:root {
      --black: #09090b;
      --dark: #18181b;
      --muted: #71717a;
      --light: #f4f4f5;
      --white: #ffffff;
      --red: #dc2626;
      --red-dark: #7f1d1d;
      --border: rgba(255,255,255,0.12);
      --shadow: 0 24px 70px rgba(0,0,0,0.35);
    }

    * { box-sizing: border-box; }

    body {
      margin: 0;
      font-family: Arial, Helvetica, sans-serif;
      background: var(--black);
      color: var(--white);
      line-height: 1.6;
    }

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

    .container {
      width: min(1180px, calc(100% - 40px));
      margin: 0 auto;
    }

    .hero {
      position: relative;
      overflow: hidden;
      background:
        radial-gradient(circle at top left, rgba(220,38,38,0.35), transparent 34%),
        radial-gradient(circle at bottom right, rgba(255,255,255,0.1), transparent 28%),
        #09090b;
      padding: 28px 0 90px;
    }

    .nav {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 20px;
      margin-bottom: 70px;
    }

    .brand {
      font-size: 22px;
      font-weight: 900;
      letter-spacing: -0.03em;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 22px;
      font-size: 14px;
      font-weight: 700;
    }

    .nav-links a:not(.button) { color: #d4d4d8; }
    .nav-links a:not(.button):hover { color: var(--white); }

    .button {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 16px;
      padding: 14px 22px;
      font-weight: 900;
      transition: 0.2s ease;
      border: 1px solid transparent;
    }

    .button.primary {
      background: var(--red);
      color: var(--white);
      box-shadow: 0 18px 40px rgba(127,29,29,0.35);
    }

    .button.primary:hover { background: #ef4444; transform: translateY(-1px); }

    .button.secondary {
      border-color: rgba(255,255,255,0.22);
      color: var(--white);
    }

    .button.secondary:hover { background: rgba(255,255,255,0.08); }

    .button.light {
      background: var(--white);
      color: var(--black);
    }

    .button.light:hover { background: #e4e4e7; }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.05fr 0.95fr;
      align-items: center;
      gap: 60px;
    }

    .eyebrow {
      display: inline-flex;
      border: 1px solid rgba(248,113,113,0.45);
      background: rgba(220,38,38,0.12);
      color: #fecaca;
      padding: 8px 14px;
      border-radius: 999px;
      font-size: 14px;
      font-weight: 800;
      margin-bottom: 20px;
    }

    h1, h2, h3, p { margin-top: 0; }

    h1 {
      font-size: clamp(44px, 7vw, 76px);
      line-height: 0.98;
      letter-spacing: -0.06em;
      margin-bottom: 24px;
      font-weight: 1000;
    }

    .hero p {
      max-width: 620px;
      font-size: 19px;
      color: #d4d4d8;
      margin-bottom: 32px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
    }

    .feature-card {
      border: 1px solid var(--border);
      background: rgba(255,255,255,0.05);
      border-radius: 34px;
      padding: 20px;
      box-shadow: var(--shadow);
    }

    .feature-inner {
      min-height: 390px;
      border-radius: 26px;
      background: linear-gradient(135deg, #3f3f46, #18181b 45%, #450a0a);
      padding: 34px;
      display: flex;
      flex-direction: column;
      justify-content: flex-end;
    }

    .feature-inner .icon {
      font-size: 46px;
      margin-bottom: 18px;
    }

    .feature-inner h2 {
      font-size: 34px;
      line-height: 1.1;
      letter-spacing: -0.04em;
      margin-bottom: 12px;
    }

    .feature-inner p {
      color: #d4d4d8;
      font-size: 16px;
      margin-bottom: 0;
    }

    section { padding: 90px 0; }

    .section-label {
      color: #f87171;
      font-size: 13px;
      font-weight: 900;
      text-transform: uppercase;
      letter-spacing: 0.18em;
      margin-bottom: 10px;
    }

    .section-title {
      font-size: clamp(34px, 4vw, 48px);
      line-height: 1.05;
      letter-spacing: -0.05em;
      font-weight: 1000;
      margin-bottom: 16px;
    }

    .section-intro {
      max-width: 720px;
      color: #d4d4d8;
      font-size: 18px;
    }

    .program-grid {
      margin-top: 42px;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
    }

    .card {
      border: 1px solid var(--border);
      background: rgba(255,255,255,0.045);
      border-radius: 28px;
      padding: 28px;
      min-height: 260px;
    }

    .card-icon {
      font-size: 34px;
      margin-bottom: 28px;
    }

    .card h3 {
      font-size: 23px;
      line-height: 1.15;
      letter-spacing: -0.03em;
      margin-bottom: 12px;
    }

    .card p { color: #d4d4d8; margin-bottom: 0; }

    .light-section {
      background: var(--white);
      color: var(--black);
    }

    .light-section .section-label { color: var(--red); }
    .light-section .section-intro { color: #3f3f46; }

    .why-grid {
      display: grid;
      grid-template-columns: 0.9fr 1.1fr;
      gap: 50px;
      align-items: start;
    }

    .reason-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 14px;
    }

    .reason {
      background: #f4f4f5;
      border: 1px solid #e4e4e7;
      border-radius: 20px;
      padding: 20px;
      font-weight: 900;
    }

    .instructor-grid {
      margin-top: 42px;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
    }

    .avatar {
      width: 78px;
      height: 78px;
      border-radius: 50%;
      background: linear-gradient(135deg, #52525b, #450a0a);
      margin-bottom: 22px;
    }

    .info-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 18px;
    }

    .info-card {
      border: 1px solid var(--border);
      background: rgba(255,255,255,0.045);
      border-radius: 28px;
      padding: 28px;
    }

    .info-card h3 {
      margin-bottom: 10px;
      font-size: 22px;
    }

    .info-card p {
      color: #d4d4d8;
      margin-bottom: 0;
    }

    .cta {
      padding-top: 20px;
    }

    .cta-box {
      text-align: center;
      background: var(--red);
      border-radius: 34px;
      padding: 56px 30px;
      box-shadow: 0 28px 80px rgba(127,29,29,0.35);
    }

    .cta-box h2 {
      font-size: clamp(34px, 4vw, 50px);
      line-height: 1.05;
      letter-spacing: -0.05em;
      margin-bottom: 14px;
    }

    .cta-box p {
      max-width: 720px;
      margin: 0 auto 30px;
      color: #fee2e2;
      font-size: 18px;
    }

    .cta-actions {
      display: flex;
      justify-content: center;
      flex-wrap: wrap;
      gap: 14px;
    }

    footer {
      padding: 34px 0;
      color: #a1a1aa;
      font-size: 14px;
      border-top: 1px solid rgba(255,255,255,0.08);
    }

    @media (max-width: 980px) {
      .hero-grid,
      .why-grid,
      .program-grid,
      .instructor-grid,
      .info-grid {
        grid-template-columns: 1fr 1fr;
      }

      .hero-grid,
      .why-grid { gap: 34px; }
    }

    @media (max-width: 680px) {
      .nav { align-items: flex-start; flex-direction: column; margin-bottom: 48px; }
      .nav-links { flex-wrap: wrap; gap: 12px; }
      .hero-grid,
      .why-grid,
      .program-grid,
      .instructor-grid,
      .info-grid,
      .reason-grid {
        grid-template-columns: 1fr;
      }
      section { padding: 64px 0; }
      .feature-inner { min-height: 300px; }
    }