:root {
  --bg: #050308;
  --bg-alt: #0b0712;
  --panel: #130c1f;
  --panel-hover: #1c1330;
  --border: #2c1f47;
  --text: #ede9f7;
  --text-dim: #a99cc7;
  --text-faint: #766a95;
  --accent: #b16bff;
  --accent-dim: #8b3ffb;
  --accent-soft: rgba(177, 107, 255, 0.14);
  --warn: #fbbf24;
  --danger: #f87171;
  --font-display: 'Orbitron', 'Segoe UI', sans-serif;
  --font-body: 'Chakra Petch', system-ui, 'Segoe UI', sans-serif;

  font: 16px/1.55 var(--font-body);
  color-scheme: dark;
  color: var(--text);
  background: var(--bg);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
}

img {
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1,
h2,
h3 {
  font-family: var(--font-display);
  letter-spacing: 0.5px;
}

/* Layout helpers */
.section {
  max-width: 1040px;
  margin: 0 auto;
  padding: 88px 24px;
}

.section__title {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 32px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.section__title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 13, 18, 0.7);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.nav--scrolled {
  border-bottom-color: var(--border);
  background: rgba(11, 13, 18, 0.92);
}

.nav__inner {
  max-width: 1040px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__brand {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.nav__brand-dot {
  color: var(--accent);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 22px;
}

.nav__links a {
  font-size: 14px;
  color: var(--text-dim);
  transition: color 0.15s ease;
  white-space: nowrap;
}

.nav__links a:hover {
  color: var(--text);
}

.nav__resume {
  padding: 8px 16px;
  border: 1px solid var(--accent-dim);
  border-radius: 999px;
  color: var(--accent) !important;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.nav__resume:hover {
  background: var(--accent-soft);
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav__toggle span {
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
}

/* Hero */
.hero {
  position: relative;
  max-width: 1040px;
  margin: 0 auto;
  padding: 120px 24px 96px;
  overflow: hidden;
}

.hero__glow {
  position: absolute;
  top: -120px;
  right: -80px;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(177, 107, 255, 0.28), transparent 70%);
  pointer-events: none;
  z-index: -1;
}

.hero__eyebrow {
  font-family: var(--font-display);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.hero__name {
  font-size: clamp(34px, 6vw, 58px);
  font-weight: 900;
  letter-spacing: 1px;
  text-transform: uppercase;
  line-height: 1.1;
  margin-bottom: 20px;
}

.hero__tagline {
  max-width: 620px;
  font-size: 18px;
  color: var(--text-dim);
  margin-bottom: 36px;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.btn {
  padding: 13px 26px;
  border-radius: 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 1px;
  text-transform: uppercase;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
  display: inline-block;
}

.btn--primary {
  background: var(--accent);
  color: #0a0510;
}

.btn--primary:hover {
  background: var(--accent-dim);
  transform: translateY(-1px);
}

.btn--ghost {
  border: 1px solid var(--border);
  color: var(--text);
}

.btn--ghost:hover {
  border-color: var(--accent-dim);
  color: var(--accent);
}

.hero__social {
  display: flex;
  gap: 24px;
}

.hero__social a {
  font-size: 14px;
  color: var(--text-dim);
  font-weight: 600;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.hero__social a:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* About */
.about__bio {
  max-width: 720px;
  font-size: 17px;
  color: var(--text-dim);
}

/* Skills */
.skills__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.skills__card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 22px;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.skills__card:hover {
  border-color: var(--accent-dim);
  transform: translateY(-2px);
}

.skills__card h3 {
  font-size: 15px;
  margin-bottom: 14px;
  color: var(--text);
}

.skills__card li {
  font-size: 14px;
  color: var(--text-dim);
  padding: 5px 0;
  border-top: 1px solid var(--border);
}

.skills__card li:first-child {
  border-top: none;
}

/* Timeline / Experience */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.timeline__item {
  position: relative;
  padding-left: 28px;
  border-left: 2px solid var(--border);
}

.timeline__marker {
  position: absolute;
  left: -7px;
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.timeline__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 4px;
}

.timeline__head h3 {
  font-size: 19px;
}

.timeline__period {
  font-size: 13px;
  color: var(--text-faint);
  font-weight: 600;
}

.timeline__sub {
  color: var(--accent);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 14px;
}

.timeline__content ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.timeline__content li {
  color: var(--text-dim);
  font-size: 15px;
  padding-left: 18px;
  position: relative;
}

.timeline__content li::before {
  content: '›';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

/* Projects */
.projects__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.project-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 26px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.project-card:hover {
  border-color: var(--accent-dim);
  transform: translateY(-3px);
}

.project-card h3 {
  font-size: 18px;
}

.project-card p {
  color: var(--text-dim);
  font-size: 14.5px;
}

.project-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.project-card__tags span {
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 4px 10px;
  border-radius: 999px;
}

.project-card__links {
  display: flex;
  gap: 18px;
  margin-top: auto;
  padding-top: 6px;
}

.project-card__links a {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--text-dim);
  transition: color 0.15s ease;
}

.project-card__links a:hover {
  color: var(--accent);
}

/* Certifications */
.certs__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}

.cert-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 22px;
}

.cert-card__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 8px;
}

.cert-card__head h3 {
  font-size: 15.5px;
}

.cert-card p {
  color: var(--text-dim);
  font-size: 13.5px;
}

.cert-card__status {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  padding: 4px 9px;
  border-radius: 999px;
  white-space: nowrap;
}

.cert-card__status--completed {
  background: rgba(177, 107, 255, 0.15);
  color: var(--accent);
}

