:root { color-scheme: dark; --ink: #f4f1e8; --muted: #aaa79e; --panel: #171816; --line: #34362f; --accent: #e8ff65; --danger: #ff927f; }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: #0d0e0c; color: var(--ink); font: 16px/1.55 ui-sans-serif, system-ui, sans-serif; }
.site-header { display: flex; justify-content: space-between; align-items: center; padding: 1.1rem clamp(1.25rem, 5vw, 5rem); border-bottom: 1px solid var(--line); }
.brand { color: var(--ink); text-decoration: none; font-weight: 800; letter-spacing: -.02em; }.brand-mark { color: var(--accent); }.tagline,.muted { color: var(--muted); }
.site-nav { display: flex; gap: 1.5rem; margin-left: auto; margin-right: 2rem; }.site-nav a { color: var(--muted); text-decoration: none; }.site-nav a:hover,.site-nav a:focus-visible { color: var(--ink); }
.user-menu { position: relative; }
.user-menu summary { display: flex; align-items: center; gap: .65rem; color: var(--ink); cursor: pointer; list-style: none; }
.user-menu summary::-webkit-details-marker { display: none; }
.user-menu summary::after { content: ''; width: .45rem; height: .45rem; border-right: 1.5px solid var(--muted); border-bottom: 1.5px solid var(--muted); transform: translateY(-.15rem) rotate(45deg); transition: transform .16s ease; }
.user-menu[open] summary::after { transform: translateY(.1rem) rotate(225deg); }
.user-menu summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 5px; border-radius: 4px; }
.user-avatar { display: grid; place-items: center; width: 2rem; height: 2rem; overflow: hidden; border: 1px solid #ffffff40; border-radius: 50%; background: #ffffff16; color: var(--ink); font-size: .8rem; font-weight: 800; }
.user-menu-panel { position: absolute; z-index: 10; top: calc(100% + .75rem); right: 0; width: max-content; min-width: 12rem; padding: .45rem; border: 1px solid var(--line); border-radius: 10px; background: var(--panel); box-shadow: 0 18px 60px #000a; }
.user-menu-panel a,.user-menu-panel button { display: flex; align-items: center; gap: .7rem; width: 100%; padding: .7rem .8rem; border: 0; border-radius: 6px; background: transparent; color: var(--ink); font: inherit; font-weight: 650; text-align: left; text-decoration: none; }
.user-menu-panel a:hover,.user-menu-panel a:focus-visible,.user-menu-panel button:hover,.user-menu-panel button:focus-visible { outline: 0; background: #ffffff12; }
.user-menu-panel a span,.user-menu-panel button span { width: 1rem; color: var(--muted); text-align: center; }
.user-menu-panel form { margin: .35rem -.45rem -.45rem; padding: .45rem; border-top: 1px solid var(--line); }
.user-menu-panel form button { color: var(--danger); cursor: pointer; }
.shell { width: min(1080px, calc(100% - 2.5rem)); margin: 0 auto; padding: clamp(3rem, 8vw, 7rem) 0; }
.hero { display: grid; grid-template-columns: 1.2fr .8fr; gap: clamp(2rem, 6vw, 6rem); align-items: center; }
h1 { max-width: 12ch; margin: .2rem 0 1rem; font-size: clamp(3rem, 8vw, 6.5rem); line-height: .92; letter-spacing: -.065em; } h2 { margin-top: 0; }
.eyebrow { color: var(--accent); text-transform: uppercase; letter-spacing: .16em; font-size: .75rem; font-weight: 800; }.lede { max-width: 58ch; color: var(--muted); font-size: 1.15rem; }
.card,.metric { padding: 1.5rem; background: var(--panel); border: 1px solid var(--line); border-radius: 14px; box-shadow: 0 18px 60px #0006; }
label { display: grid; gap: .45rem; margin: 1rem 0; color: var(--muted); font-size: .85rem; } input,select,textarea { width: 100%; padding: .8rem; border: 1px solid var(--line); border-radius: 7px; background: #0f100e; color: var(--ink); font: inherit; } input,select { min-height: 3.15rem; } textarea { resize: vertical; }
input[type="color"] { min-height: 2.75rem; padding: .25rem; background: transparent; color-scheme: light; cursor: pointer; }
input[type="color"]::-webkit-color-swatch-wrapper { padding: 0; }
input[type="color"]::-webkit-color-swatch { border: 0; border-radius: 4px; }
