:root {
  --ink: #0F1720;
  --panel: #161F2A;
  --panel-border: #263341;
  --fog: #8A97A6;
  --paper: #E9EEF2;
  --signal: #5FCBDA;
  --amber: #E8A33D;
  --good: #6FCF97;
  --crit: #E06C75;

  --display: 'Space Grotesk', sans-serif;
  --mono: 'IBM Plex Mono', monospace;
  --body: 'Inter', sans-serif;

  --max-w: 1080px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(var(--panel-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--panel-border) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.12;
}

a { color: var(--signal); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--signal); outline-offset: 3px; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

.wrap { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; position: relative; z-index: 1; }
.post-wrap { max-width: 760px; }

/* ---- NAV ---- */
header.nav {
  position: sticky; top: 0; z-index: 10;
  background: rgba(15, 23, 32, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--panel-border);
}
.nav-inner {
  max-width: var(--max-w); margin: 0 auto; padding: 16px 24px;
  display: flex; align-items: center; justify-content: space-between;
  position: relative;
}
.logo {
  font-family: var(--mono); font-size: 0.95rem; color: var(--paper);
  display: flex; align-items: center; gap: 8px;
}
.logo:hover { text-decoration: none; color: var(--paper); }
.logo-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--good); box-shadow: 0 0 8px var(--good); flex-shrink: 0; }
nav.links { display: flex; align-items: center; gap: 6px; font-family: var(--mono); font-size: 0.82rem; }
nav.links a {
  color: var(--fog); padding: 7px 10px; border: 1px solid transparent;
  border-radius: 999px; line-height: 1; white-space: nowrap;
}
nav.links a:hover,
nav.links a.is-active {
  color: var(--paper); background: rgba(96, 218, 232, 0.08);
  border-color: rgba(96, 218, 232, 0.25); text-decoration: none;
}
nav.links a.nav-cta {
  color: var(--signal); border-color: var(--panel-border);
}
nav.links a.nav-cta.is-active,
nav.links a.nav-cta:hover {
  color: var(--ink); background: var(--signal); border-color: var(--signal);
}
.mobile-menu-toggle,
.mobile-menu-panel { display: none; }

@media (max-width: 860px) {
  nav.links { display: none; }
  .mobile-menu-toggle {
    min-height: 44px; min-width: 44px;
    display: inline-flex; align-items: center; justify-content: center; gap: 10px;
    background: var(--panel); color: var(--paper);
    border: 1px solid var(--panel-border); border-radius: 6px;
    padding: 10px 12px; font-family: var(--mono); font-size: 0.85rem;
    cursor: pointer;
  }
  .mobile-menu-toggle[aria-expanded="true"] { border-color: var(--signal); }
  .mobile-menu-icon {
    width: 18px; height: 12px; display: inline-block;
    border-top: 2px solid var(--signal); border-bottom: 2px solid var(--signal);
    position: relative;
  }
  .mobile-menu-icon::before {
    content: ''; position: absolute; left: 0; right: 0; top: 3px;
    border-top: 2px solid var(--signal);
  }
  .mobile-menu-toggle[aria-expanded="true"] .mobile-menu-icon {
    height: 18px; border: 0;
  }
  .mobile-menu-toggle[aria-expanded="true"] .mobile-menu-icon::before,
  .mobile-menu-toggle[aria-expanded="true"] .mobile-menu-icon::after {
    content: ''; position: absolute; left: 0; right: 0; top: 8px;
    border-top: 2px solid var(--amber);
  }
  .mobile-menu-toggle[aria-expanded="true"] .mobile-menu-icon::before { transform: rotate(45deg); }
  .mobile-menu-toggle[aria-expanded="true"] .mobile-menu-icon::after { transform: rotate(-45deg); }
  .mobile-menu-panel {
    position: absolute; top: 100%; left: 0; right: 0;
    z-index: 11; gap: 1px; overflow: hidden;
    background: var(--panel-border); border-bottom: 1px solid var(--panel-border);
    box-shadow: 0 20px 50px -24px rgba(0,0,0,0.85);
  }
  .mobile-menu-panel:not([hidden]) { display: grid; }
  .mobile-menu-panel a {
    background: rgba(22, 31, 42, 0.98); color: var(--fog);
    padding: 16px 24px; min-height: 48px;
    display: flex; align-items: center; justify-content: space-between;
    font-family: var(--mono); font-size: 0.95rem;
  }
  .mobile-menu-panel a::after { content: '→'; color: var(--signal); }
  .mobile-menu-panel a:hover { color: var(--signal); text-decoration: none; }
  .mobile-menu-panel a:active { background: #131B24; color: var(--paper); }
}

