/* ============================================================
   GH Opticore Consulting — Shared stylesheet
   Modern enterprise, warm amber accent, Geist + JetBrains Mono
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Geist:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&family=Inter:wght@300;400;500;600;700&family=Manrope:wght@400;500;600;700&display=swap');

:root {
  /* Accent (amber / warm) — oklch */
  --accent: oklch(0.74 0.15 62);
  --accent-2: oklch(0.68 0.17 52);
  --accent-soft: oklch(0.95 0.04 70);
  --accent-ink: oklch(0.28 0.08 50);

  /* Neutrals — cool blue-grey */
  --bg: oklch(0.99 0.004 250);
  --bg-alt: oklch(0.975 0.006 250);
  --bg-card: oklch(1 0 0);
  --line: oklch(0.92 0.008 250);
  --line-strong: oklch(0.86 0.01 250);

  --ink: oklch(0.21 0.02 250);
  --ink-2: oklch(0.38 0.018 250);
  --ink-3: oklch(0.55 0.015 250);
  --ink-4: oklch(0.72 0.012 250);

  --font-sans: 'Geist', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;

  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 18px;

  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04), 0 1px 3px rgba(15, 23, 42, 0.03);
  --shadow: 0 4px 12px -2px rgba(15, 23, 42, 0.06), 0 2px 4px -1px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 20px 40px -10px rgba(15, 23, 42, 0.12), 0 8px 16px -4px rgba(15, 23, 42, 0.06);

  --container: 1240px;
  --nav-h: 68px;
}

[data-theme="dark"] {
  --bg: oklch(0.17 0.015 250);
  --bg-alt: oklch(0.20 0.017 250);
  --bg-card: oklch(0.22 0.018 250);
  --line: oklch(0.28 0.02 250);
  --line-strong: oklch(0.36 0.022 250);

  --ink: oklch(0.97 0.005 250);
  --ink-2: oklch(0.82 0.01 250);
  --ink-3: oklch(0.65 0.012 250);
  --ink-4: oklch(0.48 0.015 250);

  --accent-soft: oklch(0.30 0.06 60);
  --accent-ink: oklch(0.95 0.04 70);

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow: 0 4px 12px -2px rgba(0,0,0,0.35);
  --shadow-lg: 0 20px 40px -10px rgba(0,0,0,0.5);
}

/* ---------- Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "ss01", "cv11";
  transition: background 0.25s ease, color 0.25s ease;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4, h5 { margin: 0; font-weight: 600; letter-spacing: -0.022em; line-height: 1.1; }
p { margin: 0; }
button { font: inherit; color: inherit; cursor: pointer; border: none; background: none; }

/* ---------- Utility ---------- */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}
.mono { font-family: var(--font-mono); letter-spacing: -0.01em; }
.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before {
  content: "";
  width: 20px; height: 1px;
  background: currentColor;
}
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-2);
  padding: 6px 10px;
  background: var(--accent-soft);
  border-radius: 100px;
  margin-bottom: 20px;
}
.section-kicker::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

/* ---------- Top nav ---------- */
.topnav {
  position: sticky; top: 0;
  z-index: 100;
  height: var(--nav-h);
  background: color-mix(in oklab, var(--bg) 85%, transparent);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.topnav-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.01em;
}
.brand-mark {
  width: 36px; height: 36px;
  border-radius: 9px;
  background: transparent;
  display: grid;
  place-items: center;
  overflow: hidden;
  position: relative;
  flex-shrink: 0;
}
.brand-mark::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("logo-mark.png") center/contain no-repeat;
}
.brand-mark img {
  width: 110%;
  height: 110%;
  object-fit: contain;
  display: block;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text small {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 400;
  color: var(--ink-3);
  letter-spacing: 0.04em;
}
.nav-links {
  display: flex; align-items: center; gap: 4px;
  list-style: none; margin: 0; padding: 0;
}
.nav-links a {
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-2);
  border-radius: 8px;
  transition: color 0.15s, background 0.15s;
}
.nav-links a:hover { color: var(--ink); background: var(--bg-alt); }
.nav-links a.active { color: var(--ink); }
.nav-links a.active::after {
  content: "";
  display: block;
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--accent);
  margin: 2px auto -4px;
}
.nav-tools { display: flex; align-items: center; gap: 8px; }

