/* ---------- Tokens ---------- */
:root {
  --paper: #ffffff;
  --ink: #0d0d0d;
  --ink-soft: #47443f;
  --muted: #85817a;
  --line: rgba(13, 13, 13, 0.14);
  --line-soft: rgba(13, 13, 13, 0.07);

  --accent: #1e3fe0;
  --growth: #167a45;

  --dark: #0d0d0d;
  --dark-line: rgba(255, 255, 255, 0.16);
  --dark-soft: #b7b4ad;

  --sans: "Archivo", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;

  --max: 1180px;
  --pad: clamp(1.5rem, 5vw, 5rem);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }

/* ---------- Restrained reveal — headings only, opacity only ---------- */
.reveal {
  opacity: 0;
  transition: opacity 0.5s ease;
}
.reveal.in { opacity: 1; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.4rem var(--pad);
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}

.mark {
  display: inline-flex;
  align-items: center;
  font-family: "Space Grotesk", var(--sans);
  font-weight: 700;
  font-size: 1.4rem;
  letter-spacing: -0.01em;
}
.mark-primary { color: var(--ink); }
.mark-accent {
  color: #fff;
  background: var(--accent);
  margin-left: 0.22em;
  padding: 0.12em 0.42em 0.16em;
  border-radius: 7px;
  line-height: 1.1;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 2.2rem;
}
.main-nav a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--ink-soft);
}
.main-nav a:hover { color: var(--ink); }
.main-nav .nav-say-hello {
  color: var(--accent);
  font-weight: 600;
}

.nav-dropdown { position: relative; padding-bottom: 0.9rem; margin-bottom: -0.9rem; }
.nav-dropdown-trigger {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}
.nav-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  margin-top: 0.6rem;
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 0.4rem;
  min-width: 260px;
  max-height: 0;
  overflow: hidden;
  visibility: hidden;
  opacity: 0;
  flex-direction: column;
  gap: 0.1rem;
  z-index: 50;
  transition: opacity 0.15s ease;
  transition-delay: 0.15s;
}
.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu,
.nav-dropdown.open .nav-dropdown-menu {
  max-height: none;
  visibility: visible;
  opacity: 1;
  display: flex;
  transition-delay: 0s;
}
.nav-dropdown-label {
  display: block;
  font-family: var(--mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  padding: 0.6rem 0.7rem 0.3rem;
  margin-top: 0.2rem;
  border-top: 1px solid var(--line-soft);
}
.nav-dropdown-menu a {
  padding: 0.55rem 0.7rem;
  font-size: 0.88rem;
  border-radius: 2px;
}
.nav-dropdown-menu a:hover { color: var(--accent); background: var(--line-soft); }

.menu-toggle {
  display: none;
  background: none;
  border: none;
  width: 32px;
  height: 20px;
  position: relative;
  cursor: pointer;
}
.menu-toggle span {
  position: absolute;
  left: 0; right: 0;
  height: 2px;
  background: var(--ink);
}
.menu-toggle span:first-child { top: 0; }
.menu-toggle span:last-child { bottom: 0; }

/* ---------- Section shared ---------- */
section {
  max-width: var(--max);
  margin: 0 auto;
  padding: 5.5rem var(--pad);
}

.section-title {
  font-family: var(--sans);
  font-weight: 800;
  font-size: clamp(1.8rem, 3.6vw, 2.6rem);
  letter-spacing: -0.015em;
  line-height: 1.1;
  margin: 0 0 3rem;
  max-width: 22ch;
}
.section-title.small {
  font-size: clamp(1.3rem, 2.2vw, 1.6rem);
  margin-bottom: 2rem;
  max-width: none;
}
.section-intro {
  max-width: 56ch;
  color: var(--ink-soft);
  font-size: 1.05rem;
  margin: -1.6rem 0 2.6rem;
}
.section-subtitle {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--ink-soft);
  margin: -1.8rem 0 2.2rem;
  max-width: 50ch;
}

/* ---------- Article (blog) ---------- */
.article-byline {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.2rem;
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--muted);
  margin: 1.6rem 0 0;
  border-top: 1px solid var(--line);
  padding-top: 1.6rem;
}
.article-byline strong { color: var(--ink-soft); font-weight: 600; }

