::selection {
  background-color: var(--color-selection-bg, rgba(44, 62, 80, 0.15));
  color: var(--color-selection-text, var(--text-primary));
}

:root {
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3rem;

  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.7;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  --container-max: 1100px;
  --nav-height: 4.5rem;
  --transition-base: 200ms ease;
}

@media (min-width: 768px) {
  :root {
    --font-size-4xl: 3rem;
    --font-size-5xl: 4rem;
  }
}

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

html {
  scroll-behavior: smooth;
}

.scroll-container {
  scroll-snap-type: none;
}

body,
h1,
h2,
h3,
h4,
p,
ul,
ol,
figure {
  margin: 0;
}

body {
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(var(--rgb-color-background), 0.18), transparent 22%),
    linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-primary) 100%);
  color: var(--text-primary);
  font-family: "Inter", sans-serif;
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  text-rendering: optimizeLegibility;
  transition:
    background-color var(--transition-base),
    color var(--transition-base);
}

img {
  display: block;
  max-width: 100%;
}

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

button,
input,
textarea,
select {
  font: inherit;
}

button {
  border: 0;
  background: none;
  color: inherit;
  cursor: pointer;
}

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

:focus-visible {
  outline: 3px solid rgba(9, 105, 218, 0.35);
  outline-offset: 3px;
}

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

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

.page-shell {
  position: relative;
  isolation: isolate;
}

.page-shell::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    linear-gradient(120deg, rgba(var(--rgb-color-background), 0.08), transparent 40%),
    radial-gradient(circle at 80% 10%, rgba(var(--rgb-color-background), 0.16), transparent 25%);
}

.section {
  width: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: stretch;
  padding-block: var(--space-16);
  padding-inline: var(--space-6);
}

.section-full {
  min-height: 100vh;
}

.section-auto {
  min-height: auto;
}

.section-title {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 var(--space-12) 0;
  line-height: var(--line-height-tight);
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  max-width: 640px;
  margin: calc(-1 * var(--space-8)) 0 var(--space-12) 0;
  line-height: var(--line-height-relaxed);
}

.section-inner {
  max-width: var(--container-max);
  width: 100%;
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 120;
  padding-top: 0;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--nav-height);
  gap: var(--space-4);
}

.nav {
  position: relative;
  z-index: 100;
  width: 100%;
  padding: var(--space-4) var(--space-6);
  border-radius: 0 0 var(--radius-xl) var(--radius-xl);
  background: color-mix(in srgb, var(--accent) 94%, #0f1720 6%);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: all 200ms ease;
  border: 1px solid color-mix(in srgb, #ffffff 18%, transparent);
  box-shadow: 0 18px 42px rgba(28, 39, 52, 0.24);
}

.nav[data-scrolled="true"] {
  background: color-mix(in srgb, var(--accent) 94%, #0f1720 6%);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-color: color-mix(in srgb, #ffffff 18%, transparent);
  box-shadow: 0 18px 42px rgba(28, 39, 52, 0.24);
}

[data-theme="dark"] .nav[data-scrolled="true"] {
  background: color-mix(in srgb, var(--accent) 82%, #05070a 18%);
}

[data-theme="light"] .nav[data-scrolled="true"],
:root:not([data-theme="dark"]) .nav[data-scrolled="true"] {
  background: color-mix(in srgb, var(--accent) 94%, #0f1720 6%);
}

[data-theme="dark"] .nav {
  background: color-mix(in srgb, var(--accent) 82%, #05070a 18%);
  border-color: color-mix(in srgb, #ffffff 12%, transparent);
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.32);
}

.nav-brand {
  font-family: "JetBrains Mono", monospace;
  font-size: var(--font-size-lg);
  font-weight: 700;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.92);
}

.nav[data-scrolled="true"] .nav-brand,
.nav[data-scrolled="true"] .nav-link {
  color: rgba(255, 255, 255, 0.88);
}

