:root {
  --bg: #08101d;
  --bg-2: #0d1729;
  --surface: rgba(18, 30, 50, 0.84);
  --surface-solid: #101d32;
  --surface-soft: #15243c;
  --text: #f8fafc;
  --muted: #a7b5cd;
  --primary: #4f8cff;
  --primary-2: #62d1db;
  --border: rgba(148, 163, 184, 0.18);
  --success: #26d490;
  --shadow: 0 28px 80px rgba(0, 0, 0, .24);
  --max: 1160px;
  --radius: 24px;
}
html[data-theme="light"] {
  --bg: #f8fafc;
  --bg-2: #eef4ff;
  --surface: rgba(255, 255, 255, 0.9);
  --surface-solid: #ffffff;
  --surface-soft: #eff5ff;
  --text: #0b1527;
  --muted: #52637d;
  --primary: #245fe2;
  --primary-2: #097f95;
  --border: rgba(15, 23, 42, .12);
  --shadow: 0 24px 70px rgba(23, 40, 72, .10);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; color: var(--text); background: var(--bg);
  font-family: Inter, "Segoe UI", Roboto, Arial, sans-serif; line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
body::before {
  content:""; position: fixed; inset: 0; z-index: -1; pointer-events:none;
  background: radial-gradient(circle at 86% 5%, rgba(79,140,255,.22), transparent 34%),
              radial-gradient(circle at 16% 23%, rgba(98,209,219,.11), transparent 31%),
              linear-gradient(180deg, var(--bg-2), var(--bg));
}
a { color: inherit; text-decoration: none; }
p { margin: 0 0 1.15rem; color: var(--muted); }
h1,h2,h3 { margin: 0 0 1rem; line-height: 1.14; letter-spacing: -.035em; }
h1 { font-size: clamp(3.1rem, 6vw, 5.65rem); font-weight: 780; }
h2 { font-size: clamp(2rem, 3.4vw, 3.08rem); font-weight: 740; }
h3 { font-size: 1.36rem; font-weight: 700; }
.container { width: min(var(--max), calc(100% - 3rem)); margin: 0 auto; }
.skip-link { position:absolute; left:-999px; top: 1rem; background:var(--primary); color:#fff; padding:.6rem 1rem; z-index:50; }
.skip-link:focus { left: 1rem; }
.site-header { position: sticky; top: 0; z-index: 20; border-bottom: 1px solid transparent; background: rgba(8,16,29,.52); backdrop-filter: blur(16px); }
html[data-theme="light"] .site-header { background: rgba(248,250,252,.78); }
.site-header.scrolled { border-bottom-color: var(--border); }
.nav { height: 78px; display:flex; align-items:center; justify-content:space-between; gap: 1.25rem; }
.brand { display:flex; align-items:center; gap:.72rem; font-weight:700; white-space:nowrap; }
.brand-mark { display:grid; place-items:center; width:42px; height:42px; border-radius:13px; background: linear-gradient(135deg, var(--primary), var(--primary-2)); color:#fff; font-size:.82rem; letter-spacing:.04em; }
.brand-text { font-size: 1.03rem; }
.nav-links { display:flex; align-items:center; gap:1.5rem; margin-left:auto; }
.nav-links a { color:var(--muted); font-size:.95rem; transition:color .2s; }
.nav-links a:hover, .nav-links a:focus-visible { color:var(--text); }
.nav-cv { border:1px solid var(--border); padding:.42rem .85rem; border-radius:999px; }
.actions { display:flex; gap:.5rem; }
.lang-toggle,.theme-toggle,.menu-toggle { appearance:none; background:var(--surface-solid); border:1px solid var(--border); color:var(--text); cursor:pointer; }
.lang-toggle,.theme-toggle { height:42px; min-width:46px; border-radius:12px; font-weight:700; }
.menu-toggle { display:none; width:44px; height:44px; border-radius:12px; flex-direction:column; justify-content:center; align-items:center; gap:5px; }
.menu-toggle span:not(.sr-only) { display:block; width:19px; height:2px; background:var(--text); }
.sr-only { position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip-path:inset(50%); white-space:nowrap; border:0; }
.hero { padding: 6.1rem 0 4.4rem; }
