/* ── VARIABLES ──
   Light theme, restrained teal accent. See CLAUDE.md "Design system" for
   the reasoning (2026-08-10 rebuild: warm off-white base replaces the
   prior near-black theme; --accent deepened from the brand's #2dd4bf so
   button text stays WCAG AA on white, --accent-soft keeps the lighter
   brand teal for badges/highlights). */
:root {
  --bg:          #FAFAF8;
  --bg-2:        #ECEAE1;
  --card:        #FFFFFF;
  --text:        #14181A;
  --text-2:      rgba(20,24,26,0.64);
  --text-muted:  rgba(20,24,26,0.44);
  --border:      rgba(20,24,26,0.11);
  --accent:      #0E7A6E;
  --accent-soft: #2dd4bf;
  --accent-tint: rgba(14,122,110,0.09);
  --accent-deep: #0A5850;
  --green:       #16A34A;
  --amber:       #B7791F;
  --red:         #B91C1C;
  --font:        'Manrope', system-ui, -apple-system, sans-serif;
  --font-display: 'Fraunces', 'Manrope', system-ui, serif;
  --mono:        ui-monospace, 'IBM Plex Mono', monospace;
  --max:         1200px;
  --pad:         1.5rem;
  --r:           16px;
  --r-lg:        20px;
  --r-pill:      999px;
  --ease-out:    cubic-bezier(0.23, 1, 0.32, 1);
}

/* ── RESET ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font); color: var(--text); background: var(--bg);
  line-height: 1.6; -webkit-font-smoothing: antialiased; overflow-x: hidden;
  animation: page-in 0.5s ease both;
}
@keyframes page-in { from { opacity: 0; } to { opacity: 1; } }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
svg { display: block; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
}

/* ── UTILITIES ── */
.container { max-width: var(--max); margin: 0 auto; padding: 0 var(--pad); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

/* ── TYPOGRAPHY ── */
.label {
  display: inline-block;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.label-accent { color: var(--accent); }
.section-headline {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.1rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.08;
  color: var(--text);
}
.section-headline em { font-style: normal; color: var(--accent); }
.section-sub {
  font-size: 1.05rem;
  color: var(--text-2);
  line-height: 1.65;
  max-width: 640px;
}
.section-header { text-align: center; margin-bottom: 3.5rem; }
.section-header .label { margin-bottom: 1rem; }
.section-header .section-headline { margin-bottom: 1.25rem; }
.section-header .section-sub { margin: 0 auto; }

/* ── BUTTONS ── */
.btn-primary {
  display: inline-flex; align-items: center; gap: 0.4rem;
  background: var(--accent); color: #fff;
  border: 1px solid transparent; border-radius: var(--r-pill);
  padding: 0.875rem 1.5rem;
  font-size: 0.95rem; font-weight: 600;
  transition: transform 0.18s var(--ease-out), box-shadow 0.18s var(--ease-out);
  cursor: pointer;
}
.nav-cta .btn-primary {
  background: var(--accent); color: #fff;
}
.btn-primary:active { transform: scale(0.97) !important; }
@media (hover: hover) and (pointer: fine) {
  .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(14,122,110,0.24); }
}
.btn-secondary {
  display: inline-flex; align-items: center; gap: 0.4rem;
  background: transparent; color: var(--text);
  border: 1px solid var(--border); border-radius: var(--r-pill);
  padding: 0.875rem 1.5rem;
  font-size: 0.95rem; font-weight: 600;
  transition: background 0.15s var(--ease-out), border-color 0.15s var(--ease-out);
  cursor: pointer;
}
.btn-secondary:active { transform: scale(0.97); }
@media (hover: hover) and (pointer: fine) {
  .btn-secondary:hover { background: var(--bg-2); border-color: rgba(14,122,110,0.35); }
}

/* ── SCROLL ANIMATION ── */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}
.fade-up.visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: 0.08s; }
.delay-2 { transition-delay: 0.16s; }
.delay-3 { transition-delay: 0.24s; }
.delay-4 { transition-delay: 0.32s; }

