:root {
  --bg: #06121f;
  --surface: rgba(255,255,255,0.08);
  --surface-strong: rgba(255,255,255,0.14);
  --text: #f4f7fb;
  --muted: #aab7ca;
  --accent: #7cc9ff;
  --accent-2: #8b7cff;
  --border: rgba(255,255,255,0.16);
}

* { box-sizing: border-box; }
img { max-width: 100%; }
body {
  margin: 0;
  font-family: 'Segoe UI', Inter, Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(124,201,255,0.18), transparent 28%),
    radial-gradient(circle at bottom right, rgba(139,124,255,0.18), transparent 32%),
    linear-gradient(135deg, #07111f 0%, #0e1e33 45%, #14213d 100%);
  min-height: 100vh;
}
a { color: inherit; text-decoration: none; }
.container { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }

.page-shell {
  position: relative;
  overflow: hidden;
}
.page-shell::before,
.page-shell::after {
  content: "";
  position: fixed;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  filter: blur(80px);
  opacity: .35;
  pointer-events: none;
  z-index: 0;
}
.page-shell::before {
  top: -100px;
  left: -80px;
  background: rgba(124,201,255,.35);
}
.page-shell::after {
  right: -90px;
  bottom: -120px;
  background: rgba(139,124,255,.28);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(16px);
  background: rgba(5,13,24,0.5);
  border-bottom: 1px solid var(--border);
}
.nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
}
.brand {
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  font-size: .95rem;
}
.nav-links {
  display: flex;
  gap: 20px;
  color: var(--muted);
}
.nav-links a:hover { color: var(--text); }

main {
  position: relative;
  z-index: 1;
  padding: 28px 0 56px;
}

/* ── Hero ── */
.hero {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  padding: 56px 0 32px;
  align-items: center;
}
.hero-copy { align-self: center; }

/* Status badge */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(52, 211, 153, .1);
  border: 1px solid rgba(52, 211, 153, .3);
  color: #34d399;
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .06em;
}
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #34d399;
  box-shadow: 0 0 0 0 rgba(52,211,153,.5);
  animation: pulse-dot 1.8s ease infinite;
}
@keyframes pulse-dot {
  0%   { box-shadow: 0 0 0 0 rgba(52,211,153,.5); }
  70%  { box-shadow: 0 0 0 7px rgba(52,211,153,0); }
  100% { box-shadow: 0 0 0 0 rgba(52,211,153,0); }
}

/* Headline */
.hero h1 {
  font-size: clamp(2rem, 4vw, 3.1rem);
  line-height: 1.12;
  margin: 0 0 16px;
  letter-spacing: -.02em;
}
.hero-gradient {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.intro {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--muted);
  max-width: 560px;
  margin-bottom: 0;
}

/* CTA buttons */
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 26px 0 24px;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 11px 20px;
  border-radius: 999px;
  font-size: .95rem;
  font-weight: 600;
  transition: transform .18s ease, box-shadow .18s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #07111f;
  box-shadow: 0 4px 18px rgba(124,201,255,.25);
}
.btn-primary:hover { box-shadow: 0 8px 24px rgba(124,201,255,.38); }
.btn-secondary {
  background: rgba(255,255,255,.08);
  border: 1px solid var(--border);
  color: var(--text);
}
.btn-ghost {
  background: transparent;
  border: none;
  color: var(--accent);
  padding-left: 4px;
  padding-right: 4px;
  font-weight: 600;
}
.btn-ghost:hover { color: var(--text); }

/* Skill chips */
.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.chip {
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  color: var(--muted);
  font-size: .82rem;
}

