@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500&family=Syne:wght@500;700&display=swap");

/* ── Tokens ──────────────────────────────────────── */
:root {
  --bg:               #f5f4f0;
  --surface:          #ffffff;
  --surface2:         #eeede9;
  --ink:              #111110;
  --ink2:             rgba(17, 17, 16, 0.54);
  --ink3:             rgba(17, 17, 16, 0.32);
  --line:             rgba(17, 17, 16, 0.09);
  --accent:           #0d9166;
  --sh-sm:            0 1px 2px rgba(0,0,0,0.04), 0 2px 8px rgba(0,0,0,0.04);
  --sh:               0 1px 3px rgba(0,0,0,0.04), 0 6px 18px rgba(0,0,0,0.06);
  --r:                14px;
  --r-sm:             10px;
  --max-w:            960px;
  --label-on-primary: rgba(245, 244, 240, 0.6);
  color-scheme: light;
}

[data-theme="dark"] {
  --bg:               #0d0d0c;
  --surface:          #181817;
  --surface2:         #222220;
  --ink:              #f0ede7;
  --ink2:             rgba(240, 237, 231, 0.54);
  --ink3:             rgba(240, 237, 231, 0.3);
  --line:             rgba(255, 255, 255, 0.08);
  --accent:           #1ed87a;
  --sh-sm:            0 1px 2px rgba(0,0,0,0.3), 0 2px 8px rgba(0,0,0,0.2);
  --sh:               0 1px 3px rgba(0,0,0,0.3), 0 6px 18px rgba(0,0,0,0.25);
  --label-on-primary: rgba(13, 13, 12, 0.55);
  color-scheme: dark;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "IBM Plex Mono", monospace;
  font-size: 14px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  transition: background 0.18s, color 0.18s;
}

@media (prefers-reduced-motion: reduce) {
  body { transition: none; }
}

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

img { display: block; }

/* ── Layout ──────────────────────────────────────── */
.page-shell {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 16px 24px 56px;
}

.page-shell--narrow { max-width: 720px; }

/* ── Header ──────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 12px;
  z-index: 40;
  margin-bottom: 20px;
  display: flex;
  justify-content: flex-end;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.site-nav-links {
  display: flex;
  align-items: center;
  gap: 3px;
  padding: 4px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
  box-shadow: var(--sh-sm);
}

.nav-link {
  display: inline-flex;
  align-items: center;
  height: 28px;
  padding: 0 11px;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink2);
  border-radius: 999px;
  transition: color 0.14s, background 0.14s;
}

.nav-link:hover {
  color: var(--ink);
  background: var(--surface2);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  height: 30px;
  padding: 0 14px;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: var(--ink);
  color: var(--bg);
  border-radius: 999px;
  transition: opacity 0.14s;
}

.nav-cta:hover { opacity: 0.8; }

.theme-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  background: var(--ink);
  border: 1px solid transparent;
  border-radius: 999px;
  color: var(--bg);
  cursor: pointer;
  transition: background 0.18s, color 0.18s, opacity 0.14s;
  padding: 0;
}

.theme-btn:hover { opacity: 0.8; }

.icon-sun  { display: none; }
.icon-moon { display: block; }
[data-theme="dark"] .icon-sun  { display: block; }
[data-theme="dark"] .icon-moon { display: none; }

/* ── Typography ──────────────────────────────────── */
h1, h2, h3, h4 {
  margin: 0;
  font-family: "Syne", sans-serif;
  font-weight: 700;
  line-height: 1.06;
}

h1 { font-size: clamp(2rem, 3.6vw, 2.75rem); }
h3 { font-size: clamp(0.94rem, 1.2vw, 1.02rem); }
h4 { font-size: 0.86rem; line-height: 1.2; }

.eyebrow {
  margin: 0 0 12px;
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  font-family: "IBM Plex Mono", monospace;
  font-weight: 500;
}

/* ── Card surface — shared by all content panels ─── */
.card,
.hero,
.blog-hero,
.article-shell,
.post-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r);
  box-shadow: var(--sh);
}

