/* ==========================================================================
   TimeLine Systems — site.css
   Selawik is SIL OFL 1.1, shipped unmodified — see assets/fonts/LICENSE.txt
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Fonts
   -------------------------------------------------------------------------- */

@font-face {
  font-family: "Selawik";
  src: url("../fonts/selawkl.woff2") format("woff2");
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Selawik";
  src: url("../fonts/selawk.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Selawik";
  src: url("../fonts/selawksb.woff2") format("woff2");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

/* --------------------------------------------------------------------------
   2. Tokens
   -------------------------------------------------------------------------- */

:root {
  color-scheme: dark;

  /* -- surfaces -- */
  --bg: #12294f;

  --bg-deep: #0c1d3d;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-2: rgba(255, 255, 255, 0.06);

  --hairline: rgba(255, 255, 255, 0.14);


  --control-line: rgba(255, 255, 255, 0.56);

  /* -- ink -- */
  --text: #ffffff;

  --text-dim: rgba(255, 255, 255, 0.726);


  --text-faint: rgba(255, 255, 255, 0.56);


  /* -- pillar accents -- */

  /* -- pillar fills -- */
  --services-bright: #f7d247;
  --security-bright: #5eccfa;
  --hosting-bright: #90d345;


  --kontakt: #ff9a4d;
  --kontakt-bright: #ff9a4d;


  --brand: #004993;


  --brand-ink: #47a3ff;
  --services: #f7d247;
  --security: #5eccfa;
  --hosting: #90d345;

  /* -- Ampelsystem -- */
  --ok: #4ade80;
  --warn: #f7d247;
  --bad: #ff7a7a;

  /* -- generative mesh (read by JS) -- */
  --mesh-line: rgba(255, 255, 255, 0.1);

  --mesh-dot: rgba(255, 255, 255, 0.34);

  /* -- the spine's live colour, driven by JS per active section -- */
  --spine: var(--text-faint);

  --spine-glow: 10px;

  /* -- metrics -- */

  --wrap: max(min(100%, 82rem), min(100% - 7rem, 120rem));
  --pad-x: clamp(1.25rem, 3vw, 3.25rem);

  --rail: 11rem;
  --rail-gap: clamp(1.25rem, 3vw, 2.5rem);


  --page-edge: max(0px, (100% - var(--wrap)) / 2);
  --content-edge: calc(var(--page-edge) + var(--pad-x));

  --spine-lead: min((var(--page-edge) + var(--pad-x)) / 2, 3.5rem);


  --band-w: calc(3.2 * (var(--pad-x) + var(--rail) + var(--rail-gap)));
  --band-h: clamp(20rem, 56vw, 50rem);
  --band-in: 28%;
  --band-out: 78%;
  --band-fade: 55%;
  --band-left: 0.22;
  --band-right: 0.22;

  --band-about: 0.18;


  --rhythm: 1.6;                  
  --rhythm-flow: 1.5;             
  --rhythm-text: 1;               
  --rail-pad: calc(clamp(1.5rem, 3vw, 2.25rem) * var(--rhythm));
  --rail-row-gap: calc(clamp(1.75rem, 3vw, 2.5rem) * var(--rhythm));   
  --gap-sibling: calc(clamp(2rem, 4vw, 3rem) * var(--rhythm));          
  --gap-head: calc(clamp(2.5rem, 5vw, 3.5rem) * var(--rhythm));         
  --gap-block: calc(clamp(2.5rem, 5vw, 4.5rem) * var(--rhythm));        


  --measure: 58ch;

  --flow-tight: clamp(2.5rem, 5vw, 4.5rem);   
  --flow: calc(clamp(6rem, 12.5vw, 11rem) * var(--rhythm-flow));         
  --flow-loose: calc(clamp(8rem, 16vw, 14rem) * var(--rhythm-flow));
  --section-y: var(--flow-tight);
  --radius: 14px;
  --radius-lg: 20px;

  /* -- type -- */
  --font: "Segoe UI", "Selawik", system-ui, -apple-system, sans-serif;
  --font-mono: ui-monospace, "Cascadia Mono", Consolas, "SF Mono",
               "DejaVu Sans Mono", monospace;

  --fs-display: clamp(2.6rem, 1.2rem + 6.4vw, 6.5rem);

  --fs-title: clamp(1.25rem, 1rem + 0.9vw, 1.75rem);
  --fs-body: clamp(1rem, 0.96rem + 0.2vw, 1.0625rem);

  --fs-key: clamp(1.125rem, 1.02rem + 0.55vw, 1.375rem);
  --track-display: 0.01em;
  --track-label: 0.08em;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);

  /* -- elevation -- */
  --elev-0: 0 0 0 1px transparent, inset 0 1px 0 0 transparent, 0 0 0 0 transparent;


  --elev-1: 0 0 0 1px rgba(255, 255, 255, 0.09),
            inset 0 1px 0 0 rgba(255, 255, 255, 0.16),
            0 6px 16px -6px rgba(0, 0, 0, 0.30);


  --elev-2: 0 0 0 1px rgba(255, 255, 255, 0.13),
            inset 0 1px 0 0 rgba(255, 255, 255, 0.21),
            0 14px 30px -12px rgba(0, 0, 0, 0.40);
}


[data-accent="services"] { --accent: var(--services); --accent-bright: var(--services-bright); --on-accent: #04070e; }
[data-accent="security"] { --accent: var(--security); --accent-bright: var(--security-bright); --on-accent: #04070e; }
[data-accent="hosting"]  { --accent: var(--hosting);  --accent-bright: var(--hosting-bright); --on-accent: #04070e; }
[data-accent="kontakt"]  { --accent: var(--kontakt);  --accent-bright: var(--kontakt-bright); --on-accent: #04070e; }

[data-accent="neutral"] {
  --accent: var(--text-dim);

  --accent-bright: #ffffff;
  --on-accent: #04070e;
}

/* --------------------------------------------------------------------------
   THE FROSTED PANEL
   -------------------------------------------------------------------------- */
.plate {
  --surface:   rgba(255, 255, 255, 0.05);
  --surface-2: rgba(255, 255, 255, 0.085);

  --hairline:  rgba(255, 255, 255, 0.12);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}

.plate:not(.level) { box-shadow: 0 18px 44px -24px rgba(0, 0, 0, 0.55); }


.logo { height: clamp(2rem, 1.7rem + 1.2vw, 2.6rem); width: auto; }
.logo--light { display: none; }
.logo--dark { display: block; }

/* --------------------------------------------------------------------------
   3. Reset & base
   -------------------------------------------------------------------------- */

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 6rem;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-weight: 400;
  font-size: var(--fs-body);
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}


body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(calc(max(0px, min(3.5rem, 50vw - 41rem), 50vw - 60rem)
                         + var(--pad-x) + var(--rail) + var(--rail-gap)) 62% at 0% 38%,
      rgba(47, 91, 160, 0.62), transparent 100%),
    radial-gradient(72% 56% at 100% 94%, rgba(12, 29, 61, 0.34), transparent 62%);
}


@media (max-width: 53.75rem) {
  body::before {
    background:
      radial-gradient(var(--pad-x) 62% at 0% 38%, rgba(47, 91, 160, 0.62), transparent 100%),
      radial-gradient(72% 56% at 100% 94%, rgba(12, 29, 61, 0.34), transparent 62%);
  }
}


img, svg, canvas { display: block; max-width: 100%; }
img { height: auto; }


a { color: inherit; text-underline-offset: 3px; text-decoration-thickness: 1px; }

:where(a, button, input, textarea, select, summary, [tabindex]):focus-visible {
  outline: 2px solid var(--accent, var(--text));
  outline-offset: 3px;
  border-radius: 3px;
}

::selection { background: var(--accent-bright, var(--services-bright)); color: var(--on-accent, #04070e); }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  padding: 0.75rem 1.25rem;
  background: var(--bg-deep);
  color: var(--text);
  border: 1px solid var(--hairline);
}
.skip-link:focus { left: 1rem; top: 1rem; }

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.visually-hidden > * { max-width: 100%; }

/* --------------------------------------------------------------------------
   4. Typography
   -------------------------------------------------------------------------- */

h1, h2, h3, h4 {
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.01em;
  margin: 0;
  text-wrap: balance;
}

.display {
  font-size: var(--fs-display);
  line-height: 0.98;
}
.display strong {
  display: block;
  font-weight: inherit;
  color: var(--accent, var(--text));
}

.display--lit strong {
  display: inline;
  text-shadow: 0 0 0.16em color-mix(in srgb, var(--accent) 26%, transparent);
}


.hero .display,
.hero .display strong { font-weight: 300; }

.hero .display strong { color: #5eccfa; color: var(--security); }
.hero .display { text-transform: uppercase; letter-spacing: var(--track-display); }


[data-accent="neutral"] .section__head .display strong {
  color: #1a8bff;
  color: var(--brand-ink);
}

.h2 {
  font-size: clamp(2rem, 1.1rem + 3.6vw, 3.4rem);
  text-transform: none;
}
.h3 {
  font-size: var(--fs-title);
  font-weight: 600;
  letter-spacing: -0.005em;
  text-transform: none;
  line-height: 1.25;
}

