:root{
  --bg1:#071426;
  --bg2:#03101a;
  --accent:#00f5ff;
  --accent-2:#7c3aed;
  --glass: rgba(255,255,255,0.03);
  --glass-2: rgba(255,255,255,0.02);
  --card-radius:14px;
  --glass-border: rgba(255,255,255,0.06);
  --muted: #8b9bb0;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  background: linear-gradient(180deg, var(--bg1), var(--bg2));
  color:#cbd5e1;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
  min-height:100vh;
}

/* particles canvas */
#particles{position:fixed;inset:0;z-index:0;display:block}

/* topbar */
.topbar{
  position:relative;z-index:20;
  display:flex;justify-content:space-between;align-items:center;
  padding:18px 28px;
  backdrop-filter: blur(6px);
}
.brand{display:flex;gap:12px;align-items:center}
.logo{
  width:56px;height:56px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#071926,#062b3a);
  font-weight:800;font-size:20px;color:var(--accent);
  box-shadow: 0 6px 24px rgba(2,6,23,0.6);
}
.name{font-weight:700;font-size:16px;color:#e6eef8}
.subtitle{font-size:12px;color:var(--muted)}

.actions{display:flex;gap:12px;align-items:center}
.lang-switch{display:flex;border-radius:10px;overflow:hidden;background:var(--glass-2);padding:4px}
.lang-btn{background:transparent;border:0;padding:8px 10px;color:inherit;cursor:pointer;font-weight:700}
.lang-btn:hover{background:linear-gradient(90deg, rgba(255,255,255,0.02), transparent)}

.btn{padding:10px 14px;border-radius:10px;text-decoration:none;border:1px solid transparent;cursor:pointer;font-weight:700}
.btn.primary{background:linear-gradient(90deg,var(--accent),#6ee7b7);color:#022;box-shadow:0 10px 40px rgba(0,245,255,0.06)}
.btn.outline, .btn.ghost{background:transparent;border:1px solid rgba(255,255,255,0.06);color: grey;}

.container{position:relative;z-index:10;max-width:1100px;margin:40px auto;padding:12px}

/* cards */
.card{background:linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));border-radius:var(--card-radius);padding:20px;margin-bottom:18px;border:1px solid var(--glass-border);box-shadow: 0 12px 40px rgba(2,6,23,0.6);}

.hero{display:flex;gap:18px;align-items:stretch}
.hero-left{flex:1;padding-right:6px}
.hero-right{width:360px;display:flex;flex-direction:column;gap:12px}

.big{font-size:36px;margin:0 0 8px 0;letter-spacing:-0.5px}
.lead{color:var(--muted);line-height:1.6}
.skills-chips{margin-top:12px;display:flex;flex-wrap:wrap;gap:8px}
.skills-chips span{background:rgba(255,255,255,0.03);padding:8px 10px;border-radius:999px;font-weight:600;font-size:13px}

.profile-card{display:flex;gap:12px;align-items:center;padding:16px}
.avatar{width:72px;height:72px;border-radius:14px;background:linear-gradient(135deg,#061622,#0a2b3a);display:flex;align-items:center;justify-content:center;font-weight:800;color:var(--accent);font-size:20px}
.meta-row{color:#cbd5e1}
.small{font-size:12px;color:var(--muted)}

.experience{padding:12px}
.quick-stats{display:flex;gap:12px;margin-top:12px}
.quick-stats div{flex:1;background:rgba(255,255,255,0.02);padding:8px;border-radius:10px;text-align:center}
.quick-stats div strong{display:block;font-size:18px;color:var(--accent)}

/* skill bars */
.skill-bars{margin-top:18px;display:grid;grid-template-columns:1fr;gap:10px}
.skill-bar{background:rgba(255,255,255,0.02);padding:10px;border-radius:8px;overflow:hidden}
.skill-bar .label{display:flex;justify-content:space-between;font-weight:700;font-size:13px;color:#e6eef8;margin-bottom:6px}
.skill-bar .track{height:10px;background:rgba(255,255,255,0.03);border-radius:999px;overflow:hidden}
.skill-bar .fill{height:100%;width:0%;background:linear-gradient(90deg,var(--accent),var(--accent-2));border-radius:999px;transition:width 1.2s cubic-bezier(.2,.9,.3,1)}

/* projects */
.projects .project-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px;margin-top:14px}
.project{background:linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));padding:12px;border-radius:10px;border:1px solid rgba(255,255,255,0.03);cursor:pointer;transition:transform .28s ease,box-shadow .28s ease}
.project:hover{transform:translateY(-8px);box-shadow:0 20px 40px rgba(2,6,23,0.6)}
.project h4{margin:0 0 6px 0}
.project .tags{display:flex;gap:6px;flex-wrap:wrap}
.tag{background:rgba(255,255,255,0.03);padding:6px 8px;border-radius:999px;font-weight:700;font-size:12px}

/* timeline */
.timeline-rows{display:flex;flex-direction:column;gap:10px;margin-top:12px}
.timeline-item{display:flex;gap:12px;align-items:flex-start;opacity:0;transform:translateY(10px);transition:all .6s cubic-bezier(.2,.9,.3,1)}
.timeline-item.visible{opacity:1;transform:translateY(0)}
.timeline-item .when{min-width:120px;color:var(--muted);font-weight:700}
.timeline-item .what{background:rgba(255,255,255,0.02);padding:10px;border-radius:8px;flex:1}

/* contact form */
.contact form{display:flex;flex-direction:column;gap:8px;margin-top:12px}
.contact input,.contact textarea{padding:10px;border-radius:8px;border:1px solid rgba(255,255,255,0.04);background:transparent;color:inherit}
.form-row{display:flex;gap:8px}

/* modal */
.modal{position:fixed;inset:0;background:linear-gradient(180deg, rgba(2,6,23,0.6), rgba(2,6,23,0.85));display:flex;align-items:center;justify-content:center;z-index:100;opacity:0;pointer-events:none;transition:opacity .25s ease}
.modal[aria-hidden="false"]{opacity:1;pointer-events:auto}
.modal-content{background:linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));padding:20px;border-radius:12px;max-width:800px;width:94%;border:1px solid rgba(255,255,255,0.03)}
.modal-close{background:transparent;border:0;color:var(--muted);font-size:20px;float:right;cursor:pointer}

/* utilities */
.muted{color:var(--muted)}
.small{font-size:13px;color:var(--muted)}
.bullets{margin-top:8px;padding-left:18px}

/* responsive */
@media (max-width:900px){
  .hero{flex-direction:column}
  .hero-right,.details{width:100%}
  .details{grid-template-columns:1fr}
  .topbar{padding:12px}
}

/* accessibility focus */
.lang-btn:focus,.btn:focus,.copy:focus{outline:2px dashed rgba(0,245,255,0.12);outline-offset:3px}