<>
    :root{
      --bg:#0c0f14;        /* Deep charcoal */
      --card:#121722;      /* Card dark */
      --muted:#a8b2c1;     /* Muted text */
      --brand:#07c0a2;     /* Teal brand */
      --brand-2:#38bdf8;   /* Accent (sky) */
      --ring: rgba(7,192,162,.35);
      --success:#16a34a;
      --danger:#ef4444;
      --warning:#f59e0b;
      --shadow: 0 10px 30px rgba(0,0,0,.35);
      --radius: 20px;
    }
    *{box-sizing:border-box}
    html,body{margin:0;padding:0;background:linear-gradient(180deg,#0b0e13 0%, #0e1420 100%);color:#e9eef6;font-family:Poppins,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;}
    a{color:var(--brand)}
    img{max-width:100%;display:block}
    .container{max-width:1200px;margin:0 auto;padding:0 20px}

    /* Header / Nav */
    header{position:sticky;top:0;z-index:50;backdrop-filter:saturate(140%) blur(8px);background:rgba(10,13,19,.7);border-bottom:1px solid rgba(255,255,255,.06)}
    .nav{display:flex;align-items:center;justify-content:space-between;padding:16px 0}
    .brand{display:flex;gap:12px;align-items:center}
    .logo{width:44px;height:44px;border-radius:12px;background:radial-gradient(120% 120% at 10% 10%, var(--brand) 0%, var(--brand-2) 45%, #103 100%);box-shadow:0 8px 30px rgba(7,192,162,.35)}
    .brand h1{font-size:18px;margin:0;font-weight:700;letter-spacing:.5px}
    nav ul{display:flex;gap:18px;list-style:none;margin:0;padding:0}
    nav a{display:inline-block;padding:10px 12px;border-radius:12px;color:#e9eef6;text-decoration:none;opacity:.9}
    nav a:hover{background:rgba(255,255,255,.06);opacity:1}

    /* Hero */
    .hero{position:relative;padding:80px 0;overflow:hidden}
    .hero .grid{display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:center}
    .badge{display:inline-flex;gap:8px;align-items:center;padding:8px 12px;border-radius:999px;background:rgba(7,192,162,.12);color:#b8fff2;border:1px solid var(--ring);font-size:12px}
    .title{font-size:48px;line-height:1.1;margin:18px 0 12px}
    .title .accent{background:linear-gradient(90deg,var(--brand) 0%, var(--brand-2) 60%, #87f 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
    .sub{color:var(--muted);max-width:640px}
    .cta{display:flex;gap:12px;margin-top:22px}
    .btn{appearance:none;border:0;background:var(--brand);color:#1b0303;padding:14px 18px;border-radius:14px;font-weight:700;cursor:pointer;box-shadow:0 10px 24px rgba(7,192,162,.35);transition:transform .2s ease, box-shadow .2s ease}
    .btn:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(7,192,162,.45)}
    .btn.alt{background:transparent;color:#031b10;border:1px solid rgba(255,255,200,.15)}
    .btn.alt:hover{border-color:rgba(255,255,255,.35)}
    .hero-art{position:relative;border-radius:var(--radius);overflow:hidden;background:radial-gradient(100% 100% at 50% 0%, rgba(56,189,248,.25), rgba(7,192,162,.05));box-shadow:var(--shadow)}
    .hero-art img{aspect-ratio:16/10;object-fit:cover;filter:brightness(.9)}
    .hero-art .stamp{position:absolute;inset:auto 16px 16px auto;background:rgba(0,0,0,.5);backdrop-filter:blur(8px);padding:10px 12px;border-radius:12px;font-size:12px;border:1px solid rgba(255,255,255,.12)}

    /* Highlights strip */
    .highlights{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:26px 0 0}
    .chip{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);padding:12px;border-radius:12px;text-align:center;color:#cfe6ff}

    /* Projects */
    section{padding:70px 0}
    .section-title{font-size:28px;margin:0 0 8px}
    .section-sub{color:var(--muted);margin:0 0 24px}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
    .card{background:linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02));border:1px solid rgba(255,255,255,.08);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .35s ease, box-shadow .35s ease, filter .35s ease}
    .card:hover{transform:translateY(-6px) scale(1.02);box-shadow:0 30px 60px rgba(0,0,0,.45);filter:brightness(1.06)}
    .card img{aspect-ratio:16/10;object-fit:cover;transition:transform .5s ease}
    .card:hover img{transform:scale(1.06)}
    .card .content{padding:16px}
    .pill{display:inline-flex;gap:8px;align-items:center;padding:6px 10px;border-radius:999px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.08);font-size:12px;color:#c9e6ff;margin-bottom:8px}

    /* Calculator */
    .calc{display:grid;grid-template-columns:1.1fr .9fr;gap:24px}
    .panel{background:linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02));border:1px solid rgba(255,255,255,.08);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)}
    label{display:block;font-size:13px;color:#cfe6ff;margin:10px 0 6px}
    input,select,textarea{width:100%;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.12);color:#e9eef6;padding:12px;border-radius:12px;outline:none}
    input:focus,select:focus,textarea:focus{border-color:var(--brand);box-shadow:0 0 0 6px var(--ring)}
    .row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    table{width:100%;border-collapse:collapse}
    th,td{border-bottom:1px dashed rgba(255,255,255,.08);padding:10px 8px;text-align:left;font-size:14px}
    th{color:#cfe6ff;font-weight:600}

    /* Timeline */
    .timeline{margin-top:18px}
    .timeline-bar{position:relative;height:10px;background:rgba(255,255,255,.06);border-radius:999px;overflow:hidden}
    .timeline-fill{position:absolute;inset:0 0 0 0;width:0;background:linear-gradient(90deg,var(--brand),var(--brand-2));border-radius:999px;transition:width 1.2s ease}
    .milestones{position:relative;height:28px;margin-top:10px}
    .milestones .dot{position:absolute;top:0;transform:translate(-50%, -50%);width:16px;height:16px;border-radius:50%;background:#1f2a37;border:2px solid rgba(255,255,255,.3);box-shadow:0 6px 14px rgba(0,0,0,.35);transition:transform .25s ease, border-color .25s ease, background .25s ease}
    .milestones .dot.active{background:var(--brand);border-color:#fff}
    .milestones .dot:hover{transform:translate(-50%, -50%) scale(1.15)}
    .tooltip{position:absolute;top:-44px;left:50%;transform:translateX(-50%);background:#0b1220;border:1px solid rgba(255,255,255,.12);padding:8px 10px;border-radius:10px;font-size:12px;white-space:nowrap;opacity:0;pointer-events:none;transition:opacity .2s ease, transform .2s ease}
    .dot:hover .tooltip{opacity:1;transform:translateX(-50%) translateY(-4px)}

    /* Video */
    .video-wrap{border-radius:var(--radius);overflow:hidden;border:1px solid rgba(255,255,255,.08);box-shadow:var(--shadow)}
    video{width:100%;display:block}

    /* Branches */
    .branches{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .branch{padding:14px;border-radius:16px;background:linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02));border:1px solid rgba(255,255,255,.08)}

    /* Footer */
    footer{padding:30px 0;border-top:1px solid rgba(255,255,255,.06);color:var(--muted)}

    /* Responsive */
    @media (max-width: 980px){
      .hero .grid, .calc{grid-template-columns:1fr}
      .grid-3{grid-template-columns:1fr 1fr}
      .branches{grid-template-columns:1fr 1fr}
    }
    @media (max-width: 640px){
      .title{font-size:34px}
      .grid-3{grid-template-columns:1fr}
      .highlights{grid-template-columns:1fr 1fr}
    }