/* Profile card */
.hero-card {
  background: linear-gradient(160deg, rgba(255,255,255,.11) 0%, rgba(255,255,255,.05) 100%);
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 28px;
  padding: 28px 24px 24px;
  box-shadow: 0 24px 56px rgba(0,0,0,.28);
  backdrop-filter: blur(20px);
  align-self: center;
  display: flex;
  justify-content: center;
}
.hero-card-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  width: 100%;
}
.hero-photo-wrap {
  position: relative;
  width: 148px;
  height: 148px;
  margin-bottom: 16px;
}
.hero-photo-wrap::before {
  content: "";
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  z-index: 0;
}
.hero-photo {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  border: 3px solid #0e1e33;
  display: block;
}
.hero-card-text { width: 100%; }
.hero-card h2 { margin: 0 0 4px; font-size: 1.2rem; font-weight: 700; }
.card-role { margin: 0 0 14px; color: var(--accent); font-weight: 600; font-size: .92rem; }
.hero-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px;
  margin-bottom: 14px;
}
.hero-tag {
  font-size: .75rem;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(124,201,255,.1);
  border: 1px solid rgba(124,201,255,.2);
  color: var(--accent);
}
.highlights {
  margin: 0;
  padding-left: 0;
  color: var(--muted);
  display: grid;
  gap: 7px;
  list-style: none;
  font-size: .9rem;
  text-align: left;
}
.highlights li::before {
  content: "•";
  color: var(--accent);
  margin-right: 8px;
}
.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}
.certificate-card {
  background: rgba(255,255,255,.08);
  border: 1px solid var(--border);
  border-radius: 18px;
  overflow: hidden;
  backdrop-filter: blur(10px);
}
.certificate-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
}
.certificate-card h4 {
  margin: 10px 12px 8px;
  font-size: .95rem;
  line-height: 1.4;
}
.certificate-card .card-link {
  display: inline-block;
  margin: 0 12px 12px;
  color: var(--accent);
  font-size: .9rem;
  font-weight: 600;
}
.certificate-card.featured-cert {
  border-color: rgba(124, 201, 255, 0.45);
  box-shadow: 0 12px 28px rgba(0,0,0,.16);
}
.cert-links {
  margin: 0 0 16px;
  padding: 16px 18px;
  border-radius: 16px;
  background: rgba(255,255,255,.07);
  border: 1px solid var(--border);
}
.cert-links h4 {
  margin: 0 0 8px;
}
.cert-links ul {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  display: grid;
  gap: 6px;
}
.cert-links a { color: var(--accent); }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin: 18px 0 8px;
}
.stat-card, .info-card {
  background: rgba(255,255,255,.08);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 18px;
  backdrop-filter: blur(10px);
  transition: transform .25s ease, box-shadow .25s ease;
}
.stat-card:hover, .info-card:hover, .certificate-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 28px rgba(0,0,0,.16);
}
.stat-card strong {
  display: block;
  font-size: 1.3rem;
  margin-bottom: 6px;
}
.stat-card span, .section-heading p, .info-card p { color: var(--muted); line-height: 1.6; }
.section { padding: 24px 0 8px; }
.section-heading { margin-bottom: 14px; }
.section-heading h3 { margin: 0 0 6px; font-size: 1.2rem; }
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

/* ── Animations ── */
@keyframes fade-up {
  from { opacity: 0; transform: translateY(32px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes slide-in-right {
  from { opacity: 0; transform: translateX(48px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* Topbar slides down */
.topbar { animation: fade-in .5s ease both; }

/* Hero — staggered load */
.status-badge { animation: fade-up .65s cubic-bezier(.22,1,.36,1) .05s both; }
.hero h1      { animation: fade-up .75s cubic-bezier(.22,1,.36,1) .15s both; }
.intro        { animation: fade-up .7s  cubic-bezier(.22,1,.36,1) .28s both; }
.actions      { animation: fade-up .65s cubic-bezier(.22,1,.36,1) .38s both; }
.chip-row     { animation: fade-up .65s cubic-bezier(.22,1,.36,1) .48s both; }
.hero-card    { animation: slide-in-right .85s cubic-bezier(.22,1,.36,1) .22s both; }

/* Scroll-reveal base state */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .65s cubic-bezier(.22,1,.36,1),
              transform .65s cubic-bezier(.22,1,.36,1);
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (max-width: 1000px) {
  .card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
.analytics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}
.analytics-card {
  background: rgba(255,255,255,.08);
  border: 1px solid var(--border);
  border-radius: 18px;
  overflow: hidden;
  backdrop-filter: blur(10px);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.analytics-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 32px rgba(0,0,0,.2);
  border-color: rgba(124, 201, 255, 0.45);
}
.analytics-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  display: block;
}
.analytics-card-body {
  padding: 14px 14px 16px;
}
.analytics-card h4 {
  margin: 0 0 6px;
  font-size: 1rem;
}
.analytics-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}
.info-card h4 { margin: 0 0 8px; font-size: 1rem; }
.info-card-icon {
  font-size: 1.6rem;
  margin-bottom: 10px;
  line-height: 1;
}
.info-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
}
.info-card-tags span {
  font-size: .75rem;
  padding: 3px 10px;
  border-radius: 999px;
  background: rgba(124,201,255,.08);
  border: 1px solid rgba(124,201,255,.18);
  color: var(--accent);
}

/* ── Featured Projects ── */
.featured-projects-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}
.featured-project-card {
  background: rgba(255,255,255,.08);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  backdrop-filter: blur(10px);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
  display: flex;
  flex-direction: column;
}
.featured-project-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 18px 36px rgba(0,0,0,.22);
  border-color: rgba(124, 201, 255, 0.42);
}
.fp-images {
  width: 100%;
  overflow: hidden;
  line-height: 0;
}
.fp-images img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
  cursor: zoom-in;
  transition: transform .3s ease;
}
.fp-images img:hover { transform: scale(1.03); }
.fp-multi {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3px;
}
.fp-multi img:first-child {
  grid-column: 1 / -1;
  height: 170px;
}
.fp-multi img:not(:first-child) {
  height: 120px;
}
.fp-body {
  padding: 16px 18px 18px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.fp-body h4 {
  margin: 0 0 8px;
  font-size: 1.02rem;
  font-weight: 700;
}
.fp-body p {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: .92rem;
  line-height: 1.6;
  flex: 1;
}
.fp-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.fp-tags span {
  font-size: .75rem;
  padding: 3px 10px;
  border-radius: 999px;
  background: rgba(139,124,255,.1);
  border: 1px solid rgba(139,124,255,.22);
  color: var(--accent-2);
}
.fp-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-top: 12px;
  font-size: .88rem;
  font-weight: 600;
  color: var(--accent);
  border: 1px solid rgba(124,201,255,.25);
  background: rgba(124,201,255,.07);
  padding: 6px 14px;
  border-radius: 999px;
  transition: background .18s ease, border-color .18s ease;
}
.fp-link:hover {
  background: rgba(124,201,255,.16);
  border-color: rgba(124,201,255,.5);
  color: var(--accent);
}