.takeaways li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 1rem;
  max-width: 66ch;
  color: var(--ink-soft);
  font-size: 1.02rem;
  line-height: 1.7;
}
.takeaways li:last-child { margin-bottom: 0; }
.takeaways li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 7px;
  height: 2px;
  background: var(--accent);
}

.author-bio {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 2rem 0;
  margin-top: 1rem;
}
.author-bio-label {
  font-family: var(--mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent);
  display: block;
  margin-bottom: 0.8rem;
}
.author-bio h3 {
  font-weight: 700;
  font-size: 1.1rem;
  margin: 0 0 0.5rem;
}
.author-bio p {
  margin: 0;
  max-width: 62ch;
  color: var(--ink-soft);
  font-size: 0.98rem;
  line-height: 1.7;
}

/* ---------- Hero ---------- */
.hero {
  padding-top: clamp(4rem, 10vh, 6rem);
  padding-bottom: 4rem;
}
.hero-tag {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--muted);
  margin: 0 0 1.6rem;
}
.hero-headline {
  font-family: var(--sans);
  font-weight: 800;
  font-size: clamp(2.4rem, 6vw, 4.4rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  margin: 0 0 3rem;
  max-width: 18ch;
}
.hero-headline .accent { color: var(--accent); }

.hero-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 3rem;
  border-top: 1px solid var(--line);
  padding-top: 2rem;
}
.hero-sub {
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  line-height: 1.55;
  color: var(--ink-soft);
  max-width: 42ch;
  margin: 0;
}
.hero-meta {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  font-family: var(--mono);
  font-size: 0.86rem;
  text-align: right;
}
.hero-meta a { color: var(--ink-soft); }
.hero-meta a:hover { color: var(--accent); }

/* ---------- Results band (inverted) ---------- */
.results-band {
  background: var(--dark);
  color: var(--paper);
  max-width: none;
  padding: 3.5rem var(--pad);
}
.results-heading {
  font-family: var(--sans);
  font-weight: 600;
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  color: var(--dark-soft);
  max-width: 40ch;
  margin: 0 0 2.4rem;
}
.results-row {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 2.5rem 4rem;
}
.result { display: flex; flex-direction: column; }
.result-num {
  font-family: var(--mono);
  font-weight: 600;
  font-size: clamp(2rem, 4.2vw, 3rem);
  line-height: 1;
}
.result-num.accent-num { color: #5eff9e; }
.result-label {
  margin-top: 0.7rem;
  font-size: 0.85rem;
  color: var(--dark-soft);
}

/* ---------- Summary / TLDR ---------- */
.summary { padding-top: 4rem; padding-bottom: 3rem; }
.tldr-text {
  max-width: 66ch;
  color: var(--ink-soft);
  font-size: 1.05rem;
  line-height: 1.75;
  margin: 0 0 2rem;
}
.tldr-text strong { color: var(--ink); font-weight: 700; }
.pull-quote {
  font-family: var(--sans);
  font-weight: 700;
  font-size: clamp(1.3rem, 2.6vw, 1.8rem);
  line-height: 1.3;
  letter-spacing: -0.01em;
  max-width: 26ch;
  margin: 0 0 2.2rem;
  color: var(--ink);
}
.summary-body {
  max-width: 62ch;
  color: var(--ink-soft);
  font-size: 1.02rem;
  line-height: 1.7;
}

/* ---------- Ledger (services) ---------- */
.ledger-row {
  display: grid;
  grid-template-columns: 3rem 260px 1fr;
  gap: 1.6rem;
  padding: 1.8rem 0;
  border-top: 1px solid var(--line);
}
.ledger-row:last-child { border-bottom: 1px solid var(--line); }
.ledger-num {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--muted);
  padding-top: 0.2rem;
}
.ledger-row h3 {
  font-weight: 700;
  font-size: 1.1rem;
  margin: 0;
  color: var(--ink);
}
.ledger-row p {
  margin: 0;
  max-width: 62ch;
  color: var(--ink-soft);
  font-size: 0.98rem;
  line-height: 1.7;
}
.inline-link {
  color: var(--accent);
  font-weight: 600;
  white-space: nowrap;
}
.inline-link:hover { text-decoration: underline; }

