:root {
  --bg: #050816;
  --bg-soft: rgba(255,255,255,0.06);
  --bg-soft-2: rgba(255,255,255,0.1);
  --surface: rgba(255,255,255,0.07);
  --surface-2: rgba(255,255,255,0.1);
  --text: #f4f7fb;
  --muted: #c3cad7;
  --border: rgba(255,255,255,0.12);
  --accent: #7dd3fc;
  --shadow: rgba(0, 0, 0, 0.35);
  --header: rgba(5, 8, 22, 0.72);
}
body[data-theme="light"] {
  --bg: #ffffff;
  --bg-soft: rgba(255,255,255,0.92);
  --bg-soft-2: #f5f7fb;
  --surface: rgba(255,255,255,0.92);
  --surface-2: #f7f9fc;
  --text: #0f172a;
  --muted: #5b6475;
  --border: rgba(15, 23, 42, 0.10);
  --accent: #0f7abf;
  --shadow: rgba(15, 23, 42, 0.08);
  --header: rgba(255,255,255,0.82);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
.container { width: min(1180px, calc(100% - 48px)); margin: 0 auto; }
.section { padding: 88px 0; position: relative; }
.hidden { display: none !important; }
.bg-orb { position: fixed; filter: blur(90px); border-radius: 999px; opacity: 0.75; pointer-events: none; z-index: -1; }
.orb-1 { width: 32rem; height: 32rem; top: -8rem; left: 50%; transform: translateX(-50%); background: rgba(34, 211, 238, 0.18); }
.orb-2 { width: 24rem; height: 24rem; top: 28rem; left: -5rem; background: rgba(217, 70, 239, 0.16); }
.orb-3 { width: 28rem; height: 28rem; bottom: 0; right: 0; background: rgba(59, 130, 246, 0.14); }

.site-header { position: sticky; top: 0; z-index: 40; border-bottom: 1px solid var(--border); backdrop-filter: blur(18px); background: var(--header); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 16px 0; }
.brand-name { font-weight: 600; letter-spacing: 0.02em; }
.header-actions { display: flex; align-items: center; gap: 1rem; }
.desktop-nav { display: flex; gap: 1.5rem; font-size: 0.95rem; color: var(--muted); }
.desktop-nav a:hover { color: var(--text); }
.theme-toggle { border: 1px solid var(--border); background: var(--bg-soft); color: var(--text); border-radius: 18px; padding: 10px 14px; cursor: pointer; display: inline-flex; align-items: center; gap: 10px; transition: 0.2s ease; }
.theme-toggle:hover { transform: translateY(-1px); background: var(--bg-soft-2); }

.hero { padding-top: 72px; }
.hero-grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 2.5rem; align-items: center; }
.pill { display: inline-flex; align-items: center; gap: 0.55rem; padding: 10px 16px; border-radius: 999px; border: 1px solid rgba(125, 211, 252, 0.24); background: rgba(125, 211, 252, 0.10); color: #c9f2ff; font-size: 0.92rem; margin-bottom: 24px; }
body[data-theme="light"] .pill { color: #0b5e91; background: rgba(125, 211, 252, 0.16); }
h1, h2, h3, h4, p { margin: 0; }
h1 { font-size: clamp(3rem, 8vw, 5.2rem); line-height: 0.96; letter-spacing: -0.04em; font-weight: 650; }
.gradient-text { display: block; background: linear-gradient(90deg, #7dd3fc 0%, #ffffff 50%, #d8b4fe 100%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-text { font-size: 1.15rem; max-width: 50rem; margin-top: 24px; }
.cta-row, .social-row { display: flex; flex-wrap: wrap; gap: 12px; }
.cta-row { margin-top: 28px; }
.social-row { margin-top: 32px; }

.btn { display: inline-flex; align-items: center; justify-content: center; border-radius: 20px; padding: 14px 22px; font-weight: 600; border: 1px solid var(--border); transition: 0.2s ease; }
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: #ffffff; color: #050816; border-color: transparent; }
body[data-theme="light"] .btn-primary { background: #0f172a; color: white; }
.btn-secondary { background: var(--bg-soft); color: var(--text); }
.full-width { width: 100%; }
.social-chip { display: inline-flex; align-items: center; gap: 10px; border-radius: 18px; padding: 12px 16px; border: 1px solid var(--border); background: var(--surface); transition: 0.2s ease; }
.social-chip:hover { transform: translateY(-2px); background: var(--surface-2); }

.glass-card { background: var(--surface); border: 1px solid var(--border); border-radius: 30px; box-shadow: 0 20px 60px var(--shadow); backdrop-filter: blur(14px); }
.feature-card { padding: 32px; }
.feature-top { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: 28px; }
.title-sm { font-size: 1.3rem; font-weight: 600; }
.small { font-size: 0.9rem; }
.tiny { font-size: 0.82rem; }
.status-badge { border-radius: 999px; padding: 10px 14px; font-size: 0.9rem; border: 1px solid rgba(16, 185, 129, 0.22); background: rgba(16, 185, 129, 0.14); color: #9af3c6; }
body[data-theme="light"] .status-badge { color: #116149; background: rgba(16, 185, 129, 0.12); }
.feature-stack { display: grid; gap: 16px; }
.mini-card { border-radius: 22px; border: 1px solid var(--border); background: var(--bg-soft-2); padding: 18px; }
.mini-card h3 { font-size: 1rem; margin-bottom: 8px; }
.location { margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--border); }

