:root {
      --bg: #07111f;
      --bg-2: #0d1a2d;
      --card: rgba(255,255,255,0.08);
      --card-strong: rgba(255,255,255,0.12);
      --line: rgba(255,255,255,0.1);
      --text: #eef4ff;
      --muted: #b8c6e4;
      --accent: #47a2ff;
      --accent-2: #7a5cff;
      --accent-3: #20d3ff;
      --shadow: 0 24px 60px rgba(0,0,0,0.35);
      --radius: 24px;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      font-family: Arial, Helvetica, sans-serif;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      color: var(--text);
      line-height: 1.6;
      background:
        radial-gradient(circle at 10% 10%, rgba(71,162,255,0.16), transparent 28%),
        radial-gradient(circle at 90% 10%, rgba(122,92,255,0.18), transparent 24%),
        radial-gradient(circle at 50% 100%, rgba(32,211,255,0.10), transparent 30%),
        linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
    }

    img {
      max-width: 100%;
      display: block;
    }

    a {
      text-decoration: none;
    }

    .container {
      width: min(1150px, 92%);
      margin: auto;
    }

    header {
      position: sticky;
      top: 0;
      z-index: 1000;
      backdrop-filter: blur(12px);
      background: rgba(7,17,31,0.78);
      border-bottom: 1px solid rgba(255,255,255,0.08);
    }

    nav {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 16px 0;
      gap: 20px;
    }

    .logo {
      font-size: 1.4rem;
      font-weight: 800;
      letter-spacing: 0.4px;
    }

    .logo span {
      color: var(--accent);
    }

    .nav-links {
      display: flex;
      list-style: none;
      gap: 22px;
      flex-wrap: wrap;
      align-items: center;
    }

    .nav-links a {
      color: var(--muted);
      font-size: 0.96rem;
      transition: 0.25s;
    }

    .nav-links a:hover {
      color: white;
    }

    .nav-btn {
      padding: 10px 16px;
      border-radius: 14px;
      background: linear-gradient(135deg, var(--accent), var(--accent-2));
      color: white !important;
      font-weight: 700;
    }

    section {
      padding: 90px 0;
    }

    .hero {
      min-height: 90vh;
      display: flex;
      align-items: center;
      overflow: hidden;
      padding: 70px 0 90px;
    }

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

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      padding: 8px 14px;
      border-radius: 999px;
      background: rgba(255,255,255,0.08);
      border: 1px solid rgba(255,255,255,0.08);
      color: var(--muted);
      font-size: 0.9rem;
      margin-bottom: 18px;
    }

    .dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: var(--accent-3);
      box-shadow: 0 0 16px rgba(32,211,255,0.9);
    }

    .hero h1 {
      font-size: clamp(2.5rem, 5vw, 4.4rem);
      line-height: 1.05;
      margin-bottom: 18px;
      letter-spacing: -1px;
    }

    .hero-highlight {
      background: linear-gradient(135deg, #ffffff, #8dc7ff, #8ab0ff);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .hero p {
      color: var(--muted);
      max-width: 620px;
      font-size: 1.08rem;
      margin-bottom: 22px;
    }

    .buttons {
      display: flex;
      gap: 14px;
      flex-wrap: wrap;
      margin-bottom: 26px;
    }

    .btn {
      padding: 14px 20px;
      border-radius: 16px;
      font-weight: 700;
      transition: 0.25s ease;
      display: inline-block;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--accent), var(--accent-2));
      color: white;
      box-shadow: var(--shadow);
    }

    .btn-secondary {
      border: 1px solid rgba(255,255,255,0.14);
      color: white;
      background: rgba(255,255,255,0.04);
    }

    .btn:hover {
      transform: translateY(-2px);
    }

    .hero-mini-stats {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .mini-stat {
      padding: 10px 14px;
      border-radius: 14px;
      background: rgba(255,255,255,0.06);
      border: 1px solid rgba(255,255,255,0.08);
      color: var(--text);
      font-size: 0.92rem;
    }