.h3:not(:last-child) { margin-bottom: calc(0.75rem * var(--rhythm-text)); }


.label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: var(--track-label);
  text-transform: uppercase;
  color: var(--accent, var(--text-dim));
  margin: 0;
}


.lead {
  font-size: clamp(1.05rem, 1rem + 0.45vw, 1.3rem);
  line-height: 1.55;
  color: var(--text);
  text-wrap: pretty;
}


.footnote {
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--text-faint);
}

p { margin: 0 0 calc(1rem * var(--rhythm-text)); text-wrap: pretty; color: var(--text-dim); }   
p:last-child { margin-bottom: 0; }

/* --------------------------------------------------------------------------
   5. Layout shell
   -------------------------------------------------------------------------- */

.shell { position: relative; }

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--pad-x);
}

.section {
  position: relative;
  padding-block: var(--flow) 0;
}
.section:last-of-type { padding-block-end: var(--flow); }
.section--tight { padding-block-start: var(--flow-tight); }
.section--loose { padding-block-start: var(--flow-loose); }


.section__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;

  -webkit-mask-image: linear-gradient(180deg, transparent 0, transparent var(--flow), #000 calc(var(--flow) * 1.9), #000 55%, transparent 82%);
  mask-image: linear-gradient(180deg, transparent 0, transparent var(--flow), #000 calc(var(--flow) * 1.9), #000 55%, transparent 82%);
}

.section--loose .section__bg {
  --bgflow: var(--flow-loose);
  -webkit-mask-image: linear-gradient(180deg, transparent 0, transparent var(--flow-loose), #000 calc(var(--flow-loose) * 1.9), #000 55%, transparent 82%);
  mask-image: linear-gradient(180deg, transparent 0, transparent var(--flow-loose), #000 calc(var(--flow-loose) * 1.9), #000 55%, transparent 82%);
}

.section__bg::before,
.section__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
}

.section__bg--services::before { background-image: url("/assets/img/bg-services.jpg?v=4"); }
.section__bg--security::before { background-image: url("/assets/img/bg-security.jpg?v=3"); }
.section__bg--about::before    { background-image: url("/assets/img/bg-about.jpg?v=3"); }
.section__bg--kontakt::before  { background-image: url("/assets/img/bg-kontakt.jpg"); }
.section__bg--hosting::before  { background-image: url("/assets/img/bg-hosting.jpg"); }


/* --------------------------------------------------------------------------
   THE BAND
   -------------------------------------------------------------------------- */
@media not all and (max-width: 53.75rem) {
  .section__bg::before {
    top: var(--bgflow, var(--flow));
    bottom: auto;

    height: min(100%, var(--band-h));
    width: var(--band-w);
    background-size: cover;

    mask-image:
      linear-gradient(180deg, #000 var(--band-fade), transparent 100%),
      linear-gradient(90deg,
        rgba(0, 0, 0, 0)    0,
        rgba(0, 0, 0, 0.10) calc(var(--band-in) * 0.2),
        rgba(0, 0, 0, 0.35) calc(var(--band-in) * 0.4),
        rgba(0, 0, 0, 0.65) calc(var(--band-in) * 0.6),
        rgba(0, 0, 0, 0.90) calc(var(--band-in) * 0.8),
        rgb(0, 0, 0)        var(--band-in),
        rgb(0, 0, 0)        var(--band-out),
        rgba(0, 0, 0, 0.90) calc(var(--band-out) + (100% - var(--band-out)) * 0.2),
        rgba(0, 0, 0, 0.65) calc(var(--band-out) + (100% - var(--band-out)) * 0.4),
        rgba(0, 0, 0, 0.35) calc(var(--band-out) + (100% - var(--band-out)) * 0.6),
        rgba(0, 0, 0, 0.10) calc(var(--band-out) + (100% - var(--band-out)) * 0.8),
        rgba(0, 0, 0, 0)    100%);
  }
  @supports (mask-composite: intersect) {
    .section__bg::before { mask-composite: intersect; }
  }


  .section__bg--security::before,
  .section__bg--about::before {
    left: var(--page-edge);
    right: auto;
  }

  .section__bg--services::before,
  .section__bg--hosting::before,
  .section__bg--kontakt::before {
    left: auto;
    right: var(--content-edge);
    mask-image:
      linear-gradient(180deg, #000 var(--band-fade), transparent 100%),
      linear-gradient(270deg,
        rgba(0, 0, 0, 0)    0,
        rgba(0, 0, 0, 0.10) calc(var(--band-in) * 0.2),
        rgba(0, 0, 0, 0.35) calc(var(--band-in) * 0.4),
        rgba(0, 0, 0, 0.65) calc(var(--band-in) * 0.6),
        rgba(0, 0, 0, 0.90) calc(var(--band-in) * 0.8),
        rgb(0, 0, 0)        var(--band-in),
        rgb(0, 0, 0)        var(--band-out),
        rgba(0, 0, 0, 0.90) calc(var(--band-out) + (100% - var(--band-out)) * 0.2),
        rgba(0, 0, 0, 0.65) calc(var(--band-out) + (100% - var(--band-out)) * 0.4),
        rgba(0, 0, 0, 0.35) calc(var(--band-out) + (100% - var(--band-out)) * 0.6),
        rgba(0, 0, 0, 0.10) calc(var(--band-out) + (100% - var(--band-out)) * 0.8),
        rgba(0, 0, 0, 0)    100%);
  }


  .section__bg--services::before {
    --band-zoom: 1.3;
    background-position: 100% center;
    background-size: auto calc(var(--band-zoom) * 100%);
  }

  .section__bg--security::before { background-position: 0% center; }
  .section__bg--hosting::before  { background-position: 70% center; }
  .section__bg--about::before    { background-position: 70% center; }
  .section__bg--kontakt::before  { background-position: 80% center; }


  .section__bg--security::before { opacity: var(--band-left); }
  .section__bg--about::before    { opacity: var(--band-about); }
  .section__bg--services::before,
  .section__bg--hosting::before,
  .section__bg--kontakt::before  { opacity: var(--band-right); }
}


@media (max-width: 53.75rem) {
  :is(.section__bg, .section--loose .section__bg) {
    --bg-keyend: calc(var(--rail-pad) + 1.4rem);
    -webkit-mask-image: linear-gradient(180deg, transparent 0, transparent var(--bgflow, var(--flow)), #000 calc(var(--bgflow, var(--flow)) * 1.5), #000 100%);
    mask-image: linear-gradient(180deg, transparent 0, transparent var(--bgflow, var(--flow)), #000 calc(var(--bgflow, var(--flow)) * 1.5), #000 100%);
  }

  .section__bg::before,
  .section__bg::after {
    top: var(--bgflow, var(--flow));
    bottom: auto;
    height: min(100%, calc(var(--bg-keyend) + 24rem));
  }

  .section__bg::before {
    background-size: cover;
    -webkit-mask-image: linear-gradient(180deg, #000 calc(var(--bg-keyend) + 13rem), transparent calc(var(--bg-keyend) + 22rem));
    mask-image: linear-gradient(180deg, #000 calc(var(--bg-keyend) + 13rem), transparent calc(var(--bg-keyend) + 22rem));
  }
  .section__bg--services::before { background-position: 100% 0; }  
  .section__bg--security::before { background-position: 23% 0; }   
  .section__bg--hosting::before  { background-position: 70% 0; }
  .section__bg--about::before    { background-position: 70% 0; }   
  .section__bg--kontakt::before  { background-position: 100% 0; }  

  .section__bg::after {
    background: linear-gradient(90deg,
      rgba(18, 41, 79, 1) 0%,
      rgba(18, 41, 79, 0.965) 40%,
      rgba(18, 41, 79, 0.955) 100%);
  }
}

.block { margin-top: var(--gap-block); }


.section__head {
  border-top: 1px solid var(--hairline);
  padding-block: var(--rail-pad) 0;
  margin-bottom: 0;
}
.section__head .rail__key { color: var(--accent); }

/* --------------------------------------------------------------------------
   5b. The label rail — the datasheet grid
   -------------------------------------------------------------------------- */


.rail {
  display: grid;
  grid-template-columns: var(--rail) minmax(0, 1fr);
  column-gap: var(--rail-gap);
}


.rail--head {
  grid-template-columns: var(--rail) minmax(0, 1.15fr) minmax(0, 0.85fr);
}


.section__head.rail--head {
  grid-template-columns: minmax(0, 1fr);
  padding-inline-start: calc(var(--rail) + var(--rail-gap));
}

.section__head.rail--head > .rail__key {
  grid-column: 1;
  padding-block-start: 0;
  margin-block-end: 0.5em;
}
.section__head.rail--head > .rail__body--title { grid-column: 1; }
.section__head.rail--head > .rail__body--lead { grid-column: 1; margin-top: 1.25rem; }

