@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,400;0,500;0,600;1,400;1,500&family=EB+Garamond:ital,wght@0,400;0,500;1,400&family=IBM+Plex+Mono:wght@400;500&display=swap');

/* ── Variables ── */
:root {
  --bg:      #0b0c0f;
  --surface: #111318;
  --border:  #1c2028;
  --text:    #dedad2;
  --muted:   #5a5c62;
  --accent:  #6b9eb8;
  --mono:    'IBM Plex Mono', monospace;
  --serif:   'EB Garamond', Georgia, serif;
  --display: 'Cormorant Garamond', Georgia, serif;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 18px; scroll-behavior: smooth; }

/* ── Topographic texture ── */
body {
  background-color: var(--bg);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='800' height='600'%3E%3Cg fill='none' stroke='%23ffffff' stroke-width='0.4' opacity='0.04'%3E%3Cpath d='M-100,150 Q200,110 400,155 T900,145'/%3E%3Cpath d='M-100,200 Q200,160 400,205 T900,195'/%3E%3Cpath d='M-100,250 Q200,215 400,252 T900,242'/%3E%3Cpath d='M-100,300 Q200,265 400,302 T900,290'/%3E%3Cpath d='M-100,350 Q200,318 400,352 T900,340'/%3E%3Cpath d='M-100,400 Q200,370 400,402 T900,392'/%3E%3Cpath d='M-100,450 Q200,422 400,452 T900,442'/%3E%3Cpath d='M-100,500 Q200,475 400,502 T900,492'/%3E%3Cpath d='M-100,100 Q200,60 400,105 T900,95'/%3E%3Cpath d='M-100,50 Q200,12 400,55 T900,45'/%3E%3Cpath d='M-100,550 Q200,525 400,552 T900,542'/%3E%3Cpath d='M-100,600 Q200,575 400,602 T900,592'/%3E%3C/g%3E%3C/svg%3E");
  background-size: 800px 600px;
  background-repeat: repeat;
  color: var(--text);
  font-family: var(--serif);
  min-height: 100vh;
  line-height: 1.7;
}

/* ── Layout ── */
.container {
  max-width: 780px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ── Navigation ── */
nav {
  padding: 2.2rem 0 2rem;
  border-bottom: 1px solid var(--border);
}

nav .container {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
}

.nav-links a {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s;
}

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

/* ── Main content ── */
main {
  padding: 5rem 0 6rem;
}

/* ── Home: hero ── */
.hero {
  margin-bottom: 5rem;
}

.hero-label {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
  display: block;
}

.hero-tagline {
  margin-bottom: 1.8rem;
  font-family: var(--serif);
  font-size: 0.95rem;
  font-style: italic;
  line-height: 1.6;
  color: var(--muted);
  max-width: 580px;
}

.hero-line {
  font-family: var(--display);
  font-size: 2.6rem;
  font-weight: 500;
  line-height: 1.25;
  color: var(--text);
  max-width: 680px;
}

.hero-line em {
  font-style: italic;
  color: var(--accent);
}

.hero-sub {
  margin-top: 1.8rem;
  font-family: var(--serif);
  font-size: 1rem;
  line-height: 1.8;
  color: var(--muted);
  max-width: 580px;
}

/* ── Capabilities ── */
.capabilities-label {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 2rem;
  display: block;
}

.capabilities {
  margin-bottom: 5rem;
}

.capability {
  border-top: 1px solid var(--border);
}

.capability:last-child {
  border-bottom: 1px solid var(--border);
}

.capability-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 1.8rem 0;
  cursor: pointer;
  list-style: none;
  user-select: none;
  gap: 1rem;
}

.capability-header::-webkit-details-marker { display: none; }

.capability-header:hover .capability-title {
  color: var(--accent);
}

.capability-title {
  font-family: var(--display);
  font-size: 1.45rem;
  font-weight: 500;
  color: var(--text);
  line-height: 1.3;
  transition: color 0.2s;
}

.capability[open] .capability-title {
  color: var(--accent);
}

.capability-toggle {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--accent);
  flex-shrink: 0;
}

.capability-toggle::before { content: '+'; }
.capability[open] .capability-toggle::before { content: '−'; }

.capability-body {
  font-family: var(--serif);
  font-size: 1rem;
  line-height: 1.8;
  color: var(--muted);
  max-width: 580px;
  padding-bottom: 1.8rem;
}

/* ── Essay cards ── */
.essays-label {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 2rem;
  display: block;
}

.essays {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.essay-card {
  display: block;
  padding: 1.8rem 0;
  border-top: 1px solid var(--border);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s;
}

.essay-card:last-child {
  border-bottom: 1px solid var(--border);
}

.essay-card:hover {
  border-color: var(--accent);
}

.essay-card:hover .essay-title {
  color: var(--accent);
}

.essay-meta {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.5rem;
}

.essay-title {
  font-family: var(--display);
  font-size: 1.45rem;
  font-weight: 500;
  color: var(--text);
  line-height: 1.3;
  transition: color 0.2s;
}

