/* ===== Variables ===== */
:root {
  --bg-dark: #0a0a0f;
  --bg-card: rgba(255, 255, 255, 0.04);
  --border-card: rgba(255, 255, 255, 0.08);
  --text-primary: #f5f5f7;
  --text-secondary: rgba(255, 255, 255, 0.7);
  --text-muted: rgba(255, 255, 255, 0.5);
  --accent: #6366f1;
  --accent-glow: rgba(99, 102, 241, 0.4);
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --section-padding: clamp(5rem, 12vw, 10rem);
  --container-max: 1100px;
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--text-primary);
  background: var(--bg-dark);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.6;
}

/* ===== Galaxy Background ===== */
.galaxy-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background: radial-gradient(ellipse 120% 80% at 50% 0%, #1a1a2e 0%, #0f0f1a 40%, #0a0a0f 100%);
}

/* Stars layers */
.stars {
  position: absolute;
  inset: 0;
  background-repeat: repeat;
  opacity: 0.6;
}

.stars-1 {
  background-image: radial-gradient(2px 2px at 20px 30px, #fff, transparent),
    radial-gradient(2px 2px at 40px 70px, rgba(255,255,255,0.8), transparent),
    radial-gradient(1px 1px at 90px 40px, #fff, transparent),
    radial-gradient(2px 2px at 130px 80px, rgba(255,255,255,0.6), transparent),
    radial-gradient(1px 1px at 160px 120px, #fff, transparent);
  background-size: 200px 200px;
  animation: twinkle 8s ease-in-out infinite;
}

.stars-2 {
  background-image: radial-gradient(1px 1px at 50px 160px, #fff, transparent),
    radial-gradient(1px 1px at 100px 200px, rgba(255,255,255,0.7), transparent),
    radial-gradient(2px 2px at 180px 50px, #fff, transparent),
    radial-gradient(1px 1px at 220px 180px, rgba(255,255,255,0.5), transparent);
  background-size: 250px 250px;
  animation: twinkle 12s ease-in-out infinite 1s;
}

.stars-3 {
  background-image: radial-gradient(1px 1px at 70px 90px, rgba(255,255,255,0.9), transparent),
    radial-gradient(1px 1px at 150px 140px, #fff, transparent),
    radial-gradient(2px 2px at 250px 60px, rgba(255,255,255,0.6), transparent);
  background-size: 300px 300px;
  animation: twinkle 10s ease-in-out infinite 2s;
}

@keyframes twinkle {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 0.9; }
}

/* Glow orbs */
.glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.15;
  pointer-events: none;
}

.glow-1 {
  width: 400px;
  height: 400px;
  background: var(--accent);
  top: -100px;
  right: -100px;
  animation: float 20s ease-in-out infinite;
}

.glow-2 {
  width: 300px;
  height: 300px;
  background: #8b5cf6;
  bottom: 20%;
  left: -80px;
  animation: float 25s ease-in-out infinite 5s;
}

.glow-3 {
  width: 250px;
  height: 250px;
  background: #06b6d4;
  bottom: -50px;
  right: 20%;
  opacity: 0.1;
  animation: float 18s ease-in-out infinite 10s;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -20px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}

/* Abstract planets */
.planet {
  position: absolute;
  border-radius: 50%;
  filter: blur(1px);
  opacity: 0.2;
}

.planet-1 {
  width: 120px;
  height: 120px;
  background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.3), transparent 60%),
    radial-gradient(circle, rgba(99, 102, 241, 0.3) 0%, transparent 70%);
  top: 15%;
  right: 15%;
  animation: planet-float 22s ease-in-out infinite;
}

.planet-2 {
  width: 80px;
  height: 80px;
  background: radial-gradient(circle at 40% 40%, rgba(255,255,255,0.2), transparent 60%),
    radial-gradient(circle, rgba(139, 92, 246, 0.25) 0%, transparent 70%);
  bottom: 25%;
  left: 10%;
  animation: planet-float 28s ease-in-out infinite 7s;
}

.planet-3 {
  width: 60px;
  height: 60px;
  background: radial-gradient(circle at 35% 35%, rgba(255,255,255,0.15), transparent 60%),
    radial-gradient(circle, rgba(6, 182, 212, 0.2) 0%, transparent 70%);
  top: 50%;
  left: 25%;
  animation: planet-float 18s ease-in-out infinite 3s;
}

@keyframes planet-float {
  0%, 100% { transform: translate(0, 0); }
  25% { transform: translate(15px, -25px); }
  50% { transform: translate(-10px, 15px); }
  75% { transform: translate(20px, 10px); }
}