.section__head .lead { color: var(--text-dim); max-width: var(--measure); }

.rail__key {
  font-family: var(--font-mono);
  font-size: var(--fs-key);
  font-weight: 600;

  letter-spacing: 0.01em;
  text-transform: uppercase;

  line-height: 1.25;
  color: var(--text-dim);
  margin: 0;
  padding-block-start: 0.35em;   

  overflow-wrap: break-word;
}


h3.rail__key,
h4.rail__key {
  color: var(--text);

  padding-block-start: 0.2em;
}

.rail__key--accent { color: var(--accent); }

.rail__body { min-width: 0; }


.rails {
  display: grid;
  row-gap: var(--rail-row-gap);
}


.rail-indent { padding-inline-start: calc(var(--rail) + var(--rail-gap)); }


.rail + .rail-indent,
.rails + .rail-indent,
.specs + .rail-indent,
.rail-indent + .rail-indent,
.rail + .rails,
.rails + .rails,
.rail-indent + .rails,
.rail + .specs,
.rails + .specs,
.rail-indent + .specs { margin-top: var(--gap-sibling); }


.rails > :is(.rail, .rails, .rail-indent, .specs)
      + :is(.rail, .rails, .rail-indent, .specs) {
  margin-top: 0;
}


.rail.section__head + * { margin-top: var(--gap-head); }


.ticks.ticks--cols {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: clamp(1.5rem, 4vw, 3rem);
}
.ticks.ticks--cols > li { max-width: var(--measure); }


.rail__body > p,
.rail__body > .lead,
.rail__body > .ticks:not(.ticks--cols),
.rail-indent > p,
.rail-indent > .lead,

.panel__part > p { max-width: var(--measure); }


.rail__body > p { margin-bottom: 0; }
.rail__body > p + p { margin-top: calc(1rem * var(--rhythm-text)); }
.rail__body > p + .ticks,
.rail__body > p + .ampel { margin-top: calc(0.6rem * var(--rhythm-text)); }


.rail__body > .callout,
.rail-indent > .callout {
  max-width: var(--measure);
  margin-block: 0;
  padding: clamp(0.95rem, 2vw, 1.3rem) clamp(1.1rem, 2.2vw, 1.5rem);
  border-inline-start: 2px solid var(--accent, var(--text-dim));
  background: var(--surface);
  color: var(--text);
}


@media (max-width: 68.75rem) {
  .rail--head { grid-template-columns: var(--rail) minmax(0, 1fr); }
  .rail--head > .rail__body--lead { grid-column: 2; margin-top: 1rem; }
}


@media (max-width: 53.75rem) {
  .rail,
  .rail--head,
  .section__head.rail--head { grid-template-columns: 1fr; row-gap: 0.75rem; }
  .rail--head > .rail__body--lead,
  .section__head.rail--head > .rail__body--lead { grid-column: auto; margin-top: 0; }

  .section__head.rail--head { padding-inline-start: 0; }
  .section__head.rail--head > .rail__key { margin-block-end: 0; }
  .rail-indent { padding-inline-start: 0; }
  .ticks.ticks--cols { grid-template-columns: 1fr; }
}

/* --------------------------------------------------------------------------
   6. The spine — the signature element
   -------------------------------------------------------------------------- */


.spine {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;

  --spine-gap: var(--page-edge);
  transition: opacity 0.45s var(--ease);
}
.spine.is-asleep { opacity: 0; }

.spine__svg {
  position: absolute;
  top: 0;
  left: calc(var(--spine-gap) + var(--pad-x) - var(--spine-lead) - 12px);
  display: block;
  width: 24px;
  height: 100%;
  overflow: visible;
}

.spine path {
  fill: none;
  stroke-linecap: round;
  vector-effect: non-scaling-stroke;
}


.spine__track { stroke: var(--hairline); stroke-width: 1; }

.spine__progress {
  stroke: var(--spine);
  stroke-width: 2;

  filter: drop-shadow(0 0 var(--spine-glow) var(--spine));
  transition: stroke 0.6s var(--ease), filter 0.6s var(--ease);
  stroke-dasharray: var(--spine-len, 0);
  stroke-dashoffset: var(--spine-len, 0);
}


.no-js .spine__progress { filter: none; }


@supports (animation-timeline: scroll()) {
  .spine__progress {
    animation: spine-draw linear both;
    animation-timeline: scroll(root block);
    animation-range: 0% calc((1 - var(--spine-lead-frac, 0)) * 100%);
  }

  @keyframes spine-draw {
    0%   { stroke-dashoffset: var(--spine-len, 0); }
    4%   { stroke-dashoffset: var(--spine-mid, var(--spine-len, 0)); }
    100% { stroke-dashoffset: 0; }
  }
}


.spine__node .spine__tick {
  stroke: var(--hairline);
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
  transition: stroke 0.5s var(--ease), stroke-width 0.5s var(--ease);
}

.spine__node .spine__pad {
  fill: none;
  stroke: var(--hairline);
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
  transition: fill 0.5s var(--ease), stroke 0.5s var(--ease);
}

.spine__node.is-reached .spine__tick { stroke: var(--spine); stroke-width: 2; }
.spine__node.is-reached .spine__pad { stroke: var(--spine); }

.spine__node.is-reached :is(.spine__tick, .spine__pad, .spine__branch) {
  filter: drop-shadow(0 0 var(--spine-glow) var(--spine));
}

.spine__node.is-reached.is-active .spine__pad { fill: var(--spine); stroke: var(--spine); }


.spine__arm {
  fill: none;
  stroke: var(--hairline);
  stroke-width: 1;
  stroke-linecap: round;
  vector-effect: non-scaling-stroke;
  stroke-dasharray: var(--arm-len, 0);
  stroke-dashoffset: 0;
  transition: stroke-dashoffset 0.55s var(--ease), stroke 0.5s var(--ease);
}
.spine__via {
  fill: none;
  stroke: var(--hairline);
  stroke-width: 1.25;
  vector-effect: non-scaling-stroke;
  opacity: 1;
  transition: opacity 0.4s var(--ease) 0.35s, stroke 0.5s var(--ease);
}
.spine__arm-group.is-pending .spine__arm { stroke-dashoffset: var(--arm-len, 0); }
.spine__arm-group.is-pending .spine__via { opacity: 0; }

.spine__node.is-active .spine__arm { stroke: var(--spine); }
.spine__node.is-active .spine__via { stroke: var(--spine); }


.spine__node .spine__branch {
  stroke: var(--hairline);
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
  transition: stroke 0.5s var(--ease), stroke-width 0.5s var(--ease);
}
.spine__node.is-reached .spine__branch { stroke: var(--spine); stroke-width: 2; }


/* --------------------------------------------------------------------------
   7. Header
   -------------------------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0.9rem var(--pad-x);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease);
}
.site-header.is-stuck { border-bottom-color: var(--hairline); }

.site-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 2vw, 1.75rem);

  align-self: stretch;
}
.site-nav a {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: var(--track-label);
  text-transform: uppercase;
  text-decoration: none;
  color: var(--text-dim);
  transition: color 0.2s var(--ease);
}
.site-nav a:hover { color: var(--text); }


.nav-menu { display: none; }


.nav-menu__toggle {
  display: grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid var(--hairline);
  border-radius: 50%;
  color: var(--text-dim);
  cursor: pointer;
  list-style: none;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.nav-menu__toggle::-webkit-details-marker { display: none; }
.nav-menu__toggle:hover { color: var(--text); border-color: var(--text-faint); }
.nav-menu__toggle svg { width: 1rem; height: 1rem; }


.nav-menu__panel {
  position: absolute;
  top: 100%;
  right: var(--pad-x);
  z-index: 1;
  display: grid;
  min-width: 10rem;
  padding: 0.4rem;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background: var(--bg-deep);
}

.nav-menu__link { padding: 0.6rem 0.8rem; }


.nav-menu[open] > .nav-menu__panel {
  animation: nav-menu-in 0.18s var(--ease) both;
}
@keyframes nav-menu-in {
  from { opacity: 0; translate: 0 -0.4rem; }
}


.nav-legal {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;

  align-self: stretch;
}
.nav-legal__disc { display: inline-flex; }

.nav-legal__toggle {
  display: grid;
  place-items: center;
  width: 1.5rem;
  height: 1.5rem;
  color: var(--text-dim);
  cursor: pointer;
  list-style: none;
  transition: color 0.2s var(--ease), rotate 0.2s var(--ease);
}
.nav-legal__toggle::-webkit-details-marker { display: none; }
.nav-legal__toggle:hover { color: var(--text); }
.nav-legal__toggle svg { width: 0.8rem; height: 0.8rem; }

.nav-legal__disc[open] .nav-legal__toggle { color: var(--text); rotate: 180deg; }
.nav-legal__panel {
  position: absolute;
  top: 100%;
  right: 0;
  z-index: 1;
  margin-top: 0.9rem;
  display: grid;
  min-width: 9rem;
  padding: 0.4rem;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background: var(--bg-deep);
}
.nav-legal__link { padding: 0.6rem 0.8rem; white-space: nowrap; }

.nav-legal__disc[open] > .nav-legal__panel {
  animation: nav-menu-in 0.18s var(--ease) both;
}


.nav-menu__link:not(.nav-menu__link--legal) + .nav-menu__link--legal { margin-top: 0.4rem; }

@media (max-width: 40rem) {
  .site-nav .site-nav__link { display: none; }

  .nav-legal { display: none; }
  .nav-menu { display: block; }
}

/* --------------------------------------------------------------------------
   8. Hero
   -------------------------------------------------------------------------- */


.hero {
  --hero-pad-t: clamp(4rem, 12vh, 9rem);
  --hero-pad-b: clamp(3.5rem, 8vw, 7rem);
  position: relative;
  padding-block: var(--hero-pad-t) var(--hero-pad-b);
  overflow: hidden;
}

