@font-face {
  font-family: "Newsreader";
  src: url("assets/fonts/Newsreader.ttf") format("truetype");
  font-display: swap;
}

@font-face {
  font-family: "Libre Franklin";
  src: url("assets/fonts/LibreFranklin.ttf") format("truetype");
  font-display: swap;
}

@font-face {
  font-family: "Libre Franklin";
  src: url("assets/fonts/LibreFranklin-Italic.ttf") format("truetype");
  font-style: italic;
  font-display: swap;
}

:root {
  --bg: #f4f2ec;
  --bg-soft: #ebe7dc;
  --surface: #fbfaf6;
  --surface-raised: #ffffff;
  --ink: #282a24;
  --heading: #1d1f1a;
  --muted: #6b6f64;
  --line: #d6d0c1;
  --line-strong: #bfb5a1;
  --accent: #66715d;
  --accent-strong: #485241;
  --accent-warm: #a69c83;
  --focus: #5b6e43;
  --shadow: 0 22px 70px rgba(43, 39, 31, 0.1);
  --font-display: "Newsreader", Georgia, serif;
  --font-body: "Libre Franklin", Arial, sans-serif;
  --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: 4.5rem;
  --radius-sm: 4px;
  --radius-md: 8px;
  --max: 1160px;
  --ease: cubic-bezier(0.2, 0.9, 0.2, 1);
}

:root[data-theme="dark"] {
  --bg: #171914;
  --bg-soft: #20231d;
  --surface: #1e211b;
  --surface-raised: #25291f;
  --ink: #e9e5da;
  --heading: #f7f2e7;
  --muted: #b7b2a4;
  --line: #3a3e33;
  --line-strong: #5c6352;
  --accent: #b7c0a8;
  --accent-strong: #d5dbc9;
  --accent-warm: #c0b48f;
  --focus: #d4ddb7;
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.66;
}

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

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

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

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

button {
  font: inherit;
}

.skip-link {
  position: fixed;
  left: var(--space-4);
  top: var(--space-4);
  z-index: 30;
  transform: translateY(-160%);
  background: var(--heading);
  color: var(--bg);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: 72px;
  padding: var(--space-4) clamp(var(--space-4), 4vw, var(--space-7));
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 91%, transparent);
  backdrop-filter: blur(16px);
}

.brand,
.header-actions,
.site-nav,
.hero-actions,
.contact-actions,
.profile-tags {
  display: flex;
  align-items: center;
}

.brand {
  gap: var(--space-3);
  color: var(--heading);
  font-weight: 760;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: var(--heading);
  color: var(--bg);
  font-family: var(--font-display);
  font-size: 1rem;
  line-height: 1;
}

.header-actions {
  gap: var(--space-4);
}

.site-nav {
  gap: var(--space-2);
}

.site-nav a {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  padding: 0 var(--space-2);
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 650;
}

.theme-toggle {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.44rem 0.72rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
  transition: transform 180ms var(--ease), border-color 180ms var(--ease), background 180ms var(--ease);
}

.theme-toggle:hover {
  transform: translateY(-1px);
  border-color: var(--accent);
}

.theme-dot {
  width: 12px;
  height: 12px;
  border: 1px solid var(--accent-strong);
  border-radius: 50%;
  background: var(--accent);
}

.theme-label {
  font-size: 0.78rem;
  font-weight: 720;
}

.section-band {
  border-bottom: 1px solid var(--line);
  max-width: 100%;
  overflow-x: hidden;
}

#research,
#projects,
#cv,
#contact {
  scroll-margin-top: 94px;
}

.section-inner,
.hero-grid {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.hero {
  min-height: auto;
  display: grid;
  align-items: center;
  padding: clamp(1.75rem, 3.5vw, 3.1rem) 0 clamp(1.65rem, 3.2vw, 2.55rem);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 700px) minmax(250px, 300px);
  gap: clamp(var(--space-6), 6vw, 5rem);
  align-items: start;
  justify-content: space-between;
}

.hero-copy,
.profile-card,
.section-heading,
.section-prose,
.stack-item,
.project-item,
.timeline,
.skills-panel,
.contact-panel {
  min-width: 0;
}

