/* ===== Design tokens ===== */
:root {
  --paper: #F7F8FB;
  --paper-alt: #FFFFFF;
  --ink: #10182B;
  --ink-soft: #4E5A70;
  --ink-faint: #8792A3;
  --circuit-blue: #1B4CE0;
  --circuit-blue-dark: #123AAD;
  --circuit-blue-tint: #EAEFFD;
  --hazard-amber: #F5A623;
  --hazard-amber-tint: #FEF3E2;
  --copper: #B5652A;
  --line: #D6DCE5;
  --line-soft: #E7EBF1;
  --footer-ink: #0C1424;

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

  --radius-s: 6px;
  --radius-m: 10px;
  --radius-l: 16px;
  --shadow-card: 0 1px 2px rgba(16, 24, 43, 0.04), 0 8px 24px -12px rgba(16, 24, 43, 0.12);
  --shadow-card-hover: 0 1px 2px rgba(16, 24, 43, 0.06), 0 16px 32px -14px rgba(27, 76, 224, 0.22);
  --container-w: 1180px;
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body, h1, h2, h3, h4, p, figure { margin: 0; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
button { font: inherit; cursor: pointer; }
input, textarea, select { font: inherit; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

:focus-visible {
  outline: 2px solid var(--hazard-amber);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ===== Base ===== */
body {
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--ink);
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.container {
  width: 100%;
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: 24px;
}

.section { padding-block: clamp(56px, 8vw, 108px); }
.section-alt { background: var(--paper-alt); border-block: 1px solid var(--line-soft); }

.section-head {
  max-width: 640px;
  margin-bottom: clamp(36px, 5vw, 60px);
}
.section-head.center { max-width: 680px; margin-inline: auto; text-align: center; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--circuit-blue);
  margin-bottom: 14px;
}
.eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--hazard-amber);
  border-radius: 2px;
  flex-shrink: 0;
}

.section-head h2 {
  font-size: clamp(1.75rem, 1.4rem + 1.6vw, 2.5rem);
  margin-bottom: 14px;
}
.section-head p { color: var(--ink-soft); font-size: 1.05rem; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: #fff;
  padding: 12px 20px;
  z-index: 200;
  border-radius: 0 0 var(--radius-s) 0;
}
.skip-link:focus { left: 0; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 24px;
  border-radius: var(--radius-s);
  font-weight: 600;
  font-size: 0.98rem;
  border: 1.5px solid transparent;
  transition: transform 150ms ease, box-shadow 150ms ease, background-color 150ms ease, border-color 150ms ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--circuit-blue); color: #fff; box-shadow: 0 10px 24px -10px rgba(27,76,224,0.55); }
.btn-primary:hover { background: var(--circuit-blue-dark); }
.btn-amber { background: var(--hazard-amber); color: var(--ink); box-shadow: 0 10px 24px -10px rgba(245,166,35,0.5); }
.btn-amber:hover { background: #e8981a; }
.btn-outline { background: transparent; border-color: var(--line); color: var(--ink); }
.btn-outline:hover { border-color: var(--circuit-blue); color: var(--circuit-blue); }
.btn-block { width: 100%; }

.btn-row { display: flex; flex-wrap: wrap; gap: 14px; }

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(247, 248, 251, 0.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-soft);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-block: 14px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--ink);
}
.logo img { width: 34px; height: 34px; }
.logo .accent { color: var(--circuit-blue); }

.main-nav {
  display: flex;
  align-items: center;
  gap: clamp(18px, 3vw, 34px);
  font-size: 0.98rem;
  font-weight: 500;
}
.main-nav a {
  position: relative;
  padding: 8px 2px;
  color: var(--ink-soft);
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: 2px;
  height: 2px;
  background: var(--circuit-blue);
  transition: right 180ms ease;
}
.main-nav a:hover { color: var(--ink); }
.main-nav a:hover::after, .main-nav a[aria-current="page"]::after { right: 0; }
.main-nav a[aria-current="page"] { color: var(--ink); font-weight: 600; }

