/* Gomille Digital — main.css
   Konzept: «Technisches Leistungsverzeichnis» (см. DESIGN.md) */

/* ---------- Fonts (lokal, kein CDN) ---------- */
@font-face {
  font-family: "Archivo";
  font-style: normal;
  font-weight: 100 900;
  font-stretch: 62% 125%;
  font-display: swap;
  src: url("../fonts/archivo-var.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../fonts/plexmono-400.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("../fonts/plexmono-500.woff2") format("woff2");
}

/* ---------- Tokens ---------- */
:root {
  --petrol-950: #092a31;
  --petrol-900: #0c343c;
  --petrol-700: #11505c;
  --paper: #f4f6f6;
  --card: #ffffff;
  --ink: #15242b;
  --ink-soft: #46595f;
  --amber: #e2a33b;
  --amber-deep: #8a5a10;
  --line: #d4dcdd;
  --line-dark: rgba(255, 255, 255, 0.14);

  --bg: var(--paper);
  --bg-card: var(--card);
  --tx: var(--ink);
  --tx-soft: var(--ink-soft);
  --accent-tx: var(--amber-deep);
  --link: var(--petrol-700);
  --rule: var(--line);

  --sans: "Archivo", "Avenir Next", "Segoe UI", system-ui, sans-serif;
  --mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;

  --w: 1140px;
  --r: 2px;
  --fs-hero: clamp(2.35rem, 5.2vw, 3.7rem);
  --fs-h2: clamp(1.7rem, 3vw, 2.3rem);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1a1f;
    --bg-card: #10262d;
    --tx: #dde7e9;
    --tx-soft: #9fb3b8;
    --accent-tx: #e2a33b;
    --link: #7fc4ce;
    --rule: #23414a;
  }
}
:root[data-theme="light"] {
  --bg: var(--paper);
  --bg-card: var(--card);
  --tx: var(--ink);
  --tx-soft: var(--ink-soft);
  --accent-tx: var(--amber-deep);
  --link: var(--petrol-700);
  --rule: var(--line);
}
:root[data-theme="dark"] {
  --bg: #0b1a1f;
  --bg-card: #10262d;
  --tx: #dde7e9;
  --tx-soft: #9fb3b8;
  --accent-tx: #e2a33b;
  --link: #7fc4ce;
  --rule: #23414a;
}

/* ---------- Base ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  color-scheme: light dark;
}
:root[data-theme="light"] {
  color-scheme: light;
}
:root[data-theme="dark"] {
  color-scheme: dark;
}
section[id] {
  scroll-margin-top: 24px;
}
a,
button {
  touch-action: manipulation;
  -webkit-tap-highlight-color: rgba(226, 163, 59, 0.25);
}
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--tx);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img,
svg {
  max-width: 100%;
  height: auto;
}
a {
  color: var(--link);
}
:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 2px;
}
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--amber);
  color: var(--petrol-950);
  padding: 0.75rem 1.25rem;
  font-family: var(--mono);
  font-size: 0.875rem;
}
.skip-link:focus {
  left: 0;
}
.wrap {
  max-width: var(--w);
  margin: 0 auto;
  padding: 0 1.5rem;
}
@media (min-width: 768px) {
  .wrap {
    padding: 0 2.5rem;
  }
}

h1,
h2,
h3 {
  text-wrap: balance;
  font-family: var(--sans);
  font-stretch: 118%;
  font-weight: 650;
  line-height: 1.12;
  letter-spacing: -0.01em;
  margin: 0 0 1rem;
}
h1 {
  font-size: var(--fs-hero);
  line-height: 1.05;
}
h2 {
  font-size: var(--fs-h2);
}
h3 {
  font-size: 1.3rem;
}
p {
  margin: 0 0 1rem;
}

.eyebrow {
  font-family: var(--mono);
  font-weight: 500;
  font-size: 0.8125rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-tx);
  margin: 0 0 1rem;
}
.dark .eyebrow,
.band-dark .eyebrow {
  color: var(--amber);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 48px;
  padding: 0.75rem 1.6rem;
  border-radius: var(--r);
  border: 2px solid transparent;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.btn-amber {
  background: var(--amber);
  color: var(--petrol-950);
}
.btn-amber:hover {
  background: #edb85e;
}
.btn-ghost {
  border-color: var(--line-dark);
  color: #fff;
}
.btn-ghost:hover {
  border-color: var(--amber);
  color: var(--amber);
}
.btn-petrol {
  background: var(--petrol-950);
  color: #fff;
}
.btn-petrol:hover {
  background: var(--petrol-700);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .btn-petrol {
    background: var(--amber);
    color: var(--petrol-950);
  }
}
:root[data-theme="dark"] .btn-petrol {
  background: var(--amber);
  color: var(--petrol-950);
}