.kicker,
.eyebrow {
  margin: 0 0 var(--space-3);
  color: var(--accent-strong);
  font-size: 0.78rem;
  font-weight: 780;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
  max-width: 100%;
  overflow-wrap: break-word;
}

h1,
h2 {
  color: var(--heading);
  font-family: var(--font-display);
  font-weight: 520;
  letter-spacing: 0;
}

h1 {
  max-width: 680px;
  margin-bottom: var(--space-3);
  font-size: clamp(3.65rem, 5.1vw, 5rem);
  line-height: 0.93;
}

h1 span {
  display: block;
  color: var(--accent);
  font-style: italic;
  white-space: nowrap;
}

h2 {
  max-width: 780px;
  margin-bottom: var(--space-6);
  font-size: clamp(2rem, 3vw, 3rem);
  line-height: 1.04;
}

h3 {
  margin-bottom: var(--space-2);
  color: var(--heading);
  font-size: 1.08rem;
  line-height: 1.25;
}

.headline {
  max-width: 620px;
  margin-bottom: var(--space-3);
  color: var(--heading);
  font-size: clamp(1.12rem, 1.55vw, 1.3rem);
  line-height: 1.34;
}

.lede {
  max-width: 620px;
  margin-bottom: var(--space-5);
  color: var(--muted);
  font-size: 1rem;
}

.hero-actions,
.contact-actions {
  gap: var(--space-3);
  flex-wrap: wrap;
}

.hero-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  max-width: 620px;
  margin: var(--space-5) 0 0;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line);
}

.hero-facts div {
  padding: var(--space-3) var(--space-4) var(--space-3) 0;
  border-right: 1px solid var(--line);
}

.hero-facts div:last-child {
  border-right: 0;
}

.hero-facts dt,
.hero-facts dd {
  margin: 0;
}

.hero-facts dt {
  color: var(--accent-strong);
  font-size: 0.72rem;
  font-weight: 780;
  text-transform: uppercase;
}

.hero-facts dd {
  color: var(--heading);
  font-size: 0.9rem;
  font-weight: 720;
}

.button {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.64rem 0.92rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 760;
  transition: transform 180ms var(--ease), background 180ms var(--ease), color 180ms var(--ease), border-color 180ms var(--ease);
}

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

.button.primary {
  border-color: var(--heading);
  background: var(--heading);
  color: var(--bg);
}

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

.button.secondary {
  background: color-mix(in srgb, var(--surface) 76%, transparent);
}

.profile-card {
  position: relative;
  display: grid;
  width: min(300px, 100%);
  justify-self: end;
  align-self: start;
  justify-items: start;
  gap: var(--space-3);
  padding: var(--space-3) 0 var(--space-3) var(--space-5);
  border-left: 1px solid var(--line-strong);
  background: transparent;
  box-shadow: none;
}

.profile-card::before {
  display: none;
}

.portrait-ring {
  position: relative;
  z-index: 1;
  width: 152px;
  aspect-ratio: 1;
  margin: 0;
  padding: 8px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background:
    radial-gradient(circle at center, var(--surface-raised) 0 58%, var(--bg-soft) 59% 100%);
}

.portrait-ring img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  object-position: center 18%;
  filter: saturate(0.82) contrast(0.98) sepia(0.06);
}

.profile-copy {
  position: relative;
  z-index: 1;
  text-align: left;
}

.profile-name {
  margin-bottom: var(--space-2);
  color: var(--heading);
  font-family: var(--font-display);
  font-size: 1.48rem;
  line-height: 1.08;
}

.profile-copy p:not(.profile-name) {
  max-width: 245px;
  margin: 0 0 var(--space-3);
  color: var(--muted);
  font-size: 0.9rem;
}

.profile-tags {
  justify-content: flex-start;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.profile-tags span {
  padding: 0.3rem 0.5rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--accent-strong);
  font-size: 0.72rem;
  font-weight: 700;
}

.section-inner {
  padding: clamp(3rem, 5vw, 4.25rem) 0;
}

.purpose-grid,
.cv-layout,
.contact-layout {
  display: grid;
  grid-template-columns: minmax(240px, 0.54fr) minmax(0, 1fr);
  gap: clamp(var(--space-6), 6vw, var(--space-8));
  align-items: start;
}

.cv-layout {
  grid-template-columns: minmax(240px, 0.46fr) minmax(0, 1fr);
  grid-template-areas:
    "heading timeline"
    "heading skills";
  row-gap: var(--space-5);
}

.cv-layout .section-heading {
  grid-area: heading;
  position: sticky;
  top: 96px;
}

.section-prose,
.contact-panel,
.skills-panel {
  max-width: 720px;
  color: var(--muted);
  font-size: 1.04rem;
}

.stack-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
  border-top: 0;
}

.stack-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  align-content: start;
  padding: var(--space-5);
  border: 1px solid var(--line-strong);
  background: color-mix(in srgb, var(--surface) 82%, transparent);
}