.icon-btn {
  width: 36px; height: 36px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 8px;
  color: var(--ink-2);
  transition: background 0.15s, color 0.15s;
}
.icon-btn:hover { background: var(--bg-alt); color: var(--ink); }
.icon-btn svg { width: 16px; height: 16px; }

.lang-toggle {
  display: inline-flex;
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 3px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.04em;
}
.lang-toggle button {
  padding: 5px 10px;
  border-radius: 5px;
  color: var(--ink-3);
  text-transform: uppercase;
}
.lang-toggle button.is-active {
  background: var(--bg-card);
  color: var(--ink);
  box-shadow: var(--shadow-sm);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  font-size: 14px;
  font-weight: 500;
  border-radius: 8px;
  border: 1px solid transparent;
  transition: transform 0.15s, box-shadow 0.15s, background 0.15s, border-color 0.15s;
  white-space: nowrap;
}
.btn svg { width: 14px; height: 14px; }
.btn-primary {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: var(--shadow); }
.btn-accent {
  background: var(--accent);
  color: oklch(0.15 0.03 50);
  border-color: var(--accent);
}
.btn-accent:hover { background: var(--accent-2); border-color: var(--accent-2); transform: translateY(-1px); box-shadow: var(--shadow); }
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-strong);
}
.btn-ghost:hover { background: var(--bg-alt); border-color: var(--ink-3); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: clamp(60px, 10vw, 120px) 0 clamp(60px, 8vw, 100px);
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.hero > .container { position: relative; z-index: 1; }
.hero > .container { position: relative; z-index: 1; }
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: 60px;
  align-items: center;
}
.hero h1 {
  font-size: clamp(40px, 5.5vw, 72px);
  letter-spacing: -0.035em;
  line-height: 1.02;
  font-weight: 600;
}
.hero h1 em {
  font-style: normal;
  color: var(--accent-2);
  position: relative;
  white-space: nowrap;
}
.hero h1 em::after {
  content: "";
  position: absolute;
  left: 0; right: -2%; bottom: 2px;
  height: 8px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    var(--accent) 8%,
    var(--accent) 70%,
    color-mix(in oklab, var(--accent) 60%, transparent) 88%,
    transparent 100%
  );
  border-radius: 4px;
  transform: skewX(-6deg);
  filter: blur(0.3px);
  z-index: -1;
  pointer-events: none;
  opacity: 0.85;
}
.hero-lede {
  margin-top: 28px;
  font-size: 18px;
  color: var(--ink-2);
  max-width: 540px;
  line-height: 1.5;
}
.hero-ctas { margin-top: 36px; display: flex; flex-wrap: wrap; gap: 12px; }
.hero-meta {
  margin-top: 60px;
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
}
.hero-meta-item {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-3);
}
.hero-meta-item strong {
  display: block;
  font-family: var(--font-sans);
  font-size: 22px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.02em;
  margin-bottom: 2px;
}