    .hero-photo-wrap {
      position: relative;
      display: flex;
      justify-content: center;
      align-items: center;
      min-height: 520px;
    }

    .hero-photo-wrap::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        radial-gradient(circle at 70% 40%, rgba(71,162,255,0.28), transparent 30%),
        radial-gradient(circle at 40% 60%, rgba(122,92,255,0.22), transparent 28%);
      filter: blur(10px);
    }

    .hero-photo {
      position: relative;
      width: 100%;
      max-width: 420px;
      border-radius: 30px;
      box-shadow: 0 28px 60px rgba(0,0,0,0.45);
      z-index: 2;
    }

    .hero-fade {
      position: absolute;
      left: -30px;
      top: 0;
      width: 170px;
      height: 100%;
      background: linear-gradient(to right, rgba(13,26,45,1), rgba(13,26,45,0));
      z-index: 3;
      pointer-events: none;
    }

    .teacher-floating-card {
      position: absolute;
      bottom: 30px;
      left: 20px;
      z-index: 5;
      background: rgba(10,20,40,0.45);
      backdrop-filter: blur(16px);
      border: 1px solid rgba(255,255,255,0.15);
      
      border-radius: 16px;
      padding: 8px 18px;
      
      box-shadow: 0 10px 30px rgba(0,0,0,0.35);
    }

    .teacher-floating-card h3 {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 3px;
    }

    .teacher-floating-card p {
      font-size: 0.9rem;
      color: var(--muted);
      margin: 0;
    }

    .section-head {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 46px;
    }

    .section-head h2 {
      font-size: 2.2rem;
      margin-bottom: 10px;
    }

    .section-head p {
      color: var(--muted);
      font-size: 1rem;
    }

    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .card {
      background: var(--card);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      padding: 26px;
      box-shadow: var(--shadow);
      transition: 0.25s ease;
    }

    .card:hover {
      transform: translateY(-4px);
      background: var(--card-strong);
    }

    .icon {
      width: 52px;
      height: 52px;
      border-radius: 16px;
      display: grid;
      place-items: center;
      font-size: 1.4rem;
      margin-bottom: 18px;
      background: linear-gradient(135deg, rgba(71,162,255,0.2), rgba(122,92,255,0.2));
      border: 1px solid rgba(255,255,255,0.1);
    }

    .card h3 {
      margin-bottom: 10px;
      font-size: 1.15rem;
    }

    .card p {
      color: var(--muted);
      font-size: 0.97rem;
    }

    .contact-box {
      background: linear-gradient(135deg, rgba(71,162,255,0.12), rgba(122,92,255,0.12));
      border: 1px solid rgba(255,255,255,0.1);
      border-radius: 28px;
      padding: 40px;
      text-align: center;
      box-shadow: var(--shadow);
    }

    .contact-box h2 {
      font-size: 2rem;
      margin-bottom: 12px;
    }

    .contact-box p {
      color: var(--muted);
      margin-bottom: 22px;
    }

    footer {
      padding: 26px 0 40px;
      border-top: 1px solid rgba(255,255,255,0.08);
      color: var(--muted);
      text-align: center;
    }

    @media (max-width: 980px) {
      .hero-grid,
      .grid-3 {
        grid-template-columns: 1fr;
      }

      nav {
        flex-direction: column;
      }

      .hero {
        min-height: auto;
        padding-top: 50px;
      }

      .hero-photo-wrap {
        min-height: auto;
      }

      .hero-fade {
        display: none;
      }

      .teacher-floating-card {
        position: absolute;
        bottom: 15px;
        left: 50%;
        transform:translateX(-50%);
        margin-top: 15px;
        text-align:center;
        max-width:90%;
      }
    }

    @media (max-width: 640px) {
      .hero h1 {
        font-size: 2.2rem;
      }

      .section-head h2 {
        font-size: 1.7rem;
      }

      .contact-box {
        padding: 26px 20px;
      }

      .nav-links {
        justify-content: center;
      }
    }