.card          { padding: 24px; }
.hero-panel    { padding: 28px 30px 32px; }
.blog-hero     { padding: 24px; margin-top: 8px; }
.article-shell { padding: 28px; }
.post-card     { padding: 20px; display: flex; flex-direction: column; }

/* ── Sections ────────────────────────────────────── */
.section {
  margin-top: 48px;
  scroll-margin-top: 76px;
}

.section--hero { margin-top: 0; }

.section-title {
  margin-bottom: 14px;
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink3);
  font-family: "IBM Plex Mono", monospace;
  font-weight: 500;
  line-height: 1;
}

.section-head { margin-bottom: 16px; }

.section-sub {
  margin: 4px 0 0;
  font-size: 0.8rem;
  color: var(--ink2);
  line-height: 1.7;
}

/* ── Hero ────────────────────────────────────────── */
.hero {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 0;
  align-items: stretch;
  overflow: hidden;
}

.hero-tagline {
  margin: 10px 0 0;
  font-size: 0.8rem;
  color: var(--ink2);
  line-height: 1.6;
}

.hero-tagline a { color: var(--accent); }

.photo-panel {
  overflow: hidden;
}

.profile-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 8%;
  display: block;
}

.hero-bio {
  display: grid;
  gap: 12px;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.hero-bio p {
  margin: 0;
  font-size: 0.83rem;
  color: var(--ink2);
  line-height: 1.8;
  text-align: justify;
}

/* ── Experience ──────────────────────────────────── */
.company-block {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 16px;
  padding: 22px 0;
  border-top: 1px solid var(--line);
}

.company-block:first-child { border-top: none; padding-top: 0; }
.company-block:last-child  { padding-bottom: 0; }

.company-logo {
  width: 40px;
  height: 40px;
  border-radius: var(--r-sm);
  overflow: hidden;
  flex-shrink: 0;
}

.company-logo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.company-logo--text {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface2);
  border: 1px solid var(--line);
  font-family: "Syne", sans-serif;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--ink2);
}

.company-logo--icon {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface2);
  border: 1px solid var(--line);
  color: var(--ink3);
}

.company-logo--dark {
  background: var(--ink);
  color: var(--bg);
  border-color: transparent;
}

.company-body { min-width: 0; }

.company-meta {
  margin: 4px 0 0;
  font-size: 0.78rem;
  color: var(--ink);
  line-height: 1.5;
}

.company-date {
  margin: 2px 0 0;
  font-size: 0.75rem;
  color: var(--ink2);
  line-height: 1.5;
}

.company-desc {
  margin: 10px 0 0;
  font-size: 0.79rem;
  color: var(--ink2);
  line-height: 1.72;
}

/* Role timeline */
.role-timeline {
  margin-top: 14px;
  display: grid;
}

.role-item {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 8px;
}

.role-item:not(:last-child) { padding-bottom: 10px; }

.role-rail {
  position: relative;
  display: flex;
  justify-content: center;
}

.role-rail::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: -10px;
  width: 1px;
  background: var(--line);
}

.role-item:last-child .role-rail::before { bottom: 12px; }

.role-timeline--multi .role-item:first-child .role-rail::before { top: 9px; }
.role-timeline--multi .role-item:last-child  .role-rail::before { display: none; }

.role-dot {
  position: relative;
  top: 5px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--surface2);
  border: 1.5px solid var(--ink3);
  z-index: 1;
}

.role-body { min-width: 0; }

.role-body h4 { margin: 0; }

.role-body p {
  margin: 3px 0 0;
  font-size: 0.74rem;
  color: var(--ink2);
  line-height: 1.5;
}

.role-desc {
  margin-top: 8px !important;
  font-size: 0.78rem !important;
  line-height: 1.7 !important;
}

/* ── Publications ────────────────────────────────── */
.pub-list {
  padding: 0;
  overflow: hidden;
}

.pub-item {
  display: grid;
  grid-template-columns: 34px 1fr 18px;
  gap: 14px;
  align-items: center;
  padding: 13px 24px;
  border-top: 1px solid var(--line);
  transition: background 0.12s;
}

