/* AION public site. Palette from the AION mark; engineering-paper ground. */
:root {
  --paper: #EEF3F6;
  --paper-2: #E3EBF0;
  --white: #FFFFFF;
  --ink: #0B2545;
  --ink-2: #3A5068;
  --cyan: #0E8FC9;
  --cyan-deep: #0A6F9E;
  --obs: #2E7D5B;
  --mod: #B7791F;
  --rule: #C8D3DC;
  --grid: rgba(11, 37, 69, .06);
  --display: "Schibsted Grotesk", "Helvetica Neue", Arial, sans-serif;
  --body: "Source Serif 4", Georgia, "Times New Roman", serif;
  --wrap: 1180px;
  --gutter: clamp(16px, 4vw, 40px);
  --step--1: .875rem;
  --step-0: 1.0625rem;
  --step-1: 1.3125rem;
  --step-2: 1.6875rem;
  --step-3: clamp(1.9rem, 1.4rem + 1.8vw, 2.6rem);
  --step-4: clamp(2.5rem, 1.6rem + 3.6vw, 4.4rem);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 var(--step-0)/1.62 var(--body);
  font-optical-sizing: auto;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--cyan-deep); text-underline-offset: .18em; text-decoration-thickness: 1px; }
a:hover { color: var(--ink); }
:focus-visible { outline: 3px solid var(--cyan); outline-offset: 3px; border-radius: 2px; }
h1, h2, h3 { font-family: var(--display); color: var(--ink); margin: 0; text-wrap: balance; }
h1 { font-size: var(--step-4); line-height: 1.02; font-weight: 800; letter-spacing: -.028em; }
h2 { font-size: var(--step-3); line-height: 1.1; font-weight: 700; letter-spacing: -.018em; }
h3 { font-size: var(--step-1); line-height: 1.25; font-weight: 650; letter-spacing: -.008em; }
p { margin: 0 0 1em; max-width: 68ch; }
ul, ol { margin: 0; padding: 0; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding-inline: var(--gutter); }
.skip { position: absolute; left: -9999px; top: 0; background: var(--ink); color: #fff; padding: .6em 1em; z-index: 10; }
.skip:focus { left: 8px; top: 8px; }

/* buttons and links */
.btn {
  display: inline-block; font: 600 1rem/1 var(--display); color: #fff; background: var(--cyan-deep);
  padding: .95em 1.3em; border-radius: 6px; text-decoration: none; white-space: nowrap;
}
.btn:hover { background: var(--ink); color: #fff; }
.btn-sm { padding: .7em 1em; font-size: .9375rem; }
.btn-light { background: #fff; color: var(--ink); }
.btn-light:hover { background: var(--cyan); color: #fff; }
.link { font: 600 1rem/1.3 var(--display); color: var(--cyan-deep); }

/* header */
.top { background: rgba(238, 243, 246, .94); backdrop-filter: blur(8px); position: sticky; top: 0; z-index: 5; border-bottom: 1px solid var(--rule); }
.top-in { display: flex; align-items: center; gap: 28px; min-height: 68px; }
.brand img { height: 46px; width: auto; }
.nav { display: flex; gap: 24px; margin-left: auto; }
.nav a { font: 500 .9375rem/1 var(--display); color: var(--ink-2); text-decoration: none; }
.nav a:hover { color: var(--ink); text-decoration: underline; }
@media (max-width: 900px) { .nav { display: none; } .top-in .btn { margin-left: auto; } }
@media (max-width: 420px) { .brand img { height: 38px; } .btn-sm { padding: .65em .8em; font-size: .875rem; } }

/* photos with a quiet fallback until MarkAIt images land */
.photo { margin: 0; position: relative; overflow: hidden; border-radius: 4px; background-color: var(--ink);
  background-image: linear-gradient(var(--grid-dark, rgba(255,255,255,.07)) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.07) 1px, transparent 1px);
  background-size: 24px 24px; }
.photo img { width: 100%; height: 100%; object-fit: cover; }
.photo.is-empty::after { content: ""; position: absolute; inset: 0;
  background: radial-gradient(120% 90% at 85% 10%, rgba(14,143,201,.45), transparent 60%); }

/* hero */
.hero { padding-block: clamp(40px, 7vw, 88px) clamp(36px, 5vw, 64px);
  background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 32px 32px; background-position: -1px -1px; }
.hero-in { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(24px, 5vw, 64px); align-items: center; }
.hero h1 { max-width: 11ch; }
.lede { font-size: var(--step-1); line-height: 1.5; color: var(--ink-2); margin-top: 22px; max-width: 34em; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px 26px; align-items: center; margin-top: 30px; }
.hero-photo { aspect-ratio: 1 / 1; max-height: 520px; }
@media (max-width: 820px) { .hero-in { grid-template-columns: 1fr; } .hero-photo { aspect-ratio: 16 / 10; order: 2; } }