input[type="color"]::-moz-color-swatch { border: 0; border-radius: 4px; }
button,.button { display: inline-block; padding: .85rem 1.1rem; border: 0; border-radius: 7px; background: var(--accent); color: #111; font-weight: 800; text-decoration: none; cursor: pointer; }
.button.secondary { border: 1px solid var(--line); background: transparent; color: var(--ink); }.button[hidden] { display: none; } button:disabled { cursor: wait; opacity: .65; }
.stack { display: grid; gap: 1.5rem; }.narrow { max-width: 760px; }.metrics { display: grid; grid-template-columns: repeat(3,1fr); gap: 1rem; }.metric span { display: block; color: var(--muted); }.metric strong { font-size: 2.4rem; }.secret { overflow: auto; padding: 1.25rem; border: 1px solid var(--accent); border-radius: 8px; background: #050604; }.row { display: flex; justify-content: space-between; gap: 1rem; padding: .8rem 0; border-top: 1px solid var(--line); }.alert { color: var(--danger); }
.actions,.output-actions { display: flex; flex-wrap: wrap; gap: .75rem; align-items: center; margin-top: 1.75rem; }
.home-hero { min-height: 56vh; }.hero-code { display: flex; position: relative; justify-content: center; align-items: stretch; gap: clamp(4px, 1vw, 10px); height: 280px; padding: 2.5rem; overflow: hidden; border: 1px solid var(--line); border-radius: 20px; background: var(--ink); box-shadow: 0 25px 80px #0009; transform: rotate(2deg); }.hero-code span { width: 4%; background: #111; }.hero-code span:nth-child(2),.hero-code span:nth-child(5),.hero-code span:nth-child(7) { width: 9%; }.hero-code strong { position: absolute; bottom: .7rem; color: #111; font: .75rem ui-monospace, monospace; letter-spacing: .2em; }
.feature-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1rem; margin: 6rem 0; }.section-heading,.page-intro { max-width: 760px; margin-bottom: 3rem; }.section-heading h2,.page-intro h1 { max-width: 14ch; font-size: clamp(2.5rem, 6vw, 5rem); }.section-heading a { color: var(--accent); }
.barcode-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 1.25rem; }.barcode-card { display: grid; grid-template-columns: minmax(150px,.8fr) 1.2fr; gap: 1.5rem; align-items: center; }.barcode-preview { display: grid; place-items: center; min-height: 180px; padding: 1rem; overflow: hidden; border-radius: 9px; background: #fff; }.barcode-preview img { display: block; max-width: 100%; max-height: 170px; }.barcode-card h2 { margin: .55rem 0; }.barcode-card p { margin: .4rem 0; }.barcode-features { color: var(--accent); font-size: .8rem; }.pill,.status { display: inline-block; padding: .2rem .5rem; border-radius: 99px; background: #ffffff12; color: var(--muted); font-size: .7rem; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }.cta { display: flex; justify-content: space-between; align-items: center; gap: 2rem; margin-top: 4rem; }
.playground { display: grid; grid-template-columns: minmax(300px,.72fr) minmax(0,1.28fr); gap: 1.25rem; align-items: start; }.playground-controls { position: sticky; top: 1rem; }.control-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: .75rem; }.control-grid + .control-grid { grid-template-columns: repeat(2,1fr); }.control-grid input,.control-grid select { height: 3.15rem; }.control-grid select { appearance: none; -webkit-appearance: none; padding-right: 2.35rem; background-image: linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%); background-position: calc(100% - 1rem) calc(50% - 2px),calc(100% - .7rem) calc(50% - 2px); background-repeat: no-repeat; background-size: .32rem .32rem,.32rem .32rem; }.output-stage { display: grid; place-items: center; min-height: 470px; padding: 2rem; overflow: auto; border-radius: 9px; background: #fff; }.output-stage canvas,.output-stage svg { display: block; max-width: 100%; height: auto; }.playground-output .output-actions { justify-content: flex-end; }
