/* ==========================================================================
   IoT42 — Stylesheet
   Umsetzung des IoT42 Design Systems v0.1
   Signal Blue · Cool Graphite · Signal Amber · IBM Plex
   Design-Tokens: siehe tokens.css
   ========================================================================== */

/* ── Schriften (self-hosted, DSGVO-konform) ──────────────────────────────── */
@font-face {
  font-family: "IBM Plex Sans"; font-style: normal; font-weight: 400; font-display: swap;
  src: url("/assets/fonts/ibm-plex-sans-latin-400-normal.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Sans"; font-style: normal; font-weight: 500; font-display: swap;
  src: url("/assets/fonts/ibm-plex-sans-latin-500-normal.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Sans"; font-style: normal; font-weight: 600; font-display: swap;
  src: url("/assets/fonts/ibm-plex-sans-latin-600-normal.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Sans"; font-style: normal; font-weight: 700; font-display: swap;
  src: url("/assets/fonts/ibm-plex-sans-latin-700-normal.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono"; font-style: normal; font-weight: 400; font-display: swap;
  src: url("/assets/fonts/ibm-plex-mono-latin-400-normal.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono"; font-style: normal; font-weight: 500; font-display: swap;
  src: url("/assets/fonts/ibm-plex-mono-latin-500-normal.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono"; font-style: normal; font-weight: 700; font-display: swap;
  src: url("/assets/fonts/ibm-plex-mono-latin-700-normal.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Serif"; font-style: normal; font-weight: 400; font-display: swap;
  src: url("/assets/fonts/ibm-plex-serif-latin-400-normal.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Serif"; font-style: italic; font-weight: 400; font-display: swap;
  src: url("/assets/fonts/ibm-plex-serif-latin-400-italic.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Serif"; font-style: normal; font-weight: 500; font-display: swap;
  src: url("/assets/fonts/ibm-plex-serif-latin-500-normal.woff2") format("woff2");
}

/* ── Reset ───────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-loose);
  color: var(--color-ink-700);
  background: var(--color-ink-0);
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "kern";
}
img, svg { max-width: 100%; height: auto; display: block; }

/* ── Typografie ──────────────────────────────────────────────────────────── */
h1, h2, h3, h4 {
  font-family: var(--font-sans);
  font-weight: 500;
  color: var(--color-ink-900);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  margin: 0 0 0.5em;
}
h1 { font-size: clamp(2.1rem, 1.35rem + 2.6vw, 3rem); }
h2 { font-size: clamp(1.55rem, 1.15rem + 1.5vw, 2.18rem); margin-bottom: 0.55em; }
h3 { font-size: 1.32rem; letter-spacing: -0.012em; margin-top: 1.7em; }
h4 { font-size: 1.08rem; }
p  { margin: 0 0 1.1em; }
strong { font-weight: 600; color: var(--color-ink-900); }
em { font-style: italic; }
a  { color: var(--color-primary-600); }
code {
  font-family: var(--font-mono); font-size: 0.9em;
  background: var(--color-ink-100); padding: 0.12em 0.38em; border-radius: var(--radius-sm);
}

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 200;
  background: var(--color-primary-600); color: #fff;
  padding: 12px 18px; font-weight: 500;
}
.skip-link:focus { left: 0; }
:focus-visible { outline: none; box-shadow: var(--shadow-focus); border-radius: var(--radius-sm); }

/* ── Wortmarke ───────────────────────────────────────────────────────────── */
.brand { display: inline-flex; align-items: baseline; text-decoration: none; }
.brand-name {
  font-family: var(--font-sans); font-weight: 500;
  font-size: 1.4rem; letter-spacing: -0.02em; color: var(--color-ink-900);
  line-height: 1;
}
.brand-num {
  font-family: var(--font-mono); font-weight: 700;
  color: var(--color-primary-500); letter-spacing: -0.04em;
  font-feature-settings: "tnum";
}

/* ==========================================================================
   Header / Navigation
   ========================================================================== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: saturate(150%) blur(8px);
  border-bottom: var(--border-hairline);
}
.site-header.scrolled { box-shadow: var(--shadow-sm); }
.container { width: 100%; max-width: var(--container-lg); margin-inline: auto; padding-inline: 24px; }
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; min-height: 72px;
}