.hero__mesh {
  position: absolute;
  inset: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;


  color: var(--mesh-line);
  border-top: 0 solid var(--mesh-dot);


  --mesh-keep-x: 100%;
  --mesh-keep-x-full: 100%;
  mask-image:
    linear-gradient(to right,
      transparent 0 var(--mesh-keep-x), #000 var(--mesh-keep-x-full)),
    linear-gradient(to bottom,
      #000 0 calc(var(--hero-pad-t) / 3),
      transparent var(--hero-pad-t),
      transparent calc(100% - var(--hero-pad-b)),
      #000 calc(100% - var(--hero-pad-b) / 3));
  mask-repeat: no-repeat;
  mask-composite: add;
}


@media (min-width: 68.75rem) {
  .hero__mesh { --mesh-keep-x: 84%; --mesh-keep-x-full: 93%; }
}

.hero__inner { position: relative; }

.hero .label { margin-bottom: 1.75rem; }
.hero .display { margin-bottom: 2rem; }


.hero__claim { margin-left: calc(0.087 * var(--fs-display) - 0.565px); }


.hero .lead strong { color: var(--text); font-weight: 600; }


.hero__rail { margin-top: clamp(0.75rem, 2vw, 1.5rem); }

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 2.5rem;
}

/* --------------------------------------------------------------------------
   9. Buttons & pills
   -------------------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 1.6rem;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  font: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: var(--track-label);
  text-transform: uppercase;
  text-decoration: none;
  color: var(--text);
  background: transparent;
  cursor: pointer;
  box-shadow: var(--elev-0);
  transition: background-color 0.25s var(--ease), color 0.25s var(--ease),
              border-color 0.25s var(--ease), translate 0.25s var(--ease),
              box-shadow 0.25s var(--ease), filter 0.25s var(--ease);
}
.btn:hover { border-color: currentColor; translate: 0 -3px; box-shadow: var(--elev-1); }

.btn:active { translate: 0 1px; box-shadow: var(--elev-0); transition-duration: 0.09s; }

.btn--primary {
  background: var(--accent-bright, var(--services-bright));
  border-color: transparent;
  color: var(--on-accent, #04070e);
}
.btn--primary:hover { filter: brightness(1.08); }

.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.5rem 1.1rem;
  border-radius: 999px;
  border: 1px solid var(--hairline);
  font-size: 0.875rem;
  text-decoration: none;
  color: var(--text);
  box-shadow: var(--elev-0);
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease),
              translate 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.pill:hover { border-color: var(--accent); background: var(--surface); translate: 0 -2px; box-shadow: var(--elev-1); }
.pill:active { translate: 0 1px; box-shadow: var(--elev-0); transition-duration: 0.09s; }
.pill svg { width: 0.95rem; height: 0.95rem; flex: none; color: var(--accent); }


.pill--accent {
  background: var(--accent-bright, var(--services-bright));
  border-color: transparent;
  color: var(--on-accent, #04070e);
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease),
              translate 0.2s var(--ease), box-shadow 0.2s var(--ease),
              filter 0.2s var(--ease);
}
.pill--accent svg { color: currentColor; }
.pill--accent:hover {
  background: var(--accent-bright, var(--services-bright));
  border-color: transparent;
  filter: brightness(1.08);
  translate: 0 -2px;
  box-shadow: var(--elev-1);
}
.pill--accent:active {
  translate: 0 1px;
  box-shadow: var(--elev-0);
  filter: none;
  transition-duration: 0.09s;
}

/* --------------------------------------------------------------------------
   9b. The pillar chips — the page's second signature moment
   -------------------------------------------------------------------------- */

.chips {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1rem, 2vw, 1.5rem);
}


.chips > li { display: grid; }

.chip {
  --bracket: 18px;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: clamp(1.5rem, 3vw, 2rem);
  text-decoration: none;
  color: inherit;
  background-color: var(--surface);
  background-image:
    linear-gradient(var(--accent), var(--accent)),
    linear-gradient(var(--accent), var(--accent)),
    linear-gradient(var(--accent), var(--accent)),
    linear-gradient(var(--accent), var(--accent)),
    linear-gradient(var(--accent), var(--accent)),
    linear-gradient(var(--accent), var(--accent)),
    linear-gradient(var(--accent), var(--accent)),
    linear-gradient(var(--accent), var(--accent));
  background-repeat: no-repeat;
  background-size:
    var(--bracket) 1px, 1px var(--bracket),
    var(--bracket) 1px, 1px var(--bracket),
    var(--bracket) 1px, 1px var(--bracket),
    var(--bracket) 1px, 1px var(--bracket);
  background-position:
    left top, left top,
    right top, right top,
    left bottom, left bottom,
    right bottom, right bottom;
  box-shadow: var(--elev-0);
  transition: translate 0.25s var(--ease), box-shadow 0.25s var(--ease),
              background-size 0.25s var(--ease),
              background-color 0.25s var(--ease);
}


.chip.reveal {
  transition: opacity 0.7s var(--ease) var(--delay, 0ms),
              transform 0.7s var(--ease) var(--delay, 0ms),
              translate 0.25s var(--ease), box-shadow 0.25s var(--ease),
              background-size 0.25s var(--ease),
              background-color 0.25s var(--ease);
}

.chip:hover {
  --bracket: 30px;
  translate: 0 -3px;
  box-shadow: var(--elev-1);
  background-color: var(--surface-2);
}


.chip:active {
  translate: 0 1px;
  box-shadow: var(--elev-0);
  transition-duration: 0.09s;
}

.chip__name {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: var(--track-label);
  text-transform: uppercase;
  line-height: 1.35;
  color: var(--accent);
}


.chip__desc {
  margin: 0;
  color: var(--text-dim);
  max-width: var(--measure);
}

.chip__more {
  margin-top: auto;
  font-size: 0.875rem;
  color: var(--text-faint);
  transition: color 0.25s var(--ease);
}
.chip:hover .chip__more,
.chip:focus-visible .chip__more { color: var(--accent); }

@media (max-width: 53.75rem) {
  .chips { grid-template-columns: 1fr; }
}

/* --------------------------------------------------------------------------
   10. Cards & grids
   -------------------------------------------------------------------------- */

.grid { display: grid; gap: clamp(1rem, 2.5vw, 1.75rem); }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 22rem), 1fr)); }

.grid--2 > * > .ticks { max-width: var(--measure); }


.ticks { list-style: none; margin: 0; padding: 0; display: grid; gap: calc(0.7rem * var(--rhythm-text)); }
.ticks li {
  position: relative;
  padding-left: 1.5rem;
  color: var(--text-dim);
  break-inside: avoid;
}
.ticks li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  border: 1.5px solid var(--accent);
}

/* --------------------------------------------------------------------------
   11. IT-Check — the panel, Ablauf, and the Ampel report
   -------------------------------------------------------------------------- */


.panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
  column-gap: clamp(1.75rem, 4vw, 3.5rem);
  row-gap: clamp(1.5rem, 3vw, 2.5rem);
  align-items: start;
}

.panel__part:nth-child(2) {
  grid-column: 2;
  grid-row: span 2;
  border: 1px solid var(--hairline);
  padding: 1.25rem;
  background: var(--surface);
}

.panel__part:nth-child(2) > .rail__key {
  display: block;
  margin: -1.25rem -1.25rem 1rem;
  padding: 0.7rem 1.25rem;
  border-bottom: 1px solid var(--hairline);
  background: var(--surface-2);
}
.panel__part:nth-child(1),
.panel__part:nth-child(3) { grid-column: 1; }
.panel__part:nth-child(3) { margin-top: 1.75rem; }

@media (max-width: 53.75rem) {
  .panel { grid-template-columns: 1fr; }
  .panel__part:nth-child(1),
  .panel__part:nth-child(2),
  .panel__part:nth-child(3) { grid-column: 1; grid-row: auto; }
  .panel__part:nth-child(3) { margin-top: 0; }
}

.panel__part { min-width: 0; }


.panel__part > .rail__key { margin-bottom: 0.9rem; }


.panel__part > p + .ampel { margin-top: 0.6rem; }


@media (max-width: 68.75rem) {
  .panel { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 53.75rem) {
  .panel { grid-template-columns: 1fr; padding-inline: 0; }
}

.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 1.75rem; counter-reset: step; }
.steps li {
  position: relative;
  padding-left: 3.25rem;
  counter-increment: step;
}
.steps li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: -0.15em;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: var(--track-label);
  color: var(--accent);
}
.steps li::after {
  content: "";
  position: absolute;
  left: 1.55rem;
  top: 1.6em;
  bottom: -1.75rem;
  width: 1px;
  background: var(--hairline);
}
.steps li:last-child::after { display: none; }
.steps strong { display: block; font-weight: 600; margin-bottom: 0.2rem; }
.steps span { color: var(--text-dim); }


