:root {
  --bg: #0b1220;
  --panel: #111a2e;
  --panel-soft: #0f172a;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --primary: #1e90ff;
  --primary-strong: #0068d6;
  --border: #233252;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Inter", Arial, sans-serif;
  color: var(--text);
  background: radial-gradient(circle at 10% 0%, #112042 0%, var(--bg) 45%);
  line-height: 1.55;
}

.container {
  width: min(1120px, 92%);
  margin: 0 auto;
}

/* NAV */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(8px);
  background: rgba(8, 13, 25, 0.75);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  min-height: 72px;
}

.brand {
  color: var(--text);
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  letter-spacing: 0.2px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.brand-logo {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.nav-links {
  display: inline-flex;
  gap: 18px;
  margin-left: auto;
}

.nav-links a {
  color: #c5cfdf;
  text-decoration: none;
  font-size: 0.92rem;
}

.nav-links a:hover {
  color: #ffffff;
}

/* HERO */
.hero {
  padding: 72px 0 64px;
  position: relative;
  isolation: isolate;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(ellipse at 70% 30%, rgba(30, 144, 255, 0.12) 0%, transparent 60%),
    url("./assets/hero-3d-bg.svg") right center / cover no-repeat;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 1px;
  background: rgba(255, 255, 255, 0.06);
  z-index: -1;
}

.hero-center {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-logo {
  width: clamp(320px, 45vw, 540px);
  height: auto;
  object-fit: contain;
  margin-bottom: 24px;
  filter: drop-shadow(0 8px 32px rgba(30, 144, 255, 0.15));
}

.hero-tagline {
  margin: 0 0 10px;
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--primary);
}

h1 {
  margin: 0 0 14px;
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  line-height: 1.12;
}

h2 {
  margin: 0 0 14px;
  font-size: clamp(1.35rem, 2vw, 1.8rem);
}

h3 {
  margin: 0 0 8px;
  font-size: 1.15rem;
}

.lead {
  margin: 0;
  max-width: 62ch;
  color: var(--muted);
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  gap: 10px;
  margin-top: 24px;
  flex-wrap: wrap;
  justify-content: center;
}

.badge {
  display: inline-block;
  margin: 0 0 12px;
  padding: 6px 12px;
  border: 1px solid rgba(30, 144, 255, 0.45);
  color: #a8d6ff;
  border-radius: 999px;
  font-size: 0.85rem;
}

/* BUTTONS */
.btn {
  display: inline-block;
  padding: 11px 18px;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.95rem;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-strong));
  color: white;
  box-shadow: 0 4px 18px rgba(30, 144, 255, 0.25);
}

.btn-primary:hover {
  box-shadow: 0 6px 24px rgba(30, 144, 255, 0.35);
}

.btn-outline {
  border: 1px solid var(--border);
  color: var(--text);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

/* SECTIONS */
.section {
  padding: 56px 0;
}

.section-alt {
  background: rgba(11, 18, 32, 0.55);
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.section-title {
  text-align: center;
  margin-bottom: 28px;
}

/* PILLAR CARDS (3 Kernbereiche) */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.pillar-card {
  background: linear-gradient(180deg, rgba(19, 31, 55, 0.95), var(--panel));
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 16px;
  padding: 24px 22px;
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.pillar-card:hover {
  border-color: rgba(30, 144, 255, 0.35);
  transform: translateY(-3px);
}

.pillar-highlight {
  border-color: rgba(30, 144, 255, 0.3);
  background: linear-gradient(180deg, rgba(20, 38, 72, 0.95), var(--panel));
  box-shadow: 0 0 30px rgba(30, 144, 255, 0.08);
}

.pillar-icon {
  width: 56px;
  height: 56px;
  margin-bottom: 14px;
}

.pillar-icon svg {
  width: 100%;
  height: 100%;
}

.pillar-card p {
  color: var(--muted);
  margin: 0 0 12px;
  flex-grow: 1;
}

.pillar-features {
  list-style: none;
  padding: 0;
  margin: 0 0 16px;
}

.pillar-features li {
  color: var(--muted);
  font-size: 0.9rem;
  padding: 5px 0 5px 18px;
  position: relative;
}

.pillar-features li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--primary);
  opacity: 0.65;
}

.pillar-cta {
  margin-top: auto;
  text-align: center;
}

/* STEPS (Prozess) */
.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.step-card {
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(255, 255, 255, 0.02);
  border-radius: 14px;
  padding: 20px;
  text-align: center;
}

.step-num {
  display: block;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 6px;
}

.step-card strong {
  display: block;
  margin-bottom: 6px;
}

.step-card p {
  color: var(--muted);
  margin: 0;
  font-size: 0.9rem;
}

/* CONTACT */
.contact-box {
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
}

.contact-box .lead {
  margin: 0 auto 20px;
}

.contact-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
}

/* FOOTER */
.site-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 24px 0 36px;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 0.92rem;
}

.footer-content a {
  color: #c5cfdf;
  text-decoration: none;
}

.footer-content a:hover {
  color: #ffffff;
}

/* RESPONSIVE */
@media (max-width: 900px) {
  .nav-links {
    display: none;
  }

  .grid-3 {
    grid-template-columns: 1fr;
  }

  .grid-4 {
    grid-template-columns: 1fr 1fr;
  }

  .hero-logo {
    width: clamp(280px, 70vw, 480px);
  }
}

/* COOKIE BANNER */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(8, 13, 25, 0.95);
  backdrop-filter: blur(10px);
  border-top: 1px solid rgba(30, 144, 255, 0.2);
  padding: 16px 0;
}

.cookie-inner {
  width: min(1120px, 92%);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.cookie-inner p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.cookie-inner a {
  color: var(--primary);
  text-decoration: underline;
}

.cookie-actions {
  flex-shrink: 0;
}

@media (max-width: 550px) {
  .grid-4 {
    grid-template-columns: 1fr;
  }
}