/* ==========================================================================
   vTrax Landingpage — Design-System "navy / crystal-glass"
   Farben abgeleitet aus vtrax-web/src/app.css
   ========================================================================== */

:root {
  --vtrax-navy: #05203a;
  --vtrax-navy-strong: #03141f;
  --vtrax-navy-soft: #0d3a5c;
  --vtrax-accent: #3fa9f5;
  --vtrax-ink: #0b1c2c;
  --vtrax-muted: #5b7387;
  --vtrax-bg: #f4f7fa;
  --vtrax-glass-bg: rgba(255, 255, 255, 0.65);
  --vtrax-glass-border: rgba(255, 255, 255, 0.45);
  --max-width: 1140px;
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--vtrax-ink);
  background: var(--vtrax-bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul,
ol {
  margin: 0;
  padding: 0;
}

h1,
h2,
h3 {
  margin: 0 0 0.5em;
  font-weight: 700;
  color: var(--vtrax-navy);
  line-height: 1.2;
}

p {
  margin: 0 0 1em;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--vtrax-accent);
  margin: 0 0 0.6em;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  padding: 0.85em 1.6em;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.btn-primary {
  background: var(--vtrax-navy);
  color: #fff;
  box-shadow: 0 10px 24px -8px rgba(5, 32, 58, 0.55);
}

.btn-primary:hover {
  background: var(--vtrax-navy-strong);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  border-color: rgba(5, 32, 58, 0.25);
  color: var(--vtrax-navy);
}

.btn-ghost:hover {
  border-color: var(--vtrax-navy);
  background: rgba(5, 32, 58, 0.05);
}

/* ---------- Glass card ---------- */

.glass-card {
  background: var(--vtrax-glass-bg);
  border: 1px solid var(--vtrax-glass-border);
  border-radius: var(--radius);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: 0 20px 45px -20px rgba(5, 32, 58, 0.35);
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(244, 247, 250, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(5, 32, 58, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-logo {
  height: 34px;
  width: auto;
}

.brand-name {
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--vtrax-navy);
  letter-spacing: -0.01em;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.primary-nav a {
  font-weight: 500;
  color: var(--vtrax-navy);
  font-size: 0.96rem;
  opacity: 0.85;
}

.primary-nav a:hover {
  opacity: 1;
}

.nav-cta {
  padding: 0.55em 1.3em;
  border-radius: 999px;
  background: var(--vtrax-navy);
  color: #fff !important;
  opacity: 1 !important;
}

.nav-cta:hover {
  background: var(--vtrax-navy-strong);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border: none;
  background: transparent;
  cursor: pointer;
  padding: 0;
}

.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--vtrax-navy);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  overflow: hidden;
  padding: 88px 0 96px;
}

.hero-glow {
  position: absolute;
  inset: -20% -10% auto -10%;
  height: 480px;
  background: radial-gradient(60% 60% at 30% 20%, rgba(63, 169, 245, 0.25), transparent 70%),
    radial-gradient(50% 50% at 80% 10%, rgba(5, 32, 58, 0.18), transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}

.hero-text h1 {
  font-size: clamp(2.1rem, 4vw, 3.1rem);
  letter-spacing: -0.02em;
}

.hero-lede {
  font-size: 1.1rem;
  color: var(--vtrax-muted);
  max-width: 46ch;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 8px;
}

/* Hero visual: stylised map card */

.hero-visual {
  display: flex;
  justify-content: center;
}

.map-card {
  position: relative;
  width: 100%;
  max-width: 380px;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  padding: 0;
}

.map-grid {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(5, 32, 58, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(5, 32, 58, 0.08) 1px, transparent 1px);
  background-size: 32px 32px;
}

.map-area {
  position: absolute;
  left: 12%;
  top: 18%;
  width: 42%;
  height: 40%;
  border: 2px dashed rgba(5, 32, 58, 0.35);
  border-radius: 10px;
  background: rgba(63, 169, 245, 0.08);
}

.map-track {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.map-track polyline {
  fill: none;
  stroke: var(--vtrax-navy);
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 6 6;
  opacity: 0.75;
}

.map-dot {
  position: absolute;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--vtrax-accent);
  box-shadow: 0 0 0 6px rgba(63, 169, 245, 0.25);
}

.map-dot::after {
  content: "";
  position: absolute;
  inset: -8px;
  border-radius: 50%;
  border: 2px solid rgba(63, 169, 245, 0.4);
  animation: pulse 2.4s ease-out infinite;
}

.dot-1 {
  left: 13%;
  top: 76%;
  background: var(--vtrax-navy);
}

.dot-2 {
  left: 56%;
  top: 38%;
}

.dot-3 {
  left: 84%;
  top: 18%;
  background: #2ecc71;
}

@keyframes pulse {
  0% {
    transform: scale(0.6);
    opacity: 0.8;
  }
  100% {
    transform: scale(1.8);
    opacity: 0;
  }
}

.map-badge {
  position: absolute;
  left: 16px;
  bottom: 16px;
  background: var(--vtrax-navy);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.5em 0.9em;
  border-radius: 999px;
  box-shadow: 0 8px 20px -8px rgba(5, 32, 58, 0.6);
}

/* ---------- Logos strip ---------- */

.logos-strip {
  border-top: 1px solid rgba(5, 32, 58, 0.08);
  border-bottom: 1px solid rgba(5, 32, 58, 0.08);
  background: #fff;
}

.logos-strip-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px 32px;
  padding: 22px 24px;
}

.logos-strip-inner span {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--vtrax-muted);
  white-space: nowrap;
}

