/* Sigil AI v4 — deep blue, serif display over Geist, an atmosphere that is present in both themes. Dark by default. */

@font-face {
  font-family: "Newsreader";
  src: url("../fonts/newsreader-latin-wght-normal.woff2") format("woff2");
  font-weight: 200 800;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Geist";
  src: url("../fonts/geist-latin-wght-normal.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: dark;
  --bg: #15181d;
  --bg-deep: #0f1114;
  --card: rgba(255, 255, 255, 0.035);
  --card-strong: rgba(255, 255, 255, 0.05);
  --line: rgba(226, 230, 235, 0.11);
  --line-strong: rgba(226, 230, 235, 0.22);
  --text: #eceff2;
  --muted: #a0a8b1;
  --faint: #737b84;
  --accent: #8fb3cf;             /* steel */
  --accent-deep: #2f5f8f;        /* deep blue */
  --glow-a: rgba(63, 104, 146, 0.26);
  --glow-b: rgba(150, 175, 196, 0.12);
  --grid: rgba(226, 230, 235, 0.055);
  --mark: rgba(226, 230, 235, 0.065);
  --dot: rgba(226, 230, 235, 0.42);
  --sheen: rgba(255, 255, 255, 0.35);
  --sheen-primary: rgba(18, 28, 40, 0.22);
  --sheen-soft: rgba(255, 255, 255, 0.1);
  --arc: #cfe6fb;
  --grain: 0.07;
  --input-bg: var(--bg);
  --input-line: var(--line-strong);
  --input-shadow: none;
  --btn-bg: #eceff2;
  --btn-text: #15181d;
  --btn-hover: #ffffff;
  --todo: #e2b56a;

  --serif: "Newsreader", "Iowan Old Style", Georgia, "Times New Roman", serif;
  --sans: "Geist", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --wrap: 1180px;
  --gutter: clamp(16px, 4vw, 40px);
  --section: clamp(80px, 10vw, 136px);
  --radius: 8px;
  --radius-lg: 16px;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #e9eef5;
  --bg-deep: #dde4ed;
  --card: rgba(255, 255, 255, 0.55);
  --card-strong: rgba(255, 255, 255, 0.8);
  --line: rgba(18, 28, 40, 0.12);
  --line-strong: rgba(18, 28, 40, 0.24);
  --text: #121c28;
  --muted: #4f5e6d;
  --faint: #6b7985;
  --accent: #35628c;
  --accent-deep: #2f5f8f;
  --glow-a: rgba(47, 95, 143, 0.26);
  --glow-b: rgba(143, 179, 207, 0.4);
  --grid: rgba(18, 28, 40, 0.16);
  --mark: rgba(18, 28, 40, 0.11);
  --dot: rgba(18, 28, 40, 0.56);
  --sheen: rgba(18, 28, 40, 0.12);
  --sheen-primary: rgba(255, 255, 255, 0.5);
  --sheen-soft: rgba(18, 28, 40, 0.08);
  --arc: #2f5f8f;
  --grain: 0.06;
  --input-bg: #ffffff;
  --input-line: rgba(18, 28, 40, 0.62);
  --input-shadow: 0 1px 2px rgba(18, 28, 40, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.9);
  --btn-bg: #121c28;
  --btn-text: #e9eef5;
  --btn-hover: #000000;
  --todo: #7a4d00;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 88px; overflow-x: clip; }
body { overflow-x: clip; }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }

body {
  margin: 0;
  position: relative;
  background: var(--bg-deep) linear-gradient(180deg, var(--bg) 0, var(--bg-deep) 1600px) no-repeat;
  color: var(--text);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Film grain over the whole page, behind content. */
body::before {
  content: ""; position: fixed; inset: 0; z-index: -2; pointer-events: none; opacity: var(--grain);
  background-image: 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='.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 .5 0 0 0 0 .5 0 0 0 0 .5 0 0 0 1 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 0.22em; }
a:hover { text-decoration-color: var(--accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }

.visually-hidden { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip-link { position: absolute; left: var(--gutter); top: -100px; z-index: 100; background: var(--btn-bg); color: var(--btn-text); padding: 10px 14px; border-radius: var(--radius); font-weight: 600; text-decoration: none; }
.skip-link:focus { top: 12px; }
.wrap { width: 100%; max-width: calc(var(--wrap) + 2 * var(--gutter)); margin: 0 auto; padding: 0 var(--gutter); }

/* Atmosphere: glows and the square grid behind the top of every page. Static. Present in both themes. */
.atmos { position: fixed; inset: 0; z-index: -1; pointer-events: none; overflow: hidden; }
.atmos::before { content: ""; position: absolute; inset: -10%; background:
  radial-gradient(44% 40% at 78% 28%, var(--glow-a), transparent 70%),
  radial-gradient(36% 34% at 12% 8%, var(--glow-b), transparent 72%); }
.atmos::after { content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 72px 72px; background-position: center top;
  -webkit-mask-image: radial-gradient(90% 85% at 55% 40%, #000 0%, transparent 88%); mask-image: radial-gradient(90% 85% at 55% 40%, #000 0%, transparent 88%); }

/* Fixed helmet watermark: always present on inner pages; on the home page it fades in once the hero (with its dot helmet) has scrolled away. */
.bg-mark { position: fixed; z-index: -1; right: max(-3vw, -48px); top: 50%; height: min(92vh, 900px); width: auto; transform: translateY(-46%); color: var(--mark); pointer-events: none; opacity: 1; transition: opacity .7s var(--ease);
  -webkit-mask-image: linear-gradient(#000 55%, transparent 98%); mask-image: linear-gradient(#000 55%, transparent 98%); }
.is-home .bg-mark { opacity: 0; transition: opacity 1.6s cubic-bezier(.4, 0, .2, 1); }
.is-home .bg-mark.is-on { opacity: 1; }
@media (max-width: 960px) { .bg-mark { height: auto; width: min(78vw, 420px); right: 4vw; top: 56%; } }

/* Section glows so the page never goes flat. */
.glow-l::before, .glow-r::before { content: ""; position: absolute; z-index: -1; pointer-events: none; top: 0; bottom: 0; width: 70%; }
.glow-l::before { left: 0; background: radial-gradient(50% 55% at 20% 50%, var(--glow-b), transparent 70%); }
.glow-r::before { right: 0; background: radial-gradient(50% 55% at 80% 50%, var(--glow-a), transparent 70%); }

/* Type */
h1, h2, h3 { margin: 0; font-family: var(--serif); font-weight: 430; letter-spacing: -0.02em; line-height: 1.05; text-wrap: balance; }
h1 { font-size: clamp(2.9rem, 1.3rem + 6vw, 6rem); letter-spacing: -0.028em; line-height: 0.98; }
h2 { font-size: clamp(2.1rem, 1.3rem + 3vw, 3.6rem); }
h3 { font-size: clamp(1.4rem, 1.2rem + 0.6vw, 1.75rem); letter-spacing: -0.012em; line-height: 1.15; }
p { margin: 0; text-wrap: pretty; }
.lede { font-size: clamp(1.1rem, 1.02rem + 0.4vw, 1.3rem); line-height: 1.5; color: var(--muted); max-width: 30em; }
.label { font-family: var(--sans); font-size: 0.74rem; font-weight: 600; letter-spacing: 0.18em; text-transform: uppercase; color: var(--muted); }
.muted { color: var(--muted); }
.small { font-size: 0.9375rem; }

/* Logo */
.helmet, .wordmark { fill: currentColor; }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; color: var(--text); }
.brand .helmet { height: 30px; width: auto; }
.brand .wordmark { height: 12px; width: auto; }

/* Buttons: a subtle chrome sheen sweeps left to right on hover; a short press on click. */
.btn, .icon-btn, .arrow-link, .site-nav a, .footer-nav a, .p-send { position: relative; overflow: hidden; isolation: isolate; }
.btn::after, .icon-btn::after, .site-nav a::after, .footer-nav a::after {
  content: ""; position: absolute; inset: -2px; z-index: 1; pointer-events: none; opacity: 0;
  background: linear-gradient(105deg, transparent 38%, var(--sheen) 50%, transparent 62%);
  transform: translateX(-120%);
}
.arrow-link::after { content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none; opacity: 0; background: linear-gradient(105deg, transparent 38%, var(--sheen-soft) 50%, transparent 62%); transform: translateX(-120%); }
@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  .btn:hover::after, .icon-btn:hover::after, .arrow-link:hover::after, .site-nav a:hover::after, .footer-nav a:hover::after { opacity: 1; animation: sheen .75s var(--ease) forwards; }
}
@keyframes sheen { from { transform: translateX(-120%); } to { transform: translateX(120%); } }
.btn-primary::after { background: linear-gradient(105deg, transparent 38%, var(--sheen-primary) 50%, transparent 62%); }
.btn, .icon-btn { transition: background-color .2s var(--ease), border-color .2s var(--ease), transform .12s var(--ease), box-shadow .2s var(--ease); }
.btn:active, .icon-btn:active, .p-send:active { transform: scale(.97); }
.btn.is-pressed, .icon-btn.is-pressed { animation: press .45s var(--ease); }
@keyframes press { 0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 55%, transparent); } 100% { box-shadow: 0 0 0 10px transparent; } }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 48px; padding: 0 22px; border-radius: var(--radius); font: 600 0.98rem/1 var(--sans); text-decoration: none; cursor: pointer; border: 1px solid transparent; transition: background-color .2s var(--ease), border-color .2s var(--ease); }
.btn-primary { background: var(--btn-bg); color: var(--btn-text); }
.btn-primary:hover { background: var(--btn-hover); text-decoration: none; }
.btn-primary[disabled] { opacity: .6; cursor: progress; }
.btn-ghost { color: var(--text); border-color: var(--line-strong); background: transparent; }
.btn-ghost:hover { border-color: var(--text); text-decoration: none; }
.btn-sm { min-height: 40px; padding: 0 16px; font-size: 0.92rem; }
.arrow-link { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; text-decoration: none; padding: 12px 0; }
.arrow-link span { transition: transform .25s var(--ease); }
.arrow-link:hover { text-decoration: underline; text-decoration-color: var(--accent); }
.arrow-link:hover span { transform: translateX(4px); }