.nav-menu {
  position: absolute;
  top: calc(100% + 0.75rem);
  left: 1rem;
  right: 1rem;
  display: none;
  padding: var(--space-4);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--bg-elevated) 96%, transparent);
  box-shadow: var(--shadow-lg);
}

.nav[data-scrolled="true"] .nav-menu {
  background: color-mix(in srgb, var(--accent) 96%, #17202a 4%);
  border-color: rgba(255, 255, 255, 0.12);
}

.nav-menu.open {
  display: block;
}

.nav-links {
  display: grid;
  gap: var(--space-3);
}

.nav-link {
  color: rgba(255, 255, 255, 0.82);
  transition: color var(--transition-base);
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--accent-warm);
}

.nav[data-scrolled="true"] .nav-link:hover,
.nav[data-scrolled="true"] .nav-link:focus-visible {
  color: var(--accent-warm);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-left: auto;
}

.theme-toggle,
.menu-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid var(--border-primary);
  border-radius: 999px;
  background: color-mix(in srgb, var(--bg-secondary) 88%, transparent);
  box-shadow: var(--shadow-sm);
  transition:
    transform var(--transition-base),
    border-color var(--transition-base),
    background-color var(--transition-base);
}

.nav[data-scrolled="true"] .theme-toggle,
.nav[data-scrolled="true"] .menu-toggle {
  border-color: rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
  box-shadow: none;
}

.theme-toggle:hover,
.menu-toggle:hover {
  transform: translateY(-1px);
  border-color: var(--accent-warm);
  color: var(--accent-warm);
}

.theme-toggle svg,
.menu-toggle svg {
  width: 1.125rem;
  height: 1.125rem;
}

.menu-toggle {
  position: relative;
}

.hero {
  text-align: left;
}

.hero-inner {
  max-width: var(--container-max);
  width: 100%;
  margin-inline: auto;
  display: grid;
  gap: var(--space-10);
  align-items: stretch;
  padding-top: clamp(4rem, 10vh, 6.5rem);
}

.hero-copy-block {
  display: grid;
  gap: var(--space-6);
  align-content: center;
}

.hero-location {
  display: inline-flex;
  padding: var(--space-1) var(--space-3);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  font-family: "JetBrains Mono", monospace;
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.hero-title {
  font-size: var(--font-size-5xl);
  font-weight: 700;
  line-height: var(--line-height-tight);
  margin: 0;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  max-width: none;
}

.hero-subtitle {
  font-size: var(--font-size-2xl);
  font-weight: 500;
  color: var(--text-secondary);
  margin: 0;
  max-width: none;
}

.hero-aside {
  width: 100%;
  display: flex;
  align-items: stretch;
  justify-content: flex-end;
}

.hero-aside-card {
  width: min(100%, 29rem);
  display: grid;
  align-content: start;
  gap: var(--space-5);
  padding: var(--space-8);
  border: 1px solid color-mix(in srgb, var(--accent) 14%, var(--border-primary));
  border-radius: calc(var(--radius-xl) + 4px);
  background:
    linear-gradient(155deg, color-mix(in srgb, var(--bg-secondary) 92%, transparent), color-mix(in srgb, var(--bg-code) 96%, transparent)),
    var(--bg-secondary);
  box-shadow: 0 18px 50px rgba(44, 62, 80, 0.08);
}

.hero-location-card {
  justify-self: start;
  margin-bottom: var(--space-5);
}

.hero-aside-title {
  margin: var(--space-2) 0 0 0;
  font-size: clamp(1.4rem, 3vw, 2rem);
  line-height: var(--line-height-tight);
  color: var(--text-primary);
}

.hero-aside-list {
  margin-top: var(--space-6);
  display: grid;
  gap: var(--space-3);
  list-style: none;
}

.hero-aside-list li {
  position: relative;
  padding-left: var(--space-6);
  color: var(--text-secondary);
  line-height: var(--line-height-relaxed);
}

.hero-aside-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68rem;
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 999px;
  background: var(--accent-warm);
}

