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

html {
  scroll-behavior: smooth;
}

body {
  font-family: Arial, Helvetica, sans-serif;
  background: #07110d;
  color: #f3fff8;
  line-height: 1.6;
}

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

.container {
  width: min(1100px, 90%);
  margin: auto;
}

header {
  border-bottom: 1px solid #1c3d2f;
  background: #07110d;
}

nav {
  min-height: 72px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  color: #72ff9c;
  font-size: 1.3rem;
  font-weight: 800;
}

.button {
  display: inline-block;
  padding: 14px 22px;
  border-radius: 8px;
  background: #72ff9c;
  color: #06100b;
  font-weight: 700;
}

footer {
  border-top: 1px solid #183525;
  padding: 28px 0;
  text-align: center;
  color: #82998b;
}

@media (max-width: 800px) {
  nav {
    gap: 20px;
  }
}
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: Arial, Helvetica, sans-serif;
      background: #07110d;
      color: #f3fff8;
      line-height: 1.6;
    }

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

    .container {
      width: min(1100px, 90%);
      margin: auto;
    }

    header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(7, 17, 13, 0.95);
      border-bottom: 1px solid #1c3d2f;
      backdrop-filter: blur(10px);
    }

    nav {
      min-height: 72px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .logo {
      font-size: 1.35rem;
      font-weight: 800;
      color: #72ff9c;
    }

    .nav-links {
      display: flex;
      gap: 24px;
      list-style: none;
    }

    .nav-links a:hover {
      color: #72ff9c;
    }

    .hero {
      min-height: 88vh;
      display: grid;
      place-items: center;
      text-align: center;
      background:
        radial-gradient(circle at top, rgba(38, 190, 101, 0.18), transparent 45%),
        linear-gradient(180deg, #07110d, #091912);
      padding: 80px 0;
    }

    .hero-badge {
      display: inline-block;
      padding: 8px 16px;
      border: 1px solid #2d7450;
      border-radius: 999px;
      color: #8bffac;
      margin-bottom: 24px;
      font-size: 0.9rem;
    }

    h1 {
      font-size: clamp(2.8rem, 7vw, 5.8rem);
      line-height: 1.05;
      max-width: 900px;
      margin: 0 auto 24px;
    }

    h1 span {
      color: #72ff9c;
    }

    .hero p {
      max-width: 720px;
      margin: 0 auto 34px;
      color: #bad1c4;
      font-size: 1.15rem;
    }

    .buttons {
      display: flex;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
    }

    .button {
      display: inline-block;
      padding: 14px 24px;
      border-radius: 8px;
      font-weight: 700;
      transition: 0.2s ease;
    }

    .button-primary {
      background: #72ff9c;
      color: #06100b;
    }

    .button-primary:hover {
      background: #9bffb8;
      transform: translateY(-2px);
    }

    .button-secondary {
      border: 1px solid #347554;
      color: #d9ffe5;
    }

    .button-secondary:hover {
      border-color: #72ff9c;
      color: #72ff9c;
    }

    section {
      padding: 90px 0;
    }

    .section-title {
      text-align: center;
      margin-bottom: 45px;
    }

    .section-title h2 {
      font-size: 2.3rem;
      margin-bottom: 12px;
    }

    .section-title p {
      color: #9fbaaa;
      max-width: 650px;
      margin: auto;
    }

    .cards {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }

    .card {
      background: #0d1e16;
      border: 1px solid #1b3c2b;
      border-radius: 14px;
      padding: 28px;
      transition: 0.2s ease;
    }

    .card:hover {
      transform: translateY(-5px);
      border-color: #55c97d;
    }

    .card h3 {
      color: #72ff9c;
      margin-bottom: 12px;
    }

    .card p {
      color: #abc0b3;
    }

    .about {
      background: #0a1711;
    }

    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
      align-items: center;
    }

    .about h2 {
      font-size: 2.4rem;
      margin-bottom: 20px;
    }

    .about p {
      color: #b1c8ba;
      margin-bottom: 18px;
    }

    .terminal {
      background: #030806;
      border: 1px solid #234c37;
      border-radius: 12px;
      padding: 26px;
      font-family: monospace;
      color: #72ff9c;
      min-height: 260px;
      box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
    }