/* Header */
.site-header { position: sticky; top: 0; z-index: 50; background: color-mix(in srgb, var(--bg) 72%, transparent); backdrop-filter: saturate(140%) blur(12px); -webkit-backdrop-filter: saturate(140%) blur(12px); border-bottom: 1px solid var(--line); }
.header-inner { display: flex; align-items: center; gap: 24px; height: 68px; }
.header-inner .brand { margin-right: auto; }
.site-nav ul { display: flex; gap: 4px; list-style: none; margin: 0; padding: 0; }
.site-nav a { display: block; padding: 10px 12px; font-size: 0.95rem; font-weight: 500; color: var(--muted); text-decoration: none; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--text); }
.site-nav a[aria-current="page"] { text-decoration: underline; text-decoration-color: var(--accent); }
.header-actions { display: flex; align-items: center; gap: 8px; }
.icon-btn { display: inline-grid; place-items: center; width: 44px; height: 44px; padding: 0; background: transparent; color: var(--text); border: 1px solid var(--line); border-radius: var(--radius); cursor: pointer; transition: border-color .2s var(--ease); }
.icon-btn:hover { border-color: var(--line-strong); }
.icon-btn svg { width: 18px; height: 18px; }
.theme-toggle .icon-sun { display: none; }
:root[data-theme="light"] .theme-toggle .icon-sun { display: block; }
:root[data-theme="light"] .theme-toggle .icon-moon { display: none; }
.menu-toggle { display: none; }
@media (max-width: 860px) {
  .header-inner { gap: 10px; }
  .menu-toggle { display: inline-grid; }
  .header-cta { display: none; }
  .site-nav { position: absolute; left: 0; right: 0; top: 100%; background: var(--bg); border-bottom: 1px solid var(--line); padding: 8px var(--gutter) 20px; display: none; }
  .site-nav.is-open { display: block; }
  .site-nav ul { flex-direction: column; gap: 0; }
  .site-nav a { padding: 14px 0; font-size: 1.05rem; border-bottom: 1px solid var(--line); }
  .site-nav .nav-cta { margin-top: 16px; }
  .site-nav .nav-cta a { display: inline-flex; border: 0; padding: 0 22px; color: var(--btn-text); }
  .no-js .site-nav { position: static; display: block; padding: 0 0 12px; border: 0; }
  .no-js .menu-toggle { display: none; }
}
@media (min-width: 861px) { .site-nav .nav-cta { display: none; } }

/* Sections */
section { position: relative; padding: var(--section) 0; }
.rule { border-top: 1px solid var(--line); }

/* Hero: short copy on the left; the logo as an interactive field of dots fills the right, anchored to the viewport edge. */
.hero { padding: clamp(72px, 10vw, 128px) 0 clamp(72px, 10vw, 128px); min-height: min(78vh, 760px); display: grid; align-items: center; overflow: hidden; touch-action: pan-y; }
.hero-dots { position: absolute; inset: 0; z-index: -1; display: block; }
.hero-copy { position: relative; display: grid; gap: clamp(22px, 3vw, 34px); max-width: 720px; }
.hero-copy h1 .soft { color: var(--muted); }
.hero-sub { font-size: clamp(1.05rem, 0.98rem + 0.4vw, 1.25rem); color: var(--muted); display: flex; flex-wrap: wrap; gap: 6px 14px; }
.hero-sub span + span::before { content: ""; display: inline-block; width: 4px; height: 4px; border-radius: 50%; background: var(--accent); margin: 0 14px 3px 0; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
@media (max-width: 960px) {
  .hero { min-height: 0; }
}
@media (prefers-reduced-motion: no-preference) {
  .js .hero-copy > * { opacity: 0; transform: translateY(10px); animation: rise .9s var(--ease) forwards; }
  .js .hero-copy > :nth-child(2) { animation-delay: .08s; }
  .js .hero-copy > :nth-child(3) { animation-delay: .16s; }
  .js .hero-dots { opacity: 0; animation: fade 1.4s var(--ease) .2s forwards; }
}
@keyframes rise { to { opacity: 1; transform: none; } }
@keyframes fade { to { opacity: 1; } }

/* Steps: a timeline on the background. */
.section-head { display: grid; gap: 16px; justify-items: center; text-align: center; margin-bottom: clamp(40px, 6vw, 72px); }
.section-head h2 { max-width: 16em; }
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0 clamp(16px, 3vw, 40px); border-top: 1px solid var(--line-strong); }
.steps li { position: relative; padding: 26px 0 0; display: grid; gap: 8px; align-content: start; }
.steps li::after { content: ""; position: absolute; top: -1px; left: 0; height: 1px; width: 100%; background: var(--accent); transform: scaleX(0); transform-origin: left; }
.steps li::before { content: ""; position: absolute; top: -4px; left: 0; width: 7px; height: 7px; border-radius: 50%; background: var(--bg); border: 1px solid var(--line-strong); }
.steps li:first-child::before { background: var(--accent); border-color: var(--accent); }
.steps h3 { font-size: clamp(1.5rem, 1.2rem + 1vw, 2.1rem); transition: transform .35s var(--ease), color .35s var(--ease); }
.steps li { cursor: default; }
.steps li::before { transition: transform .35s var(--ease), background-color .35s var(--ease), border-color .35s var(--ease), box-shadow .35s var(--ease); }
@media (hover: hover) {
  .steps li:hover h3 { transform: translateX(6px); color: var(--accent); }
  .steps li:hover::before { background: var(--accent); border-color: var(--accent); transform: scale(1.6); box-shadow: 0 0 0 6px color-mix(in srgb, var(--accent) 22%, transparent); }
  .steps li:hover p { color: var(--text); }
}
.steps p { transition: color .35s var(--ease); }
.steps p { color: var(--muted); }
@media (prefers-reduced-motion: no-preference) {
  .js .steps li { opacity: 0; transform: translateY(12px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
  .js .steps li::after { transition: transform .9s var(--ease); }
  .js .steps li::before { transform: scale(.4); opacity: 0; transition: transform .5s var(--ease), opacity .5s var(--ease); }
  .js .steps li.is-in { opacity: 1; transform: none; }
  .js .steps li.is-in::after { transform: scaleX(1); }
  .js .steps li.is-in::before { transform: none; opacity: 1; }
  .js .steps li:nth-child(2).is-in, .js .steps li:nth-child(2).is-in::after, .js .steps li:nth-child(2).is-in::before { transition-delay: .18s; }
  .js .steps li:nth-child(3).is-in, .js .steps li:nth-child(3).is-in::after, .js .steps li:nth-child(3).is-in::before { transition-delay: .36s; }
  .js .steps li:nth-child(4).is-in, .js .steps li:nth-child(4).is-in::after, .js .steps li:nth-child(4).is-in::before { transition-delay: .54s; }
}
@media (max-width: 760px) {
  .steps { grid-template-columns: 1fr; border-top: 0; border-left: 1px solid var(--line-strong); gap: 0; }
  .steps li::after { top: 0; left: -1px; width: 1px; height: 100%; transform: scaleY(0); transform-origin: top; }
  .js .steps li.is-in::after { transform: scaleY(1); }
  .steps li { padding: 0 0 32px 24px; }
  .steps li::before { top: 9px; left: -4px; }
  .steps li:last-child { padding-bottom: 0; }
}

/* Audience */
.audience { display: grid; gap: clamp(28px, 4vw, 48px); justify-items: center; text-align: center; }
.strip { display: flex; flex-wrap: wrap; justify-content: center; list-style: none; margin: 0; padding: 0; }
.strip li { font-family: var(--serif); font-size: clamp(1.6rem, 1.2rem + 1.6vw, 2.6rem); line-height: 1.1; padding: 10px clamp(16px, 2.6vw, 36px); position: relative; }
.strip li + li::before { content: ""; position: absolute; left: 0; top: 18%; bottom: 18%; width: 1px; background: var(--line-strong); }
.audience h2 { max-width: 18em; }
@media (max-width: 560px) { .strip { flex-direction: column; } .strip li + li::before { display: none; } }

/* Services as cards */
.svc-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 20px; margin-bottom: 18px; }
.svc-head p { font-size: 0.975rem; }
.cards { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 14px; }
.card { position: relative; display: grid; grid-template-rows: auto auto 1fr auto; gap: 6px; padding: 22px 22px 16px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--card);
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); transition: border-color .3s var(--ease), transform .3s var(--ease), background-color .3s var(--ease); }
.card p { color: var(--muted); font-size: 0.975rem; }
.card .arrow-link { justify-self: start; padding: 10px 0 0; font-size: 0.95rem; }
.card-tag { font-size: 0.7rem !important; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; color: var(--accent) !important; }
.card-lead { border-color: color-mix(in srgb, var(--accent) 45%, var(--line)); }
@media (hover: hover) { .card:hover { border-color: var(--line-strong); transform: translateY(-2px); background: var(--card-strong); } }
.terms-list { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 10px; }
.terms-list li { padding: 10px 14px; border: 1px solid var(--line); border-radius: var(--radius); font-size: 0.95rem; color: var(--muted); background: var(--card); }
.card-link:hover .link-text { transform: none; }
@media (max-width: 560px) {
  .cards { grid-template-columns: 1fr; gap: 10px; }
  .card { grid-template-rows: auto; gap: 2px; padding: 16px 56px 16px 18px; }
  .card .card-link { position: static; padding: 0; }
  .card .card-link::before { content: ""; position: absolute; inset: 0; border-radius: inherit; }
  .card .card-link .link-text { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
  .card .card-link .arr { position: absolute; right: 20px; top: 50%; transform: translateY(-50%); font-size: 1.25rem; color: var(--accent); }
  .card .card-link:focus-visible { outline: none; }
  .card:focus-within { outline: 2px solid var(--accent); outline-offset: 2px; }
  .card .card-tag { margin-bottom: 2px; }
  .svc-head { margin-bottom: 12px; }
}

