:root {
  color-scheme: light;
  --font-sans: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --color-bg: #f7f3ec;
  --color-bg-soft: #efe9df;
  --color-surface: #fffdf8;
  --color-surface-strong: #ffffff;
  --color-text: #242526;
  --color-muted: #626967;
  --color-subtle: #8b938f;
  --color-border: #ded6ca;
  --color-accent: #176b87;
  --color-accent-strong: #0e566f;
  --color-accent-soft: #dceef3;
  --color-focus: #0f7ea4;
  --shadow-sm: 0 10px 30px rgba(36, 37, 38, 0.08);
  --shadow-md: 0 18px 55px rgba(36, 37, 38, 0.12);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --container: 1160px;
  --header-height: 72px;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --color-bg: #151716;
    --color-bg-soft: #1d211f;
    --color-surface: #202422;
    --color-surface-strong: #262b28;
    --color-text: #f2eee7;
    --color-muted: #bdc4c0;
    --color-subtle: #8f9994;
    --color-border: #3a403d;
    --color-accent: #75bdd0;
    --color-accent-strong: #9bd8e5;
    --color-accent-soft: #183a44;
    --color-focus: #85d5ec;
    --shadow-sm: 0 10px 30px rgba(0, 0, 0, 0.22);
    --shadow-md: 0 18px 55px rgba(0, 0, 0, 0.34);
  }
}

[data-theme="light"] {
  color-scheme: light;
  --color-bg: #f7f3ec;
  --color-bg-soft: #efe9df;
  --color-surface: #fffdf8;
  --color-surface-strong: #ffffff;
  --color-text: #242526;
  --color-muted: #626967;
  --color-subtle: #8b938f;
  --color-border: #ded6ca;
  --color-accent: #176b87;
  --color-accent-strong: #0e566f;
  --color-accent-soft: #dceef3;
  --color-focus: #0f7ea4;
  --shadow-sm: 0 10px 30px rgba(36, 37, 38, 0.08);
  --shadow-md: 0 18px 55px rgba(36, 37, 38, 0.12);
}

[data-theme="dark"] {
  color-scheme: dark;
  --color-bg: #151716;
  --color-bg-soft: #1d211f;
  --color-surface: #202422;
  --color-surface-strong: #262b28;
  --color-text: #f2eee7;
  --color-muted: #bdc4c0;
  --color-subtle: #8f9994;
  --color-border: #3a403d;
  --color-accent: #75bdd0;
  --color-accent-strong: #9bd8e5;
  --color-accent-soft: #183a44;
  --color-focus: #85d5ec;
  --shadow-sm: 0 10px 30px rgba(0, 0, 0, 0.22);
  --shadow-md: 0 18px 55px rgba(0, 0, 0, 0.34);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + var(--space-5));
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: clamp(1rem, 0.96rem + 0.2vw, 1.08rem);
  line-height: 1.6;
  letter-spacing: 0;
  text-rendering: optimizeLegibility;
}

body.nav-open {
  overflow: hidden;
}

img,
svg {
  max-width: 100%;
}

a {
  color: inherit;
}

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 4px;
}

h1,
h2,
h3,
h4,
p {
  margin-top: 0;
}

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

h1 {
  margin-bottom: var(--space-3);
  font-size: clamp(3.5rem, 17vw, 5.8rem);
}

h2 {
  margin-bottom: var(--space-4);
  font-size: clamp(2rem, 7vw, 3.4rem);
}

h3 {
  margin-bottom: var(--space-3);
  font-size: clamp(1.2rem, 2.4vw, 1.55rem);
}

p {
  color: var(--color-muted);
}

ul,
dl {
  margin: 0;
}

.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;
}

.skip-link {
  position: fixed;
  top: var(--space-3);
  left: var(--space-3);
  z-index: 100;
  transform: translateY(-160%);
  border-radius: var(--radius-sm);
  background: var(--color-accent);
  color: #ffffff;
  padding: var(--space-3) var(--space-4);
  text-decoration: none;
  font-weight: 700;
}

.skip-link:focus {
  transform: translateY(0);
}

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

.section {
  padding-block: clamp(4rem, 8vw, 7.5rem);
}

.section-muted {
  background: var(--color-bg-soft);
  border-block: 1px solid var(--color-border);
}

.section-heading {
  max-width: 680px;
}

.section-heading.centered {
  margin-inline: auto;
  text-align: center;
}

.section-content {
  max-width: 760px;
}

.eyebrow {
  margin-bottom: var(--space-3);
  color: var(--color-accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  min-height: var(--header-height);
  border-bottom: 1px solid color-mix(in srgb, var(--color-border), transparent 30%);
  background: color-mix(in srgb, var(--color-bg), transparent 12%);
  backdrop-filter: blur(18px);
}

.header-inner {
  width: min(100% - 2rem, var(--container));
  min-height: var(--header-height);
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: var(--space-3);
}