/* ════════════════════════════════════════
   NAV
════════════════════════════════════════ */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(250,250,248,0.90);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow 0.2s ease;
}
.nav-inner {
  max-width: var(--max); margin: 0 auto; padding: 0 var(--pad);
  display: flex; align-items: center; justify-content: space-between; height: 68px;
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 1.4rem; font-weight: 600; color: var(--text);
  letter-spacing: -0.01em; user-select: none;
}
.nav-logo span { color: var(--accent); }
.nav-links { display: flex; align-items: center; gap: 2rem; list-style: none; }
.nav-links a { font-size: 0.9rem; font-weight: 500; color: var(--text-2); transition: color 0.15s ease; }
.nav-links a:hover { color: var(--text); }
.nav-cta { margin-left: 0.5rem; }
.nav-hamburger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; padding: 4px; cursor: pointer;
}
.nav-hamburger span {
  display: block; width: 22px; height: 1.5px;
  background: var(--text); border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }
.nav-mobile {
  display: none; padding: 1rem var(--pad) 1.5rem;
  border-top: 1px solid var(--border);
  background: var(--bg);
}
.nav-mobile.open { display: block; }
.nav-mobile ul { list-style: none; display: flex; flex-direction: column; gap: 0.25rem; }
.nav-mobile a {
  display: block; padding: 0.6rem 0;
  font-size: 1rem; font-weight: 500; color: var(--text-2);
  border-bottom: 1px solid var(--border);
}
.nav-mobile .btn-primary { margin-top: 1rem; justify-content: center; width: 100%; }

/* ════════════════════════════════════════
   HERO
════════════════════════════════════════ */
.hero {
  background: var(--bg);
  padding: 6rem var(--pad) 5rem;
  position: relative; overflow: hidden;
}
.hero-inner {
  max-width: var(--max); margin: 0 auto;
  display: grid; grid-template-columns: 1.1fr 0.9fr;
  gap: 4rem; align-items: center;
  position: relative; z-index: 1;
}
.hero-label {
  display: block;
  font-family: var(--mono); font-size: 11px; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent);
  margin-bottom: 1rem;
}
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 4.2rem);
  font-weight: 600; letter-spacing: -0.02em;
  line-height: 1.05; color: var(--text);
  margin-bottom: 1.5rem;
}
.hero h1 em { font-style: normal; color: var(--accent); }
.hero-sub {
  font-size: 1.15rem; color: var(--text-2); line-height: 1.65;
  max-width: 520px; margin-bottom: 2rem;
}
.hero-actions { display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap; margin-bottom: 2.25rem; }
.hero-micro { font-size: 0.85rem; color: var(--text-muted); }

/* Hero stat callout: replaces the old fictional dashboard mockup with a
   single, real, testimonial-backed number. */
.hero-stat {
  display: inline-flex; align-items: center; gap: 1rem;
  padding: 0.85rem 0 0.85rem 1.1rem;
  border-left: 3px solid var(--accent);
}
.hero-stat-num {
  font-family: var(--font-display); font-weight: 600;
  font-size: 1.9rem; color: var(--accent); line-height: 1; white-space: nowrap;
}
.hero-stat-label { font-size: 0.85rem; color: var(--text-muted); max-width: 240px; line-height: 1.5; }

/* Hero visual: honest flow diagram instead of a fake product dashboard */
.hero-visual {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--r-lg); padding: 1.75rem;
  box-shadow: 0 24px 60px rgba(20,24,26,0.06);
}
.hero-visual-label {
  font-family: var(--mono); font-size: 10px; font-weight: 500;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--text-muted); margin-bottom: 1.25rem;
}

/* ════════════════════════════════════════
   FLOW DIAGRAMS (shared component)
════════════════════════════════════════ */
.flow {
  display: flex; flex-direction: column; gap: 0;
}
.flow-step {
  display: flex; align-items: center; gap: 0.85rem;
  padding: 0.7rem 0.85rem;
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: 12px;
  font-size: 0.85rem; color: var(--text); font-weight: 500;
}
.flow-step.is-accent {
  background: var(--accent-tint); border-color: rgba(14,122,110,0.25); color: var(--accent-deep);
}
.flow-step-icon {
  width: 26px; height: 26px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  border-radius: 8px; background: var(--card); border: 1px solid var(--border);
}
.flow-connector {
  display: flex; align-items: center; justify-content: flex-start;
  padding-left: 1.15rem; height: 20px;
}
.flow-connector svg { color: var(--text-muted); }