.hero-grid { display:grid; grid-template-columns: minmax(0, 1.35fr) 390px; gap: 4.2rem; align-items:center; }
.eyebrow { text-transform:uppercase; letter-spacing:.13em; color:var(--primary-2); font-size:.78rem; font-weight:760; margin-bottom:1.2rem; }
.gradient-text { color: transparent; background: linear-gradient(95deg, var(--primary), var(--primary-2)); background-clip:text; -webkit-background-clip:text; }
.lead { color:var(--text); font-size: clamp(1.2rem, 1.6vw, 1.43rem); max-width: 640px; margin: 1.55rem 0 1.05rem; }
.summary { max-width: 660px; font-size:1.02rem; }
.hero-actions { display:flex; gap:.82rem; flex-wrap:wrap; margin:2.3rem 0; }
.button { display:inline-flex; align-items:center; justify-content:center; min-height:52px; padding: .72rem 1.45rem; border-radius:13px; font-weight:670; transition: transform .18s, box-shadow .18s, background .18s; }
.button:hover { transform: translateY(-2px); }
.button.primary { color:#fff; background:linear-gradient(115deg, var(--primary), #3878ef); box-shadow:0 12px 28px rgba(44,101,224,.34); }
.button.secondary { border:1px solid var(--border); background:var(--surface-solid); }
.status { display:flex; flex-wrap:wrap; gap:.55rem; }
.status span { font-size:.9rem; color:var(--muted); border:1px solid var(--border); border-radius:999px; padding:.36rem .7rem; }
.profile-card { position:relative; padding:1.5rem; border:1px solid var(--border); border-radius:var(--radius); background:var(--surface); box-shadow: var(--shadow); overflow:hidden; }
.profile-card::after { content:""; position:absolute; right:-65px; top:-75px; width:180px; height:180px; border-radius:50%; background:rgba(79,140,255,.15); filter:blur(4px); }
.profile-head { display:flex; align-items:center; gap:1rem; position:relative; z-index:1; }
.profile-head h2 { font-size:1.32rem; margin:0 0 .22rem; }
.profile-head p { font-size:.9rem; margin:0; }
.avatar { display:grid; place-items:center; width:68px; height:68px; background:linear-gradient(135deg, var(--primary), var(--primary-2)); border-radius:19px; font-weight:760; letter-spacing:.06em; color:white; }
.availability { display:flex; align-items:center; gap:.55rem; margin:1.45rem 0 1.15rem; color:var(--success); font-size:.92rem; font-weight:650; }
.dot { width:9px; height:9px; border-radius:50%; background:var(--success); box-shadow:0 0 0 6px rgba(38,212,144,.12); }
.profile-list { margin:0; }
.profile-list div { display:flex; justify-content:space-between; gap:1rem; border-top:1px solid var(--border); padding:.82rem 0; }
.profile-list dt { color:var(--muted); font-size:.88rem; }
.profile-list dd { margin:0; text-align:right; font-size:.88rem; max-width:215px; }
.profile-links { border-top:1px solid var(--border); margin-top:.4rem; padding-top:1rem; display:flex; flex-direction:column; gap:.55rem; font-size:.94rem; color:var(--primary-2); }
.metrics { padding: 0 0 2rem; }
.metrics-grid { display:grid; grid-template-columns:repeat(4,1fr); border:1px solid var(--border); border-radius: var(--radius); background:var(--surface); overflow:hidden; }
.metrics article { padding:1.7rem 1.35rem; border-right:1px solid var(--border); }
.metrics article:last-child { border-right:none; }
.metrics strong { display:block; font-size:2.35rem; letter-spacing:-.045em; color:var(--text); line-height:1.1; margin-bottom:.35rem; }
.metrics span { display:block; color:var(--muted); font-size:.92rem; line-height:1.4; }
.section { padding:5.2rem 0; }
.section-heading { max-width:600px; margin-bottom:2.9rem; }
.section-heading.centered { text-align:center; margin-left:auto; margin-right:auto; max-width:720px; }
