/* ATG: one stylesheet, three colour themes (paper, ink, mono) chosen by data-theme on <html>. Nothing else changes between them. */
:root {
  --font: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --maxw: 1120px;
  --radius: 18px;
  --ease: cubic-bezier(.2, .7, .2, 1);
}
:root[data-theme="paper"] {
  --bg: #ffffff; --fg: #0e0e11; --muted: #6a6a76; --line: #ececf2; --card: #fbfbfd; --chip: #ffffff;
  --a1: #7b68ee; --a2: #ff6ac1; --a3: #49ccf9; --a4: #5ee6c1; --aurora-opacity: .34; --aurora-blend: multiply;
  --btn-bg: #0e0e11; --btn-fg: #ffffff; --accent: #7b68ee; --shadow: 0 1px 0 rgba(14,14,17,.04), 0 12px 32px -18px rgba(60,40,140,.25);
}
:root[data-theme="ink"] {
  --bg: #000000; --fg: #f6f6f8; --muted: #9a9aa8; --line: #1d1d24; --card: #0a0a0d; --chip: #ffffff;
  --a1: #7b68ee; --a2: #ff4fb0; --a3: #2fb8ff; --a4: #3ddcb0; --aurora-opacity: .55; --aurora-blend: screen;
  --btn-bg: #ffffff; --btn-fg: #000000; --accent: #a99bff; --shadow: 0 0 0 1px rgba(255,255,255,.02), 0 18px 40px -22px rgba(123,104,238,.45);
}
:root[data-theme="mono"] {
  --bg: #ffffff; --fg: #000000; --muted: #6b6b6b; --line: #e8e8e8; --card: #fafafa; --chip: #ffffff;
  --a1: #000000; --a2: #8a8a8a; --a3: #cfcfcf; --a4: #444444; --aurora-opacity: .10; --aurora-blend: multiply;
  --btn-bg: #000000; --btn-fg: #ffffff; --accent: #000000; --shadow: 0 1px 0 rgba(0,0,0,.04), 0 10px 28px -20px rgba(0,0,0,.35);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--fg); font-family: var(--font); font-size: 17px; line-height: 1.6; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; transition: background .4s var(--ease), color .4s var(--ease); }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.wrap { width: min(var(--maxw), calc(100% - 48px)); margin: 0 auto; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

/* header */
.nav { position: sticky; top: 0; z-index: 20; backdrop-filter: saturate(160%) blur(14px); -webkit-backdrop-filter: saturate(160%) blur(14px); background: color-mix(in srgb, var(--bg) 78%, transparent); border-bottom: 1px solid color-mix(in srgb, var(--line) 70%, transparent); }
.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: -.02em; font-size: 19px; }
.brand svg { width: 26px; height: 26px; }
.links { display: flex; gap: 26px; font-size: 15px; color: var(--muted); }
.links a { position: relative; padding: 6px 0; transition: color .2s; }
.links a:hover, .links a[aria-current="page"] { color: var(--fg); }
.links a::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1.5px; background: currentColor; transform: scaleX(0); transform-origin: left; transition: transform .3s var(--ease); }
.links a:hover::after, .links a[aria-current="page"]::after { transform: scaleX(1); }

/* hero + aurora */
.hero { position: relative; overflow: hidden; isolation: isolate; padding: 120px 0 110px; }
.page-hero { padding: 84px 0 64px; }
.aurora { position: absolute; inset: -20% -10% -10% -10%; z-index: -1; pointer-events: none; opacity: var(--aurora-opacity); mix-blend-mode: var(--aurora-blend);
  -webkit-mask-image: linear-gradient(to bottom, #000 55%, transparent 100%); mask-image: linear-gradient(to bottom, #000 55%, transparent 100%); }
.blob { position: absolute; border-radius: 50%; filter: blur(70px); will-change: transform; }
.blob.b1 { width: 52vmax; height: 52vmax; left: -6%; top: -18%; background: radial-gradient(circle at 30% 30%, var(--a1), transparent 62%); animation: drift1 26s ease-in-out infinite alternate; }
.blob.b2 { width: 46vmax; height: 46vmax; right: -8%; top: -10%; background: radial-gradient(circle at 60% 40%, var(--a2), transparent 62%); animation: drift2 31s ease-in-out infinite alternate; }
.blob.b3 { width: 44vmax; height: 44vmax; left: 28%; top: 18%; background: radial-gradient(circle at 50% 50%, var(--a3), transparent 62%); animation: drift3 37s ease-in-out infinite alternate; }
.blob.b4 { width: 34vmax; height: 34vmax; right: 18%; top: 36%; background: radial-gradient(circle at 50% 50%, var(--a4), transparent 64%); animation: drift4 29s ease-in-out infinite alternate; }
@keyframes drift1 { to { transform: translate3d(14vmax, 8vmax, 0) rotate(40deg) scale(1.12); } }
@keyframes drift2 { to { transform: translate3d(-12vmax, 10vmax, 0) rotate(-35deg) scale(.92); } }
@keyframes drift3 { to { transform: translate3d(-10vmax, -4vmax, 0) rotate(60deg) scale(1.15); } }
@keyframes drift4 { to { transform: translate3d(8vmax, -8vmax, 0) rotate(-50deg) scale(1.1); } }
:root[data-theme="mono"] .hero::after { content: ""; position: absolute; inset: 0; z-index: -1; background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px); background-size: 64px 64px; -webkit-mask-image: radial-gradient(ellipse at 50% 20%, #000 0%, transparent 70%); mask-image: radial-gradient(ellipse at 50% 20%, #000 0%, transparent 70%); opacity: .7; }

