/* SEV hero. All component styles are scoped to .sev-hero. No dependencies. */
.sev-hero {
  --sev-paper: #f4f1e9;
  --sev-ink: #201f1b;
  --sev-accent: #a94d27;
  --sev-muted: #6d685f;
  --sev-line: #d6d1c6;
  --sev-sans: Arial, Helvetica, sans-serif;
  --sev-serif: Georgia, 'Times New Roman', serif;
  --sev-mono: 'Courier New', Courier, monospace;
  --sev-play: paused;
  box-sizing: border-box;
  container-type: inline-size;
  isolation: isolate;
  position: relative;
  color: var(--sev-ink);
  background: var(--sev-paper);
  font-family: var(--sev-sans);
  -webkit-font-smoothing: antialiased;
}
.sev-hero *, .sev-hero *::before, .sev-hero *::after { box-sizing: border-box; }
.sev-hero [hidden] { display: none !important; }
.sev-hero button { font: inherit; color: inherit; }
.sev-hero button:not(:disabled) { cursor: pointer; }
.sev-hero button:focus-visible {
  outline: 2px solid var(--sev-accent);
  outline-offset: 5px;
}
.sev-hero ::selection { background: var(--sev-ink); color: var(--sev-paper); }
.sev-hero .sev-shell { max-width: 1600px; margin-inline: auto; padding: 0 clamp(24px, 4.6vw, 76px); }
.sev-hero .sev-mono { font-family: var(--sev-mono); font-size: 10px; font-weight: 400; letter-spacing: .09em; line-height: 1.5; }
.sev-hero .sev-masthead { min-height: 105px; display: flex; align-items: center; justify-content: space-between; gap: 24px; border-bottom: 1px solid var(--sev-line); }
.sev-hero .sev-brand { display: flex; align-items: center; gap: 17px; }
.sev-hero .sev-wordmark { font-size: 38px; font-weight: 500; letter-spacing: -.085em; line-height: 1; }
.sev-hero .sev-brand-divider { width: 1px; height: 25px; background: var(--sev-line); }
.sev-hero .sev-brand-description { font-family: var(--sev-mono); font-size: 10px; letter-spacing: .06em; line-height: 1.55; }
.sev-hero .sev-parent { display: flex; align-items: center; gap: 10px; }
.sev-hero .sev-parent-mark { width: 35px; height: 35px; flex: 0 0 auto; }
.sev-hero .sev-parent-name { font-size: 18px; letter-spacing: -.055em; }
.sev-hero .sev-parent-by { font-family: var(--sev-mono); font-size: 10px; color: var(--sev-muted); margin-right: 5px; }
.sev-hero .sev-composition { position: relative; display: grid; grid-template-columns: 1.25fr 1fr; align-items: center; padding-block: clamp(40px, 4vw, 64px) 28px; }
.sev-hero .sev-copy { position: relative; z-index: 2; min-width: 0; padding-block: 12px 34px; }
.sev-hero .sev-eyebrow { display: flex; align-items: center; gap: 11px; margin: 0 0 36px; color: var(--sev-muted); }
.sev-hero .sev-eyebrow::before { content: ''; width: 6px; height: 6px; background: var(--sev-accent); }
.sev-hero .sev-headline { position: relative; max-width: 100%; margin: 0; font-size: clamp(48px, 5.9vw, 90px); font-weight: 400; line-height: .99; letter-spacing: -.075em; }
.sev-hero .sev-headline span { display: block; }
.sev-hero .sev-headline .sev-editorial { font-family: var(--sev-serif); font-style: italic; font-size: 1.04em; font-weight: 400; line-height: 1.13; letter-spacing: -.072em; }
.sev-hero .sev-description { max-width: 410px; margin: 32px 0 26px; font-size: 16px; line-height: 1.65; color: var(--sev-muted); text-wrap: pretty; }
.sev-hero .sev-cta { min-height: 49px; display: inline-flex; align-items: center; gap: 29px; padding: 0 20px; border: 1px solid var(--sev-ink); background: var(--sev-ink); color: var(--sev-paper); font-size: 13px; transition: background .2s ease, border-color .2s ease; }
