:root {
  --ink: #0E3A3B;
  --ink-soft: #3E6461;
  --paper: #F7F5EE;
  --paper-raised: #EFEDE2;
  --paper-dim: #D2D0CA;
  --teal: #1C6E68;
  --teal-deep: #0E3A3B;
  --teal-mid: #2E8079;
  --rule: #D6DDD8;
  --rule-soft: #E4E8E1;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: 'Fraunces', serif;
  font-weight: 500;
  margin: 0;
  color: var(--ink);
}

.mono { font-family: 'IBM Plex Mono', monospace; }

a { color: inherit; }

::selection { background: var(--teal); color: var(--paper); }

:focus-visible {
  outline: 2px solid var(--teal-deep);
  outline-offset: 3px;
}

.wrap {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 28px;
}

/* ---------- Justified body text ---------- */
p {
  text-align: justify;
  text-justify: inter-word;
  -webkit-hyphens: auto;
  -ms-hyphens: auto;
  hyphens: auto;
}

/* ---------- Top bar ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--teal);
  padding: 22px 0;
}
.topbar .wrap {
  display: flex;
  justify-content: flex-end;
  align-items: baseline;
}
.topbar nav {
  display: flex;
  gap: 26px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.topbar nav a { white-space: nowrap; text-decoration: none; color: var(--paper); border-bottom: 1px solid transparent; padding-bottom: 2px; transition: border-color .15s ease, opacity .15s ease; }
.topbar nav a:hover { border-color: var(--paper); opacity: 0.8; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  padding: 4px;
  color: var(--paper);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
}

@media (max-width: 760px) {
  .topbar .wrap { position: relative; }
  .nav-toggle { display: block; }
  .topbar nav {
    display: none;
    position: absolute;
    top: calc(100% + 22px);
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--teal);
    border-top: 1px solid rgba(247, 245, 238, 0.25);
  }
  .topbar nav.open { display: flex; }
  .topbar nav a { padding: 14px 28px; border-bottom: 1px solid rgba(247, 245, 238, 0.15); }
}

/* ---------- Hero ---------- */
.hero {
  padding: 80px 0 64px;
  border-bottom: 1px solid var(--rule);
}
.hero .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
}
.hero .hero-text {
  flex: 1 1 0%;
  min-width: 0;
  width: 100%;
  container-type: inline-size;
}
.hero .hero-photo {
  flex: 0 0 auto;
  width: 196px;
  height: 196px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--rule);
}
@media (max-width: 620px) {
  .hero .wrap { flex-direction: column-reverse; }
  .hero .hero-photo { width: 120px; height: 120px; }
}
.hero .eyebrow {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 18px;
}
.hero h1 {
  line-height: 1.1;
  letter-spacing: -0.01em;
}
.hero h1 .line {
  display: block;
  white-space: nowrap;
  font-size: clamp(19px, 7.1cqw, 52px);
}
.hero .dek {
  margin-top: 22px;
  max-width: 50ch;
  font-size: 18px;
  color: var(--ink-soft);
}
.hero .cta-row {
  margin-top: 30px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: center;
}
.btn {
  display: inline-block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 13px 22px;
  border: 1px solid var(--ink);
  color: var(--ink);
  background: transparent;
  transition: background .15s ease, color .15s ease;
}
.btn:hover { background: var(--ink); color: var(--paper); }
.btn.teal { border-color: var(--teal-deep); color: var(--paper); background: var(--teal-deep); }
.btn.teal:hover { background: var(--teal-mid); border-color: var(--teal-mid); }