/* animated visual */
.hero-visual {
  position: relative;
  aspect-ratio: 1/1;
  width: 100%;
  max-width: 520px;
  margin-left: auto;
}
.orb {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
}
.orb-ring {
  position: absolute;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  animation: spin 40s linear infinite;
}
.orb-ring::before, .orb-ring::after {
  content: "";
  position: absolute;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  top: 50%; left: -4px;
  transform: translateY(-50%);
  box-shadow: 0 0 16px var(--accent);
}
.orb-ring::after {
  left: auto; right: -4px;
  background: var(--ink);
  box-shadow: none;
  opacity: 0.5;
}
.orb-ring.r1 { inset: 0; animation-duration: 60s; }
.orb-ring.r2 { inset: 12%; animation-duration: 40s; animation-direction: reverse; }
.orb-ring.r3 { inset: 24%; animation-duration: 30s; }
.orb-ring.r4 { inset: 36%; animation-duration: 50s; animation-direction: reverse; opacity: 0.6; }
.orb-core {
  position: relative;
  width: 38%; height: 38%;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, var(--accent) 0%, var(--accent-2) 60%, oklch(0.45 0.15 40) 100%);
  box-shadow:
    0 0 0 1px color-mix(in oklab, var(--accent) 30%, transparent),
    0 20px 60px -10px color-mix(in oklab, var(--accent) 50%, transparent),
    inset -20px -30px 60px oklch(0.35 0.1 40);
  animation: pulse 4s ease-in-out infinite;
}
.orb-core::before {
  content: "";
  position: absolute;
  inset: 15%;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, rgba(255,255,255,0.5), transparent 50%);
}
/* Orbiting satellites: each track rotates around its center; chip is absolutely-positioned at top */
.orb-track {
  position: absolute;
  inset: 0;
  pointer-events: none;
  transform-origin: 50% 50%;
}
.orb-track > .orb-chip {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translate(-50%, -50%);
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
  background: var(--bg-card);
  border: 1px solid var(--line);
  padding: 6px 10px;
  border-radius: 6px;
  box-shadow: var(--shadow-sm);
  white-space: nowrap;
}
.orb-chip .dot {
  width: 12px; height: 12px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%,
    oklch(0.85 0.15 55) 0%,
    var(--accent) 40%,
    var(--accent-2) 75%,
    oklch(0.35 0.12 40) 100%);
  box-shadow:
    0 0 10px color-mix(in oklab, var(--accent) 60%, transparent),
    inset -2px -3px 5px oklch(0.25 0.08 40 / 0.6);
  animation: blink 2.4s ease-in-out infinite;
  flex-shrink: 0;
}
.orb-chip .dot.dot-b {
  background: radial-gradient(circle at 30% 30%,
    oklch(0.7 0 0) 0%,
    oklch(0.45 0 0) 50%,
    oklch(0.25 0 0) 100%);
  box-shadow:
    0 0 6px oklch(0.4 0 0 / 0.5),
    inset -2px -3px 5px oklch(0.15 0 0 / 0.7);
  opacity: 0.9;
}

/* Orbit animations — track rotates, chip counter-rotates at the SAME rate+direction so label stays upright */
@keyframes orbit-cw {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}
@keyframes orbit-ccw {
  from { transform: rotate(0deg); }
  to   { transform: rotate(-360deg); }
}
@keyframes chip-upright-cw {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to   { transform: translate(-50%, -50%) rotate(-360deg); }
}
@keyframes chip-upright-ccw {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to   { transform: translate(-50%, -50%) rotate(360deg); }
}

/* 6 satellites on 3 rings. Delays chosen so same-ring chips stay 180° apart at all times. */

/* OUTER ring — 80s clockwise. Voice AI (t1), Copilot 365 (t2) opposite */
.orb-track.t1,
.orb-track.t2 {
  animation: orbit-cw 80s linear infinite;
}
.orb-track.t1 > .orb-chip,
.orb-track.t2 > .orb-chip {
  top: 0;
  animation: chip-upright-cw 80s linear infinite;
}
.orb-track.t1,
.orb-track.t1 > .orb-chip { animation-delay: 0s; }
.orb-track.t2,
.orb-track.t2 > .orb-chip { animation-delay: -40s; } /* 180° offset */

/* MIDDLE ring — 56s counter-clockwise. Zoho One (t3), Schulungen (t4) opposite */
.orb-track.t3,
.orb-track.t4 {
  animation: orbit-ccw 56s linear infinite;
}
.orb-track.t3 > .orb-chip,
.orb-track.t4 > .orb-chip {
  top: 10%;
  animation: chip-upright-ccw 56s linear infinite;
}
.orb-track.t3,
.orb-track.t3 > .orb-chip { animation-delay: -14s; } /* 90° phase from outer */
.orb-track.t4,
.orb-track.t4 > .orb-chip { animation-delay: -42s; } /* 180° from t3 */