    .terminal p {
      color: #72ff9c;
      margin-bottom: 12px;
    }

    .contact {
      text-align: center;
    }

    footer {
      border-top: 1px solid #183525;
      padding: 28px 0;
      text-align: center;
      color: #82998b;
    }

    @media (max-width: 800px) {
      .cards,
      .about-grid {
        grid-template-columns: 1fr;
      }

      .nav-links {
        display: none;
      }

      .hero {
        min-height: 80vh;
      }
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    body {
      font-family: Arial, Helvetica, sans-serif;
      background: #07110d;
      color: #f3fff8;
      line-height: 1.6;
    }

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

    .container {
      width: min(1100px, 90%);
      margin: auto;
    }

    header {
      border-bottom: 1px solid #1c3d2f;
      background: #07110d;
    }

    nav {
      min-height: 72px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .logo {
      color: #72ff9c;
      font-size: 1.3rem;
      font-weight: 800;
    }

    .back-link {
      color: #bad1c4;
    }

    .back-link:hover {
      color: #72ff9c;
    }

    .hero {
      padding: 90px 0 60px;
      text-align: center;
    }

    .hero h1 {
      font-size: clamp(2.6rem, 6vw, 4.8rem);
      margin-bottom: 18px;
    }

    .hero p {
      max-width: 700px;
      margin: auto;
      color: #abc0b3;
      font-size: 1.1rem;
    }

    .courses {
      padding: 30px 0 90px;
    }

    .grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    .card {
      background: #0d1e16;
      border: 1px solid #1b3c2b;
      border-radius: 14px;
      padding: 30px;
    }

    .card h2 {
      color: #72ff9c;
      margin-bottom: 12px;
    }

    .card p {
      color: #abc0b3;
      margin-bottom: 18px;
    }

    .card ul {
      padding-left: 20px;
      color: #d7e9dd;
    }

    .card li {
      margin-bottom: 8px;
    }

    .status {
      display: inline-block;
      margin-top: 20px;
      padding: 7px 12px;
      border: 1px solid #347554;
      border-radius: 999px;
      color: #8bffac;
      font-size: 0.9rem;
    }

    footer {
      border-top: 1px solid #183525;
      padding: 28px 0;
      text-align: center;
      color: #82998b;
    }

    @media (max-width: 800px) {
      .grid {
        grid-template-columns: 1fr;
      }
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    body {
      font-family: Arial, Helvetica, sans-serif;
      background: #07110d;
      color: #f3fff8;
      line-height: 1.6;
    }

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

    .container {
      width: min(760px, 90%);
      margin: auto;
    }

    header {
      border-bottom: 1px solid #1c3d2f;
    }

    nav {
      min-height: 72px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .logo {
      color: #72ff9c;
      font-weight: 800;
      font-size: 1.3rem;
    }

    main {
      padding: 90px 0;
    }

    h1 {
      font-size: clamp(2.5rem, 6vw, 4.5rem);
      margin-bottom: 18px;
    }

    .intro {
      color: #abc0b3;
      margin-bottom: 34px;
    }

    .contact-card {
      background: #0d1e16;
      border: 1px solid #1b3c2b;
      border-radius: 14px;
      padding: 30px;
    }

    .contact-card h2 {
      color: #72ff9c;
      margin-bottom: 12px;
    }

    .contact-card p {
      color: #bad1c4;
      margin-bottom: 24px;
    }

    .button {
      display: inline-block;
      padding: 14px 22px;
      border-radius: 8px;
      background: #72ff9c;
      color: #06100b;
      font-weight: 700;
    }

    footer {
      border-top: 1px solid #183525;
      padding: 28px 0;
      text-align: center;
      color: #82998b;
    }
    body {
      margin: 0;
      font-family: Arial, Helvetica, sans-serif;
      background: #07110d;
      color: #f3fff8;
      display: grid;
      place-items: center;
      min-height: 100vh;
      text-align: center;
    }

    .box {
      width: min(600px, 90%);
    }

    h1 {
      font-size: 5rem;
      color: #72ff9c;
      margin-bottom: 10px;
    }

    p {
      color: #abc0b3;
      margin-bottom: 28px;
    }

    a {
      display: inline-block;
      background: #72ff9c;
      color: #06100b;
      padding: 14px 22px;
      border-radius: 8px;
      text-decoration: none;
      font-weight: 700;
    }