.primary-nav { display: flex; align-items: center; gap: 28px; }
.nav-list { display: flex; align-items: center; gap: 2px; list-style: none; margin: 0; padding: 0; }
.nav-list > li { position: relative; }
.nav-list a {
  display: inline-flex; align-items: center; gap: 6px;
  text-decoration: none; color: var(--color-ink-700);
  font-weight: 400; font-size: 0.95rem;
  padding: 8px 12px; border-radius: var(--radius-md); white-space: nowrap;
}
.nav-list a:hover { color: var(--color-primary-600); background: var(--color-primary-50); }
.nav-list a[aria-current="page"] { color: var(--color-primary-600); font-weight: 500; }
.nav-list .has-sub.active > a { color: var(--color-primary-600); }

.caret {
  width: 6px; height: 6px;
  border-right: 1.6px solid currentColor; border-bottom: 1.6px solid currentColor;
  transform: rotate(45deg) translateY(-1px);
}
.submenu {
  list-style: none; margin: 0; padding: 6px;
  position: absolute; top: calc(100% + 6px); left: 0; min-width: 290px;
  background: #fff; border: var(--border-hairline); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  opacity: 0; visibility: hidden; transform: translateY(5px);
  transition: opacity var(--duration-base) var(--ease-out),
              transform var(--duration-base) var(--ease-out), visibility var(--duration-base);
}
.has-sub:hover .submenu, .has-sub:focus-within .submenu {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.submenu a { display: block; padding: 9px 12px; }

.lang-switch {
  display: flex; align-items: center; gap: 5px;
  font-family: var(--font-mono); font-size: 0.8rem;
  padding-left: 22px; border-left: var(--border-hairline);
}
.lang-switch a { text-decoration: none; color: var(--color-ink-400); padding: 4px 4px; }
.lang-switch a[aria-current="true"] { color: var(--color-ink-900); font-weight: 500; }
.lang-switch a:hover { color: var(--color-primary-600); }
.lang-switch span { color: var(--color-ink-300); }

.nav-toggle {
  display: none; align-items: center; gap: 9px;
  background: var(--color-ink-0); border: var(--border-strong); color: var(--color-ink-900);
  font: inherit; font-weight: 500; font-size: 0.9rem;
  padding: 9px 14px; border-radius: var(--radius-md); cursor: pointer;
}
.nav-toggle-bars { display: inline-flex; flex-direction: column; gap: 4px; }
.nav-toggle-bars span {
  width: 17px; height: 2px; background: var(--color-ink-900); border-radius: 1px;
  transition: transform var(--duration-base) var(--ease-out), opacity var(--duration-base) var(--ease-out);
}
body.nav-open .nav-toggle-bars span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
body.nav-open .nav-toggle-bars span:nth-child(2) { opacity: 0; }
body.nav-open .nav-toggle-bars span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ==========================================================================
   Layout-Baender — Voll-Breite-Hintergrund, Inhalt linksbuendig im Raster
   ========================================================================== */
main { display: block; }
.hero, .section, .cta {
  padding-inline: max(24px, calc((100% - var(--container-lg)) / 2));
}

/* ---- Hero · Startseite (dunkel, Network-Grid) ---- */
.hero {
  padding-block: clamp(56px, 7vw, 104px);
  background-color: var(--color-primary-900);
  background-image: url("/assets/img/hero-network.svg?v=20260523165953");
  background-size: cover;
  background-position: center;
  color: var(--color-primary-100);
}
.hero > * { max-width: 760px; }
.hero h1 { color: #fff; font-size: clamp(2.3rem, 1.5rem + 3vw, 3.6rem); margin-bottom: 0.4em; }
.hero p, .hero .lead { color: var(--color-primary-100); font-size: var(--text-md); }
.hero-text, .hero-visual { min-width: 0; }
.hero-visual { margin-top: 32px; }
.hero-visual p { margin: 0; }