/* Form */
.form-layout { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr); gap: clamp(32px, 6vw, 96px); align-items: start; padding-bottom: var(--section); }
.form-card { border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--card); padding: clamp(24px, 4vw, 48px); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px 20px; }
.field { display: grid; gap: 8px; align-content: start; }
.field-full { grid-column: 1 / -1; }
.field label { font-size: 0.95rem; font-weight: 600; }
.field .opt { font-weight: 400; color: var(--muted); }
.field .hint { font-size: 0.875rem; color: var(--muted); }
.field input, .field select, .field textarea { width: 100%; min-height: 48px; padding: 12px 14px; font: inherit; font-size: 1rem; color: var(--text); background: var(--input-bg); border: 1px solid var(--input-line); border-radius: var(--radius); box-shadow: var(--input-shadow); transition: border-color .15s var(--ease); }
.field textarea { min-height: 112px; resize: vertical; }
.field select { appearance: none; padding-right: 40px; background-image: linear-gradient(45deg, transparent 50%, currentColor 50%), linear-gradient(135deg, currentColor 50%, transparent 50%); background-position: calc(100% - 20px) 21px, calc(100% - 15px) 21px; background-size: 5px 5px; background-repeat: no-repeat; }
.field input:hover, .field select:hover, .field textarea:hover { border-color: var(--muted); }
.field input:focus-visible, .field select:focus-visible, .field textarea:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent); }
.field [aria-invalid="true"] { border-color: var(--accent); }
.field-error { font-size: 0.875rem; color: var(--accent); font-weight: 500; }
.field-error:empty { display: none; }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.form-foot { display: grid; gap: 16px; margin-top: 28px; }
.form-status { border-radius: var(--radius); padding: 14px 16px; border: 1px solid var(--line-strong); font-size: 0.95rem; }
.form-status:empty { display: none; }
.form-status[data-kind="error"] { border-color: var(--accent); }
.form-done { display: grid; gap: 16px; }
.form-done[hidden] { display: none; }
.aside { display: grid; gap: 28px; }
.aside-block { display: grid; gap: 10px; padding-top: 20px; border-top: 1px solid var(--line); }
.aside-block h2 { font-size: 1.4rem; line-height: 1.25; }
.aside-block p, .aside-block li { color: var(--muted); font-size: 0.975rem; }
.aside-block ul { margin: 0; padding-left: 1.1em; display: grid; gap: 6px; }
@media (max-width: 860px) { .form-layout { grid-template-columns: 1fr; } }
@media (max-width: 560px) { .form-grid { grid-template-columns: 1fr; } }

/* Placeholders that must be resolved before launch */
.todo { display: inline; padding: 1px 6px; border: 1px dashed var(--todo); border-radius: 4px; color: var(--todo); font-family: var(--sans); font-size: 0.86em; font-weight: 600; letter-spacing: 0; text-transform: none; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding: 56px 0 40px; font-size: 0.9375rem; }
.footer-nav ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 4px 20px; }
.footer-nav a { color: var(--muted); text-decoration: none; display: inline-block; padding: 8px 0; }
.footer-nav a:hover { color: var(--text); text-decoration: underline; text-decoration-color: var(--accent); }

/* Reveal on scroll */
@media (prefers-reduced-motion: no-preference) {
  .js .reveal { opacity: 0; transform: translateY(14px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
  .js .reveal.is-in { opacity: 1; transform: none; }
}

@media print {
  .site-header, .atmos, .theme-toggle, .menu-toggle, body::before { display: none; }
  body { background: #fff; color: #000; }
}

/* ---------- v38 page styles ---------- */
:root[data-theme="light"] .hero { --dot: rgba(53, 98, 140, 0.92); --dot-size: 1.75; --dot-dim: 1; --dot-lit: #04101f; }
:root {
  --castle-fill: #1b2028; --castle-line: rgba(226, 230, 235, 0.72); --castle-soft: rgba(226, 230, 235, 0.24); --gate-dark: #0b0e12;
  --leaf-a: #1f2c3b; --leaf-b: #18232f; --leaf-c: #111922; --iron: #0a0f15; --iron-hi: #3a4858; --stud: #6c7f93;
  --door-line: rgba(143, 179, 207, 0.22); --door-ink: #eef3f8; --door-ink-2: rgba(238, 243, 248, 0.84); --hall: #0b0e12; --seam: #cfe6fb;
  --hh: 68px; --fh: 172px;
}
:root[data-theme="light"] {
  --castle-fill: #f6f9fc; --castle-line: rgba(18, 28, 40, 0.72); --castle-soft: rgba(18, 28, 40, 0.28); --gate-dark: #233140;
  --leaf-a: #2d445d; --leaf-b: #253a51; --leaf-c: #1d2f43; --iron: #0c141d; --iron-hi: #536679; --stud: #9fb1c3;
  --door-line: rgba(201, 216, 231, 0.3); --hall: #17212c; --seam: #9fd0ff;
}

/* ---------- Hero: on narrow screens the dot helmet sits above the copy, never behind it ---------- */
.hero-dots { transform-origin: 0 0; }
@media (max-width: 959px) {
  .js .hero { padding-top: calc(min(210px, 56vw) * 1.306 + 56px); padding-bottom: 56px; }
  .hero-sub { font-size: 1rem; gap: 4px 10px; }
  .hero-sub span + span::before { margin-right: 10px; }
  .hero-sub span:nth-child(3) { flex-basis: 100%; }
  .hero-sub span:nth-child(3)::before { display: none; }
}

/* ---------- Anchor links land exactly where the section assist lands ---------- */
html { scroll-padding-top: var(--hh); }
/* Auto-scroll and anchor links stop with a section's content this far under the header, not at its top edge. */
:root { --land: clamp(32px, 4vw, 56px); }
main > section[id]:not(.finale) { scroll-margin-top: calc(var(--land) - var(--section)); }

/* ---------- Steps: tighter on phones ---------- */
@media (max-width: 760px) {
  .steps li { padding: 0 0 22px 22px; gap: 4px; }
  .steps h3 { font-size: 1.5rem; }
  .steps p { font-size: 1rem; }
}

/* ---------- Tap targets on phones (header brand, footer links) ---------- */
@media (max-width: 760px) { .brand { min-height: 44px; } }

/* ---------- Footer: centred, compact (about half the v29 height) ---------- */
.foot11 { padding: 12px 0 14px; font-size: 0.84rem; text-align: center; background: linear-gradient(180deg, color-mix(in srgb, var(--accent-deep, var(--accent)) 7%, transparent), transparent 70%); }
.foot11 .foot-in { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 0 28px; }
.foot-row { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 0 22px; }
.foot11 .foot-brand { margin: 0; gap: 9px; min-height: 40px; }
.foot11 .foot-brand .helmet { height: 21px; } .foot11 .foot-brand .wordmark { height: 8.5px; }
.foot11 .footer-nav ul { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 0; }
.foot11 .footer-nav li { display: inline-flex; align-items: center; }
.foot11 .footer-nav li + li::before { content: "\00b7" / ""; color: var(--muted); opacity: .6; }
.foot11 .footer-nav a { display: inline-flex; align-items: center; min-height: 40px; padding: 0 11px; font-size: inherit; letter-spacing: 0.01em; }
/* Form small print under the button: deliberately tiny, same muted colour (still AA contrast). */
#privacy { font-size: 0.5625rem; line-height: 1.5; letter-spacing: 0.01em; }
.mail-link { display: inline-flex; align-items: center; min-height: 44px; color: inherit; text-underline-offset: 3px; }
.mail-link:hover { color: var(--text); }
.foot-meta { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 0; margin: 0; color: var(--muted); font-size: 0.78rem; line-height: 1.5; }
.foot-meta > span + span::before { content: "\00b7" / ""; margin: 0 10px; opacity: .6; }
.foot11 .todo { font-size: 0.86em; padding: 0 5px; border-radius: 3px; }
@media (max-width: 760px) {
  :root { --fh: 100px; }
  .foot11 { padding: 4px 0 6px; }
  .foot11 .foot-in { display: grid; justify-items: center; gap: 0; }
  .foot-row { gap: 0 12px; }
  .foot11 .foot-brand, .foot11 .footer-nav a { min-height: 44px; }
  .foot11 .footer-nav a { padding: 0 8px; }
  .foot-meta { font-size: 0.72rem; }
  .foot-meta > span + span::before { margin: 0 7px; }
}

