:root {
  --bg: #f4f0e8;
  --bg-soft: #efe9de;
  --surface: rgba(255, 255, 255, 0.46);
  --surface-strong: rgba(255, 255, 255, 0.72);
  --line: rgba(40, 38, 33, 0.14);
  --line-strong: rgba(40, 38, 33, 0.28);
  --text: #1f1d19;
  --text-muted: #5c564e;
  --accent: #455241;
  --accent-soft: rgba(69, 82, 65, 0.12);
  --accent-warm: #8a775c;
  --shadow: 0 20px 50px rgba(41, 35, 27, 0.08);
  --radius: 24px;
  --radius-small: 16px;
  --container: 1180px;
  --narrow: 760px;
  --transition: 220ms ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Instrument Sans", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(138, 119, 92, 0.1), transparent 34%),
    linear-gradient(180deg, #f7f3eb 0%, var(--bg) 100%);
  line-height: 1.6;
}

body.nav-open {
  overflow: hidden;
}

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

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

button,
input,
textarea,
select {
  font: inherit;
}

.site-frame {
  position: fixed;
  inset: 18px;
  border: 1px solid rgba(41, 35, 27, 0.08);
  pointer-events: none;
  z-index: 0;
}

.container {
  width: min(calc(100% - 40px), var(--container));
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.narrow {
  width: min(100%, var(--narrow));
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(18px);
  background: rgba(244, 240, 232, 0.78);
  border-bottom: 1px solid rgba(41, 35, 27, 0.08);
}

.header-inner {
  min-height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.brand-text {
  display: grid;
  gap: 2px;
}

.brand-name {
  font-family: "Newsreader", serif;
  font-size: 1.625rem;
  font-weight: 500;
  letter-spacing: -0.02em;
}

.footer-brand {
  font-family: "Newsreader", serif;
  font-size: 1.5rem;
  font-weight: 500;
  letter-spacing: -0.02em;
}

.brand-tag {
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 22px;
}

.site-nav a {
  font-size: 0.95rem;
  color: var(--text-muted);
  position: relative;
  transition: color var(--transition);
}

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

.site-nav a.is-active::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -10px;
  width: 100%;
  height: 1px;
  background: var(--text);
}

.nav-toggle {
  display: none;
  width: 48px;
  height: 48px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.44);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 16px;
  height: 1px;
  background: var(--text);
  transition: transform var(--transition), opacity var(--transition);
}

.nav-open .nav-toggle span:first-child {
  transform: translateY(3px) rotate(45deg);
}

.nav-open .nav-toggle span:last-child {
  transform: translateY(-3px) rotate(-45deg);
}

.hero,
.page-hero {
  padding: 108px 0 56px;
}

.page-hero {
  text-align: center;
}

.page-hero h1 {
  font-size: clamp(2.5rem, 5.5vw, 4rem);
}

.about-bio {
  display: grid;
  gap: 18px;
}

.contact-card .contact-links {
  justify-content: center;
}

.empty-state {
  text-align: center;
  color: var(--text-muted);
  font-style: italic;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(320px, 0.8fr);
  gap: 40px;
  align-items: start;
}

.eyebrow,
.section-label,
.card-kicker,
.signal-label,
.panel-label {
  margin: 0 0 14px;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
}

h1,
h2,
h3 {
  margin: 0;
  font-family: "Newsreader", serif;
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1.05;
}

h1 {
  font-size: clamp(3rem, 7vw, 5rem);
  max-width: 20ch;
}

h2 {
  font-size: clamp(1.75rem, 3.4vw, 2.6rem);
  max-width: 28ch;
}

h3 {
  font-size: 1.6rem;
  margin-bottom: 12px;
}

p {
  margin: 0;
  text-wrap: pretty;
}

.hero-intro,
.section-lead {
  margin-top: 18px;
  font-size: 1.18rem;
  line-height: 1.75;
  color: var(--text);
}

.hero-copy h2 {
  margin-top: 48px;
  max-width: none;
  font-size: clamp(1.6rem, 2.8vw, 2.1rem);
}

.hero-copy p {
  margin-top: 18px;
  font-size: 1.08rem;
  line-height: 1.75;
  color: var(--text);
  max-width: 62ch;
}

.hero-copy p.hero-intro {
  font-size: 1.18rem;
  
}
.hero-detail,
.section-lead.compact {
  margin-top: 22px;
  max-width: 62ch;
  color: var(--text-muted);
}

.hero-actions,
.section-actions,
.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition:
    transform var(--transition),
    border-color var(--transition),
    background var(--transition),
    color var(--transition);
}

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

.button-primary {
  background: var(--text);
  color: #f8f4ed;
}

.button-primary:hover {
  background: #10100f;
}

.button-secondary {
  background: rgba(255, 255, 255, 0.42);
  border-color: var(--line-strong);
  color: var(--text);
}

.button-secondary:hover {
  background: rgba(255, 255, 255, 0.68);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.94rem;
  color: var(--accent);
}

.text-link::after {
  content: "↗";
  font-size: 0.9rem;
}

.hero-panel,
.signal-card,
.theme-card,
.paper-card,
.research-panel,
.method-card,
.tool-detail,
.about-panel,
.contact-card,
.stack-item,
.artifact-card,
.log-card {
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.panel-shell,
.signal-card,
.theme-card,
.paper-card,
.research-panel,
.method-card,
.tool-detail,
.about-panel,
.contact-card,
.stack-item {
  padding: 28px;
}

.hero-panel {
  padding: 1px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.68), rgba(255, 255, 255, 0.34)),
    linear-gradient(135deg, rgba(69, 82, 65, 0.12), rgba(138, 119, 92, 0.12));
}

