:root{
    --bg: #08162b;
    --panel: rgba(255,255,255,0.04);
    --muted: #aeb6c6;
    --accent: #e51d23;
    --glass: rgba(255,255,255,0.04);
    --max-width: 1100px;
    --radius: 10px;
    --ff: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial;
    scroll-behavior: smooth;
  }
  
  *{box-sizing:border-box}
  html,body{height:100%}
  body{
    margin:0;
    font-family:var(--ff);
    background: linear-gradient(180deg,#071225 0%, var(--bg) 60%);
    color:var(--muted);
    -webkit-font-smoothing:antialiased;
    -moz-osx-font-smoothing:grayscale;
    line-height:1.5;
  }
  
  /* Container */
  .container{
    width:92%;
    max-width:var(--max-width);
    margin:0 auto;
  }
  
  /* Header */
  .site-header{
    position:fixed;
    top:0;
    left:0;
    right:0;
    background: rgba(7,18,37,0.7);
    backdrop-filter: blur(6px);
    border-bottom: 1px solid rgba(255,255,255,0.03);
    z-index:100;
  }
  
  .header-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding:14px 0;
  }
  
  /* Brand */
  .brand{
    color:#fff;
    font-weight:700;
    text-decoration:none;
    letter-spacing:0.3px;
    font-size:18px;
  }
  
  /* Nav */
  #site-nav ul{
    list-style:none;
    margin:0;
    padding:0;
    display:flex;
    gap:12px;
    align-items:center;
  }
  
  .nav-link{
    color:var(--muted);
    text-decoration:none;
    padding:8px 10px;
    border-radius:6px;
    font-weight:500;
    transition:all .18s ease;
    font-size:14px;
  }
  
  .nav-link:hover,
  .nav-link.active{
    color:#fff;
    background: rgba(255,255,255,0.04);
  }
  
  /* Hamburger */
  #nav-toggle{
    display:none;
    background:none;
    border:0;
    padding:8px;
    cursor:pointer;
  }
  .hamburger,
  .hamburger::before,
  .hamburger::after{
    display:block;
    width:24px;
    height:2px;
    background:var(--muted);
    border-radius:2px;
    position:relative;
  }
  .hamburger::before,
  .hamburger::after{
    content:'';
    position:absolute;
    left:0;
  }
  .hamburger::before{top:-7px}
  .hamburger::after{top:7px}
  
  /* Hero */
  .hero-section{
    padding-top:110px; /* header offset */
    padding-bottom:60px;
  }
  .hero-inner{
    display:flex;
    gap:30px;
    align-items:center;
    justify-content:space-between;
  }
  .hero-left{
    flex:1;
  }
  .eyebrow{
    color:var(--accent);
    font-weight:600;
    margin-bottom:8px;
    text-transform:uppercase;
    font-size:12px;
    letter-spacing:1px;
  }
  .hero-title{
    font-size:32px;
    margin:0 0 10px 0;
    color:#fff;
    line-height:1.05;
  }
  .typed-text{font-weight:700}
  .cursor{color:var(--accent); margin-left:6px}
  .hero-sub{
    color:var(--muted);
    max-width:680px;
    margin-bottom:18px;
    font-size:16px;
  }
  .hero-ctas{display:flex; gap:12px; margin-bottom:12px}
  .btn{
    display:inline-block;
    text-decoration:none;
    padding:10px 16px;
    border-radius:8px;
    font-weight:600;
    font-size:14px;
  }
  .btn.primary{
    background:var(--accent);
    color:#fff;
    box-shadow: 0 6px 24px rgba(229,29,35,0.12);
  }
  .btn.ghost{
    border:1px solid rgba(255,255,255,0.06);
    color:var(--muted);
    background:transparent;
  }
  .btn.small{padding:8px 10px; font-size:13px}
  .social-line a{color:var(--muted); margin-right:12px; text-decoration:none}
  
  /* hero-right */
  .hero-right{width:260px; display:flex; justify-content:flex-end}
  .profile-photo{
    width:220px;
    height:220px;
    object-fit:cover;
    border-radius:12px;
    border:1px solid rgba(255,255,255,0.06);
    box-shadow: 0 10px 30px rgba(2,6,23,0.6);
  }
  
  /* Sections */
  .section{padding:60px 0}
  .section-title{color:#fff; font-size:26px; margin-bottom:18px; border-bottom:2px solid rgba(229,29,35,0.7); padding-bottom:8px; display:inline-block}
  
