/* Pixelkin — dark, modern, gaming/AI presentation. One stylesheet, design tokens on :root. */
:root {
  color-scheme: dark;
  /* tier 1 */
  --ink-900: #070910; --ink-800: #0b0d15; --ink-700: #10131d; --ink-600: #161a27; --ink-500: #1d2231; --ink-400: #2a3042;
  --mist-100: #eef1fa; --mist-200: #c9d0e3; --mist-300: #9aa3bb; --mist-400: #6c748c;
  --teal: #2de2c6; --violet: #8b5cf6; --amber: #ffb347; --rose: #ff5c8a; --lime: #9be15d;
  /* tier 2 */
  --bg: var(--ink-800); --surface: var(--ink-700); --surface-2: var(--ink-600); --surface-3: var(--ink-500);
  --line: color-mix(in oklab, var(--mist-100) 9%, transparent); --line-strong: color-mix(in oklab, var(--mist-100) 16%, transparent);
  --text: var(--mist-100); --text-2: var(--mist-200); --muted: var(--mist-300); --faint: var(--mist-400);
  --accent: var(--teal); --accent-2: var(--violet); --accent-ink: #06261f;
  --ok: var(--lime); --warn: var(--amber); --bad: var(--rose);
  --grad: linear-gradient(120deg, var(--teal), var(--violet));
  --radius: 10px; --radius-lg: 16px;
  --max: 1120px; --prose: 760px;
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --display: "Space Grotesk", "Space Grotesk Fallback", var(--font);
  --pixel: "Pixelify Sans", "Space Grotesk", var(--font);
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --checker: repeating-conic-gradient(color-mix(in oklab, var(--mist-100) 7%, transparent) 0 25%, transparent 0 50%);
  accent-color: var(--accent);
  scrollbar-color: var(--ink-400) var(--ink-800);
}
@font-face { font-family: "Space Grotesk Fallback"; src: local("Arial"); size-adjust: 98%; ascent-override: 95%; descent-override: 25%; line-gap-override: 0%; }

html { background: var(--bg); color: var(--text); font: 17px/1.6 var(--font); -webkit-text-size-adjust: 100%; }
body { margin: 0; min-height: 100dvh; overflow-x: clip; position: relative; isolation: isolate;
  background:
    radial-gradient(1100px 560px at 12% -8%, color-mix(in oklab, var(--violet) 26%, transparent), transparent 70%),
    radial-gradient(800px 460px at 96% -4%, color-mix(in oklab, var(--teal) 20%, transparent), transparent 70%),
    radial-gradient(900px 600px at 50% 110%, color-mix(in oklab, var(--violet) 10%, transparent), transparent 70%),
    var(--bg);
  background-attachment: fixed, fixed, fixed, scroll;
}
/* a pixel grid that fades out below the hero, and a 1-px grain so the dark is not flat */
body::before { content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    repeating-linear-gradient(0deg, color-mix(in oklab, var(--mist-100) 5%, transparent) 0 1px, transparent 1px 32px),
    repeating-linear-gradient(90deg, color-mix(in oklab, var(--mist-100) 5%, transparent) 0 1px, transparent 1px 32px);
  -webkit-mask-image: linear-gradient(to bottom, #000 0, #000 220px, transparent 820px); mask-image: linear-gradient(to bottom, #000 0, #000 220px, transparent 820px);
}
body::after { content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: 0.07; image-rendering: pixelated;
  background: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='180' height='180'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 0.6 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>") 0 0 / 180px 180px;
}
a { color: inherit; text-decoration-color: color-mix(in oklab, var(--accent) 60%, transparent); text-underline-offset: 3px; }
a:hover { color: var(--accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
img { max-width: 100%; height: auto; }
.pixel, canvas.pixel, img.pixel { image-rendering: pixelated; image-rendering: crisp-edges; }
::selection { background: color-mix(in oklab, var(--accent) 40%, transparent); }
.skip { position: absolute; left: -999px; top: 8px; background: var(--accent); color: var(--accent-ink); padding: 6px 10px; }
.skip:focus { left: 8px; }