/* ---- HERO ---- */
.hero {
  padding: 96px 0 72px;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 48px;
  align-items: center;
  border-top: none;
}
@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; padding: 56px 0 48px; }
}
.eyebrow {
  font-family: var(--mono); font-size: 0.8rem; color: var(--amber);
  letter-spacing: 0.06em; margin-bottom: 18px; display: flex; align-items: center; gap: 10px;
}
.eyebrow::before { content: ''; width: 22px; height: 1px; background: var(--amber); display: inline-block; }
h1 {
  font-family: var(--display); font-weight: 600;
  font-size: clamp(2.1rem, 4.5vw, 3.4rem);
  line-height: 1.08; margin: 0 0 20px; color: var(--paper);
}
h1 .accent { color: var(--signal); }
.lede { font-size: 1.08rem; color: var(--fog); max-width: 46ch; margin-bottom: 32px; }
.cta-row { display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  font-family: var(--mono); font-size: 0.85rem;
  padding: 12px 20px; border-radius: 4px; border: 1px solid var(--panel-border);
  display: inline-flex; align-items: center; gap: 8px;
  transition: border-color 0.15s, transform 0.15s;
}
.btn:hover { border-color: var(--signal); text-decoration: none; transform: translateY(-1px); }
.btn.primary { background: var(--signal); color: var(--ink); border-color: var(--signal); font-weight: 600; }
.btn.primary:hover { background: #7ad7e3; }

/* ---- TERMINAL ---- */
.terminal {
  background: var(--panel); border: 1px solid var(--panel-border); border-radius: 8px;
  font-family: var(--mono); font-size: 0.82rem;
  overflow: hidden;
  box-shadow: 0 20px 60px -20px rgba(0,0,0,0.6);
}
.terminal-bar {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 14px; border-bottom: 1px solid var(--panel-border);
  background: #131B24;
}
.terminal-dot { width: 10px; height: 10px; border-radius: 50%; }
.terminal-title { margin-left: 8px; color: var(--fog); font-size: 0.75rem; }
.terminal-body { padding: 18px 16px; min-height: 220px; }
.term-line { margin: 0 0 8px; white-space: pre-wrap; word-break: break-word; }
.tag { padding: 1px 6px; border-radius: 3px; font-size: 0.72rem; margin-right: 8px; font-family: var(--mono); }
.tag.info { background: rgba(95,203,218,0.15); color: var(--signal); }
.tag.warn { background: rgba(232,163,61,0.15); color: var(--amber); }
.tag.ok { background: rgba(111,207,151,0.15); color: var(--good); }
.cursor { display: inline-block; width: 7px; height: 14px; background: var(--signal); vertical-align: -2px; animation: blink 1s step-end infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* ---- HOME SECTIONS ---- */
section { padding: 64px 0; border-top: 1px solid var(--panel-border); }
.section-head { display: flex; align-items: baseline; gap: 16px; margin-bottom: 36px; flex-wrap: wrap; }
.section-num { font-family: var(--mono); color: var(--amber); font-size: 0.85rem; }
h2 { font-family: var(--display); font-size: clamp(1.5rem, 3vw, 2rem); margin: 0; color: var(--paper); font-weight: 600; }
.section-sub { font-family: var(--mono); font-size: 0.78rem; color: var(--fog); margin-left: auto; }

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 32px;
  align-items: start;
}
.about-body { max-width: 68ch; color: var(--fog); font-size: 1.02rem; }
.about-body p { margin: 0 0 18px; }
.about-body strong { color: var(--paper); font-weight: 600; }
.about-photo-card {
  margin: 0;
  width: min(100%, 280px);
  justify-self: end;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 20px 60px -28px rgba(0,0,0,0.65);
}
.about-photo-card img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

@media (max-width: 760px) {
  .about-grid { grid-template-columns: 1fr; }
  .about-photo-card {
    width: min(100%, 320px);
    justify-self: start;
  }
}