.header-cta { display: flex; align-items: center; gap: 14px; }
.header-phone {
  display: none;
  font-family: var(--font-mono);
  font-size: 0.92rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  padding: 8px 14px;
  gap: 8px;
  align-items: center;
}
.header-phone .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--hazard-amber); }

.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin-inline: auto;
  background: var(--ink);
  transition: transform 200ms ease, opacity 200ms ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 899px) {
  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--paper-alt);
    border-bottom: 1px solid var(--line-soft);
    flex-direction: column;
    align-items: stretch;
    padding: 8px 24px 20px;
    gap: 4px;
    display: none;
  }
  .main-nav.is-open { display: flex; }
  .main-nav a { padding: 12px 4px; min-height: 44px; display: flex; align-items: center; }
  .main-nav a::after { display: none; }
}
@media (min-width: 900px) {
  .nav-toggle { display: none; }
  .header-phone { display: flex; }
}
@media (max-width: 479px) {
  .header-cta .btn-primary { display: none; }
}

/* ===== Hero ===== */
.hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(48px, 8vw, 96px);
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 42px 42px;
  background-position: center top;
  -webkit-mask-image: linear-gradient(to bottom, black 0%, black 70%, transparent 100%);
  mask-image: linear-gradient(to bottom, black 0%, black 70%, transparent 100%);
}
.hero-inner {
  display: grid;
  gap: 48px;
  align-items: center;
  max-width: 720px;
}

.hero h1 {
  font-size: clamp(2.3rem, 1.7rem + 2.6vw, 3.6rem);
  margin-bottom: 20px;
}
.hero h1 .accent { color: var(--circuit-blue); }
.hero-lede {
  font-size: 1.15rem;
  color: var(--ink-soft);
  max-width: 46ch;
  margin-bottom: 30px;
}

.spec-plate {
  margin-top: 36px;
  display: flex;
  flex-wrap: wrap;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: var(--paper-alt);
  overflow: hidden;
}
.spec-item {
  flex: 1 1 140px;
  padding: 14px 18px;
  border-right: 1px solid var(--line);
}
.spec-item:last-child { border-right: none; }
.spec-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 4px;
}
.spec-value {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1rem;
  color: var(--ink);
}

/* ===== Trust strip ===== */
.trust-strip {
  border-block: 1px solid var(--line-soft);
  background: var(--paper-alt);
}
.trust-strip .container {
  display: flex;
  flex-wrap: wrap;
  gap: 20px 40px;
  justify-content: space-between;
  padding-block: 22px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--ink-soft);
}
.trust-strip strong { color: var(--ink); }

/* ===== Cards / Grid ===== */
.grid {
  display: grid;
  gap: 22px;
}
@media (min-width: 640px) { .grid-2 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 900px) { .grid-3 { grid-template-columns: repeat(3, 1fr); } }

.card {
  background: var(--paper-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  padding: 28px;
  transition: transform 200ms ease, box-shadow 200ms ease, border-color 200ms ease;
}
.card:hover {
  transform: translateY(-4px);
  border-color: var(--circuit-blue);
  box-shadow: var(--shadow-card-hover);
}
.card-index {
  font-family: var(--font-mono);
  color: var(--circuit-blue);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  margin-bottom: 14px;
  display: block;
}
.card-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-s);
  background: var(--circuit-blue-tint);
  color: var(--circuit-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}
.card-icon svg { width: 22px; height: 22px; }
.card h3 { font-size: 1.18rem; margin-bottom: 10px; }
.card p { color: var(--ink-soft); font-size: 0.98rem; }
.card ul { margin-top: 14px; display: grid; gap: 8px; }
.card ul li {
  font-size: 0.92rem;
  color: var(--ink-soft);
  padding-left: 20px;
  position: relative;
}
.card ul li::before {
  content: "";
  position: absolute;
  left: 0; top: 8px;
  width: 8px; height: 8px;
  border: 2px solid var(--hazard-amber);
  border-radius: 2px;
}
.card-link {
  margin-top: 18px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--circuit-blue);
  font-weight: 600;
  font-size: 0.94rem;
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 500ms ease, transform 500ms ease;
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ===== Process rail (Kundenservice-Ablauf) ===== */
.process-rail {
  position: relative;
  display: grid;
  gap: 44px;
}
@media (min-width: 900px) {
  .process-rail {
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    padding-top: 34px;
  }
  .process-rail::before {
    content: "";
    position: absolute;
    top: 0;
    left: calc(12.5% - 1px);
    right: calc(12.5% - 1px);
    height: 2px;
    background: repeating-linear-gradient(90deg, var(--circuit-blue) 0 10px, transparent 10px 16px);
    opacity: 0.55;
  }
}

