:root {
  color-scheme: light;
  --ink: #1c2421;
  --ink-soft: #3a4540;
  --muted: #5f6b65;
  --line: #d5d9d4;
  --paper: #f3f4f1;
  --paper-deep: #e6e8e2;
  --band: #ebede7;
  --accent: #b85c38;
  --accent-ink: #8f4124;
  --hero-ink: #f5f2eb;
  --shadow-soft: 0 18px 40px rgba(28, 36, 33, 0.08);
  --font-display: 'Newsreader', Georgia, serif;
  --font-body: 'Sora', 'Segoe UI', sans-serif;
  --radius: 4px;
  --header-h: 4.25rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background-color: var(--paper);
  background-image:
    linear-gradient(180deg, rgba(243, 244, 241, 0.92), rgba(243, 244, 241, 0.96)),
    repeating-linear-gradient(
      -12deg,
      transparent 0,
      transparent 11px,
      rgba(28, 36, 33, 0.025) 11px,
      rgba(28, 36, 33, 0.025) 12px
    );
  line-height: 1.65;
  overflow-x: hidden;
}

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

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

button,
select {
  font: inherit;
}

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

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  z-index: 100;
  padding: 0.65rem 1rem;
  background: var(--ink);
  color: var(--hero-ink);
  transition: top 160ms ease;
}

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

.container {
  width: min(1120px, calc(100% - 2.5rem));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--header-h);
  background: rgba(243, 244, 241, 0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(28, 36, 33, 0.08);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: var(--header-h);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 2.1rem;
  height: 2.1rem;
  border: 1px solid var(--ink);
  font-family: var(--font-display);
  font-weight: 650;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
}

.brand-name {
  font-size: 0.92rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.15rem;
  color: var(--ink-soft);
  font-size: 0.92rem;
  font-weight: 500;
}

.nav-links a {
  position: relative;
  padding: 0.2rem 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -0.15rem;
  width: 100%;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 220ms ease;
}

.nav-links a:hover::after,
.nav-links a:focus-visible::after {
  transform: scaleX(1);
}

.lang-toggle {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  padding: 0.35rem 0.65rem;
  cursor: pointer;
  letter-spacing: 0.06em;
  font-size: 0.78rem;
  font-weight: 600;
}

.lang-toggle:hover {
  border-color: var(--ink);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 0.4rem;
  width: 2.4rem;
  height: 2.4rem;
  border: 0;
  background: transparent;
  padding: 0;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 1.35rem;
  height: 1.5px;
  background: var(--ink);
  transition: transform 200ms ease, opacity 200ms ease;
}

.menu-toggle[aria-expanded='true'] span:first-child {
  transform: translateY(0.28rem) rotate(45deg);
}

.menu-toggle[aria-expanded='true'] span:last-child {
  transform: translateY(-0.28rem) rotate(-45deg);
}

/* Hero: one composition, brand-first, full-bleed media */
.hero {
  position: relative;
  min-height: calc(100vh - var(--header-h));
  min-height: calc(100svh - var(--header-h));
  display: grid;
  align-items: end;
  color: var(--hero-ink);
  overflow: hidden;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 28%;
  transform: scale(1.04);
  animation: hero-pan 18s ease-in-out infinite alternate;
}

.hero-media-shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(18, 24, 22, 0.88) 0%, rgba(18, 24, 22, 0.72) 42%, rgba(18, 24, 22, 0.35) 100%),
    linear-gradient(180deg, rgba(18, 24, 22, 0.2) 0%, rgba(18, 24, 22, 0.75) 100%);
}

.hero > .container {
  position: relative;
  z-index: 1;
  width: 100%;
}

.hero-content {
  padding: 4.5rem 0 4rem;
  max-width: 38rem;
}

.hero-brand {
  margin: 0 0 0.85rem;
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6vw, 4.4rem);
  font-weight: 650;
  line-height: 0.98;
  letter-spacing: -0.02em;
  max-width: 12ch;
}

