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

:root {
  --bg: #f3efe8;
  --surface: rgba(255, 255, 255, 0.78);
  --surface-strong: rgba(255, 255, 255, 0.94);
  --surface-border: rgba(19, 18, 17, 0.12);
  --text: #161311;
  --muted: #605851;
  --accent: #1a1715;
  --accent-soft: #efe7de;
  --success: #84c8a0;
  --shadow-soft: 0 18px 40px rgba(20, 16, 12, 0.08);
  --shadow-card: 0 12px 30px rgba(26, 22, 18, 0.06);
  --radius-xl: 3.2rem;
  --radius-lg: 2.4rem;
  --radius-md: 1.6rem;
  --radius-sm: 999px;
  --space-2: 0.8rem;
  --space-3: 1.2rem;
  --space-4: 1.6rem;
  --space-5: 2rem;
  --space-6: 2.4rem;
  --space-8: 3.2rem;
  --space-10: 4rem;
  --space-12: 4.8rem;
  --space-16: 6.4rem;
  --space-20: 8rem;
  --max-width: 124rem;
}

html {
  font-size: 62.5%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.75), transparent 30%),
    linear-gradient(180deg, #f8f5ef 0%, var(--bg) 100%);
  color: var(--text);
  font-family: "poppins-regular", sans-serif;
  font-size: 1.7rem;
  line-height: 1.7;
}

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

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

button,
a,
input {
  font: inherit;
}

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

.site-shell {
  width: min(calc(100% - 3.2rem), var(--max-width));
  margin: 0 auto;
  padding: 2.4rem 0 4.8rem;
}

.site-header {
  position: sticky;
  top: 1.6rem;
  z-index: 20;
  margin-bottom: var(--space-10);
}

.nav-frame {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  padding: 1.6rem 2rem;
  background: var(--surface-strong);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(12px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 1.4rem;
  min-width: 0;
}

.brand-mark {
  width: 5.6rem;
  height: 5.6rem;
  flex: 0 0 5.6rem;
}

.brand-copy {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.brand-copy strong {
  font-family: "poppins-semibold", sans-serif;
  font-size: 1.7rem;
  line-height: 1.2;
}

.brand-copy small {
  color: var(--muted);
  font-size: 1.25rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 2.4rem;
  justify-content: center;
  flex: 1 1 auto;
}

.site-nav a {
  position: relative;
  padding: 0.4rem 0;
  color: var(--muted);
  font-family: "poppins-medium", sans-serif;
  white-space: nowrap;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.3rem;
  width: 100%;
  height: 0.2rem;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav a.is-active {
  color: var(--text);
}

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

.header-actions,
.hero-actions,
.contact-actions {
  display: flex;
  align-items: center;
  gap: 1.2rem;
}

.nav-toggle {
  display: none;
  padding: 1rem 1.4rem;
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  font-family: "poppins-medium", sans-serif;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 5.2rem;
  padding: 0 2rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  white-space: nowrap;
  transition:
    transform 180ms ease,
    background-color 180ms ease,
    color 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button-primary {
  background: var(--accent);
  color: #fffdf9;
  box-shadow: var(--shadow-card);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: #000000;
}

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

.button-secondary:hover,
.button-secondary:focus-visible {
  background: rgba(255, 255, 255, 0.72);
}

.text-link {
  color: var(--text);
  text-decoration: underline;
  text-underline-offset: 0.2rem;
}

.section-block {
  scroll-margin-top: 11rem;
  margin-bottom: var(--space-20);
}

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

.status-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.6rem;
  margin-bottom: var(--space-8);
  flex-wrap: wrap;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 1.2rem;
  min-height: 5.6rem;
  padding: 0 1.8rem;
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  box-shadow: var(--shadow-card);
  color: var(--text);
  font-family: "poppins-medium", sans-serif;
}

.pill-available::before {
  content: "";
  width: 1.2rem;
  height: 1.2rem;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 0.8rem rgba(132, 200, 160, 0.18);
}

.hero-grid,
.contact-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(32rem, 0.95fr);
  gap: var(--space-8);
}

.hero-copy {
  min-width: 0;
}

.eyebrow {
  margin: 0 0 1.2rem;
  color: var(--muted);
  font-size: 1.25rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  color: var(--text);
  text-wrap: balance;
}

h1 {
  font-family: "lora-regular", serif;
  font-size: clamp(4.4rem, 6vw, 8.8rem);
  line-height: 0.96;
  letter-spacing: -0.04em;
}

h2 {
  font-family: "lora-regular", serif;
  font-size: clamp(2.8rem, 3.4vw, 5rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
}

h3 {
  font-family: "poppins-semibold", sans-serif;
  font-size: 2.2rem;
  line-height: 1.2;
}

.hero-lead,
.hero-summary,
.section-heading p,
.resume-card p,
.project-card p,
.education-card p,
.research-card p,
.profile-card p,
.contact-heading p {
  color: var(--muted);
  text-wrap: pretty;
}

.hero-lead {
  max-width: 58rem;
  margin: 2.4rem 0 1.2rem;
  font-size: 1.95rem;
}

.hero-summary {
  max-width: 62rem;
  margin: 0 0 2.8rem;
}

.signal-grid,
.card-grid,
.contact-list {
  display: grid;
  gap: var(--space-5);
}