/* ---------- Footer: electric arrival as the gate seals ---------- */
.foot11 { position: relative; }
.foot-fx { position: absolute; left: 0; right: 0; top: -1px; height: 1px; pointer-events: none; display: none; }
.foot-fx .ln { position: absolute; inset: 0; transform: scaleX(0); transform-origin: 0 50%; background: linear-gradient(90deg, transparent, var(--accent) 8%, color-mix(in srgb, var(--accent) 55%, #fff) 50%, var(--accent) 92%, transparent); box-shadow: 0 0 6px 0 color-mix(in srgb, var(--accent) 70%, transparent), 0 0 18px 1px color-mix(in srgb, var(--accent) 28%, transparent); opacity: 0; }
.foot-fx .hd { position: absolute; top: -3px; left: 0; width: 70px; height: 7px; margin-left: -60px; border-radius: 50%; background: radial-gradient(closest-side, #fff, color-mix(in srgb, var(--accent) 80%, transparent) 45%, transparent); filter: blur(.4px); opacity: 0; }
.foot-fx .sp { position: absolute; top: -1px; width: 2px; height: 2px; border-radius: 50%; background: color-mix(in srgb, var(--accent) 45%, #fff); box-shadow: 0 0 5px 1px color-mix(in srgb, var(--accent) 75%, transparent); opacity: 0; }
:root[data-theme="light"] .foot-fx .hd { background: radial-gradient(closest-side, var(--accent), color-mix(in srgb, var(--accent) 55%, transparent) 50%, transparent); }
:root[data-theme="light"] .foot-fx .ln { background: linear-gradient(90deg, transparent, var(--accent) 8%, var(--accent-deep) 50%, var(--accent) 92%, transparent); }
:root[data-theme="light"] .foot-fx .sp { background: var(--accent); }
.foot-armed .foot11:not(.is-lit) .foot-brand,
.foot-armed .foot11:not(.is-lit) .footer-nav li,
.foot-armed .foot11:not(.is-lit) .foot-meta > span { opacity: 0; }
@media (prefers-reduced-motion: no-preference) {
  .foot11.is-lit.is-fx .foot-fx { display: block; }
  .foot11.is-lit.is-fx .foot-fx .ln { animation: foot-line 1.5s cubic-bezier(.3, .6, .2, 1) both; }
  .foot11.is-lit.is-fx .foot-fx .hd { animation: foot-head .42s cubic-bezier(.45, .1, .4, 1) both; }
  .foot11.is-lit.is-fx .foot-fx .sp { animation: foot-spark .55s ease-out both; animation-delay: var(--d, 0s); }
  .foot11.is-lit.is-fx .foot-brand,
  .foot11.is-lit.is-fx .footer-nav li,
  .foot11.is-lit.is-fx .foot-meta > span { animation: foot-flick .62s linear backwards; animation-delay: calc(.06s + var(--i, 0) * 40ms); }
}
@keyframes foot-line { 0% { transform: scaleX(0); opacity: 1; } 27% { transform: scaleX(1); opacity: 1; } 45% { opacity: .75; } 100% { transform: scaleX(1); opacity: 0; } }
@keyframes foot-head { 0% { left: 0; opacity: 0; } 12% { opacity: 1; } 88% { opacity: 1; } 100% { left: 100%; opacity: 0; } }
@keyframes foot-spark { 0% { opacity: 0; transform: translate(0, 0) scale(1); } 15% { opacity: 1; } 100% { opacity: 0; transform: translate(var(--dx, 4px), var(--dy, -9px)) scale(.4); } }
@keyframes foot-flick {
  0% { opacity: 0; filter: drop-shadow(0 0 0 transparent); }
  14% { opacity: .85; filter: drop-shadow(0 0 7px color-mix(in srgb, var(--accent) 80%, transparent)); }
  24% { opacity: .2; }
  38% { opacity: 1; filter: drop-shadow(0 0 6px color-mix(in srgb, var(--accent) 70%, transparent)); }
  48% { opacity: .6; }
  62% { opacity: 1; filter: drop-shadow(0 0 4px color-mix(in srgb, var(--accent) 45%, transparent)); }
  100% { opacity: 1; filter: drop-shadow(0 0 0 transparent); }
}

.spark-layer { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 60; pointer-events: none; }

/* ---------- Shared bits ---------- */
.btn[hidden], .app-actions [hidden] { display: none !important; }
.head-split { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 18px 40px; align-items: end; margin-bottom: clamp(28px, 4vw, 48px); }
.head-split .stack { display: grid; gap: 16px; }
.head-split h2 { max-width: 14em; }
@media (max-width: 760px) { .head-split { grid-template-columns: 1fr; } }
.seg { display: inline-flex; gap: 4px; padding: 4px; border: 1px solid var(--line-strong); border-radius: var(--radius); background: var(--card); }
.seg button { min-height: 44px; padding: 0 18px; border: 0; border-radius: var(--radius); background: transparent; color: var(--muted); font: 600 0.95rem/1 var(--sans); cursor: pointer; transition: background-color .25s var(--ease), color .25s var(--ease); }
.seg button:hover { color: var(--text); }
.seg button[aria-pressed="true"] { background: var(--btn-bg); color: var(--btn-text); }
.offline { display: inline-flex; align-items: center; gap: 7px; white-space: nowrap; font-size: 0.78rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--accent); padding: 5px 10px; border: 1px solid color-mix(in srgb, var(--accent) 40%, transparent); border-radius: var(--radius); }
.offline svg { height: 13px; width: auto; }

/* ---------- Feature B: the keep ---------- */
.keep-grid { display: grid; grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.5fr); gap: clamp(28px, 5vw, 72px); align-items: center; }
.keep-copy { display: grid; gap: 22px; align-content: center; justify-items: start; }
.keep-copy h2 { max-width: 11em; }
.keep-card { border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--card); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); padding: clamp(14px, 2.4vw, 28px); display: grid; gap: 14px; margin: 0; }
.keep-svg .keep-title { font-family: var(--sans); font-size: 18px; font-weight: 600; letter-spacing: 0.16em; fill: var(--muted); }
@media (max-width: 640px) { .keep-svg .keep-title { font-size: 25px; } }
.keep-svg .cloud-title { transition: opacity .5s var(--ease); }
.keep-svg .strike { stroke: var(--accent); stroke-width: 2.4; stroke-linecap: round; fill: none; stroke-dasharray: 1; stroke-dashoffset: 1; transition: stroke-dashoffset .45s var(--ease); }
.keep-card[data-mode="sigil"] .keep-svg .strike { stroke-dashoffset: 0; transition-delay: .3s; }
.keep-card[data-mode="sigil"] .keep-svg .cloud-title { opacity: .7; }
@media (prefers-reduced-motion: reduce) { .keep-svg .strike, .keep-svg .cloud-title { transition: none; } }
.keep-svg { width: 100%; height: auto; overflow: visible; }
.keep-svg .ln { fill: none; stroke: var(--castle-line); stroke-width: 1.9; stroke-linejoin: round; stroke-linecap: round; }
.keep-svg .soft { fill: none; stroke: var(--castle-soft); stroke-width: 1.2; stroke-linecap: round; }
.keep-svg .solid { fill: var(--castle-fill); stroke: var(--castle-line); stroke-width: 1.9; stroke-linejoin: round; }
.keep-svg .gate-in { fill: var(--gate-dark); }
.keep-svg .win { fill: var(--gate-dark); stroke: var(--castle-line); stroke-width: 1.2; }
.keep-svg .win-lit { fill: var(--accent); filter: drop-shadow(0 0 5px var(--accent)); }
.keep-svg .bars { fill: none; stroke: var(--castle-line); stroke-width: 2.2; stroke-linecap: round; }
.keep-svg .plank { fill: var(--castle-fill); stroke: var(--castle-line); stroke-width: 1.6; }
.keep-svg .chain { stroke: var(--castle-line); stroke-width: 1.2; stroke-dasharray: 2 3; }
.keep-svg .away { fill: color-mix(in srgb, var(--muted) 8%, transparent); stroke: var(--muted); stroke-width: 1.6; stroke-dasharray: 7 7; transition: stroke .5s var(--ease), opacity .5s var(--ease); }
.keep-svg .water { fill: none; stroke: var(--accent); stroke-width: 1.2; opacity: .55; stroke-linecap: round; }
.keep-svg .doc .pg { fill: var(--castle-fill); stroke: var(--text); stroke-width: 1.8; stroke-linejoin: round; }
.keep-svg .doc .fold { fill: var(--text); opacity: .5; }
.keep-svg .doc .tx { stroke: var(--accent); stroke-width: 2; stroke-linecap: round; }
/* behind the gatehouse wall a document shows as a faint dashed ghost, so it can be followed all the way to the gate */
.keep-svg .ghost .pg { fill: none; stroke: var(--muted); stroke-width: 1.7; stroke-dasharray: 3.2 2.6; stroke-linejoin: round; }
.keep-svg .ghost .fold { fill: var(--muted); opacity: .4; }
.keep-svg .ghost .tx { stroke: var(--muted); stroke-width: 1.7; stroke-linecap: round; }
.keep-svg .trail { fill: none; stroke: var(--accent); stroke-width: 1.7; stroke-linecap: round; stroke-dasharray: 0.1 6.5; opacity: .5; transition: opacity .5s var(--ease); }
.keep-card[data-mode="sigil"] .keep-svg .trail { opacity: 0; }
.keep-svg .planks { stroke-width: 1; }
.keep-svg .shimmer path { fill: none; stroke: var(--arc); stroke-width: 2; stroke-linecap: round; stroke-dasharray: 7 93; opacity: 0; filter: drop-shadow(0 0 3px var(--arc)); transition: opacity .6s var(--ease); }
.keep-card[data-mode="sigil"].is-sealed .shimmer path { opacity: .85; }
@media (prefers-reduced-motion: no-preference) {
  .keep-svg .shimmer path { animation: run-wall 3.2s linear infinite; }
  .keep-svg .shimmer path:nth-child(2) { animation-delay: -0.8s; animation-duration: 2.6s; }
  .keep-svg .shimmer path:nth-child(3) { animation-delay: -1.7s; }
  .keep-svg .shimmer path:nth-child(4) { animation-delay: -2.2s; animation-duration: 2.9s; }
  .keep-svg .shimmer path:nth-child(5) { animation-delay: -1.2s; animation-duration: 3.6s; }
}
@media (prefers-reduced-motion: reduce) { .keep-svg .shimmer path { stroke-dasharray: none; stroke-width: 1.2; } .keep-card[data-mode="sigil"].is-sealed .shimmer path { opacity: .35; } }
@keyframes run-wall { from { stroke-dashoffset: 100; } to { stroke-dashoffset: 0; } }
.keep-cap { display: flex; align-items: center; gap: 10px; min-height: 28px; font-size: 1rem; color: var(--text); padding-top: 12px; border-top: 1px solid var(--line); }
.keep-cap svg { flex: none; width: 18px; height: 18px; color: var(--accent); }
.keep-svg { cursor: pointer; -webkit-tap-highlight-color: transparent; touch-action: manipulation; }
.keep-svg .crest { opacity: 0; transition: opacity .7s var(--ease); }
.keep-svg .crest use { fill: var(--accent); transform-box: view-box; transform-origin: 0 0; }
.keep-svg .crest-glow { filter: blur(5px); opacity: .45; }
.keep-svg .crest-mark { filter: drop-shadow(0 0 2px color-mix(in srgb, var(--accent) 70%, transparent)); }
.keep-card[data-mode="sigil"].is-sealed .crest { opacity: 1; }
@media (prefers-reduced-motion: no-preference) { .keep-card[data-mode="sigil"].is-sealed .crest-glow { animation: crest-pulse 3s ease-in-out infinite; } }
@media (prefers-reduced-motion: reduce) { .keep-svg .crest-glow { opacity: .8; } }
@keyframes crest-pulse { 0%, 100% { opacity: .2; } 50% { opacity: .95; } }
@media (max-width: 900px) { .keep-grid { grid-template-columns: 1fr; } }
@media (max-width: 420px) { .seg { display: flex; } .seg button { flex: 1; padding: 0 10px; font-size: 0.9rem; } }