/* ---- Hero · Unterseiten (hell, kompakt) ---- */
.hero.compact {
  background: var(--color-ink-0);
  background-image: none;
  border-bottom: var(--border-hairline);
  color: var(--color-ink-700);
  padding-block: clamp(44px, 5vw, 76px);
}
.hero.compact > * { max-width: 760px; }
.hero.compact h1 { color: var(--color-ink-900); }
.hero.compact p, .hero.compact .lead { color: var(--color-ink-600); font-size: var(--text-md); }

/* ---- Eyebrow / Kicker (Mono, Versalien) ---- */
.eyebrow {
  display: block;
  font-family: var(--font-mono); font-weight: 500;
  font-size: var(--text-xs); letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--color-primary-600);
  margin: 0 0 1em;
}
.hero .eyebrow { color: var(--color-amber-400); }
.lead { font-size: var(--text-lg); line-height: var(--leading-snug); }

/* ---- Section ---- */
.section { padding-block: clamp(48px, 6vw, 88px); }
.section > * { max-width: 760px; }
.section > .cards,
.section > .table-wrap,
.section > .contact-grid,
.section > .wide { max-width: 100%; }
.section.tint  { background: var(--color-ink-50); }
.section.tint2 { background: var(--color-primary-50); }
.section.center { text-align: center; }
.section.center > * { margin-inline: auto; }
.section.center .actions { justify-content: center; }
.section.dark {
  background-color: var(--color-primary-900);
  color: var(--color-primary-100);
}
.section.dark h2, .section.dark h3 { color: #fff; }
.section.dark .eyebrow { color: var(--color-amber-400); }
.section + .section { padding-top: 0; }
.section.tint + .section.tint,
.section.dark + .section.dark { padding-top: clamp(48px, 6vw, 88px); }

/* ---- CTA-Band (tief, Signal Blue) ---- */
.cta {
  padding-block: clamp(48px, 5vw, 76px);
  background-color: var(--color-primary-900);
  background-image: url("/assets/img/hero-network.svg?v=20260523165953");
  background-size: cover; background-position: center;
  color: var(--color-primary-100);
}
.cta > * { max-width: 720px; }
.cta h2 { color: #fff; }
.cta p  { color: var(--color-primary-100); }

/* ==========================================================================
   Inhalts-Typografie
   ========================================================================== */
.section h2 { margin-top: 0; }
.section h3:first-child { margin-top: 0; }
main a { color: var(--color-primary-600); text-underline-offset: 3px; }
main a:hover { color: var(--color-primary-500); }

/* Aufzaehlungen mit technischer Haken-Markierung */
.section ul, .hero ul, .cta ul { list-style: none; padding: 0; margin: 0 0 1.15em; }
.section ul li, .hero ul li, .cta ul li {
  position: relative; padding-left: 28px; margin-bottom: 0.5em;
}
.section ul li::before, .hero ul li::before, .cta ul li::before {
  content: ""; position: absolute; left: 1px; top: 0.4em;
  width: 13px; height: 7px;
  border-left: 2px solid var(--color-primary-500);
  border-bottom: 2px solid var(--color-primary-500);
  transform: rotate(-45deg);
}
.hero ul li::before, .cta ul li::before, .section.dark ul li::before {
  border-color: var(--color-amber-400);
}

.section ol { padding-left: 1.4em; margin: 0 0 1.15em; }
.section ol li { margin-bottom: 0.5em; padding-left: 0.3em; }
.section ol li::marker { font-family: var(--font-mono); color: var(--color-primary-600); font-weight: 500; }

hr { border: 0; border-top: var(--border-hairline); margin: 2.4em 0; }

/* Blockzitate / Pull-Quotes — IBM Plex Serif */
blockquote {
  margin: 0 0 1.4em; padding: 0 0 0 26px;
  border-left: 2px solid var(--color-amber-400);
  font-family: var(--font-serif); font-weight: 400;
  font-size: 1.18rem; line-height: var(--leading-snug);
  color: var(--color-ink-900); letter-spacing: -0.005em;
}
blockquote p { margin-bottom: 0.6em; }
blockquote p:last-child { margin-bottom: 0; }
.attribution {
  font-family: var(--font-sans); font-size: var(--text-sm);
  color: var(--color-ink-500); margin: -0.2em 0 2em;
}
.attribution strong { color: var(--color-ink-900); font-weight: 600; }