/* ---------- Header ---------- */
.site-header {
  background: var(--petrol-950);
  color: #fff;
  border-bottom: 1px solid var(--line-dark);
  position: relative;
  z-index: 10;
}
.header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 72px;
}
.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: #fff;
  font-weight: 650;
  font-stretch: 116%;
  font-size: 1.15rem;
  letter-spacing: 0.01em;
  padding: 0.5rem 0;
}
.wordmark .mark {
  flex: none;
}
.wordmark span b {
  font-weight: 650;
}
.wordmark span i {
  font-style: normal;
  font-weight: 380;
  opacity: 0.85;
}
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line-dark);
  border-radius: var(--r);
  color: #fff;
  width: 48px;
  height: 48px;
  cursor: pointer;
  font-size: 1.25rem;
  line-height: 1;
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}
.site-nav a {
  color: #fff;
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.75rem 0;
}
.site-nav a:hover {
  color: var(--amber);
}
.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 0.15rem;
  font-family: var(--mono);
  font-size: 0.8125rem;
  border: 1px solid var(--line-dark);
  border-radius: var(--r);
  padding: 0.2rem;
  margin-left: 0.5rem;
}
.lang-switch a,
.lang-switch strong {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  min-height: 36px;
  padding: 0.25rem 0.5rem;
  text-decoration: none;
  border-radius: 1px;
}
.lang-switch strong {
  background: var(--amber);
  color: var(--petrol-950);
  font-weight: 500;
}
.lang-switch a {
  color: #fff;
}
.lang-switch a:hover {
  color: var(--amber);
}
@media (max-width: 860px) {
  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
  .site-nav {
    display: none;
    position: absolute;
    inset: 100% 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--petrol-900);
    border-bottom: 1px solid var(--line-dark);
    padding: 0.5rem 1.5rem 1rem;
  }
  .site-nav.open {
    display: flex;
  }
  .site-nav a {
    padding: 0.9rem 0.25rem;
    border-bottom: 1px solid var(--line-dark);
  }
  .lang-switch {
    margin: 0.9rem 0 0;
    align-self: flex-start;
  }
  .lang-switch a,
  .lang-switch strong {
    min-height: 44px;
    min-width: 48px;
  }
}

/* ---------- Hero ---------- */
.hero {
  background: var(--petrol-950);
  background-image: linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  color: #fff;
  padding: 4.5rem 0 5rem;
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: 3.5rem;
  align-items: center;
}
.hero p.lede {
  font-size: 1.2rem;
  line-height: 1.55;
  color: #c8d6d9;
  max-width: 34em;
  margin-bottom: 2rem;
}
.hero .cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}
.hero-meta {
  margin-top: 2.5rem;
  font-family: var(--mono);
  font-size: 0.8125rem;
  color: #8fa6ab;
  letter-spacing: 0.04em;
}
.schematic figcaption {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: #8fa6ab;
  margin-top: 0.9rem;
  letter-spacing: 0.03em;
}
.schematic {
  margin: 0;
}
@media (max-width: 1023px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .schematic {
    max-width: 480px;
  }
}

/* Systemskizze — SVG-Animation */
.schematic .wire {
  stroke-dasharray: 600;
  stroke-dashoffset: 600;
  animation: wire-draw 1.4s ease-out forwards;
}
.schematic .wire.w2 {
  animation-delay: 0.3s;
}
.schematic .wire.w3 {
  animation-delay: 0.55s;
}
.schematic .wire.w4 {
  animation-delay: 0.8s;
}
.schematic .node {
  opacity: 0;
  animation: node-in 0.5s ease-out forwards;
}
.schematic .node.n2 {
  animation-delay: 0.25s;
}
.schematic .node.n3 {
  animation-delay: 0.45s;
}
.schematic .node.n4 {
  animation-delay: 0.65s;
}
.schematic .node.n5 {
  animation-delay: 0.85s;
}
.schematic .node.n6 {
  animation-delay: 1.05s;
}
@keyframes wire-draw {
  to {
    stroke-dashoffset: 0;
  }
}
@keyframes node-in {
  to {
    opacity: 1;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .schematic .wire,
  .schematic .node {
    animation: none;
    stroke-dashoffset: 0;
    opacity: 1;
  }
  .reveal {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}

/* Scroll-Reveal (JS setzt .in) */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}
.reveal.in {
  opacity: 1;
  transform: none;
}
.no-js .reveal {
  opacity: 1;
  transform: none;
}

