/* =========================================================
   Lokal gehostete Schriftarten (statt Google Fonts CDN)
   ========================================================= */
@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: 'Inter';
  src: url('../fonts/inter-400.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Inter';
  src: url('../fonts/inter-500.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Inter';
  src: url('../fonts/inter-600.woff2') format('woff2');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'JetBrains Mono';
  src: url('../fonts/jetbrains-mono-400.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'JetBrains Mono';
  src: url('../fonts/jetbrains-mono-500.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

/* =========================================================
   Larconisa Solutions — Stylesheet
   Design tokens
   ========================================================= */
:root {
  /* Color */
  --color-bg:          #F6F7F9;
  --color-bg-alt:       #FFFFFF;
  --color-ink:          #14202B;
  --color-ink-soft:     #51606B;
  --color-accent:       #33606F;
  --color-accent-soft:  #DDE9EA;
  --color-line:         #E0E4E7;
  --color-highlight:    #B8862E;
  --color-sky:          #4FA6D1;
  --color-placeholder:  #A8B3B9;

  /* Type */
  --font-display: 'Space Grotesk', 'Segoe UI', Helvetica, Arial, sans-serif;
  --font-body:    'Inter', 'Segoe UI', Helvetica, Arial, sans-serif;
  --font-mono:    'JetBrains Mono', 'Consolas', monospace;

  /* Layout */
  --max-width: 1120px;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 6.5rem;
  --radius: 6px;
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-ink);
  background-color: var(--color-bg);
  background-image:
    linear-gradient(rgba(246, 247, 249, 0.88), rgba(246, 247, 249, 0.88)),
    url('../img/background-sand.jpg');
  background-size: cover;
  background-position: center top;
  background-repeat: no-repeat;
  background-attachment: fixed;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* background-attachment: fixed is unreliable/heavy on mobile browsers,
   so it simply scrolls with the page below this breakpoint */
@media (max-width: 720px) {
  body { background-attachment: scroll; }
}

h1, h2, h3 { font-family: var(--font-display); margin: 0; letter-spacing: -0.01em; }

a { color: inherit; }

img { max-width: 100%; display: block; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-3);
}

/* Focus visibility */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

/* =========================================================
   Ruler divider — signature element
   A thin measurement line with tick marks, echoing both the
   percentile charts of the scientific work and the precision
   of native app engineering.
   ========================================================= */
.ruler {
  width: 100%;
  height: 18px;
  display: block;
  color: var(--color-line);
}
.ruler .tick-major { stroke: var(--color-line); }
.ruler .tick-minor { stroke: var(--color-line); opacity: 0.6; }
.ruler .tick-accent { stroke: var(--color-accent); }

/* =========================================================
   Header
   ========================================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(246, 247, 249, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--color-line);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2) var(--space-3);
  max-width: var(--max-width);
  margin: 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.brand-logo {
  height: 84px;
  width: auto;
  display: block;
}

.brand .brand-name {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: normal;
  color: var(--color-ink-soft);
  line-height: 1;
}

@media (max-width: 720px) {
  .brand-logo { height: 68px; }
}

.nav-links {
  display: flex;
  gap: var(--space-4);
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  text-decoration: none;
  font-size: 0.95rem;
  color: var(--color-ink-soft);
  transition: color 0.15s ease;
}
.nav-links a:hover { color: var(--color-ink); }
.nav-links a.active {
  color: var(--color-ink);
  font-weight: 600;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-1);
  color: var(--color-ink);
}
.nav-toggle svg { display: block; }

/* =========================================================
   Hero
   ========================================================= */
.hero {
  padding: var(--space-6) 0 var(--space-5);
}
.hero .container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-5);
  align-items: center;
}
.hero h1 {
  font-size: clamp(2.1rem, 4vw, 3.1rem);
  line-height: 1.12;
  margin-top: var(--space-2);
}
.hero p.lede {
  margin-top: var(--space-3);
  font-size: 1.1rem;
  color: var(--color-ink-soft);
  max-width: 46ch;
}
.hero-actions {
  margin-top: var(--space-4);
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: transform 0.15s ease, background 0.15s ease, border-color .15s ease;
  border: 1px solid transparent;
}
.btn-primary { background: var(--color-ink); color: var(--color-bg-alt); }
.btn-primary:hover { background: var(--color-accent); }
.btn-ghost { border-color: var(--color-line); color: var(--color-ink); }
.btn-ghost:hover { border-color: var(--color-accent); color: var(--color-accent); }

.hero-figure { position: relative; }
.hero-figure svg { width: 100%; height: auto; }

/* =========================================================
   Page hero — simple text intro used at the top of subpages
   ========================================================= */
.page-hero { padding: var(--space-6) 0 var(--space-4); }
.page-hero h1 {
  font-size: clamp(1.9rem, 3.6vw, 2.6rem);
  margin-top: var(--space-2);
  max-width: 24ch;
}
.page-hero .lede {
  margin-top: var(--space-2);
  font-size: 1.05rem;
  color: var(--color-ink-soft);
  max-width: 56ch;
}

/* =========================================================
   CTA band — closing call to action, links to Kontakt
   ========================================================= */
.cta-band { padding: var(--space-5) 0 var(--space-6); }
.cta-band-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: var(--space-4);
}
.cta-band-inner h2 { font-size: 1.4rem; margin-top: var(--space-1); }
.cta-band-inner p { color: var(--color-ink-soft); margin-top: var(--space-1); }

