:root {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --content-max: 1040px;
  --page-gutter: clamp(18px, 4vw, 56px);
  --section-inline-padding: max(var(--page-gutter), calc((100vw - var(--content-max)) / 2));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

body {
  margin: 0;
  min-width: 320px;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px var(--section-inline-padding);
  background: var(--bg-strong);
  background: color-mix(in srgb, var(--bg-strong) 92%, transparent);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(14px);
  overflow: hidden;
}

.brand {
  color: var(--text-strong);
  font-weight: 800;
  text-decoration: none;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
  max-width: 100%;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: flex-end;
  color: var(--muted);
  font-size: 0.95rem;
  min-width: 0;
  max-width: 100%;
}

nav a {
  border-radius: 999px;
  padding: 6px 9px;
  text-decoration: none;
  transition:
    background-color 160ms ease,
    color 160ms ease;
}

nav a:hover,
nav a:focus-visible,
nav a.is-active {
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  color: var(--accent);
}

.theme-toggle {
  display: inline-grid;
  width: 38px;
  height: 38px;
  place-items: center;
  flex: 0 0 auto;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: var(--panel);
  color: var(--text-strong);
  cursor: pointer;
  font: inherit;
  font-size: 1.05rem;
  line-height: 1;
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
  outline: none;
}

.reveal-item {
  --reveal-delay: 0ms;
}

.js .reveal-item {
  opacity: 0;
  transform: translate3d(0, 18px, 0);
  transition:
    opacity 520ms ease,
    transform 520ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease,
    color 160ms ease,
    background-color 160ms ease;
  transition-delay: var(--reveal-delay);
}

.js .reveal-item.is-visible {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

main {
  overflow: hidden;
}

.hero,
.test-hero,
.band,
.ai-portfolio,
.skills,
.archive {
  position: relative;
  width: 100%;
  max-width: 100vw;
  padding: clamp(56px, 8vw, 112px) var(--section-inline-padding);
}

.band,
.ai-portfolio,
.skills,
.archive {
  --parallax-y: 0px;
  isolation: isolate;
  overflow: hidden;
}

.band::before,
.ai-portfolio::before,
.skills::before,
.archive::before {
  position: absolute;
  inset: 12% -10% auto;
  z-index: -1;
  height: 160px;
  background:
    radial-gradient(circle at 20% 50%, color-mix(in srgb, var(--accent) 14%, transparent), transparent 35%),
    linear-gradient(90deg, transparent, color-mix(in srgb, var(--border) 24%, transparent), transparent);
  content: "";
  opacity: 0.62;
  pointer-events: none;
  transform: translate3d(0, var(--parallax-y), 0);
  transition: transform 120ms linear;
}

.test-hero {
  display: grid;
  min-height: 58svh;
  align-content: center;
  gap: 18px;
  background: var(--test-hero-gradient), var(--bg-strong);
}

.test-hero p:not(.eyebrow) {
  max-width: 760px;
  margin: 0;
  color: var(--text);
  font-size: clamp(1.05rem, 2vw, 1.25rem);
}

.hero {
  display: grid;
  min-height: calc(100svh - 66px);
  grid-template-columns: minmax(0, 1.5fr) minmax(280px, 0.7fr);
  align-items: center;
  gap: clamp(32px, 6vw, 80px);
  background: var(--hero-gradient), var(--bg-strong);
}

.hero > * {
  min-width: 0;
}

.hero-copy {
  max-width: 100%;
}

.band > *,
.ai-portfolio > *,
.skills > *,
.archive > * {
  width: min(100%, var(--content-max));
  margin-right: auto;
  margin-left: auto;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
  overflow-wrap: anywhere;
}

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

h1 {
  max-width: 980px;
  margin-bottom: 24px;
  color: var(--text-strong);
  font-size: clamp(2.6rem, 6vw, 5.9rem);
  line-height: 0.96;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

h2 {
  max-width: 760px;
  margin-bottom: 0;
  color: var(--text-strong);
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.05;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  color: var(--text-strong);
  font-size: 1.16rem;
  line-height: 1.25;
}

.hero-summary {
  max-width: 820px;
  color: var(--text);
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  overflow-wrap: anywhere;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 10px 16px;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
  font: inherit;
}

.button.primary {
  background: var(--accent);
  color: var(--button-primary-text);
}

.button.secondary {
  border-color: var(--border);
  background: var(--panel);
  color: var(--text-strong);
}

