:root {
  --bg-main: #020410;
  --bg-elevated: rgba(9, 11, 32, 0.95);
  --bg-elevated-soft: rgba(11, 15, 40, 0.9);
  --accent-primary: #00f5ff;
  --accent-secondary: #ff00e6;
  --accent-soft: rgba(0, 245, 255, 0.18);
  --text-main: #f5f7ff;
  --text-muted: #9da4c6;
  --border-strong: rgba(0, 245, 255, 0.6);
  --border-soft: rgba(0, 245, 255, 0.18);
  --shadow-strong: 0 0 35px rgba(0, 245, 255, 0.25);
  --shadow-soft: 0 0 25px rgba(255, 0, 230, 0.25);
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-pill: 999px;
  --transition-fast: 180ms ease-out;
  --transition-med: 240ms ease-out;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, #161b3b 0, #020410 45%, #000 100%);
  color: var(--text-main);
  -webkit-font-smoothing: antialiased;
}

.background-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(
      rgba(0, 245, 255, 0.06) 1px,
      transparent 1px
    ),
    linear-gradient(
      90deg,
      rgba(0, 245, 255, 0.06) 1px,
      transparent 1px
    );
  background-size: 60px 60px;
  opacity: 0.42;
  mix-blend-mode: screen;
  z-index: -1;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.4rem 6vw;
  backdrop-filter: blur(16px);
  background: linear-gradient(
    to bottom,
    rgba(2, 4, 16, 0.96),
    rgba(2, 4, 16, 0.75),
    transparent
  );
}

.logo {
  font-family: "Orbitron", system-ui, sans-serif;
  font-weight: 700;
  letter-spacing: 0.16em;
  font-size: 0.9rem;
  text-transform: uppercase;
  color: var(--accent-primary);
}

.logo span {
  color: var(--accent-secondary);
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-links {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 1.75rem;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.4rem;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-secondary), var(--accent-primary));
  transition: width var(--transition-med);
}

.nav-links a:hover {
  color: var(--accent-primary);
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-soft);
  border-radius: 999px;
  color: var(--text-main);
  padding: 0.35rem 0.85rem;
  cursor: pointer;
}

main {
  padding: 4rem 6vw 4.5rem;
  max-width: 1120px;
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 2.2fr);
  gap: 2.75rem;
  align-items: stretch;
  margin-bottom: 4.5rem;
}

.hero-content {
  position: relative;
  padding-right: 1.5rem;
}

.hero-tagline {
  font-family: "Orbitron", system-ui, sans-serif;
  font-size: 0.8rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent-primary);
  margin: 0 0 0.8rem;
}

.hero h1 {
  font-family: "Orbitron", system-ui, sans-serif;
  font-size: clamp(2.7rem, 3.6vw, 3.2rem);
  margin: 0 0 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.hero h1 span {
  display: inline-block;
  background: linear-gradient(120deg, var(--accent-primary), var(--accent-secondary));
  -webkit-background-clip: text;
  color: transparent;
}

.hero-subtitle {
  margin: 0 0 1.4rem;
  color: var(--text-muted);
  max-width: 36rem;
  line-height: 1.6;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-bottom: 1.6rem;
  font-size: 0.9rem;
}

.hero-meta span {
  padding: 0.3rem 0.85rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-soft);
  background: radial-gradient(circle at top left, rgba(0, 245, 255, 0.12), transparent 55%);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-bottom: 1.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.5rem;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition:
    background var(--transition-med),
    border-color var(--transition-med),
    transform var(--transition-fast),
    box-shadow var(--transition-med),
    color var(--transition-fast);
}

.btn-primary {
  background: radial-gradient(circle at top left, var(--accent-secondary), var(--accent-primary));
  color: #020410;
  box-shadow: var(--shadow-strong);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 42px rgba(0, 245, 255, 0.4);
}

.btn-ghost {
  border-color: var(--border-soft);
  color: var(--accent-primary);
  background: rgba(2, 4, 16, 0.6);
}

.btn-ghost:hover {
  border-color: var(--border-strong);
  background: rgba(3, 10, 32, 0.95);
  box-shadow: var(--shadow-soft);
}

.hero-contact {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.9rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.hero-contact a {
  color: var(--text-main);
  text-decoration: none;
  border-bottom: 1px dotted rgba(0, 245, 255, 0.4);
  padding-bottom: 1px;
}