/* ---------- Feature A: the workbench (preset, self-playing demos) ---------- */
.bench-head { display: grid; gap: 16px; margin-bottom: clamp(26px, 4vw, 44px); }
.bench-head .lede { max-width: 34em; }
.bench-note { display: inline-flex; align-items: center; gap: 10px; font-size: 0.875rem; color: var(--muted); }
.bench-note::before { content: ""; width: 18px; height: 1px; background: var(--accent); }
.bench { display: grid; grid-template-columns: 236px minmax(0, 1fr); border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--card); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); box-shadow: 0 30px 80px -50px rgba(0, 0, 0, .55); overflow: hidden; }
.bench-tabs { display: flex; flex-direction: column; gap: 4px; padding: 14px; border-right: 1px solid var(--line); background: color-mix(in srgb, var(--bg-deep) 35%, transparent); }
.bench-tab { position: relative; display: grid; gap: 3px; text-align: left; padding: 14px 14px 14px 16px; border: 1px solid transparent; border-radius: var(--radius); background: transparent; color: var(--muted); font: inherit; cursor: pointer; transition: background-color .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease); }
.bench-tab .t-name { font-weight: 600; font-size: 0.98rem; color: var(--text); }
.bench-tab .t-desc { font-size: 0.85rem; line-height: 1.4; }
.bench-tab:hover { background: var(--card); border-color: var(--line); }
.bench-tab[aria-selected="true"] { background: var(--card-strong); border-color: var(--line-strong); color: var(--text); }
.bench-tab[aria-selected="true"]::before { content: ""; position: absolute; left: -1px; top: 12px; bottom: 12px; width: 2px; border-radius: 2px; background: var(--accent); }
.bench-tabs .bench-foot { margin-top: auto; padding: 14px 6px 4px; font-size: 0.82rem; color: var(--muted); border-top: 1px solid var(--line); }
.bench-panel { padding: clamp(18px, 3vw, 32px); min-height: 700px; display: grid; gap: 18px; align-content: start; }
.bench-panel[hidden] { display: none; }
.bench-panel:focus-visible { outline-offset: -3px; }
.app-head { display: flex; flex-wrap: wrap; align-items: start; justify-content: space-between; gap: 10px 20px; padding-bottom: 14px; border-bottom: 1px solid var(--line); }
.app-head h3 { font-size: clamp(1.45rem, 1.25rem + .6vw, 1.85rem); }
.app-meta { display: flex; align-items: center; gap: 10px; }
.app-head .app-meta .offline { margin-top: 0; }
.more-line, .cc-legend { display: none; }
.app-head p { color: var(--muted); font-size: 0.95rem; margin-top: 6px; }
.s-tag { color: var(--muted); font-size: 0.86em; font-weight: 400; white-space: nowrap; }
.pend { opacity: 0; transform: translateY(6px); transition: opacity .35s var(--ease), transform .35s var(--ease); }
.pend.on { opacity: 1; transform: none; }

/* sources and options (shown, not editable) */
.src { display: grid; gap: 10px; }
.src-line { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 14px; font-size: 0.88rem; color: var(--muted); }
.opt-row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.opt-k { font-size: 0.88rem; color: var(--muted); margin-right: 4px; }
.chip { display: inline-flex; align-items: center; gap: 8px; min-height: 34px; padding: 0 12px; border: 1px solid var(--line-strong); border-radius: var(--radius); font-size: 0.88rem; color: var(--muted); transition: border-color .3s var(--ease), background-color .3s var(--ease), color .3s var(--ease), box-shadow .3s var(--ease); }
.chip svg { width: 16px; height: 13px; flex: none; }
.opt-btn { background: transparent; font: inherit; font-size: 0.88rem; min-height: 40px; cursor: pointer; }
.opt-btn:hover { color: var(--text); border-color: color-mix(in srgb, var(--accent) 60%, var(--line-strong)); }
.opt-btn[aria-pressed="true"], .chip.on { color: var(--text); border-color: var(--accent); background: color-mix(in srgb, var(--accent) 15%, transparent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 14%, transparent); }
.docs { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 6px 8px; }
.docs li { display: grid; grid-template-columns: 16px minmax(0, 1fr); align-items: center; gap: 10px; padding: 7px 10px; border: 1px solid var(--line); border-radius: var(--radius); font-size: 0.86rem; background: var(--card); opacity: .55; transition: border-color .25s var(--ease), background-color .25s var(--ease), opacity .3s var(--ease); }
.src.on .docs li { opacity: 1; }
.docs svg { width: 15px; height: 17px; color: var(--muted); }
.docs .d-name { display: grid; min-width: 0; line-height: 1.3; }
.docs .d-name b { font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.docs .d-name small { font-size: 0.76rem; color: var(--muted); }
.docs li.reading, .tags li.reading { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 14%, transparent); }
.docs li.read, .tags li.read { border-color: color-mix(in srgb, var(--accent) 45%, var(--line)); }
.docs li.read svg, .tags li.read svg { color: var(--accent); }
.tags { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.tags li { display: inline-flex; align-items: center; gap: 8px; padding: 6px 10px; border: 1px solid var(--line); border-radius: var(--radius); font-size: 0.86rem; background: var(--card); transition: border-color .25s var(--ease), background-color .25s var(--ease), opacity .35s var(--ease), transform .35s var(--ease); }
.tags svg { width: 14px; height: 14px; color: var(--muted); flex: none; }
.tags li small { color: var(--muted); font-size: 0.78rem; white-space: nowrap; }

/* the prompt box */
.prompt { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 14px; padding: 10px 10px 10px 16px; border: 1px solid var(--line-strong); border-radius: var(--radius); background: var(--card-strong); transition: border-color .3s var(--ease), box-shadow .3s var(--ease); }
.prompt.typing { border-color: color-mix(in srgb, var(--accent) 60%, var(--line-strong)); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 12%, transparent); }
.prompt-text { display: grid; font-size: 0.98rem; line-height: 1.45; }
.prompt-text > * { grid-area: 1 / 1; }
.prompt-text .ghost { visibility: hidden; }
.prompt.typing .typed::after { content: ""; display: inline-block; width: 2px; height: 1.05em; margin-left: 2px; vertical-align: -0.16em; background: var(--accent); animation: caret 0.9s steps(1) infinite; }
@keyframes caret { 50% { opacity: 0; } }
.send { display: grid; place-items: center; width: 40px; height: 40px; border-radius: var(--radius); border: 1px solid var(--line-strong); color: var(--muted); transition: background-color .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease), transform .15s var(--ease), box-shadow .4s var(--ease); }
.send svg { width: 18px; height: 18px; }
.prompt.ready .send { background: var(--btn-bg); border-color: var(--btn-bg); color: var(--btn-text); box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 22%, transparent), 0 0 18px color-mix(in srgb, var(--accent) 40%, transparent); }
.prompt.press .send { transform: scale(.86); box-shadow: 0 0 0 9px transparent; }
.prompt.sent .send { background: color-mix(in srgb, var(--accent) 22%, transparent); border-color: var(--accent); color: var(--accent); box-shadow: none; }

/* results */
.results { display: grid; gap: 12px; align-content: start; }
.demo-sum { font-family: var(--serif); font-size: clamp(1.25rem, 1.1rem + .55vw, 1.6rem); line-height: 1.2; min-height: 1.2em; letter-spacing: -0.01em; }
.demo-sum:empty::before { content: "\00a0"; }
.demo-sum-sm { font-size: 1.05rem; font-family: var(--sans); color: var(--muted); letter-spacing: 0; }
.hits { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.hit { display: grid; gap: 8px; padding: 12px 14px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); }
.hit-row { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr) minmax(0, 1.25fr); gap: 4px 16px; align-items: baseline; }
.hit-name { font-weight: 600; }
.hit-d { font-size: 0.92rem; }
.hit-d .k { display: block; font-size: 0.76rem; color: var(--muted); }
.hit-sum { font-size: 0.92rem; color: var(--muted); grid-column: 2 / -1; }
.flag { display: inline-block; margin-left: 6px; font-size: 0.72rem; font-weight: 600; color: var(--accent); border: 1px solid color-mix(in srgb, var(--accent) 55%, transparent); border-radius: 4px; padding: 0 6px; vertical-align: 1px; }
.quote { margin: 0; padding-left: 12px; border-left: 2px solid color-mix(in srgb, var(--accent) 55%, transparent); display: grid; gap: 3px; }
.quote p { font-family: var(--serif); font-size: 1.02rem; line-height: 1.4; color: var(--text); }
.quote cite { font-style: normal; font-size: 0.78rem; color: var(--muted); }
.quote cite b { color: var(--accent); font-weight: 600; }
mark { background: color-mix(in srgb, var(--accent) 26%, transparent); color: inherit; border-radius: 3px; padding: 0 2px; }
.demo-foot { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px 18px; padding-top: 14px; border-top: 1px solid var(--line); margin-top: 2px; }
.demo-foot .foot-note { font-size: 0.88rem; color: var(--muted); }
.btn-replay { min-height: 44px; padding: 0 16px; font-size: 0.9rem; margin-left: auto; }

