/* MK Software Architecture - Static bilingual website */

:root {
  --bg: #080b12;
  --bg-soft: #111827;
  --card: rgba(255, 255, 255, 0.075);
  --text: #f8fafc;
  --muted: #b6c2d6;
  --accent: #7c3aed;
  --accent-2: #06b6d4;
  --border: rgba(255, 255, 255, 0.14);
  --white-soft: rgba(255, 255, 255, 0.92);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 18% 12%, rgba(124, 58, 237, 0.28), transparent 28rem),
    radial-gradient(circle at 85% 78%, rgba(6, 182, 212, 0.18), transparent 30rem),
    linear-gradient(135deg, var(--bg) 0%, var(--bg-soft) 100%);
}

a {
  color: inherit;
}

.container {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(20px);
  background: rgba(8, 11, 18, 0.78);
  border-bottom: 1px solid var(--border);
}

.nav {
  height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.logo-link {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.logo-mark {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.85rem;
  display: grid;
  place-items: center;
  font-weight: 800;
  letter-spacing: -0.08em;
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.95), rgba(6, 182, 212, 0.95));
  box-shadow: 0 0 28px rgba(124, 58, 237, 0.28);
}

.logo-text {
  display: grid;
  line-height: 1.15;
}

.logo-text strong {
  font-size: 0.98rem;
}

.logo-text span {
  color: var(--muted);
  font-size: 0.8rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.93rem;
}

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

.lang-switch {
  display: inline-flex;
  gap: 0.4rem;
  padding: 0.35rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
}

.lang-switch a {
  padding: 0.35rem 0.55rem;
  border-radius: 999px;
  text-decoration: none;
  color: var(--muted);
  font-size: 0.82rem;
}

.lang-switch a.active {
  background: rgba(255, 255, 255, 0.12);
  color: var(--text);
}

.hero {
  padding: clamp(4rem, 9vw, 8rem) 0 4rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2rem;
  align-items: center;
}

.eyebrow {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.82rem;
  margin-bottom: 1.25rem;
}

h1 {
  margin: 0;
  font-size: clamp(2.8rem, 8vw, 6.2rem);
  line-height: 0.95;
  letter-spacing: -0.075em;
}

h2 {
  margin: 0 0 1rem;
  font-size: clamp(1.9rem, 4vw, 3rem);
  letter-spacing: -0.045em;
}

h3 {
  margin: 0 0 0.7rem;
  font-size: 1.15rem;
}

.lead {
  margin: 1.6rem 0 0;
  max-width: 42rem;
  color: var(--muted);
  font-size: clamp(1.05rem, 2.2vw, 1.3rem);
  line-height: 1.7;
}

.highlight {
  color: var(--white-soft);
  font-weight: 700;
}

.actions {
  margin-top: 2.2rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.9rem;
  padding: 0.85rem 1.15rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  text-decoration: none;
  color: var(--text);
  background: rgba(255, 255, 255, 0.075);
}

.button.primary {
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.95), rgba(6, 182, 212, 0.95));
  border-color: transparent;
}

.hero-card, .card {
  border: 1px solid var(--border);
  border-radius: 28px;
  background: var(--card);
  backdrop-filter: blur(20px);
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.25);
}

.hero-card {
  padding: 2rem;
}

.metric {
  padding: 1.15rem 0;
  border-bottom: 1px solid var(--border);
}

.metric:last-child {
  border-bottom: 0;
}

.metric strong {
  display: block;
  font-size: 1.35rem;
}

.metric span {
  color: var(--muted);
  line-height: 1.6;
}

.section {
  padding: 3.5rem 0;
}

.section-intro {
  max-width: 720px;
  color: var(--muted);
  line-height: 1.75;
  font-size: 1.05rem;
}

.grid {
  display: grid;
  gap: 1rem;
}

.grid.three {
  grid-template-columns: repeat(3, 1fr);
}

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

.card {
  padding: 1.5rem;
}

.card p, .card li {
  color: var(--muted);
  line-height: 1.7;
}

.card ul {
  margin: 0;
  padding-left: 1.1rem;
}

.product-note {
  border-left: 3px solid var(--accent-2);
  padding-left: 1rem;
}

.info-list {
  display: grid;
  gap: 0.8rem;
  margin-top: 1.5rem;
}

.info-item {
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.045);
}

.info-item strong {
  display: block;
  margin-bottom: 0.25rem;
}

.info-item span, .info-item a {
  color: var(--muted);
}

.legal-content {
  max-width: 900px;
}

.legal-content p, .legal-content li {
  color: var(--muted);
  line-height: 1.75;
}

.site-footer {
  margin-top: 4rem;
  padding: 2rem 0;
  border-top: 1px solid var(--border);
  color: var(--muted);
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--muted);
  text-decoration: none;
}

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

@media (max-width: 860px) {
  .nav {
    height: auto;
    padding: 1rem 0;
    align-items: flex-start;
    flex-direction: column;
  }

  .hero-grid,
  .grid.three,
  .grid.two {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 3rem;
  }
}