/* ════════════════════════════════════════
   TRUST STRIP
════════════════════════════════════════ */
.trust-strip {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 0.5rem 2rem;
  max-width: var(--max); margin: 0 auto; padding: 1.75rem var(--pad);
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
}
.trust-strip-item {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-size: 0.85rem; color: var(--text-2); font-weight: 500;
}

/* ════════════════════════════════════════
   PROBLEM
════════════════════════════════════════ */
.section-problem { background: var(--bg-2); padding: 6rem var(--pad); }
.problem-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 0; max-width: var(--max); margin: 0 auto;
  border-top: 1px solid var(--border);
}
.problem-card {
  padding: 1.75rem 1.75rem 1.75rem 0;
  border-bottom: 1px solid var(--border);
}
.problem-grid .problem-card:nth-child(odd) { border-right: 1px solid var(--border); padding-right: 1.75rem; }
.problem-grid .problem-card:nth-child(even) { padding-left: 1.75rem; }
.problem-card-num {
  font-family: var(--mono); font-size: 10px;
  color: var(--accent); margin-bottom: 0.75rem; letter-spacing: 0.08em;
}
.problem-card h3 {
  font-size: 1.05rem; font-weight: 700; color: var(--text);
  margin-bottom: 0.65rem; letter-spacing: -0.01em;
}
.problem-card p { font-size: 0.92rem; color: var(--text-2); line-height: 1.65; }

/* ════════════════════════════════════════
   ERGEBNISSE / PROOF
════════════════════════════════════════ */
.section-proof { background: var(--bg); padding: 6rem var(--pad); }
.proof-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem; max-width: var(--max); margin: 0 auto;
}
.proof-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--r-lg); padding: 1.75rem;
  display: flex; flex-direction: column;
}
.proof-card.featured {
  border-color: rgba(14,122,110,0.3);
  box-shadow: 0 16px 40px rgba(14,122,110,0.08);
}
.proof-result {
  font-family: var(--font-display); font-weight: 600;
  font-size: 1.05rem; color: var(--accent-deep); margin-bottom: 0.85rem; line-height: 1.3;
}
.proof-quote { font-size: 0.92rem; color: var(--text-2); line-height: 1.65; flex: 1; margin-bottom: 1.25rem; }
.proof-author { display: flex; align-items: center; gap: 0.65rem; }
.proof-avatar {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--accent-tint); color: var(--accent-deep);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem; font-weight: 700; flex-shrink: 0;
}
.proof-name { font-size: 0.85rem; font-weight: 600; color: var(--text); }
.proof-role { font-size: 0.78rem; color: var(--text-muted); }

/* ════════════════════════════════════════
   LOESUNGEN — numbered service grid
════════════════════════════════════════ */
.section-solutions { background: var(--bg-2); padding: 6rem var(--pad); }
.solution-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem; max-width: var(--max); margin: 0 auto;
}
.solution-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--r-lg); padding: 1.75rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}
@media (hover: hover) and (pointer: fine) {
  .solution-card:hover {
    border-color: rgba(14,122,110,0.3);
    box-shadow: 0 12px 32px rgba(14,122,110,0.08);
    transform: translateY(-2px);
  }
}
.solution-num {
  font-family: var(--mono); font-size: 11px; font-weight: 500;
  color: var(--text-muted); margin-bottom: 1rem; letter-spacing: 0.06em;
}
.solution-card h3 {
  font-size: 1.05rem; font-weight: 700; color: var(--text);
  margin-bottom: 0.6rem; letter-spacing: -0.01em;
}
.solution-card p { font-size: 0.88rem; color: var(--text-2); line-height: 1.6; margin-bottom: 1rem; }
.solution-card a { font-size: 0.85rem; font-weight: 600; color: var(--accent); }
.solution-card-open {
  background: var(--accent-tint); border: 1px dashed rgba(14,122,110,0.35);
}
.solution-card-open .solution-num { color: var(--accent-deep); }

