/* ── Design tokens ─────────────────────────────────────────── */
:root {
  --color-bg: #f8f9fb;
  --color-bg-alt: #eef1f6;
  --color-surface: #ffffff;
  --color-text: #1a2332;
  --color-text-muted: #4a5568;
  --color-accent: #1e4d6b;
  --color-accent-hover: #163a52;
  --color-accent-warm: #9a6b3f;
  --color-border: #d8dee8;
  --font-serif: "DM Serif Display", Georgia, serif;
  --font-sans: "Outfit", system-ui, sans-serif;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 4px 24px rgba(26, 35, 50, 0.06);
  --shadow-hover: 0 8px 32px rgba(26, 35, 50, 0.1);
  --max-width: 1100px;
  --header-height: 72px;
  --transition: 0.25s ease;
}

/* ── Reset & base ──────────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  font-weight: 400;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

/* ── Accessibility ─────────────────────────────────────────── */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 200;
  padding: 0.75rem 1.25rem;
  background: var(--color-accent);
  color: #fff;
  border-radius: var(--radius);
  font-weight: 500;
}

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

/* ── Layout ────────────────────────────────────────────────── */
.container {
  width: min(100% - 2.5rem, var(--max-width));
  margin-inline: auto;
}

.section {
  padding: 5rem 0;
}

.section-alt {
  background: var(--color-bg-alt);
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 400;
  line-height: 1.15;
  margin-bottom: 0.75rem;
}

.section-intro {
  color: var(--color-text-muted);
  max-width: 42ch;
  margin-bottom: 2.5rem;
}

/* ── Header & nav ──────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(248, 249, 251, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(100% - 2.5rem, var(--max-width));
  height: 100%;
  margin-inline: auto;
  gap: 1rem;
}

.nav-end {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.lang-switch {
  display: inline-flex;
  padding: 0.2rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 100px;
}

.lang-btn {
  min-width: 2.5rem;
  padding: 0.35rem 0.7rem;
  border: none;
  border-radius: 100px;
  background: transparent;
  color: var(--color-text-muted);
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

.lang-btn:hover,
.lang-btn:focus-visible {
  color: var(--color-accent);
}

.lang-btn.is-active {
  background: var(--color-accent);
  color: #fff;
}

.nav-logo {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 400;
}

.nav-menu {
  display: flex;
  gap: 2rem;
}

.nav-menu a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition);
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* ── Hero ──────────────────────────────────────────────────── */
.hero {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 3rem;
  width: min(100% - 2.5rem, var(--max-width));
  margin-inline: auto;
  padding: 5rem 0 6rem;
  min-height: calc(100vh - var(--header-height));
}

.hero-greeting {
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent-warm);
  margin-bottom: 0.75rem;
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2.25rem, 5.5vw, 3.75rem);
  font-weight: 400;
  line-height: 1.1;
  margin-bottom: 1rem;
}

.hero-nickname {
  font-style: italic;
}

.hero-credential {
  font-family: var(--font-sans);
  font-size: 0.55em;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.hero-tagline {
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--color-accent);
  max-width: 42ch;
  margin-bottom: 1.25rem;
}

.expertise-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.expertise-tags li {
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 0.35rem 0.85rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 100px;
  color: var(--color-text-muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  padding: 0.85rem 1.75rem;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: 100px;
  transition: background var(--transition), color var(--transition), transform var(--transition);
}

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

.btn-primary:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border: 1.5px solid var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-text);
}

.hero-visual {
  display: flex;
  justify-content: center;
}

.hero-avatar {
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: var(--color-surface);
  border: 3px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.contact-card-placeholder {
  cursor: default;
  opacity: 0.75;
}

.contact-card-placeholder:hover {
  box-shadow: none;
  border-color: var(--color-border);
}

/* ── About ─────────────────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.about-lead {
  font-family: var(--font-serif);
  font-size: clamp(1.35rem, 2.5vw, 1.75rem);
  line-height: 1.45;
  color: var(--color-text);
}

.about-details p {
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}

.about-facts {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.about-facts li {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.about-facts strong {
  display: inline-block;
  min-width: 6rem;
  color: var(--color-text);
  font-weight: 500;
}

/* ── Credentials & diplomas ─────────────────────────────────── */
.credentials-subtitle {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 400;
  margin-bottom: 1rem;
}

.credentials-subtitle + .credentials-badges {
  margin-bottom: 2.5rem;
}

.diplomas-grid + .credentials-subtitle,
.publications-grid + .credentials-subtitle {
  margin-top: 2.5rem;
}

.credentials-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.credentials-badges li {
  padding: 0.65rem 1.15rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 100px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-accent);
}

.diplomas-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 420px));
  gap: 1.5rem;
}

.diploma-card {
  margin: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: box-shadow var(--transition), transform var(--transition);
}

.diploma-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.diploma-image-link {
  display: block;
  background: #0f172a;
}