/* INNER ring — 36s clockwise. KI-Lösung (t5), Automatisierung (t6) opposite */
.orb-track.t5,
.orb-track.t6 {
  animation: orbit-cw 36s linear infinite;
}
.orb-track.t5 > .orb-chip,
.orb-track.t6 > .orb-chip {
  top: 22%;
  animation: chip-upright-cw 36s linear infinite;
}
.orb-track.t5,
.orb-track.t5 > .orb-chip { animation-delay: -9s; }  /* 90° phase */
.orb-track.t6,
.orb-track.t6 > .orb-chip { animation-delay: -27s; } /* 180° from t5 */

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes spin-reverse { to { transform: rotate(-360deg); } }
@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.04); }
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

@media (prefers-reduced-motion: reduce) {
  .orb-track, .orb-track > .orb-chip, .orb-ring, .orb-core, .orb-chip .dot {
    animation: none !important;
  }
}

/* ---------- Sections ---------- */
section.band {
  padding: clamp(70px, 9vw, 120px) 0;
  border-bottom: 1px solid var(--line);
}
section.band.alt { background: var(--bg-alt); }
.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
  gap: 60px;
  align-items: end;
  margin-bottom: 56px;
}
.section-head h2 {
  font-size: clamp(32px, 3.8vw, 48px);
  letter-spacing: -0.028em;
  line-height: 1.05;
}
.section-head p {
  color: var(--ink-2);
  font-size: 17px;
  max-width: 540px;
}

/* ---------- Core cards grid ---------- */
.core-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-card);
}
.core-card {
  padding: 32px 28px;
  border-right: 1px solid var(--line);
  transition: background 0.25s;
  display: flex; flex-direction: column;
  min-height: 280px;
  position: relative;
}
.core-card:last-child { border-right: none; }
.core-card:hover { background: var(--bg-alt); }
.core-card .num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-4);
  margin-bottom: 40px;
  letter-spacing: 0.1em;
}
.core-card .ico {
  width: 44px; height: 44px;
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--accent-2);
  display: grid; place-items: center;
  margin-bottom: 20px;
}
.core-card .ico svg { width: 20px; height: 20px; }
.core-card h3 {
  font-size: 18px;
  margin-bottom: 8px;
  letter-spacing: -0.015em;
}
.core-card .tag {
  font-size: 14px;
  color: var(--ink-2);
  margin-bottom: 14px;
}
.core-card .desc {
  font-size: 13.5px;
  color: var(--ink-3);
  line-height: 1.5;
  margin-top: auto;
}

/* ---------- Service blocks ---------- */
.svc {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
  gap: 80px;
  padding: 60px 0;
  border-bottom: 1px solid var(--line);
  align-items: start;
}
.svc:last-child { border-bottom: none; }
.svc-kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent-2);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.svc h3 {
  font-size: 32px;
  letter-spacing: -0.025em;
  line-height: 1.1;
}
.svc-lead {
  margin-top: 18px;
  font-size: 16px;
  color: var(--ink-2);
  line-height: 1.55;
}
.svc-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.svc-list li {
  display: flex;
  gap: 16px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
  font-size: 15px;
  color: var(--ink);
  align-items: start;
}
.svc-list li:first-child { border-top: none; padding-top: 0; }
.svc-list .num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-4);
  flex-shrink: 0;
  letter-spacing: 0.08em;
  padding-top: 3px;
}

/* ---------- Pillars (Lösungen) ---------- */
.pillars {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}
.pillar {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 32px;
  position: relative;
  overflow: hidden;
  transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
}
.pillar:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); border-color: var(--line-strong); }
.pillar-num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-4);
  margin-bottom: 40px;
  letter-spacing: 0.1em;
}
.pillar h4 {
  font-size: 22px;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}
.pillar p { color: var(--ink-2); font-size: 15px; line-height: 1.55; }
.pillar-accent {
  position: absolute;
  top: 32px; right: 32px;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent-2);
  display: grid; place-items: center;
}
.pillar-accent svg { width: 18px; height: 18px; }