.ampel {
  display: grid;
  gap: 0.55rem;
  margin-top: 1.5rem;
  border-top: 1px solid var(--hairline);
}
.ampel__row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 1rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--hairline);
}
.ampel__row > span {
  font-family: var(--font-mono);
  letter-spacing: var(--track-label);
  text-transform: uppercase;
  font-size: 0.75rem;
  font-weight: 600;
}
.ampel__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--state);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--state) 20%, transparent);
  scale: 0;
  transition: scale 0.45s var(--ease);
}
.is-revealed .ampel__dot { scale: 1; }
.ampel__row[data-state="ok"] { --state: var(--ok); }
.ampel__row[data-state="warn"] { --state: var(--warn); }
.ampel__row[data-state="bad"] { --state: var(--bad); }


.ampel__legend {
  display: flex;
  flex-direction: column;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.1rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: var(--track-label);
  text-transform: uppercase;
  color: var(--text-dim);
}
.ampel__legend span { display: inline-flex; align-items: center; gap: 0.45rem; }
.ampel__legend i {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--state);
  font-style: normal;
}

/* --------------------------------------------------------------------------
   11b. Hardware triptych — the TimeLine-Hardware sub-block
   -------------------------------------------------------------------------- */


.gear {
  list-style: none;
  margin: 0;
  padding: clamp(1.25rem, 2.5vw, 2rem);
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  column-gap: clamp(1.5rem, 3vw, 2.5rem);
  row-gap: 1rem;
  align-items: start;
}
.gear__col { display: grid; grid-row: span 5; grid-template-rows: subgrid; gap: 1rem; align-content: start; }
.gear__icon {
  width: 2.5rem;
  height: 2.5rem;
  margin-bottom: 0.25rem;
  color: var(--accent);
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.gear__key {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: var(--track-label);
  text-transform: uppercase;
  color: var(--accent);
}
.gear__fact {
  margin: 0;
  font-size: var(--fs-title);
  line-height: 1.25;
  font-weight: 600;
  letter-spacing: -0.005em;
  color: var(--text);

}

.gear__text { margin: 0; max-width: var(--measure); font-size: 0.875rem; line-height: 1.5; color: var(--text-dim); }
.gear__models {
  margin: 0.25rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: var(--track-label);
  text-transform: uppercase;
  color: var(--text-faint);
}

@media (max-width: 68.75rem) {
  .gear { grid-template-columns: 1fr; }
  .gear__col + .gear__col { margin-top: calc(1.4rem * var(--rhythm-text)); }   
}

/* --------------------------------------------------------------------------
   12. Hosting spec grid — tabular content gets a table's honesty
   -------------------------------------------------------------------------- */


.specs {
  display: grid;
  margin-left: calc(var(--rail) + var(--rail-gap));
  padding: clamp(1.25rem, 2.5vw, 2rem);
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);

  min-width: 0;
  max-width: 62rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 11rem), 1fr));
  column-gap: clamp(1.5rem, 3vw, 2.5rem);

  row-gap: calc(1.8rem * var(--rhythm-text));
}


.specs > div:first-child {
  grid-column: 1 / -1;
  padding-bottom: calc(1.4rem * var(--rhythm-text));
  border-bottom: 1px solid var(--hairline);
}
.specs > div:first-child dd {
  font-size: clamp(1.6rem, 1.1rem + 1.6vw, 2.6rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
}
@media (max-width: 53.75rem) {
  .specs { margin-left: 0; }
}
.specs > div {
  display: flex;
  flex-direction: column-reverse;
  justify-content: flex-end;
  gap: 0.3rem;
}
.specs dt {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: var(--track-label);
  text-transform: uppercase;
  color: var(--accent);
  margin: 0;

  overflow-wrap: break-word;
}

.specs dd {
  margin: 0;
  font-size: 1.1rem;
  line-height: 1.25;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
}
.specs dt { margin: 0; }

/* --------------------------------------------------------------------------
   13. Security layers — the KERN capability catalogue
   -------------------------------------------------------------------------- */


.rails.kern {
  margin-left: calc(var(--rail) + var(--rail-gap));
  margin-top: var(--rail-row-gap);
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: clamp(1.5rem, 3vw, 2.5rem);
  row-gap: 0;
  align-items: start;
}

.rails.kern {
  padding: clamp(1.25rem, 2.5vw, 2rem);
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
}
.rails.kern > .kern__group { display: block; }

.rails.kern > .kern__group:nth-child(odd)  { grid-column: 1; }
.rails.kern > .kern__group:nth-child(even) { grid-column: 2; }


.kern__group > .rail__key {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.8rem 0;
  font-size: 0.875rem;
  color: var(--accent);
  border-top: 1px solid var(--hairline);
}

.rails.kern > .kern__group:nth-child(-n+2) > .rail__key { border-top: 0; }
.kern__group .rail__body { padding-bottom: calc(1rem * var(--rhythm-text)); }

@media (max-width: 53.75rem) {
  .rails.kern { grid-template-columns: 1fr; }
  .rails.kern { margin-left: 0; }
  .rails.kern > .kern__group:nth-child(even),
  .rails.kern > .kern__group:nth-child(odd) { grid-column: 1; }
  .rails.kern > .kern__group:nth-child(-n+2) > .rail__key { border-top: 1px solid var(--hairline); }
  .rails.kern > .kern__group:nth-child(1) > .rail__key { border-top: 0; }
}

.kern__list {
  list-style: none;
  margin: 0;
  padding: 0;

  max-width: var(--measure);
  display: grid;
  grid-template-columns: 1fr;
  row-gap: 0.1rem;
  column-gap: 0;

  container-type: inline-size;
}


.kern__row + .kern__row { border-top: 1px solid var(--hairline); }

.kern__summary {
  display: grid;                 

  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 1rem;
  row-gap: 0.15rem;
  min-height: 44px;              
  padding-block: calc(0.6rem * var(--rhythm-text));
  cursor: pointer;
  color: var(--text);

  font-weight: 600;
  font-size: var(--fs-body);
  line-height: 1.35;
  list-style: none;              
  transition: color 0.2s var(--ease);
}

.kern__summary::-webkit-details-marker { display: none; }


.kern__term { grid-column: 1; }
.kern__summary > .kern__product { grid-column: 1; }


.kern__summary::after {
  content: "";
  grid-column: 2;
  grid-row: 1 / span 2;
  align-self: center;
  width: 0.44rem;
  height: 0.44rem;
  border-right: 1.5px solid var(--text-dim);
  border-bottom: 1.5px solid var(--text-dim);
  rotate: 45deg;
  transition: rotate 0.3s var(--ease), border-color 0.2s var(--ease);
}
.kern__item[open] > .kern__summary::after { rotate: 225deg; }

.kern__summary:hover,
.kern__item[open] > .kern__summary { color: var(--accent); }
.kern__summary:hover::after,
.kern__item[open] > .kern__summary::after { border-color: var(--accent); }


@container (min-width: 26rem) {
  .kern__summary {
    grid-template-columns: minmax(0, max-content) minmax(0, 1fr) auto;
    gap: 0.9rem;
    row-gap: 0;
    padding-block: calc(0.38rem * var(--rhythm-text));
  }
  .kern__summary > .kern__product { grid-column: 2; text-align: end; }
  .kern__summary::after { grid-column: 3; grid-row: 1 / span 1; }
}


.kern__item::details-content {
  display: grid;
  grid-template-rows: 0fr;
  overflow: clip;
  transition-property: grid-template-rows, content-visibility;
  transition-duration: 0.32s;
  transition-timing-function: var(--ease);
  transition-behavior: allow-discrete;
}
.kern__item[open]::details-content { grid-template-rows: 1fr; }


.kern__detail {
  overflow: hidden;
  min-height: 0;
}

.kern__product {
  display: block;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: var(--track-label);
  text-transform: uppercase;
  color: var(--text-faint);
  transition: color 0.2s var(--ease);
}
.kern__summary:hover .kern__product,
.kern__item[open] > .kern__summary .kern__product { color: var(--accent); }

.kern__detail p {
  margin: 0;
  padding-bottom: calc(1.1rem * var(--rhythm-text));
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--text-dim);
  max-width: var(--measure);
}

/* --------------------------------------------------------------------------
   13a. The three-stage build — Endpoint to MDR
   -------------------------------------------------------------------------- */

.build { margin-top: 0; }


.build > .lead { max-width: var(--measure); }

.stages {
  --stage-gap: clamp(1rem, 2vw, 1.75rem);

  --via-axis: 8.5px;
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--stage-gap);
}


.stage {
  position: relative;
  padding-top: 2.125rem;   
  --via: 11px;
  --trace-w: 1.5px;
}
.stage:nth-child(2) { --via: 14px; --trace-w: 2px; }

.stage:nth-child(3) { --via: 17px; }


.stage__via {
  position: absolute;
  left: 0;
  top: calc(var(--via-axis) - var(--via) / 2);
  width: var(--via);
  height: var(--via);
  border-radius: 50%;
  border: 1.5px solid var(--accent);
}

.stage--peak .stage__via {
  border-width: 2px;
  background: var(--accent);
  box-shadow: 0 0 0 5px color-mix(in srgb, var(--accent) 18%, transparent);
}


.stage:not(:last-child)::before {
  content: "";
  position: absolute;
  left: var(--via);
  top: calc(var(--via-axis) - var(--trace-w) / 2);
  right: calc(-1 * var(--stage-gap));
  height: var(--trace-w);
  background: var(--accent);
  opacity: 0.75;
}

.stage__name {
  display: block;
  margin-bottom: 0.25rem;   
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: var(--track-label);
  text-transform: uppercase;
}