.essay-arrow {
  display: inline-block;
  margin-top: 0.6rem;
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: var(--accent);
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity 0.2s, transform 0.2s;
}

.essay-card:hover .essay-arrow {
  opacity: 1;
  transform: translateX(0);
}

.engage {
  border-top: 1px solid var(--border);
  padding: 2.8rem 0 3rem;
}

.engage-text {
  font-family: var(--serif);
  font-size: 1rem;
  font-style: italic;
  line-height: 1.8;
  color: var(--muted);
  max-width: 580px;
}

.engage-link {
  color: var(--accent) !important;
  text-decoration: none;
  white-space: nowrap;
  margin-left: 0.4em;
  transition: color 0.2s;
}

.engage-link:hover { color: var(--text) !important; }

.essays-more {
  text-align: right;
  padding-top: 1.8rem;
}

.essays-more-link {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}

.essays-more-link:hover { color: var(--text); }

/* ── About page ── */
.page-header {
  margin-bottom: 3.5rem;
}

.page-label {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.2rem;
  display: block;
}

.page-title.coming-soon {
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-title {
  font-family: var(--display);
  font-size: 2.2rem;
  font-weight: 500;
  color: var(--text);
  line-height: 1.2;
}

.prose p {
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--text);
  margin-bottom: 1.6rem;
  max-width: 660px;
}

.prose p:last-child {
  margin-bottom: 0;
}

.prose strong {
  font-weight: 500;
  color: var(--text);
}

/* ── Prose links ── */
.prose a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid color-mix(in srgb, var(--accent) 35%, transparent);
  transition: border-color 0.2s;
}
.prose a:hover {
  border-bottom-color: var(--accent);
}

/* ── Figures ── */
.figure {
  margin: 2.5rem 0;
}
.figure img {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--border);
}
.figure .figure-note {
  margin-top: 0;
  border-top: none;
}

/* ── Essay pages ── */
.essay-subtitle {
  font-family: var(--serif);
  font-size: 1.05rem;
  font-style: italic;
  color: var(--muted);
  margin-top: 1rem;
  line-height: 1.7;
  max-width: 620px;
}

.prose h2 {
  font-family: var(--display);
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--text);
  margin-top: 3.2rem;
  margin-bottom: 1.2rem;
  line-height: 1.3;
}

.prose h3 {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-top: 2.4rem;
  margin-bottom: 1rem;
}

.figure-note {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  border-left: 1px solid var(--border);
  padding: 0.6rem 1rem;
  margin: 2rem 0;
}

.essay-nav {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.essay-nav-link {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}

.essay-nav-link:hover { color: var(--text); }

/* ── Contact page ── */
.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
}

.contact-item {
  display: block;
  text-decoration: none;
  transition: color 0.2s;
}

.contact-name-link {
  font-family: var(--display);
  font-size: 1.8rem;
  font-weight: 500;
  color: var(--text);
}

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

.contact-linkedin {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent) !important;
}

.contact-linkedin:hover { color: var(--text) !important; }

.contact-name {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 3rem;
  display: block;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.6rem;
  max-width: 520px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.form-group label {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}

.form-group input,
.form-group textarea {
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  font-family: var(--serif);
  font-size: 1rem;
  padding: 0.5rem 0;
  outline: none;
  transition: border-color 0.2s;
  width: 100%;
}

.form-group input:focus,
.form-group textarea:focus {
  border-bottom-color: var(--accent);
}

.form-group textarea {
  resize: none;
  height: 100px;
  line-height: 1.6;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--muted);
  opacity: 0.5;
}

.form-submit {
  margin-top: 0.5rem;
  align-self: flex-start;
}

.btn {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  background: transparent;
  border: 1px solid var(--accent);
  padding: 0.7rem 1.6rem;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}

.btn:hover {
  background: var(--accent);
  color: var(--bg);
}

/* ── Mobile ── */
@media (max-width: 600px) {
  html { font-size: 16px; }

  nav .container {
    flex-direction: column;
    gap: 1.2rem;
    align-items: flex-start;
  }

  .nav-links { gap: 1.6rem; }

  main { padding: 3rem 0 4rem; }

  .hero { margin-bottom: 3rem; }

  .hero-line { font-size: 1.9rem; }

  .page-title { font-size: 1.7rem; }

  footer .container {
    flex-direction: column;
    gap: 0.4rem;
  }

  .essay-title { font-size: 1.25rem; }

  .contact-form { max-width: 100%; }
}

/* ── Desktop spacing ── */
@media (min-width: 601px) {
  .hero { margin-bottom: 3.5rem; }
  .capabilities-label { margin-bottom: 3rem; }
  .capability-body { padding-bottom: 3rem; }
  .engage { padding-bottom: 5rem; }
  .essays-label { margin-top: 0; }
}

/* ── Footer ── */
footer {
  border-top: 1px solid var(--border);
  padding: 1.8rem 0;
}

footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-text {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
}