/* ---------- Process ---------- */
.process {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
  position: relative;
}
.process::before {
  content: "";
  position: absolute;
  left: 0; right: 0;
  top: 28px;
  height: 1px;
  background: var(--line);
  z-index: 0;
}
.step {
  position: relative;
  z-index: 1;
}
.step-num {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--ink);
  background: var(--bg);
  border: 1px solid var(--line-strong);
  width: 56px;
  padding: 14px 0;
  border-radius: 10px;
  text-align: center;
  margin-bottom: 28px;
  letter-spacing: 0.04em;
  transition: border-color 0.3s, background 0.3s;
}
.step.is-lit .step-num {
  background: var(--accent);
  border-color: var(--accent);
  color: oklch(0.15 0.03 50);
}
.step h4 {
  font-size: 19px;
  margin-bottom: 10px;
  letter-spacing: -0.018em;
}
.step p {
  font-size: 14.5px;
  color: var(--ink-2);
  line-height: 1.5;
}

/* ---------- About / Gerald ---------- */
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: 80px;
  align-items: start;
}
.about-portrait {
  position: relative;
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.about-portrait img.portrait-photo {
  width: 100%;
  height: auto;
  display: block;
}
.portrait-badge {
  position: absolute;
  bottom: 20px; left: 20px;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px 16px;
  font-size: 12px;
  color: var(--ink-2);
  z-index: 2;
  box-shadow: var(--shadow-sm);
}
.portrait-badge strong {
  display: block;
  color: var(--ink);
  font-size: 14px;
  margin-bottom: 2px;
}
.about-body p {
  font-size: 16.5px;
  color: var(--ink-2);
  line-height: 1.65;
  margin-bottom: 18px;
}
.about-body p:first-child { font-size: 19px; color: var(--ink); line-height: 1.45; }

/* ---------- Credibility / logos / badges ---------- */
.creds {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 48px;
}
.cred {
  display: block;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  background: var(--bg-card);
  color: inherit;
  text-decoration: none;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
  position: relative;
}
.cred:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}
.cred::after {
  content: "↗";
  position: absolute;
  top: 16px; right: 18px;
  font-size: 14px;
  color: var(--ink-3);
  opacity: 0;
  transition: opacity 0.2s, transform 0.2s;
}
.cred:hover::after { opacity: 1; transform: translate(2px, -2px); color: var(--accent); }
.cred-logo {
  height: 40px;
  background: var(--bg-alt);
  border-radius: 6px;
  display: grid;
  place-items: center;
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--ink-3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px dashed var(--line-strong);
}
.cred strong {
  display: block;
  font-size: 14px;
  margin-bottom: 4px;
}
.cred p {
  font-size: 13px;
  color: var(--ink-3);
  line-height: 1.45;
}

/* ---------- Tüv card ---------- */
.tuv-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 40px;
  align-items: center;
  padding: 40px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
}
.tuv-card h3 {
  font-size: 26px;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
}
.tuv-card p { color: var(--ink-2); }
.tuv-mark {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 22px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.tuv-mark img {
  width: 100%;
  height: auto;
  display: block;
  max-width: 380px;
}
/* Override earlier tuv-card width — give TÜV mark a wider column */
.tuv-card {
  grid-template-columns: minmax(0, 1fr) minmax(0, 420px);
}

/* ---------- CTA band ---------- */
.cta-band {
  background: var(--bg-alt);
  color: var(--ink);
  padding: clamp(70px, 9vw, 110px) 0;
  border-bottom: 1px solid var(--line);
}
.cta-band [data-theme] { color: inherit; }
.cta-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 60px;
  align-items: center;
}
.cta-grid h2 {
  font-size: clamp(32px, 4vw, 52px);
  letter-spacing: -0.028em;
  line-height: 1.05;
}
.cta-grid p {
  margin-top: 18px;
  font-size: 17px;
  color: oklch(0.75 0.01 250);
  max-width: 480px;
}
.cta-band .btn-accent { margin-top: 28px; }
.cta-meta {
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  padding: 28px;
  background: var(--bg-card);
  color: var(--ink);
}
.cta-meta dl { margin: 0; display: grid; gap: 18px; }
.cta-meta dt {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.cta-meta dd { margin: 0; font-size: 15px; color: var(--ink); }
.cta-meta dd a { color: var(--ink); }
.cta-meta a:hover { color: var(--accent); }

