:root {
  color-scheme: dark;
  --bg: #071014;
  --bg-soft: #0d1a20;
  --panel: #10222a;
  --panel-strong: #132c35;
  --text: #edf7fa;
  --muted: #a9bdc5;
  --line: rgba(188, 220, 229, 0.18);
  --accent: #38d6a5;
  --accent-strong: #7cf0c8;
  --blue: #4bb3fd;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.34);
  --max-width: 1120px;
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(56, 214, 165, 0.13), transparent 34rem),
    linear-gradient(135deg, rgba(75, 179, 253, 0.08), transparent 30rem),
    var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

body.nav-open {
  overflow: hidden;
}

a {
  color: inherit;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 20;
  background: var(--accent);
  color: #03110d;
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  font-weight: 700;
  transition: top 160ms ease;
}

.skip-link:focus {
  top: 1rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid transparent;
  background: rgba(7, 16, 20, 0.78);
  backdrop-filter: blur(16px);
  transition: border-color 180ms ease, background 180ms ease;
}

.site-header.scrolled {
  border-color: var(--line);
  background: rgba(7, 16, 20, 0.94);
}

.nav {
  width: min(100% - 2rem, var(--max-width));
  min-height: 72px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text);
  text-decoration: none;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(56, 214, 165, 0.45);
  border-radius: var(--radius);
  background: rgba(56, 214, 165, 0.12);
  color: var(--accent-strong);
  font-size: 0.9rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-links a {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 0.78rem;
  border-radius: var(--radius);
  color: var(--muted);
  text-decoration: none;
  font-size: 0.94rem;
  font-weight: 650;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  outline: none;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.nav-toggle span:not(.sr-only) {
  display: block;
  width: 20px;
  height: 2px;
  margin: 4px auto;
  background: currentColor;
  border-radius: 999px;
}

.section {
  width: min(100% - 2rem, var(--max-width));
  margin: 0 auto;
  padding: 6rem 0;
}

.hero {
  min-height: calc(100vh - 72px);
  display: grid;
  align-items: center;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.72fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--accent-strong);
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.08;
  letter-spacing: 0;
}

h1 {
  max-width: 13ch;
  font-size: clamp(3rem, 8vw, 5.7rem);
}

h2 {
  max-width: 18ch;
  font-size: clamp(2rem, 4.5vw, 3.5rem);
}

h3 {
  font-size: 1.18rem;
}

.hero-text,
.lead {
  color: var(--muted);
  font-size: clamp(1.08rem, 2vw, 1.3rem);
}

.hero-text {
  max-width: 42rem;
  margin: 1.5rem 0 0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 1.1rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 800;
}

.button.primary {
  background: var(--accent);
  color: #03110d;
}

.button.primary:hover,
.button.primary:focus-visible {
  background: var(--accent-strong);
  outline: none;
}

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

.button.secondary:hover,
.button.secondary:focus-visible {
  border-color: rgba(124, 240, 200, 0.7);
  outline: none;
}

.hero-panel {
  padding: 1px;
  border-radius: var(--radius);
  background: linear-gradient(145deg, rgba(56, 214, 165, 0.5), rgba(75, 179, 253, 0.18), rgba(255, 255, 255, 0.07));
  box-shadow: var(--shadow);
}

.signal-card {
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.05), transparent),
    var(--panel);
  padding: clamp(1.2rem, 3vw, 1.75rem);
}

.security-visual {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  margin-bottom: 1.25rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  object-fit: cover;
  background: #071014;
}

.panel-label,
.project-kicker {
  margin: 0;
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.signal-list {
  display: grid;
  gap: 0.85rem;
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
}

.signal-list li {
  display: grid;
  gap: 0.2rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.04);
}

.signal-list span,
.contact-card span {
  color: var(--muted);
  font-size: 0.85rem;
}

.signal-list strong {
  color: var(--text);
}

.section-heading {
  display: grid;
  gap: 0.35rem;
  margin-bottom: 2.25rem;
}

.about-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 5rem);
}

.lead {
  margin: 0;
}

.about-details {
  color: var(--muted);
}

.about-details p {
  margin: 0 0 1rem;
}

.band {
  width: 100%;
  max-width: none;
  padding: 6rem max(1rem, calc((100vw - var(--max-width)) / 2));
  border-block: 1px solid var(--line);
  background: rgba(13, 26, 32, 0.68);
}

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

.skill-card,
.cert-card,
.contact-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.04);
}

.skill-card,
.cert-card {
  padding: 1.25rem;
}

.skill-card p,
.cert-card p,
.project-card p,
.resume-content p {
  color: var(--muted);
}

.skill-card p,
.cert-card p {
  margin: 0.75rem 0 0;
}

.project-list {
  display: grid;
  gap: 1rem;
}

.project-card {
  display: grid;
  grid-template-columns: minmax(220px, 0.55fr) minmax(0, 1fr);
  gap: 1.5rem;
  padding: 1.35rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.035);
}

.project-card h3 {
  margin-top: 0.4rem;
}

.project-card p:last-child {
  margin: 0;
}

.resume-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.resume-content p {
  max-width: 42rem;
  margin: 1rem 0 0;
}

.contact-card {
  display: grid;
  gap: 0.35rem;
  min-height: 112px;
  padding: 1.25rem;
  text-decoration: none;
}

.contact-card:hover,
.contact-card:focus-visible {
  border-color: rgba(124, 240, 200, 0.72);
  background: rgba(56, 214, 165, 0.08);
  outline: none;
}

.site-footer {
  width: min(100% - 2rem, var(--max-width));
  margin: 0 auto;
  padding: 2rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  color: var(--accent-strong);
  font-weight: 750;
  text-decoration: none;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 520ms ease, transform 520ms ease;
}

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    scroll-behavior: auto !important;
    transition-duration: 1ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 880px) {
  .nav-toggle {
    display: block;
  }

  .nav-links {
    position: fixed;
    inset: 72px 1rem auto 1rem;
    display: none;
    padding: 0.75rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(7, 16, 20, 0.98);
    box-shadow: var(--shadow);
  }

  .nav-links.open {
    display: grid;
  }

  .nav-links a {
    width: 100%;
    justify-content: center;
  }

  .hero-grid,
  .about-layout,
  .project-card {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 4rem;
  }

  h1 {
    max-width: 11ch;
  }

  .skills-grid,
  .cert-grid,
  .contact-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 620px) {
  .section,
  .band {
    padding-top: 4.5rem;
    padding-bottom: 4.5rem;
  }

  .brand span:last-child {
    display: none;
  }

  h1 {
    font-size: clamp(2.65rem, 15vw, 4rem);
  }

  .hero-actions,
  .resume-section,
  .site-footer {
    align-items: stretch;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .skills-grid,
  .cert-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }
}