@media screen and (max-width: 1280px) {
  .hero {
    padding-inline: clamp(24px, 5vw, 60px);
  }

  .hero-shade {
    background:
      linear-gradient(90deg, rgba(8, 8, 8, 0.62), rgba(8, 8, 8, 0.24)),
      linear-gradient(0deg, rgba(8, 8, 8, 0.72), rgba(8, 8, 8, 0.08) 48%);
  }

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

@media screen and (max-width: 1020px) {
  .paper-feature {
    grid-template-columns: 1fr;
  }

  .paper-figure {
    border-bottom: 1px solid var(--line);
    border-right: 0;
  }

  .paper-figure img {
    margin-inline: auto;
    width: min(100%, 400px);
  }
}

@media screen and (max-width: 900px) {
  .section-intro,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .section-intro {
    gap: 14px;
  }

  .section-intro p {
    max-width: 640px;
  }

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

  .contact-copy {
    max-width: 720px;
  }
}

@media screen and (max-width: 820px) {
  html {
    scroll-padding-top: 66px;
  }

  main section[id] {
    scroll-margin-top: 66px;
  }

  .nav {
    height: 66px;
    padding-inline: 20px;
  }

  .brand-glyph {
    height: 32px;
    width: 32px;
  }

  .menu-toggle {
    display: inline-flex;
    position: relative;
    z-index: 31;
  }

  .nav-links {
    align-content: center;
    background: rgba(16, 16, 16, 0.98);
    color: #ffffff;
    display: grid;
    gap: 18px;
    inset: 0;
    justify-items: center;
    min-height: 100dvh;
    opacity: 0;
    overflow-y: auto;
    padding: 96px 24px 40px;
    pointer-events: none;
    position: fixed;
    transform: translateY(-8px);
    transition: opacity 180ms ease, transform 180ms ease;
    z-index: 30;
  }

  .site-header.scrolled .nav-links {
    color: #ffffff;
  }

  .nav-links.open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .nav-links a {
    font-family: var(--serif);
    font-size: clamp(2rem, 6vw, 3rem);
    font-weight: 400;
    line-height: 1;
    text-transform: none;
  }

  .hero {
    min-height: 100svh;
    padding: 94px 24px 32px;
  }

  .hero-avatar {
    align-self: start;
    margin-bottom: 4px;
    position: relative;
    right: auto;
    top: auto;
    width: 112px;
  }

  .hero h1 {
    font-size: clamp(2.75rem, 6vw, 3.25rem);
  }

  .hero-statement {
    font-size: 1.08rem;
    max-width: 650px;
  }

  .opening-strip,
  .section {
    padding-inline: 24px;
  }

  .photo-strip {
    padding-inline: 24px;
  }

  .education-card {
    grid-template-columns: 1fr;
  }
}

@media screen and (max-width: 640px) {
  .brand-name {
    display: none;
  }

  .nav {
    padding-inline: 18px;
  }

  .hero {
    gap: 0;
    min-height: 100svh;
    padding: 84px 18px 28px;
  }

  .hero-avatar {
    margin-bottom: 18px;
    width: 96px;
  }

  .eyebrow {
    font-size: 0.68rem;
    line-height: 1.45;
    margin-bottom: 14px;
    max-width: 34ch;
  }

  .hero h1 {
    font-size: clamp(2.2rem, 9vw, 2.7rem);
    line-height: 0.92;
  }

  .hero h1 span {
    display: block;
  }

  .hero-statement {
    font-size: 1rem;
    line-height: 1.5;
    margin-top: 20px;
  }

  .hero-intent {
    font-size: 0.92rem;
    line-height: 1.45;
    margin-top: 14px;
  }

  .hero-actions,
  .contact-actions {
    display: grid;
    gap: 10px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    width: 100%;
  }

  .hero-actions {
    margin-top: 24px;
  }

  .button {
    font-size: 0.72rem;
    min-height: 50px;
    padding: 8px 12px;
    width: 100%;
  }

  .button-stacked {
    min-height: 50px;
  }

  .photo-strip {
    gap: 8px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    padding: 16px 18px 0;
  }

  .photo-strip figure,
  .photo-strip figure:nth-child(2) {
    aspect-ratio: 3 / 4;
    grid-column: auto;
    height: auto;
  }

  .section {
    padding: 52px 18px;
  }

  .section-label {
    gap: 12px;
    margin-bottom: 26px;
    padding-top: 12px;
  }

  .section-label span {
    height: 28px;
    min-width: 28px;
  }

  .section-intro {
    gap: 12px;
    margin-bottom: 28px;
  }

  .section-intro h2,
  .contact-layout h2 {
    font-size: clamp(1.95rem, 8.5vw, 2.4rem);
    line-height: 1;
  }

  .section-intro p,
  .contact-copy p {
    font-size: 0.96rem;
    line-height: 1.6;
  }

  .news-item {
    gap: 14px;
    grid-template-columns: 76px minmax(0, 1fr);
    padding: 15px 0;
  }

  .news-item time {
    font-size: 0.68rem;
  }

  .news-item p {
    font-size: 0.92rem;
  }

  .paper-feature {
    width: 100%;
  }

  .paper-figure {
    padding: 16px;
  }

  .paper-figure img {
    width: 100%;
  }

  .paper-copy {
    padding: 22px 18px 24px;
  }

  .paper-venue {
    font-size: 0.68rem;
    line-height: 1.45;
    margin-bottom: 12px;
  }

  .paper-copy h3 {
    font-size: clamp(1.35rem, 5vw, 1.55rem);
    line-height: 1.06;
    overflow-wrap: anywhere;
  }

  .paper-authors {
    font-size: 0.82rem;
    line-height: 1.55;
    margin-top: 14px;
  }

  .paper-copy > p:not(.paper-venue):not(.paper-authors) {
    font-size: 0.94rem;
    line-height: 1.6;
    margin-top: 16px;
  }

  .paper-links {
    flex-wrap: wrap;
    gap: 12px 20px;
    margin-top: 20px;
  }

  .experience-grid {
    gap: 12px;
    grid-template-columns: 1fr;
  }

  .experience-card,
  .experience-card.feature {
    display: block;
    grid-column: auto;
    min-height: 0;
    padding: 22px 20px;
  }

  .experience-card h3 {
    font-size: 1.48rem;
    line-height: 1.08;
    margin-top: 26px;
  }

  .experience-card p:last-child {
    font-size: 0.94rem;
    line-height: 1.6;
    margin-top: 12px;
  }

  .experience-time,
  .education-time {
    font-size: 0.68rem;
    line-height: 1.5;
  }

  .education-card {
    gap: 12px;
    padding: 24px 20px;
  }

  .education-card h2 {
    font-size: 2.1rem;
    line-height: 1;
  }

  .education-program {
    font-size: 1rem;
  }

  .education-meta {
    display: grid;
    gap: 6px;
    margin-top: 4px;
    padding-top: 14px;
  }

  .service-item {
    padding: 16px 0;
  }

  .service-heading {
    font-size: 0.68rem;
  }

  .service-item a {
    font-size: 1.08rem;
  }

  .contact-layout {
    gap: 22px;
  }

  .contact-actions {
    margin-top: 22px;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
    justify-content: center;
    min-height: 104px;
    padding: 24px 18px;
  }
}

@media screen and (max-width: 360px) {
  .hero h1 {
    font-size: 2.2rem;
  }

  .hero-actions,
  .contact-actions {
    grid-template-columns: 1fr;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}