/* ---------- Sections ---------- */

.section {
  padding: 88px 0;
}

.section-alt {
  background: #eef3f7;
}

/* ---------- Praxis / quote ---------- */

.section-praxis {
  padding: 72px 0;
  background: var(--vtrax-navy);
  position: relative;
  overflow: hidden;
}

.section-praxis::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(60% 80% at 85% 0%, rgba(63, 169, 245, 0.25), transparent 70%);
  pointer-events: none;
}

.praxis-inner {
  position: relative;
  display: flex;
  justify-content: center;
}

.praxis-card {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.18);
  max-width: 760px;
  padding: 44px 48px;
  text-align: center;
}

.praxis-quote-mark {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 3.5rem;
  line-height: 1;
  color: var(--vtrax-accent);
  margin-bottom: 0.1em;
}

.praxis-quote {
  color: #fff;
  font-size: 1.2rem;
  font-weight: 500;
  line-height: 1.55;
  max-width: 56ch;
  margin: 0 auto 1em;
}

.praxis-attribution {
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  margin: 0;
}

.section-head {
  max-width: 640px;
  margin: 0 auto 48px;
  text-align: center;
}

.section-head h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
}

.section-lede {
  color: var(--vtrax-muted);
  font-size: 1.05rem;
}

/* ---------- Feature grid ---------- */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.feature-card {
  background: #fff;
  border: 1px solid rgba(5, 32, 58, 0.08);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 40px -24px rgba(5, 32, 58, 0.4);
}

.feature-icon {
  font-size: 1.8rem;
  margin-bottom: 0.5em;
}

.feature-card h3 {
  font-size: 1.05rem;
  margin-bottom: 0.4em;
}

.feature-card p {
  color: var(--vtrax-muted);
  font-size: 0.95rem;
  margin: 0;
}

/* ---------- Platform cards ---------- */

.platform-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.platform-card {
  padding: 36px 32px;
}

.platform-tag {
  color: var(--vtrax-accent);
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1.2em;
}

.platform-card ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.platform-card li {
  position: relative;
  padding-left: 26px;
  color: var(--vtrax-ink);
  font-size: 0.97rem;
}

.platform-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--vtrax-accent);
}

/* ---------- API ---------- */

.api-demo-solo {
  max-width: 560px;
  margin: 0 auto;
  padding: 36px 40px;
  background: #fff;
}

.api-demo-tag {
  color: var(--vtrax-accent);
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 1.2em;
}

.api-demo-result {
  min-height: 64px;
}

.api-demo-status {
  color: var(--vtrax-muted);
  font-size: 0.95rem;
  margin: 0;
}

.api-demo-error {
  color: #b3401f;
}

.api-demo-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.api-demo-list li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 10px;
  background: #eef3f7;
}

.api-demo-name {
  font-weight: 600;
  color: var(--vtrax-navy);
  font-size: 0.95rem;
}

.api-demo-meta {
  color: var(--vtrax-muted);
  font-size: 0.85rem;
  white-space: nowrap;
}

/* ---------- Steps ---------- */

.steps {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}

.step {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 28px 22px;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid rgba(5, 32, 58, 0.08);
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--vtrax-navy);
  color: #fff;
  font-weight: 700;
}

.step h3 {
  font-size: 1.02rem;
  margin-bottom: 0.3em;
}

.step p {
  color: var(--vtrax-muted);
  font-size: 0.93rem;
  margin: 0;
}

/* ---------- CTA ---------- */

.section-cta {
  padding-bottom: 110px;
}

.cta-inner {
  display: flex;
  justify-content: center;
}

.cta-card {
  text-align: center;
  max-width: 640px;
  padding: 56px 48px;
}

.cta-card h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

.cta-card p {
  color: var(--vtrax-muted);
  margin-bottom: 1.6em;
}

/* ---------- Footer ---------- */

.site-footer {
  background: var(--vtrax-navy);
  color: rgba(255, 255, 255, 0.75);
  padding: 36px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-brand .brand-logo {
  background: #fff;
  border-radius: 8px;
  padding: 4px 6px;
}

.footer-brand .brand-name {
  color: #fff;
}

.footer-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 20px;
}

.footer-meta .footer-brand {
  flex-shrink: 0;
}

.footer-legal {
  display: flex;
  gap: 16px;
  flex-shrink: 0;
}

.footer-legal a {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.88rem;
  text-decoration: none;
}

.footer-legal a:hover {
  color: #fff;
  text-decoration: underline;
}

.footer-inner p {
  margin: 0;
  font-size: 0.88rem;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 960px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .steps {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 860px) {
  .hero-inner {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    order: -1;
  }

  .map-card {
    max-width: 320px;
    margin: 0 auto;
  }
}

@media (max-width: 720px) {
  .nav-toggle {
    display: flex;
  }

  .primary-nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 8px 24px 20px;
    border-bottom: 1px solid rgba(5, 32, 58, 0.08);
    box-shadow: 0 16px 30px -20px rgba(5, 32, 58, 0.4);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.18s ease, opacity 0.18s ease;
  }

  .primary-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .primary-nav a {
    width: 100%;
    padding: 12px 0;
    border-bottom: 1px solid rgba(5, 32, 58, 0.06);
  }

  .nav-cta {
    margin-top: 8px;
    text-align: center;
  }

  .platform-grid {
    grid-template-columns: 1fr;
  }

  .api-demo-solo {
    padding: 28px 24px;
  }

  .cta-card {
    padding: 40px 24px;
  }

  .praxis-card {
    padding: 32px 24px;
  }

  .praxis-quote {
    font-size: 1.05rem;
  }
}

@media (max-width: 600px) {
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .steps {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 56px 0 64px;
  }

  .section {
    padding: 64px 0;
  }

  .logos-strip-inner {
    justify-content: center;
    text-align: center;
  }
}