.sev-hero .sev-cta:hover { background: var(--sev-accent); border-color: var(--sev-accent); }
.sev-hero .sev-cta svg { width: 17px; height: 17px; }
.sev-hero .sev-cta-note { max-width: 410px; margin: 13px 0 0; font-size: 11px; line-height: 1.6; color: var(--sev-muted); text-wrap: pretty; }
.sev-hero .sev-art { position: relative; min-width: 0; align-self: stretch; display: flex; align-items: center; margin: 0 -20px 0 5px; }
.sev-hero .sev-lens { width: 100%; height: auto; max-height: 500px; overflow: visible; display: block; }
.sev-hero .sev-art-label { position: absolute; inset: 4px 22px auto 48px; display: flex; justify-content: space-between; gap: 12px; color: var(--sev-muted); }
.sev-hero .sev-art-caption { position: absolute; inset: auto 22px 7px 48px; margin: 0; display: flex; justify-content: space-between; align-items: center; gap: 16px; color: var(--sev-muted); }
.sev-hero .sev-coordinates { color: var(--sev-accent); }
.sev-hero .sev-field-line { stroke: var(--sev-line); fill: none; }
.sev-hero .sev-frame { stroke: var(--sev-ink); fill: none; }
.sev-hero .sev-wire { stroke: var(--sev-ink); fill: none; stroke-width: .8; opacity: .7; }
.sev-hero .sev-wire-copper { stroke: var(--sev-accent); fill: none; stroke-width: .8; opacity: .72; }
.sev-hero .sev-ticks { fill: none; stroke: var(--sev-muted); stroke-width: .65; }
.sev-hero .sev-sheet { transform-box: view-box; transform-origin: 300px 300px; animation-play-state: var(--sev-play); }
.sev-hero .sev-sheet-back { animation: sev-drift-back 26s ease-in-out infinite alternate; animation-play-state: var(--sev-play); }
.sev-hero .sev-sheet-front { animation: sev-drift-front 31s ease-in-out infinite alternate; animation-play-state: var(--sev-play); }
.sev-hero .sev-scan { animation: sev-scan 18s linear infinite; animation-play-state: var(--sev-play); opacity: 0; }
.sev-hero .sev-scan-line { stroke: var(--sev-accent); stroke-width: .7; }
.sev-hero .sev-scan-echo { stroke: var(--sev-accent); stroke-width: 8; opacity: .035; }
.sev-hero .sev-registration { fill: var(--sev-paper); stroke: var(--sev-accent); stroke-width: 1; }
.sev-hero .sev-center { fill: var(--sev-accent); }
.sev-hero .sev-signal-shift { animation: sev-signal-shift 17s steps(1, end) infinite; animation-play-state: var(--sev-play); opacity: .55; }
.sev-hero .sev-focus-ring { stroke: var(--sev-accent); fill: none; stroke-width: 1; opacity: .4; transform-origin: 302px 298px; }
.sev-hero[data-motion='running'] { --sev-play: running; }
.sev-hero.is-tracing .sev-scan { animation-name: sev-trace; animation-duration: 4.8s; animation-iteration-count: 1; }
.sev-hero.is-tracing .sev-focus-ring { animation: sev-focus 4.8s ease-out both; animation-play-state: var(--sev-play); }
.sev-hero.is-tracing .sev-wire-copper { opacity: 1; }
.sev-hero .sev-query { display: grid; grid-template-columns: 1fr auto; gap: 30px; align-items: center; padding-block: 23px; border-top: 1px solid var(--sev-line); border-bottom: 1px solid var(--sev-line); }
.sev-hero .sev-query-main { display: flex; align-items: center; gap: 30px; min-width: 0; }
.sev-hero .sev-query-label { flex: 0 0 auto; display: grid; gap: 3px; color: var(--sev-muted); }
.sev-hero .sev-query-label b { color: var(--sev-accent); font-weight: 400; }
.sev-hero .sev-question { margin: 0; font-family: var(--sev-serif); font-size: clamp(16px, 1.5vw, 23px); line-height: 1.4; letter-spacing: -.025em; }
.sev-hero .sev-query-controls { display: flex; align-items: center; gap: 14px; }
