:root {
  --bg: #09111f;
  --surface: #101b2d;
  --surface-2: #15243a;
  --text: #eef4ff;
  --muted: #a9b7ca;
  --accent: #5eead4;
  --accent-2: #60a5fa;
  --border: rgba(255,255,255,.1);
  --max: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(circle at 80% 5%, rgba(96,165,250,.14), transparent 26rem),
    radial-gradient(circle at 10% 25%, rgba(94,234,212,.09), transparent 24rem),
    var(--bg);
  color: var(--text);
  font-family: Inter, sans-serif;
  line-height: 1.65;
}
a { color: inherit; text-decoration: none; }
.site-header {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  max-width: var(--max); margin: auto; padding: 1.1rem 1.5rem;
  background: rgba(9,17,31,.82); backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.logo {
  display: grid; place-items: center; width: 44px; height: 44px;
  border: 1px solid var(--accent); border-radius: 14px;
  color: var(--accent); font-family: "Space Grotesk"; font-weight: 700;
}
.nav { display: flex; gap: 1.5rem; }
.nav a { color: var(--muted); font-size: .94rem; }
.nav a:hover { color: var(--accent); }
.menu-button { display:none; background:none; border:0; color:var(--text); font-size:1.5rem; }
.section { max-width: var(--max); margin: auto; padding: 6rem 1.5rem; }
.hero {
  min-height: 82vh; display: grid; grid-template-columns: 1.35fr .75fr;
  gap: 4rem; align-items: center;
}
.eyebrow { color: var(--accent); font-weight: 800; letter-spacing: .16em; font-size: .78rem; }
h1,h2,h3 { font-family: "Space Grotesk", sans-serif; line-height: 1.12; }
h1 { font-size: clamp(3rem, 7vw, 6rem); margin: .5rem 0 1rem; letter-spacing: -.05em; }
h1 span { color: var(--accent); }
.hero-title { font-size: clamp(1.2rem, 2.2vw, 1.65rem); font-weight: 700; }
.hero-text { max-width: 680px; color: var(--muted); font-size: 1.08rem; }
.hero-actions { display:flex; gap:1rem; flex-wrap:wrap; margin-top:2rem; }
.button { padding:.85rem 1.15rem; border-radius:12px; font-weight:700; border:1px solid var(--border); }
.primary { background:var(--accent); color:#07121d; border-color:var(--accent); }
.secondary:hover { border-color:var(--accent); color:var(--accent); }
.hero-card, .card, .project-card {
  background: linear-gradient(145deg, rgba(21,36,58,.95), rgba(16,27,45,.92));
  border:1px solid var(--border); border-radius:24px;
}
.hero-card { padding:2rem; box-shadow:0 25px 70px rgba(0,0,0,.25); }
.status { color:var(--muted); font-size:.9rem; }
.status span { display:inline-block; width:9px; height:9px; border-radius:50%; background:var(--accent); margin-right:.45rem; }
.tool-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:.7rem; margin-top:1.5rem; }
.tool-grid span { padding:.8rem; background:rgba(255,255,255,.05); border-radius:10px; text-align:center; color:var(--muted); }
.section-heading { max-width:750px; margin-bottom:2.5rem; }
.section-heading h2, .contact h2 { font-size:clamp(2.2rem,5vw,4rem); margin:.5rem 0; letter-spacing:-.04em; }
.section-note { color:var(--muted); }
.about-grid { display:grid; grid-template-columns:1.25fr 1fr; gap:4rem; }
.about-grid > p { color:var(--muted); font-size:1.15rem; margin:0; }
.facts { display:grid; grid-template-columns:repeat(3,1fr); gap:1rem; }
.facts div { padding:1.3rem; border-top:2px solid var(--accent); background:rgba(255,255,255,.035); }
.facts strong { display:block; font-size:1.7rem; }
.facts span { color:var(--muted); font-size:.8rem; }
.cards { display:grid; gap:1.2rem; }
.cards.three { grid-template-columns:repeat(3,1fr); }
.card, .project-card { padding:1.6rem; }
.card p, .project-card p { color:var(--muted); }
.timeline { border-left:1px solid var(--border); margin-left:.4rem; }
.timeline-item { position:relative; display:grid; grid-template-columns:200px 1fr; gap:2rem; padding:0 0 3rem 2rem; }
.timeline-item::before { content:""; position:absolute; width:11px; height:11px; border-radius:50%; background:var(--accent); left:-6px; top:.35rem; }
.timeline-date, .company { color:var(--muted); }
.timeline h3 { margin:0; font-size:1.55rem; }
.timeline ul { color:var(--muted); padding-left:1.1rem; }
.project-number { color:var(--accent)!important; font-weight:800; }
.project-card span { color:var(--accent-2); font-size:.85rem; font-weight:700; }
.education-list { display:grid; gap:1rem; }
.education-list article { padding:1.5rem 0; border-top:1px solid var(--border); }
.education-list p, .education-list span { color:var(--muted); }
.education-list h3 { margin:.3rem 0; }
.contact { text-align:center; padding-top:8rem; padding-bottom:8rem; }
.contact > p:not(.eyebrow) { color:var(--muted); max-width:650px; margin:1rem auto 2rem; }
.contact-links { display:flex; justify-content:center; gap:1rem; flex-wrap:wrap; }
.contact-links a { padding:.85rem 1.1rem; border:1px solid var(--border); border-radius:12px; }
.contact-links a:hover { border-color:var(--accent); color:var(--accent); }
footer { text-align:center; color:var(--muted); padding:2rem 1rem; border-top:1px solid var(--border); font-size:.85rem; }