/* ---------- Footer ---------- */
footer.site {
  padding: 80px 0 40px;
  background: var(--bg-alt);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 60px;
}
.footer-grid h5 {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 18px;
  font-weight: 500;
}
.footer-grid ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.footer-grid a { color: var(--ink-2); font-size: 14px; transition: color 0.15s; }
.footer-grid a:hover { color: var(--ink); }
.footer-grid .blurb { color: var(--ink-2); font-size: 14px; line-height: 1.6; max-width: 320px; margin-top: 16px; }
.footer-bottom {
  border-top: 1px solid var(--line);
  padding-top: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.04em;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- Tweak panel ---------- */
.tweak-panel {
  position: fixed;
  bottom: 20px; right: 20px;
  width: 300px;
  background: var(--bg-card);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 18px;
  z-index: 2147483000;
  font-family: var(--font-sans);
  font-size: 13px;
  display: none;
}
.tweak-panel.is-open { display: block; }
.tweak-panel h5 {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.tweak-group { margin-bottom: 14px; }
.tweak-group > label {
  display: block;
  font-size: 11px;
  color: var(--ink-3);
  margin-bottom: 6px;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.swatches { display: flex; gap: 6px; flex-wrap: wrap; }
.swatch {
  width: 28px; height: 28px;
  border-radius: 6px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: border-color 0.15s, transform 0.15s;
}
.swatch:hover { transform: scale(1.1); }
.swatch.is-active { border-color: var(--ink); }
.tweak-row { display: flex; gap: 6px; }
.tweak-chip {
  flex: 1;
  padding: 6px 8px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--bg);
  color: var(--ink-2);
  font-size: 12px;
  cursor: pointer;
  text-align: center;
  transition: all 0.15s;
}
.tweak-chip.is-active {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}

/* ---------- Reveal on scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s cubic-bezier(.16,1,.3,1), transform 0.7s cubic-bezier(.16,1,.3,1);
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- Page header (inner pages) ---------- */
.page-header {
  padding: clamp(80px, 10vw, 140px) 0 clamp(40px, 6vw, 80px);
  border-bottom: 1px solid var(--line);
}
.page-header h1 {
  font-size: clamp(40px, 5vw, 64px);
  letter-spacing: -0.03em;
  line-height: 1.05;
  max-width: 900px;
}
.page-header p {
  margin-top: 24px;
  max-width: 640px;
  color: var(--ink-2);
  font-size: 19px;
  line-height: 1.5;
}

/* ---------- Prose (legal) ---------- */
.prose {
  max-width: 780px;
  margin: 0 auto;
  padding: 60px 0 100px;
}
.prose h2 {
  font-size: 24px;
  margin: 48px 0 16px;
  letter-spacing: -0.02em;
}
.prose h3 {
  font-size: 17px;
  margin: 28px 0 10px;
}
.prose p, .prose ul {
  font-size: 15.5px;
  color: var(--ink-2);
  line-height: 1.7;
  margin-bottom: 14px;
}
.prose ul { padding-left: 22px; }
.prose a { color: var(--accent-2); text-decoration: underline; text-underline-offset: 3px; }
.prose strong { color: var(--ink); font-weight: 600; }

/* ---------- Contact page ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
  gap: 60px;
  padding: 60px 0 100px;
}
.contact-details dl { margin: 0; display: grid; gap: 28px; }
.contact-details dt {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.contact-details dd {
  margin: 0;
  font-size: 18px;
  letter-spacing: -0.01em;
}
.contact-details a:hover { color: var(--accent-2); }
.booking-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 36px;
}
.booking-card h3 {
  font-size: 22px;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

/* ---------- Hamburger button ---------- */
.nav-burger {
  display: none;
  width: 40px; height: 40px;
  border-radius: 10px;
  border: 1px solid var(--line-strong);
  background: var(--bg-alt);
  color: var(--ink);
}
.nav-burger svg { width: 20px; height: 20px; }
.nav-burger .burger-close { display: none; }
body.nav-open .nav-burger { background: var(--accent-soft); border-color: var(--accent); color: var(--accent-ink); }
body.nav-open .nav-burger .burger-open { display: none; }
body.nav-open .nav-burger .burger-close { display: block; }

