/* MjolnirVSS landing page */

:root {
  --navy-900: #05101d;
  --navy-800: #0a1a2d;
  --navy-700: #102741;
  --navy-600: #1b3a5c;
  --navy-line: rgba(122, 165, 210, .18);

  --blue: #0f5ba8;
  --blue-deep: #0b4380;
  --blue-bright: #5aa9f0;
  --blue-soft: #eef4fb;

  --ink: #0e1621;
  --body: #4a5560;
  --muted: #6c7784;
  --canvas: #ffffff;
  --surface: #f5f7fa;
  --line: #e2e7ec;
  --line-strong: #cfd6de;

  --on-dark: #e8eef5;
  --on-dark-muted: #9fb2c6;

  --max: 1120px;
  --sans: "Segoe UI Variable Text", "Segoe UI", -apple-system, BlinkMacSystemFont, system-ui, Roboto, Helvetica, Arial, sans-serif;
  --mono: "Cascadia Mono", "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --radius: 10px;
  --shadow-lift: 0 24px 60px rgba(5, 16, 29, .28);
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--canvas);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; }
a { color: var(--blue-deep); }
h1, h2, h3, p, ul, ol, dl, dd, pre, table { margin-top: 0; }
dd { margin-left: 0; }

code {
  font-family: var(--mono);
  font-size: .9em;
  background: var(--blue-soft);
  border-radius: 4px;
  padding: .1em .35em;
}

:focus-visible {
  outline: 2px solid var(--blue-bright);
  outline-offset: 3px;
  border-radius: 4px;
}

.shell {
  width: min(var(--max), calc(100% - 56px));
  margin-inline: auto;
}

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.skip-link {
  position: fixed;
  z-index: 200;
  top: 12px; left: 12px;
  transform: translateY(-160%);
  padding: 10px 16px;
  border-radius: 8px;
  background: var(--navy-800);
  color: #fff;
  font-weight: 600;
  text-decoration: none;
}
.skip-link:focus { transform: translateY(0); }

.dot {
  display: inline-block;
  width: 3px; height: 3px;
  margin: 0 .55em;
  border-radius: 50%;
  background: currentColor;
  opacity: .45;
  vertical-align: middle;
}

/* ---------- buttons ---------- */

.btn {
  display: inline-block;
  padding: 13px 24px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  transition: background-color .15s ease, border-color .15s ease, color .15s ease;
}
.btn-sm { padding: 8px 16px; font-size: 14px; }

.btn-primary {
  background: var(--blue);
  border-color: var(--blue);
  color: #fff;
}
.btn-primary:hover { background: #1269bd; border-color: #1269bd; }

.btn-quiet {
  color: var(--on-dark);
  border-color: rgba(160, 195, 230, .34);
}
.btn-quiet:hover { border-color: rgba(160, 195, 230, .7); background: rgba(90, 169, 240, .08); }

.btn-quiet-dark {
  color: var(--on-dark);
  border-color: rgba(160, 195, 230, .34);
}
.btn-quiet-dark:hover { border-color: rgba(160, 195, 230, .7); background: rgba(90, 169, 240, .08); }

.btn-ghost {
  color: var(--on-dark);
  border-color: rgba(160, 195, 230, .3);
}
.btn-ghost:hover { border-color: rgba(160, 195, 230, .65); }

/* ---------- header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 26, 45, .9);
  border-bottom: 1px solid var(--navy-line);
  backdrop-filter: blur(14px) saturate(140%);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 32px;
  min-height: 64px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 600;
  letter-spacing: -.01em;
  text-decoration: none;
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 32px; height: 32px;
  border-radius: 8px;
  background: #0f2f52;
  border: 1px solid rgba(122, 176, 226, .3);
  color: var(--blue-bright);
}
.brand-mark svg { display: block; width: 20px; height: 20px; }
.nav {
  display: flex;
  gap: 26px;
  margin-right: auto;
}
.nav a {
  color: var(--on-dark-muted);
  font-size: 14.5px;
  text-decoration: none;
}
.nav a:hover { color: #fff; }

