/* Cybervelnix — Swiss grid, attribute-driven styling */
:root {
  --paper: #F4F3EF;
  --ink: #141414;
  --ink-2: #4a4a47;
  --rule: #d6d4cc;
  --cobalt: #2F4BFF;
  --cobalt-deep: #1f35d6;
  --lime: #C6F432;
  --sans: "Sora", system-ui, sans-serif;
  --serif: "Source Serif 4", Georgia, serif;
  --gutter: clamp(16px, 4vw, 48px);
  --max: 1200px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 1.125rem/1.65 var(--serif);
  text-rendering: optimizeLegibility;
}
h1, h2, h3 { font-family: var(--sans); line-height: 1.12; letter-spacing: -0.02em; margin: 0 0 .5em; }
h1 { font-size: clamp(2.2rem, 5.4vw, 4.4rem); font-weight: 800; }
h2 { font-size: clamp(1.5rem, 2.6vw, 2.1rem); font-weight: 700; }
h3 { font-size: 1.15rem; font-weight: 600; }
p, ul, ol { margin: 0 0 1.1em; }
a { color: var(--cobalt); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { color: var(--cobalt-deep); text-decoration-thickness: 2px; }
mark { background: linear-gradient(transparent 62%, var(--lime) 62%); color: inherit; padding: 0 .05em; }
:focus-visible { outline: 3px solid var(--cobalt); outline-offset: 3px; }

[data-ui="skip"] { position: absolute; left: -9999px; top: 0; background: var(--ink); color: var(--paper); padding: 8px 14px; z-index: 10; }
[data-ui="skip"]:focus { left: 16px; top: 16px; }

/* grid primitives */
[data-grid="wrap"] { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }

/* masthead */
[data-block="masthead"] { border-bottom: 1px solid var(--ink); }
[data-block="masthead"] [data-grid="wrap"] { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 68px; flex-wrap: wrap; }
[data-ui="wordmark"] { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font: 700 1.05rem var(--sans); letter-spacing: -0.01em; }
[data-block="masthead"] nav { display: flex; gap: clamp(14px, 3vw, 32px); font: 400 .85rem var(--sans); }
[data-block="masthead"] nav a { color: var(--ink); text-decoration: none; padding: 4px 0; border-bottom: 1px solid transparent; }
[data-block="masthead"] nav a:hover, [data-block="masthead"] nav a[aria-current] { border-color: var(--cobalt); color: var(--cobalt); }

/* type utilities */
[data-ui="label"] {
  display: inline-block; margin: 0 0 clamp(28px, 5vw, 56px);
  font: 600 .7rem/1 var(--sans); letter-spacing: .18em; text-transform: uppercase;
  border: 1px solid var(--ink); padding: 7px 10px;
}
[data-ui="kicker"] { font: 600 .75rem/1.4 var(--sans); letter-spacing: .14em; text-transform: uppercase; color: var(--cobalt); margin-bottom: 1.2em; }
[data-ui="lede"] { font-size: clamp(1.15rem, 1.6vw, 1.35rem); color: var(--ink-2); max-width: 36em; }
[data-ui="byline"], [data-ui="meta"] { font: 400 .8rem var(--sans); color: var(--ink-2); }
[data-ui="numeral"] { font: 800 clamp(3.2rem, 7vw, 5.5rem)/0.9 var(--sans); letter-spacing: -0.05em; color: var(--ink); display: block; margin: 0 0 .25em; }
[data-ui="section-title"] { font-size: clamp(1.25rem, 2vw, 1.6rem); font-weight: 600; padding-top: 18px; border-top: 1px solid var(--ink); margin-bottom: clamp(32px, 5vw, 56px); max-width: 28em; }
[data-ui="note"] { font: 400 .8rem/1.5 var(--sans); color: var(--ink-2); margin-top: 28px; }

/* button */
[data-ui="button"] {
  display: inline-flex; align-items: center; gap: .6em;
  font: 600 .95rem/1 var(--sans); letter-spacing: -0.005em;
  padding: 18px 26px; border: 1px solid var(--cobalt); border-radius: 0;
  background: var(--cobalt); color: #fff; text-decoration: none; cursor: pointer;
  transition: background .15s, transform .15s;
}
[data-ui="button"]:hover { background: var(--ink); border-color: var(--ink); color: #fff; transform: translateY(-1px); }
[data-ui="button"][data-variant="lime"] { background: var(--lime); border-color: var(--lime); color: var(--ink); }
[data-ui="button"][data-variant="lime"]:hover { background: var(--paper); border-color: var(--paper); color: var(--ink); }