.cert-card__status--in-progress {
  background: rgba(251, 191, 36, 0.15);
  color: var(--warn);
}

.cert-card__status--planned {
  background: rgba(148, 163, 184, 0.15);
  color: var(--text-dim);
}

/* Contact */
.contact__lead {
  font-size: 17px;
  color: var(--text-dim);
  max-width: 560px;
  margin-bottom: 32px;
}

.contact__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}

.contact__item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px 20px;
  font-weight: 600;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.contact__item:hover {
  border-color: var(--accent-dim);
  transform: translateY(-2px);
}

.contact__item--accent {
  background: var(--accent-soft);
  border-color: var(--accent-dim);
}

.contact__item--accent .contact__label {
  color: var(--accent);
}

.contact__label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-faint);
  font-weight: 700;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding: 28px 24px;
  text-align: center;
}

.footer p {
  font-size: 13px;
  color: var(--text-faint);
}

/* Responsive */
@media (max-width: 880px) {
  .nav__links {
    position: fixed;
    inset: 62px 0 auto 0;
    background: var(--bg-alt);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 8px 24px 20px;
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s ease, transform 0.15s ease;
  }

  .nav__links--open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav__links a {
    width: 100%;
    padding: 12px 0;
    border-top: 1px solid var(--border);
  }

  .nav__resume {
    margin-top: 8px;
    text-align: center;
  }

  .nav__toggle {
    display: flex;
  }

  .hero {
    padding: 90px 20px 72px;
  }

  .section {
    padding: 64px 20px;
  }
}

/* ---------- Extras ---------- */
.progress { position: fixed; top: 0; left: 0; height: 3px; width: 0; background: linear-gradient(90deg, var(--accent-dim), var(--accent)); z-index: 100; }
.cursor { animation: blink 1s steps(2) infinite; color: var(--accent); }
@keyframes blink { 50% { opacity: 0; } }
.nav__links a.active { color: var(--accent); }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } html { scroll-behavior: auto; } }

.filters { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 24px; }
.filters button { font: 600 12px var(--font-body); letter-spacing: .5px; color: var(--text-dim); background: none; border: 1px solid var(--border); border-radius: 999px; padding: 6px 14px; cursor: pointer; transition: all .15s ease; }
.filters button:hover { border-color: var(--accent-dim); color: var(--text); }
.filters button.active { background: var(--accent); border-color: var(--accent); color: #0a0510; }
.project-card.hidden { display: none; }

.project-card { padding: 0; overflow: hidden; gap: 0; }
.project-card__body { padding: 22px 26px 26px; display: flex; flex-direction: column; gap: 14px; flex: 1; }
.project-card__media { position: relative; display: block; width: 100%; aspect-ratio: 16 / 9; padding: 0; border: 0; border-bottom: 1px solid var(--border); background: linear-gradient(135deg, #1c1330, #0b0712); cursor: zoom-in; overflow: hidden; color: var(--text); }
.project-card__media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.project-card__media:hover img { transform: scale(1.05); }
.project-card__placeholder { position: absolute; inset: 0; display: none; flex-direction: column; align-items: center; justify-content: center; gap: 6px; padding: 16px; text-align: center; font-family: var(--font-display); font-size: 15px; color: var(--accent); }
.project-card__placeholder small { font-family: var(--font-body); font-size: 12px; color: var(--text-faint); }
.project-card__media.no-image { cursor: default; }
.project-card__media.no-image .project-card__placeholder { display: flex; }
.project-card__media.no-image img, .project-card__media.no-image .project-card__zoom { display: none; }
.project-card__zoom { position: absolute; right: 10px; bottom: 10px; font-size: 12px; font-weight: 700; padding: 5px 11px; border-radius: 999px; background: rgba(5,3,8,.8); border: 1px solid var(--accent-dim); opacity: 0; transition: opacity .2s ease; }
.project-card__media:hover .project-card__zoom { opacity: 1; }

.lightbox { position: fixed; inset: 0; z-index: 200; background: rgba(5,3,8,.92); display: flex; align-items: center; justify-content: center; gap: 12px; padding: 24px; }
.lightbox[hidden] { display: none; }
.lightbox__fig { margin: 0; max-width: min(1000px, 80vw); text-align: center; }
.lightbox__fig img { max-width: 100%; max-height: 78vh; border-radius: 10px; border: 1px solid var(--border); }
.lightbox__fig figcaption { margin-top: 12px; color: var(--text-dim); font-size: 14px; }
.lightbox__close, .lightbox__nav { background: var(--panel); color: var(--text); border: 1px solid var(--border); border-radius: 50%; width: 44px; height: 44px; font-size: 26px; line-height: 1; cursor: pointer; flex: none; }
.lightbox__close:hover, .lightbox__nav:hover { border-color: var(--accent); color: var(--accent); }
.lightbox__close { position: absolute; top: 20px; right: 20px; }
.lightbox__nav[hidden] { display: none; }

.to-top { position: fixed; right: 20px; bottom: 20px; width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--accent-dim); background: var(--panel); color: var(--accent); font-size: 20px; cursor: pointer; opacity: 0; pointer-events: none; transition: opacity .2s ease, transform .2s ease; z-index: 60; }
.to-top.show { opacity: 1; pointer-events: auto; }
.to-top:hover { transform: translateY(-2px); background: var(--accent-soft); }
@media (max-width: 880px) { .lightbox__nav { width: 36px; height: 36px; } .lightbox__fig { max-width: 70vw; } }