.stage__who {
  margin: 0 0 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: var(--track-label);
  text-transform: uppercase;
  line-height: 1.35;
  color: var(--text-dim);
}

.stage p:not(.stage__who) { margin: 0; font-size: 0.875rem; line-height: 1.5; color: var(--text-dim); max-width: var(--measure); }
.stage--peak .stage__name { color: var(--accent); }
.stage--peak .stage__who { color: var(--accent); }

.stage--peak p:not(.stage__who) { font-size: var(--fs-body); line-height: 1.65; color: var(--text); }


@media (max-width: 68.75rem) {
  .stages { grid-template-columns: 1fr; }
  .stage { padding-top: 0; padding-inline-start: 1.75rem; }
  .stage__via {
    left: calc(var(--via-axis) - var(--via) / 2);
    top: calc(11px - var(--via) / 2);
  }
  .stage:not(:last-child)::before {
    left: calc(var(--via-axis) - var(--trace-w) / 2);
    top: calc(11px + var(--via) / 2);
    right: auto;
    bottom: calc(-1 * var(--stage-gap));
    width: var(--trace-w);
    height: auto;
  }
}

/* --------------------------------------------------------------------------
   13b. Service levels (Wartung & Monitoring)
   -------------------------------------------------------------------------- */


.levels {
  display: grid;
  gap: clamp(1rem, 2.5vw, 1.5rem);
  grid-template-columns: repeat(3, minmax(0, 1fr));

  align-items: stretch;
}
.level {
  display: flex;
  flex-direction: column;
  gap: calc(1rem * var(--rhythm-text));
  padding: clamp(1.4rem, 3vw, 2rem);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--elev-0);
  transition: translate 0.3s var(--ease), border-color 0.3s var(--ease),
              box-shadow 0.3s var(--ease);
}

.level.reveal {
  transition: opacity 0.7s var(--ease) var(--delay, 0ms),
              transform 0.7s var(--ease) var(--delay, 0ms),
              translate 0.3s var(--ease), border-color 0.3s var(--ease),
              box-shadow 0.3s var(--ease);
}
.level:hover { translate: 0 -6px; box-shadow: var(--elev-2); }

.level__name { display: flex; align-items: center; gap: 0.7rem; }
.level__name::after {
  content: "";
  flex: none;
  height: 3px;
  width: 66px;
  background-repeat: no-repeat, no-repeat;
  background-size: var(--fill, 100%) 100%, 100% 100%;
  background-image:
    repeating-linear-gradient(90deg, var(--accent) 0 20px, transparent 20px 23px),
    repeating-linear-gradient(90deg, var(--hairline) 0 20px, transparent 20px 23px);
}
.level:nth-child(1) .level__name::after { --fill: 20px; }
.level:nth-child(2) .level__name::after { --fill: 43px; }
.level:nth-child(3) .level__name::after { --fill: 100%; }
.level:not(.level--peak) .level__name { color: var(--text-dim); }
.level__name {
  font-family: var(--font-mono);

  font-size: var(--fs-key);
  font-weight: 600;
  text-transform: uppercase;

  letter-spacing: 0.02em;
  line-height: 1.25;
  color: var(--accent);
}
.level__for { font-size: 0.875rem; color: var(--text-dim); margin: 0; }
.level__adds {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: var(--track-label);
  text-transform: uppercase;
  color: var(--accent);
  margin: 0;
}


.level__for,
.level .ticks { max-width: var(--measure); }
@media (max-width: 68.75rem) {
  .levels { grid-template-columns: 1fr; }
}


.cfg-root[data-open] .levels { align-items: start; }


.cfg-root .level.reveal {
  transition: opacity 0.7s var(--ease) var(--delay, 0ms),
              transform 0.7s var(--ease) var(--delay, 0ms),
              translate 0.3s var(--ease), border-color 0.3s var(--ease),
              box-shadow 0.3s var(--ease),
              filter 0.3s var(--ease), scale 0.35s var(--ease);
}
.cfg-root[data-open] .level:not([data-sel]) { filter: opacity(0.42); }
.cfg-root .level[data-sel] {
  border-color: color-mix(in srgb, var(--accent) 55%, transparent);
  scale: 1.012;
  box-shadow: var(--elev-2);
}


.level__pick {
  margin-top: auto;
  align-self: start;
  padding: 0.35rem 0;
  border: 0;
  background: none;
  cursor: pointer;
  font: inherit;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: var(--track-label);
  text-transform: uppercase;
  color: var(--text);
  box-shadow: inset 0 -1px 0 0 var(--accent);
  transition: box-shadow 0.25s var(--ease), color 0.25s var(--ease);
}
.level__pick:hover { box-shadow: inset 0 -2px 0 0 var(--accent); }
.level__pick[aria-expanded="true"] { color: var(--accent); }


.cfg-inline { display: grid; grid-template-rows: 0fr; transition: grid-template-rows 0.2s var(--ease); }
.cfg-inline__clip { overflow: hidden; min-height: 0; }
.level[data-sel] .cfg-inline { grid-template-rows: 1fr; transition-duration: 0.35s; }

.cfg {
  display: grid;
  gap: 0.95rem;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--hairline);
}
.cfg__key {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: var(--track-label);
  text-transform: uppercase;
  color: var(--accent);
}
.cfg__grid { display: grid; gap: 0.8rem; }
.cfg__unit { display: grid; gap: 0.45rem; }
.cfg__label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: var(--track-label);
  text-transform: uppercase;
  color: var(--text);
}
.cfg__row { display: flex; align-items: center; gap: 0.9rem; }


.cfg__range {
  flex: 1 1 auto;
  min-width: 0;
  height: 22px;
  margin: 0;
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
  cursor: pointer;
}
.cfg__range::-webkit-slider-runnable-track {
  height: 3px;
  border-radius: 2px;
  background: linear-gradient(90deg,
    var(--accent) 0 var(--fill, 0%),
    rgba(255, 255, 255, 0.42) var(--fill, 0%) 100%);
}
.cfg__range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 15px;
  height: 15px;
  margin-top: -6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 1px rgba(4, 7, 14, 0.55);
}
.cfg__range::-moz-range-track { height: 3px; border-radius: 2px; background: rgba(255, 255, 255, 0.42); }
.cfg__range::-moz-range-progress { height: 3px; border-radius: 2px; background: var(--accent); }
.cfg__range::-moz-range-thumb { width: 15px; height: 15px; border: 0; border-radius: 50%; background: var(--accent); }


.cfg__num {
  width: 4.5rem;
  flex: none;
  padding: 0.4rem 0.55rem;
  font: inherit;
  font-size: 0.9375rem;
  font-variant-numeric: tabular-nums;
  text-align: right;
  color: var(--text);
  background: var(--surface-2);
  border: 1px solid var(--control-line);
  border-radius: 10px;
}
.cfg__readout {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-variant-numeric: tabular-nums;
  color: var(--text-dim);
}
.cfg__send { align-self: start; }


.no-js .level__pick, .no-js .cfg-inline { display: none; }

@media (prefers-reduced-motion: reduce) {
  .cfg-root .level.reveal,
  .cfg-inline,
  .level[data-sel] .cfg-inline { transition-duration: 0.01ms; }
  .cfg-root .level[data-sel] { scale: 1; }
}


/* --------------------------------------------------------------------------
   13c. The contract bridge
   -------------------------------------------------------------------------- */


.msp-bridge {
  display: block;
  max-width: var(--measure);
  margin-bottom: 2.25rem;
  padding: clamp(0.95rem, 2vw, 1.3rem) clamp(1.1rem, 2.2vw, 1.5rem);
  border-inline-start: 2px solid #5eccfa;
  border-inline-start-color: var(--accent);
  background: rgba(255, 255, 255, 0.04);
  background: var(--surface);
  text-decoration: none;
  color: inherit;
}
.msp-bridge__key {
  display: block;
  margin-bottom: 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: var(--track-label);
  text-transform: uppercase;
  color: #5eccfa;
  color: var(--accent);
}
.msp-bridge__text {
  font-size: var(--fs-body);   
  line-height: 1.65;
  color: #ffffff;
  color: var(--text);
}
.msp-bridge__more {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: var(--track-label);
  text-transform: uppercase;
  white-space: nowrap;
  color: #5eccfa;
  color: var(--accent);
}

.msp-bridge:hover .msp-bridge__more,
.msp-bridge:focus-visible .msp-bridge__more {
  text-decoration: underline;
  text-underline-offset: 3px;
}


/* --------------------------------------------------------------------------
   14. Partner & Über uns
   -------------------------------------------------------------------------- */


.partners {
  list-style: none; margin: 0; padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;

  inline-size: min(100%, var(--marks, 26rem));
}
.partners li:first-child { grid-column: 1 / -1; }

.partners li {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1rem;
  background: var(--surface);
  backdrop-filter: blur(6px);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
}
.partners img {
  background: none;
  padding: 0;
  border: 0;
  border-radius: 0;
}

.partners li:first-child img { width: 100%; height: auto; }

.partners li:nth-child(n+2) img { width: 100%; height: 6.75rem; object-fit: contain; }


.partner-band {
  --marks: 26rem;   
  display: grid;