/* =========================================================
   Sections
   ========================================================= */
section { padding: var(--space-5) 0; }
.section-head {
  max-width: 60ch;
  margin-bottom: var(--space-4);
}
.section-head h2 {
  font-size: clamp(1.6rem, 2.6vw, 2.1rem);
  margin-top: var(--space-1);
}
.section-head p { color: var(--color-ink-soft); margin-top: var(--space-2); }

/* Services */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}
.service-card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: var(--space-4);
}
.service-card .icon {
  width: 40px; height: 40px;
  color: var(--color-accent);
  margin-bottom: var(--space-2);
}
.service-card h3 { font-size: 1.2rem; }
.service-card p { color: var(--color-ink-soft); margin-top: var(--space-1); font-size: 0.97rem; }
.service-card ul {
  margin: var(--space-2) 0 0;
  padding-left: 1.1rem;
  color: var(--color-ink-soft);
  font-size: 0.92rem;
}
.service-card li + li { margin-top: 0.3rem; }
.service-card .link {
  display: inline-block;
  margin-top: var(--space-2);
  font-size: 0.9rem;
  color: var(--color-accent);
  text-decoration: none;
  font-weight: 500;
}
.service-card .link:hover { text-decoration: underline; }

.teaser-grid { grid-template-columns: repeat(3, 1fr); }

/* Projects */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
}
.project-card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.project-card .thumb {
  aspect-ratio: 4 / 3;
  background: var(--color-accent-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
}
.project-card .body { padding: var(--space-3); flex: 1; display: flex; flex-direction: column; }
.project-card .tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
}
.project-card h3 { font-size: 1.05rem; margin-top: 0.4rem; }
.project-card p { color: var(--color-ink-soft); font-size: 0.92rem; margin-top: 0.4rem; flex: 1; }
.project-card .link {
  margin-top: var(--space-2);
  font-size: 0.88rem;
  color: var(--color-accent);
  text-decoration: none;
  font-weight: 500;
}
.project-card .link:hover { text-decoration: underline; }

.project-card.is-placeholder {
  border-style: dashed;
  background: transparent;
}
.project-card.is-placeholder .thumb {
  background: transparent;
  border: 1px dashed var(--color-line);
  color: var(--color-placeholder);
}
.project-card.is-placeholder .tag,
.project-card.is-placeholder h3 { color: var(--color-placeholder); }
.project-card.is-placeholder p { color: var(--color-placeholder); }

/* About */
.about .container {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: var(--space-5);
  align-items: start;
}
.about-figure {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: var(--space-3);
}
.about-figure dl { margin: 0; }
.about-figure dt {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  margin-top: var(--space-2);
}
.about-figure dt:first-child { margin-top: 0; }
.about-figure dd { margin: 0.2rem 0 0; color: var(--color-ink); }

/* Contact */
.contact .container { max-width: 720px; }
.form-row { margin-bottom: var(--space-3); }
.form-row label {
  display: block;
  font-size: 0.88rem;
  font-weight: 500;
  margin-bottom: 0.4rem;
}
.form-row input,
.form-row textarea {
  width: 100%;
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-bg-alt);
  font-family: var(--font-body);
  font-size: 0.97rem;
  color: var(--color-ink);
}
.form-row textarea { resize: vertical; min-height: 140px; }
.form-note { font-size: 0.85rem; color: var(--color-ink-soft); margin-top: var(--space-2); }

/* honeypot field, hidden from real users */
.hp-field { position: absolute; left: -9999px; top: -9999px; }

.alert {
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius);
  margin-bottom: var(--space-3);
  font-size: 0.92rem;
}
.alert-success { background: #E4F1E7; color: #245C36; border: 1px solid #BFDFC7; }
.alert-error { background: #FBE9E7; color: #7A2E22; border: 1px solid #F1C6BE; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--color-line);
  padding: var(--space-4) 0;
  margin-top: var(--space-5);
}
.footer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
  font-size: 0.88rem;
  color: var(--color-ink-soft);
}
.footer-links { display: flex; gap: var(--space-3); list-style: none; padding: 0; margin: 0; }
.footer-links a { text-decoration: none; color: var(--color-ink-soft); }
.footer-links a:hover { color: var(--color-accent); }

/* Legal pages */
.legal { padding: var(--space-5) 0 var(--space-6); }
.legal .container { max-width: 760px; }
.legal h1 { font-size: 1.9rem; }
.legal h2 { font-size: 1.15rem; margin-top: var(--space-4); }
.legal p, .legal li { color: var(--color-ink-soft); }
.legal .todo {
  background: #FBF3DF;
  border: 1px solid #EBD9A6;
  color: #7A5C13;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius);
  font-size: 0.9rem;
  margin: var(--space-2) 0;
}

/* =========================================================
   Mobile version
   ========================================================= */
@media (max-width: 880px) {
  .hero .container { grid-template-columns: 1fr; }
  .hero-figure { order: -1; max-width: 340px; margin: 0 auto; }
  .services-grid,
  .teaser-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .about .container { grid-template-columns: 1fr; }
  .cta-band-inner { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 720px) {
  .nav-links { display: none; }
  .nav-toggle { display: inline-flex; }

  .nav-links.is-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg-alt);
    border-bottom: 1px solid var(--color-line);
    padding: var(--space-2) var(--space-3) var(--space-3);
    gap: var(--space-2);
  }

  section { padding: var(--space-4) 0; }
  .hero { padding: var(--space-4) 0 var(--space-3); }
}