.log-list { display: flex; flex-direction: column; gap: 14px; }
.log-entry {
  background: var(--panel); border: 1px solid var(--panel-border); border-radius: 6px;
  padding: 18px 20px; display: grid; grid-template-columns: 130px 1fr; gap: 18px;
}
@media (max-width: 640px) { .log-entry { grid-template-columns: 1fr; gap: 8px; } }
.log-meta { font-family: var(--mono); font-size: 0.75rem; }
.log-meta .sev { display: block; margin-bottom: 6px; font-weight: 600; }
.sev.info { color: var(--signal); }
.sev.warn { color: var(--amber); }
.sev.crit { color: var(--crit); }
.sev.ok { color: var(--good); }
.log-meta .ts { color: var(--fog); }
.log-content h3 { margin: 0 0 6px; font-family: var(--body); font-size: 1.02rem; font-weight: 600; color: var(--paper); }
.log-content h3 a { color: var(--paper); }
.log-content h3 a:hover { color: var(--signal); }
.log-content p { margin: 0; color: var(--fog); font-size: 0.94rem; }
.log-entry.is-empty { background: rgba(22, 31, 42, 0.55); }
.log-entry.is-empty h3 { color: var(--fog); }
.stack-pills { margin-top: 10px; display: flex; flex-wrap: wrap; gap: 6px; }
.pill { font-family: var(--mono); font-size: 0.72rem; color: var(--fog); border: 1px solid var(--panel-border); padding: 2px 10px; border-radius: 20px; }
.mono-link { font-family: var(--mono); font-size: 0.78rem; }

.project-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.project-card {
  min-width: 0; background: var(--panel); border: 1px solid var(--panel-border);
  border-radius: 6px; padding: 20px; display: flex; flex-direction: column; gap: 14px;
}
.project-card-head,
.project-card-footer { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.project-card h3 {
  margin: 0; font-family: var(--display); font-weight: 600; color: var(--paper);
  font-size: 1.2rem; overflow-wrap: anywhere;
}
.project-card p { margin: 0; color: var(--fog); font-size: 0.94rem; }
.project-card-footer { margin-top: auto; padding-top: 4px; }
.project-card-empty { max-width: 620px; background: rgba(22, 31, 42, 0.55); }
@media (max-width: 760px) {
  .project-grid { grid-template-columns: 1fr; }
}

.roadmap { position: relative; padding-left: 28px; }
.roadmap::before { content: ''; position: absolute; left: 6px; top: 6px; bottom: 6px; width: 1px; background: var(--panel-border); }
.road-step { position: relative; padding-bottom: 32px; }
.road-step:last-child { padding-bottom: 0; }
.road-dot { position: absolute; left: -28px; top: 4px; width: 13px; height: 13px; border-radius: 50%; border: 2px solid var(--panel-border); background: var(--ink); }
.road-step.active .road-dot { border-color: var(--amber); background: var(--amber); box-shadow: 0 0 10px rgba(232,163,61,0.5); }
.road-step.done .road-dot { border-color: var(--good); background: var(--good); }
.road-label { font-family: var(--mono); font-size: 0.72rem; color: var(--fog); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 4px; }
.road-step.active .road-label { color: var(--amber); }
.road-step h3 { margin: 0 0 6px; font-family: var(--body); font-weight: 600; font-size: 1.05rem; color: var(--paper); }
.road-step p { margin: 0; color: var(--fog); font-size: 0.92rem; max-width: 56ch; }

.skills-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1px; background: var(--panel-border); border: 1px solid var(--panel-border); border-radius: 6px; overflow: hidden; }
.skill-cell { background: var(--panel); padding: 20px; }
.skill-cell h4 { margin: 0 0 8px; font-family: var(--mono); font-size: 0.78rem; color: var(--signal); text-transform: uppercase; letter-spacing: 0.04em; }
.skill-cell ul { margin: 0; padding: 0; list-style: none; }
.skill-cell li { color: var(--fog); font-size: 0.9rem; padding: 3px 0; }
.muted-label { color: var(--fog); font-weight: 400; text-transform: none; letter-spacing: 0; }