/* hero */
[data-block="hero"] { padding: clamp(32px, 6vw, 72px) 0 clamp(56px, 8vw, 112px); }
[data-grid="hero"] { display: grid; grid-template-columns: 1fr; gap: 48px; align-items: end; }
[data-block="hero"] h1 { max-width: 12em; }
[data-block="hero"] [data-ui="byline"] { margin: 28px 0; padding-top: 14px; border-top: 1px solid var(--rule); max-width: 36em; }
[data-part="art"] { margin: 0; border: 1px solid var(--ink); aspect-ratio: 1; max-width: 420px; width: 100%; justify-self: end; }
[data-part="art"] svg { display: block; width: 100%; height: 100%; }
@media (min-width: 900px) {
  [data-grid="hero"] { grid-template-columns: 7fr 5fr; gap: 64px; }
}

/* timeline */
[data-block="timeline"] { padding: clamp(48px, 7vw, 96px) 0; background: #fff; border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink); }
[data-part="steps"] { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr; position: relative; }
[data-part="steps"] li { position: relative; padding: 28px 0 28px 0; border-top: 1px solid var(--rule); }
[data-part="steps"] li:first-child { border-top: 0; padding-top: 0; }
[data-part="steps"] [data-ui="numeral"] { color: var(--cobalt); }
[data-part="steps"] li:last-child [data-ui="numeral"] { color: var(--ink); }
[data-part="steps"] li:last-child [data-ui="numeral"]::after { content: ""; display: inline-block; width: .22em; height: .22em; background: var(--lime); margin-left: .08em; }
[data-part="steps"] p { font-size: 1rem; color: var(--ink-2); max-width: 30em; margin: 0; }
@media (min-width: 820px) {
  [data-part="steps"] { grid-template-columns: repeat(3, 1fr); }
  [data-part="steps"]::before { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 1px; background: var(--ink); }
  [data-part="steps"] li, [data-part="steps"] li:first-child { border-top: 0; padding: 36px 32px 0 0; }
  [data-part="steps"] li + li { padding-left: 32px; border-left: 1px solid var(--rule); }
  [data-part="steps"] li::before { content: ""; position: absolute; top: -6px; width: 11px; height: 11px; background: var(--cobalt); }
  [data-part="steps"] li + li::before { left: 32px; }
  [data-part="steps"] li:last-child::before { background: var(--lime); outline: 1px solid var(--ink); }
}

/* article */
[data-block="article"] { padding: clamp(56px, 8vw, 112px) 0; }
[data-grid="prose"] { display: grid; grid-template-columns: 1fr; gap: 40px; }
[data-part="rail"] { font: 400 .85rem/1.5 var(--sans); }
[data-part="rail"] ul { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--ink); }
[data-part="rail"] li { padding: 10px 0; border-bottom: 1px solid var(--rule); }
[data-part="rail"] a { color: var(--ink); text-decoration: none; }
[data-part="rail"] a:hover { color: var(--cobalt); }
[data-part="body"] { max-width: 40em; }
[data-part="body"] h2 { margin-top: 2em; }
[data-part="body"] h2:first-child { margin-top: 0; }
[data-part="body"] ul, [data-part="body"] ol { padding-left: 1.2em; }
[data-part="body"] li { margin-bottom: .6em; }
[data-part="body"] li::marker { color: var(--cobalt); font-family: var(--sans); font-weight: 600; }
[data-part="body"] h2 { scroll-margin-top: 24px; }
@media (min-width: 960px) {
  [data-grid="prose"] { grid-template-columns: 3fr 9fr; gap: 64px; }
  [data-part="rail"] { position: sticky; top: 32px; align-self: start; }
}

[data-block="pullquote"] { margin: 2.4em 0; padding: 28px 0 28px 24px; border-left: 4px solid var(--cobalt); }
[data-block="pullquote"] blockquote { margin: 0; font: 600 clamp(1.25rem, 2.2vw, 1.6rem)/1.3 var(--sans); letter-spacing: -0.015em; }

[data-ui="inline-cta"] { margin-top: 2.4em; padding: 28px; border: 1px solid var(--ink); display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 18px; background: #fff; }
[data-ui="inline-cta"] p { margin: 0; font: 600 1.05rem var(--sans); }