.panel-shell {
  height: 100%;
  border-radius: calc(var(--radius) - 1px);
  background: rgba(255, 255, 255, 0.52);
}

.focus-list,
.detail-list {
  margin: 0;
  padding-left: 18px;
  color: var(--text-muted);
}

.focus-list li,
.detail-list li {
  margin-top: 10px;
}

.panel-status {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid rgba(0, 0, 0, 0.08);
  font-size: 0.92rem;
  color: var(--text-muted);
  font-style: italic;
}

.signal-strip {
  padding: 12px 0 24px;
}

.signal-grid,
.card-grid,
.research-grid,
.methodology-grid,
.collaboration-grid,
.about-grid {
  display: grid;
  gap: 20px;
}

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

.card-grid-four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.research-grid,
.methodology-grid,
.collaboration-grid,
.about-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.section {
  padding: 48px 0 88px;
}

.section-tonal {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.26), rgba(255, 255, 255, 0));
}

.section-head {
  display: grid;
  gap: 14px;
  margin-bottom: 28px;
}

.tool-feature-grid,
.tool-stack {
  display: grid;
  gap: 24px;
}

.tool-feature,
.tool-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.9fr);
  gap: 24px;
  align-items: stretch;
}

.tool-visual,
.embed-shell,
.artifact-media,
.log-media {
  border-radius: var(--radius);
  border: 1px dashed rgba(69, 82, 65, 0.26);
  background:
    linear-gradient(135deg, rgba(69, 82, 65, 0.14), rgba(138, 119, 92, 0.08)),
    rgba(255, 255, 255, 0.32);
  min-height: 260px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  text-align: center;
  color: var(--text-muted);
}

.tool-visual-note {
  min-height: 220px;
}

.embed-shell {
  min-height: 420px;
}

.embed-shell iframe {
  width: 100%;
  min-height: 420px;
  border: 0;
  border-radius: inherit;
  background: rgba(255, 255, 255, 0.72);
}

.embed-shell-small {
  min-height: 280px;
}

.tool-copy {
  align-self: center;
}

.artifact-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.artifact-card {
  overflow: hidden;
}

.artifact-media {
  min-height: 190px;
  border-radius: 0;
  border: 0;
  border-bottom: 1px solid var(--line);
}

.artifact-media img,
.log-media img,
.tool-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.artifact-copy,
.log-copy {
  padding: 22px 24px 24px;
}

.stack-list {
  display: grid;
  gap: 18px;
}

.method-card h2,
.research-panel h2,
.about-panel h2,
.contact-card h2,
.stack-item h3 {
  max-width: none;
}

.card-meta {
  margin-top: 18px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.card-actions {
  display: inline-flex;
  align-items: center;
  gap: 18px;
}

.paper-byline {
  margin: 6px 0 14px;
  font-size: 0.92rem;
  color: var(--text-muted);
  font-style: italic;
}

.masonry-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 20px;
}

.log-card {
  overflow: hidden;
}

.log-card:nth-child(1) {
  grid-column: span 7;
}

.log-card:nth-child(2) {
  grid-column: span 5;
}

.log-card:nth-child(3) {
  grid-column: span 4;
}

.log-card:nth-child(4) {
  grid-column: span 4;
}

.log-card:nth-child(5) {
  grid-column: span 4;
}

.log-media {
  min-height: 260px;
  border-radius: 0;
  border: 0;
  border-bottom: 1px solid var(--line);
}

.log-media-tall {
  min-height: 420px;
}

.collaboration-block {
  padding-top: 34px;
}

.collaboration-block .section-lead + .button {
  margin-top: 24px;
}

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

.site-footer {
  padding: 36px 0 48px;
  border-top: 1px solid rgba(41, 35, 27, 0.08);
}

.footer-inner,
.footer-meta {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 24px;
}

.footer-inner p:not(.footer-brand),
.footer-meta {
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 18px;
}

.footer-meta {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid rgba(41, 35, 27, 0.08);
  font-size: 0.92rem;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 700ms ease,
    transform 700ms ease;
}

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

@media (max-width: 1100px) {
  .card-grid-four,
  .artifact-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .tool-feature,
  .tool-layout,
  .hero-grid,
  .signal-grid,
  .research-grid,
  .methodology-grid,
  .collaboration-grid,
  .about-grid,
  .card-grid-three {
    grid-template-columns: 1fr;
  }

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

  .log-card,
  .log-card:nth-child(1),
  .log-card:nth-child(2),
  .log-card:nth-child(3),
  .log-card:nth-child(4),
  .log-card:nth-child(5) {
    grid-column: span 1;
  }
}

@media (max-width: 820px) {
  .site-frame {
    inset: 10px;
  }

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

  .site-nav {
    position: absolute;
    top: calc(100% + 10px);
    right: 20px;
    left: 20px;
    padding: 18px;
    border-radius: 24px;
    border: 1px solid var(--line);
    background: rgba(249, 246, 239, 0.96);
    box-shadow: var(--shadow);
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }

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

  .site-nav a.is-active::after {
    bottom: -4px;
  }

  .hero,
  .page-hero {
    padding-top: 88px;
  }

  h1 {
    font-size: clamp(2.8rem, 14vw, 4.6rem);
  }

  .hero-intro,
  .section-lead {
    font-size: 1.06rem;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(calc(100% - 24px), var(--container));
  }

  .panel-shell,
  .signal-card,
  .theme-card,
  .paper-card,
  .research-panel,
  .method-card,
  .tool-detail,
  .about-panel,
  .contact-card,
  .stack-item {
    padding: 22px;
  }

  .artifact-grid,
  .masonry-grid {
    grid-template-columns: 1fr;
  }

  .footer-inner,
  .footer-meta {
    flex-direction: column;
  }

  .footer-links {
    justify-content: flex-start;
  }
}