align-items: start; }
.cn-list-ta { width: 100%; min-height: 300px; font-family: var(--font-mono); font-size: 13.5px; }

/* palette generator */
.cn-stepper { display: inline-flex; align-items: center; gap: 4px; border: 1px solid var(--line); border-radius: 10px; padding: 2px; align-self: center; }
.cn-stepper span { font-size: 13.5px; font-weight: 600; min-width: 64px; text-align: center; }
.cn-pal { display: flex; height: min(56vh, 460px); min-height: 300px; border-radius: var(--r-lg); overflow: hidden; border: 1px solid var(--line); box-shadow: var(--shadow-card); }
.cn-pal-col { flex: 1; min-width: 0; background: var(--c); color: var(--t); display: flex; flex-direction: column; justify-content: flex-end; align-items: center; padding: 14px 6px 22px; position: relative; transition: flex .2s var(--ease); }
.cn-pal-tools { display: flex; flex-direction: column; gap: 4px; opacity: 0; transition: opacity .15s; margin-bottom: auto; margin-top: 12px; }
.cn-pal-col:hover .cn-pal-tools, .cn-pal-col:focus-within .cn-pal-tools, .cn-pal-col.locked .cn-pal-tools { opacity: 1; }
.cn-pal-col.locked .cn-pal-tools > :not([data-a="lock"]) { opacity: .0; } .cn-pal-col.locked:hover .cn-pal-tools > * { opacity: 1; }
.cn-pal-tools button, .cn-pal-tools label { width: 36px; height: 36px; border-radius: 10px; border: 0; background: rgba(127,127,127,.18); color: inherit; display: grid; place-items: center; cursor: pointer; font-size: 18px; position: relative; padding: 0; }
.cn-pal-tools button:hover, .cn-pal-tools label:hover { background: rgba(127,127,127,.32); }
.cn-pal-tools button:disabled { opacity: .3; cursor: default; }
.cn-pal-tools input[type=color] { position: absolute; inset: 0; opacity: 0; width: 100%; height: 100%; cursor: pointer; }
.cn-pal-hex { border: 0; background: none; color: inherit; cursor: pointer; display: flex; flex-direction: column; align-items: center; gap: 2px; padding: 6px 8px; border-radius: 10px; max-width: 100%; }
.cn-pal-hex:hover { background: rgba(127,127,127,.18); }
.cn-pal-hex b { font: 700 clamp(15px, 1.8vw, 24px) var(--font-mono); letter-spacing: .02em; }
.cn-pal-hex span { font-size: 12px; opacity: .8; text-align: center; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 100%; }
@media (hover: none) { .cn-pal-tools { opacity: 1; } }
.cn-mock-page { border-radius: 12px; overflow: hidden; border: 1px solid var(--line); }
.cn-mock-nav { display: flex; gap: 18px; padding: 12px 18px; font-size: 14px; align-items: center; } .cn-mock-nav b { margin-right: auto; }
.cn-mock-body { padding: 22px 18px 10px; } .cn-mock-body h3 { margin: 0 0 6px; font-size: 22px; } .cn-mock-body p { margin: 0 0 14px; opacity: .85; font-size: 14px; }
.cn-mock-btn { display: inline-block; padding: 8px 16px; border-radius: 8px; font-weight: 600; font-size: 14px; margin-right: 8px; }
.cn-mock-btn.ghost { border: 2px solid; background: transparent; }
.cn-mock-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; padding: 14px 18px 18px; }
.cn-mock-cards div { border-radius: 10px; padding: 26px 10px 10px; font: 600 12.5px var(--font-mono); }