/* signature: the 96-block day */
.ribbon { margin-top: clamp(36px, 5vw, 60px); }
.ribbon-grid { display: grid; grid-template-columns: repeat(96, 1fr); gap: 2px; height: 58px; }
.ribbon-grid i { display: block; background: var(--white); border: 1px solid var(--rule); border-radius: 1px; }
.ribbon-grid i.past { background: var(--ink); border-color: var(--ink); opacity: .82; }
.ribbon-grid i.now { background: var(--cyan); border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(14,143,201,.25); }
.ribbon-grid.play i.past { animation: fill .5s both; animation-delay: calc(var(--i) * 9ms); }
@keyframes fill { from { background: var(--white); border-color: var(--rule); opacity: 1; } }
@media (prefers-reduced-motion: reduce) { .ribbon-grid.play i.past { animation: none; } }
.ribbon-ticks { display: flex; justify-content: space-between; font: 500 .8125rem/1 var(--display); color: var(--ink-2); margin-top: 8px; font-variant-numeric: tabular-nums; }
.ribbon-cap { font: 400 var(--step-0)/1.5 var(--display); color: var(--ink-2); margin-top: 14px; max-width: none; }
.ribbon-now { color: var(--ink); font-weight: 600; }
@media (max-width: 640px) {
  .ribbon-grid { grid-template-columns: repeat(24, 1fr); height: auto; }
  .ribbon-grid i { aspect-ratio: 1; }
  .ribbon-ticks span:nth-child(2), .ribbon-ticks span:nth-child(4) { display: none; }
}

/* basis marks: the visual thread of the site */
.basis { display: inline-block; font: 600 .75rem/1.2 var(--display); padding: .25em .55em .25em 1.35em; border-radius: 99px;
  position: relative; vertical-align: .12em; white-space: nowrap; background: var(--white); border: 1px solid var(--rule); color: var(--ink-2); }
.basis::before { content: ""; position: absolute; left: .55em; top: 50%; width: .45em; height: .45em; margin-top: -.225em; border-radius: 50%; background: var(--ink-2); }
.b-obs { color: var(--obs); border-color: rgba(46,125,91,.35); } .b-obs::before { background: var(--obs); }
.b-mod { color: var(--mod); border-color: rgba(183,121,31,.4); } .b-mod::before { background: transparent; border: 1.5px solid var(--mod); }
.b-ship { color: var(--cyan-deep); border-color: rgba(14,143,201,.35); } .b-ship::before { background: var(--cyan); }

/* method */
.method { background: var(--white); border-block: 1px solid var(--rule); padding-block: clamp(48px, 7vw, 88px); }
.principles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; margin-top: 36px; border-top: 2px solid var(--ink); }
.principle { padding: 26px 28px 8px 0; }
.principle + .principle { padding-left: 28px; border-left: 1px solid var(--rule); }
.principle h3 { margin-bottom: 10px; }
.eg { font: 500 .875rem/1.4 var(--display); color: var(--ink-2); }
@media (max-width: 820px) { .principles { grid-template-columns: 1fr; } .principle + .principle { padding-left: 0; border-left: 0; border-top: 1px solid var(--rule); } }

/* product groups */
.group { padding-block: clamp(56px, 8vw, 104px) 0; }
.group + .group { padding-bottom: clamp(56px, 8vw, 104px); }
.group-head { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 24px; align-items: end; padding-bottom: 22px; border-bottom: 2px solid var(--ink); }
.group-head p { margin: 0; color: var(--ink-2); font-size: var(--step-1); line-height: 1.45; }
@media (max-width: 820px) { .group-head { grid-template-columns: 1fr; } }
.rows { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.rows-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.row { padding: 28px 28px 32px 0; border-bottom: 1px solid var(--rule); }
.row:not(.row-lead) + .row:not(.row-lead) { padding-left: 28px; border-left: 1px solid var(--rule); }
.row h3 { font-size: var(--step-2); margin-bottom: 10px; }
.row h3 a { color: var(--ink); text-decoration: none; }
.row h3 a:hover { color: var(--cyan-deep); }
.row-lead { grid-column: 1 / -1; display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(24px, 4vw, 56px); padding: 36px 0 40px; align-items: center; }
.row-photo { aspect-ratio: 16 / 9; }
.row-lead h3 { font-size: var(--step-3); }
.row-title { font: 600 var(--step-1)/1.3 var(--display); color: var(--cyan-deep); }
.row-who { color: var(--ink-2); font-size: var(--step--1); }
@media (max-width: 900px) {
  .rows, .rows-2 { grid-template-columns: 1fr; }
  .row, .row:not(.row-lead) + .row:not(.row-lead) { padding: 24px 0; border-left: 0; }
  .row-lead { grid-template-columns: 1fr; }
}

/* why */
.why { background: var(--paper-2); padding-block: clamp(56px, 8vw, 96px); }
.why-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(20px, 3vw, 40px); margin-top: 32px; }
.why-grid h3 { margin-bottom: 10px; padding-top: 16px; border-top: 3px solid var(--cyan); }
@media (max-width: 820px) { .why-grid { grid-template-columns: 1fr; } }

