@layer base, components, utilities;

@layer base {
  :root {
    --bg: #0b0f19;
    --surface: rgba(255, 255, 255, 0.03);
    --surface-hover: rgba(255, 255, 255, 0.06);
    --text: #f8fafc;
    --text-muted: #94a3b8;
    --accent: #8b5cf6;
    --accent-glow: rgba(139, 92, 246, 0.35);
    --glass: rgba(15, 23, 42, 0.65);
    --border: rgba(255, 255, 255, 0.08);
    --radius: 16px;
    --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --font-main: "Plus Jakarta Sans", system-ui, -apple-system, sans-serif;
  }

  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
  body {
    font-family: var(--font-main);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
  }
  a { color: inherit; text-decoration: none; }
  button { font: inherit; background: none; border: none; cursor: pointer; }
  img { max-width: 100%; display: block; }
}

@layer components {
  .container { max-width: 1120px; margin: 0 auto; padding: 0 clamp(1.2rem, 5vw, 3rem); }
  
  .bg-mesh {
    position: fixed; inset: 0; z-index: -2;
    background: 
      radial-gradient(ellipse at 20% 30%, rgba(139, 92, 246, 0.15) 0%, transparent 50%),
      radial-gradient(ellipse at 80% 70%, rgba(59, 130, 246, 0.12) 0%, transparent 50%),
      radial-gradient(ellipse at 50% 50%, rgba(236, 72, 153, 0.08) 0%, transparent 60%),
      var(--bg);
    animation: mesh-shift 18s ease infinite alternate;
  }
  @keyframes mesh-shift {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
  }

  /* Header */
  .header {
    position: sticky; top: 0; z-index: 50;
    backdrop-filter: blur(14px) saturate(120%);
    background: var(--glass);
    border-bottom: 1px solid var(--border);
  }
  .header__inner { display: flex; align-items: center; justify-content: space-between; padding: 1.1rem 0; }
  .logo { font-weight: 800; font-size: 1.35rem; letter-spacing: -0.02em; display: flex; align-items: center; gap: 0.5rem; }
  .nav { display: flex; gap: clamp(1rem, 3vw, 1.8rem); align-items: center; flex-wrap: wrap; }
  .nav a { font-size: 0.92rem; color: var(--text-muted); font-weight: 500; transition: color var(--transition); position: relative; }
  .nav a:hover { color: var(--text); }
  .nav a::after {
    content: ""; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px;
    background: var(--accent); transition: width var(--transition);
  }
  .nav a:hover::after { width: 100%; }

  /* Buttons */
  .btn {
    display: inline-flex; align-items: center; gap: 0.6rem;
    padding: 0.9rem 1.8rem; border-radius: 99px; font-weight: 600;
    transition: all var(--transition); position: relative; overflow: hidden;
  }
  .btn-primary {
    background: linear-gradient(135deg, var(--accent), #6d28d9);
    color: #fff; box-shadow: 0 6px 20px var(--accent-glow);
  }
  .btn-primary:hover { transform: translateY(-3px); box-shadow: 0 12px 28px var(--accent-glow); }
  .btn-ghost { border: 1px solid var(--border); color: var(--text); }
  .btn-ghost:hover { background: var(--surface-hover); border-color: var(--accent); }

  /* Hero */
  .hero { min-height: 85vh; display: flex; align-items: center; text-align: center; position: relative; padding: 4rem 0; }
  .hero__inner { max-width: 820px; margin: 0 auto; position: relative; z-index: 1; }
  .hero__badge {
    display: inline-block; padding: 0.5rem 1rem; background: var(--surface);
    border: 1px solid var(--border); border-radius: 99px; font-size: 0.82rem;
    color: var(--text-muted); margin-bottom: 1.8rem; letter-spacing: 0.02em;
  }
  .hero__title {
    font-size: clamp(2.8rem, 7vw, 5rem); line-height: 1.02; font-weight: 800;
    letter-spacing: -0.03em; margin-bottom: 1.2rem;
    background: linear-gradient(180deg, #f8fafc 30%, #a78bfa 100%);
    -webkit-background-clip: text; background-clip: text; color: transparent;
  }
  .hero__subtitle {
    font-size: clamp(1.15rem, 2.8vw, 1.35rem); color: var(--text-muted);
    max-width: 620px; margin: 0 auto 2.5rem; line-height: 1.4;
  }
  .hero__deco { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); pointer-events: none; }
  .deco__ring {
    position: absolute; border-radius: 50%; border: 1px solid var(--border);
    opacity: 0.4; animation: pulse-ring 4s ease-in-out infinite alternate;
  }
  .deco__ring:nth-child(1) { width: 280px; height: 280px; top: -140px; left: -140px; }
  .deco__ring:nth-child(2) { width: 420px; height: 420px; top: -210px; left: -210px; animation-delay: 1s; }
  .deco__ring:nth-child(3) { width: 560px; height: 560px; top: -280px; left: -280px; animation-delay: 2s; }
  @keyframes pulse-ring {
    0% { transform: scale(0.95); opacity: 0.3; }
    100% { transform: scale(1.05); opacity: 0.5; }
  }

  /* Manifesto */
  .manifesto { padding: 5rem 0; }
  .glass-card {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius); padding: clamp(2rem, 4vw, 3rem);
    backdrop-filter: blur(12px) saturate(110%);
    max-width: 780px; margin: 0 auto; position: relative;
  }
  .glass-card h2 { font-size: clamp(1.9rem, 4.5vw, 2.6rem); margin-bottom: 1rem; }
  .glass-card p { color: var(--text-muted); font-size: 1.05rem; line-height: 1.5; }
  .manifesto__note {
    margin-top: 1.8rem; font-size: 0.88rem; color: #64748b;
    border-left: 3px solid var(--accent); padding-left: 1.1rem;
    background: linear-gradient(90deg, rgba(139, 92, 246, 0.05), transparent);
    padding: 0.8rem 0 0.8rem 1.1rem; border-radius: 0 8px 8px 0;
  }