/* gradient */
.cn-grad-grid { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 14px; align-items: start; }
.cn-grad-preview { position: relative; height: 300px; border-radius: var(--r-lg); border: 1px solid var(--line); box-shadow: var(--shadow-card); }
.cn-grad-full { position: absolute; right: 12px; top: 12px; background: rgba(255,255,255,.85); color: #111; }
.cn-grad-bar { position: relative; height: 34px; margin: 14px 12px 0; border-radius: 8px; border: 1px solid var(--line); cursor: copy; touch-action: none; }
.cn-stop { position: absolute; top: 50%; width: 22px; height: 40px; transform: translate(-50%, -50%); border-radius: 7px; border: 3px solid #fff; background: var(--c); box-shadow: 0 0 0 1px rgba(0,0,0,.35), 0 2px 6px rgba(0,0,0,.3); cursor: grab; padding: 0; }
.cn-stop.on { box-shadow: 0 0 0 2px var(--text), 0 2px 8px rgba(0,0,0,.35); z-index: 2; }
.cn-css { margin: 0; padding: 12px; border-radius: 10px; background: var(--code-bg); font: 13px/1.6 var(--font-mono); white-space: pre-wrap; word-break: break-all; color: var(--text); }
.cn-grad-side { display: flex; flex-direction: column; gap: 12px; }
.cn-grad-side .cn-head-row { margin: 6px 0 0; }
.cn-grad-side .cn-field, .cn-grad-side .cn-cin { width: 100%; } .cn-grad-side .cn-cin-txt { flex: 1; width: auto; }
.cn-angles { display: flex; flex-wrap: wrap; gap: 4px; } .cn-angles .chip { padding: 4px 10px; } .cn-angles span { display: inline-block; }
.cn-presets { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; }
.cn-preset { height: 42px; border-radius: 8px; border: 1px solid var(--line); cursor: pointer; padding: 0; }
.cn-preset:hover { transform: translateY(-1px); box-shadow: var(--shadow-pop); }
.cn-fullscreen { position: fixed; inset: 0; z-index: 1000; display: flex; align-items: flex-end; justify-content: center; padding: 24px; cursor: zoom-out; }
.cn-fullscreen span { background: rgba(0,0,0,.55); color: #fff; padding: 8px 14px; border-radius: 10px; font: 13px var(--font-mono); max-width: 100%; word-break: break-all; }

/* random */
.cn-random { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
.cn-rnd { position: relative; border-radius: 12px; overflow: hidden; background: var(--c); color: var(--t); border: 1px solid var(--line); }
.cn-rnd button { width: 100%; min-height: 110px; border: 0; background: none; color: inherit; display: flex; flex-direction: column; justify-content: flex-end; align-items: flex-start; padding: 10px; cursor: pointer; text-align: left; }
.cn-rnd b { font: 600 16px var(--font-mono); } .cn-rnd span { font: 12px var(--font-mono); opacity: .8; }
.cn-rnd a { position: absolute; top: 8px; right: 8px; color: inherit; width: 30px; height: 30px; border-radius: 8px; display: grid; place-items: center; background: rgba(127,127,127,.2); }

/* image palette */
.cn-imgpal { display: grid; grid-template-columns: minmax(0, 1fr) minmax(300px, 420px); gap: 14px; align-items: start; }
.cn-imgpal-img { padding: 10px; } .cn-imgpal-img img { display: block; max-width: 100%; max-height: 70vh; margin: 0 auto; border-radius: 8px; }
.cn-share { display: flex; height: 56px; border-radius: 10px; overflow: hidden; margin-bottom: 12px; border: 1px solid var(--line); }
.cn-share i { background: var(--c); min-width: 6px; }
.cn-imgpal .cn-acts { margin-top: 12px; }

/* contrast */
.cn-contrast { display: grid; grid-template-columns: 300px minmax(0, 1fr); gap: 14px; }
.cn-ratio { padding: 18px; display: flex; flex-direction: column; gap: 6px; }
.cn-ratio-num { font-size: 54px; line-height: 1; letter-spacing: -.03em; font-weight: 800; }
.cn-ratio-num small { font-size: 22px; font-weight: 600; color: var(--muted); margin-left: 2px; }
.cn-grade { align-self: flex-start; padding: 4px 10px; border-radius: 99px; font-weight: 600; font-size: 13px; }
.g-AAA, .g-AA { background: var(--success-bg); color: var(--success); } .g-AALarge { background: var(--warning-bg); color: var(--warning); } .g-Fail { background: var(--danger-bg); color: var(--danger); }
.cn-ratio-bar { position: relative; height: 10px; border-radius: 99px; margin: 14px 0 18px; background: linear-gradient(90deg, #DC2626 0 10%, #D97706 10% 17.5%, #16A34A 17.5% 30%, #15803D 30%); }
.cn-ratio-bar i { position: absolute; top: 50%; width: 16px; height: 16px; border-radius: 50%; background: var(--elev); border: 3px solid var(--text); transform: translate(-50%, -50%); }
.cn-ratio-bar span { position: absolute; top: 14px; transform: translateX(-50%); font-size: 11px; color: var(--muted); }
.cn-sample { padding: 22px; border: 1px solid var(--line); }
.cn-sample p { margin: 0 0 10px; } .cn-s-normal { font-size: 16px; } .cn-s-large { font-size: 24px; } .cn-s-bold { font-size: 19px; font-weight: 700; }
.cn-s-ui { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.cn-s-btn { padding: 8px 16px; border-radius: 8px; background: var(--fg); font-weight: 600; } .cn-s-btn { color: var(--sbg, inherit); filter: none; }
.cn-sample .cn-s-btn { color: inherit; background: transparent; border: 2px solid var(--fg); }
.cn-s-icon .ico { width: 28px; height: 28px; fill: var(--fg); stroke: var(--fg); }
.cn-s-input { padding: 7px 12px; border: 2px solid var(--fg); border-radius: 8px; font-size: 14px; }
.cn-checks { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 10px; }
.cn-check { display: grid; grid-template-columns: auto 1fr; grid-template-rows: auto auto; column-gap: 10px; align-items: center; padding: 12px; border-radius: 12px; border: 1px solid var(--line); background: var(--elev); }
.cn-check .cn-badge { grid-row: span 2; padding: 4px 10px; border-radius: 8px; font-weight: 700; font-size: 13px; }
.cn-check.ok .cn-badge { background: var(--success-bg); color: var(--success); } .cn-check.no .cn-badge { background: var(--danger-bg); color: var(--danger); }
.cn-sugs { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 10px; }
.cn-sug { display: flex; align-items: center; gap: 10px; padding: 10px; border: 1px solid var(--line); border-radius: 12px; }
.cn-sug > div { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.cn-sug-sw { width: 48px; height: 48px; border-radius: 10px; display: grid; place-items: center; font-weight: 800; font-size: 18px; border: 1px solid var(--line); flex: none; }