/* ---------- Process steps ---------- */
.process-step {
  border-top: 1px solid var(--line);
  padding: 1.8rem 0;
}
.process-step:last-child { border-bottom: 1px solid var(--line); }
.process-step-head {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 0.6rem;
}
.process-step-num {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--accent);
}
.process-step-head h3 {
  font-weight: 700;
  font-size: 1.05rem;
  margin: 0;
}
.process-step p {
  margin: 0;
  max-width: 62ch;
  color: var(--ink-soft);
  font-size: 0.98rem;
  line-height: 1.7;
}

/* ---------- Mistake list ---------- */
.mistake-list li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 1.4rem;
  max-width: 66ch;
  color: var(--ink-soft);
  font-size: 1.02rem;
  line-height: 1.7;
}
.mistake-list li:last-child { margin-bottom: 0; }
.mistake-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 7px;
  height: 2px;
  background: var(--accent);
}
.mistake-list li strong { color: var(--ink); }

/* ---------- Prose blocks (audience / manifesto / case study / bilingual) ---------- */
.prose p {
  max-width: 66ch;
  color: var(--ink-soft);
  font-size: 1.05rem;
  line-height: 1.75;
  margin: 0 0 1.4rem;
}
.prose p:last-child { margin-bottom: 0; }

.manifesto {
  background: var(--dark);
  max-width: none;
  padding: 5.5rem var(--pad);
}
.manifesto > .section-title {
  max-width: 26ch;
  color: var(--paper);
}
.manifesto .prose-dark {
  max-width: var(--max);
  margin: 0 auto;
}
.manifesto .prose-dark p {
  color: var(--dark-soft);
  max-width: 66ch;
}

.case-study .stat-trio {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.6rem;
  font-family: var(--mono);
  font-size: 0.9rem;
  color: var(--accent);
  margin: 0 0 1.6rem;
}

/* ---------- Record (experience) ---------- */
.record-company {
  border-top: 1px solid var(--line);
  padding: 2.4rem 0;
}
.record-company:last-child { border-bottom: 1px solid var(--line); }
.record-company-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.6rem;
  flex-wrap: wrap;
}
.record-company-head h3 {
  font-weight: 800;
  font-size: clamp(1.3rem, 2.2vw, 1.6rem);
  margin: 0;
  letter-spacing: -0.01em;
}
.record-company-head .amp { color: var(--accent); }
.record-loc {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--muted);
}
.record-role + .record-role { margin-top: 2rem; }
.record-role-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.9rem;
  flex-wrap: wrap;
}
.record-role-head h4 {
  font-weight: 600;
  font-size: 1.05rem;
  margin: 0;
  color: var(--ink);
}
.record-date {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--muted);
  white-space: nowrap;
}
.record-role ul li {
  position: relative;
  padding-left: 1.2rem;
  margin-bottom: 0.65rem;
  font-size: 0.96rem;
  line-height: 1.6;
  color: var(--ink-soft);
  max-width: 68ch;
}
.record-role ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 2px;
  background: var(--accent);
}

/* ---------- Skills ---------- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3.5rem;
}
.skill-group h4 {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0 0 1.1rem;
  color: var(--ink);
}
.tags {
  font-size: 1rem;
  line-height: 2;
  color: var(--ink-soft);
}
.tags span:hover { color: var(--accent); }
.tags span:not(:last-child)::after {
  content: " / ";
  color: var(--line);
  margin: 0 0.05em;
}

/* ---------- Bilingual ---------- */
.bilingual-grid {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 2.5rem;
}
.bilingual-tag {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--muted);
  border-left: 2px solid var(--accent);
  padding-left: 1rem;
  height: fit-content;
}

/* ---------- Education ---------- */
.edu-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4.5rem;
}
.edu-item + .edu-item { margin-top: 2rem; }
.edu-date { font-family: var(--mono); font-size: 0.78rem; color: var(--muted); }
.edu-item h4 { font-weight: 700; font-size: 1.05rem; margin: 0.4rem 0 0.3rem; }
.edu-item p { margin: 0; font-size: 0.92rem; color: var(--muted); }