.sample-projects-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}
.sample-project-card {
  background: rgba(255,255,255,.08);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 16px;
  backdrop-filter: blur(10px);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.sample-project-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 16px 32px rgba(0,0,0,.2);
  border-color: rgba(124, 201, 255, 0.45);
}
.sample-project-card h4 {
  margin: 0 0 12px;
  font-size: 1.02rem;
}
.project-image-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}
.project-image-grid img {
  width: 100%;
  height: 150px;
  object-fit: cover;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.16);
}

/* ── Lightbox ── */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(4, 10, 20, .92);
  backdrop-filter: blur(12px);
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 16px;
}
.lightbox.is-open {
  display: flex;
}
.lb-stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: min(90vw, 1100px);
  max-height: 90vh;
}
.lb-stage img {
  max-width: 100%;
  max-height: calc(90vh - 48px);
  object-fit: contain;
  border-radius: 16px;
  box-shadow: 0 32px 80px rgba(0,0,0,.6);
  opacity: 0;
  transform: scale(.94);
  transition: opacity .22s ease, transform .22s ease;
}
.lb-stage img.lb-zoom-in {
  opacity: 1;
  transform: scale(1);
}
.lb-caption {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: .9rem;
  text-align: center;
}
.lb-close {
  position: fixed;
  top: 18px;
  right: 22px;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.2);
  color: var(--text);
  font-size: 1.6rem;
  line-height: 1;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .18s ease;
  z-index: 1001;
}
.lb-close:hover { background: rgba(255,255,255,.2); }
.lb-arrow {
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.16);
  color: var(--text);
  font-size: 1.4rem;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background .18s ease, transform .18s ease;
}
.lb-arrow:hover { background: rgba(255,255,255,.18); transform: scale(1.1); }

/* ── Hamburger button ── */
.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  width: 40px;
  height: 40px;
  border-radius: 8px;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 0;
  flex-shrink: 0;
  z-index: 20;
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform .22s ease, opacity .22s ease;
}
.nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Tablet ≤ 900px ── */
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    padding-top: 32px;
    gap: 28px;
  }
  .hero-card { max-width: 380px; margin: 0 auto; width: 100%; }
  .featured-projects-grid { grid-template-columns: 1fr; }
  .sample-projects-grid   { grid-template-columns: 1fr; }
}

/* ── Mobile nav ≤ 768px ── */
@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .nav-bar    { flex-wrap: wrap; gap: 0; }
  .nav-links {
    display: none;
    flex-basis: 100%;
    flex-direction: column;
    gap: 0;
    border-top: 1px solid var(--border);
    padding: 4px 0 8px;
    margin-top: 4px;
  }
  .nav-links.is-open { display: flex; }
  .nav-links a {
    padding: 11px 0;
    border-bottom: 1px solid rgba(255,255,255,.05);
    color: var(--muted);
    font-size: .95rem;
  }
  .nav-links a:last-child { border-bottom: none; }
  .nav-links a:hover { color: var(--text); }
  .stats-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
  .card-grid  { grid-template-columns: 1fr; }
}

/* ── Small mobile ≤ 560px ── */
@media (max-width: 560px) {
  .lb-arrow { display: none; }
  .lb-stage img { border-radius: 10px; }
  .hero-card  { padding: 20px; }
  .stats-grid { grid-template-columns: 1fr; }
  .project-image-grid { grid-template-columns: 1fr; }
  .chip { font-size: .78rem; padding: 4px 10px; }
  .actions { flex-wrap: wrap; }
  main { padding-bottom: 40px; }
}

/* ── Extra small ≤ 400px ── */
@media (max-width: 400px) {
  .container  { width: calc(100% - 20px); }
  .nav-bar    { padding: 12px 0; }
  .hero       { padding-top: 16px; gap: 20px; }
  .hero-card  { padding: 14px; }
  .btn        { padding: 10px 16px; font-size: .9rem; }
  .cert-grid  { grid-template-columns: 1fr; }
  .analytics-grid { grid-template-columns: 1fr; }
  .fp-multi   { grid-template-columns: 1fr; }
  .fp-multi img:first-child { height: 160px; }
}