.diploma-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: center top;
}

.diploma-card:not(.diploma-card-portrait) img {
  aspect-ratio: auto;
  max-height: 200px;
  object-fit: contain;
  object-position: center;
}

.diploma-card-portrait img {
  aspect-ratio: auto;
  max-height: 200px;
  object-fit: contain;
  object-position: center;
}

.diploma-caption {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1.25rem 1.5rem 1.5rem;
}

.diploma-title {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  color: var(--color-text);
}

.diploma-subtitle {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-accent);
}

.diploma-meta,
.diploma-school,
.diploma-author {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.diploma-link {
  margin-top: 0.5rem;
}

/* ── Skills ────────────────────────────────────────────────── */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
}

.skill-card {
  background: var(--color-surface);
  padding: 1.75rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  transition: box-shadow var(--transition), transform var(--transition);
}

.skill-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.skill-card h3 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 400;
  margin-bottom: 0.5rem;
}

.skill-card p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

/* ── Services ───────────────────────────────────────────────── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}

.service-card {
  background: var(--color-surface);
  padding: 1.75rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-accent);
  transition: box-shadow var(--transition), transform var(--transition);
}

.service-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.service-card h3 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 400;
  margin-bottom: 0.65rem;
  line-height: 1.3;
}

.service-card p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.services-cta {
  text-align: center;
}

/* ── Projects ──────────────────────────────────────────────── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.project-card {
  background: var(--color-surface);
  padding: 2rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--transition), transform var(--transition);
}

.project-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.project-meta {
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

.project-card h3 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 400;
  margin-bottom: 0.75rem;
}

.project-card p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  flex: 1;
  margin-bottom: 1.25rem;
}

.project-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-accent);
  transition: color var(--transition);
}

.project-link:hover {
  color: var(--color-accent-hover);
}

.impact-team-photo {
  margin: 2rem auto 0;
  max-width: 640px;
}

.impact-capstone-photo {
  margin-top: 1.5rem;
}

.impact-team-photo img {
  display: block;
  width: 100%;
  max-height: 280px;
  object-fit: contain;
  object-position: center;
  background: #f1f5f9;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow);
}

.impact-team-photo figcaption {
  margin-top: 0.75rem;
  text-align: center;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* ── Personal & podcast ────────────────────────────────────── */
.section-personal .about-lead {
  margin-bottom: 1.25rem;
}

.personal-layout {
  display: grid;
  grid-template-columns: minmax(260px, 380px) 1fr;
  gap: 2.5rem;
  align-items: start;
}

.personal-photo {
  margin: 0;
}

.personal-photo img {
  width: 100%;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-hover);
  object-fit: cover;
  aspect-ratio: 4 / 5;
}

.personal-photo figcaption {
  margin-top: 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  text-align: center;
}

.personal-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.personal-story p {
  color: var(--color-text-muted);
}

.podcast-card {
  background: var(--color-surface);
  padding: 2rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent-warm);
  box-shadow: var(--shadow);
}

.podcast-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent-warm);
  margin-bottom: 0.75rem;
}

.podcast-card h3 {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 400;
  margin-bottom: 0.35rem;
}

.podcast-tagline {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.podcast-card p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.podcast-card p:last-of-type {
  margin-bottom: 1.25rem;
}

.project-insights-intro + .credentials-subtitle,
.project-insights-grid + .credentials-subtitle {
  margin-top: 2.5rem;
}

/* ── Project insights (Insights section) ────────────────────── */
.project-insights-intro {
  max-width: 52rem;
  margin-bottom: 1.5rem;
  color: var(--color-text-muted);
}

.project-insights-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.project-insight-card {
  background: var(--color-surface);
  padding: 2rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.project-insight-title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 400;
  margin: 0;
  line-height: 1.25;
}

.project-insight-role {
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-accent);
}

.project-insight-text,
.project-insight-outcome {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.project-insight-outcome {
  font-weight: 500;
  color: var(--color-text);
}

.project-insight-photo {
  margin: 0.5rem 0 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.project-insight-image-link {
  display: block;
  border-radius: var(--radius);
  overflow: hidden;
  background: #f1f5f9;
  border: 1px solid var(--color-border);
}

.project-insight-image-link:hover {
  border-color: var(--color-accent);
}

.project-insight-photo img {
  display: block;
  width: 100%;
  max-height: 160px;
  object-fit: contain;
  object-position: center;
}

.project-insight-link {
  align-self: flex-start;
}

/* ── Publications ───────────────────────────────────────────── */
.publications-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 520px));
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.publication-card {
  margin: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.publication-image-link {
  display: block;
  background: #f1f5f9;
  line-height: 0;
}

.publication-card img {
  display: block;
  width: 100%;
  max-height: 200px;
  object-fit: contain;
  object-position: center top;
}

.publication-caption {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1.25rem 1.5rem 1.5rem;
}

.publication-title {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  color: var(--color-text);
}

.publication-subtitle {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-accent);
}