.lang-row { display: flex; gap: 2.2rem; flex-wrap: wrap; }
.lang-item h4 { font-size: 1.05rem; font-weight: 700; margin: 0 0 0.2rem; }
.lang-item p { margin: 0; font-size: 0.85rem; color: var(--muted); }
.cert-line { margin-top: 1.6rem; font-size: 0.9rem; color: var(--muted); }

/* ---------- FAQ ---------- */
.faq-item { border-top: 1px solid var(--line); }
.faq-item:last-child { border-bottom: 1px solid var(--line); }
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 1.7rem 0;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1.5rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary h2 {
  font-weight: 700;
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  margin: 0;
  flex: 1;
  letter-spacing: -0.01em;
}
.faq-toggle {
  font-family: var(--mono);
  font-size: 1.3rem;
  line-height: 1;
  color: var(--accent);
  flex-shrink: 0;
  transition: transform 0.3s ease;
}
.faq-item[open] .faq-toggle { transform: rotate(45deg); }
.faq-answer { padding: 0 0 1.8rem; }
.faq-answer p {
  margin: 0;
  max-width: 66ch;
  color: var(--ink-soft);
  font-size: 0.98rem;
  line-height: 1.7;
}

/* ---------- Contact (inverted) ---------- */
.contact {
  background: var(--dark);
  color: var(--paper);
  max-width: none;
  text-align: center;
  padding: 6rem var(--pad) 7rem;
}
.contact-title {
  font-weight: 800;
  font-size: clamp(2.2rem, 6vw, 4rem);
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin: 0 0 2.4rem;
}
.contact-email {
  display: inline-block;
  font-family: var(--mono);
  font-size: clamp(1.05rem, 2.4vw, 1.3rem);
  color: var(--paper);
  border-bottom: 1px solid var(--dark-line);
  padding-bottom: 0.3rem;
  margin-bottom: 2rem;
}
.contact-email:hover { color: #5eff9e; border-color: #5eff9e; }
.contact-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--dark-soft);
}
.contact-links a:hover { color: var(--paper); }

/* ---------- Footer ---------- */
.site-footer {
  display: flex;
  justify-content: space-between;
  padding: 2rem var(--pad) 2.6rem;
  max-width: var(--max);
  margin: 0 auto;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--muted);
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .main-nav {
    position: fixed;
    top: 61px;
    left: 0; right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
  }
  .main-nav.open { max-height: 640px; overflow-y: auto; }
  .main-nav a { padding: 1rem var(--pad); border-top: 1px solid var(--line-soft); width: 100%; }
  .menu-toggle { display: block; z-index: 101; }
  .menu-toggle.active span:first-child { transform: translateY(9px) rotate(45deg); }
  .menu-toggle.active span:last-child { transform: translateY(-9px) rotate(-45deg); }
  .menu-toggle span { transition: transform 0.25s ease; }

  .nav-dropdown { width: 100%; }
  .nav-dropdown-menu {
    position: static;
    display: flex;
    border: none;
    margin-top: 0;
    padding: 0;
    min-width: 0;
  }
  .nav-dropdown-menu a { padding: 0.85rem var(--pad) 0.85rem calc(var(--pad) + 1rem); border-top: 1px solid var(--line-soft); border-radius: 0; }

  .hero-grid { grid-template-columns: 1fr; gap: 1.6rem; }
  .hero-meta { text-align: left; }

  .results-row { gap: 2rem 2.5rem; }

  .ledger-row { grid-template-columns: 1fr; gap: 0.5rem; }
  .ledger-num { padding-top: 0; }

  .record-role-head { flex-direction: column; gap: 0.3rem; }

  .skills-grid { grid-template-columns: 1fr; gap: 2.4rem; }

  .bilingual-grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .bilingual-tag { flex-direction: row; border-left: none; border-top: 2px solid var(--accent); padding-left: 0; padding-top: 0.8rem; }

  .edu-grid { grid-template-columns: 1fr; gap: 3rem; }

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