  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: clamp(1rem, 2.5vw, 1.75rem);   

  row-gap: var(--rail-row-gap);

  align-items: start;
}

.partner-copy { display: grid; row-gap: calc(0.9rem * var(--rhythm-text)); align-content: start; }
.partner-copy > .lead { max-width: var(--measure); }
.partner-copy > .ticks { gap: 0.5rem; font-size: 0.875rem; line-height: 1.5; }


@media (max-width: 68.75rem) {
  .partner-band { grid-template-columns: 1fr; }
}


.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 2rem; }
.rail-indent > .lead + .stats { margin-top: calc(clamp(2rem, 4vw, 2.5rem) * var(--rhythm)); }
@media (max-width: 68.75rem) {
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
.stat__value {
  display: block;
  font-size: clamp(2.2rem, 1.4rem + 2.6vw, 3.4rem);
  font-weight: 300;
  line-height: 1;
  color: var(--accent);
}
.stat__label {
  display: block;
  margin-top: 0.6rem;
  font-size: 0.875rem;
  color: var(--text-dim);
}


.odo-row {
  --odo-step: 1.1em;
  display: inline-flex;
  align-items: flex-end;
  font-variant-numeric: tabular-nums;
}
.odo-sep, .odo-suf { line-height: var(--odo-step); }

.odo {
  --turns: 3;
  display: inline-block;
  overflow: hidden;
  height: var(--odo-step);
}
.odo--ones { --turns: 4; }
.odo::before {
  content: "0\A 1\A 2\A 3\A 4\A 5\A 6\A 7\A 8\A 9\A 0\A 1\A 2\A 3\A 4\A 5\A 6\A 7\A 8\A 9\A 0\A 1\A 2\A 3\A 4\A 5\A 6\A 7\A 8\A 9\A 0\A 1\A 2\A 3\A 4\A 5\A 6\A 7\A 8\A 9\A 0\A 1\A 2\A 3\A 4\A 5\A 6\A 7\A 8\A 9";
  display: block;
  white-space: pre;
  line-height: var(--odo-step);
  translate: 0 calc(-1 * var(--odo-step) * (var(--turns) * 10 + var(--d)));
}


/* --------------------------------------------------------------------------
   15. Contact
   -------------------------------------------------------------------------- */

.contact-grid {
  display: grid;
  gap: clamp(2rem, 5vw, 4rem);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 20rem), 1fr));
  align-items: start;
}


#kontakt-form {
  padding: clamp(1.25rem, 2.5vw, 2rem);
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
}

.field { display: grid; gap: 0.45rem; margin-bottom: calc(1.1rem * var(--rhythm-text)); }
.field label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: var(--track-label);
  text-transform: uppercase;

  color: var(--text);
}

.field .req { color: var(--text); }

.field input,
.field textarea,
.field select {
  width: 100%;
  padding: 0.8rem 1rem;
  font: inherit;

  font-size: 1rem;
  color: var(--text);
  caret-color: var(--accent);   
  background: var(--surface-2);
  border: 1px solid var(--control-line);
  border-radius: 10px;
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.field textarea {
  field-sizing: content;
  min-height: 8rem;
  max-height: 24rem;
  resize: vertical;
}
.field input:hover, .field textarea:hover, .field select:hover { border-color: var(--text-dim); }

.field :is(input, textarea)[aria-invalid="true"] { border-color: var(--bad); }
.field input:focus, .field textarea:focus, .field select:focus { border-color: var(--accent); }
.field input::placeholder, .field textarea::placeholder { color: var(--text-faint); }

.field select option {
  background-color: var(--bg);
  color: var(--text);
}

.field__error { margin: 0; font-size: 0.875rem; color: var(--bad); }
.form__status a { color: var(--accent); }

.field-row { display: grid; gap: 1.1rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 12rem), 1fr)); }


.form__note { font-size: 0.875rem; color: var(--text-faint); margin-top: 1rem; max-width: var(--measure); }
.form__note a { color: var(--accent); }

.form__status {
  margin-top: 1rem;
  padding: 0.85rem 1.1rem;
  border-radius: 10px;
  font-size: var(--fs-body);   
  border: 1px solid var(--hairline);
  background: var(--surface-2);
}
.form__status[hidden] { display: none; }
.form__status[data-state="error"] { border-color: var(--bad); }
.form__status[data-state="ok"] { border-color: var(--ok); }

.contact-direct { display: grid; gap: 1.6rem; }
.contact-direct .h3 { margin-bottom: 0.9rem; }
.contact-direct__pills { display: flex; flex-wrap: wrap; gap: 0.6rem; }

/* --------------------------------------------------------------------------
   16. Footer
   -------------------------------------------------------------------------- */

.site-footer {
  border-top: 1px solid var(--hairline);
  padding-block: clamp(2.5rem, 6vw, 4rem);
  margin-top: var(--section-y);
  --accent: var(--text-dim);
}
.site-footer__grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), 1fr));
}

.site-footer a {
  color: var(--text-dim);
  text-decoration: none;
  display: inline-block;
  min-height: 24px;
}
.site-footer a:hover { color: var(--text); text-decoration: underline; }


.site-footer .logo--dark {
  transform: scale(2.2);
  transform-origin: left top;
  position: relative;
  z-index: 1;
}
.site-footer address { font-style: normal; color: var(--text-dim); }
.site-footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--hairline);
  font-size: 0.875rem;
  color: var(--text-faint);
}
.site-footer__legal nav { display: flex; gap: 1.25rem; margin-left: auto; }

/* --------------------------------------------------------------------------
   17. Legal pages (prose)
   -------------------------------------------------------------------------- */


.prose { max-width: var(--measure); }

.legal .prose { max-width: none; }


.prose h2 { font-size: var(--fs-title); line-height: 1.25; margin: calc(2.75rem * var(--rhythm-text)) 0 0.85rem; text-transform: none; }

.prose h3 { font-size: var(--fs-body); line-height: 1.35; font-weight: 600; margin: calc(2.25rem * var(--rhythm-text)) 0 0.5rem; text-transform: none; letter-spacing: 0; }

.prose h4 { font-weight: 600; line-height: 1.35; margin: calc(1.75rem * var(--rhythm-text)) 0 0.4rem; text-transform: none; letter-spacing: 0; color: var(--text-dim); }

.prose strong { font-weight: 600; }
.prose p, .prose li { color: var(--text-dim); }

.prose ul, .prose ol {
  padding-left: 1.25rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: calc(0.4rem * var(--rhythm-text));
  margin: 0 0 calc(1rem * var(--rhythm-text));
}
.prose li, .prose p { overflow-wrap: break-word; }

.prose a { color: var(--text); overflow-wrap: anywhere; }

.prose > h2:first-of-type { margin-top: 0; }


.legal {
  display: grid;


  grid-template-columns: minmax(0, 19rem) minmax(0, calc(var(--measure) * 1.3));
  gap: clamp(2rem, 5vw, 3.5rem);
  align-items: start;
}
.toc {
  position: sticky;
  top: 6rem;
  max-height: calc(100dvh - 8rem);
  overflow-y: auto;
  padding: clamp(1.1rem, 3vw, 1.6rem) clamp(1.1rem, 3vw, 1.75rem);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  background: var(--surface);
}


.imprint {
  position: sticky;
  top: 6rem;
  padding: clamp(1.1rem, 3vw, 1.6rem) clamp(1.1rem, 3vw, 1.75rem);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  background: var(--surface);
}

.imprint__list { display: grid; gap: 0; margin: 0; }
.imprint__list dt { margin-top: 1.5rem; }
.imprint__list dt:first-child { margin-top: 0; }
.imprint__list dt {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: var(--track-label);
  text-transform: uppercase;
  color: var(--accent);
}
.imprint__list dd {
  margin: 0.35rem 0 0;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--text-dim);
}

.imprint__list dd strong { display: block; margin-bottom: 0.3rem; color: var(--text); font-weight: 600; }
.imprint__list dd p { margin: 0; }

.imprint__list dd { font-variant-numeric: tabular-nums; }
.imprint__list dd a { color: var(--text); overflow-wrap: anywhere; }

@media (max-width: 64rem) {
  .imprint { position: static; margin-bottom: calc(1rem * var(--rhythm-text)); }
}

.toc__title {
  margin: 0 0 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: var(--track-label);
  text-transform: uppercase;
  color: var(--accent);
}

@media (max-width: 64rem) {
  .legal { grid-template-columns: minmax(0, var(--measure)); }
  .toc {
    position: static;
    max-height: none;
    margin-bottom: calc(1rem * var(--rhythm-text));
  }
}


.legal:has(> .toc) .prose { counter-reset: sec; }
.legal:has(> .toc) .prose h2 { counter-increment: sec; counter-reset: sub; }
.legal:has(> .toc) .prose h3 { counter-increment: sub; }
.legal:has(> .toc) .prose h2,
.legal:has(> .toc) .prose h3 {
  display: grid;
  grid-template-columns: 3.4ch 1fr;
  gap: 0.85rem;
  align-items: baseline;
}
.legal:has(> .toc) .prose h2::before,
.legal:has(> .toc) .prose h3::before {
  font-family: var(--font-mono);
  font-weight: 600;
  font-variant-numeric: tabular-nums;

  font-size: 0.8125rem;
  line-height: 1.6;
}
.legal:has(> .toc) .prose h2::before { content: counter(sec); color: var(--accent); }
.legal:has(> .toc) .prose h3::before { content: counter(sec) "." counter(sub); color: var(--text-faint); }


