:root {
  --bg: #07070a;
  --bg-elevated: #0d0e13;
  --card-bg: rgba(255, 255, 255, 0.045);
  --card-bg-hover: rgba(255, 255, 255, 0.07);
  --card-border: rgba(255, 255, 255, 0.09);
  --text: #f4f5f8;
  --text-muted: #9598a6;
  --accent: #8b7bff;
  --accent-2: #33e2c0;
  --gradient: linear-gradient(135deg, var(--accent), var(--accent-2));
  --radius: 20px;
  --radius-sm: 14px;
  --max-width: 1080px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  inset: -20% -10% auto -10%;
  height: 700px;
  background:
    radial-gradient(circle at 20% 20%, color-mix(in srgb, var(--accent) 30%, transparent), transparent 60%),
    radial-gradient(circle at 80% 0%, color-mix(in srgb, var(--accent-2) 22%, transparent), transparent 55%);
  filter: blur(10px);
  pointer-events: none;
  z-index: 0;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

h1, h2, h3 { line-height: 1.2; margin: 0 0 12px; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.6rem, 3vw, 2rem); margin-bottom: 28px; font-weight: 800; }
.section-subtitle { max-width: 560px; margin: -18px 0 28px; font-size: 0.95rem; }
h3 { font-size: 1.05rem; font-weight: 700; color: var(--text); }
p { color: var(--text-muted); margin: 0 0 8px; }
a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }
ul { padding-left: 20px; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin-bottom: 18px;
}
.eyebrow::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gradient);
}

/* Header / Nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 65%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--card-border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.logo {
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--text);
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #07070a;
}

.nav-links {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 28px;
  margin: 0;
  padding: 0;
}

.nav-links a { color: var(--text-muted); font-weight: 500; font-size: 0.92rem; }
.nav-links a:hover { color: var(--text); text-decoration: none; }
.nav-cta {
  background: var(--gradient);
  color: #07070a !important;
  font-weight: 700 !important;
  padding: 9px 18px;
  border-radius: 999px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span { width: 22px; height: 2px; background: var(--text); }

/* Hero */
.hero { text-align: center; padding: 88px 20px 64px; }

.hero-avatar {
  width: 168px;
  height: 168px;
  box-sizing: border-box;
  border-radius: 36px;
  object-fit: cover;
  display: block;
  margin: 0 auto 28px;
  padding: 5px;
  background: var(--gradient);
  box-shadow: 0 25px 55px -18px rgba(0,0,0,0.8);
}

@media (min-width: 640px) {
  .hero-avatar { width: 208px; height: 208px; border-radius: 44px; }
}

.hero h1 {
  font-size: clamp(2.4rem, 7vw, 4.2rem);
  font-weight: 900;
  margin-bottom: 10px;
  background: linear-gradient(135deg, #ffffff, #b9bcc9);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-title { font-size: 1.15rem; color: var(--text); font-weight: 600; margin-bottom: 4px; }
.hero-location { font-size: 0.9rem; margin-bottom: 24px; }
.hero-summary { max-width: 680px; margin: 0 auto 32px; }

.hero-links { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; font-weight: 600; }

.hero-links a {
  color: var(--text);
  text-decoration: none;
  padding: 10px 20px;
  border-radius: 999px;
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}
.hero-links a:hover {
  background: var(--card-bg-hover);
  border-color: color-mix(in srgb, var(--accent) 50%, var(--card-border));
  transform: translateY(-2px);
}

/* Sections */
.section { padding: 64px 20px; }

/* Reveal animation */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* Bento grid base */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: minmax(120px, auto);
  gap: 16px;
}

.bento-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 22px;
  grid-column: span 2;
  transition: background 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
}
.bento-card:hover {
  background: var(--card-bg-hover);
  border-color: color-mix(in srgb, var(--accent) 40%, var(--card-border));
  transform: translateY(-3px);
}
.bento-card p { font-size: 0.9rem; margin: 0; }
.bento-card--wide { grid-column: span 4; }
.bento-card--narrow { grid-column: span 2; }

@media (min-width: 720px) {
  .bento-card--third { grid-column: span 1; }
}

/* Skills */
.tag-row { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.tag {
  display: inline-block;
  font-size: 0.78rem;
  color: var(--text-muted);
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--card-border);
  padding: 5px 14px;
  border-radius: 999px;
}

/* GenAI panel */
.genai-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  margin: 4px 0 20px;
}
.genai-stat { flex: 1 1 200px; min-width: 160px; }
.genai-value {
  display: block;
  font-size: 1.7rem;
  font-weight: 800;
  margin-bottom: 6px;
  background: linear-gradient(135deg, #ffffff, #c7c9d6);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.genai-label { font-size: 0.82rem; color: var(--text-muted); line-height: 1.45; }