.hero h1 {
  margin: 0 0 1rem;
  font-family: var(--font-body);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(245, 242, 235, 0.88);
}

.hero-lead {
  margin: 0;
  max-width: 34rem;
  font-size: 1.05rem;
  line-height: 1.7;
  color: rgba(245, 242, 235, 0.78);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 1.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.85rem;
  padding: 0.75rem 1.25rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.92rem;
  transition: background 180ms ease, color 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--accent);
  color: #fff8f4;
}

.btn-primary:hover {
  background: var(--accent-ink);
}

.btn-secondary {
  background: transparent;
  border-color: rgba(245, 242, 235, 0.55);
  color: var(--hero-ink);
}

.btn-secondary:hover {
  border-color: var(--hero-ink);
  background: rgba(245, 242, 235, 0.08);
}

.contact .btn-secondary {
  border-color: var(--ink);
  color: var(--ink);
}

.contact .btn-secondary:hover {
  background: var(--ink);
  color: var(--paper);
}

.section {
  padding: 5rem 0;
}

.section-band {
  background: var(--band);
  border-top: 1px solid rgba(28, 36, 33, 0.06);
  border-bottom: 1px solid rgba(28, 36, 33, 0.06);
}

.section-heading {
  margin-bottom: 2rem;
  max-width: 40rem;
}

.eyebrow {
  margin: 0 0 0.65rem;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-ink);
}

h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 3.2vw, 2.75rem);
  font-weight: 650;
  line-height: 1.12;
  letter-spacing: -0.02em;
}

h3 {
  margin: 0 0 0.45rem;
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 650;
  line-height: 1.25;
}

.section-lead {
  margin: 0.9rem 0 0;
  color: var(--muted);
  max-width: 38rem;
  font-size: 1.02rem;
}

.section-footnote {
  margin: 1.75rem 0 0;
}

.text-link {
  color: var(--accent-ink);
  font-weight: 600;
  border-bottom: 1px solid transparent;
  transition: border-color 160ms ease;
}

.text-link:hover {
  border-bottom-color: var(--accent);
}

.about-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 2.5rem 3rem;
  align-items: start;
}

.about-copy {
  display: grid;
  gap: 1rem;
}

.about-copy p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 1.05rem;
}

.skill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 0.7rem;
  list-style: none;
  margin: 0.6rem 0 0;
  padding: 0;
}

.skill-list li {
  font-size: 0.86rem;
  font-weight: 500;
  color: var(--ink-soft);
  padding-bottom: 0.15rem;
  border-bottom: 1px solid var(--line);
}

.timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.timeline-item {
  display: grid;
  grid-template-columns: 11rem 1fr;
  gap: 1.5rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--line);
}

.timeline-date {
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--accent-ink);
  padding-top: 0.2rem;
}

.timeline-body p {
  margin: 0;
  color: var(--muted);
  max-width: 42rem;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem 1.75rem;
}

.project-item {
  display: grid;
  gap: 0.65rem;
  padding-top: 1.1rem;
  border-top: 2px solid var(--ink);
  min-height: 11rem;
  transition: transform 200ms ease;
}

.project-item:hover {
  transform: translateY(-3px);
}

.project-item h3 {
  font-size: 1.25rem;
}

.project-item p {
  margin: 0;
  color: var(--muted);
  font-size: 0.96rem;
}

.project-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-top: auto;
  padding-top: 0.4rem;
  font-size: 0.86rem;
  color: var(--muted);
}

.project-link {
  color: var(--accent-ink);
  font-weight: 600;
}

.cert-featured {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem 1.25rem;
  margin-bottom: 2.25rem;
}

.cert-feature {
  display: grid;
  gap: 0.45rem;
  padding: 1.15rem 0;
  border-top: 2px solid var(--accent);
}

.cert-feature strong {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 650;
  line-height: 1.25;
}

.cert-feature span {
  color: var(--muted);
  font-size: 0.9rem;
}

.cert-feature a {
  color: var(--accent-ink);
  font-weight: 600;
  font-size: 0.9rem;
  width: fit-content;
}

