:root {
  --bg: #0b0f14;
  --bg-alt: #101620;
  --panel: #151b24;
  --panel-hover: #1a2230;
  --border: #2a3548;
  --text: #e8edf4;
  --muted: #8b9cb3;
  --accent: #3d8bfd;
  --accent-hover: #5a9eff;
  --accent-soft: rgba(61, 139, 253, 0.12);
  --online: #3d9b6a;
  --max-w: 1120px;
  --header-h: 4rem;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
}

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

img {
  max-width: 100%;
  height: auto;
}

.site-container {
  width: min(100% - 2rem, var(--max-w));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  border-bottom: 1px solid var(--border);
  background: rgba(11, 15, 20, 0.92);
  backdrop-filter: blur(10px);
}

.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-logo {
  display: block;
  height: 1.75rem;
  width: auto;
}

.brand-sub {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.site-nav a:not(.btn) {
  font-size: 0.92rem;
  color: var(--muted);
  transition: color 0.15s;
}

.site-nav a:not(.btn):hover {
  color: var(--text);
}

.nav-toggle {
  display: none;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  border-radius: 8px;
  padding: 0.4rem 0.65rem;
  font-size: 1.1rem;
  cursor: pointer;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.25rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.btn-sm {
  padding: 0.45rem 0.9rem;
  font-size: 0.88rem;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-secondary {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}

.btn-secondary:hover {
  background: var(--panel-hover);
  border-color: #3d4d66;
}

.hero {
  padding: 4rem 0 3.5rem;
  background:
    radial-gradient(ellipse 80% 60% at 70% -10%, rgba(61, 139, 253, 0.18), transparent),
    radial-gradient(ellipse 50% 40% at 10% 100%, rgba(61, 139, 253, 0.08), transparent),
    var(--bg);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
}

.eyebrow {
  margin: 0 0 0.75rem;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero-copy h1 {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 4vw, 2.85rem);
  line-height: 1.12;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.hero-lead {
  margin: 0 0 1.75rem;
  font-size: 1.08rem;
  color: var(--muted);
  max-width: 36rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

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

.hero-card {
  width: 100%;
  max-width: 320px;
  padding: 1.35rem;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: linear-gradient(160deg, var(--panel) 0%, #121820 100%);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.35);
}

.hero-card-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.92rem;
  margin-bottom: 0.35rem;
}

.hero-card-row.muted {
  color: var(--muted);
  margin-bottom: 1.25rem;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.dot.online {
  background: var(--online);
  box-shadow: 0 0 8px rgba(61, 155, 106, 0.6);
}

.hero-card-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.hero-card-stats div {
  text-align: center;
}

.hero-card-stats strong {
  display: block;
  font-size: 1.15rem;
}

.hero-card-stats span {
  font-size: 0.75rem;
  color: var(--muted);
}

.section {
  padding: 4rem 0;
}

.section-alt {
  background: var(--bg-alt);
}

.section-header {
  max-width: 40rem;
  margin-bottom: 2.5rem;
}

.section-header h2,
.audiences-title {
  margin: 0 0 0.75rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
  letter-spacing: -0.02em;
}

.section-lead {
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.feature-card {
  padding: 1.35rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--panel);
  transition: border-color 0.15s, background 0.15s;
}

.feature-card:hover {
  border-color: #3d4d66;
  background: var(--panel-hover);
}

.feature-icon {
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 1.15rem;
  margin-bottom: 1rem;
}

.feature-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
}

.feature-card p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--muted);
}

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.step {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.step-num {
  flex-shrink: 0;
  width: 2.25rem;
  height: 2.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 700;
  font-size: 0.95rem;
}

.step h3 {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
}

.step p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.audiences {
  padding-top: 2.5rem;
  padding-bottom: 2.5rem;
}

.audiences-title {
  text-align: center;
  margin-bottom: 1.25rem;
}

.audience-tags {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.65rem;
}

.audience-tags li {
  padding: 0.45rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--panel);
  font-size: 0.9rem;
  color: var(--muted);
}

.cta-box {
  text-align: center;
  padding: 2.5rem 1.5rem;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: linear-gradient(180deg, var(--panel) 0%, var(--bg-alt) 100%);
}

.cta-box h2 {
  margin: 0 0 0.65rem;
  font-size: clamp(1.4rem, 3vw, 1.85rem);
}

.cta-box p {
  margin: 0 0 1.5rem;
  color: var(--muted);
  max-width: 32rem;
  margin-inline: auto;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0 1.5rem;
  background: var(--bg-alt);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr auto;
  gap: 2rem;
  align-items: start;
}

.footer-brand {
  margin: 0 0 0.35rem;
  font-weight: 700;
  font-size: 1.05rem;
}

.footer-tagline {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.footer-links a {
  color: var(--muted);
  font-size: 0.92rem;
}

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

.footer-lang-label {
  margin: 0 0 0.5rem;
  font-size: 0.8rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.lang-buttons {
  display: flex;
  gap: 0.35rem;
}

.lang-buttons button {
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--muted);
  border-radius: 6px;
  padding: 0.35rem 0.55rem;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
}

.lang-buttons button:hover,
.lang-buttons button.active {
  color: var(--text);
  border-color: var(--accent);
  background: var(--accent-soft);
}

.footer-bottom {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.footer-bottom p {
  margin: 0;
  font-size: 0.82rem;
  color: var(--muted);
}

@media (max-width: 960px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-panel {
    order: -1;
  }

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

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

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

  .site-nav {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    padding: 1rem;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
  }

  .site-nav.open {
    display: flex;
  }

  .site-nav a {
    padding: 0.5rem 0;
  }

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

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