.hero-contact a:hover {
  color: var(--accent-primary);
}

.hero-card {
  position: relative;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(0, 245, 255, 0.3);
  background: radial-gradient(circle at top, rgba(0, 245, 255, 0.2), transparent 55%),
    linear-gradient(145deg, rgba(9, 11, 32, 0.98), rgba(12, 6, 32, 0.98));
  box-shadow:
    0 0 55px rgba(0, 245, 255, 0.3),
    0 0 25px rgba(255, 0, 230, 0.3);
  overflow: hidden;
}

.hero-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: conic-gradient(
    from 140deg,
    rgba(0, 245, 255, 0.08),
    transparent,
    rgba(255, 0, 230, 0.08),
    transparent,
    rgba(0, 245, 255, 0.08)
  );
  mix-blend-mode: screen;
  opacity: 0.6;
  pointer-events: none;
}

.hero-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.85rem 1.1rem;
  border-bottom: 1px solid rgba(0, 245, 255, 0.25);
  font-family: "Orbitron", system-ui, sans-serif;
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  background: linear-gradient(
    90deg,
    rgba(0, 245, 255, 0.16),
    rgba(255, 0, 230, 0.14)
  );
}

.status-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #18ff8b;
  box-shadow: 0 0 12px rgba(24, 255, 139, 0.9);
}

.hero-card-body {
  position: relative;
  padding: 1.3rem 1.4rem 1.5rem;
  z-index: 1;
}

.hero-card-body h2 {
  margin: 0 0 0.25rem;
  font-size: 1.15rem;
}

.hero-card-company {
  margin: 0 0 0.9rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.hero-card-body ul {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 0.9rem;
}

.hero-card-body li {
  position: relative;
  padding-left: 1.1rem;
  margin-bottom: 0.4rem;
  color: #d0d5ff;
}

.hero-card-body li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 7px;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-secondary), var(--accent-primary));
}

.section {
  margin-bottom: 3.7rem;
}

.section-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 2.2fr);
  gap: 2.5rem;
  align-items: flex-start;
}

.section-header h2 {
  font-family: "Orbitron", system-ui, sans-serif;
  font-size: 1.45rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  margin: 0 0 0.75rem;
}

.section-header p {
  margin: 0;
  color: var(--text-muted);
  line-height: 1.6;
}

.timeline {
  border-left: 1px solid rgba(0, 245, 255, 0.35);
  padding-left: 1.6rem;
  position: relative;
}

.timeline::before {
  content: "";
  position: absolute;
  left: -2px;
  top: 0;
  bottom: 0;
  background: linear-gradient(
    to bottom,
    rgba(0, 245, 255, 0.5),
    rgba(255, 0, 230, 0.35)
  );
  width: 2px;
}

.timeline-item {
  margin-bottom: 2.1rem;
  position: relative;
}

.timeline-dot {
  position: absolute;
  left: -1.77rem;
  top: 0.3rem;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  border: 2px solid #020410;
  background: radial-gradient(circle, var(--accent-primary), var(--accent-secondary));
  box-shadow: 0 0 18px rgba(0, 245, 255, 0.7);
}

.timeline-content {
  padding: 1.1rem 1.1rem 1.2rem;
  border-radius: var(--radius-md);
  background: var(--bg-elevated-soft);
  border: 1px solid var(--border-soft);
  box-shadow: 0 0 32px rgba(0, 0, 0, 0.5);
}

.timeline-content header {
  margin-bottom: 0.4rem;
}

.timeline-content h3 {
  margin: 0 0 0.1rem;
  font-size: 1.05rem;
}

.timeline-content .company {
  display: block;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.timeline-content .period {
  display: inline-flex;
  margin-top: 0.25rem;
  font-size: 0.8rem;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(0, 245, 255, 0.25);
  color: var(--accent-primary);
}

.timeline-summary {
  margin: 0.7rem 0 0.6rem;
  color: var(--text-muted);
  font-size: 0.93rem;
}

.timeline-list {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.9rem;
}

.timeline-list li {
  margin-bottom: 0.35rem;
  position: relative;
  padding-left: 0.9rem;
}