.output-stage [data-styled-output] { display: block; max-width: 100%; height: auto; }.output-stage [hidden] { display: none; }.qr-controls { margin: 1.25rem 0; padding: 0 1rem .5rem; border: 1px solid var(--line); border-radius: 9px; }.qr-controls legend { padding: 0 .4rem; color: var(--accent); font-size: .75rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }.qr-controls p { font-size: .8rem; }
.picture-controls { padding-top: .25rem; border-top: 1px solid var(--line); }.picture-controls label { grid-template-columns: 1fr auto; align-items: center; }.picture-controls output { color: var(--ink); font-variant-numeric: tabular-nums; }.picture-controls input[type="range"] { grid-column: 1 / -1; min-height: 1.4rem; height: 1.4rem; padding: 0; accent-color: var(--accent); }
.stroke-controls { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; }.stroke-controls label { display: grid; grid-template-columns: 1fr; }.stroke-controls input { min-height: 3.15rem; height: 3.15rem; }
.form-status[hidden] { display: none; }.result-tabs { display: flex; gap: .35rem; margin: -.3rem 0 1.25rem; overflow-x: auto; border-bottom: 1px solid var(--line); }.result-tabs button { padding: .65rem .85rem; border-radius: 6px 6px 0 0; background: transparent; color: var(--muted); white-space: nowrap; }.result-tabs button[aria-selected="true"] { background: #ffffff0d; color: var(--accent); }.code-example { min-height: 470px; margin: 0; padding: 1.5rem; overflow: auto; border-radius: 9px; background: #090a08; color: #dce7b2; font: .82rem/1.65 ui-monospace, SFMono-Regular, Menlo, monospace; white-space: pre-wrap; word-break: break-word; }.playground-output [data-panel][hidden] { display: none; }
.code-example .token.comment,.code-example .token.prolog,.code-example .token.doctype { color: #777d70; font-style: italic; }.code-example .token.keyword,.code-example .token.selector,.code-example .token.important { color: #ff7ab2; }.code-example .token.string,.code-example .token.char,.code-example .token.attr-value { color: #e8ff65; }.code-example .token.function,.code-example .token.class-name,.code-example .token.builtin { color: #82d2ff; }.code-example .token.number,.code-example .token.boolean,.code-example .token.constant { color: #c7a0ff; }.code-example .token.operator,.code-example .token.entity,.code-example .token.url { color: #ffca72; }.code-example .token.variable,.code-example .token.property,.code-example .token.parameter { color: #9ee7c5; }.code-example .token.punctuation { color: #b8bbb2; }
.sample-row { display: grid; grid-template-columns: minmax(150px,.35fr) minmax(260px,1fr) auto; gap: 1rem; align-items: end; padding: 1rem 0; border-top: 1px solid var(--line); }.sample-row label { margin: 0; }.sample-row button { margin-bottom: 0; }.sample-type-picker { margin-bottom: 2rem; }
.key-summary { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }.key-summary div { display: grid; gap: .4rem; }.key-summary span,.key-row small { color: var(--muted); }.key-row { display: grid; gap: .5rem; padding: 1rem 0; border-top: 1px solid var(--line); }.key-row div { display: flex; justify-content: space-between; align-items: center; }.status.active { background: #e8ff6522; color: var(--accent); }.status.inactive { color: var(--danger); }
@media (max-width: 900px) { .feature-grid,.barcode-grid { grid-template-columns: 1fr; }.playground { grid-template-columns: 1fr; }.playground-controls { position: static; } }
@media (max-width: 720px) { .tagline,.user-name { display: none; }.site-nav { gap: .8rem; margin-right: 1rem; }.site-nav a { font-size: .85rem; }.hero { grid-template-columns: 1fr; }.metrics { grid-template-columns: 1fr; } h1 { font-size: 3.5rem; } .row { flex-direction: column; }.hero-code { height: 190px; }.barcode-card { grid-template-columns: 1fr; }.cta { align-items: flex-start; flex-direction: column; }.output-stage { min-height: 320px; padding: 1rem; }.sample-row { grid-template-columns: 1fr; } }
@media (prefers-reduced-motion: reduce) { .user-menu summary::after { transition: none; } }