/* ==========================================================================
   Self-hosted fonts — no third-party requests, no visitor IPs sent anywhere.
   Files live in /fonts/. If a file is missing the browser falls back to a
   system font: the site still works, it just looks plainer.
   ========================================================================== */

@font-face {
  font-family: "Space Grotesk";
  src: url("fonts/space-grotesk-500.woff2") format("woff2");
  font-weight: 500; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "Space Grotesk";
  src: url("fonts/space-grotesk-600.woff2") format("woff2");
  font-weight: 600; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "Space Grotesk";
  src: url("fonts/space-grotesk-700.woff2") format("woff2");
  font-weight: 700; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "IBM Plex Sans";
  src: url("fonts/plex-sans-400.woff2") format("woff2");
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "IBM Plex Sans";
  src: url("fonts/plex-sans-600.woff2") format("woff2");
  font-weight: 600; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("fonts/plex-mono-400.woff2") format("woff2");
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("fonts/plex-mono-500.woff2") format("woff2");
  font-weight: 500; font-style: normal; font-display: swap;
}

/* ==========================================================================
   Eislektronic — design tokens
   Palette inspired by the Éislek (Oesling) hill country of northern
   Luxembourg, where the business is based — contour lines that double
   as circuit traces, a quiet green-on-warm-white palette.
   ========================================================================== */

:root {
  --bg: #F3F4EF;
  --bg-alt: #E7EBE4;
  --panel: #FFFFFF;
  --ink: #1B241F;
  --ink-soft: #4C5750;
  --ink-faint: #8A928B;
  --accent: #2F8F6E;
  --accent-dark: #1F6B51;
  --accent-soft: #C7DCD1;
  --line: #D7DDD3;

  --font-display: "Space Grotesk", "Helvetica Neue", sans-serif;
  --font-body: "IBM Plex Sans", "Helvetica Neue", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;

  --step-0: clamp(1rem, 0.95rem + 0.2vw, 1.05rem);
  --step-1: clamp(1.15rem, 1.05rem + 0.4vw, 1.3rem);
  --step-2: clamp(1.5rem, 1.3rem + 0.8vw, 1.9rem);
  --step-3: clamp(2rem, 1.6rem + 1.6vw, 2.8rem);
  --step-4: clamp(2.6rem, 2rem + 2.6vw, 4rem);

  --gutter: clamp(1.25rem, 4vw, 3rem);
  --maxw: 1120px;
  --radius: 3px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--font-display);
  color: var(--ink);
  line-height: 1.1;
  margin: 0 0 0.5em;
  letter-spacing: -0.01em;
}

h1 { font-size: var(--step-4); font-weight: 700; }
h2 { font-size: var(--step-3); font-weight: 700; }
h3 { font-size: var(--step-2); font-weight: 500; }

p { margin: 0 0 1.1em; color: var(--ink-soft); max-width: 60ch; }

a { color: var(--accent-dark); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--accent-dark);
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  margin-bottom: 0.9em;
}
.eyebrow::before {
  content: "";
  width: 7px; height: 7px;
  background: var(--accent);
  border-radius: 50%;
  display: inline-block;
}

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* ---------- Nav ---------- */
header.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(243, 244, 239, 0.88);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 1.1rem var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5em;
  letter-spacing: -0.01em;
}
.logo svg { flex-shrink: 0; }

.nav-links {
  display: flex;
  gap: clamp(1.2rem, 3vw, 2.2rem);
  list-style: none;
  margin: 0; padding: 0;
}
.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  text-decoration: none;
  color: var(--ink-soft);
  padding-bottom: 3px;
  border-bottom: 1px solid transparent;
  transition: color 0.15s, border-color 0.15s;
}
.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--ink);
  border-color: var(--accent);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  width: 40px; height: 40px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  display: block;
  width: 18px; height: 1.5px;
  background: var(--ink);
  position: relative;
  transition: transform 0.2s;
}
.nav-toggle span::before { position: absolute; top: -6px; }
.nav-toggle span::after { position: absolute; top: 6px; }