/* heritage */
.heritage { background: var(--ink); color: #D6E2EC; padding-block: clamp(56px, 8vw, 96px); }
.heritage h2 { color: #fff; margin-bottom: 20px; }
.heritage a { color: #7FD0F2; }
.heritage a:hover { color: #fff; }
.heritage-in { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: clamp(24px, 5vw, 64px); align-items: center; }
.heritage-photo { aspect-ratio: 3 / 2; background-color: #12305A; }
@media (max-width: 820px) { .heritage-in { grid-template-columns: 1fr; } }

/* closer */
.closer { background: var(--cyan-deep); color: #EAF6FC; padding-block: clamp(48px, 7vw, 80px); }
.closer h2 { color: #fff; }
.closer-in { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 10px 40px; align-items: center; }
.closer-in h2 { grid-column: 1; }
.closer-in p { grid-column: 1; margin: 0; font-size: var(--step-1); line-height: 1.45; }
.closer-in .btn { grid-column: 2; grid-row: 1 / span 2; }
@media (max-width: 720px) { .closer-in { grid-template-columns: 1fr; } .closer-in .btn { grid-column: 1; grid-row: auto; justify-self: start; margin-top: 16px; white-space: normal; } }

/* footer */
.foot { background: #081C35; color: #AFC2D3; padding-block: 56px 28px; font-family: var(--display); font-size: .9375rem; }
.foot-in { display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 1fr) minmax(0, 1fr); gap: 32px; }
.foot-brand img { height: 56px; width: auto; margin-bottom: 16px; }
.foot h2 { font-size: .9375rem; color: #fff; margin-bottom: 12px; letter-spacing: 0; }
.foot ul { list-style: none; }
.foot li { margin: 6px 0; }
.foot a { color: #D6E2EC; text-decoration: none; }
.foot a:hover { color: #fff; text-decoration: underline; }
.foot-legal { border-top: 1px solid rgba(255,255,255,.12); margin-top: 40px; padding-top: 20px; }
.foot-legal p { font-size: .8125rem; margin: 0; max-width: none; }
@media (max-width: 720px) { .foot-in { grid-template-columns: 1fr 1fr; } .foot-brand { grid-column: 1 / -1; } }

/* product pages */
.p-hero { padding-block: clamp(36px, 6vw, 72px);
  background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 32px 32px; }
.p-hero-in { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(24px, 5vw, 64px); align-items: center; }
.crumb { font: 500 .9375rem/1 var(--display); margin-bottom: 18px; }
.p-name { font: 700 var(--step-1)/1 var(--display); color: var(--cyan-deep); margin-bottom: 12px; }
.p-hero h1 { font-size: clamp(2.2rem, 1.5rem + 2.8vw, 3.7rem); max-width: 16ch; }
.p-hero .lede { margin-bottom: 28px; }
.p-photo { aspect-ratio: 1 / 1; max-height: 480px; }
@media (max-width: 820px) { .p-hero-in { grid-template-columns: 1fr; } .p-photo { aspect-ratio: 16 / 10; } }
.p-media { padding-bottom: clamp(24px, 4vw, 48px); }
.shot { margin: 0; }
.shot img { border-radius: 6px; border: 1px solid var(--rule); box-shadow: 0 18px 40px -24px rgba(11,37,69,.45); background: var(--ink); }
.shot figcaption { font: 400 .875rem/1.45 var(--display); color: var(--ink-2); margin-top: 12px; max-width: 80ch; }
.p-benefits { padding-block: clamp(24px, 4vw, 48px) clamp(48px, 6vw, 80px); }
.p-benefits .why-grid { margin-top: 0; }
.p-detail { background: var(--white); border-block: 1px solid var(--rule); padding-block: clamp(48px, 7vw, 80px); }
.p-detail-in { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 4fr); gap: clamp(28px, 5vw, 72px); }
.p-detail h2 { font-size: var(--step-2); margin-bottom: 18px; }
.facts, .who { list-style: none; }
.facts li { padding: 12px 0; border-top: 1px solid var(--rule); }
.facts .basis { margin-left: .35em; }
.who li { padding: 10px 0; border-top: 1px solid var(--rule); font-family: var(--display); font-weight: 500; }
.note { font-size: .9375rem; color: var(--ink-2); margin-top: 22px; padding-left: 14px; border-left: 3px solid var(--cyan); }
@media (max-width: 820px) { .p-detail-in { grid-template-columns: 1fr; } }
.p-steps { padding-block: clamp(48px, 7vw, 80px); }
.p-steps h2 { font-size: var(--step-2); }
.steps { list-style: none; counter-reset: s; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 24px; margin-top: 28px; }
.steps li { counter-increment: s; padding-top: 16px; border-top: 2px solid var(--ink); }
.steps li::before { content: counter(s); font: 700 var(--step-2)/1 var(--display); color: var(--cyan-deep); display: block; margin-bottom: 10px; font-variant-numeric: tabular-nums; }
.steps h3 { margin-bottom: 6px; }
.steps p { color: var(--ink-2); }
.others { padding-block: 40px 56px; }
.others h2 { font-size: var(--step-1); margin-bottom: 14px; }
.others ul { list-style: none; display: flex; flex-wrap: wrap; gap: 10px 26px; }
.others a { font: 600 1rem/1.4 var(--display); }