:root {
        --bg: #050816;
        --surface: #0f172d;
        --primary: #224eac;
        --secondary: #5d7dff;
        --text: #ffffff;
        --muted: #9aa4c7;
        --border: rgba(110, 140, 255, 0.18);
      }


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

      body {
        background: var(--bg);
        color: var(--text);
        overflow-x: hidden;
      }

      
      html {
        scroll-behavior: smooth; 
      }

      /* background effects */

      body::before {
        content: "";
        position: fixed;
        width: 700px;
        height: 700px;
        background: radial-gradient(circle, var(--primary), transparent 70%);
        top: -250px;
        left: -200px;
        opacity: 0.22;
        filter: blur(90px);
        z-index: -1;
      }

      body::after {
        content: "";
        position: fixed;
        width: 650px;
        height: 650px;
        background: radial-gradient(circle, #4f46e5, transparent 70%);
        bottom: -300px;
        right: -200px;
        opacity: 0.18;
        filter: blur(100px);
        z-index: -1;
      }

      .container {
        width: min(1120px, 90%);
        margin: auto;
      }

      /* navbar */

      header {
        position: sticky;
        top: 0;
        backdrop-filter: blur(18px);
        background: rgba(5, 8, 22, 0.72);
        border-bottom: 1px solid var(--border);
        z-index: 999;
      }

      
      nav{
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 22px 0;
      }



      .logo {
        font-size: 28px;
        font-weight: 800;
        letter-spacing: -1px;
      }

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

      nav ul {
        display: flex;
        gap: 32px;
        list-style: none;
      }

      nav a {
        color: white;
        text-decoration: none;
        font-weight: 600;
      }

      .cta-mini {
        padding: 12px 18px;
        background: linear-gradient(135deg, var(--primary), var(--secondary));
        border-radius: 14px;
      }

      /* hero */

      .hero {
        padding: 110px 0 80px;
      }

      .hero-grid {
        display: grid;
        grid-template-columns: 1.1fr 1fr;
        gap: 60px;
        align-items: center;
      }

      .badge {
        display: inline-block;
        padding: 10px 18px;
        border: 1px solid var(--border);
        border-radius: 999px;
        margin-bottom: 28px;
        color: #bfd0ff;
        background: rgba(37, 99, 255, 0.08);
      }

      .hero h1 {
        font-size: 72px;
        line-height: 1.02;
        letter-spacing: -3px;
        margin-bottom: 26px;
      }

      .gradient-text {
        background: linear-gradient(90deg, #7ca5ff, #ffffff);
        background-clip: text;
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
      }

      .hero p {
        font-size: 20px;
        color: var(--muted);
        max-width: 620px;
        margin-bottom: 34px;
      }

      .actions {
        display: flex;
        gap: 18px;
        flex-wrap: wrap;
      }

      .btn {
        padding: 16px 28px;
        border-radius: 16px;
        text-decoration: none;
        font-weight: 700;
      }

      .btn-primary {
        background: linear-gradient(135deg, var(--primary), var(--secondary));
        color: white;
        box-shadow: 0 0 40px rgba(37, 99, 255, 0.25);
      }

      .btn-secondary {
        border: 1px solid var(--border);
        color: white;
      }

      /* floating product mock */

      .mock {
        background: linear-gradient(
          180deg,
          rgba(18, 28, 62, 0.95),
          rgba(10, 17, 35, 0.96)
        );
        padding: 35px;
        border-radius: 30px;
        border: 1px solid var(--border);
        box-shadow:
          0 30px 90px rgba(0, 0, 0, 0.4),
          0 0 50px rgba(37, 99, 255, 0.08);
      }

      .code {
        font-family: monospace;
        color: #7ea4ff;
        margin-bottom: 14px;
      }

      .dashboard {
        margin-top: 30px;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 16px;
      }

      .metric {
        padding: 25px;
        background: rgba(255, 255, 255, 0.03);
        border-radius: 20px;
      }

      .metric h3 {
        font-size: 34px;
        margin-bottom: 8px;
      }

      /* sections */

      section {
        padding: 110px 0;
      }
      
      .title {
        text-align: center;
        font-size: 54px;
        letter-spacing: -2px;
        margin-bottom: 70px;
      }

      .cards {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 28px;
      }

      .card {
        padding: 35px;
        border-radius: 26px;
        background: linear-gradient(
          180deg,
          rgba(22, 33, 72, 0.8),
          rgba(13, 22, 46, 0.95)
        );
        border: 1px solid var(--border);
        transition: 0.3s;
      }

      .card:hover {
        transform: translateY(-6px);
      }

      .card h3 {
        margin-bottom: 18px;
        color: #8db0ff;
      }

      /* about split */

      .split {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 35px;
      }

      .panel {
        padding: 40px;
        border-radius: 28px;
        background: var(--surface);
        border: 1px solid var(--border);
      }

      /* contact */

      .contact-box {
        max-width: 760px;
        margin: auto;
        padding: 45px;
        border-radius: 30px;
        background: linear-gradient(
          180deg,
          rgba(18, 28, 62, 0.92),
          rgba(11, 17, 32, 0.96)
        );
        border: 1px solid var(--border);
      }

      input,
      textarea {
        width: 100%;
        margin-bottom: 16px;
        padding: 16px;
        border: none;
        background: #101a35;
        border-radius: 14px;
        color: white;
      }

      textarea {
        height: 160px;
        resize: none;
      }

      button {
        width: 100%;
        border: none;
        cursor: pointer;
      }

      /* footer */

      footer {
        padding: 35px;
        text-align: center;
        border-top: 1px solid var(--border);
        color: var(--muted);
      }

      /* responsive */

      @media (max-width: 900px) {
        .hero-grid,
        .split {
          grid-template-columns: 1fr;
        }

        .hero h1 {
          font-size: 52px;
        }

        nav ul {
          display: none;
        }
      }