.sev-hero .sev-count { white-space: nowrap; color: var(--sev-muted); }
.sev-hero .sev-next { display: flex; align-items: center; justify-content: center; width: 45px; height: 45px; border: 1px solid var(--sev-line); border-radius: 50%; background: transparent; transition: border-color .2s, color .2s; }
.sev-hero .sev-next:hover { border-color: var(--sev-accent); color: var(--sev-accent); }
.sev-hero .sev-next svg { width: 16px; height: 16px; }
.sev-hero .sev-bottom { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.sev-hero .sev-path { display: flex; align-items: center; flex-wrap: wrap; column-gap: 15px; row-gap: 8px; color: var(--sev-muted); }
.sev-hero .sev-path span { white-space: nowrap; }
.sev-hero .sev-path b { color: var(--sev-accent); font-weight: 400; margin-right: 7px; }
.sev-hero .sev-path i { height: 1px; width: 26px; background: var(--sev-line); }
.sev-hero .sev-motion { min-height: 44px; padding: 8px 0 8px 12px; border: 0; background: transparent; display: flex; align-items: center; gap: 9px; white-space: nowrap; color: var(--sev-muted); font-family: var(--sev-mono); font-size: 10px; }
.sev-hero .sev-motion:disabled { cursor: default; }
.sev-hero .sev-motion-icon { width: 11px; height: 11px; }
.sev-hero .sev-pause-glyph { display: block; }
.sev-hero .sev-play-glyph { display: none; }
.sev-hero[data-motion='paused'] .sev-pause-glyph { display: none; }
.sev-hero[data-motion='paused'] .sev-play-glyph { display: block; }
.sev-hero .sev-sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
@keyframes sev-drift-back {
  from { transform: translate(-3px, -4px) rotate(-2deg); }
  to { transform: translate(3px, 4px) rotate(2deg); }
}
@keyframes sev-drift-front {
  from { transform: translate(4px, 3px) rotate(2.5deg); }
  to { transform: translate(-4px, -3px) rotate(-2.5deg); }
}
@keyframes sev-scan {
  0%, 14% { transform: translateY(-180px); opacity: 0; }
  18% { opacity: .65; }
  61% { opacity: .65; }
  68%, 100% { transform: translateY(210px); opacity: 0; }
}
@keyframes sev-trace {
  0% { transform: translateY(-180px); opacity: 0; }
  9%, 82% { opacity: .85; }
  100% { transform: translateY(210px); opacity: 0; }
}
@keyframes sev-signal-shift {
  0%, 67%, 68.1%, 100% { transform: translateX(0); opacity: .55; }
  67.3% { transform: translateX(2px); opacity: .35; }
  67.7% { transform: translateX(-1px); opacity: .5; }
}
@keyframes sev-focus {
  0% { transform: scale(1.4); opacity: .1; }
  60%, 88% { transform: scale(1); opacity: .9; }
  100% { transform: scale(1); opacity: .4; }
}
@media (max-width: 1000px) {
  .sev-hero .sev-composition { grid-template-columns: 1.3fr 1fr; }
  .sev-hero .sev-headline { font-size: 5.9vw; }
  .sev-hero .sev-art { margin-right: -15px; margin-left: -6px; }
  .sev-hero .sev-art-label, .sev-hero .sev-art-caption { left: 20px; right: 10px; }
  .sev-hero .sev-art-label span:last-child { display: none; }
  .sev-hero .sev-description { max-width: 310px; font-size: 15px; }
  .sev-hero .sev-query-main { gap: 20px; }
  .sev-hero .sev-query { gap: 15px; }
}
@media (max-width: 700px) {
  .sev-hero .sev-shell { padding-inline: 24px; }
  .sev-hero .sev-masthead { min-height: 87px; }
  .sev-hero .sev-wordmark { font-size: 33px; }
  .sev-hero .sev-brand { gap: 12px; }
  .sev-hero .sev-brand-description { font-size: 8px; }
  .sev-hero .sev-parent-name { font-size: 15px; }
  .sev-hero .sev-parent-by { display: none; }
  .sev-hero .sev-parent-mark { width: 28px; height: 28px; }