.resume-panel {
  display: grid;
  gap: 18px;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px;
  background: color-mix(in srgb, var(--panel) 85%, transparent);
  box-shadow: 0 24px 80px color-mix(in srgb, var(--bg-strong) 40%, transparent);
}

.resume-panel div {
  border-left: 3px solid var(--accent);
  padding-left: 16px;
}

.metric {
  display: block;
  color: var(--text-strong);
  font-size: 2rem;
  font-weight: 900;
  line-height: 1;
}

.metric-label {
  display: block;
  margin-top: 6px;
  color: var(--muted);
}

.band {
  background: var(--bg);
}

.ai-portfolio {
  background: var(--panel-soft);
}

.section-heading {
  max-width: 840px;
  margin-bottom: 36px;
}

.section-heading p:not(.eyebrow) {
  margin-top: 16px;
  color: var(--muted);
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.project-card,
.timeline article {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel);
  transition:
    border-color 180ms ease,
    box-shadow 180ms ease,
    transform 180ms ease;
}

.project-card {
  min-height: 220px;
  padding: 22px;
}

.project-card:hover,
.project-card:focus-within,
.timeline article:hover,
.timeline article:focus-within {
  border-color: color-mix(in srgb, var(--accent) 56%, var(--border));
  box-shadow: 0 16px 40px color-mix(in srgb, var(--accent) 13%, transparent);
  transform: translateY(-3px);
}

.project-card p,
.timeline p {
  margin-bottom: 0;
  color: var(--text);
}

.project-card a {
  color: inherit;
  text-decoration-color: color-mix(in srgb, var(--accent) 55%, transparent);
  text-underline-offset: 4px;
}

.project-card a:hover,
.project-card a:focus-visible {
  color: var(--accent);
}

.ai-project-grid .project-card {
  min-height: 260px;
}

.skills {
  background: var(--panel-soft);
}

.skill-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.skill-cloud span {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 12px;
  background: color-mix(in srgb, var(--bg) 60%, transparent);
  color: var(--text);
  font-weight: 700;
}

.timeline {
  display: grid;
  gap: 14px;
}

.timeline article {
  padding: 22px;
}

.role-meta {
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
}

.archive {
  background: var(--bg-strong);
}

.archive-frame {
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--archive-frame-bg);
  aspect-ratio: 16 / 9;
}

.archive-frame iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  padding: 28px var(--section-inline-padding);
  background: var(--bg-strong);
  border-top: 1px solid var(--border);
  color: var(--muted);
}

.site-footer a {
  color: var(--text);
  text-decoration: none;
}

.footer-contact {
  border: 0;
  padding: 0;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  font: inherit;
}

.footer-contact:hover,
.footer-contact:focus-visible {
  color: var(--accent);
  outline: none;
}

@media (max-width: 860px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  nav {
    justify-content: flex-start;
  }

  .header-actions {
    width: 100%;
    align-items: flex-start;
    justify-content: space-between;
  }

  .hero {
    display: block;
    grid-template-columns: 1fr;
  }

  .resume-panel {
    margin-top: 32px;
  }

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

  .archive-frame {
    aspect-ratio: 4 / 3;
  }
}

@media (max-width: 520px) {
  .site-header {
    padding-right: 16px;
    padding-left: 16px;
  }

  .header-actions {
    display: grid;
    grid-template-columns: 1fr auto;
  }

  nav {
    grid-column: 1 / -1;
    width: 100%;
  }

  .theme-toggle {
    grid-column: 2;
    grid-row: 1;
    justify-self: end;
  }

  .hero,
  .band,
  .ai-portfolio,
  .skills,
  .archive {
    padding-left: 16px;
    padding-right: 16px;
  }

  h1 {
    font-size: 1.92rem;
    line-height: 1.04;
  }

  .hero-summary {
    font-size: 1rem;
  }

  .button {
    width: 100%;
  }

  .project-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 430px) {
  nav {
    gap: 6px;
    font-size: 0.86rem;
  }

  nav a {
    padding: 5px 7px;
  }
}

@media (hover: none) {
  .project-card:hover,
  .project-card:focus-within,
  .timeline article:hover,
  .timeline article:focus-within {
    box-shadow: none;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  .js .reveal-item,
  .js .reveal-item.is-visible,
  .band::before,
  .ai-portfolio::before,
  .skills::before,
  .archive::before {
    opacity: 1;
    transform: none;
    transition-delay: 0ms;
  }
}