/* ---------- Paths ---------- */
.paths {
  padding: 56px 0 60px;
  background: var(--paper-raised);
  border-bottom: 1px solid var(--rule);
}
.path-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: stretch;
}
@media (max-width: 680px) {
  .path-grid { grid-template-columns: 1fr; }
}
.path-card {
  border: 1px solid rgba(14, 58, 59, 0.18);
  background: var(--paper);
  box-shadow: 0 1px 3px rgba(14, 58, 59, 0.06);
  display: flex;
  flex-direction: column;
}
.path-body {
  padding: 32px 28px 30px;
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
}
.path-body h2 { font-size: 23px; }
.path-body > p { margin-top: 12px; margin-bottom: 0; color: var(--ink-soft); font-size: 15.5px; flex: 1 1 auto; text-align: left; hyphens: none; }
.path-links {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 12px;
}
.path-links a {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12.5px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid var(--teal);
  color: var(--teal);
  padding: 8px 14px;
  transition: background .15s ease, color .15s ease;
}
.path-links a:hover, .path-links a:focus-visible { background: var(--teal); color: var(--paper); }

/* ---------- Start band ---------- */
.start-band {
  background: var(--teal-deep);
  padding: 64px 0;
  border-bottom: 1px solid rgba(247, 245, 238, 0.15);
}
.start-band .eyebrow {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(247, 245, 238, 0.75);
  margin-bottom: 16px;
}
.start-band h2 {
  color: var(--paper);
  font-size: 34px;
}
.start-band .lede {
  color: rgba(247, 245, 238, 0.82);
  max-width: 54ch;
  margin-top: 16px;
  font-size: 16.5px;
}
.start-band .pills {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}
.start-band .pill {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12.5px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid rgba(247, 245, 238, 0.55);
  color: var(--paper);
  padding: 8px 14px;
  transition: background .15s ease, color .15s ease, border-color .15s ease;
}
.start-band .pill:hover, .start-band .pill:focus-visible {
  background: var(--paper);
  color: var(--teal-deep);
  border-color: var(--paper);
}

/* ---------- Section shell w/ file tab ---------- */
section.doc {
  padding: 52px 0;
  background: var(--paper-raised);
  border-bottom: 1px solid var(--rule);
}
.tab {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--teal);
  background: var(--paper);
  border: 1px solid var(--rule);
  border-bottom: none;
  padding: 7px 14px 6px;
  margin-bottom: -1px;
  position: relative;
  top: -1px;
}
.doc-body {
  border: 1px solid var(--rule);
  background: var(--paper);
  padding: 34px 32px;
}
@media (max-width: 620px) {
  .doc-body { padding: 26px 20px; }
}

section.doc h2 { font-size: 27px; margin-bottom: 18px; }
section.doc > .wrap > .doc-body > p.lead { color: var(--ink-soft); }

/* ---------- Scope grid ---------- */
.scope-grid {
  margin-top: 26px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--rule);
}
@media (max-width: 620px) {
  .scope-grid { grid-template-columns: 1fr; }
}
.scope-grid .scope-item:last-child:nth-child(odd) { grid-column: 1 / -1; }
.scope-item {
  background: var(--paper);
  padding: 24px 26px;
}
.scope-item .code {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11.5px;
  color: var(--teal);
  letter-spacing: 0.06em;
}
.scope-item h3 { font-size: 18px; margin-top: 8px; margin-bottom: 8px; }
.scope-item p { font-size: 15px; margin: 0; color: var(--ink-soft); text-align: left; hyphens: none; }

/* ---------- Tags ---------- */
.tags { margin-top: 20px; display: flex; flex-wrap: wrap; gap: 10px; }
.tag {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12.5px;
  letter-spacing: 0.03em;
  border: 1px solid var(--teal);
  color: var(--teal);
  padding: 6px 12px;
}

/* ---------- Substack ---------- */
.substack-list {
  margin-top: 26px;
  display: flex;
  flex-direction: column;
}
.substack-entry {
  display: block;
  text-decoration: none;
  color: inherit;
  padding: 18px 0;
  border-top: 1px dashed var(--rule);
}
.substack-list .substack-entry:first-child { border-top: none; padding-top: 0; }
.substack-entry .date {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--teal);
}
.substack-entry h3 {
  font-size: 18px;
  margin-top: 6px;
  margin-bottom: 6px;
  transition: color .15s ease;
}
.substack-entry:hover h3 { color: var(--teal); }
.substack-entry p { font-size: 15px; margin: 0; color: var(--ink-soft); }