/* ---------- hero ---------- */

.hero {
  background:
    radial-gradient(900px 480px at 50% -8%, rgba(37, 99, 173, .38), transparent 70%),
    linear-gradient(180deg, var(--navy-800), var(--navy-900));
  color: var(--on-dark);
  padding-block: clamp(64px, 8vw, 104px) 0;
  text-align: center;
}
.hero-inner { display: block; }

.eyebrow {
  margin: 0 0 22px;
  color: var(--blue-bright);
  font: 600 12px/1.4 var(--mono);
  letter-spacing: .1em;
  text-transform: uppercase;
}

h1 {
  max-width: 17ch;
  margin: 0 auto 22px;
  color: #fff;
  font-size: clamp(34px, 5.2vw, 58px);
  font-weight: 650;
  line-height: 1.06;
  letter-spacing: -.028em;
  text-wrap: balance;
}

.lede {
  max-width: 62ch;
  margin: 0 auto 30px;
  color: var(--on-dark-muted);
  font-size: clamp(16px, 1.5vw, 18.5px);
  line-height: 1.62;
  text-wrap: pretty;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin: 0 0 18px;
}

.hero-note {
  max-width: 52ch;
  margin: 0 auto;
  color: #7f94aa;
  font-size: 14px;
}

.hero-shot {
  max-width: 940px;
  margin: clamp(44px, 6vw, 72px) auto 0;
  border: 1px solid rgba(140, 180, 220, .22);
  border-radius: 12px 12px 0 0;
  border-bottom: 0;
  overflow: hidden;
  background: #fff;
  box-shadow: var(--shadow-lift);
}
.hero-shot img { display: block; width: 100%; }

/* ---------- trust strip ---------- */

.strip {
  background: var(--navy-900);
  border-bottom: 1px solid var(--line);
  padding-block: 26px;
}
.strip-inner {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 20px 28px;
  margin-block: 0;
}
.strip-item dt {
  color: #62788f;
  font: 600 11px/1.4 var(--mono);
  letter-spacing: .09em;
  text-transform: uppercase;
  margin-bottom: 5px;
}
.strip-item dd {
  color: var(--on-dark);
  font-size: 14.5px;
  font-weight: 500;
}

/* ---------- sections ---------- */

.section { padding-block: clamp(68px, 8vw, 104px); }
.section-surface { background: var(--surface); border-block: 1px solid var(--line); }

.intro { max-width: 68ch; margin: 0 0 clamp(36px, 4vw, 54px); }
.kicker {
  margin: 0 0 12px;
  color: var(--blue);
  font: 600 12px/1.4 var(--mono);
  letter-spacing: .1em;
  text-transform: uppercase;
}
h2 {
  margin: 0 0 16px;
  font-size: clamp(25px, 3.1vw, 36px);
  font-weight: 650;
  line-height: 1.16;
  letter-spacing: -.024em;
  text-wrap: balance;
}
.intro p { margin: 0; color: var(--body); font-size: 17px; text-wrap: pretty; }
.intro p + p { margin-top: 12px; }

h3 {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 650;
  letter-spacing: -.012em;
}

/* ---------- cards ---------- */

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.cards-3 { grid-template-columns: repeat(auto-fit, minmax(330px, 1fr)); }
.card {
  background: var(--canvas);
  padding: 30px 28px;
}
.section-surface .card { background: #fff; }
.card p { margin: 0; color: var(--body); font-size: 15px; }

/* ---------- steps ---------- */

.steps {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 34px;
  margin: 0;
  padding: 0;
}
.steps li { border-top: 2px solid var(--blue); padding-top: 20px; }
.step-no {
  margin: 0 0 10px;
  color: var(--blue);
  font: 600 12px/1 var(--mono);
  letter-spacing: .1em;
}
.steps p:last-child { margin: 0; color: var(--body); font-size: 15px; }

/* ---------- gallery ---------- */

.gallery {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 30px 28px;
}
.gallery figure { margin: 0; }
.gallery-lead { grid-column: 1 / -1; }
.gallery-lead img { max-width: 760px; margin-inline: auto; }
.gallery-lead figcaption { max-width: 760px; margin-inline: auto; }
.gallery img {
  display: block;
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: #fff;
}
.gallery figcaption {
  margin-top: 12px;
  color: var(--muted);
  font-size: 14px;
}