/* ════════════════════════════════════════
   ZUSAMMENARBEIT / METHOD (SVG path-draw, kept from before)
════════════════════════════════════════ */
.section-method { background: var(--accent-deep); padding: 6rem var(--pad); position: relative; overflow: hidden; }
.section-method::before {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(ellipse 60% 50% at 50% 0%, rgba(45,212,191,0.14), transparent 70%);
}
.section-method .label { color: rgba(255,255,255,0.55); }
.section-method .section-headline { color: #fff; }
.method-steps { max-width: var(--max); margin: 0 auto; position: relative; z-index: 1; }
.method-path-wrap { margin-bottom: -1px; }
.method-path { display: block; width: 100%; height: auto; overflow: visible; }
.method-path path {
  fill: none; stroke: rgba(255,255,255,0.16); stroke-width: 2;
}
.method-path .method-draw {
  stroke: var(--accent-soft); stroke-dasharray: 1000; stroke-dashoffset: 1000;
  transition: stroke-dashoffset 1.6s var(--ease-out);
}
.method-path .method-draw.drawn { stroke-dashoffset: 0; }
.method-dot {
  fill: var(--accent-deep); stroke: rgba(255,255,255,0.24); stroke-width: 2; transition: fill 0.3s ease, stroke 0.3s ease;
}
.method-dot.drawn { fill: var(--accent-soft); stroke: var(--accent-soft); }
.method-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem;
}
.method-card { text-align: center; padding: 0 1rem; }
.method-card-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 36px; height: 36px; border-radius: 50%;
  background: rgba(255,255,255,0.1); color: var(--accent-soft);
  font-family: var(--mono); font-weight: 600; font-size: 0.9rem;
  margin-bottom: 1rem;
}
.method-card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 0.5rem; color: #fff; }
.method-card p { font-size: 0.88rem; color: rgba(255,255,255,0.65); line-height: 1.6; }

/* ════════════════════════════════════════
   UEBER CELYVO teaser
════════════════════════════════════════ */
.section-about { background: var(--bg-2); padding: 6rem var(--pad); }
.about-grid {
  display: grid; grid-template-columns: 200px 1fr; gap: 3rem; align-items: center;
  max-width: var(--max); margin: 0 auto;
}
.about-portrait {
  width: 200px; height: 200px; border-radius: var(--r-lg);
  overflow: hidden; flex-shrink: 0;
  border: 1px solid var(--border);
}
.about-portrait img { width: 100%; height: 100%; object-fit: cover; }
.about-body p { font-size: 1rem; color: var(--text-2); line-height: 1.7; margin-bottom: 1rem; max-width: 620px; }
.about-body a { color: var(--accent); font-weight: 600; }

/* ════════════════════════════════════════
   FAQ
════════════════════════════════════════ */
.section-faq { background: var(--bg); padding: 6rem var(--pad); }
.faq-list { max-width: 760px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-q {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  background: none; border: none; text-align: left;
  padding: 1.4rem 0; font-size: 1rem; font-weight: 600; color: var(--text);
}
.faq-q-icon {
  flex-shrink: 0; width: 20px; height: 20px; position: relative;
}
.faq-q-icon::before, .faq-q-icon::after {
  content: ''; position: absolute; background: var(--text-muted);
  transition: transform 0.25s ease;
}
.faq-q-icon::before { top: 9px; left: 0; width: 20px; height: 2px; }
.faq-q-icon::after { top: 0; left: 9px; width: 2px; height: 20px; }
.faq-item.open .faq-q-icon::after { transform: rotate(90deg); opacity: 0; }
.faq-a {
  max-height: 0; overflow: hidden; transition: max-height 0.3s var(--ease-out);
}
.faq-a p { font-size: 0.92rem; color: var(--text-2); line-height: 1.7; padding-bottom: 1.4rem; }