.about-grid { display:grid; grid-template-columns:.9fr 1fr; gap:5rem; }
.about-content { font-size:1.05rem; }
.mini-tags { display:flex; flex-wrap:wrap; gap:.6rem; padding-top:.65rem; }
.mini-tags span, .tech span { padding:.32rem .65rem; border-radius:999px; background:var(--surface-soft); color:var(--muted); font-size:.84rem; }
.cases { background: rgba(10, 18, 33, .22); }
html[data-theme="light"] .cases { background: rgba(230,238,253,.34); }
.featured-case { display:grid; grid-template-columns: .72fr 1.28fr; gap:3rem; padding:2.5rem; background:var(--surface); border:1px solid var(--border); border-radius:var(--radius); margin-bottom:1.25rem; }
.case-visual { display:grid; place-items:center; min-height:370px; border-radius:20px; background:linear-gradient(145deg, rgba(79,140,255,.19), rgba(98,209,219,.08)); }
.sheet { width:210px; height:278px; border-radius:9px; background:#fff; padding:30px 22px; position:relative; transform:rotate(-2deg); box-shadow:0 22px 45px rgba(0,0,0,.24); }
.sheet-title { width:65%; height:10px; background:#dce5f2; margin:0 auto 32px; border-radius:3px; }
.bubbles { display:flex; justify-content:space-between; margin:18px 0; }
.bubbles i { width:22px; height:22px; border-radius:50%; border:2px solid #afbdcf; display:block; }
.bubbles i.checked { background:#2869e6; border-color:#2869e6; box-shadow: inset 0 0 0 5px white; }
.scan-line { position:absolute; left:0; right:0; top:128px; height:3px; background:rgba(38,212,144,.75); box-shadow:0 0 12px rgba(38,212,144,.8); }
.badge { display:inline-block; background:rgba(79,140,255,.15); color:var(--primary-2); padding:.35rem .72rem; border-radius:999px; font-size:.79rem; font-weight:730; margin-bottom:1.18rem; }
.case-body h3 { font-size:clamp(1.65rem, 2.3vw, 2.2rem); }
.tech { display:flex; flex-wrap:wrap; gap:.5rem; margin:1.3rem 0 1.35rem; }
.results,.case-points { padding:0; margin:0; list-style:none; display:grid; gap:.72rem; }
.results li,.case-points li { position:relative; padding-left:1.5rem; color:var(--muted); }
.results li::before,.case-points li::before { content:"✓"; position:absolute; left:0; color:var(--success); font-weight:700; }
.case-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:1.25rem; }
.case-card { padding:2rem; border:1px solid var(--border); border-radius:var(--radius); background:var(--surface); }
.case-icon { display:grid; place-items:center; width:48px; height:48px; border-radius:14px; background:var(--surface-soft); color:var(--primary-2); font-weight:750; margin-bottom:1.35rem; }
.case-card h3 { font-size:1.42rem; }
.case-points { font-size:.93rem; }
.timeline { position:relative; max-width:920px; }
.timeline::before { content:""; position:absolute; left:212px; top:8px; bottom:8px; width:1px; background:var(--border); }
.role { display:grid; grid-template-columns:185px 1fr; gap:3.15rem; margin-bottom:2.65rem; position:relative; }
.role:last-child { margin-bottom:0; }
.role::before { content:""; position:absolute; left:206px; top:9px; width:13px; height:13px; background:var(--primary); border-radius:50%; border:4px solid var(--bg); transform:translateX(-50%); }
.role-date { color:var(--primary-2); font-weight:650; font-size:.93rem; padding-top:.2rem; }
.role-content h3 { margin-bottom:.35rem; }
.company { color:var(--text); font-weight:600; margin-bottom:.85rem; }
.skills-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:1rem; }
.skill-card { padding:1.6rem; border:1px solid var(--border); border-radius:19px; background:var(--surface); }
.skill-card h3 { font-size:1.12rem; margin-bottom:.78rem; }