.timeline-list li::before {
  content: "▹";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--accent-primary);
  font-size: 0.75rem;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.6rem;
}

.card {
  border-radius: var(--radius-md);
  border: 1px solid var(--border-soft);
  background: var(--bg-elevated-soft);
  padding: 1.2rem 1.3rem 1.25rem;
  box-shadow: 0 0 18px rgba(0, 0, 0, 0.6);
  position: relative;
  overflow: hidden;
  transition:
    transform var(--transition-fast),
    box-shadow var(--transition-med),
    border-color var(--transition-med),
    background var(--transition-med);
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle at top left,
    rgba(0, 245, 255, 0.16),
    transparent 55%
  );
  opacity: 0;
  transition: opacity var(--transition-med);
  pointer-events: none;
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 245, 255, 0.6);
  box-shadow:
    0 0 30px rgba(0, 245, 255, 0.25),
    0 0 22px rgba(255, 0, 230, 0.35);
  background: radial-gradient(circle at top, rgba(0, 245, 255, 0.12), transparent 55%),
    var(--bg-elevated);
}

.card:hover::before {
  opacity: 1;
}

.card-header h3 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(0, 245, 255, 0.35);
  padding: 0.2rem 0.7rem;
  font-size: 0.75rem;
  color: var(--accent-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.card p {
  margin: 0.7rem 0 0.7rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.card-list {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.88rem;
}

.card-list li {
  margin-bottom: 0.3rem;
  position: relative;
  padding-left: 0.9rem;
}

.card-list li::before {
  content: "▹";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--accent-secondary);
  font-size: 0.75rem;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.5rem;
}

.skills-column {
  border-radius: var(--radius-md);
  border: 1px dashed rgba(0, 245, 255, 0.35);
  padding: 1rem 1.1rem;
  background: rgba(8, 10, 30, 0.92);
}

.skills-column h3 {
  margin: 0 0 0.5rem;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-family: "Orbitron", system-ui, sans-serif;
}

.skills-column ul {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.88rem;
}

.skills-column li {
  margin-bottom: 0.25rem;
  color: #d0d5ff;
}

.contact-card {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-soft);
  background: radial-gradient(circle at top left, rgba(0, 245, 255, 0.14), transparent 55%),
    var(--bg-elevated);
  padding: 1.4rem 1.5rem 1.6rem;
  box-shadow: 0 0 26px rgba(0, 0, 0, 0.6);
}

.contact-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.4rem 0;
  border-bottom: 1px dashed rgba(0, 245, 255, 0.2);
  font-size: 0.92rem;
}

.contact-row:last-of-type {
  border-bottom: none;
  margin-bottom: 0.75rem;
}

.contact-row span:first-child {
  color: var(--text-muted);
}

.contact-row a {
  color: var(--accent-primary);
  text-decoration: none;
}

.contact-row a:hover {
  color: var(--accent-secondary);
}

.contact-note {
  margin: 0.6rem 0 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.site-footer {
  max-width: 1120px;
  margin: 0 auto 1.4rem;
  padding: 0 6vw;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  justify-content: center;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-divider {
  opacity: 0.5;
}

@media (max-width: 960px) {
  .hero {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-content {
    padding-right: 0;
  }

  .hero-card {
    max-width: 380px;
    margin-inline: auto;
  }

  .section-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .cards-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .skills-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .site-header {
    padding-inline: 1.4rem;
  }

  main {
    padding-inline: 1.4rem;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-links {
    position: absolute;
    right: 1.4rem;
    top: 3.3rem;
    flex-direction: column;
    align-items: flex-start;
    background: rgba(2, 4, 16, 0.98);
    padding: 0.85rem 1rem;
    border-radius: var(--radius-md);
    border: 1px solid rgba(0, 245, 255, 0.3);
    box-shadow: 0 14px 40px rgba(0, 0, 0, 0.8);
    transform-origin: top right;
    transform: scale(0.96);
    opacity: 0;
    pointer-events: none;
    transition:
      opacity var(--transition-med),
      transform var(--transition-med);
  }

  .nav-links.nav-open {
    opacity: 1;
    pointer-events: auto;
    transform: scale(1);
  }

  .cards-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .skills-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .timeline {
    padding-left: 1.1rem;
  }

  .timeline-dot {
    left: -1.4rem;
  }
}