/* Hinweis-Box */
.note {
  background: var(--color-ink-0);
  border: var(--border-hairline);
  border-left: 3px solid var(--color-warning);
  border-radius: var(--radius-md);
  padding: 16px 20px; margin: 0 0 1.3em;
}
.note p:last-child { margin-bottom: 0; }

/* Metazeile (Mono) */
.meta {
  font-family: var(--font-mono); font-size: var(--text-sm);
  color: var(--color-ink-500); letter-spacing: 0.01em;
}
.section.dark .meta, .hero .meta { color: var(--color-primary-200); }

/* ==========================================================================
   Karten
   ========================================================================== */
.cards {
  display: grid; gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(252px, 1fr));
}
.cards.cols-2 { grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); }
.card {
  background: var(--color-ink-0);
  border: var(--border-hairline);
  border-radius: var(--radius-lg);
  padding: 24px 24px 22px;
  display: flex; flex-direction: column;
  transition: border-color var(--duration-base) var(--ease-out),
              box-shadow var(--duration-base) var(--ease-out),
              transform var(--duration-base) var(--ease-out);
}
.card:hover {
  border-color: var(--color-ink-300);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.card h3 { margin: 0 0 0.45em; font-size: 1.2rem; }
.card p { color: var(--color-ink-600); font-size: var(--text-sm); line-height: var(--leading-normal); }
.card ul { margin-bottom: 1em; }
.card ul li { font-size: var(--text-sm); }
.card .actions { margin-top: auto; }
.card .num {
  font-family: var(--font-mono); font-size: var(--text-xs);
  color: var(--color-amber-500); letter-spacing: 0.06em;
  margin: 0 0 0.6em;
}

/* ==========================================================================
   Buttons & Aktionen
   ========================================================================== */
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 1.6em 0 0; }
.actions a {
  display: inline-flex; align-items: center; gap: 8px;
  text-decoration: none; font-family: var(--font-sans); font-weight: 500;
  font-size: 0.97rem; letter-spacing: -0.005em;
  padding: 12px 22px; border-radius: var(--radius-md);
  border: 1px solid transparent;
  transition: background var(--duration-fast) var(--ease-out),
              border-color var(--duration-fast) var(--ease-out),
              color var(--duration-fast) var(--ease-out);
}
.actions a:first-child {
  background: var(--color-primary-500); color: #fff; border-color: var(--color-primary-500);
}
.actions a:first-child:hover { background: var(--color-primary-600); border-color: var(--color-primary-600); }
.actions a:not(:first-child) {
  background: transparent; color: var(--color-ink-900); border-color: var(--color-ink-300);
}
.actions a:not(:first-child):hover { border-color: var(--color-ink-500); background: var(--color-ink-50); }

/* Buttons auf dunklem Grund */
.hero:not(.compact) .actions a:first-child,
.cta .actions a:first-child,
.section.dark .actions a:first-child {
  background: #fff; color: var(--color-ink-900); border-color: #fff;
}
.hero:not(.compact) .actions a:first-child:hover,
.cta .actions a:first-child:hover,
.section.dark .actions a:first-child:hover { background: var(--color-primary-100); border-color: var(--color-primary-100); }
.hero:not(.compact) .actions a:not(:first-child),
.cta .actions a:not(:first-child),
.section.dark .actions a:not(:first-child) {
  color: #fff; border-color: rgba(255, 255, 255, 0.42);
}
.hero:not(.compact) .actions a:not(:first-child):hover,
.cta .actions a:not(:first-child):hover,
.section.dark .actions a:not(:first-child):hover {
  border-color: #fff; background: rgba(255, 255, 255, 0.1);
}

/* Pfeil-Links in Karten */
.card .actions { gap: 0; margin-top: auto; padding-top: 4px; }
.card .actions a, a.arrow {
  background: none !important; border: 0 !important; padding: 0 !important;
  color: var(--color-primary-600) !important; font-weight: 500; font-size: 0.92rem;
}
.card .actions a::after, a.arrow::after {
  content: "\2192"; margin-left: 6px; font-family: var(--font-mono);
  transition: transform var(--duration-fast) var(--ease-out);
}
.card .actions a:hover::after, a.arrow:hover::after { transform: translateX(4px); }