@media (max-width: 800px) {
  .menu-button { display:block; }
  .nav {
    display:none; position:absolute; top:70px; left:1rem; right:1rem;
    flex-direction:column; padding:1rem; background:var(--surface);
    border:1px solid var(--border); border-radius:14px;
  }
  .nav.open { display:flex; }
  .hero, .about-grid { grid-template-columns:1fr; }
  .hero { padding-top:4rem; gap:2rem; }
  .cards.three { grid-template-columns:1fr; }
  .facts { grid-template-columns:1fr; }
  .timeline-item { grid-template-columns:1fr; gap:.3rem; }
  .section { padding:4.5rem 1.2rem; }
}
/* Academic project section */

.project-grid {
  grid-template-columns: repeat(2, 1fr);
}

.project-card {
  display: flex;
  flex-direction: column;
}

.project-card h3 {
  margin-top: 0;
}

.project-card > p {
  flex-grow: 1;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1.25rem 0;
}

.project-tags span {
  padding: 0.35rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.78rem;
}

.project-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: auto;
}

.project-links a {
  display: inline-block;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--accent);
  border-radius: 10px;
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 700;
}

.project-links a:hover {
  background: var(--accent);
  color: var(--bg);
}

@media (max-width: 800px) {
  .project-grid {
    grid-template-columns: 1fr;
  }
}
/* Business project case study */

.business-project {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.4fr);
  gap: 2rem;
  padding: 2rem;
  background: linear-gradient(
    145deg,
    rgba(21, 36, 58, 0.96),
    rgba(16, 27, 45, 0.94)
  );
  border: 1px solid var(--border);
  border-radius: 24px;
}

.business-project-content h3 {
  margin: 0.4rem 0 1rem;
  font-size: clamp(1.8rem, 3vw, 2.7rem);
}

.business-project-content h4 {
  margin: 1.5rem 0 0.75rem;
}

.business-project-content > p {
  color: var(--muted);
}

.project-highlights {
  padding-left: 1.2rem;
  color: var(--muted);
}

.project-highlights li {
  margin-bottom: 0.5rem;
}

.project-highlights li::marker {
  color: var(--accent);
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1.5rem 0;
}

.project-tags span {
  padding: 0.4rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.78rem;
}

.project-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.project-links a {
  display: inline-block;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--accent);
  border-radius: 10px;
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 700;
}

.project-links a:hover {
  background: var(--accent);
  color: var(--bg);
}

.workflow-preview {
  min-width: 0;
  overflow: hidden;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 18px;
}

.preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.8rem 1rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.8rem;
}

.preview-header div {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.preview-header a {
  color: var(--accent);
  font-weight: 700;
}

.preview-status {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px rgba(94, 234, 212, 0.7);
}

.workflow-preview iframe {
  display: block;
  width: 100%;
  height: 650px;
  border: 0;
  background: var(--bg);
}

@media (max-width: 950px) {
  .business-project {
    grid-template-columns: 1fr;
  }

  .workflow-preview iframe {
    height: 600px;
  }
}

@media (max-width: 600px) {
  .business-project {
    padding: 1.2rem;
  }

  .workflow-preview iframe {
    height: 650px;
  }
}


/* Add this block at the bottom of style.css */

.language-switcher {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.25rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.04);
}

.language-button {
  min-width: 38px;
  padding: 0.45rem 0.6rem;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: var(--muted);
  font-family: inherit;
  font-size: 0.78rem;
  font-weight: 800;
  cursor: pointer;
}

.language-button:hover { color: var(--accent); }
.language-button.active { background: var(--accent); color: var(--bg); }

@media (max-width: 800px) {
  .site-header { flex-wrap: wrap; gap: 0.75rem; }
  .language-switcher { margin-left: auto; }
}