  /* About layout */
  .about-grid{display:grid; grid-template-columns:1fr 360px; gap:20px}
  .card{background:var(--panel); padding:20px; border-radius:var(--radius); box-shadow: 0 6px 20px rgba(2,6,23,0.6)}
  .tech-grid{display:flex; flex-wrap:wrap; gap:8px}
  .tech{background:rgba(255,255,255,0.03); padding:8px 10px; border-radius:8px; font-size:13px; color:var(--muted)}
  
  /* Projects grid */
  .projects-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:18px;
    margin-top:18px;
  }
  .project-card{
    display:flex;
    flex-direction:column;
    background:linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
    border-radius:12px;
    overflow:hidden;
    transition:transform .2s ease, box-shadow .2s ease;
  }
  .project-card:hover{ transform:translateY(-6px); box-shadow: 0 18px 40px rgba(2,6,23,0.6);}
  .project-thumb{width:100%; height:150px; object-fit:cover; display:block}
  .project-body{padding:14px}
  .project-tags{font-size:13px; color:var(--muted); margin-top:8px; margin-bottom:12px}
  .project-links{display:flex; gap:8px}
  
  /* Timeline */
  .timeline{margin-top:18px; display:flex; flex-direction:column; gap:12px}
  .timeline-item{display:flex; gap:18px; align-items:flex-start}
  .timeline-date{min-width:130px; color:var(--muted); font-size:14px; font-weight:600}
  .timeline-content h4{margin:0 0 6px 0; color:#fff}
  .timeline-content p{margin:0; color:var(--muted)}
  
  /* Skills */
  .skills-grid{display:grid; grid-template-columns:repeat(2, 1fr); gap:14px; margin-top:12px}
  .skill{background:transparent}
  .skill-header{display:flex; justify-content:space-between; margin-bottom:8px; color:var(--muted)}
  .skill-bar{background: rgba(255,255,255,0.04); height:10px; border-radius:999px; overflow:hidden}
  .skill-fill{height:100%; background: linear-gradient(90deg,var(--accent), #ff6b6b); transition:width 1s ease}
  
  /* Contact grid */
  .contact-grid{display:grid; grid-template-columns:1fr 320px; gap:18px}
  .contact-card label{display:block; margin-top:12px; color:var(--muted); font-size:14px}
  .contact-card input, .contact-card textarea{
    margin-top:6px;
    width:100%;
    padding:10px;
    border-radius:8px;
    border:1px solid rgba(255,255,255,0.04);
    background:transparent;
    color:#fff;
    font-size:14px;
  }
  .form-actions{display:flex; gap:10px; margin-top:12px}
  .form-note{margin-top:10px; font-size:13px; color:var(--muted)}
  
  /* Footer */
  .site-footer{padding:20px 0; background: rgba(7,18,37,0.7); margin-top:30px}
  .footer-inner{display:flex; justify-content:space-between; align-items:center; gap:12px}
  .footer-inner a{color:var(--muted); text-decoration:none}
  
  /* Responsive */
  @media (max-width:980px){
    .projects-grid{grid-template-columns:repeat(2,1fr)}
    .about-grid{grid-template-columns:1fr}
    .hero-right{display:none}
    .contact-grid{grid-template-columns:1fr}
  }
  @media (max-width:640px){
    #nav-toggle{display:block}
    #site-nav{display:none}
    #site-nav.show{display:block; position:absolute; left:0; right:0; top:64px; background:rgba(7,18,37,0.95); padding:12px; border-bottom:1px solid rgba(255,255,255,0.04)}
    #site-nav ul{flex-direction:column; gap:6px}
    .projects-grid{grid-template-columns:1fr}
    .skills-grid{grid-template-columns:1fr}
    .hero-title{font-size:22px}
    .hero-sub{font-size:15px}
  }
  
  /* subtle entrance animations */
  .card, .project-card, .timeline-item, .skill, .contact-card, .contact-info { transform: translateY(6px); opacity:0; animation:fadeUp .6s ease forwards; }
  .card{animation-delay:.08s}
  .project-card{animation-delay:.12s}
  .timeline-item{animation-delay:.16s}
  .skill{animation-delay:.18s}
  .contact-card{animation-delay:.20s}
  .contact-info{animation-delay:.22s}
  
  @keyframes fadeUp{
    to { transform:none; opacity:1 }
  }
  
  /* small helpers */
  .text-center{text-align:center}
  a{color:inherit}