/* ==========================================================================
   Tags / technische Chips
   ========================================================================== */
.tags ul {
  list-style: none; padding: 0; margin: 1.8em 0 0;
  display: flex; flex-wrap: wrap; gap: 8px;
}
.tags li {
  font-family: var(--font-mono); font-size: var(--text-xs); font-weight: 500;
  padding: 5px 11px; border-radius: var(--radius-pill);
  letter-spacing: 0.02em; margin: 0;
}
.tags li::before { display: none !important; }
.section .tags li { background: var(--color-ink-100); color: var(--color-ink-700); }
.hero .tags li {
  background: transparent; color: var(--color-primary-100);
  border: 1px solid rgba(167, 199, 234, 0.32);
}

/* ==========================================================================
   Tabellen
   ========================================================================== */
.table-wrap { overflow-x: auto; margin: 0 0 1.5em; -webkit-overflow-scrolling: touch; }
table { border-collapse: collapse; width: 100%; font-size: var(--text-sm); min-width: 580px; }
thead th {
  background: var(--color-primary-800); color: #fff; text-align: left;
  padding: 11px 14px; font-weight: 500; letter-spacing: -0.005em;
}
tbody td { padding: 10px 14px; border-bottom: var(--border-hairline); vertical-align: top; }
tbody tr:nth-child(even) { background: var(--color-ink-50); }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer { background: var(--color-primary-900); color: var(--color-primary-200); margin-top: auto; }
.footer-grid {
  display: grid; grid-template-columns: 1.7fr 1fr 1fr 1fr; gap: 36px;
  padding-block: clamp(48px, 5vw, 68px);
}
.footer-brand-name { font-size: 1.3rem; color: #fff; }
.footer-brand-name .brand-num { color: var(--color-amber-400); }
.foot-tagline { margin: 0.9em 0 1.3em; font-size: var(--text-sm); color: var(--color-primary-200); max-width: 34ch; }
.foot-address { font-style: normal; font-size: var(--text-sm); line-height: var(--leading-loose); color: var(--color-primary-200); }
.foot-address strong { color: #fff; font-weight: 500; }
.foot-address a { color: var(--color-amber-400); text-decoration: none; }
.foot-address a:hover { text-decoration: underline; }
.foot-col h3 {
  color: #fff; font-family: var(--font-mono); font-weight: 500;
  font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.12em;
  margin: 2px 0 14px;
}
.foot-col ul { list-style: none; margin: 0; padding: 0; }
.foot-col li { margin-bottom: 9px; }
.foot-col a { color: var(--color-primary-200); text-decoration: none; font-size: var(--text-sm); }
.foot-col a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.1); padding-block: 18px; }
.footer-bottom p {
  margin: 0; font-family: var(--font-mono); font-size: var(--text-xs);
  color: var(--color-primary-300); letter-spacing: 0.01em;
}

/* ==========================================================================
   Kontaktformular
   ========================================================================== */
.form-card {
  background: var(--color-ink-0); border: var(--border-hairline);
  border-radius: var(--radius-lg); padding: 26px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { margin-bottom: 16px; }
.field label {
  display: block; font-family: var(--font-mono); font-weight: 500;
  font-size: var(--text-xs); letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--color-ink-500); margin-bottom: 7px;
}
.field .req { color: var(--color-primary-500); }
.field input, .field select, .field textarea {
  width: 100%; font-family: var(--font-sans); font-size: 0.97rem; color: var(--color-ink-900);
  padding: 11px 13px; border: 1px solid var(--color-ink-200); border-radius: var(--radius-md);
  background: #fff; transition: border-color var(--duration-fast) var(--ease-out),
                                box-shadow var(--duration-fast) var(--ease-out);
}
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--color-primary-500); outline: none; box-shadow: var(--shadow-focus);
}
.field textarea { min-height: 140px; resize: vertical; }
.field-consent { display: flex; gap: 11px; align-items: flex-start; }
.field-consent input { width: auto; margin-top: 3px; flex-shrink: 0; }
.field-consent label {
  font-family: var(--font-sans); font-weight: 400; text-transform: none;
  letter-spacing: 0; font-size: var(--text-sm); color: var(--color-ink-600);
}
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-note { font-size: var(--text-xs); color: var(--color-ink-400); margin-top: 4px; }
.form-alert { border-radius: var(--radius-md); padding: 14px 18px; margin-bottom: 22px; font-size: 0.95rem; }
.form-alert.error { background: #fbe9e8; border: 1px solid #f1c4c0; color: #9a271c; }
.form-alert.ok    { background: #e3f5ec; border: 1px solid #b4e3c9; color: #0e7a4d; }
.btn-submit {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--color-primary-500); color: #fff;
  font-family: var(--font-sans); font-weight: 500; font-size: 0.97rem;
  border: 1px solid var(--color-primary-500); padding: 13px 28px;
  border-radius: var(--radius-md); cursor: pointer;
  transition: background var(--duration-fast) var(--ease-out);
}
.btn-submit:hover { background: var(--color-primary-600); }