/* ---------- cli ---------- */

.cli {
  margin-top: clamp(38px, 4vw, 56px);
  background: var(--navy-900);
  border-radius: var(--radius);
  padding: clamp(22px, 3vw, 32px);
}
.cli-label {
  margin: 0 0 14px;
  color: var(--on-dark-muted);
  font: 600 11px/1.4 var(--mono);
  letter-spacing: .1em;
  text-transform: uppercase;
}
.cli pre {
  margin: 0;
  overflow-x: auto;
  color: #dbe7f3;
  font-family: var(--mono);
  font-size: 13.5px;
  line-height: 1.8;
}
.cli code { background: none; padding: 0; color: inherit; font-size: inherit; }
.cli .cm { color: #6f88a3; }
.cli-note {
  margin: 20px 0 0;
  color: var(--on-dark-muted);
  font-size: 14.5px;
  max-width: 70ch;
}
.cli-note code { background: rgba(90, 169, 240, .16); color: #c8dcf0; }

/* ---------- tables ---------- */

.table-wrap { overflow-x: auto; }

table { width: 100%; border-collapse: collapse; }
caption { text-align: left; }

.results th, .results td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  font-size: 15px;
}
.results thead th {
  color: var(--muted);
  font: 600 11.5px/1.4 var(--mono);
  letter-spacing: .07em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--line-strong);
}
.results tbody th { font-weight: 600; }
.results td { color: var(--body); }
.results .ok { color: var(--blue-deep); font-weight: 600; white-space: nowrap; }
.results tbody tr:last-child th, .results tbody tr:last-child td { border-bottom: 0; }

.note { margin: 16px 0 0; color: var(--muted); font-size: 14px; }

/* ---------- the alpha note ---------- */

.alpha {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px 44px;
  margin-top: clamp(38px, 4vw, 54px);
  padding-top: clamp(30px, 3.5vw, 42px);
  border-top: 1px solid var(--line-strong);
}
.alpha h3 { margin: 0 0 8px; font-size: 16px; }
.alpha p { margin: 0; color: var(--body); font-size: 15px; max-width: 46ch; }
.alpha ul { margin: 0; padding: 0; list-style: none; }
.alpha li {
  position: relative;
  padding: 7px 0 7px 22px;
  color: var(--body);
  font-size: 14.5px;
}
.alpha li::before {
  content: "\2014";
  position: absolute;
  left: 0;
  color: var(--line-strong);
}

/* ---------- why the name ---------- */

.name-block {
  max-width: 68ch;
  margin-inline: auto;
  text-align: center;
}
.name-story {
  margin: 0;
  color: var(--body);
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.65;
  text-wrap: pretty;
}

/* ---------- split (proven / not proven) ---------- */

.split {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 34px;
  margin-top: clamp(40px, 5vw, 60px);
  padding-top: clamp(34px, 4vw, 46px);
  border-top: 1px solid var(--line-strong);
}
.split-col > p { color: var(--muted); font-size: 14.5px; margin-bottom: 16px; }
.ticks, .crosses { margin: 0; padding: 0; list-style: none; }
.ticks li, .crosses li {
  position: relative;
  padding: 9px 0 9px 26px;
  color: var(--body);
  font-size: 15px;
  border-bottom: 1px solid var(--line);
}
.ticks li:last-child, .crosses li:last-child { border-bottom: 0; }
.ticks li::before, .crosses li::before {
  position: absolute;
  left: 0;
  top: 9px;
  font-weight: 700;
}
.ticks li::before { content: "\2713"; color: var(--blue); }
.crosses li::before { content: "\2014"; color: var(--line-strong); }

/* ---------- dark section ---------- */

.section-dark {
  background: var(--navy-800);
  color: var(--on-dark);
}
.section-dark h2 { color: #fff; }
.section-dark .kicker { color: var(--blue-bright); }
.section-dark .intro p { color: var(--on-dark-muted); }
.section-dark .intro strong { color: #fff; }
.section-dark h3 { color: #fff; }