/* ---------- Mobile nav drawer ---------- */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--nav-h);
  left: 0; right: 0;
  z-index: 1000;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
  padding: 4px 0 20px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
  max-height: calc(100vh - var(--nav-h));
}
body.nav-open .mobile-nav { display: block; }
body.nav-open { overflow: hidden; }

.mobile-nav ul {
  list-style: none; margin: 0; padding: 0 20px;
}
.mobile-nav ul li {
  border-bottom: 1px solid var(--line);
}
.mobile-nav ul li:last-child { border-bottom: none; }
.mobile-nav ul a {
  display: block;
  padding: 16px 8px;
  font-size: 16px;
  font-weight: 500;
  color: var(--ink-2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.mobile-nav ul a:hover { color: var(--ink); }
.mobile-nav ul a.active {
  color: var(--accent);
  font-weight: 700;
}
.mobile-nav-cta {
  padding: 16px 20px 0;
}
.mobile-nav-cta .btn {
  width: 100%;
  justify-content: center;
  font-size: 15px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.mobile-nav-legal {
  padding: 14px 20px 8px;
  display: flex;
  align-items: center;
  gap: 20px;
  border-top: 1px solid var(--line);
  margin-top: 8px;
}
.mobile-nav-legal a {
  display: inline-block;
  padding: 10px 6px;
  font-size: 12px;
  color: var(--ink-3);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.mobile-nav-legal a:hover { color: var(--ink-2); }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .hero-grid, .section-head, .svc, .about-grid, .cta-grid, .contact-grid, .tuv-card {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .section-head { align-items: start; }
  .core-grid { grid-template-columns: repeat(2, 1fr); }
  .core-card:nth-child(2) { border-right: none; }
  .core-card:nth-child(1), .core-card:nth-child(2) { border-bottom: 1px solid var(--line); }
  .pillars, .process, .creds { grid-template-columns: repeat(2, 1fr); }
  .process::before { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  footer.site { padding-bottom: 88px; }
  .tuv-card { grid-template-columns: 1fr; }
  .tuv-mark { max-width: 240px; }
  .nav-links { display: none; }
  .hero-visual { max-width: 380px; margin: 0 auto; }
  .nav-tools .btn-primary { display: none; }
  .nav-burger { display: inline-flex; }
}
@media (min-width: 981px) and (max-width: 1140px) {
  .nav-links { display: none; }
  .nav-tools .btn-primary { display: none; }
  .nav-burger { display: inline-flex; }
}

@media (max-width: 560px) {
  .core-grid, .pillars, .process, .creds { grid-template-columns: 1fr; }
  .core-card { border-right: none !important; border-bottom: 1px solid var(--line); }
  .core-card:last-child { border-bottom: none; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  footer.site { padding-bottom: 88px; }
  .hero-meta { gap: 24px; }
  /* Orbit: shrink chips so labels fit inside the small circle */
  .hero-visual { max-width: 320px; }
  .orb-track > .orb-chip {
    font-size: 9px;
    padding: 4px 7px;
    letter-spacing: 0.06em;
    gap: 5px;
  }
  .orb-chip .dot { width: 9px; height: 9px; }
  /* Header: hide subtitle on very small screens to prevent overflow */
  .brand-text small { display: none; }
  .brand-text { justify-content: center; }
}
@media (max-width: 400px) {
  .hero-visual { max-width: 280px; }
  .orb-track > .orb-chip { font-size: 8.5px; padding: 3px 6px; }
  .lang-toggle button { padding: 5px 7px; }
}
@media (max-width: 380px) {
  .container { padding: 0 16px; }
  .topnav-inner { gap: 8px; }
  .brand-mark { width: 28px; height: 28px; }
  .brand-text span { font-size: 13px; }
  .nav-tools { gap: 6px; }
}

/* ---------- Translations ---------- */
[data-lang="en"] [data-de] { display: none !important; }
[data-lang="de"] [data-en] { display: none !important; }