@media (max-width: 720px) {
  .nav-toggle { display: flex; }
  .nav-links {
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--panel);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    padding: 1.2rem var(--gutter);
    gap: 1rem;
    display: none;
  }
  .nav-links.open { display: flex; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  text-decoration: none;
  padding: 0.85em 1.5em;
  border-radius: 999px;
  border: 1px solid var(--ink);
  color: var(--ink);
  background: transparent;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.btn:hover { background: var(--ink); color: var(--bg); }
.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: var(--accent-dark); border-color: var(--accent-dark); }
.btn svg { width: 14px; height: 14px; }

/* ---------- Hero / contour signature ---------- */
.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(3.5rem, 10vw, 7rem) 0 clamp(2.5rem, 8vw, 5rem);
}
.contour {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  z-index: 0;
  opacity: 0.55;
}
.hero .wrap { position: relative; z-index: 1; }
.hero h1 { max-width: 15ch; }
.hero-lede { font-size: var(--step-1); max-width: 46ch; }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-top: 1.8rem; }

.divider {
  width: 100%;
  height: 44px;
  display: block;
  color: var(--line);
}

/* ---------- Sections ---------- */
section { padding: clamp(2.5rem, 7vw, 4.5rem) 0; }
.section-alt { background: var(--bg-alt); }

.section-head { max-width: 60ch; margin-bottom: 2.5rem; }

.grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.8rem;
}
.card h3 { font-size: 1.15rem; margin-bottom: 0.4em; }
.card p { margin-bottom: 0; font-size: 0.95rem; }
.card .tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent-dark);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: 0.8rem;
}

.stat-row {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(2rem, 6vw, 4rem);
  margin-top: 2rem;
}
.hero .stat-row {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--line);
}
.stat b {
  display: block;
  font-family: var(--font-display);
  font-size: var(--step-2);
  color: var(--ink);
}
.stat span {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-faint);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ---------- CTA band ---------- */
.cta-band {
  background: var(--ink);
  color: var(--bg);
  border-radius: var(--radius);
  padding: clamp(2.2rem, 6vw, 3.5rem);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}
.cta-band h2 { color: #fff; font-size: var(--step-2); margin: 0; max-width: 20ch; }
.cta-band p { color: var(--accent-soft); margin: 0.4em 0 0; }
.cta-band .btn { border-color: var(--accent-soft); color: #fff; }
.cta-band .btn:hover { background: var(--accent-soft); color: var(--ink); }

/* ---------- Footer ---------- */
footer.site-footer {
  border-top: 1px solid var(--line);
  padding: 2.5rem 0;
}
.footer-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 2rem;
}
.footer-grid h4 {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-faint);
  margin: 0 0 0.8em;
}
.footer-grid a, .footer-grid p { color: var(--ink-soft); text-decoration: none; font-size: 0.92rem; margin: 0 0 0.4em; }
.footer-bottom {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-faint);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* ---------- Utility page header (non-home) ---------- */
.page-header {
  padding: clamp(2.5rem, 7vw, 4rem) 0 clamp(1.5rem, 4vw, 2rem);
  border-bottom: 1px solid var(--line);
}
.page-header h1 { font-size: var(--step-3); max-width: 20ch; }

/* ---------- Contact form ---------- */
.form-grid {
  display: grid;
  gap: 1.1rem;
  max-width: 560px;
}
label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  display: block;
  margin-bottom: 0.4em;
}
input, textarea, select {
  width: 100%;
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 0.75em 0.9em;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  color: var(--ink);
}
input:focus, textarea:focus, select:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}
textarea { resize: vertical; min-height: 130px; }

/* Visible keyboard focus everywhere */
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.contact-detail {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 1.4rem;
}
.contact-detail svg { flex-shrink: 0; margin-top: 3px; color: var(--accent-dark); }
.contact-detail strong { display: block; font-size: 0.95rem; }
.contact-detail span { color: var(--ink-soft); font-size: 0.92rem; }

@media (max-width: 720px) {
  .cta-band { flex-direction: column; align-items: flex-start; }
}

.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(2rem, 6vw, 4rem);
  align-items: start;
}
.form-submit { justify-self: flex-start; }

