:root {
  --bg: #fafaf9;
  --surface: #ffffff;
  --ink: #0a0a0a;
  --ink-2: #2a2a2a;
  --muted: #6b6b6b;
  --line: #e6e3dd;
  --accent: #c8102e;
  --max: 1120px;
  --radius: 4px;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--mono);
  font-weight: 400;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: var(--ink); text-decoration: none; border-bottom: 1px solid transparent; transition: border-color .15s ease, color .15s ease; }
a:hover { border-bottom-color: var(--ink); }

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

.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 32px;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--line);
}

.logo {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 700; letter-spacing: 0.18em;
  color: var(--ink); border-bottom: none;
}
.logo:hover { color: var(--ink); }
.logo-mark { width: 26px; height: 26px; color: var(--ink); }
.logo-word { font-family: var(--mono); font-weight: 700; font-size: 16px; }
.logo.small .logo-mark { width: 20px; height: 20px; }
.logo.small .logo-word { font-size: 13px; }

.site-nav { display: flex; gap: 22px; }
.site-nav a {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--ink-2);
  padding: 6px 0;
}
.site-nav a:hover { color: var(--ink); border-bottom-color: var(--ink); }

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  margin-left: auto;
  background: transparent;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  color: var(--ink);
  cursor: pointer;
  padding: 0;
}
.nav-toggle:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }
.nav-toggle-icon-close { display: none; }
.nav-toggle[aria-expanded="true"] .nav-toggle-icon-open { display: none; }
.nav-toggle[aria-expanded="true"] .nav-toggle-icon-close { display: inline; }

/* Hero */
.hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: 72px 32px 64px;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 48px;
  align-items: center;
}
.eyebrow {
  font-size: 12px; letter-spacing: 0.16em;
  color: var(--muted); margin: 0 0 18px;
  text-transform: uppercase;
}
.hero-title {
  font-size: clamp(36px, 5.4vw, 64px);
  line-height: 1.05;
  letter-spacing: -0.01em;
  font-weight: 600;
  margin: 0 0 22px;
}
.accent { color: var(--accent); }
.hero-sub {
  font-size: 16px; color: var(--ink-2);
  max-width: 52ch; margin: 0 0 28px;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

.hero-art .hero-svg {
  width: 100%; height: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #0a0a0a;
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 18px;
  font-family: var(--mono);
  font-size: 13px; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase;
  border-radius: var(--radius);
  border: 1px solid var(--ink);
  cursor: pointer;
  transition: background .15s ease, color .15s ease, transform .05s ease;
  border-bottom: 1px solid var(--ink);
}
.btn:hover { transform: translateY(-1px); border-bottom-color: var(--ink); }
.btn-primary { background: var(--ink); color: #fff; }
.btn-primary:hover { background: var(--ink-2); color: #fff; }
.btn-ghost { background: transparent; color: var(--ink); }
.btn-ghost:hover { background: var(--ink); color: #fff; }
.btn:disabled { opacity: .55; cursor: not-allowed; transform: none; }

/* Sections */
section { max-width: var(--max); margin: 0 auto; padding: 64px 32px; }
.section-head { margin-bottom: 28px; }
.section-tag {
  display: inline-block;
  font-size: 12px; letter-spacing: 0.16em;
  color: var(--muted); text-transform: uppercase;
  margin-bottom: 8px;
}
.section-head h2 {
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 600;
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}
.muted { color: var(--muted); }

/* Services */
.grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
}
.card h3 {
  font-size: 14px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0 0 10px;
}
.card p { margin: 0; color: var(--ink-2); font-size: 14px; }

/* Newsletter */
.newsletter { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.form-row {
  display: flex; gap: 10px; flex-wrap: wrap;
  max-width: 520px;
}
.form-row input[type="email"] {
  flex: 1 1 240px;
  padding: 12px 14px;
  border: 1px solid var(--ink);
  background: #fff;
  font-family: var(--mono);
  font-size: 14px;
  border-radius: var(--radius);
}
.form-row input[type="email"]:focus { outline: 2px solid var(--ink); outline-offset: 2px; }

.form-status {
  margin-top: 10px;
  font-size: 13px;
  color: var(--muted);
  min-height: 1.2em;
}
.form-status.ok { color: #0a7a3b; }
.form-status.err { color: #b3261e; }

/* Contact */
.contact-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.field { display: flex; flex-direction: column; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field label {
  font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted);
}
.field input, .field textarea {
  padding: 12px 14px;
  border: 1px solid var(--ink);
  background: #fff;
  font-family: var(--mono);
  font-size: 14px;
  border-radius: var(--radius);
  resize: vertical;
}
.field input:focus, .field textarea:focus { outline: 2px solid var(--ink); outline-offset: 2px; }
.field.actions { display: flex; flex-direction: row; align-items: center; gap: 14px; flex-wrap: wrap; }

/* Imprint */
.imprint-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
}
.imprint-grid h3 {
  font-size: 12px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted);
  margin: 0 0 8px;
}
.imprint-grid p { margin: 0 0 8px; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 24px 32px;
  margin-top: 24px;
}
.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex; justify-content: space-between; align-items: center;
  font-size: 12px;
  letter-spacing: 0.08em;
}

/* Responsive */
@media (max-width: 880px) {
  .hero { grid-template-columns: 1fr; padding-top: 48px; gap: 32px; }
  .grid { grid-template-columns: repeat(2, 1fr); }
  .imprint-grid { grid-template-columns: 1fr; }
  .contact-form { grid-template-columns: 1fr; }
  .site-nav { gap: 14px; }
  .site-header { padding: 14px 20px; }
  section { padding: 48px 20px; }
}

/* Mobile: hamburger menu */
@media (max-width: 640px) {
  .nav-toggle { display: inline-flex; }
  .site-header { flex-wrap: wrap; padding: 12px 16px; gap: 12px; }
  .site-nav {
    display: none;
    flex-basis: 100%;
    flex-direction: column;
    gap: 0;
    padding: 8px 0 4px;
    border-top: 1px solid var(--line);
    margin-top: 12px;
  }
  .site-nav.open { display: flex; }
  .site-nav a {
    display: block;
    padding: 12px 4px;
    font-size: 14px;
    border-bottom: 1px solid var(--line);
  }
  .site-nav a:last-child { border-bottom: none; }
  .site-nav a:hover { background: transparent; border-bottom-color: var(--line); }
  .hero { padding: 40px 16px 48px; }
  .hero-actions { width: 100%; }
  .hero-actions .btn { flex: 1 1 0; min-width: 0; }
  section { padding: 40px 16px; }
  .form-row { flex-direction: column; align-items: stretch; }
  .form-row input[type="email"] { flex: 0 0 auto; width: 100%; }
  .form-row .btn { width: 100%; }
  .field.actions { flex-direction: column; align-items: stretch; gap: 10px; }
  .field.actions .btn { width: 100%; }
  .footer-inner { flex-direction: column; gap: 8px; align-items: flex-start; }
}

@media (max-width: 520px) {
  .grid { grid-template-columns: 1fr; }
}