.skill-card p { font-size:.93rem; margin:0; }
.columns { display:grid; grid-template-columns:.82fr 1.18fr; gap:4.5rem; align-items:start; }
.edu-card { padding:1.25rem 0; border-bottom:1px solid var(--border); }
.edu-card h3 { font-size:1.15rem; margin-bottom:.3rem; }
.edu-card p { margin:0; }
.opportunity { padding:2.45rem; border:1px solid var(--border); border-radius:var(--radius); background:var(--surface); }
.opportunity h2 { font-size:clamp(1.75rem,3vw,2.35rem); }
.opportunity-points { display:flex; flex-wrap:wrap; gap:.55rem; margin-top:1.7rem; }
.opportunity-points span { border:1px solid var(--border); padding:.37rem .7rem; border-radius:999px; font-size:.87rem; color:var(--muted); }
.contact-panel { display:grid; grid-template-columns:1.35fr .65fr; gap:2.2rem; align-items:center; border:1px solid var(--border); background:linear-gradient(135deg, var(--surface-solid), var(--surface)); padding:3.1rem; border-radius:var(--radius); }
.contact-panel h2 { margin-bottom:.85rem; }
.contact-panel p { margin:0; }
.contact-actions { display:flex; flex-direction:column; gap:.8rem; }
.text-link { text-align:center; color:var(--primary-2); padding:.45rem; font-weight:650; }
.site-footer { border-top:1px solid var(--border); padding:1.8rem 0 2.3rem; }
.footer-content { display:flex; justify-content:space-between; gap:1rem; font-size:.91rem; }
.footer-content p { margin:0; }
.footer-content a { color:var(--muted); }
.reveal { opacity:0; transform:translateY(12px); transition:opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity:1; transform:none; }
:focus-visible { outline:3px solid rgba(79,140,255,.65); outline-offset:3px; }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior:auto !important; animation:none !important; transition:none !important; } .reveal { opacity:1; transform:none; } }
@media (max-width: 980px) {
  .nav-links { position:fixed; left:1.5rem; right:1.5rem; top:86px; display:none; flex-direction:column; align-items:stretch; padding:1rem; background:var(--surface-solid); border:1px solid var(--border); border-radius:18px; box-shadow:var(--shadow); }
  .nav-links.open { display:flex; }
  .nav-links a { padding:.55rem; }
  .menu-toggle { display:flex; margin-left:auto; }
  .actions { order: 4; }
  .hero-grid,.about-grid,.featured-case,.columns,.contact-panel { grid-template-columns:1fr; gap:2.5rem; }
  .hero { padding-top:4.2rem; }
  .profile-card { max-width:480px; }
  .metrics-grid,.skills-grid { grid-template-columns:repeat(2,1fr); }
  .metrics article:nth-child(2) { border-right:none; }
  .metrics article:nth-child(-n+2) { border-bottom:1px solid var(--border); }
  .case-visual { min-height:295px; }
  .timeline::before { left:6px; }
  .role { grid-template-columns:1fr; gap:.55rem; padding-left:32px; }
  .role::before { left:6px; top:8px; }
  .contact-actions { max-width:320px; }
}
@media (max-width: 620px) {
  .container { width:min(var(--max), calc(100% - 2rem)); }
  .brand-text { display:none; }
  .hero { padding:3rem 0 3.2rem; }
  h1 { font-size: clamp(2.55rem, 14vw, 3.35rem); }
  .hero-actions .button { width:100%; }
  .profile-card,.featured-case,.case-card,.opportunity,.contact-panel { padding:1.4rem; }
  .metrics-grid,.skills-grid,.case-grid { grid-template-columns:1fr; }
  .metrics article { border-right:none; border-bottom:1px solid var(--border) !important; }
  .metrics article:last-child { border-bottom:none !important; }
  .case-visual { min-height:260px; }
  .sheet { transform:scale(.82) rotate(-2deg); }
  .section { padding:3.8rem 0; }
  .footer-content { flex-direction:column; }
}