/* ════════════════════════════════════════
   FINAL CTA
════════════════════════════════════════ */
.section-cta {
  background: var(--accent-deep); padding: 6rem var(--pad); position: relative; overflow: hidden;
}
.cta-inner {
  max-width: 720px; margin: 0 auto; text-align: center; position: relative; z-index: 1;
}
.section-cta .section-headline { color: #fff; }
.section-cta .section-sub { color: rgba(255,255,255,0.72); margin: 0 auto 2rem; }
.section-cta .btn-primary { background: #fff; color: var(--accent-deep); }
@media (hover: hover) and (pointer: fine) {
  .section-cta .btn-primary:hover { box-shadow: 0 10px 28px rgba(0,0,0,0.2); }
}
.cta-form {
  margin-top: 2.5rem; display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem;
  background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.14);
  border-radius: var(--r-lg); padding: 1.5rem; text-align: left;
}
.cta-form input, .cta-form textarea {
  width: 100%; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.18);
  border-radius: 10px; padding: 0.7rem 0.85rem; color: #fff; font-family: inherit; font-size: 16px;
}
.cta-form input::placeholder, .cta-form textarea::placeholder { color: rgba(255,255,255,0.45); }
.cta-form textarea { grid-column: 1 / -1; min-height: 90px; resize: vertical; }
.cta-form-submit { grid-column: 1 / -1; display: flex; align-items: center; gap: 1rem; }
.cta-form-feedback { font-size: 0.85rem; color: rgba(255,255,255,0.7); }
.cta-form-feedback.ok { color: #fff; font-weight: 600; }
.cta-form-feedback.err { color: #ffb4b4; }
@media (max-width: 640px) { .cta-form { grid-template-columns: 1fr; } }
.cta-form.is-light {
  background: var(--card); border-color: var(--border);
  box-shadow: 0 24px 60px rgba(20,24,26,0.06);
}
.cta-form.is-light input, .cta-form.is-light textarea {
  background: var(--bg-2); border-color: var(--border); color: var(--text);
}
.cta-form.is-light input::placeholder, .cta-form.is-light textarea::placeholder { color: var(--text-muted); }
.cta-form.is-light .cta-form-feedback { color: var(--text-muted); }
.cta-form.is-light .cta-form-feedback.ok { color: var(--accent); }

/* ════════════════════════════════════════
   FOOTER
════════════════════════════════════════ */
.footer { background: var(--bg); border-top: 1px solid var(--border); padding: 4rem var(--pad) 2rem; }
.footer-inner { max-width: var(--max); margin: 0 auto; }
.footer-top {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 3rem;
  padding-bottom: 3rem; border-bottom: 1px solid var(--border); margin-bottom: 1.5rem;
}
.footer-logo { font-family: var(--font-display); font-size: 1.25rem; font-weight: 600; margin-bottom: 0.75rem; }
.footer-logo span { color: var(--accent); }
.footer-tagline { font-size: 0.88rem; color: var(--text-2); line-height: 1.6; max-width: 320px; }
.footer-links-title {
  font-family: var(--mono); font-size: 10px; font-weight: 500; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--text-muted); margin-bottom: 1rem;
}
.footer-links-col ul { list-style: none; display: flex; flex-direction: column; gap: 0.6rem; }
.footer-links-col a { font-size: 0.88rem; color: var(--text-2); }
.footer-links-col a:hover { color: var(--accent); }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1rem; }
.footer-copy { font-size: 0.8rem; color: var(--text-muted); }
.footer-legal { list-style: none; display: flex; gap: 1.25rem; }
.footer-legal a { font-size: 0.8rem; color: var(--text-muted); }
.footer-legal a:hover { color: var(--text); }

/* ════════════════════════════════════════
   COOKIE BANNER
════════════════════════════════════════ */
.cookie-banner {
  position: fixed; left: 1rem; right: 1rem; bottom: 1rem; z-index: 200;
  max-width: 560px; margin: 0 auto;
  background: var(--text); color: #fff;
  border-radius: var(--r-lg); padding: 1rem 1.25rem;
  display: flex; align-items: center; gap: 1rem; flex-wrap: wrap;
  box-shadow: 0 16px 48px rgba(0,0,0,0.2);
}
.cookie-banner.hidden { display: none; }
.cookie-text { font-size: 0.82rem; color: rgba(255,255,255,0.78); flex: 1; min-width: 200px; }
.cookie-text a { color: #fff; text-decoration: underline; }
.cookie-btn {
  background: #fff; color: var(--text); border: none; border-radius: var(--r-pill);
  padding: 0.5rem 1rem; font-size: 0.82rem; font-weight: 600; cursor: pointer;
}