.matrix th, .matrix td {
  padding: 13px 16px 13px 0;
  border-bottom: 1px solid var(--navy-line);
  text-align: left;
  font-size: 15px;
  vertical-align: top;
}
.matrix thead th {
  color: #7f95ac;
  font: 600 11.5px/1.4 var(--mono);
  letter-spacing: .07em;
  text-transform: uppercase;
}
.matrix tbody th { font-weight: 500; color: var(--on-dark); }
.matrix tbody tr:last-child th, .matrix tbody tr:last-child td { border-bottom: 0; }

.pill {
  display: inline-block;
  margin: 2px 6px 2px 0;
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid;
  font-size: 12.5px;
  font-weight: 600;
  white-space: nowrap;
}
.pill-vm { color: #8fc6ff; border-color: rgba(143, 198, 255, .4); background: rgba(90, 169, 240, .1); }
.pill-hw { color: #7fdcb4; border-color: rgba(127, 220, 180, .38); background: rgba(127, 220, 180, .09); }
.pill-impl { color: #b9c6d4; border-color: rgba(185, 198, 212, .32); background: rgba(185, 198, 212, .07); }
.pill-no { color: #f0b07a; border-color: rgba(240, 176, 122, .4); background: rgba(240, 176, 122, .09); }

.limits {
  margin-top: clamp(40px, 5vw, 58px);
  padding-top: clamp(30px, 4vw, 42px);
  border-top: 1px solid var(--navy-line);
  max-width: 76ch;
}
.limits ul { margin: 0; padding: 0; list-style: none; }
.limits li {
  position: relative;
  padding: 9px 0 9px 26px;
  color: var(--on-dark-muted);
  font-size: 15px;
}
.limits li::before {
  content: "\2014";
  position: absolute;
  left: 0;
  color: #44607d;
}

/* ---------- specs ---------- */

.specs {
  margin: 0;
  border-top: 1px solid var(--line);
}
.specs > div {
  display: grid;
  grid-template-columns: minmax(170px, 230px) 1fr;
  gap: 8px 40px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}
.specs dt { font-weight: 600; font-size: 15px; }
.specs dd { color: var(--body); font-size: 15px; }

.section-dark .specs { border-top-color: var(--navy-line); }
.section-dark .specs > div { border-bottom-color: var(--navy-line); }
.section-dark .specs dt { color: #fff; }
.section-dark .specs dd { color: var(--on-dark-muted); }
.section-dark code { background: rgba(90, 169, 240, .16); color: #c8dcf0; }

/* ---------- faq ---------- */

.faq { max-width: 82ch; border-top: 1px solid var(--line-strong); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  padding: 18px 34px 18px 0;
  position: relative;
  font-size: 16.5px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 16px;
  color: var(--blue);
  font-size: 21px;
  font-weight: 400;
  line-height: 1;
}
.faq details[open] summary::after { content: "\2212"; }
.faq details p {
  margin: 0;
  padding: 0 40px 22px 0;
  color: var(--body);
  font-size: 15.5px;
  max-width: 72ch;
}

/* ---------- final cta ---------- */

.cta {
  background:
    radial-gradient(700px 360px at 50% 110%, rgba(37, 99, 173, .32), transparent 70%),
    var(--navy-900);
  color: var(--on-dark);
  padding-block: clamp(70px, 8vw, 100px);
  text-align: center;
}
.cta h2 { color: #fff; max-width: 20ch; margin-inline: auto; }
.cta > .shell > p { max-width: 58ch; margin: 0 auto 26px; color: var(--on-dark-muted); font-size: 17px; }

/* ---------- footer ---------- */

.site-footer {
  background: var(--navy-900);
  border-top: 1px solid var(--navy-line);
  padding-block: 28px;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 28px;
  justify-content: space-between;
}
.footer-inner p { margin: 0; color: #7f94aa; font-size: 14px; }
.footer-inner a { color: var(--on-dark-muted); text-decoration: none; }
.footer-inner a:hover { color: #fff; text-decoration: underline; }

/* ---------- responsive ---------- */

@media (max-width: 900px) {
  .nav { display: none; }
  .brand { margin-right: auto; }
}

@media (max-width: 760px) {
  .gallery { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 640px) {
  .shell { width: calc(100% - 36px); }
  .specs > div { grid-template-columns: 1fr; gap: 4px; }
  .card { padding: 26px 22px; }
  .hero-shot { border-radius: 8px 8px 0 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition-duration: .01ms !important; }
}