.process-step { position: relative; padding-left: 56px; }
@media (min-width: 900px) {
  .process-step { padding-left: 0; padding-top: 40px; text-align: left; }
}

.process-node {
  position: absolute;
  left: 0; top: 0;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--paper-alt);
  border: 2px solid var(--circuit-blue);
  color: var(--circuit-blue);
  font-family: var(--font-mono);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
}
@media (min-width: 900px) {
  .process-node { left: 50%; top: 0; transform: translateX(-50%); }
}
.process-step::before {
  content: "";
  position: absolute;
  left: 19px; top: 40px; bottom: -44px;
  width: 2px;
  background: var(--line);
}
.process-step:last-child::before { display: none; }
@media (min-width: 900px) {
  .process-step::before { display: none; }
}

.process-step h3 { font-size: 1.08rem; margin-bottom: 8px; }
.process-step p { color: var(--ink-soft); font-size: 0.95rem; }

/* ===== Testimonials ===== */
.quote-card {
  background: var(--paper-alt);
  border: 1px solid var(--line);
  border-left: 3px solid var(--hazard-amber);
  border-radius: var(--radius-m);
  padding: 26px 28px;
}
.quote-card p.quote-text { font-size: 1.02rem; color: var(--ink); margin-bottom: 16px; }
.quote-meta { font-family: var(--font-mono); font-size: 0.82rem; color: var(--ink-soft); }

/* ===== CTA banner ===== */
.cta-banner {
  background: var(--ink);
  color: #fff;
  border-radius: var(--radius-l);
  padding: clamp(36px, 6vw, 60px);
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  align-items: center;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.06) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.06) 1px, transparent 1px);
  background-size: 36px 36px;
  pointer-events: none;
}
.cta-banner h2 { color: #fff; font-size: clamp(1.5rem, 1.2rem + 1.2vw, 2.1rem); max-width: 520px; }
.cta-banner p { color: #B7C0D6; margin-top: 10px; max-width: 46ch; }
.cta-banner .btn-row { position: relative; z-index: 1; }
.cta-banner > div:first-child { position: relative; z-index: 1; }

/* ===== Footer ===== */
.site-footer { background: var(--footer-ink); color: #B7C0D6; }
.footer-top {
  display: grid;
  gap: 40px;
  padding-block: 56px;
}
@media (min-width: 760px) {
  .footer-top { grid-template-columns: 1.4fr 1fr 1fr 1fr; }
}
.footer-brand .logo { color: #fff; margin-bottom: 14px; }
.footer-brand p { font-size: 0.94rem; max-width: 34ch; }
.footer-col h4 {
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.footer-col ul { display: grid; gap: 10px; }
.footer-col a, .footer-col address { font-size: 0.94rem; font-style: normal; color: #B7C0D6; }
.footer-col a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-block: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
  font-size: 0.85rem;
  color: #7C8AA5;
}

/* ===== Page hero (Unterseiten) ===== */
.page-hero {
  padding-block: clamp(48px, 7vw, 80px) clamp(32px, 5vw, 56px);
  background: var(--paper-alt);
  border-bottom: 1px solid var(--line-soft);
}
.page-hero h1 { font-size: clamp(2.1rem, 1.7rem + 1.6vw, 3rem); max-width: 20ch; }
.page-hero p { color: var(--ink-soft); font-size: 1.08rem; max-width: 58ch; margin-top: 16px; }
.breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-faint);
  margin-bottom: 18px;
  letter-spacing: 0.03em;
}
.breadcrumb .sep { margin: 0 8px; }