@media (max-width: 780px) {
  .contact-grid { grid-template-columns: 1fr; }
}

/* ---------- Language switcher ---------- */
.lang-switch {
  display: flex;
  gap: 0.25rem;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-left: 0.5rem;
  padding-left: 0.9rem;
  border-left: 1px solid var(--line);
}
.lang-switch a {
  text-decoration: none;
  color: var(--ink-faint);
  padding: 0.2em 0.35em;
  border-radius: 2px;
}
.lang-switch a[aria-current="true"] { color: var(--ink); font-weight: 500; }
.lang-switch a:hover { color: var(--accent-dark); }

@media (max-width: 720px) {
  .lang-switch { border-left: none; padding-left: 0; margin-left: 0; margin-top: 0.5rem; }
}

/* ---------- Mobile service highlight ---------- */
.mobile-band {
  background: var(--accent-dark);
  color: #fff;
  border-radius: var(--radius);
  padding: clamp(2rem, 5vw, 3rem);
}
.mobile-band h2 { color: #fff; }
.mobile-band p { color: var(--accent-soft); }
.mobile-band .steps { border-color: rgba(255,255,255,0.22); }
.mobile-band .step b { color: #fff; }
.mobile-band .step span { color: var(--accent-soft); }
.mobile-band .step .num { color: rgba(255,255,255,0.5); }

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--line);
}
.step .num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--ink-faint);
  display: block;
  margin-bottom: 0.6rem;
}
.step b {
  font-family: var(--font-display);
  font-size: 1.05rem;
  display: block;
  margin-bottom: 0.3rem;
}
.step span { font-size: 0.92rem; color: var(--ink-soft); line-height: 1.5; }

/* ---------- Portrait ---------- */
.about-intro {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  align-items: start;
  margin-bottom: 2.5rem;
}
.about-intro img {
  width: 100%;
  border-radius: var(--radius);
  display: block;
  border: 1px solid var(--line);
}
@media (max-width: 640px) {
  .about-intro { grid-template-columns: 1fr; }
  .about-intro img { max-width: 180px; }
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: var(--accent-soft);
  color: var(--accent-dark);
  padding: 0.45em 0.9em;
  border-radius: 999px;
  margin-bottom: 1.2rem;
}

/* Portrait not yet supplied — collapse the column gracefully */
.about-intro.no-photo { grid-template-columns: 1fr; }
.about-intro.no-photo img { display: none; }

/* ---------- Portrait figure ---------- */
.about-intro { grid-template-columns: 240px 1fr; }
.portrait { margin: 0; }
.portrait img {
  width: 100%;
  display: block;
  border-radius: var(--radius);
  border: 1px solid var(--line);
}
.portrait figcaption {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink);
  margin-top: 0.7rem;
  line-height: 1.5;
}
.portrait figcaption span {
  color: var(--ink-faint);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.72rem;
}
.about-intro.no-photo .portrait { display: none; }
@media (max-width: 640px) {
  .about-intro { grid-template-columns: 1fr; }
  .portrait { max-width: 200px; }
}

/* ---------- Legal / policy pages ---------- */
.legal-body { max-width: 70ch; }
.legal-body h2 {
  font-size: var(--step-2);
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
}
.legal-body h2:first-of-type { border-top: none; padding-top: 0; margin-top: 1rem; }
.legal-body h3 { font-size: 1.1rem; margin-top: 1.6rem; }
.legal-body dl { margin: 0 0 1.2em; }
.legal-body dt {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-faint);
  margin-top: 0.9em;
}
.legal-body dd { margin: 0.15em 0 0; color: var(--ink); }
.legal-body ul { padding-left: 1.2em; color: var(--ink-soft); }
.legal-body li { margin-bottom: 0.45em; }
.legal-updated {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-faint);
  margin-top: 3rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--line);
}
.todo {
  background: #FFE9A8;
  color: #6B4E00;
  padding: 0.1em 0.4em;
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 0.85em;
  font-weight: 500;
}

/* ---------- Weight pinning (only shipped weights are referenced) ---------- */
strong { font-weight: 600; }
.stat b, .step b, .portrait figcaption { font-weight: 700; }
.legal-body dd strong { font-weight: 600; }