/* colour blindness */
.cn-cvd-in textarea { width: 100%; font-family: var(--font-mono); font-size: 13.5px; min-height: 76px; }
.cn-cvd { display: flex; flex-direction: column; gap: 8px; margin-top: 14px; }
.cn-cvd-row { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 12px; align-items: center; padding: 10px; }
.cn-cvd-l { display: flex; flex-direction: column; }
.cn-cvd-img { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 12px; }
.cn-cvd-img .cn-span { grid-column: 1 / -1; margin: 0; }
.cn-cvd-img figure { margin: 0; padding: 8px; display: flex; flex-direction: column; gap: 6px; }
.cn-cvd-img canvas { width: 100%; height: auto; border-radius: 8px; display: block; }
.cn-cvd-img figcaption { display: flex; flex-direction: column; }

/* export modal */
.cn-export { display: flex; flex-direction: column; gap: 10px; }
.cn-export-ta { width: 100%; min-height: 220px; font-family: var(--font-mono); font-size: 13px; }
.cn-export-sw { display: flex; height: 26px; border-radius: 8px; overflow: hidden; } .cn-export-sw i { flex: 1; background: var(--c); }

/* hero */
.cn-hero h1 .gradient-text { padding-right: .05em; }

/* responsive */
@media (max-width: 1100px) {
  .cn-grad-grid, .cn-imgpick, .cn-imgpal { grid-template-columns: minmax(0, 1fr); }
  .cn-websafe { grid-template-columns: repeat(12, minmax(0, 1fr)); }
}
@media (max-width: 860px) {
  .cn-pick-grid, .cn-wheel-grid, .cn-contrast, .cn-name-hero, .cn-conv-list { grid-template-columns: minmax(0, 1fr); }
  .cn-conv { grid-template-columns: minmax(0, 1fr); } .cn-conv-arrow { transform: rotate(90deg); height: 24px; }
  .cn-mix-result { grid-template-columns: minmax(0, 1fr); } .cn-mix-result .cn-codes { grid-template-columns: 1fr; }
  .cn-cvd-row { grid-template-columns: minmax(0, 1fr); }
  .cn-strip.scale { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .cn-websafe { grid-template-columns: repeat(9, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .cn-pal { flex-direction: column; height: auto; }
  .cn-pal-col { flex-direction: row; justify-content: space-between; padding: 10px 12px; min-height: 76px; }
  .cn-pal-tools { flex-direction: row; margin: 0; order: 2; opacity: 1; }
  .cn-pal-tools button, .cn-pal-tools label { width: 32px; height: 32px; }
  .cn-pal-hex { align-items: flex-start; }
  .cn-pal-tools > [data-a="left"], .cn-pal-tools > [data-a="right"], .cn-pal-tools > [data-a="shade"] { display: none; }
  .cn-codes { grid-template-columns: minmax(0, 1fr); }
  .cn-code-k { width: 78px; }
  .cn-sl { grid-template-columns: 1fr 70px; } .cn-sl > span { grid-column: 1 / -1; }
  .cn-cin-txt { width: 170px; }
  .cn-websafe { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .cn-mock-cards { grid-template-columns: repeat(2, 1fr); }
  .cn-sv { height: 200px; }
  .cn-name-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
}