/* ---- header ---- */
header.top { position: sticky; top: 0; z-index: 10; backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  background: color-mix(in oklab, var(--bg) 78%, transparent); border-bottom: 1px solid var(--line); }
header.top .bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; max-width: var(--max); margin: 0 auto; padding: 12px 20px; }
header.top .logo { flex-shrink: 0; display: inline-flex; align-items: center; gap: 10px; font: 600 1.45rem/1 var(--pixel); letter-spacing: 0.5px; text-decoration: none; color: var(--text); }
header.top .logo img { width: 32px; height: 32px; image-rendering: pixelated; filter: drop-shadow(0 0 10px color-mix(in oklab, var(--teal) 45%, transparent)); }
header.top nav { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; justify-content: flex-end; min-width: 0; font-size: 0.93rem; }
header.top nav a { text-decoration: none; padding: 7px 12px; border-radius: 8px; color: var(--text-2); }
header.top nav a:hover { background: var(--surface-2); color: var(--text); }
header.top nav a[aria-current] { color: var(--text); background: var(--surface-2); }
header.top nav a.cta { background: var(--accent); color: var(--accent-ink); font-weight: 600; margin-left: 6px; }
header.top nav a.cta:hover { filter: brightness(1.08); }

/* ---- layout ---- */
main { max-width: var(--max); margin: 0 auto; padding: 16px 20px 72px; }
main > :is(h2, h3, p, ul, ol, table, .notice, .faq, details) { max-width: var(--prose); }
main.wide > :is(h2, h3, p, ul, ol) { max-width: var(--prose); }
section.full { max-width: none; }
h1 { font: 700 clamp(2.1rem, 1.2rem + 3.6vw, 3.6rem)/1.08 var(--display); letter-spacing: -0.02em; margin: 28px 0 14px; max-width: 18ch; text-wrap: balance; }
h2 { font: 700 clamp(1.5rem, 1.1rem + 1.4vw, 2rem)/1.2 var(--display); letter-spacing: -0.01em; margin: 56px 0 12px; text-wrap: balance; }
h3 { font: 600 1.2rem/1.3 var(--display); margin: 26px 0 8px; }
h4 { font: 600 1rem/1.3 var(--display); margin: 20px 0 6px; }
p, li { max-width: 68ch; }
.lead { font-size: clamp(1.1rem, 1rem + 0.5vw, 1.3rem); color: var(--text-2); margin: 0 0 26px; max-width: 60ch; text-wrap: pretty; }
.muted { color: var(--muted); } .small { font-size: 0.88rem; } .faint { color: var(--faint); }
hr { border: 0; border-top: 1px solid var(--line); margin: 40px 0; }
code, kbd { font: 0.9em var(--mono); background: var(--surface-2); border: 1px solid var(--line); padding: 1px 6px; border-radius: 6px; }
.eyebrow { font: 600 0.78rem/1 var(--pixel); letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent); display: flex; align-items: center; gap: 8px; margin: 64px 0 12px; }
.eyebrow + h2, .eyebrow + h1 { margin-top: 0; }
.hero .eyebrow { margin-top: 0; }
main > .eyebrow:first-child, main > h1:first-child { margin-top: 24px; }
.eyebrow::before { content: ""; width: 8px; height: 8px; background: var(--accent); box-shadow: 0 0 12px var(--accent); }

table { border-collapse: collapse; width: 100%; margin: 12px 0 22px; font-size: 0.95rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-weight: 600; color: var(--muted); background: var(--surface-2); font-size: 0.85rem; letter-spacing: 0.02em; text-transform: uppercase; }
tr:last-child td { border-bottom: 0; }

/* ---- buttons ---- */
.btn { display: inline-flex; align-items: center; gap: 8px; background: var(--accent); color: var(--accent-ink); border: 0; border-radius: var(--radius); padding: 13px 20px; font: 600 1rem var(--font); text-decoration: none; cursor: pointer; min-block-size: 44px;
  box-shadow: 0 0 0 1px color-mix(in oklab, var(--accent) 40%, transparent), 0 8px 28px -10px color-mix(in oklab, var(--accent) 70%, transparent); transition: transform 0.15s, filter 0.15s; }
.btn:hover { filter: brightness(1.08); color: var(--accent-ink); transform: translateY(-1px); }
.btn.secondary { background: var(--surface-2); color: var(--text); box-shadow: inset 0 0 0 1px var(--line-strong); }
.btn.secondary:hover { background: var(--surface-3); color: var(--text); }
.btn.ghost { background: transparent; color: var(--text-2); box-shadow: none; }
.btn[disabled], .btn[aria-disabled="true"] { opacity: 0.5; cursor: not-allowed; transform: none; }
.btn.small { padding: 8px 14px; font-size: 0.9rem; min-block-size: 36px; }
.actions { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; margin: 22px 0 8px; }
.trust { display: flex; gap: 10px 18px; flex-wrap: wrap; margin: 14px 0 0; padding: 0; list-style: none; color: var(--muted); font-size: 0.9rem; }
.trust li::before { content: "■ "; color: var(--accent); font-size: 0.7em; vertical-align: 2px; }