.toc li[data-current] > a { color: var(--text); }
.toc > ol > li[data-current]::before,
.toc > ol > li > ol > li[data-current]::before { color: var(--accent); }
.toc li[data-current] {
  border-radius: 8px;
  background: var(--surface-2);

  margin-inline: -0.5rem;
  padding-inline: 0.5rem;
}

.toc ol { list-style: none; margin: 0; padding: 0; }
.toc > ol { counter-reset: toc; }
.toc > ol > li { counter-increment: toc; }

.toc > ol > li > ol {
  grid-column: 2;
  counter-reset: toc-sub;
  margin: 0.35rem 0 0.9rem;
}
.toc > ol > li > ol > li { counter-increment: toc-sub; }

.toc li {
  display: grid;
  grid-template-columns: 3.2ch 1fr;
  gap: 0.75rem;
  margin: 0;
  padding: 0.28rem 0;
}
.toc li::before {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-variant-numeric: tabular-nums;
  color: var(--text-faint);

  line-height: 1.5;
}
.toc > ol > li::before { content: counter(toc); }
.toc > ol > li > ol > li::before { content: counter(toc) "." counter(toc-sub); }

.toc a {
  color: var(--text);
  line-height: 1.5;
  text-decoration: none;
}
.toc a:hover, .toc a:focus-visible { text-decoration: underline; }
.toc > ol > li > ol a { color: var(--text-dim); font-size: 0.9375rem; }
.toc > ol > li > ol a:hover { color: var(--text); }

.notice {
  padding: 1.1rem 1.35rem;
  border: 1px dashed var(--warn);
  border-radius: var(--radius);
  background: var(--surface-2);
  color: var(--text-dim);
  font-size: 0.875rem;
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   18. Reveal-on-scroll
   -------------------------------------------------------------------------- */


.reveal {
  opacity: 0;
  transform: translateY(1.25rem);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  transition-delay: var(--delay, 0ms);
}
.reveal.is-revealed { opacity: 1; transform: none; }


.no-js .reveal { opacity: 1; transform: none; }


.no-js .ampel__dot { scale: 1; }

/* --------------------------------------------------------------------------
   18b. Scroll-linked motion
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: no-preference) {
  @supports (animation-timeline: view()) {
    .stages { view-timeline-name: --stages; }


    .stage__via {
      animation: via-light linear both;
      animation-timeline: --stages;
    }

    @keyframes via-light { from { opacity: 0; scale: 0.4; } to { opacity: 1; scale: 1; } }


    .stage:not(:last-child)::before {
      transform-origin: 0 50%;
      animation: stage-draw linear both;
      animation-timeline: --stages;
    }
    @keyframes stage-draw {
      from { transform: scaleX(0); }
      to   { transform: scaleX(1); }
    }


    @media (max-width: 68.75rem) {
      .stage:not(:last-child)::before {
        transform-origin: 50% 0;
        animation-name: stage-draw-v;
      }
      @keyframes stage-draw-v {
        from { transform: scaleY(0); }
        to   { transform: scaleY(1); }
      }
    }


    .stage :is(.stage__name, .stage__who, .stage p) {
      animation: stage-text linear both;
      animation-timeline: --stages;
    }
    @keyframes stage-text { from { opacity: 0; } to { opacity: 1; } }


    .stage:nth-child(1) .stage__via { animation-range: 2% 9%; }
    .stage:nth-child(1)::before     { animation-range: 5% 15%; }
    .stage:nth-child(2) .stage__via { animation-range: 13% 21%; }
    .stage:nth-child(2)::before     { animation-range: 19% 29%; }
    .stage:nth-child(3) .stage__via { animation-range: 27% 35%; }

    .stage:nth-child(1) :is(.stage__name, .stage__who, .stage p) { animation-range: 5% 13%; }
    .stage:nth-child(2) :is(.stage__name, .stage__who, .stage p) { animation-range: 17% 25%; }
    .stage:nth-child(3) :is(.stage__name, .stage__who, .stage p) { animation-range: 31% 39%; }


    .section__head h2 {
      animation: head-rise linear both;
      animation-timeline: view();
      animation-range: 0% 40%;
    }
    @keyframes head-rise { from { translate: 0 1rem; } to { translate: 0 0; } }


    .levels { view-timeline-name: --levels; }
    .levels .ticks li::before {
      animation: level-tick linear both;
      animation-timeline: --levels;
    }
    @keyframes level-tick { from { opacity: 0; scale: 0.3; } to { opacity: 1; scale: 1; } }
    .levels .ticks li:nth-child(1)::before { animation-range: 4% 16%; }
    .levels .ticks li:nth-child(2)::before { animation-range: 6.5% 18.5%; }
    .levels .ticks li:nth-child(3)::before { animation-range: 9% 21%; }
    .levels .ticks li:nth-child(4)::before { animation-range: 11.5% 23.5%; }
    .levels .ticks li:nth-child(5)::before { animation-range: 14% 26%; }
    .levels .ticks li:nth-child(6)::before { animation-range: 16.5% 28.5%; }
    .levels .ticks li:nth-child(7)::before { animation-range: 19% 31%; }
    .levels .ticks li:nth-child(8)::before { animation-range: 21.5% 33.5%; }


    .ampel { view-timeline-name: --ampel; }
    .ampel__dot { scale: 1; transition: none; }
    .ampel__row .ampel__dot {
      animation: ampel-lite linear both;
      animation-timeline: --ampel;
    }
    @keyframes ampel-lite { from { scale: 0; } to { scale: 1; } }
    .ampel__row:nth-child(1) .ampel__dot { animation-range: 5% 14%; }
    .ampel__row:nth-child(2) .ampel__dot { animation-range: 9% 18%; }
    .ampel__row:nth-child(3) .ampel__dot { animation-range: 13% 22%; }
    .ampel__row:nth-child(4) .ampel__dot { animation-range: 17% 26%; }
    .ampel__row:nth-child(5) .ampel__dot { animation-range: 21% 30%; }


    .no-js .ampel__row .ampel__dot { animation: none; }


    .stats { view-timeline-name: --stats; }
    .stat {
      animation: stat-rise linear both;
      animation-timeline: --stats;
    }
    @keyframes stat-rise { from { translate: 0 0.9rem; } to { translate: 0 0; } }
    .stat:nth-child(1) { animation-range: 10% 35%; }
    .stat:nth-child(2) { animation-range: 18% 43%; }
    .stat:nth-child(3) { animation-range: 26% 51%; }
    .stat:nth-child(4) { animation-range: 34% 59%; }


    @keyframes odo-roll { from { translate: 0 0; } }
    .odo::before {
      animation-name: odo-roll;
      animation-fill-mode: both;
      animation-timing-function: cubic-bezier(0.16, 1, 0.3, 1);
      animation-timeline: --stats;
      animation-range: calc(17% + var(--f) * 5%) calc(33% + var(--f) * 5%);
    }
  }
}

/* --------------------------------------------------------------------------
   19. Reduced motion & print
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }

  .kern__item::details-content { transition: none; }

  .odo::before { animation-name: none; }

  .spine__progress { stroke-dashoffset: 0; }

  .spine__arm { stroke-dashoffset: 0; }
  .spine__via { opacity: 1; }
  .spine__arm-group.is-pending .spine__arm { stroke-dashoffset: 0; }
  .spine__arm-group.is-pending .spine__via { opacity: 1; }
  .ampel__dot { scale: 1; }

  .btn:hover, .btn:active,
  .pill:hover, .pill:active,
  .chip:hover, .chip:active,
  .level:hover { translate: none; }
}

@media print {
  :root {
    color-scheme: light;

    --bg: #ffffff;
    --bg-deep: #ffffff;
    --surface: #ffffff;
    --surface-2: #ffffff;

    --hairline: rgba(12, 29, 61, 0.35);
    --control-line: #3f4d64;

    --text: #000000;
    --text-dim: #1c2433;
    --text-faint: #45505f;


    --services: #6b5400;
    --services-bright: #6b5400;
    --security: #005a80;
    --hosting: #34620a;
    --kontakt: #8a3f00;
    --kontakt-bright: #8a3f00;
    --brand-ink: #003a76;
    --ok: #12522b;
    --warn: #6b5400;
    --bad: #96201a;

    --elev-0: none;
    --elev-1: none;
    --elev-2: none;
  }

  [data-accent="neutral"] { --accent: var(--brand); --accent-bright: var(--brand); --on-accent: #ffffff; }

  body { background: #ffffff; color: #000000; }
  body::before { display: none; }


  .logo--dark { display: none; }
  .logo--light { display: block; }

  .spine, .hero__mesh, .site-nav, .section__bg { display: none; }


  .plate {
    --surface: #ffffff;
    --surface-2: #ffffff;
    --hairline: rgba(12, 29, 61, 0.35);
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }
  .plate:not(.level) { box-shadow: none; }


  .kern__item::details-content,
  .kern__item[open]::details-content {
    content-visibility: visible;
    grid-template-rows: 1fr;
  }
  .kern__detail { overflow: visible; }
  .kern__summary::after { display: none; }
}