.about-copy p {
  color: var(--text-secondary);
  line-height: var(--line-height-relaxed);
  text-align: justify;
}

.hero-ctas {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  margin-top: var(--space-4);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-6);
  font-family: inherit;
  font-size: var(--font-size-base);
  font-weight: 500;
  border-radius: var(--radius-md);
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 180ms ease;
}

.btn-primary {
  background: var(--accent);
  color: var(--text-on-accent);
  border-color: var(--accent);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--accent-warm);
  border-color: var(--accent-warm);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border-primary);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  background: var(--bg-code);
  border-color: var(--accent-warm);
  color: var(--accent-warm);
}

.about-grid {
  display: grid;
  gap: var(--space-10);
}

.about-heading {
  max-width: 36rem;
}

.about-showcase {
  display: grid;
  gap: var(--space-8);
  align-items: start;
}

.about-copy {
  display: grid;
  gap: var(--space-6);
  max-width: 46rem;
  align-content: start;
  padding-top: var(--space-2);
}

.profile-card {
  width: min(100%, 18rem);
  justify-self: start;
  padding: var(--space-4);
  border: 1px solid color-mix(in srgb, var(--accent) 12%, var(--border-primary));
  border-radius: calc(var(--radius-xl) + 6px);
  background: linear-gradient(180deg, color-mix(in srgb, var(--bg-secondary) 95%, transparent), color-mix(in srgb, var(--bg-code) 98%, transparent));
  box-shadow: var(--shadow-md);
}

.profile-card-photo {
  width: 100%;
  aspect-ratio: 5 / 6;
  object-fit: cover;
  object-position: center top;
  border-radius: calc(var(--radius-xl) + 2px);
  box-shadow: 0 12px 28px rgba(44, 62, 80, 0.12);
}

.contact-lead,
.contact-text {
  margin: 0;
}

.stack-grid {
  display: grid;
  gap: var(--space-4);
}

.stack-card,
.project-card {
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  background: color-mix(in srgb, var(--bg-elevated) 96%, transparent);
  box-shadow: var(--shadow-sm);
}

.stack-card {
  padding: var(--space-6);
}

.stack-card h3 {
  margin-bottom: var(--space-4);
  font-size: var(--font-size-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.badge-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 2rem;
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--border-secondary);
  border-radius: 999px;
  background: var(--bg-code);
  font-family: "JetBrains Mono", monospace;
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
}

.projects-grid {
  display: grid;
  gap: var(--space-6);
}

.project-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-secondary);
  border: 1px solid var(--border-secondary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 250ms cubic-bezier(0.4, 0, 0.2, 1),
    box-shadow 250ms cubic-bezier(0.4, 0, 0.2, 1),
    border-color 200ms ease;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
}

.project-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-warm);
}

.project-card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

.project-card-cover {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  object-position: center top;
  display: block;
  background: var(--bg-code);
}

.project-card-body {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  flex: 1;
}

.project-card-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
  line-height: var(--line-height-tight);
}

.project-card-meta {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  margin: 0;
}

.project-card-description {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: var(--line-height-relaxed);
  margin: 0;
}

.project-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: auto;
  padding-top: var(--space-2);
}

.project-card-tag {
  font-family: "JetBrains Mono", monospace;
  font-size: var(--font-size-xs);
  padding: var(--space-1) var(--space-3);
  background: var(--bg-code);
  border: 1px solid var(--border-secondary);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
}

.contact-panel {
  padding: clamp(1.5rem, 4vw, 3rem);
  border: 1px solid var(--border-primary);
  border-radius: calc(var(--radius-xl) + 8px);
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--bg-secondary) 98%, transparent) 0%, color-mix(in srgb, var(--bg-code) 96%, transparent) 100%);
  box-shadow: 0 18px 48px rgba(44, 62, 80, 0.08);
  display: grid;
  gap: var(--space-8);
}