.wordmark {
  width: max-content;
  color: var(--color-text);
  font-size: 1.05rem;
  font-weight: 800;
  text-decoration: none;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
  justify-content: flex-end;
}

.site-nav a {
  border-radius: 999px;
  color: var(--color-muted);
  font-size: 0.92rem;
  font-weight: 700;
  padding: 0.55rem 0.8rem;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a.is-active {
  background: var(--color-accent-soft);
  color: var(--color-accent-strong);
}

.menu-toggle,
.theme-toggle {
  min-width: 44px;
  min-height: 44px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: var(--color-surface);
  color: var(--color-text);
  cursor: pointer;
  display: inline-grid;
  place-items: center;
}

.menu-toggle {
  display: none;
}

.menu-toggle-lines,
.menu-toggle-lines::before,
.menu-toggle-lines::after {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 99px;
  background: currentColor;
}

.menu-toggle-lines {
  position: relative;
}

.menu-toggle-lines::before,
.menu-toggle-lines::after {
  content: "";
  position: absolute;
  left: 0;
}

.menu-toggle-lines::before {
  top: -6px;
}

.menu-toggle-lines::after {
  top: 6px;
}

.theme-toggle-icon {
  width: 18px;
  height: 18px;
  border: 2px solid currentColor;
  border-radius: 50%;
  background: linear-gradient(90deg, currentColor 50%, transparent 50%);
}

.hero {
  position: relative;
  overflow: hidden;
  padding-top: clamp(5.5rem, 9vw, 8rem);
}

.hero-background {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.55;
  background:
    linear-gradient(var(--color-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, black 0%, transparent 72%);
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 4vw 8% auto;
  width: min(36vw, 460px);
  aspect-ratio: 1;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  opacity: 0.22;
  pointer-events: none;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--space-6);
  align-items: center;
}

.hero-copy {
  max-width: 760px;
}

.role-line {
  margin-bottom: var(--space-4);
  color: var(--color-text);
  font-size: clamp(1.25rem, 4vw, 1.75rem);
  font-weight: 750;
}

.hero-intro {
  max-width: 680px;
  font-size: clamp(1.06rem, 2.6vw, 1.25rem);
}

.status-line {
  display: grid;
  gap: var(--space-1);
  margin-block: var(--space-5);
  color: var(--color-muted);
}

.status-line span {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.status-line span::before {
  content: "";
  flex: 0 0 auto;
  width: 0.48rem;
  height: 0.48rem;
  border-radius: 50%;
  background: var(--color-accent);
}

.hero-actions,
.hero-links,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
}

.button {
  min-height: 44px;
  border: 1px solid transparent;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.78rem 1.1rem;
  font-weight: 800;
  line-height: 1.2;
  text-decoration: none;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  background: var(--color-accent);
  color: #ffffff;
  box-shadow: var(--shadow-sm);
}

.button-primary:hover {
  background: var(--color-accent-strong);
  color: #ffffff;
}

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

.hero-links {
  margin-top: var(--space-4);
}

.hero-links a,
.text-link,
.site-footer a {
  color: var(--color-accent-strong);
  font-weight: 800;
  text-underline-offset: 0.22em;
}

.profile-card {
  max-width: 420px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--color-surface), transparent 5%);
  box-shadow: var(--shadow-md);
  padding: var(--space-5);
}

.profile-card-top,
.profile-card-footer {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
  color: var(--color-muted);
  font-size: 0.9rem;
  font-weight: 700;
}

.profile-status-dot {
  width: 0.65rem;
  height: 0.65rem;
  border-radius: 50%;
  background: #28a86b;
  box-shadow: 0 0 0 6px color-mix(in srgb, #28a86b, transparent 82%);
}

.profile-card-name {
  margin-block: var(--space-5);
  border-block: 1px solid var(--color-border);
  padding-block: var(--space-5);
  font-size: clamp(2rem, 8vw, 3rem);
  font-weight: 850;
  line-height: 1;
}

.profile-list {
  display: grid;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.profile-list div,
.facts-grid div {
  display: grid;
  gap: var(--space-1);
}

.profile-list dt,
.facts-grid dt {
  color: var(--color-subtle);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.profile-list dd,
.facts-grid dd {
  margin: 0;
  color: var(--color-text);
  font-weight: 750;
}

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

.facts-grid {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.facts-grid div {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  padding: var(--space-4);
}

.skills-grid,
.projects-grid {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.skill-card,
.project-card,
.education-card,
.experience-card,
.contact-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.skill-card {
  padding: var(--space-5);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding: 0;
  list-style: none;
}

.tag-list li {
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: color-mix(in srgb, var(--color-surface-strong), var(--color-accent-soft) 38%);
  color: var(--color-text);
  font-size: 0.86rem;
  font-weight: 750;
  padding: 0.38rem 0.68rem;
}