/* ---- hero ---- */
.hero { position: relative; display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr); gap: 40px; align-items: center; padding: 36px 0 20px; }
/* loose pixels drifting around the hero: plain squares, no blur, so they read as pixels */
.hero::before, .hero::after { content: ""; position: absolute; width: 10px; height: 10px; pointer-events: none; z-index: -1; border-radius: 1px; }
.hero::before { right: -2%; top: -8%; background: var(--teal); opacity: 0.55;
  box-shadow: 30px 20px 0 0 color-mix(in oklab, var(--teal) 70%, transparent), 60px 10px 0 0 color-mix(in oklab, var(--teal) 35%, transparent), -20px 60px 0 0 color-mix(in oklab, var(--violet) 70%, transparent), 50px 70px 0 0 color-mix(in oklab, var(--violet) 40%, transparent), 90px 50px 0 0 color-mix(in oklab, var(--mist-100) 20%, transparent), 10px 110px 0 0 color-mix(in oklab, var(--teal) 25%, transparent); }
.hero::after { left: 42%; bottom: -6%; background: var(--violet); opacity: 0.45;
  box-shadow: -40px -20px 0 0 color-mix(in oklab, var(--violet) 60%, transparent), 30px -30px 0 0 color-mix(in oklab, var(--teal) 50%, transparent), 70px 10px 0 0 color-mix(in oklab, var(--teal) 25%, transparent), -80px 10px 0 0 color-mix(in oklab, var(--mist-100) 15%, transparent); }
@media (prefers-reduced-motion: no-preference) {
  .hero::before { animation: drift 14s ease-in-out infinite alternate; }
  .hero::after { animation: drift 18s ease-in-out infinite alternate-reverse; }
  @keyframes drift { from { transform: translate(0, 0); } to { transform: translate(-14px, 18px); } }
}
@media (max-width: 860px) { .hero::before, .hero::after { display: none; } }
.hero > * { min-width: 0; }
.hero h1 { margin-top: 10px; }
.hero .lead { margin-bottom: 6px; }
.panel { position: relative; min-width: 0; background: linear-gradient(180deg, color-mix(in oklab, var(--surface-2) 94%, transparent), color-mix(in oklab, var(--surface) 96%, transparent)); border: 1px solid color-mix(in oklab, var(--teal) 28%, var(--line-strong)); border-radius: var(--radius-lg); padding: 18px; box-shadow: 0 30px 80px -30px rgba(0,0,0,.8), 0 0 70px -20px color-mix(in oklab, var(--violet) 45%, transparent), inset 0 1px 0 color-mix(in oklab, var(--mist-100) 7%, transparent); }
.panel::before { content: ""; position: absolute; inset: -1px; border-radius: inherit; padding: 1px; background: linear-gradient(135deg, color-mix(in oklab, var(--teal) 55%, transparent), transparent 40%, transparent 60%, color-mix(in oklab, var(--violet) 55%, transparent)); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); mask-composite: exclude; pointer-events: none; }
.panel .panel-head { display: flex; justify-content: space-between; align-items: center; gap: 10px; font: 500 0.74rem var(--mono); color: var(--muted); margin-bottom: 12px; white-space: nowrap; overflow: hidden; }
.panel .panel-head b { color: var(--text-2); font-weight: 600; }
.icon-row { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; }
.icon-row figure { margin: 0; text-align: center; font: 500 0.72rem var(--mono); color: var(--muted); }
.icon-row img { width: 100%; aspect-ratio: 1; height: auto; background: var(--checker) 0 0 / 16px 16px; border: 1px solid var(--line); border-radius: 8px; transition: transform 0.2s; }
.icon-row figure:hover img { transform: translateY(-3px) scale(1.03); }
.icon-row figcaption { margin-top: 6px; }
.swatchbar { display: flex; gap: 3px; margin-top: 14px; }
.swatchbar i { flex: 1; height: 10px; border-radius: 2px; }
.panel-foot { display: flex; justify-content: space-between; gap: 10px; font: 500 0.72rem var(--mono); color: var(--faint); margin-top: 10px; white-space: nowrap; overflow: hidden; }
@media (max-width: 860px) { .hero { grid-template-columns: minmax(0, 1fr); gap: 26px; } }