.section-title { max-width: 54rem; margin-bottom: 2.2rem; }
.section-title h2 { font-size: clamp(2rem, 5vw, 3.3rem); line-height: 1.05; letter-spacing: -0.03em; margin-bottom: 14px; }
.eyebrow { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.28em; margin-bottom: 12px; }
.accent, .accent-text { color: var(--accent); }
.muted { color: var(--muted); }

.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.5rem; }
.grid-2 > .glass-card, .skills-grid > .glass-card, .timeline-card, .project-card, .cv-grid, .contact-card { padding: 30px; }
.grid-2 h3, .skills-grid h3, .timeline-card h3, .project-card h3 { font-size: 1.25rem; margin-bottom: 14px; }
.subsection { margin-top: 24px; }
.subsection h4 { font-size: 1.05rem; margin-bottom: 12px; color: var(--accent); }
.bullet-list { padding-left: 1.2rem; margin: 0; }
.bullet-list li { margin-bottom: 0.45rem; }

.skills-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1.25rem; }
.chip-wrap { display: flex; flex-wrap: wrap; gap: 10px; }
.chip { display: inline-flex; align-items: center; padding: 9px 12px; border-radius: 999px; border: 1px solid var(--border); background: var(--bg-soft-2); font-size: 0.88rem; color: var(--text); }

.timeline { display: grid; gap: 1.2rem; }
.timeline-card { display: grid; grid-template-columns: 240px 1fr; gap: 1.5rem; }
.timeline-meta { border-right: 1px solid var(--border); padding-right: 1.25rem; }
.role { margin-top: 12px; color: var(--text); }

.projects-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.4rem; }
.project-card { display: flex; flex-direction: column; transition: 0.25s ease; }
.project-card:hover { transform: translateY(-6px); background: var(--surface-2); }
.project-desc { margin-top: 14px; }
.project-meta { margin-top: 20px; display: grid; gap: 14px; }
.project-video { border-radius: 22px; border: 1px solid var(--border); background: var(--bg-soft-2); padding: 16px; }
.inline-link, .toggle-btn, .project-link { color: var(--accent); font-weight: 500; }
.toggle-btn { border: 0; background: transparent; padding: 0; cursor: pointer; text-align: left; }
.short-explainer { display: none; border-radius: 22px; border: 1px solid var(--border); background: var(--bg-soft-2); padding: 14px 16px; }
.short-explainer.open { display: block; }
.project-stars { font-size: 0.82rem; }
.projects-message { margin-top: 1rem; border-radius: 20px; border: 1px solid var(--border); background: var(--bg-soft-2); padding: 16px 18px; color: var(--muted); }

.skeleton-line, .skeleton-chip { position: relative; overflow: hidden; background: rgba(255,255,255,0.08); }
body[data-theme="light"] .skeleton-line, body[data-theme="light"] .skeleton-chip { background: rgba(15,23,42,0.08); }
.skeleton-line::after, .skeleton-chip::after { content: ""; position: absolute; inset: 0; transform: translateX(-100%); background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent); animation: shimmer 1.6s infinite; }
.skeleton-line { height: 14px; border-radius: 999px; margin-bottom: 12px; }
.skeleton-title { width: 42%; height: 20px; }
.skeleton-line.short { width: 70%; }
.skeleton-chip { width: 74px; height: 30px; border-radius: 999px; }
@keyframes shimmer { 100% { transform: translateX(100%); } }

.cv-grid { display: grid; grid-template-columns: 1fr 320px; gap: 2rem; }
.cv-facts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin-top: 22px; font-size: 0.94rem; }
.cv-details { margin-top: 22px; }

.contact-card { display: grid; grid-template-columns: 1fr auto; gap: 2rem; background: linear-gradient(135deg, var(--surface-2), var(--surface)); }
.contact-text { margin-top: 16px; max-width: 45rem; font-size: 1.05rem; }
.contact-links { display: flex; flex-direction: column; gap: 12px; min-width: 260px; }
.contact-link { display: inline-flex; justify-content: space-between; gap: 1rem; align-items: center; border: 1px solid var(--border); border-radius: 20px; padding: 16px 18px; background: var(--bg-soft-2); transition: 0.2s ease; }
.contact-link:hover { transform: translateY(-2px); }

.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

@media (max-width: 1024px) {
  .hero-grid, .timeline-card, .cv-grid, .contact-card, .skills-grid, .projects-grid, .grid-2 { grid-template-columns: 1fr; }
  .timeline-meta { border-right: 0; padding-right: 0; border-bottom: 1px solid var(--border); padding-bottom: 1rem; }
}
@media (max-width: 720px) {
  .desktop-nav { display: none; }
  .container { width: min(100% - 28px, 1180px); }
  .section { padding: 72px 0; }
  .hero { padding-top: 48px; }
  .feature-top, .header-inner { align-items: flex-start; }
  .header-inner, .header-actions { flex-direction: column; }
}