.signal-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: var(--space-8);
}

.signal-card,
.project-card,
.resume-card,
.education-card,
.research-card,
.skills-card,
.profile-card,
.contact-card {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

.signal-card,
.project-card,
.education-card,
.research-card,
.skills-card {
  padding: 2.4rem;
}

.signal-label,
.card-meta {
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: 1.2rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.signal-card h2 {
  margin-bottom: 1rem;
  font-size: 2.4rem;
}

.profile-card {
  overflow: hidden;
}

.profile-image {
  aspect-ratio: 4 / 4.6;
  width: 100%;
  object-fit: cover;
  background: #d7d0c8;
}

.profile-card-body {
  padding: 2.4rem;
}

.profile-kicker {
  margin: 0 0 0.8rem;
  color: var(--muted);
  font-size: 1.2rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.profile-card h2 {
  margin-bottom: 1.2rem;
  font-size: 3.2rem;
}

.profile-list {
  margin: 2rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1rem;
  color: var(--muted);
}

.section-heading {
  display: grid;
  gap: 1.2rem;
  max-width: 74rem;
  margin-bottom: var(--space-8);
}

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

.project-card ul {
  margin: 1.6rem 0 0;
  padding-left: 1.8rem;
  color: var(--muted);
}

.project-card li + li {
  margin-top: 0.8rem;
}

.timeline-list {
  display: grid;
  gap: var(--space-5);
}

.resume-card {
  padding: 2.8rem;
}

.resume-card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 1.6rem;
}

.role-context {
  margin: 0.6rem 0 0;
  color: var(--muted);
  font-family: "poppins-medium", sans-serif;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 3.8rem;
  padding: 0 1.4rem;
  border-radius: var(--radius-sm);
  background: var(--accent-soft);
  color: var(--text);
  font-size: 1.3rem;
  white-space: nowrap;
}

.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.chip-list span {
  display: inline-flex;
  align-items: center;
  min-height: 3.8rem;
  padding: 0 1.4rem;
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.72);
  color: var(--text);
  font-size: 1.4rem;
}

.contact-card {
  padding: 2.8rem;
}

.contact-list {
  grid-template-columns: 1fr;
  margin-bottom: 2rem;
  gap: 1.2rem;
}

.contact-list a {
  display: grid;
  grid-template-columns: 10rem minmax(0, 1fr);
  align-items: center;
  gap: 1.6rem;
  padding: 1.5rem 1.8rem;
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.62);
  min-height: 0;
  transition: transform 180ms ease, border-color 180ms ease;
}

.contact-list a:hover,
.contact-list a:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(26, 23, 21, 0.22);
}

.contact-list span {
  display: block;
  color: var(--muted);
  font-size: 1.2rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  white-space: nowrap;
}

.contact-list strong {
  display: block;
  margin-top: 0;
  font-family: "poppins-medium", sans-serif;
  font-size: clamp(1.35rem, 1vw, 1.85rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  white-space: nowrap;
  word-break: normal;
  overflow-wrap: normal;
  max-width: 100%;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.6rem;
  padding: 2rem 0 1rem;
  color: var(--muted);
  border-top: 1px solid rgba(19, 18, 17, 0.08);
}

.reveal {
  opacity: 0;
  transform: translateY(1.6rem);
  transition: opacity 320ms ease, transform 320ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

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

@media (max-width: 1080px) {
  .nav-frame {
    flex-wrap: wrap;
  }

  .site-nav {
    order: 3;
    width: 100%;
    justify-content: flex-start;
    padding-top: 0.6rem;
    border-top: 1px solid rgba(19, 18, 17, 0.08);
  }

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

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

@media (max-width: 820px) {
  .site-shell {
    width: min(calc(100% - 2rem), var(--max-width));
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 1.2rem;
  }

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

  .header-actions {
    width: 100%;
    justify-content: flex-start;
  }

  .project-grid,
  .education-grid,
  .research-grid,
  .skills-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 640px) {
  body {
    font-size: 1.6rem;
  }

  .site-header {
    top: 1rem;
  }

  .nav-frame {
    gap: 1.4rem;
    padding: 1.4rem;
  }

  .brand-copy small {
    display: none;
  }

  .site-nav a,
  .button {
    white-space: normal;
  }

  .header-actions,
  .hero-actions,
  .contact-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .button {
    width: 100%;
  }

  h1 {
    font-size: clamp(3.8rem, 12vw, 6rem);
    line-height: 0.98;
  }

  .hero-lead {
    max-width: 100%;
    font-size: 1.75rem;
  }

  .status-row {
    align-items: stretch;
  }

  .pill {
    width: 100%;
    justify-content: center;
  }

  .resume-card,
  .contact-card {
    padding: 2.2rem;
  }

  .contact-list a {
    grid-template-columns: 8.2rem minmax(0, 1fr);
    gap: 1.2rem;
    padding: 1.3rem 1.4rem;
  }

  .contact-list strong {
    font-size: 1.45rem;
  }

  .resume-card-head {
    flex-direction: column;
  }

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

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

  .reveal,
  .reveal.is-visible,
  .button,
  .contact-list a,
  .site-nav a::after {
    transition: none;
  }

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