:root {
  --bg: #07111f;
  --bg-soft: #0d1b2f;
  --panel: rgba(255,255,255,0.06);
  --panel-strong: rgba(255,255,255,0.1);
  --text: #eef4ff;
  --muted: #b8c6dd;
  --line: rgba(255,255,255,0.12);
  --accent: #67e8f9;
  --accent-2: #60a5fa;
  --accent-3: #a78bfa;
  --success: #86efac;
  --shadow: 0 20px 60px rgba(0,0,0,0.35);
  --radius: 22px;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(96,165,250,0.2), transparent 30%),
    radial-gradient(circle at top right, rgba(167,139,250,0.18), transparent 28%),
    linear-gradient(180deg, #04101d 0%, #07111f 45%, #091427 100%);
  line-height: 1.6;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.bg-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(circle at center, black 35%, transparent 85%);
  opacity: 0.35;
  z-index: 0;
}

.cursor-glow {
  position: fixed;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(103,232,249,0.12), transparent 62%);
  pointer-events: none;
  z-index: 0;
  transform: translate(-50%, -50%);
  transition: transform 0.15s ease-out;
  filter: blur(14px);
}

.container {
  width: min(var(--max), calc(100% - 2rem));
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

nav {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(16px);
  background: rgba(7,17,31,0.72);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.nav-inner {
  width: min(var(--max), calc(100% - 2rem));
  margin: 0 auto;
  padding: 1rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  font-weight: 800;
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-3));
  color: #04101d;
  font-weight: 900;
  box-shadow: var(--shadow);
}

.nav-links {
  display: flex;
  gap: 1.2rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-links a {
  color: var(--muted);
  font-size: 0.95rem;
  padding: 0.55rem 0.8rem;
  border-radius: 999px;
  transition: 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
  background: rgba(255,255,255,0.08);
}

section {
  padding: 5.5rem 0;
  scroll-margin-top: 90px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.78rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.eyebrow::before {
  content: "";
  width: 30px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}

.hero {
  min-height: calc(100vh - 74px);
  display: grid;
  align-items: center;
  grid-template-columns: 1.25fr 0.85fr;
  gap: 2rem;
  padding-top: 2.5rem;
}

.hero-card,
.panel,
.project-card,
.timeline-item,
.skill-card,
.contact-card,
.stat {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero h1 {
  font-size: clamp(2.8rem, 7vw, 5.6rem);
  line-height: 0.95;
  margin: 0 0 1rem;
  letter-spacing: -0.04em;
}

.gradient-text {
  background: linear-gradient(135deg, var(--accent), var(--accent-2), var(--accent-3));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero p {
  font-size: 1.08rem;
  color: var(--muted);
  max-width: 680px;
  margin: 0 0 1.5rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 1.4rem;
}

.btn {
  padding: 0.95rem 1.25rem;
  border-radius: 14px;
  font-weight: 700;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
  border: 1px solid transparent;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}

.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #04101d;
}

.btn-secondary {
  background: rgba(255,255,255,0.04);
  color: var(--text);
  border-color: rgba(255,255,255,0.12);
}

.hero-side {
  padding: 1.4rem;
  position: relative;
  overflow: hidden;
}

.hero-side::before {
  content: "";
  position: absolute;
  inset: auto -10% -25% auto;
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, rgba(96,165,250,0.24), transparent 65%);
  filter: blur(10px);
}

.profile-box {
  display: grid;
  gap: 1rem;
}

.avatar {
  width: 100%;
  min-height: 260px;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(103,232,249,0.12), rgba(96,165,250,0.12), rgba(167,139,250,0.12));
  border: 1px solid rgba(255,255,255,0.12);
  display: grid;
  place-items: center;
  text-align: center;
  padding: 2rem;
  font-size: 1rem;
  color: var(--muted);
}

.avatar-title {
  font-size: 1.2rem;
  color: var(--text);
  display: block;
  margin-bottom: 0.6rem;
}

.mini-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.stat {
  padding: 1rem;
}

.stat strong {
  display: block;
  font-size: 1.8rem;
  color: var(--text);
}

.stat span {
  color: var(--muted);
  font-size: 0.9rem;
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.section-head h2 {
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1;
  margin: 0;
  letter-spacing: -0.03em;
}