.publication-meta,
.publication-publisher {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.publication-publisher:empty {
  display: none;
}

.publication-text {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin: 0.25rem 0 0;
}

.publication-text:empty {
  display: none;
  margin: 0;
}

.publication-link,
.publication-image-full {
  margin-top: 0.35rem;
}

.publications-grid + .posts-linkedin-title {
  margin-top: 0;
}

/* ── Videos (interview + career) ────────────────────────────── */
.posts-actions + .videos-section {
  margin-top: 2.5rem;
}

.videos-section {
  margin-bottom: 0;
}

.videos-intro {
  max-width: 52rem;
  margin-bottom: 1.5rem;
  color: var(--color-text-muted);
}

.videos-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
  max-width: 920px;
}

.video-card,
.video-card-slot {
  min-width: 0;
}

.video-card {
  margin: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.video-wrap {
  background: #0f172a;
  line-height: 0;
}

.site-video,
.interview-embed {
  display: block;
  width: 100%;
  max-height: 240px;
  object-fit: contain;
  background: #000;
  border: 0;
}

.interview-embed {
  min-height: 240px;
}

.video-caption {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1.25rem 1.5rem 1.5rem;
}

.video-heading {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 400;
  margin: 0;
  line-height: 1.25;
}

.video-detail {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.interview-link.hidden {
  display: none;
}

@media (max-width: 768px) {
  .videos-row {
    grid-template-columns: 1fr;
    max-width: none;
  }
}

.posts-linkedin-title {
  margin-top: 0.5rem;
}

/* ── LinkedIn posts ─────────────────────────────────────────── */
.linkedin-posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.posts-empty {
  grid-column: 1 / -1;
  padding: 2rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  color: var(--color-text-muted);
  text-align: center;
}

.linkedin-post-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  box-shadow: var(--shadow);
}

.linkedin-embed-wrap {
  overflow: hidden;
  border-radius: var(--radius);
}

.linkedin-embed-wrap iframe {
  width: 100%;
  max-width: 504px;
  margin-inline: auto;
  display: block;
  border: 0;
}

.linkedin-post-date {
  display: block;
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

.linkedin-post-excerpt {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  flex: 1;
}

.linkedin-post-link {
  margin-top: auto;
}

.posts-actions {
  text-align: center;
}

/* ── Contact ───────────────────────────────────────────────── */
.contact-container {
  text-align: center;
}

.contact-container .section-title,
.contact-container .section-intro {
  margin-inline: auto;
}

.contact-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.contact-card {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-align: left;
  transition: box-shadow var(--transition), border-color var(--transition);
}

.contact-card:hover {
  box-shadow: var(--shadow);
  border-color: var(--color-accent);
}

.contact-label {
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.contact-value {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-accent);
}

/* ── Footer ────────────────────────────────────────────────── */
.site-footer {
  padding: 2rem 0;
  border-top: 1px solid var(--color-border);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.footer-contact {
  text-align: center;
}

.footer-contact-title {
  margin: 0 0 0.75rem;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.footer-contact-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem 1.75rem;
}

.footer-contact-links a {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 0.15rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  transition: color var(--transition);
}

.footer-contact-links a:hover {
  color: var(--color-accent);
}

.footer-contact-links a span:first-child {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.footer-contact-value {
  font-size: 0.875rem;
  font-weight: 400;
  text-transform: none;
  letter-spacing: normal;
  color: inherit;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--color-border);
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.back-to-top {
  font-weight: 500;
  transition: color var(--transition);
}

.back-to-top:hover {
  color: var(--color-accent);
}

/* ── Animations ────────────────────────────────────────────── */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-content,
.hero-visual {
  animation: fadeUp 0.7s ease both;
}

.hero-visual {
  animation-delay: 0.15s;
}

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-end {
    gap: 0.75rem;
  }

  .nav-menu {
    position: fixed;
    inset: var(--header-height) 0 0 0;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    background: var(--color-bg);
    transform: translateX(100%);
    transition: transform var(--transition);
  }

  .nav-menu.is-open {
    transform: translateX(0);
  }

  .nav-toggle[aria-expanded="true"] span:first-child {
    transform: translateY(4px) rotate(45deg);
  }

  .nav-toggle[aria-expanded="true"] span:last-child {
    transform: translateY(-4px) rotate(-45deg);
  }

  .hero {
    grid-template-columns: 1fr;
    text-align: center;
    padding-top: 3rem;
    min-height: auto;
  }

  .hero-tagline {
    margin-inline: auto;
  }

  .expertise-tags {
    justify-content: center;
  }

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

  .hero-visual {
    order: -1;
  }

  .hero-avatar {
    width: 160px;
    height: 160px;
  }

  .hero-avatar img {
    object-position: center top;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .personal-layout {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .personal-photo {
    max-width: 320px;
    margin-inline: auto;
  }

  .section {
    padding: 3.5rem 0;
  }
}