/* ---- sections ---- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 20px 0 10px; }
.step { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 20px 20px 18px; }
.step .num { font: 600 1.6rem/1 var(--pixel); color: var(--accent); margin-bottom: 10px; }
.step h3 { margin: 0 0 6px; font-size: 1.08rem; }
.step p { margin: 0; color: var(--text-2); font-size: 0.95rem; }
@media (max-width: 760px) { .steps { grid-template-columns: 1fr; } }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; margin: 20px 0; }
.card { position: relative; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 20px; background: var(--surface); transition: border-color 0.2s, transform 0.2s; }
.card:hover { border-color: var(--line-strong); transform: translateY(-2px); }
.card h3 { margin: 0 0 6px; font-size: 1.1rem; }
.card h3 a { text-decoration: none; }
.card h3 a::after { content: " →"; color: var(--accent); }
.card p { margin: 0; color: var(--text-2); font-size: 0.95rem; }
.card .row { display: flex; gap: 6px; margin: 0 0 12px; }
.card .row img { width: 44px; height: 44px; background: var(--checker) 0 0 / 8px 8px; border-radius: 6px; border: 1px solid var(--line); }
.card.featured { border-color: color-mix(in oklab, var(--accent) 60%, transparent); box-shadow: 0 0 0 1px color-mix(in oklab, var(--accent) 30%, transparent), 0 20px 60px -30px color-mix(in oklab, var(--accent) 60%, transparent); }
.card .tag { position: absolute; top: -11px; right: 16px; background: var(--accent); color: var(--accent-ink); font: 600 0.72rem/1 var(--pixel); letter-spacing: 0.06em; padding: 6px 10px; border-radius: 999px; text-transform: uppercase; }
.card .price { font: 700 2.1rem/1.1 var(--display); margin: 8px 0 2px; letter-spacing: -0.02em; }
.card .price small { font: 400 0.85rem var(--font); color: var(--muted); margin-left: 6px; }
.card ul { padding-left: 18px; margin: 10px 0 16px; color: var(--text-2); font-size: 0.95rem; }

.examples { display: flex; gap: 14px; flex-wrap: wrap; margin: 16px 0 24px; align-items: flex-end; }
.examples figure { margin: 0; text-align: center; font: 500 0.75rem var(--mono); color: var(--muted); }
.examples img { width: 96px; height: 96px; background: var(--checker) 0 0 / 16px 16px; border: 1px solid var(--line); border-radius: 8px; }
.compare { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin: 18px 0 8px; }
.compare figure { margin: 0; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px; text-align: center; }
.compare .row { display: flex; gap: 6px; justify-content: center; }
.compare img { width: 56px; height: 56px; background: var(--checker) 0 0 / 8px 8px; border-radius: 6px; }
.compare figcaption { margin-top: 8px; font: 500 0.78rem var(--mono); color: var(--muted); }
.compare .swatches { justify-content: center; margin-top: 8px; }

.notice { border-left: 3px solid var(--warn); background: var(--surface); padding: 12px 16px; border-radius: 0 var(--radius) var(--radius) 0; margin: 16px 0; font-size: 0.95rem; }
.notice.ok { border-left-color: var(--ok); }

.faq { margin-top: 40px; }
.faq details { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); padding: 12px 16px; margin: 8px 0; }
.faq summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--accent); font: 600 1.2rem/1 var(--pixel); }
.faq details[open] summary::after { content: "–"; }
.faq details div { padding: 8px 0 2px; color: var(--text-2); }

footer { border-top: 1px solid var(--line); margin-top: 40px; padding: 36px 20px 44px; font-size: 0.9rem; background: color-mix(in oklab, var(--ink-900) 60%, transparent); }
footer .cols { max-width: var(--max); margin: 0 auto; display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 24px; }
footer nav { display: flex; flex-direction: column; gap: 8px; }
footer nav a { text-decoration: none; color: var(--muted); }
footer nav a:hover { color: var(--text); }
footer .brand { font: 600 1.2rem/1 var(--pixel); }
footer .disclosure { max-width: var(--max); margin: 28px auto 0; color: var(--faint); font-size: 0.82rem; }
@media (max-width: 760px) { footer .cols { grid-template-columns: 1fr 1fr; } }