.eyebrow { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; letter-spacing: .04em; color: var(--muted); border: 1px solid var(--line); background: color-mix(in srgb, var(--bg) 70%, transparent); padding: 6px 12px; border-radius: 999px; margin-bottom: 26px; }
.eyebrow i { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 22%, transparent); animation: pulse 2.6s ease-in-out infinite; }
@keyframes pulse { 50% { box-shadow: 0 0 0 8px color-mix(in srgb, var(--accent) 0%, transparent); } }
h1 { font-size: clamp(40px, 6.6vw, 82px); line-height: 1.02; letter-spacing: -.045em; font-weight: 650; margin: 0 0 22px; max-width: 15ch; }
.page-hero h1 { font-size: clamp(36px, 5vw, 60px); max-width: 18ch; }
.lead { font-size: clamp(18px, 2vw, 21px); color: var(--muted); max-width: 56ch; margin: 0 0 34px; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 13px 22px; border-radius: 999px; font-weight: 550; font-size: 15.5px; transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .2s; }
.btn.primary { background: var(--btn-bg); color: var(--btn-fg); box-shadow: var(--shadow); }
.btn.primary:hover { transform: translateY(-2px); }
.btn.ghost { border: 1px solid var(--line); background: color-mix(in srgb, var(--bg) 60%, transparent); }
.btn.ghost:hover { border-color: var(--fg); transform: translateY(-2px); }
.arrow { display: inline-block; transition: transform .25s var(--ease); }
a:hover .arrow, .btn:hover .arrow { transform: translateX(4px); }

/* sections */
section { padding: 84px 0; }
.kicker { font-size: 13px; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); margin: 0 0 12px; }
h2 { font-size: clamp(28px, 3.6vw, 42px); letter-spacing: -.035em; line-height: 1.1; margin: 0 0 14px; font-weight: 650; }
.sub { color: var(--muted); max-width: 58ch; margin: 0 0 44px; }
.grid { display: grid; gap: 18px; grid-template-columns: repeat(6, 1fr); }
.card { grid-column: span 2; position: relative; display: flex; flex-direction: column; gap: 14px; padding: 26px; border: 1px solid var(--line); background: var(--card); border-radius: var(--radius); transition: transform .35s var(--ease), border-color .3s, box-shadow .35s var(--ease); overflow: hidden; }
.card:nth-child(4), .card:nth-child(5) { grid-column: span 3; }
.card::before { content: ""; position: absolute; inset: 0; background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 0%), color-mix(in srgb, var(--accent) 14%, transparent), transparent 60%); opacity: 0; transition: opacity .35s; pointer-events: none; }
.card:hover { transform: translateY(-4px); border-color: color-mix(in srgb, var(--accent) 45%, var(--line)); box-shadow: var(--shadow); }
.card:hover::before { opacity: 1; }
.logo { height: 64px; width: 100%; display: flex; align-items: center; justify-content: flex-start; background: var(--chip); border-radius: 12px; padding: 10px 16px; border: 1px solid color-mix(in srgb, var(--line) 80%, transparent); }
.logo .wm { margin-left: 12px; font-size: 24px; font-weight: 650; letter-spacing: -.03em; color: #0e0e11; }
.logo img { height: 100%; width: auto; max-width: 100%; object-fit: contain; }
.card h3 { margin: 4px 0 0; font-size: 20px; letter-spacing: -.02em; font-weight: 620; }
.card p { margin: 0; color: var(--muted); font-size: 15.5px; flex: 1; }
.visit { font-size: 14.5px; font-weight: 550; display: inline-flex; gap: 6px; align-items: center; }

.beliefs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
.belief { border-top: 1px solid var(--line); padding-top: 22px; }
.belief b { display: block; font-size: 18px; letter-spacing: -.015em; margin-bottom: 8px; }
.belief p { margin: 0; color: var(--muted); font-size: 15.5px; }
.band { border: 1px solid var(--line); border-radius: 26px; padding: 54px; position: relative; overflow: hidden; isolation: isolate; background: var(--card); }
.band .aurora { inset: -40% -10% -40% 30%; opacity: calc(var(--aurora-opacity) * .9); -webkit-mask-image: none; mask-image: none; }