.section-head p {
  margin: 0;
  color: var(--muted);
  max-width: 560px;
}

.about-grid,
.skills-grid,
.contact-grid,
.education-grid {
  display: grid;
  gap: 1.25rem;
}

.about-grid {
  grid-template-columns: 1.15fr 0.85fr;
}

.panel {
  padding: 1.4rem;
}

.about-text p,
.panel p,
.timeline-item p,
.project-card p,
.contact-card p {
  color: var(--muted);
  margin-top: 0;
}

.panel h3,
.contact-card h3 {
  margin-top: 0;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.2rem;
}

.chip {
  background: rgba(255,255,255,0.06);
  color: var(--text);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 999px;
  padding: 0.55rem 0.9rem;
  font-size: 0.92rem;
}

.education-grid { grid-template-columns: repeat(2, 1fr); }
.skills-grid { grid-template-columns: repeat(3, 1fr); }

.skill-card {
  padding: 1.3rem;
  position: relative;
  overflow: hidden;
}

.skill-card::after {
  content: "";
  position: absolute;
  inset: auto -40px -40px auto;
  width: 120px;
  height: 120px;
  background: radial-gradient(circle, rgba(103,232,249,0.18), transparent 65%);
  border-radius: 50%;
}

.skill-card h3 {
  margin-top: 0;
  font-size: 1.15rem;
}

.skill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.skill-list span {
  font-size: 0.9rem;
  padding: 0.5rem 0.75rem;
  border-radius: 12px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
}

.timeline {
  display: grid;
  gap: 1rem;
}

.timeline-item {
  padding: 1.3rem;
  position: relative;
}

.timeline-meta {
  color: var(--accent);
  font-weight: 700;
  font-size: 0.92rem;
  margin-bottom: 0.45rem;
}

.timeline-item h3 {
  margin: 0 0 0.4rem;
  font-size: 1.16rem;
}

.timeline-item ul,
.project-card ul {
  margin: 0.8rem 0 0;
  padding-left: 1.15rem;
  color: var(--muted);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.2rem;
}

.project-card {
  padding: 1.35rem;
  transition: transform 0.2s ease, border-color 0.2s ease;
  position: relative;
  overflow: hidden;
}

.project-card:hover {
  transform: translateY(-4px);
  border-color: rgba(103,232,249,0.35);
}

.project-top {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.project-top h3 {
  margin: 0;
}

.project-subtitle {
  margin: 0.45rem 0 0;
}

.project-badge {
  padding: 0.45rem 0.7rem;
  border-radius: 999px;
  background: rgba(103,232,249,0.12);
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 700;
  white-space: nowrap;
}

.project-link {
  display: inline-block;
  margin-top: 1rem;
  color: var(--accent);
  font-weight: 700;
}

.contact-grid {
  grid-template-columns: 1.1fr 0.9fr;
  align-items: stretch;
}

.contact-card {
  padding: 1.5rem;
  background: linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.04));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.contact-links {
  display: grid;
  gap: 0.9rem;
  margin-top: 1rem;
}

.contact-link {
  padding: 1rem 1rem;
  border-radius: 16px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.09);
  transition: 0.2s ease;
}

.contact-link:hover {
  background: rgba(255,255,255,0.08);
  transform: translateX(3px);
}

.contact-list {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--muted);
}

footer {
  padding: 2rem 0 3rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.footer-inner {
  width: 100%;
  padding: 0;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 980px) {
  .hero,
  .about-grid,
  .contact-grid,
  .skills-grid,
  .education-grid,
  .projects-grid {
    grid-template-columns: 1fr;
  }

  .hero { min-height: auto; }
}

@media (max-width: 720px) {
  .nav-inner {
    align-items: start;
    flex-direction: column;
  }

  .nav-links { gap: 0.4rem; }
  section { padding: 4.2rem 0; }
  .mini-grid { grid-template-columns: 1fr 1fr; }
  .hero-actions { flex-direction: column; align-items: start; }
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 15px;
  margin-top: 15px;
}

.cert-card {
  text-decoration: none;
  color: inherit;
  border: 1px solid #ddd;
  border-radius: 10px;
  padding: 10px;
  display: block;
  transition: 0.3s;
}

.cert-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.cert-card img {
  width: 100%;
  border-radius: 6px;
  margin-bottom: 8px;
}

.cert-card span {
  font-size: 14px;
  font-weight: 600;
  display: block;
}