/* Impact / stat tiles */
.stat-tile { text-align: left; }
.stat-value {
  font-size: clamp(1.9rem, 4vw, 2.4rem);
  font-weight: 800;
  color: var(--text);
  font-variant-numeric: proportional-nums;
  display: block;
  margin-bottom: 4px;
  background: linear-gradient(135deg, #ffffff, #c7c9d6);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat-label { font-size: 0.86rem; color: var(--text-muted); margin: 0; }

/* Bar chart */
.bar-chart { grid-column: span 4; }
.bar-chart-title { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-muted); font-weight: 700; margin-bottom: 20px; }
.bar-row {
  display: grid;
  grid-template-columns: minmax(140px, 210px) 1fr 56px;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}
.bar-row:last-child { margin-bottom: 0; }
.bar-label-group { display: flex; flex-direction: column; }
.bar-label { font-size: 0.88rem; color: var(--text); font-weight: 600; }
.bar-company { font-size: 0.74rem; color: var(--text-muted); }
.bar-track {
  position: relative;
  height: 12px;
  background: rgba(255,255,255,0.06);
  border-radius: 4px;
}
.bar-fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: 0;
  background: var(--gradient);
  border-radius: 0 4px 4px 0;
  transition: width 1.1s cubic-bezier(0.16, 1, 0.3, 1);
}
.bar-value {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text);
  text-align: right;
  font-variant-numeric: tabular-nums;
}

@media (max-width: 640px) {
  .bar-row { grid-template-columns: 1fr; gap: 6px; }
  .bar-value { text-align: left; }
}

/* Timeline */
.timeline { display: flex; flex-direction: column; gap: 16px; }
.timeline-item {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 24px;
  position: relative;
  transition: background 0.25s ease, border-color 0.25s ease;
}
.timeline-item:hover { background: var(--card-bg-hover); }
.timeline-heading { margin-bottom: 10px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 10px; justify-content: space-between; }
.timeline-meta { color: var(--text-muted); font-size: 0.85rem; font-weight: 500; white-space: nowrap; }
.timeline-item ul { margin: 0; padding-left: 18px; }
.timeline-item li { margin-bottom: 6px; font-size: 0.95rem; color: var(--text-muted); }

/* Projects */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: minmax(150px, auto);
  gap: 16px;
}
.project-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 22px;
  grid-column: span 2;
  transition: background 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
}
.project-card:hover {
  background: var(--card-bg-hover);
  border-color: color-mix(in srgb, var(--accent-2) 40%, var(--card-border));
  transform: translateY(-3px);
}
.project-card--featured { grid-column: span 4; }
@media (min-width: 900px) {
  .project-card--featured { grid-column: span 4; }
}
.project-org {
  display: inline-block;
  font-size: 0.78rem;
  color: var(--accent-2);
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.project-card p:last-child { font-size: 0.9rem; margin: 0; }

/* Certifications / achievements */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.plain-list { list-style: none; padding: 0; margin: 0; }
.plain-list li {
  padding: 10px 0;
  border-bottom: 1px solid var(--card-border);
  font-size: 0.92rem;
  color: var(--text);
}
.plain-list li:last-child { border-bottom: none; }

/* Contact */
.contact-card {
  background: var(--gradient);
  border-radius: var(--radius);
  padding: 48px 24px;
  text-align: center;
}
.contact-card h2, .contact-card p { color: #07070a; }
.contact-card .hero-links a {
  background: rgba(7,7,10,0.12);
  border-color: rgba(7,7,10,0.2);
  color: #07070a;
}
.contact-card .hero-links a:hover { background: rgba(7,7,10,0.2); }

/* Footer */
.site-footer {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--card-border);
}

/* Responsive */
@media (max-width: 860px) {
  .bento-grid, .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .bento-card, .bento-card--wide, .project-card, .project-card--featured { grid-column: span 2; }
}

@media (max-width: 720px) {
  .two-col { grid-template-columns: 1fr; }
  .nav-toggle { display: flex; }
  .nav-links {
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--bg-elevated);
    flex-direction: column;
    align-items: flex-start;
    padding: 16px 24px;
    border-bottom: 1px solid var(--card-border);
    display: none;
  }
  .nav-links.open { display: flex; }
  .timeline-heading { flex-direction: column; gap: 2px; }
}

@media (max-width: 520px) {
  .bento-grid, .projects-grid { grid-template-columns: 1fr; }
  .bento-card, .bento-card--wide, .project-card, .project-card--featured { grid-column: span 1; }
}