/* clause check */
.checklist { padding: 12px 14px; border: 1px dashed var(--line-strong); border-radius: var(--radius); gap: 8px; }
.cl-title { font-weight: 600; font-size: 0.92rem; }
.cl-items { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; min-height: 34px; }
.cl-items li { display: inline-flex; align-items: center; gap: 8px; min-height: 32px; padding: 0 10px; border: 1px solid var(--line-strong); border-radius: var(--radius); font-size: 0.86rem; }
.cl-items li::before { content: ""; width: 8px; height: 8px; border: 1px solid var(--accent); border-radius: 2px; background: color-mix(in srgb, var(--accent) 30%, transparent); }
.grid { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.grid th { text-align: left; font-size: 0.8rem; font-weight: 600; color: var(--muted); padding: 0 8px 8px 0; border-bottom: 1px solid var(--line-strong); vertical-align: bottom; line-height: 1.25; }
.grid td { padding: 8px 8px 8px 0; border-bottom: 1px solid var(--line); vertical-align: middle; }
.grid tbody th { text-align: left; font-size: 0.9rem; font-weight: 600; color: var(--text); padding: 8px 10px 8px 0; border-bottom: 1px solid var(--line); vertical-align: middle; }
.grid th .sm { display: none; }
.cell { display: inline-flex; align-items: center; gap: 6px; padding: 3px 7px; margin-left: -7px; border: 1px solid transparent; border-radius: 6px; white-space: nowrap; transition: border-color .3s var(--ease), background-color .3s var(--ease), box-shadow .3s var(--ease); }
.cell svg { width: 15px; height: 15px; flex: none; }
.cell.ok { color: var(--text); } .cell.ok svg { color: var(--accent); }
.cell.miss { color: var(--todo); font-weight: 600; }
.cell.rev { color: var(--text); } .cell.rev svg { color: var(--todo); }
.cell.wait { color: var(--faint, var(--muted)); opacity: .5; }
.cell.sel { border-color: var(--todo); background: color-mix(in srgb, var(--todo) 12%, transparent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--todo) 16%, transparent); }
.detail { display: grid; gap: 8px; padding: 12px 14px; border: 1px solid color-mix(in srgb, var(--todo) 55%, var(--line)); border-radius: var(--radius); background: var(--card); }
.detail .d-head { font-weight: 600; font-size: 0.95rem; }
.detail .d-head .cell { margin-left: 4px; font-size: 0.86rem; font-weight: 600; vertical-align: -3px; }
.detail .why { font-size: 0.92rem; color: var(--muted); }
.detail .quote { border-left-color: color-mix(in srgb, var(--todo) 70%, transparent); }
.disclaimer { font-size: 0.92rem; color: var(--text); padding-left: 12px; border-left: 2px solid var(--todo); }

/* renewal letters */
.rl-tone button { min-height: 38px; padding: 0 16px; font-size: 0.9rem; }
.tags li.out { opacity: .42; }
.seg-static span { display: inline-flex; align-items: center; min-height: 36px; padding: 0 16px; border-radius: var(--radius); font: 600 0.9rem/1 var(--sans); color: var(--muted); transition: background-color .35s var(--ease), color .35s var(--ease); }
.seg-static span.on { background: var(--btn-bg); color: var(--btn-text); }
.letter { display: grid; gap: 10px; padding: clamp(16px, 2.6vw, 24px); border: 1px solid var(--line-strong); border-radius: var(--radius); background: var(--card-strong); }
.letter h4 { margin: 0; font-family: var(--serif); font-weight: 430; font-size: clamp(1.2rem, 1.1rem + .4vw, 1.4rem); letter-spacing: -0.01em; }
.letter-clip { overflow: hidden; transition: height .45s var(--ease); }
.letter-body { white-space: pre-line; font-size: 0.97rem; line-height: 1.62; min-height: 1.6em; transition: opacity .25s var(--ease); }
.letter-body.dim { opacity: .15; }
.pulled { text-decoration: underline; text-decoration-color: var(--accent); text-decoration-thickness: 2px; text-underline-offset: 4px; }
.letter-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.letter-actions .btn { min-height: 44px; padding: 0 16px; font-size: 0.92rem; transition: opacity .35s var(--ease), border-color .2s var(--ease), background-color .2s var(--ease); }
.letter-actions .btn[disabled] { opacity: .35; cursor: default; }
.letter-actions .btn[aria-pressed="true"] { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 16%, transparent); }
@media (prefers-reduced-motion: reduce) { .bench *, .bench *::before, .bench *::after { transition: none !important; animation: none !important; } }

@media (max-width: 1100px) and (min-width: 761px) { .docs { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 760px) {
  .bench { grid-template-columns: 1fr; }
  .bench-tabs { flex-direction: row; overflow-x: auto; gap: 6px; padding: 10px; border-right: 0; border-bottom: 1px solid var(--line); scrollbar-width: none; scroll-snap-type: x proximity; }
  .bench-tabs::-webkit-scrollbar { display: none; }
  .bench-tab { flex: none; min-height: 44px; padding: 0 14px; align-content: center; white-space: nowrap; scroll-snap-align: start; border-color: var(--line); }
  .bench-tab .t-desc, .bench-tabs .bench-foot { display: none; }
  .bench-tab[aria-selected="true"]::before { left: 12px; right: 12px; top: auto; bottom: -1px; width: auto; height: 2px; }
  .bench-panel { min-height: 0; padding: 18px 16px 20px; gap: 14px; }
  .app-head { padding-bottom: 12px; }
  .app-head p.offline { order: -1; }
  .docs { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 5px; }
  .docs li { grid-template-columns: minmax(0, 1fr); padding: 6px 9px; font-size: 0.82rem; }
  .docs li svg, .docs .d-name small { display: none; }
  .docs .d-name b { white-space: normal; }
  .chip, .opt-k { font-size: 0.84rem; } .chip { padding: 0 9px; } .opt-row { gap: 6px; }
  .opt-btn { min-height: 44px; padding: 0 9px; font-size: 0.82rem; } #panel-cs .opt-row { gap: 5px; flex-wrap: nowrap; } #panel-cs .opt-k { font-size: 0.8rem; margin-right: 0; white-space: nowrap; }
  .tags { gap: 5px; } .tags li { padding: 5px 9px; font-size: 0.84rem; }
  .seg.rl-tone { display: inline-flex; } .rl-tone button { min-height: 44px; flex: none; }
  .prompt { padding: 10px 8px 10px 12px; gap: 10px; }
  .prompt-text { font-size: 0.94rem; }
  .hit { padding: 12px; }
  .hit-row { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .hit-name, .hit-sum { grid-column: 1 / -1; }
  .quote p { font-size: 0.98rem; }
  .grid thead tr, .grid tbody tr { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 0 4px; }
  .grid thead th:first-child { display: none; }
  .grid thead th { font-size: 0.74rem; padding: 0 0 6px; text-align: center; }
  .grid tbody tr { padding: 8px 0 6px; border-bottom: 1px solid var(--line); }
  .grid td { border: 0; padding: 0; text-align: center; }
  .grid tbody th { grid-column: 1 / -1; text-align: left; padding: 0 0 4px; border: 0; font-size: 0.9rem; }
  .grid thead th .lg { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
  .grid thead th .sm { display: inline; }
  .grid .cell { margin: 0; padding: 4px 6px; }
  .grid .cell .w { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
  .grid .cell svg { width: 17px; height: 17px; }
  .letter-actions { display: grid; grid-template-columns: 1fr 1fr; }
  .letter-actions #rl-copy { grid-column: 1 / -1; order: 3; }
  .demo-foot .foot-note { flex-basis: 100%; }
  .btn-replay { margin-left: 0; }
}