/* ===== Layout ===== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

main {
  position: relative;
  z-index: 1;
}

/* ===== Typography ===== */
.section-headline {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 2rem;
  color: var(--text-primary);
}

.lead {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  color: var(--text-secondary);
  max-width: 720px;
  line-height: 1.7;
}

/* ===== Hero ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: var(--section-padding) 0;
}

.hero-content {
  text-align: center;
}

.hero-label {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.hero-headline {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(3rem, 10vw, 5.5rem);
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin-bottom: 1.5rem;
  background: linear-gradient(180deg, #fff 0%, rgba(255,255,255,0.85) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subline {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 520px;
  margin: 0 auto 2.5rem;
  line-height: 1.6;
}

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  padding: 1rem 2rem;
  border-radius: 12px;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, #8b5cf6 100%);
  color: #fff;
  box-shadow: 0 4px 24px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px var(--accent-glow);
}

.btn-full {
  width: 100%;
}

/* ===== Sections ===== */
.section {
  padding: var(--section-padding) 0;
}

.section-problem .cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.section-positioning .positioning-content {
  max-width: 720px;
}

.section-vision .vision-card {
  max-width: 680px;
  margin-top: 1.5rem;
  padding: 2.5rem;
}

.vision-text {
  font-size: clamp(1.1rem, 2vw, 1.3rem);
  color: var(--text-secondary);
  line-height: 1.75;
}

/* ===== Glassmorphism Cards ===== */
.card.glass,
.vision-card.glass,
.contact-form.glass {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-card);
  border-radius: 20px;
  padding: 2rem;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.card.glass:hover,
.vision-card.glass:hover {
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.card h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ===== Contact Form ===== */
.contact-form {
  max-width: 560px;
  margin-top: 2rem;
  padding: 2.5rem;
}

.form-row {
  margin-bottom: 1.5rem;
}

.form-row label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.form-row input,
.form-row textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 0.875rem 1rem;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-card);
  border-radius: 12px;
  color: var(--text-primary);
  transition: border-color 0.2s, background 0.2s;
}

.form-row input::placeholder,
.form-row textarea::placeholder {
  color: var(--text-muted);
}

.form-row input:focus,
.form-row textarea:focus {
  outline: none;
  border-color: rgba(99, 102, 241, 0.5);
  background: rgba(255, 255, 255, 0.08);
}

.form-row textarea {
  resize: vertical;
  min-height: 120px;
}

.contact-form .btn {
  margin-top: 0.5rem;
}

/* ===== Footer ===== */
.footer {
  padding: 2.5rem 0;
  border-top: 1px solid var(--border-card);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 2rem;
}

.footer-links a {
  font-size: 0.9rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--text-secondary);
}

/* ===== Scroll animations ===== */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger cards */
.section-problem .card.animate-on-scroll:nth-child(1) { transition-delay: 0.1s; }
.section-problem .card.animate-on-scroll:nth-child(2) { transition-delay: 0.2s; }
.section-problem .card.animate-on-scroll:nth-child(3) { transition-delay: 0.3s; }

/* ===== Legal pages (Impressum, Datenschutz, AGB) ===== */
.legal-page {
  padding-bottom: 0;
}

.legal-header {
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border-card);
}

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

.legal-back {
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}

.legal-back:hover {
  color: var(--text-primary);
}

.legal-brand {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-primary);
  text-decoration: none;
}

.legal-content {
  max-width: 720px;
  margin: var(--section-padding) auto;
  padding: 2.5rem 2.5rem 3rem !important;
}

.legal-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.legal-content .legal-lead {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.legal-content section {
  margin-bottom: 2.5rem;
}

.legal-content section:last-of-type {
  margin-bottom: 0;
}

.legal-content h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.35rem;
  margin: 2rem 0 0.75rem;
  color: var(--text-primary);
}

.legal-content h2:first-of-type {
  margin-top: 0;
}

.legal-content h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.05rem;
  margin: 1.25rem 0 0.5rem;
  color: var(--text-secondary);
}

.legal-content p,
.legal-content ul {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1rem;
}

.legal-content ul {
  padding-left: 1.5rem;
  margin-top: 0.5rem;
}

.legal-content li {
  margin-bottom: 0.5rem;
}

.legal-content a {
  color: var(--accent);
  text-decoration: none;
}

.legal-content a:hover {
  text-decoration: underline;
}

/* ===== Responsive ===== */
@media (max-width: 640px) {
  .hero-headline {
    font-size: 2.5rem;
  }

  .section-headline {
    font-size: 1.875rem;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }

  .legal-content {
    padding: 1.5rem 1.25rem 2rem !important;
  }
}