  /* Steps */
  .steps { padding: 5rem 0; }
  .section__title { text-align: center; font-size: clamp(2.1rem, 5vw, 3rem); margin-bottom: 3.5rem; font-weight: 700; }
  .steps__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 2rem; }
  .step-card {
    background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 2.2rem 1.8rem; transition: transform var(--transition), background var(--transition), box-shadow var(--transition);
  }
  .step-card:hover {
    background: var(--surface-hover); transform: translateY(-6px);
    box-shadow: 0 12px 30px rgba(0,0,0,0.3); border-color: rgba(255,255,255,0.12);
  }
  .step__icon {
    width: 52px; height: 52px; background: linear-gradient(135deg, var(--accent), #7c3aed);
    color: #fff; border-radius: 14px; display: flex; align-items: center; justify-content: center;
    font-weight: 800; font-size: 1.2rem; margin-bottom: 1.2rem; box-shadow: 0 6px 16px var(--accent-glow);
  }
  .step-card h3 { font-size: 1.35rem; margin-bottom: 0.6rem; font-weight: 700; }
  .step-card p { color: var(--text-muted); font-size: 0.98rem; line-height: 1.5; }

  /* FAQ */
  .faq { padding: 5rem 0 7rem; }
  .faq__list { max-width: 720px; margin: 0 auto; }
  .faq__item { border-bottom: 1px solid var(--border); }
  .faq__toggle {
    width: 100%; text-align: left; padding: 1.3rem 0; font-size: 1.15rem; font-weight: 500;
    display: flex; justify-content: space-between; align-items: center; color: var(--text);
  }
  .faq__toggle::after { content: "+"; font-size: 1.6rem; font-weight: 300; transition: transform var(--transition); }
  .faq__toggle.active::after { transform: rotate(45deg); color: var(--accent); }
  .faq__content { max-height: 0; overflow: hidden; transition: max-height 0.4s cubic-bezier(0.4,0,0.2,1), padding 0.3s ease; }
  .faq__content p { padding-bottom: 1.4rem; color: var(--text-muted); line-height: 1.6; }

  /* Footer */
 /* Замени или добавь в конец @layer components */
.footer {
  position: relative;
  margin-top: 5rem;
  padding-top: 3.5rem;
  background: linear-gradient(180deg, transparent 0%, rgba(15, 23, 42, 0.5) 100%);
  border-top: 1px solid var(--border);
  overflow: hidden;
}

.footer__glow {
  position: absolute; top: -1px; left: 50%; transform: translateX(-50%);
  width: 65%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  filter: drop-shadow(0 0 10px var(--accent-glow));
  opacity: 0.8;
}

.footer__inner {
  display: grid; grid-template-columns: 1.1fr 2fr; gap: 3rem;
  padding-bottom: 2.5rem; border-bottom: 1px solid var(--border);
}

.footer__logo {
  font-size: 1.45rem; font-weight: 800; display: flex; align-items: center; gap: 0.5rem;
  margin-bottom: 0.9rem; transition: opacity var(--transition);
}
.footer__logo:hover { opacity: 0.85; }

.footer__tagline {
  color: var(--text-muted); font-size: 0.95rem; line-height: 1.5;
  max-width: 300px;
}

.footer__links {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem;
}

.footer__col h4 {
  font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.1em;
  color: #64748b; margin-bottom: 1rem; font-weight: 600;
}

.footer__col a {
  display: block; color: var(--text-muted); margin-bottom: 0.65rem;
  font-size: 0.95rem; transition: all var(--transition);
  position: relative; padding-left: 0;
}
.footer__col a::before {
  content: ""; position: absolute; left: 0; top: 50%; transform: translateY(-50%) scale(0);
  width: 4px; height: 4px; border-radius: 50%; background: var(--accent);
  transition: transform var(--transition);
}
.footer__col a:hover {
  color: var(--text); padding-left: 10px;
}
.footer__col a:hover::before { transform: translateY(-50%) scale(1); }

.footer__bottom {
  padding: 1.8rem 0 0; display: flex; justify-content: space-between;
  align-items: center; flex-wrap: wrap; gap: 1rem;
}

.footer__legal {
  font-size: 0.78rem; color: #475569; max-width: 650px; line-height: 1.5;
}

.footer__copy { font-size: 0.85rem; color: var(--text-muted); white-space: nowrap; }

@media (max-width: 900px) {
  .footer__inner { grid-template-columns: 1fr; text-align: center; gap: 2.5rem; }
  .footer__tagline { margin: 0 auto; }
  .footer__links { grid-template-columns: 1fr 1fr; gap: 1.2rem; }
  .footer__col a:hover { padding-left: 0; }
  .footer__col a::before { display: none; }
  .footer__bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .footer__links { grid-template-columns: 1fr; }
}

  /* Utilities */
  .reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s cubic-bezier(0.4,0,0.2,1), transform 0.7s cubic-bezier(0.4,0,0.2,1); }
  .reveal.visible { opacity: 1; transform: translateY(0); }

  @media (max-width: 768px) {
    .header__inner { flex-direction: column; gap: 0.8rem; }
    .nav { justify-content: center; }
    .hero { min-height: 75vh; }
    .steps__grid { grid-template-columns: 1fr; }
    .footer__inner { text-align: center; gap: 1.5rem; }
    .footer__col { margin: 0 auto; }
    .hero__deco { display: none; }
  }
}