/* Phones: each demo fits on one screen while it plays */
@media (max-width: 640px) {
  .bench-panel { grid-template-columns: minmax(0, 1fr); padding: 12px 14px 14px; gap: 9px; }
  .app-head { display: grid; justify-content: normal; gap: 2px; padding-bottom: 8px; }
  .app-meta { order: -1; justify-content: space-between; }
  .app-head .app-meta .offline { font-size: 0.8rem; padding: 4px 9px; }
  .app-head h3 { font-size: 1.32rem; }
  .app-head .app-sub { display: none; }
  .btn-replay { padding: 0 14px; font-size: 0.86rem; margin-left: auto; }
  .src { gap: 6px; }
  .src-line { font-size: 0.8rem; gap: 2px 12px; }
  .src-line .chip { min-height: 30px; }
  .docs, .tags, .cl-items { display: flex; flex-wrap: nowrap; align-items: center; gap: 6px; min-height: 44px; overflow-x: auto; overscroll-behavior-x: contain; scrollbar-width: none; scroll-padding: 0 16px; -webkit-mask-image: linear-gradient(90deg, #000 calc(100% - 22px), transparent); mask-image: linear-gradient(90deg, #000 calc(100% - 22px), transparent); }
  .docs::-webkit-scrollbar, .tags::-webkit-scrollbar, .cl-items::-webkit-scrollbar { display: none; }
  .docs li { flex: none; grid-template-columns: 13px auto; gap: 7px; padding: 5px 10px; font-size: 0.8rem; }
  .docs li svg { display: block; width: 13px; height: 15px; }
  .docs .d-name b { white-space: nowrap; }
  .tags li { flex: none; white-space: nowrap; padding: 5px 9px; font-size: 0.8rem; }
  .prompt { padding: 7px 7px 7px 11px; gap: 8px; }
  .prompt-text { font-size: 0.86rem; line-height: 1.4; }
  .send { width: 36px; height: 36px; }
  .results { gap: 8px; }
  .demo-sum { font-size: 1.08rem; line-height: 1.25; }
  .demo-sum-sm { font-size: 0.86rem; }
  .hits { gap: 6px; }
  .hit { padding: 7px 10px; gap: 3px; }
  #xr-hits .quote cite { display: none; }
  .hit-row { gap: 2px 12px; }
  .hit-name { font-size: 0.9rem; line-height: 1.3; }
  .hit-d { font-size: 0.84rem; line-height: 1.3; } .hit-d .k { font-size: 0.7rem; }
  .hit-sum { font-size: 0.84rem; line-height: 1.3; }
  .flag { font-size: 0.66rem; margin-left: 4px; padding: 0 5px; }
  .quote { padding-left: 9px; gap: 1px; }
  .quote p { font-size: 0.9rem; line-height: 1.32; display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 2; line-clamp: 2; overflow: hidden; }
  .quote cite { font-size: 0.72rem; }
  .hits.capped > .hit:nth-child(n+3) { display: none; }
  .more-line { display: block; font-size: 0.8rem; color: var(--muted); padding-left: 2px; }
  .demo-foot { padding-top: 8px; margin-top: 0; } .demo-foot .foot-note { font-size: 0.8rem; }
  .checklist { display: flex; align-items: center; gap: 10px; padding: 0; border: 0; }
  .cl-title { flex: none; font-size: 0.8rem; line-height: 1.25; white-space: nowrap; }
  .cl-items { flex: 1; min-width: 0; }
  .cl-items li { flex: none; white-space: nowrap; min-height: 30px; font-size: 0.8rem; }
  .grid thead tr, .grid tbody tr { grid-template-columns: minmax(0, 1fr) repeat(5, 36px); gap: 0 3px; align-items: center; }
  .grid thead th { font-size: 0.64rem; padding: 0 0 4px; letter-spacing: -0.01em; white-space: nowrap; }
  .grid thead th:first-child { display: block; text-align: left; }
  .grid tbody tr { padding: 5px 0; }
  .grid tbody th { grid-column: auto; font-size: 0.8rem; line-height: 1.25; padding: 0; }
  .grid .cell { padding: 2px 5px; }
  .grid .cell svg { width: 16px; height: 16px; }
  .cc-legend { display: flex; flex-wrap: wrap; gap: 2px 14px; font-size: 0.76rem; color: var(--muted); }
  .cc-legend .cell { margin: 0; padding: 0; gap: 5px; }
  .cc-legend .cell svg { width: 13px; height: 13px; }
  .detail { padding: 8px 10px; gap: 4px; }
  .detail .d-head { font-size: 0.84rem; line-height: 1.35; }
  .detail .d-head .cell { font-size: 0.8rem; }
  .detail .why { font-size: 0.8rem; line-height: 1.35; }
  .disclaimer { font-size: 0.8rem; padding-left: 9px; }
  .letter { padding: 10px 12px; gap: 4px; }
  .letter h4 { font-size: 1rem; }
  .letter-clip { height: 236px !important; overflow-y: auto; overscroll-behavior: contain; }
  .letter-body { font-size: 0.86rem; line-height: 1.5; }
  .letter-actions { grid-template-columns: auto minmax(0, 1fr) minmax(0, 1fr); gap: 6px; }
  .letter-actions .btn { padding: 0 8px; font-size: 0.82rem; }
  .letter-actions #rl-copy { grid-column: auto; order: 0; }
}

/* ---------- Services ---------- */
.svc-cols { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(18px, 2.4vw, 28px); align-items: start; }
.svc-col { display: grid; gap: 14px; }
.svc-col .svc-head { display: grid; gap: 4px; margin: 0; padding-bottom: 10px; border-bottom: 1px solid var(--line); }
.svc-col .svc-head h3 { font-size: clamp(1.4rem, 1.2rem + .7vw, 1.85rem); }
.svc-col .cards { grid-template-columns: 1fr; gap: 10px; }
/* Tiles are information only: one Request a call button after the last tile. */
.svc-col .card { grid-template-rows: auto; padding-bottom: 20px; }
.svc-col .card:hover { transform: none; border-color: var(--line); background: var(--card); }
/* One button under the tiles: centred under the three columns on wide screens, straight after the last tile on phones */
.svc-cta-row { display: flex; justify-content: center; margin-top: clamp(28px, 3vw, 40px); }
@media (max-width: 960px) { .svc-cta-row { justify-content: flex-start; margin-top: 18px; } }
/* Light mode: the request-section notes sit over the background helmet, so they use the full text colour */
:root[data-theme="light"] .aside-block p, :root[data-theme="light"] .aside-block li { color: var(--text); }
:root[data-theme="light"] .aside-block li::marker { color: var(--muted); }
@media (max-width: 560px) { .svc-col .card { padding: 16px 18px; } }
.card h4 { margin: 0; font-family: var(--serif); font-weight: 430; letter-spacing: -0.012em; line-height: 1.15; font-size: clamp(1.2rem, 1.1rem + .4vw, 1.4rem); }
@media (max-width: 960px) { .svc-cols { grid-template-columns: 1fr; gap: 30px; } }
@media (max-width: 560px) { .card { grid-template-rows: auto; } }

/* ---------- About ---------- */
.owner-line { color: var(--muted); max-width: 34em; }

/* ---------- Request ---------- */
.req-head { display: grid; gap: 16px; margin-bottom: clamp(28px, 4vw, 48px); }
#request .form-layout { padding-bottom: 0; }