  .sev-hero .sev-parent { gap: 7px; }
  .sev-hero .sev-composition { grid-template-columns: 1fr; padding-block: 40px 25px; }
  .sev-hero .sev-copy { padding-block: 0; }
  .sev-hero .sev-eyebrow { margin-bottom: 25px; font-size: 9px; }
  .sev-hero .sev-headline { font-size: clamp(38px, 9.2vw, 64px); max-width: 100%; }
  .sev-hero .sev-description { max-width: 330px; margin-block: 22px; font-size: 15px; }
  .sev-hero .sev-art { margin: 26px auto 0; width: min(100%, 420px); padding-block: 8px 20px; }
  .sev-hero .sev-art-label { top: 0; left: 16px; right: 16px; font-size: 8px; }
  .sev-hero .sev-art-label span:last-child { display: block; }
  .sev-hero .sev-art-caption { bottom: 0; left: 16px; right: 16px; font-size: 8px; }
  .sev-hero .sev-query { padding-block: 20px; gap: 14px; }
  .sev-hero .sev-query-main { display: block; }
  .sev-hero .sev-query-label { display: flex; gap: 10px; margin-bottom: 9px; font-size: 8px; }
  .sev-hero .sev-question { font-size: 19px; }
  .sev-hero .sev-query-controls { flex-direction: column-reverse; gap: 5px; }
  .sev-hero .sev-count { font-size: 8px; }
  .sev-hero .sev-bottom { align-items: flex-start; padding-block: 16px; gap: 10px; }
  .sev-hero .sev-path { font-size: 8px; gap: 7px; padding-top: 16px; }
  .sev-hero .sev-path b { margin-right: 3px; }
  .sev-hero .sev-path i { width: 10px; }
  .sev-hero .sev-motion { font-size: 9px; padding-left: 0; }
}
@media (max-width: 370px) {
  .sev-hero .sev-shell { padding-inline: 18px; }
  .sev-hero .sev-brand-description, .sev-hero .sev-brand-divider { display: none; }
  .sev-hero .sev-headline { font-size: 10.3vw; }
  .sev-hero .sev-bottom { flex-wrap: wrap; }
}
/* Embedded narrow containers get the same layout as narrow viewports. */
@container (max-width: 700px) {
  .sev-hero .sev-composition { grid-template-columns: 1fr; padding-block: 40px 25px; }
  .sev-hero .sev-headline { font-size: clamp(33px, 9.2cqw, 64px); max-width: 100%; }
  .sev-hero .sev-art { margin: 26px auto 0; width: min(100%, 420px); padding-block: 8px 20px; }
  .sev-hero .sev-art-label { top: 0; left: 16px; right: 16px; }
  .sev-hero .sev-art-caption { bottom: 0; left: 16px; right: 16px; }
  .sev-hero .sev-query-main { display: block; }
  .sev-hero .sev-query-label { display: flex; gap: 10px; margin-bottom: 9px; font-size: 8px; }
  .sev-hero .sev-bottom { flex-wrap: wrap; }
}
@media (prefers-reduced-motion: reduce) {
  .sev-hero *, .sev-hero *::before, .sev-hero *::after { animation: none !important; transition: none !important; }
  .sev-hero .sev-scan, .sev-hero .sev-signal-shift { display: none; }
}
@media (forced-colors: active) {
  .sev-hero { --sev-ink: CanvasText; --sev-paper: Canvas; --sev-accent: LinkText; --sev-muted: CanvasText; --sev-line: GrayText; }
  .sev-hero .sev-cta { border: 1px solid ButtonText; }
}

/* Reviewed refinement: reveal a real saved example on explicit interaction. */
/* Noticeable optical motion; transform/opacity only, no per-frame JS. */
@media(prefers-reduced-motion:no-preference){
  .sev-hero .sev-sheet-back{animation-name:sev-optical-back;animation-duration:12s}
  .sev-hero .sev-sheet-front{animation-name:sev-optical-front;animation-duration:15s}
  .sev-hero .sev-scan{animation-duration:10s;animation-delay:-1.8s}
  .sev-hero .sev-center{transform-box:fill-box;transform-origin:center;animation:sev-focal-breathe 5s ease-in-out infinite;animation-play-state:var(--sev-play)}