.contact-copy {
  max-width: 42rem;
}

.contact-kicker {
  display: inline-flex;
  margin-bottom: var(--space-3);
  font-family: "JetBrains Mono", monospace;
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.contact-lead {
  font-size: clamp(1.35rem, 3vw, 2rem);
  line-height: var(--line-height-tight);
  color: var(--text-primary);
}

.contact-text {
  margin-top: var(--space-3);
  color: var(--text-secondary);
  line-height: var(--line-height-relaxed);
}

.contact-links {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
  padding-inline: 0;
}

.contact-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: var(--space-4);
  min-height: 8.75rem;
  padding: var(--space-6) var(--space-4);
  border: 1px solid var(--border-secondary);
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--bg-secondary) 92%, transparent);
  transition:
    transform var(--transition-base),
    background-color var(--transition-base),
    color var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base);
}

.contact-link svg {
  width: 2rem;
  height: 2rem;
  color: var(--text-secondary);
  transition: color var(--transition-base);
}

.contact-link span {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--text-primary);
}

.contact-link:hover,
.contact-link:focus-visible {
  transform: translateY(-4px);
  background: var(--bg-code);
  border-color: color-mix(in srgb, var(--accent-warm) 48%, var(--border-secondary));
  box-shadow: var(--shadow-md);
}

.contact-link:hover svg,
.contact-link:hover span,
.contact-link:focus-visible svg,
.contact-link:focus-visible span {
  color: var(--accent-warm);
}

.site-footer {
  padding: var(--space-8) 0;
  border-top: 1px solid var(--border-secondary);
}

.footer-layout {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  color: var(--text-muted);
  font-size: var(--font-size-sm);
}

.back-link {
  padding-top: var(--space-8);
  padding-bottom: var(--space-6);
}

.back-link a {
  color: var(--text-link);
  font-weight: 500;
}

.simple-page {
  display: grid;
  place-items: center;
  min-height: calc(100vh - var(--nav-height) - 6rem);
  text-align: center;
}

.simple-page .btn {
  margin-top: var(--space-6);
}

@media (max-width: 767px) {
  .hero-title {
    font-size: 2.75rem;
    word-break: keep-all;
    overflow-wrap: normal;
  }

  .hero-subtitle {
    font-size: var(--font-size-xl);
  }

  .hero-description {
    font-size: var(--font-size-base);
  }

  .contact-links {
    grid-template-columns: 1fr;
    padding-inline: 0;
  }
}

@media (min-width: 480px) {
  .container {
    width: min(calc(100% - 2.5rem), var(--container-max));
  }
}

@media (min-width: 768px) {
  .hero-title,
  .hero-subtitle {
    white-space: nowrap;
  }

  .hero-inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: var(--space-12);
  }

  .hero-aside-card {
    width: min(100%, 28rem);
  }

  .nav-menu {
    position: static;
    display: block;
    order: 2;
    margin-left: auto;
    padding: 0;
    border: 0;
    background: transparent;
    box-shadow: none;
  }

  .nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-6);
  }

  .menu-toggle {
    display: none;
  }

  .site-nav {
    gap: var(--space-8);
  }

  .nav-actions {
    order: 3;
    margin-left: 0;
  }

  .about-showcase {
    grid-template-columns: minmax(14.5rem, 18rem) minmax(0, 1fr);
  }

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

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

  .footer-layout {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

@media (min-width: 1024px) {
  html {
    scroll-snap-type: y proximity;
  }

  .section {
    scroll-snap-align: start;
    scroll-snap-stop: normal;
    padding-inline: var(--space-12);
  }

  .section-full {
    height: 100vh;
    min-height: 100vh;
    scroll-snap-align: start;
    scroll-snap-stop: always;
  }

  .hero.section-full {
    justify-content: flex-start;
  }

  .site-header {
    padding-top: 0;
  }

  .stack-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .projects-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .about-copy {
    padding-top: 0;
  }
}

@media (min-width: 1280px) {
  .section {
    padding-block: var(--space-20);
  }

  .hero-aside-card {
    width: min(100%, 27rem);
  }

  .about-copy {
    padding-top: 0;
  }
}