/* roles */
.roles { display: grid; gap: 12px; }
.role { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 24px 26px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); transition: transform .3s var(--ease), border-color .3s, box-shadow .3s var(--ease); }
a.role:hover { transform: translateY(-3px); border-color: color-mix(in srgb, var(--accent) 45%, var(--line)); box-shadow: var(--shadow); }
.role h3 { margin: 0 0 4px; font-size: 19px; letter-spacing: -.02em; }
.role p { margin: 0; color: var(--muted); font-size: 15px; }
.tag { font-size: 12.5px; padding: 4px 10px; border-radius: 999px; border: 1px solid var(--line); color: var(--muted); white-space: nowrap; }
.tag.open { color: var(--fg); border-color: color-mix(in srgb, var(--accent) 50%, var(--line)); background: color-mix(in srgb, var(--accent) 10%, transparent); }

/* verify */
.panel { max-width: 620px; border: 1px solid var(--line); border-radius: 22px; background: var(--card); padding: 30px; box-shadow: var(--shadow); }
.tabs { display: inline-flex; padding: 4px; border: 1px solid var(--line); border-radius: 999px; margin-bottom: 24px; background: var(--bg); }
.tabs button { border: 0; background: transparent; font: inherit; font-size: 14.5px; padding: 8px 16px; border-radius: 999px; cursor: pointer; color: var(--muted); }
.tabs button[aria-selected="true"] { background: var(--btn-bg); color: var(--btn-fg); }
label { display: block; font-size: 13.5px; color: var(--muted); margin: 14px 0 6px; }
input { width: 100%; font: inherit; color: var(--fg); background: var(--bg); border: 1px solid var(--line); border-radius: 12px; padding: 13px 14px; transition: border-color .2s, box-shadow .2s; }
input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 18%, transparent); }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.panel .btn { margin-top: 22px; border: 0; cursor: pointer; font-family: inherit; }
.result { margin-top: 24px; border-radius: 16px; padding: 20px; border: 1px solid var(--line); }
.result.ok { border-color: color-mix(in srgb, #1fa971 55%, var(--line)); background: color-mix(in srgb, #1fa971 8%, transparent); }
.result.bad { border-color: color-mix(in srgb, #d0453d 45%, var(--line)); background: color-mix(in srgb, #d0453d 7%, transparent); }
.result.warn { border-color: color-mix(in srgb, #d99a1c 55%, var(--line)); background: color-mix(in srgb, #d99a1c 9%, transparent); }
.result h3 { margin: 0 0 12px; font-size: 18px; }
.result dl { display: grid; grid-template-columns: 130px 1fr; gap: 8px 14px; margin: 0; font-size: 15.5px; }
.result dt { color: var(--muted); }
.result dd { margin: 0; font-weight: 520; }
.note { color: var(--muted); font-size: 14px; margin-top: 18px; }

footer { border-top: 1px solid var(--line); padding: 44px 0 70px; color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; justify-content: space-between; gap: 28px; flex-wrap: wrap; }
footer small { display: block; max-width: 62ch; line-height: 1.6; }
footer nav { display: flex; gap: 22px; }
footer a:hover { color: var(--fg); }

/* theme picker (a preview aid: remove once a theme is chosen) */
.themes { position: fixed; right: 18px; bottom: 18px; z-index: 30; display: flex; gap: 4px; padding: 5px; background: color-mix(in srgb, var(--bg) 85%, transparent); border: 1px solid var(--line); border-radius: 999px; backdrop-filter: blur(12px); box-shadow: 0 10px 30px -12px rgba(0,0,0,.25); }
.themes button { font: inherit; font-size: 13px; border: 0; background: transparent; color: var(--muted); padding: 7px 13px; border-radius: 999px; cursor: pointer; }
.themes button[aria-pressed="true"] { background: var(--btn-bg); color: var(--btn-fg); }

/* reveal */
.rv { opacity: 0; transform: translateY(18px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.rv.in { opacity: 1; transform: none; }
.rv:nth-child(2) { transition-delay: .06s; } .rv:nth-child(3) { transition-delay: .12s; } .rv:nth-child(4) { transition-delay: .18s; } .rv:nth-child(5) { transition-delay: .24s; }

@media (max-width: 880px) {
  .grid { grid-template-columns: 1fr 1fr; } .card, .card:nth-child(4), .card:nth-child(5) { grid-column: span 1; }
  .beliefs { grid-template-columns: 1fr; gap: 26px; } .band { padding: 32px 24px; }
  .hero { padding: 84px 0 80px; } section { padding: 64px 0; }
}
@media (max-width: 560px) {
  .grid { grid-template-columns: 1fr; } .links { gap: 16px; font-size: 14px; } .brand span { display: none; }
  .row2 { grid-template-columns: 1fr; } .result dl { grid-template-columns: 1fr; gap: 2px; } .result dt { margin-top: 10px; }
  .role { flex-direction: column; align-items: flex-start; gap: 12px; } .panel { padding: 22px; } .themes { right: 10px; bottom: 10px; }
}
@media (prefers-reduced-motion: reduce) {
  .blob, .eyebrow i { animation: none !important; } .rv { opacity: 1; transform: none; transition: none; } html { scroll-behavior: auto; }
  .btn, .card, .role { transition: none; }
}