.pub-item:first-child { border-top: none; }

.pub-item:hover { background: var(--surface2); }

.pub-num {
  font-size: 0.67rem;
  color: var(--ink3);
  letter-spacing: 0.04em;
  font-weight: 500;
  text-align: right;
}

.pub-content {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.pub-type {
  font-size: 0.62rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ink3);
  font-weight: 500;
}

.pub-type--talk { color: var(--accent); }

.pub-title {
  font-size: 0.83rem;
  color: var(--ink);
  line-height: 1.4;
}

.pub-arrow {
  color: var(--ink3);
  flex-shrink: 0;
  transition: color 0.12s, transform 0.12s;
}

.pub-item:hover .pub-arrow {
  color: var(--accent);
  transform: translate(2px, -2px);
}

/* ── Projects / Blog grid ────────────────────────── */
.post-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.post-meta {
  margin: 0 0 8px;
  font-size: 0.66rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--ink3);
}

.post-card h3 {
  margin: 0 0 8px;
  font-size: 0.92rem;
  line-height: 1.2;
}

.post-card p {
  margin: 0;
  font-size: 0.79rem;
  color: var(--ink2);
  line-height: 1.72;
}

.post-card .text-link { margin-top: auto; padding-top: 14px; }

.text-link {
  display: inline-flex;
  margin-top: 14px;
  font-size: 0.74rem;
  color: var(--accent);
  transition: opacity 0.14s;
}

.text-link:hover { opacity: 0.72; }

/* ── Contact ─────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

/* contact-card uses --sh-sm (softer than .card's --sh) — intentional */
.contact-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r);
  box-shadow: var(--sh-sm);
  min-height: 88px;
  justify-content: center;
  align-items: center;
  text-align: center;
  transition: transform 0.14s, box-shadow 0.14s;
}

.contact-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--sh);
}

.contact-label {
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink3);
}

.contact-card strong {
  font-family: "Syne", sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink);
}

.contact-card--primary {
  grid-column: 1 / -1;
  background: var(--ink);
  border-color: transparent;
}

.contact-card--primary .contact-label { color: var(--label-on-primary); }
.contact-card--primary strong         { color: var(--bg); }

/* ── Footer ──────────────────────────────────────── */
.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 40px;
  padding: 20px 4px;
  border-top: 1px solid var(--line);
}

.footer-copy {
  font-size: 0.72rem;
  color: var(--ink3);
}

.footer-email {
  font-size: 0.72rem;
  color: var(--ink2);
  transition: color 0.14s;
}

.footer-email:hover { color: var(--accent); }

.footer-link {
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--ink2);
  white-space: nowrap;
  transition: color 0.14s;
}

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

/* ── Blog article pages ──────────────────────────── */
.blog-hero p {
  margin: 10px 0 0;
  font-size: 0.83rem;
  color: var(--ink2);
  max-width: 60ch;
  line-height: 1.78;
}

.article-meta {
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink3);
  margin-bottom: 12px;
}

.article-shell h1 { margin-top: 0; }

.article-body {
  display: grid;
  gap: 14px;
  margin-top: 22px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.article-body p {
  margin: 0;
  font-size: 0.83rem;
  color: var(--ink2);
  line-height: 1.8;
  max-width: 62ch;
}

.post-stack {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}

/* ── Responsive ──────────────────────────────────── */
@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; }

  .photo-panel {
    order: -1;
    aspect-ratio: 16 / 7;
  }

  .profile-photo { object-position: center 18%; }

  .post-grid    { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .page-shell { padding: 12px 16px 40px; }

  .site-nav-links { gap: 1px; }

  .nav-link {
    padding: 0 8px;
    font-size: 0.65rem;
  }

  .hero-panel { padding: 18px; }

  .card { padding: 16px; }

  .pub-item {
    grid-template-columns: 28px 1fr 16px;
    gap: 10px;
    padding: 12px 16px;
  }

  .company-block {
    grid-template-columns: 44px 1fr;
    gap: 12px;
  }

  .site-footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
}