.project-card {
  overflow: clip;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.project-card:hover {
  border-color: color-mix(in srgb, var(--color-accent), var(--color-border) 45%);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.project-preview {
  min-height: 230px;
  border-bottom: 1px solid var(--color-border);
  background:
    radial-gradient(circle at 18% 18%, var(--color-accent-soft), transparent 38%),
    linear-gradient(135deg, var(--color-surface), var(--color-bg-soft));
  display: grid;
  place-items: center;
  padding: var(--space-5);
}

.project-preview img {
  display: block;
  width: 100%;
  max-width: 520px;
  max-height: 360px;
  object-fit: contain;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface-strong);
  box-shadow: var(--shadow-sm);
}

.project-body {
  padding: var(--space-5);
}

.project-meta,
.experience-header,
.education-header {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: flex-start;
  justify-content: space-between;
}

.project-meta {
  margin-bottom: var(--space-3);
  color: var(--color-subtle);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.project-tags {
  margin-block: var(--space-4);
}

.highlight-list,
.check-list {
  display: grid;
  gap: var(--space-2);
  padding-left: 1.2rem;
  color: var(--color-muted);
}

.project-actions {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-5);
}

details {
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-3);
}

summary {
  cursor: pointer;
  color: var(--color-accent-strong);
  font-weight: 800;
}

summary + p {
  margin: var(--space-3) 0 0;
}

.project-card-small {
  background: linear-gradient(135deg, var(--color-surface), var(--color-accent-soft));
}

.timeline {
  position: relative;
}

.timeline::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0.45rem;
  width: 1px;
  background: var(--color-border);
}

.experience-card {
  position: relative;
  margin-left: var(--space-5);
  padding: var(--space-5);
}

.timeline-marker {
  position: absolute;
  top: var(--space-5);
  left: calc(-1 * var(--space-5) - 0.12rem);
  width: 0.9rem;
  height: 0.9rem;
  border: 3px solid var(--color-bg-soft);
  border-radius: 50%;
  background: var(--color-accent);
}

.experience-header,
.education-header {
  margin-bottom: var(--space-4);
}

.experience-header p,
.education-header p {
  margin-bottom: 0;
}

.experience-header span,
.education-header span {
  color: var(--color-muted);
  font-size: 0.92rem;
  font-weight: 750;
}

.callout {
  margin-top: var(--space-5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-soft);
  padding: var(--space-4);
}

.callout h4 {
  margin-bottom: var(--space-2);
  font-size: 1rem;
}

.callout p {
  margin-bottom: 0;
}

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

.education-card {
  padding: var(--space-5);
}

.contact-section {
  padding-top: 0;
}

.contact-card {
  padding: clamp(2rem, 6vw, 4rem);
  text-align: center;
}

.contact-card p {
  max-width: 680px;
  margin-inline: auto;
}

.contact-actions {
  justify-content: center;
  margin-top: var(--space-5);
}

.site-footer {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-6);
  background: var(--color-bg-soft);
}

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

.footer-inner p {
  margin: var(--space-1) 0 0;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

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

.js-enabled .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 550ms ease, transform 550ms ease;
}

.js-enabled .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (min-width: 640px) {
  .facts-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .wide-fact {
    grid-column: 1 / -1;
  }

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

  .project-actions {
    grid-template-columns: auto 1fr;
    align-items: start;
  }
}

@media (min-width: 900px) {
  .header-inner {
    grid-template-columns: auto 1fr auto;
  }

  .hero-grid {
    grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
  }

  .profile-card {
    justify-self: end;
  }

  .two-column {
    grid-template-columns: minmax(220px, 0.36fr) minmax(0, 1fr);
    align-items: start;
  }

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

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

  .project-card-large {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: minmax(320px, 0.95fr) minmax(0, 1.05fr);
  }

  .project-card-large .project-preview {
    min-height: 100%;
    border-right: 1px solid var(--color-border);
    border-bottom: 0;
  }

  .project-card-small {
    grid-column: 1 / -1;
  }

  .footer-inner {
    grid-template-columns: 1fr auto;
    align-items: center;
  }
}

@media (max-width: 899px) {
  .header-inner {
    grid-template-columns: 1fr auto auto;
  }

  .js-enabled .menu-toggle {
    display: inline-grid;
  }

  .site-nav {
    grid-column: 1 / -1;
    justify-content: stretch;
    padding-bottom: var(--space-3);
  }

  .site-nav a {
    flex: 1 1 140px;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    text-align: center;
  }

  .js-enabled .site-nav {
    display: none;
  }

  .js-enabled.nav-open .site-nav {
    display: flex;
  }
}

@media (max-width: 520px) {
  .container,
  .header-inner {
    width: min(100% - 1rem, var(--container));
  }

  .section {
    padding-block: 3.5rem;
  }

  .hero {
    padding-top: 4.5rem;
  }

  .button,
  .contact-actions .button {
    width: 100%;
  }

  .hero-links {
    justify-content: center;
  }

  .profile-card,
  .project-body,
  .skill-card,
  .education-card,
  .experience-card {
    padding: var(--space-4);
  }

}

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

  .js-enabled .reveal {
    opacity: 1;
    transform: none;
  }
}