/* compare */
[data-block="compare"] { padding: clamp(56px, 8vw, 112px) 0; border-top: 1px solid var(--ink); }
[data-grid="split"] { display: grid; grid-template-columns: 1fr; gap: 0; border-top: 1px solid var(--ink); }
[data-part="col"] { padding: 32px 0; }
[data-part="col"] h3 { display: flex; align-items: baseline; gap: 14px; font-size: 1.3rem; margin-bottom: 1em; }
[data-part="col"] h3 [data-ui="numeral"] { font-size: 2.6rem; margin: 0; }
[data-part="col"] ul { list-style: none; padding: 0; margin: 0; }
[data-part="col"] li { padding: 14px 0 14px 28px; border-bottom: 1px solid var(--rule); position: relative; font-size: 1rem; }
[data-part="col"] li::before { content: ""; position: absolute; left: 0; top: 1.35em; width: 12px; height: 1px; background: var(--ink-2); }
[data-tone="with"] h3 [data-ui="numeral"] { color: var(--cobalt); }
[data-tone="with"] li::before { width: 10px; height: 10px; top: 1.15em; background: var(--cobalt); }
[data-tone="without"] { color: var(--ink-2); }
[data-tone="without"] h3 { color: var(--ink); }
@media (min-width: 820px) {
  [data-grid="split"] { grid-template-columns: 1fr 1fr; }
  [data-part="col"] { padding: 40px 40px 0 0; }
  [data-part="col"] + [data-part="col"] { padding: 40px 0 0 40px; border-left: 1px solid var(--ink); }
}

/* final cta */
[data-block="cta"] { background: var(--cobalt); color: #fff; padding: clamp(64px, 9vw, 128px) 0; }
[data-block="cta"] [data-ui="numeral"] { color: var(--lime); font-size: clamp(3.5rem, 10vw, 8rem); margin-bottom: .3em; }
[data-block="cta"] h2 { font-size: clamp(2rem, 4.6vw, 3.6rem); font-weight: 800; max-width: 14em; }
[data-block="cta"] p:not([data-ui]) { max-width: 34em; font-size: 1.15rem; opacity: .92; margin-bottom: 2em; }

/* disclosure */
[data-block="disclosure"] { padding: 48px 0; border-bottom: 1px solid var(--ink); }
[data-block="disclosure"] h2 { font-size: .8rem; letter-spacing: .14em; text-transform: uppercase; font-weight: 600; }
[data-block="disclosure"] p { font-size: .95rem; color: var(--ink-2); max-width: 52em; margin: 0; }

/* plain pages */
[data-block="plain"] { max-width: 760px; margin: 0 auto; padding: clamp(48px, 8vw, 104px) var(--gutter); }
[data-block="plain"] h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
[data-block="plain"] h2 { font-size: 1.3rem; margin-top: 2em; padding-top: 14px; border-top: 1px solid var(--rule); }
[data-block="plain"] ul { padding-left: 1.2em; }
[data-block="plain"] > [data-ui="numeral"] { color: var(--cobalt); font-size: clamp(5rem, 16vw, 10rem); }

/* form */
[data-ui="form"] { display: grid; gap: 22px; margin-top: 36px; }
[data-ui="field"] { display: grid; gap: 8px; }
[data-ui="field"] span { font: 600 .8rem var(--sans); letter-spacing: .06em; text-transform: uppercase; }
[data-ui="field"] input, [data-ui="field"] textarea {
  font: 400 1rem/1.5 var(--serif); color: var(--ink); background: #fff;
  border: 1px solid var(--ink); border-radius: 0; padding: 14px 16px; width: 100%;
}
[data-ui="field"] input:focus, [data-ui="field"] textarea:focus { outline: 2px solid var(--cobalt); outline-offset: 0; border-color: var(--cobalt); }
[data-ui="form"] [data-ui="button"] { justify-self: start; }
[data-ui="trap"] { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
[data-ui="notice"] { padding: 18px 20px; border: 1px solid var(--ink); background: #fff; font-size: 1rem; }
[data-ui="notice"] ul { margin: 0; padding-left: 1.1em; }
[data-ui="notice"][data-tone="ok"] { border-left: 6px solid var(--lime); }
[data-ui="notice"][data-tone="error"] { border-left: 6px solid var(--cobalt); }

/* footer */
[data-block="footer"] { padding: 56px 0 40px; font: 400 .85rem/1.6 var(--sans); }
[data-block="footer"] [data-grid="wrap"] { display: grid; grid-template-columns: 1fr; gap: 28px; }
[data-block="footer"] strong { font-size: 1.05rem; }
[data-block="footer"] [data-part="brand"] p { margin: .5em 0 0; color: var(--ink-2); max-width: 30em; }
[data-part="links"] { display: flex; flex-wrap: wrap; gap: 10px 24px; align-content: start; }
[data-part="links"] a { color: var(--ink); text-decoration: none; border-bottom: 1px solid var(--rule); }
[data-part="links"] a:hover { color: var(--cobalt); border-color: var(--cobalt); }
[data-part="legal"] { grid-column: 1 / -1; margin: 0; padding-top: 20px; border-top: 1px solid var(--ink); color: var(--ink-2); font-size: .78rem; }
@media (min-width: 820px) {
  [data-block="footer"] [data-grid="wrap"] { grid-template-columns: 1fr 1fr; }
  [data-part="links"] { justify-content: flex-end; }
}