.cert-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.85rem;
  margin-bottom: 1.25rem;
}

.cert-filter {
  min-width: min(100%, 16rem);
  padding: 0.65rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink);
}

.cert-count {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.cert-list {
  display: grid;
  gap: 0.85rem;
}

.cert-year-group {
  border-top: 1px solid var(--line);
  padding-top: 0.35rem;
}

.cert-year-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 0;
  border: 0;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  text-align: left;
}

.cert-year-toggle span:first-child {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 650;
}

.cert-year-count {
  color: var(--muted);
  font-size: 0.9rem;
}

.cert-year-icon {
  color: var(--accent-ink);
  font-size: 1.1rem;
}

.cert-year-items {
  display: grid;
  gap: 0;
  padding-bottom: 0.5rem;
}

.cert-year-items.collapsed {
  display: none;
}

.cert-item {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 0.85rem 0;
  border-top: 1px solid rgba(28, 36, 33, 0.08);
}

.cert-item strong {
  display: block;
  margin-bottom: 0.2rem;
  font-weight: 600;
  font-size: 0.98rem;
}

.meta-row {
  color: var(--muted);
  font-size: 0.88rem;
}

.cert-date {
  color: var(--accent-ink);
  font-weight: 600;
}

.cert-link {
  color: var(--accent-ink);
  font-size: 0.9rem;
  font-weight: 600;
  white-space: nowrap;
}

.contact {
  text-align: center;
  background:
    radial-gradient(ellipse at top, rgba(184, 92, 56, 0.1), transparent 55%),
    var(--paper);
}

.contact-inner {
  max-width: 40rem;
  margin: 0 auto;
}

.contact .section-lead {
  margin-left: auto;
  margin-right: auto;
}

.contact-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 1.75rem;
}

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

.footer {
  padding: 1.5rem 0 2rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.footer-content {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-top: 1px solid var(--line);
  padding-top: 1.25rem;
}

.footer-content p {
  margin: 0;
}

.socials {
  display: flex;
  gap: 0.55rem;
}

.socials a {
  display: inline-grid;
  place-items: center;
  width: 2.3rem;
  height: 2.3rem;
  border: 1px solid var(--line);
  color: var(--ink-soft);
  transition: border-color 160ms ease, color 160ms ease;
}

.socials a:hover {
  border-color: var(--ink);
  color: var(--ink);
}

.socials svg {
  width: 1rem;
  height: 1rem;
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 700ms ease, transform 700ms ease;
}

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

@keyframes hero-pan {
  from {
    transform: scale(1.04) translate3d(0, 0, 0);
  }
  to {
    transform: scale(1.1) translate3d(-1.5%, -1%, 0);
  }
}

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

  .reveal,
  .project-item,
  .btn,
  .nav-links a::after,
  .hero-media img {
    animation: none !important;
    transition: none !important;
  }

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

@media (max-width: 960px) {
  .about-layout,
  .projects-grid,
  .cert-featured {
    grid-template-columns: 1fr 1fr;
  }

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

  .timeline-item {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }
}

@media (max-width: 760px) {
  .menu-toggle {
    display: inline-flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.75rem 1.25rem 1.25rem;
    background: rgba(243, 244, 241, 0.97);
    border-bottom: 1px solid var(--line);
  }

  .nav-links.is-open {
    display: flex;
  }

  .nav-links a,
  .lang-toggle {
    padding: 0.85rem 0;
    border-bottom: 1px solid rgba(28, 36, 33, 0.08);
  }

  .lang-toggle {
    width: fit-content;
    margin-top: 0.5rem;
    border: 1px solid var(--line);
  }

  .hero-content {
    padding: 3.5rem 0 3rem;
  }

  .hero-brand {
    max-width: none;
  }

  .about-layout,
  .projects-grid,
  .cert-featured {
    grid-template-columns: 1fr;
  }

  .cert-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.45rem;
  }

  .footer-content {
    flex-direction: column;
    align-items: flex-start;
  }
}