/* ---- tool UI ---- */
.tool { border: 1px solid var(--line-strong); border-radius: var(--radius-lg); background: var(--surface); padding: 20px; margin: 18px 0 28px; box-shadow: 0 30px 80px -40px rgba(0,0,0,.8); }
.tool .row { display: flex; gap: 14px; flex-wrap: wrap; align-items: flex-end; margin-bottom: 12px; }
.tool label { display: flex; flex-direction: column; gap: 5px; font: 500 0.8rem var(--mono); color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }
.tool input[type=text], .tool textarea, .tool select, .tool input[type=number] {
  box-sizing: border-box; font: 1rem var(--font); color: var(--text); background: var(--ink-800); border: 1px solid var(--line-strong); border-radius: 8px; padding: 10px 12px; min-width: 170px; text-transform: none; letter-spacing: 0;
}
.tool :is(input, textarea, select):focus-visible { outline: 2px solid var(--accent); outline-offset: 0; border-color: transparent; }
.tool textarea { min-height: 104px; min-width: 260px; width: 100%; resize: vertical; font-family: var(--mono); font-size: 0.95rem; }
.tool .status { font-size: 0.93rem; color: var(--text-2); margin: 8px 0; min-height: 1.4em; }
.tool .status.err { color: var(--bad); }
.candidates { display: flex; gap: 12px; flex-wrap: wrap; margin: 10px 0; }
.candidate { border: 2px solid var(--line); border-radius: 10px; padding: 6px; background: var(--ink-800); cursor: pointer; text-align: center; font: 500 0.72rem var(--mono); color: var(--muted); transition: border-color 0.15s, box-shadow 0.15s; }
.candidate:hover { border-color: var(--line-strong); }
.candidate.picked { border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent) 25%, transparent), 0 10px 30px -14px var(--accent); }
.candidate.rejected { opacity: 0.4; cursor: default; }
.candidate canvas { display: block; width: 128px; height: 128px; background: var(--checker) 0 0 / 16px 16px; border-radius: 6px; }
.set-strip { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; padding: 12px; border: 1px dashed var(--line-strong); border-radius: 10px; min-height: 88px; background: var(--ink-800); }
.set-strip canvas { width: 64px; height: 64px; background: var(--checker) 0 0 / 8px 8px; border-radius: 6px; }
.swatches { display: flex; gap: 3px; flex-wrap: wrap; }
.swatches i { width: 18px; height: 18px; display: inline-block; border-radius: 4px; border: 1px solid rgba(0,0,0,.25); }
.drop { border: 2px dashed var(--line-strong); border-radius: var(--radius-lg); padding: 30px; text-align: center; color: var(--text-2); background: var(--ink-800); transition: border-color 0.15s, background 0.15s; }
.drop.over { border-color: var(--accent); background: color-mix(in oklab, var(--accent) 8%, var(--ink-800)); }
.preview-big canvas { width: 100%; max-width: 384px; height: auto; background: var(--checker) 0 0 / 16px 16px; border: 1px solid var(--line); border-radius: 8px; }
.chip { display: inline-flex; align-items: center; padding: 6px 12px; border-radius: 999px; background: var(--ink-800); border: 1px solid var(--line-strong); font: 500 0.8rem var(--mono); color: var(--text-2); min-block-size: 36px; }
.chip.ok { border-color: color-mix(in oklab, var(--ok) 60%, transparent); color: var(--ok); }
.chip.warn { border-color: color-mix(in oklab, var(--warn) 60%, transparent); color: var(--warn); }
.group h3 { font-family: var(--mono); font-weight: 500; font-size: 1rem; color: var(--text-2); }

/* ---- motion (opt-in, reduced-motion safe) ---- */
@media (prefers-reduced-motion: no-preference) {
  @supports (animation-timeline: view()) {
    .reveal { animation: rise both; animation-timeline: view(); animation-range: entry 0% entry 35%; }
    @keyframes rise { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
  }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; } }
@media (max-width: 640px) {
  header.top .bar { gap: 8px; padding: 10px 14px; }
  header.top .logo { font-size: 1.2rem; }
  header.top nav { flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; font-size: 0.85rem; -webkit-overflow-scrolling: touch; }
  header.top nav::-webkit-scrollbar { display: none; }
  header.top nav a { padding: 7px 9px; white-space: nowrap; }
  header.top nav a.cta { margin-left: 2px; }
  .tool textarea { min-width: 0; }
  .icon-row { grid-template-columns: repeat(5, 1fr); gap: 6px; }
}
@media (forced-colors: active) { .btn, .chip, .candidate { border: 1px solid ButtonText; } }