  .sev-hero .sev-cta svg,.sev-hero .sev-next svg{transition:transform .28s cubic-bezier(.16,1,.3,1)}
  .sev-hero .sev-cta:hover svg,.sev-hero .sev-cta:focus-visible svg{transform:translate(2px,-2px)}
  .sev-hero .sev-next:hover svg,.sev-hero .sev-next:focus-visible svg{transform:translateX(3px)}
  .sev-hero[data-walkthrough=open] .sev-center{animation-play-state:paused}
  .sev-hero[data-user-motion=off] *{transition:none!important}
}
@keyframes sev-optical-back{from{transform:translate(-7px,-6px) rotate(-7deg)}to{transform:translate(7px,6px) rotate(7deg)}}
@keyframes sev-optical-front{from{transform:translate(7px,5px) rotate(8deg)}to{transform:translate(-7px,-5px) rotate(-8deg)}}
@keyframes sev-focal-breathe{0%,100%{transform:scale(1);opacity:.85}50%{transform:scale(1.3);opacity:1}}
.sev-hero .sev-art-label{padding-bottom:8px;border-bottom:1px solid var(--sev-line)}
.sev-hero .sev-art-caption{padding-top:8px;border-top:1px solid var(--sev-line)}
.sev-hero .sev-specimen{position:absolute;z-index:3;left:9%;right:6%;bottom:48px;padding:18px 20px;background:var(--sev-paper);border:1px solid var(--sev-line);border-left:2px solid var(--sev-accent);box-shadow:0 8px 24px #201f1b08}
.sev-hero .sev-specimen:before{content:'';position:absolute;height:28px;width:1px;background:var(--sev-accent);left:50%;bottom:100%}
.sev-hero .sev-specimen-top,.sev-hero .sev-specimen-bottom{display:flex;align-items:center;justify-content:space-between;gap:12px;color:var(--sev-muted)}
.sev-hero .sev-specimen-top button{border:0;background:transparent;font-size:22px;padding:0 6px;min-width:32px;min-height:32px}
.sev-hero .sev-specimen h2{font:22px/1.25 var(--sev-serif);letter-spacing:-.02em;margin:12px 0}
.sev-hero .sev-specimen p{font:14px/1.6 var(--sev-sans);margin:10px 0 16px;color:var(--sev-muted)}
.sev-hero .sev-specimen blockquote{font:18px/1.5 var(--sev-serif);margin:12px 0}
.sev-hero .sev-specimen a{color:var(--sev-accent);font:11px/1.5 var(--sev-mono);text-underline-offset:3px}
.sev-hero .sev-specimen-bottom{margin-top:18px;padding-top:12px;border-top:1px solid var(--sev-line);font-size:8px;letter-spacing:.04em}
.sev-hero .sev-specimen-bottom button{border:0;background:transparent;color:var(--sev-accent);font:11px var(--sev-mono);padding:8px 0}
.sev-hero .sev-issuer-list{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0}
.sev-hero .sev-issuer-list span{font:12px var(--sev-mono);border:1px solid var(--sev-line);padding:7px 10px}
.sev-hero .sev-path button{border:0;background:transparent;font:inherit;color:inherit;padding:10px 0;min-height:40px;border-bottom:1px solid transparent;white-space:nowrap}
.sev-hero .sev-path button[aria-pressed=true]{border-color:var(--sev-accent);color:var(--sev-ink)}
.sev-hero[data-walkthrough=open] .sev-sheet{animation-play-state:paused;opacity:.35}
.sev-hero[data-walkthrough=open] .sev-scan,.sev-hero[data-walkthrough=open] .sev-signal-shift{visibility:hidden}
.sev-hero[data-walkthrough=open] .sev-focus-ring{opacity:1}
@media(max-width:700px){.sev-hero .sev-specimen{left:2%;right:2%;bottom:38px;padding:13px 16px}.sev-hero .sev-specimen h2{font-size:20px}.sev-hero .sev-specimen blockquote{font-size:16px}.sev-hero .sev-specimen p{font-size:12px}.sev-hero .sev-art:has(.sev-specimen:not([hidden])){min-height:410px}.sev-hero .sev-path{padding-top:0}}
@container(max-width:700px){.sev-hero .sev-art:has(.sev-specimen:not([hidden])){min-height:410px}.sev-hero .sev-specimen{left:2%;right:2%;bottom:38px}}