/* multirada.com — Landing Page Stylesheet
   Self-hosted Inter font, no external dependencies (DSGVO-konform) */

/* -----------------------------------------------------------------------
   Font-Face Declarations
   ----------------------------------------------------------------------- */

@font-face {
  font-family: "Inter";
  src: url("../assets/fonts/inter-regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Inter";
  src: url("../assets/fonts/inter-bold.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

/* -----------------------------------------------------------------------
   CSS Custom Properties (Design Tokens)
   ----------------------------------------------------------------------- */

:root {
  --color-bg: #0a0a0f;
  --color-bg-card: #12121a;
  --color-bg-nav: rgba(10, 10, 15, 0.92);
  --color-surface: #1a1a2e;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-primary: #6366f1;
  --color-primary-hover: #818cf8;
  --color-primary-glow: rgba(99, 102, 241, 0.25);
  --color-secondary: #8b5cf6;
  --color-text: #f1f5f9;
  --color-text-muted: #94a3b8;
  --color-text-subtle: #64748b;
  --font-sans: "Inter", system-ui, -apple-system, sans-serif;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --shadow-card: 0 1px 3px rgba(0,0,0,0.4), 0 8px 24px rgba(0,0,0,0.3);
  --shadow-glow: 0 0 40px var(--color-primary-glow);
  --transition: 220ms ease;
  --max-width: 1100px;
  --nav-height: 64px;
}

/* -----------------------------------------------------------------------
   Reset & Base
   ----------------------------------------------------------------------- */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

/* -----------------------------------------------------------------------
   Navigation
   ----------------------------------------------------------------------- */

nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-height);
  background: var(--color-bg-nav);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-text);
  transition: opacity var(--transition);
}

.nav-brand:hover {
  opacity: 0.85;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-links a {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius-full);
  transition: color var(--transition), background var(--transition);
}

.nav-links a:hover {
  color: var(--color-text);
  background: rgba(255,255,255,0.06);
}

.btn-nav {
  background: var(--color-primary);
  color: #fff !important;
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: background var(--transition), transform var(--transition) !important;
}

.btn-nav:hover {
  background: var(--color-primary-hover) !important;
  transform: translateY(-1px);
}

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

.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 5rem 1.5rem 4rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(99,102,241,0.15) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 80% 80%, rgba(139,92,246,0.08) 0%, transparent 60%);
  pointer-events: none;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(99,102,241,0.12);
  border: 1px solid rgba(99,102,241,0.3);
  color: var(--color-primary-hover);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-full);
  margin-bottom: 2rem;
}

.hero h1 {
  font-size: clamp(3rem, 8vw, 6.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, #f1f5f9 0%, #94a3b8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1.5rem;
}

.hero .tagline {
  font-size: clamp(1.1rem, 2.5vw, 1.4rem);
  color: var(--color-text-muted);
  max-width: 580px;
  line-height: 1.55;
  margin-bottom: 2.5rem;
}

.hero-cta-group {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 4rem;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--color-primary);
  color: #fff;
  font-weight: 600;
  font-size: 1rem;
  padding: 0.8rem 2rem;
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 0 60px var(--color-primary-glow);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: transparent;
  color: var(--color-text-muted);
  font-weight: 500;
  font-size: 1rem;
  padding: 0.8rem 2rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition), transform var(--transition);
}

.btn-secondary:hover {
  color: var(--color-text);
  border-color: rgba(255,255,255,0.2);
  transform: translateY(-2px);
}

/* -----------------------------------------------------------------------
   Features Section
   ----------------------------------------------------------------------- */

.features-section {
  padding: 6rem 1.5rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-label {
  text-align: center;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.section-headline {
  text-align: center;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: 1rem;
}

.section-sub {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 1.05rem;
  max-width: 520px;
  margin: 0 auto 3.5rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.feature {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.feature:hover {
  border-color: rgba(99,102,241,0.3);
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
}

.feature-icon {
  width: 44px;
  height: 44px;
  background: rgba(99,102,241,0.1);
  border: 1px solid rgba(99,102,241,0.2);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.2rem;
  font-size: 1.3rem;
}

.feature h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.6rem;
}

.feature p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

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

.cta-section {
  padding: 6rem 1.5rem;
  text-align: center;
}

.cta-box {
  max-width: 640px;
  margin: 0 auto;
  background: linear-gradient(135deg, rgba(99,102,241,0.1) 0%, rgba(139,92,246,0.08) 100%);
  border: 1px solid rgba(99,102,241,0.2);
  border-radius: var(--radius-lg);
  padding: 3.5rem 2.5rem;
}

.cta-box h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.cta-box p {
  color: var(--color-text-muted);
  font-size: 1rem;
  margin-bottom: 2rem;
}

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

footer {
  border-top: 1px solid var(--color-border);
  padding: 2rem 1.5rem;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-copy {
  font-size: 0.85rem;
  color: var(--color-text-subtle);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-links a {
  font-size: 0.85rem;
  color: var(--color-text-subtle);
  transition: color var(--transition);
}

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

/* -----------------------------------------------------------------------
   Legal Pages (Impressum / Datenschutz)
   ----------------------------------------------------------------------- */

.legal-page {
  max-width: 720px;
  margin: 0 auto;
  padding: 4rem 1.5rem 6rem;
}

.legal-page h1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 2rem;
  color: var(--color-text);
}

.legal-page h2 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-text);
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.legal-page p,
.legal-page li {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 0.5rem;
}

.legal-page ul {
  padding-left: 1.4rem;
  margin-bottom: 1rem;
}

.legal-page a {
  color: var(--color-primary-hover);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* -----------------------------------------------------------------------
   Responsive
   ----------------------------------------------------------------------- */

@media (max-width: 640px) {
  .nav-links .btn-secondary-sm {
    display: none;
  }

  .hero-cta-group {
    flex-direction: column;
    align-items: center;
  }

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