/* zweispaltige Kontaktseite */
.contact-grid { display: grid; grid-template-columns: 1.45fr 1fr; gap: 40px; max-width: 100% !important; }
.contact-grid > * { max-width: none; }
.info-card {
  background: var(--color-ink-50); border: var(--border-hairline);
  border-radius: var(--radius-lg); padding: 24px 26px;
}
.info-card h3 { margin-top: 0; }
.info-card + .info-card { margin-top: 18px; }

/* ── zweispaltige Aufzaehlung ── */
.col-2 ul { column-count: 2; column-gap: 44px; }
.col-2 ul li { break-inside: avoid; }

/* ── Visualisierungen / schematische Diagramme ── */
.viz { margin: 30px 0 10px; }
.viz > div { box-shadow: var(--shadow-lg); }
.viz svg { display: block; }
.section > .viz { max-width: 100%; }
.section.dark .viz > div { box-shadow: none; }

/* ── Hilfsklassen ── */
.center { text-align: center; }
.muted  { color: var(--color-ink-500); }

/* ==========================================================================
   Responsiv
   ========================================================================== */
@media (max-width: 980px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid .foot-brand { grid-column: 1 / -1; }
}
@media (max-width: 860px) {
  .nav-toggle { display: inline-flex; }
  .primary-nav {
    position: fixed; inset: 72px 0 auto 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: #fff; border-bottom: var(--border-hairline);
    box-shadow: var(--shadow-lg);
    padding: 14px 24px 22px; max-height: calc(100vh - 72px); overflow-y: auto;
    transform: translateY(-12px); opacity: 0; visibility: hidden;
    transition: opacity var(--duration-base) var(--ease-out),
                transform var(--duration-base) var(--ease-out), visibility var(--duration-base);
  }
  body.nav-open .primary-nav { transform: translateY(0); opacity: 1; visibility: visible; }
  .nav-list { flex-direction: column; align-items: stretch; gap: 2px; width: 100%; }
  .nav-list a { padding: 12px 10px; font-size: 1.02rem; }
  .nav-list .caret { margin-left: auto; }
  .submenu {
    position: static; opacity: 1; visibility: visible; transform: none;
    box-shadow: none; border: 0; border-left: 2px solid var(--color-ink-100);
    border-radius: 0; margin: 2px 0 8px 10px; padding: 0 0 0 6px; min-width: 0;
  }
  .lang-switch {
    border-left: 0; border-top: var(--border-hairline);
    padding: 14px 10px 4px; margin-top: 8px; font-size: 0.9rem;
  }
  .form-row { grid-template-columns: 1fr; gap: 0; }
  .contact-grid { grid-template-columns: 1fr; gap: 26px; }
}
@media (max-width: 560px) {
  .container { padding-inline: 18px; }
  .hero, .section, .cta { padding-inline: 18px; }
  .actions a { width: 100%; justify-content: center; }
  .card .actions a { width: auto; }
  .col-2 ul { column-count: 1; }
  .form-card { padding: 20px; }
}
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; scroll-behavior: auto !important; }
}