/* ===== Notdienst banner ===== */
.emergency-banner {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  align-items: center;
  justify-content: space-between;
  background: var(--hazard-amber-tint);
  border: 1px solid #F0D6A3;
  border-radius: var(--radius-m);
  padding: 22px 26px;
  margin-bottom: 40px;
}
.emergency-banner h3 { font-size: 1.05rem; margin-bottom: 4px; }
.emergency-banner p { color: var(--ink-soft); font-size: 0.94rem; }

/* ===== Über uns ===== */
.story-grid {
  display: grid;
  gap: 44px;
  align-items: center;
  max-width: 760px;
}
.stat-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 12px;
}
@media (min-width: 640px) { .stat-row { grid-template-columns: repeat(4, 1fr); } }
.stat {
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  padding: 20px 18px;
  background: var(--paper-alt);
  text-align: center;
}
.stat .value {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 1.3rem + 1vw, 2.2rem);
  color: var(--circuit-blue);
}
.stat .label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-top: 4px;
}

.value-list { display: grid; gap: 22px; }
@media (min-width: 700px) { .value-list { grid-template-columns: repeat(2, 1fr); } }
.value-item { display: flex; gap: 16px; }
.value-item .card-icon { flex-shrink: 0; margin-bottom: 0; }
.value-item h3 { font-size: 1.05rem; margin-bottom: 6px; }
.value-item p { color: var(--ink-soft); font-size: 0.94rem; }

/* ===== Kontakt ===== */
.contact-grid {
  display: grid;
  gap: 32px;
}
@media (min-width: 960px) { .contact-grid { grid-template-columns: 0.9fr 1.1fr; } }

.info-card {
  background: var(--paper-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  padding: 30px;
}
.info-row {
  display: flex;
  gap: 14px;
  padding-block: 16px;
  border-top: 1px solid var(--line-soft);
}
.info-row:first-of-type { border-top: none; padding-top: 0; }
.info-row .card-icon { width: 38px; height: 38px; margin-bottom: 0; flex-shrink: 0; }
.info-row h4 { font-size: 0.98rem; margin-bottom: 4px; }
.info-row p, .info-row address { color: var(--ink-soft); font-size: 0.93rem; font-style: normal; }

.map-embed {
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  overflow: hidden;
  background: var(--paper-alt);
  height: 260px;
}
.map-embed iframe { width: 100%; height: 100%; border: 0; filter: grayscale(0.15) contrast(1.02); }

.form-card {
  background: var(--paper-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  padding: 30px;
}
.form-row { display: grid; gap: 8px; margin-bottom: 20px; }
.form-row.two { display: grid; gap: 20px; }
@media (min-width: 560px) { .form-row.two { grid-template-columns: repeat(2, 1fr); } }
label { font-size: 0.9rem; font-weight: 600; color: var(--ink); }
label .req { color: var(--copper); }
input, textarea, select {
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  padding: 12px 14px;
  background: var(--paper);
  min-height: 48px;
  transition: border-color 150ms ease, box-shadow 150ms ease;
}
textarea { min-height: 120px; resize: vertical; }
input:focus, textarea:focus, select:focus {
  border-color: var(--circuit-blue);
  box-shadow: 0 0 0 3px var(--circuit-blue-tint);
  outline: none;
}
.form-hint { font-size: 0.82rem; color: var(--ink-faint); margin-top: 4px; }
.form-success {
  display: none;
  align-items: flex-start;
  gap: 12px;
  background: #E9F9EF;
  border: 1px solid #B9E8C6;
  border-radius: var(--radius-m);
  padding: 18px 20px;
  margin-top: 18px;
  font-size: 0.94rem;
}
.form-success.is-visible { display: flex; }
.form-note {
  font-size: 0.8rem;
  color: var(--ink-faint);
  margin-top: 14px;
}

/* ===== Misc ===== */
.text-center { text-align: center; }
.mt-lg { margin-top: 40px; }