.stack-item p,
.project-item p,
.timeline-item p {
  max-width: 780px;
  margin-bottom: 0;
  color: var(--muted);
}

.item-number {
  color: var(--accent-strong);
  font-family: var(--font-display);
  font-size: 1.4rem;
}

.project-band {
  background: var(--bg-soft);
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
}

.project-item {
  padding: var(--space-5);
  border: 1px solid var(--line-strong);
  background: var(--surface);
}

.project-item .eyebrow {
  margin-bottom: var(--space-3);
  color: var(--accent);
}

.timeline {
  grid-area: timeline;
  border-top: 1px solid var(--line-strong);
}

.timeline-item {
  display: grid;
  grid-template-columns: 112px minmax(0, 1fr);
  gap: var(--space-5);
  padding: var(--space-5) 0;
  border-bottom: 1px solid var(--line);
}

.timeline-item span {
  color: var(--accent-strong);
  font-size: 0.84rem;
  font-weight: 760;
}

.skills-panel {
  grid-area: skills;
  align-self: start;
  padding: var(--space-5);
  border: 1px solid var(--line-strong);
  background: var(--surface);
}

.skills-panel h3 {
  margin-bottom: var(--space-4);
}

.skills-panel ul {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
  margin: 0;
  padding-left: 0;
  list-style: none;
}

.skills-panel li {
  position: relative;
  padding-left: var(--space-4);
}

.skills-panel li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
}

.contact-band {
  background: var(--surface);
}

.contact-panel p {
  margin-bottom: var(--space-5);
}

.site-footer {
  width: min(var(--max), calc(100% - 40px));
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  margin: 0 auto;
  padding: var(--space-5) 0;
  color: var(--muted);
  font-size: 0.84rem;
}

.site-footer p {
  margin: 0;
}

.reveal {
  transform: translateY(16px);
  opacity: 0;
  transition: transform 600ms var(--ease), opacity 600ms var(--ease);
}

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

@media (max-width: 900px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .header-actions {
    width: 100%;
    align-items: flex-start;
    justify-content: space-between;
  }

  .site-nav {
    flex-wrap: wrap;
  }

  .hero {
    min-height: auto;
    padding: var(--space-7) 0;
  }

  .hero-grid,
  .purpose-grid,
  .cv-layout,
  .contact-layout {
    grid-template-columns: 1fr;
    grid-template-areas: none;
  }

  .cv-layout .section-heading,
  .timeline,
  .skills-panel {
    grid-area: auto;
  }

  .cv-layout .section-heading {
    position: static;
  }

  .stack-list {
    grid-template-columns: 1fr;
  }

  .hero-facts {
    grid-template-columns: 1fr;
  }

  .hero-facts div {
    padding-right: 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .hero-facts div:last-child {
    border-bottom: 0;
  }

  .profile-card {
    justify-items: start;
    width: 100%;
    padding: var(--space-5);
    border: 1px solid var(--line-strong);
    background: var(--surface);
  }

  .profile-copy {
    text-align: left;
  }

  .profile-copy p:not(.profile-name),
  .profile-tags {
    justify-content: flex-start;
    margin-left: 0;
    margin-right: 0;
  }

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

  .skills-panel ul {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  body {
    font-size: 15px;
  }

  .section-inner,
  .hero-grid,
  .site-footer {
    width: min(358px, calc(100vw - 32px));
    margin-left: 16px;
    margin-right: 0;
  }

  .site-header {
    width: 100vw;
    max-width: 100vw;
    overflow-x: clip;
    padding: var(--space-4);
  }

  .header-actions {
    gap: var(--space-3);
    flex-wrap: wrap;
  }

  .site-nav a {
    min-height: 36px;
    font-size: 0.82rem;
  }

  .theme-toggle {
    min-height: 36px;
  }

  .theme-label {
    display: none;
  }

  h1 {
    font-size: clamp(3rem, 15vw, 4.2rem);
  }

  h1 span {
    display: block;
  }

  h2 {
    font-size: clamp(2rem, 10vw, 2.7rem);
  }

  .headline {
    font-size: 1.12rem;
  }

  .section-inner {
    padding: var(--space-7) 0;
  }

  .stack-item,
  .timeline-item {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }

  .project-item,
  .skills-panel {
    padding: var(--space-4);
  }

  .profile-card {
    width: 100%;
    max-width: 100%;
    padding: var(--space-5);
  }

  .portrait-ring {
    width: min(220px, 78vw);
  }

  .site-footer {
    flex-direction: column;
  }

  .button,
  .profile-tags span {
    max-width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
  }
}