#substack .doc-body {
  background: var(--teal);
  border-color: var(--teal-deep);
}
#substack h2 { color: var(--paper); }
#substack > .wrap > .doc-body > p.lead { color: rgba(247, 245, 238, 0.85); }
#substack .substack-entry { border-top-color: rgba(247, 245, 238, 0.25); }
#substack .substack-entry .date { color: rgba(247, 245, 238, 0.75); transition: color .15s ease; }
#substack .substack-entry h3 { color: var(--paper); }
#substack .substack-entry p { color: rgba(247, 245, 238, 0.75); }
#substack .substack-entry:hover h3,
#substack .substack-entry:hover .date,
#substack .substack-entry:focus-visible h3,
#substack .substack-entry:focus-visible .date,
#substack .substack-entry:active h3,
#substack .substack-entry:active .date {
  color: var(--paper-dim);
}
#substack a:focus-visible { outline-color: var(--paper); }
#substack .btn.teal {
  background: var(--paper);
  color: var(--teal-deep);
  border-color: var(--paper);
}
#substack .btn.teal:hover {
  background: var(--paper-dim);
  border-color: var(--paper-dim);
  color: var(--teal-deep);
}

/* ---------- About ---------- */
.about-layout p { font-size: 16px; color: var(--ink-soft); }
.credentials {
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px dashed var(--rule);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
  color: var(--ink-soft);
  display: grid;
  gap: 6px;
}
.about-grid {
  display: flex;
  gap: 36px;
  align-items: center;
}
.about-grid .about-text { flex: 1 1 auto; min-width: 0; }
.about-photo {
  flex: 0 0 auto;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--rule);
}
@media (max-width: 680px) {
  .about-grid { flex-direction: column-reverse; align-items: stretch; }
  .about-photo { width: 180px; height: 180px; align-self: center; }
}

/* ---------- Contact ---------- */
.contact-form .form-row {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.contact-form .form-row input {
  flex: 1 1 220px;
  min-width: 0;
}
.contact-form input[type="text"],
.contact-form textarea {
  display: block;
  width: 100%;
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--rule);
  padding: 14px 16px;
  resize: vertical;
}
.contact-form textarea {
  min-height: 140px;
  margin-top: 16px;
}
.contact-form input[type="text"]:focus-visible,
.contact-form textarea:focus-visible {
  outline: 2px solid var(--teal-deep);
  outline-offset: 2px;
}
.contact-form button { margin-top: 18px; }
.form-success {
  font-size: 16px;
  font-weight: 500;
  color: var(--teal-deep);
  margin: 16px 0 22px;
}
.contact-divider {
  border-top: 1px dashed var(--rule);
  margin: 32px 0 20px;
}
.contact-secondary {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 8px 24px;
}
.contact-secondary a.email {
  display: inline-block;
  max-width: 100%;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 14px;
  text-decoration: none;
  color: var(--ink-soft);
  border-bottom: 1px solid transparent;
  overflow-wrap: break-word;
  word-break: break-word;
  transition: color .15s ease, border-color .15s ease;
}
.contact-secondary a.email:hover { color: var(--teal); border-color: var(--teal); }
.contact-meta {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12.5px;
  color: var(--ink-soft);
}

footer {
  border-top: 1px solid var(--rule);
  padding: 26px 0;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  color: var(--ink-soft);
}
footer .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px 28px;
}
footer .footer-home {
  color: var(--ink-soft);
  text-decoration: none;
  transition: color .15s ease;
}
footer .footer-home:hover { color: var(--teal); }
footer .footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
}
footer .footer-nav a {
  color: var(--ink-soft);
  text-decoration: none;
  transition: color .15s ease;
}
footer .footer-nav a:hover { color: var(--teal); }

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