/* ════════════════════════════════════════
   PAGE HERO (sub-pages)
════════════════════════════════════════ */
.breadcrumbs {
  max-width: var(--max); margin: 0 auto; padding: 1.25rem var(--pad) 0;
  font-size: 0.82rem; color: var(--text-muted);
}
.breadcrumbs a { color: var(--text-muted); }
.breadcrumbs a:hover { color: var(--accent); }
.breadcrumbs .sep { margin: 0 0.5rem; }
.page-hero { max-width: var(--max); margin: 0 auto; padding: 2.5rem var(--pad) 3.5rem; }
.page-hero h1 {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(2rem, 4.5vw, 3.2rem); letter-spacing: -0.02em; line-height: 1.1;
  max-width: 780px; margin-top: 0.75rem;
}

/* ════════════════════════════════════════
   CASE / REFERENZ DETAIL
════════════════════════════════════════ */
.case-block { max-width: 780px; margin: 0 auto 3rem; padding: 0 var(--pad); }
.case-block h2 {
  font-family: var(--font-display); font-weight: 600; font-size: 1.5rem;
  margin-bottom: 1rem; letter-spacing: -0.01em;
}
.case-block p { font-size: 1rem; color: var(--text-2); line-height: 1.75; margin-bottom: 1rem; }
.case-block ul { list-style: none; display: flex; flex-direction: column; gap: 0.6rem; }
.case-block ul li {
  font-size: 1rem; color: var(--text-2); line-height: 1.6;
  padding-left: 1.3rem; position: relative;
}
.case-block ul li::before {
  content: ''; position: absolute; left: 0; top: 0.6rem;
  width: 6px; height: 6px; border-radius: 50%; background: var(--accent);
}
.case-limits {
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: var(--r); padding: 1.1rem 1.25rem;
  font-size: 0.92rem; color: var(--text-2); line-height: 1.6;
}

/* ════════════════════════════════════════
   ERROR PAGE
════════════════════════════════════════ */
.error-page {
  max-width: 560px; margin: 0 auto; padding: 6rem var(--pad) 8rem; text-align: center;
}
.error-code {
  display: inline-block; font-family: var(--mono); font-size: 12px; font-weight: 500;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 1rem;
}
.error-page h1 {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(1.8rem, 4vw, 2.5rem); margin-bottom: 1rem; letter-spacing: -0.01em;
}
.error-page p { font-size: 1rem; color: var(--text-2); line-height: 1.65; margin-bottom: 2rem; }

/* ════════════════════════════════════════
   MOBILE
════════════════════════════════════════ */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .hero-inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .problem-grid, .proof-grid, .solution-grid, .method-grid { grid-template-columns: 1fr; }
  .problem-grid .problem-card:nth-child(odd) { border-right: none; padding-right: 0; }
  .problem-grid .problem-card:nth-child(even) { padding-left: 0; }
  .problem-card { padding-left: 0; padding-right: 0; }
  .about-grid { grid-template-columns: 1fr; text-align: center; }
  .about-portrait { margin: 0 auto; }
  .about-body p { margin-left: auto; margin-right: auto; }
  .footer-top { grid-template-columns: 1fr; gap: 2rem; }

  .hero { padding: 3rem var(--pad) 3rem; }
  .section-problem, .section-proof, .section-solutions, .section-method,
  .section-about, .section-faq, .section-cta { padding: 3.5rem var(--pad); }
  .section-header { margin-bottom: 2.25rem; }
  .page-hero { padding: 1.75rem var(--pad) 2.25rem; }
  .case-block { margin: 0 auto 2rem; }

  .nav-mobile a { padding: 0.85rem 0; }
  .faq-q { padding: 1.1rem 0; }
}

@media (max-width: 420px) {
  :root { --pad: 1.1rem; }
  .hero-stat { flex-wrap: wrap; }
}