/* ---------- Feature C: the gate ---------- */
.finale { --gate-gap: 20px; padding: clamp(40px, 6vw, 72px) 0 0; border-top: 1px solid var(--line); overflow-x: clip; }
.finale-stage { position: relative; display: grid; place-items: end center; padding: 0 var(--gutter); }
.arch { --t: 16px; --ry: 16%; position: relative; width: calc(min(980px, 100%) - 2 * var(--t)); margin-top: var(--t); }
.arch::after { content: ""; position: absolute; left: calc(-1 * var(--t) - 36px); right: calc(-1 * var(--t) - 36px); bottom: 0; height: 1.5px; background: var(--castle-line); opacity: .8; }
.arch-stone { position: absolute; z-index: 0; max-width: none; left: calc(-1 * var(--t)); top: calc(-1 * var(--t)); width: calc(100% + 2 * var(--t)); height: calc(100% + var(--t)); overflow: visible; pointer-events: none; }
.arch-stone .stone { fill: var(--castle-fill); }
.arch-stone .joint { fill: none; stroke: var(--castle-soft); stroke-width: 1.1; stroke-linecap: round; }
.arch-stone .edge { fill: none; stroke: var(--castle-line); stroke-width: 1.6; stroke-linejoin: round; }
.doorway { --close: 1; --plate: 1; position: relative; z-index: 1; width: 100%; height: clamp(380px, calc(100svh - var(--hh) - var(--fh) - var(--t) - var(--gate-gap)), 820px); perspective: 1500px; border-radius: 50% 50% 0 0 / var(--ry) var(--ry) 0 0; overflow: hidden; background: radial-gradient(60% 50% at 50% 60%, color-mix(in srgb, var(--accent-deep) 50%, transparent), transparent 75%), var(--hall); isolation: isolate; box-shadow: 0 26px 70px -46px rgba(0, 0, 0, .5); }
.hall { position: absolute; inset: 0; z-index: 1; display: grid; place-content: center; justify-items: center; gap: 14px; text-align: center; padding: 0 22%; color: var(--door-ink); opacity: calc(1 - var(--close) * 1.4); }
.hall .label { color: var(--door-ink-2); }
.hall p.big { font-family: var(--serif); font-size: clamp(1.6rem, 1.1rem + 2vw, 2.8rem); line-height: 1.1; letter-spacing: -0.015em; }
.hall svg { height: clamp(70px, 9vw, 110px); width: auto; color: var(--seam); opacity: .8; filter: drop-shadow(0 0 18px color-mix(in srgb, var(--seam) 60%, transparent)); }
.leaf { position: absolute; z-index: 2; top: 0; bottom: 0; width: 50%; overflow: hidden; backface-visibility: hidden;
  background:
    repeating-linear-gradient(90deg, rgba(0, 0, 0, .34) 0 1px, rgba(255, 255, 255, .045) 1px 2px, transparent 2px 20%),
    radial-gradient(120% 55% at 50% 0%, rgba(143, 179, 207, .09), transparent 70%),
    linear-gradient(180deg, var(--leaf-a), var(--leaf-b) 55%, var(--leaf-c)); }
.leaf.l { left: 0; transform-origin: 0 50%; transform: rotateY(calc((1 - var(--close)) * 84deg)); box-shadow: inset -1px 0 0 var(--door-line), inset 1px 0 0 rgba(0, 0, 0, .4); }
.leaf.r { right: 0; transform-origin: 100% 50%; transform: rotateY(calc((1 - var(--close)) * -84deg)); box-shadow: inset 1px 0 0 var(--door-line), inset -1px 0 0 rgba(0, 0, 0, .4); }
.leaf::after { content: ""; position: absolute; inset: 0; pointer-events: none; background: linear-gradient(90deg, rgba(0, 0, 0, calc((1 - var(--close)) * .6)), transparent); }
.leaf.r::after { background: linear-gradient(-90deg, rgba(0, 0, 0, calc((1 - var(--close)) * .6)), transparent); }
/* long iron strap hinges with a flared end */
.strap { position: absolute; left: 0; width: 66%; height: 9px; border-radius: 0 2px 2px 0; background: linear-gradient(180deg, var(--iron-hi), var(--iron) 45%, var(--iron)); box-shadow: 0 2px 4px rgba(0, 0, 0, .45); }
.strap::before { content: ""; position: absolute; inset: 0; background: radial-gradient(circle, var(--stud) 0 1.6px, transparent 2.4px) 18px 50% / 70px 9px no-repeat, radial-gradient(circle, var(--stud) 0 1.6px, transparent 2.4px) 34% 50% / 9px 9px no-repeat; }
.strap::after { content: ""; position: absolute; right: -20px; top: 50%; width: 24px; height: 22px; transform: translateY(-50%); background: linear-gradient(180deg, var(--iron-hi), var(--iron) 45%); clip-path: polygon(0 34%, 42% 0, 100% 50%, 42% 100%, 0 66%); filter: drop-shadow(0 2px 2px rgba(0, 0, 0, .4)); }
.strap.s1 { top: 21%; } .strap.s2 { top: 87%; }
.leaf.r .strap { left: auto; right: 0; transform: scaleX(-1); }
/* ring pulls near the seam */
.ring { position: absolute; top: 40%; width: 34px; height: 46px; }
.leaf.l .ring { right: 9%; } .leaf.r .ring { left: 9%; }
.ring::before { content: ""; position: absolute; left: 50%; top: 0; width: 14px; height: 14px; margin-left: -7px; border-radius: 50%; background: radial-gradient(circle at 40% 35%, var(--iron-hi), var(--iron) 70%); box-shadow: 0 2px 3px rgba(0, 0, 0, .45); }
.ring::after { content: ""; position: absolute; left: 50%; top: 8px; width: 30px; height: 30px; margin-left: -15px; border-radius: 50%; border: 3.5px solid var(--iron); box-shadow: inset 0 1px 0 color-mix(in srgb, var(--iron-hi) 70%, transparent), 0 1px 0 color-mix(in srgb, var(--iron-hi) 50%, transparent), 0 3px 5px rgba(0, 0, 0, .4); }
.emblem { position: absolute; top: 5%; height: 19%; width: auto; aspect-ratio: 389 / 508; color: color-mix(in srgb, var(--accent) 38%, var(--leaf-b)); filter: drop-shadow(0 1px 0 rgba(255, 255, 255, .1)) drop-shadow(0 -1px 0 rgba(0, 0, 0, .45)); transition: color .6s var(--ease), filter .6s var(--ease); }
.leaf.l .emblem { right: 0; transform: translateX(50%); }
.leaf.r .emblem { left: 0; transform: translateX(-50%); }
.doorway.is-sealed .emblem { color: color-mix(in srgb, var(--seam) 62%, var(--leaf-b)); filter: drop-shadow(0 0 10px color-mix(in srgb, var(--seam) 35%, transparent)); }
.seam, .seam-arc { -webkit-mask-image: linear-gradient(#000 0 40%, transparent 47%, transparent 90%, #000 95%); mask-image: linear-gradient(#000 0 40%, transparent 47%, transparent 90%, #000 95%); }
.seam { position: absolute; z-index: 4; top: 0; bottom: 0; left: 50%; width: 2px; margin-left: -1px; pointer-events: none; opacity: 0; background: linear-gradient(180deg, transparent, var(--seam) 14%, #fff 40%, var(--seam) 86%, transparent); box-shadow: 0 0 8px 1px color-mix(in srgb, var(--seam) 55%, transparent), 0 0 30px 3px color-mix(in srgb, var(--seam) 18%, transparent); }
.seam-arc { position: absolute; z-index: 4; top: 0; left: 50%; width: 40px; height: 100%; margin-left: -20px; pointer-events: none; opacity: 0; overflow: visible; }
.seam-arc path { fill: none; stroke: var(--seam); stroke-width: 1.2; filter: drop-shadow(0 0 3px var(--seam)); }
.doorway.is-sealed .seam { opacity: .32; }
@media (prefers-reduced-motion: no-preference) {
  .doorway.is-sealed .seam { animation: seal-flash 1.3s var(--ease) both; }
  .doorway.is-sealed .seam-arc { animation: arc-flick .7s steps(6) both; }
}
@keyframes seal-flash { 0% { opacity: 0; } 12% { opacity: .85; box-shadow: 0 0 14px 3px var(--seam), 0 0 70px 14px color-mix(in srgb, var(--seam) 30%, transparent); } 30% { opacity: .5; } 42% { opacity: .75; } 100% { opacity: .32; } }
@keyframes arc-flick { 0% { opacity: 0; } 15% { opacity: .8; } 35% { opacity: .15; } 55% { opacity: .6; } 100% { opacity: 0; } }
.plate { position: absolute; z-index: 5; left: 0; right: 0; top: 50%; bottom: 13%; display: grid; place-content: center; justify-items: center; gap: clamp(10px, 1.6vw, 16px); text-align: center; padding: 0 clamp(20px, 6vw, 72px); color: var(--door-ink); opacity: var(--plate); transform: translateY(calc((1 - var(--plate)) * 14px)); text-shadow: 0 2px 14px rgba(0, 0, 0, .45); }
.plate::before { content: ""; position: absolute; z-index: -1; left: 50%; top: 50%; width: min(94%, 42rem); height: 128%; transform: translate(-50%, -50%); background: radial-gradient(closest-side, var(--leaf-b) 66%, color-mix(in srgb, var(--leaf-b) 75%, transparent) 84%, transparent); pointer-events: none; }
.plate h2 { font-size: clamp(2.3rem, 1.4rem + 3.4vw, 4.4rem); color: var(--door-ink); }
.plate .yours { font-family: var(--serif); font-size: clamp(1.3rem, 1rem + 1.3vw, 2rem); line-height: 1.15; color: var(--door-ink); margin-top: -4px; }
.btn-door { background: #eef3f8; color: #121c28; text-shadow: none; margin-top: 6px; box-shadow: 0 0 0 1px rgba(255, 255, 255, .3), 0 10px 30px -10px rgba(0, 0, 0, .6); }
.btn-door:hover { background: #fff; text-decoration: none; }
.btn-door::after { background: linear-gradient(105deg, transparent 38%, rgba(18, 28, 40, .18) 50%, transparent 62%) !important; }
/* pinned run = door closing (--run). The stage is the real screen height (--vh, set by script) minus header and footer,
   and the footer docks right under it while pinned, so the door shuts exactly at the page end with the footer attached. */
.finale { --run: 72svh; }
/* The pinned stage never gets shorter than the door's minimum height (380px + arch + gap). On screens too short for
   door + footer together, the footer isn't docked: it follows the door and the arrival glide brings it up. */
.finale { --stage-h: max(calc(var(--vh, 100svh) - var(--hh) - var(--fh)), 420px); }
.doors-motion .finale { height: calc(var(--stage-h) + var(--run)); padding: 0; }
.foot-dock .site-footer { position: sticky; bottom: 0; z-index: 3; }
/* "Sovereign AI." lights the moment the doors meet, together with the footer text */
.doors-motion .doorway .plate { opacity: 0; transform: translateY(12px); transition: opacity .45s var(--ease), transform .45s var(--ease); }
.doors-motion .doorway.is-sealed .plate { opacity: 1; transform: none; }
.doors-motion .finale-stage { position: sticky; top: var(--hh); height: var(--stage-h); }
.doors-motion .plate { pointer-events: none; }
.doors-motion .is-sealed .plate { pointer-events: auto; }
@media (max-width: 760px) {
  .arch { --t: 10px; }
  .arch::after { left: calc(-1 * var(--t) - 8px); right: calc(-1 * var(--t) - 8px); }
  .finale { --gate-gap: 14px; }
  .doorway { perspective: 900px; }
  .finale { --run: 60svh; }
  .strap { width: 52%; height: 7px; } .strap::after { right: -15px; width: 18px; height: 17px; }
  .strap::before { background-size: 70px 7px, 7px 7px; background-position: 12px 50%, 36% 50%; }
  .strap.s1 { top: 24%; } .strap.s2 { top: 90%; }
  .ring { top: 37%; transform: scale(.75); }
  .leaf.l .ring { right: 5%; } .leaf.r .ring { left: 5%; }
  .emblem { top: 6%; height: 15%; }
  .plate { top: 47%; bottom: 13%; padding: 0 18px; }
  .hall { padding: 0 18%; }
}

/* ---------- Form errors: a clear error colour on the field, its message and the summary (AA in both themes) ---------- */
:root { --err: #ff9b91; }
:root[data-theme="light"] { --err: #b42318; }
.field [aria-invalid="true"] { border-color: var(--err); box-shadow: 0 0 0 1px var(--err); }
.field [aria-invalid="true"]:focus-visible { outline-color: var(--err); border-color: var(--err); }
.field-error { color: var(--err); }
.form-status[data-kind="error"] { border-color: var(--err); }

/* ---------- Everyone: the castle's looping CSS pauses while the drawing is off screen (.in-view set by script) ---------- */
.keep-card:not(.in-view) .keep-svg .shimmer path, .keep-card:not(.in-view) .keep-svg .crest-glow { animation-play-state: paused !important; }

/* ---------- Lite mode (html.lite): same layout, colours and words, without the effects that are slow to draw
   without a GPU. Frosted glass becomes a near-solid fill of the same colours; blur, glow, grain and masks go;
   looping animations stop. Canvas effects are made static by the script. ---------- */
html.lite body::before { display: none; }
html.lite .atmos::after { -webkit-mask-image: none; mask-image: none; opacity: .45; }
html.lite .bg-mark { -webkit-mask-image: none; mask-image: none; }
html.lite .site-header { -webkit-backdrop-filter: none; backdrop-filter: none; background: color-mix(in srgb, var(--bg) 96%, transparent); }
html.lite .card, html.lite .card:hover, html.lite .keep-card, html.lite .bench {
  -webkit-backdrop-filter: none; backdrop-filter: none; background: linear-gradient(var(--card), var(--card)), var(--bg); }
html.lite .keep-svg .win-lit, html.lite .keep-svg .shimmer path, html.lite .keep-svg .crest-mark, html.lite .emblem,
html.lite .doorway.is-sealed .emblem, html.lite .hall svg, html.lite .seam-arc path, html.lite .strap::after { filter: none; }
html.lite .keep-svg .crest-glow { filter: none; opacity: .25; animation: none !important; }
html.lite .keep-svg .shimmer path { animation: none !important; stroke-dasharray: none; stroke-width: 1.2; }
html.lite .keep-card[data-mode="sigil"].is-sealed .shimmer path { opacity: .35; }
html.lite .prompt.typing .typed::after { animation: none !important; }