/* ---------- Sections ---------- */
.section {
  padding: 5.5rem 0;
}
@media (max-width: 767px) {
  .section {
    padding: 3.75rem 0;
  }
  .hero {
    padding: 3.25rem 0 3.75rem;
  }
}
.section-head {
  max-width: 44em;
  margin-bottom: 3rem;
}
.section-head p {
  color: var(--tx-soft);
  font-size: 1.1rem;
}

/* Leistungsverzeichnis */
.lv {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 2px solid var(--tx);
}
.lv li {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 1.5rem;
  padding: 2rem 0 2.25rem;
  border-bottom: 1px solid var(--rule);
}
.lv .pos {
  font-family: var(--mono);
  font-weight: 500;
  font-size: 0.9375rem;
  color: var(--accent-tx);
  padding-top: 0.35rem;
}
.lv h3 {
  margin-bottom: 0.5rem;
}
.lv p {
  color: var(--tx-soft);
  max-width: 52em;
  margin-bottom: 1rem;
}
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.tags li {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.02em;
  color: var(--tx-soft);
  border: 1px solid var(--rule);
  border-radius: var(--r);
  padding: 0.3rem 0.6rem;
}
@media (max-width: 640px) {
  .lv li {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }
}

/* Arbeitsweise (dunkles Band) */
.band-dark {
  background: var(--petrol-950);
  color: #fff;
}
.band-dark h2 {
  color: #fff;
}
.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 2.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}
.steps li {
  border-top: 2px solid var(--amber);
  padding-top: 1.25rem;
}
.steps .step-no {
  font-family: var(--mono);
  font-weight: 500;
  font-size: 0.8125rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber);
  display: block;
  margin-bottom: 0.6rem;
}
.steps h3 {
  color: #fff;
  font-size: 1.2rem;
}
.steps p {
  color: #c8d6d9;
  font-size: 0.98rem;
  margin: 0;
}
@media (max-width: 860px) {
  .steps {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }
}

/* Über uns */
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: 3rem;
  align-items: start;
}
.about-grid .section-head {
  margin-bottom: 0;
}
.fact-card {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-top: 2px solid var(--amber);
  border-radius: var(--r);
  padding: 1.75rem;
}
.fact-card dl {
  margin: 0;
  display: grid;
  gap: 1.1rem;
}
.fact-card dt {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--tx-soft);
  margin-bottom: 0.2rem;
}
.fact-card dd {
  margin: 0;
  font-size: 0.98rem;
}
@media (max-width: 860px) {
  .about-grid {
    grid-template-columns: 1fr;
  }
}

/* Kontakt */
.contact {
  background: var(--bg-card);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: 3rem;
  align-items: start;
}
.contact-grid address {
  font-style: normal;
  font-family: var(--mono);
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--tx-soft);
  border-left: 2px solid var(--amber);
  padding-left: 1.25rem;
}
.contact-grid address a {
  color: var(--link);
}
.email-line {
  margin-top: 1.25rem;
  font-size: 0.95rem;
  color: var(--tx-soft);
}
@media (max-width: 860px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--petrol-950);
  color: #c8d6d9;
  padding: 3rem 0;
  font-size: 0.9rem;
}
.footer-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  justify-content: space-between;
  align-items: flex-start;
}
.site-footer .wordmark {
  font-size: 1rem;
}
.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
}
.site-footer a {
  color: #c8d6d9;
  text-decoration: none;
  padding: 0.5rem 0;
  display: inline-block;
}
.site-footer a:hover {
  color: var(--amber);
}
.footer-legal {
  width: 100%;
  border-top: 1px solid var(--line-dark);
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  color: #8fa6ab;
}

/* ---------- Rechtstexte ---------- */
.legal-main {
  max-width: 780px;
  margin: 0 auto;
  padding: 4rem 1.5rem 5rem;
}
.legal-main h1 {
  font-size: clamp(1.9rem, 4vw, 2.6rem);
}
.legal-main h2 {
  font-size: 1.35rem;
  margin-top: 2.5rem;
}
.legal-main h3 {
  font-size: 1.05rem;
  margin-top: 1.75rem;
}
.legal-main p,
.legal-main li {
  color: var(--tx-soft);
}
.legal-main .legal-meta {
  font-family: var(--mono);
  font-size: 0.8125rem;
  color: var(--tx-soft);
}
.legal-main address {
  font-style: normal;
  line-height: 1.8;
  border-left: 2px solid var(--amber);
  padding-left: 1.25rem;
  color: var(--tx);
  margin-bottom: 1rem;
}