.contact-note { color: var(--fog); margin: -18px 0 24px; max-width: 62ch; }
.contact-panel {
  max-width: 920px; padding: 18px; background: rgba(18, 27, 38, 0.62);
  border: 1px solid var(--panel-border); border-radius: 8px;
}
.contact-actions {
  display: grid; grid-template-columns: 1fr;
  gap: 1px; background: var(--panel-border); border: 1px solid var(--panel-border);
  border-radius: 6px; overflow: hidden;
}
.contact-action {
  min-width: 0; display: flex; flex-direction: column; gap: 8px; padding: 16px 18px;
  background: var(--panel); font-family: var(--mono); font-size: 0.95rem;
  overflow-wrap: anywhere;
}
.contact-action:hover { background: rgba(96, 218, 232, 0.06); text-decoration: none; }
.contact-action-row { display: flex; align-items: center; gap: 12px; min-width: 0; }
.contact-action-row a { min-width: 0; overflow-wrap: anywhere; }
.copy-email {
  width: 34px; height: 34px; flex-shrink: 0; display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--panel-border); border-radius: 999px;
  background: transparent; color: var(--signal); cursor: pointer;
  padding: 0;
}
.copy-email:hover { border-color: var(--signal); background: rgba(96, 218, 232, 0.06); }
.copy-email.is-copied { border-color: var(--good); color: var(--good); }
.contact-action .label,
.social-block > .label {
  font-family: var(--mono); font-size: 0.7rem; color: var(--fog);
  text-transform: uppercase; letter-spacing: 0.08em;
}
.social-block { margin-top: 16px; }
.social-block > .label { display: block; margin-bottom: 10px; }
.social-links { display: flex; flex-wrap: wrap; gap: 10px; }
.social-link {
  min-height: 40px; display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 12px; border: 1px solid var(--panel-border); border-radius: 999px;
  background: rgba(18, 27, 38, 0.72); font-family: var(--mono); font-size: 0.86rem;
}
.social-link svg { width: 18px; height: 18px; fill: currentColor; flex-shrink: 0; }
.social-link:hover { background: rgba(96, 218, 232, 0.06); border-color: var(--signal); text-decoration: none; }
.placeholder-flag { color: var(--amber); font-size: 0.72rem; font-family: var(--mono); display: block; margin-top: 6px; }

@media (max-width: 700px) {
  .contact-panel { padding: 14px; }
  .contact-actions { grid-template-columns: 1fr; }
  .contact-action-row { align-items: flex-start; flex-direction: column; gap: 8px; }
}

.site-footer { padding: 40px 0 60px; text-align: center; color: var(--fog); font-family: var(--mono); font-size: 0.78rem; position: relative; z-index: 1; }

/* ---- 404 ---- */
.error-wrap { min-height: calc(100vh - 70px); display: flex; align-items: center; }
.error-hero {
  width: 100%; padding: 72px 0;
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center;
  border-top: none;
}
.error-hero h1 {
  font-size: clamp(2.4rem, 6vw, 4.5rem);
  max-width: 10ch;
}
.error-terminal .terminal-body { min-height: 190px; }

@media (max-width: 860px) {
  .error-wrap { min-height: auto; }
  .error-hero { grid-template-columns: 1fr; padding: 56px 0; }
}

/* ---- PAGES AND POSTS ---- */
.page-wrap { padding-top: 56px; padding-bottom: 80px; }
.page-kicker {
  font-family: var(--mono); font-size: 0.78rem; color: var(--amber);
  display: flex; align-items: center; gap: 10px; margin-bottom: 16px;
}
.page-kicker::before { content: ''; width: 22px; height: 1px; background: var(--amber); display: inline-block; }
.page-title {
  font-family: var(--display); font-size: clamp(1.8rem, 4vw, 2.6rem); line-height: 1.15;
  margin: 0 0 18px;
}
.page-lede { color: var(--fog); max-width: 62ch; margin: 0 0 36px; }
.page-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: -14px 0 36px; }
.detail-section { padding: 44px 0; }
.section-head.compact { margin-bottom: 22px; }
.section-intro { margin: -8px 0 22px; color: var(--fog); max-width: 62ch; }

.architecture-map {
  background: rgba(22, 31, 42, 0.72);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  padding: 22px;
}
.arch-core {
  margin: 0 auto 18px;
  max-width: 420px;
  text-align: center;
  border-color: rgba(95, 203, 218, 0.55);
}
.arch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}
.arch-node {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 6px;
  padding: 18px;
}
.arch-label {
  display: block;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--amber);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}
.arch-node strong {
  display: block;
  color: var(--paper);
  font-family: var(--display);
  font-size: 1.08rem;
  margin-bottom: 6px;
}
.arch-node small {
  display: block;
  color: var(--fog);
  font-size: 0.9rem;
  line-height: 1.55;
}

.toolbox-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
}
.toolbox-card {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 6px;
  padding: 20px;
}
.toolbox-card h3 {
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--signal);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.toolbox-card ul { margin: 0; padding: 0; list-style: none; }
.toolbox-card li {
  color: var(--fog);
  font-size: 0.92rem;
  padding: 5px 0;
  border-top: 1px solid rgba(38, 51, 65, 0.7);
}
.toolbox-card li:first-child { border-top: none; }

.changelog-list { display: grid; gap: 14px; }
.changelog-entry {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 6px;
  padding: 18px 20px;
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 18px;
}
.changelog-entry .mono-link {
  display: inline-flex;
  margin-top: 10px;
}

@media (max-width: 640px) {
  .architecture-map { padding: 16px; }
  .changelog-entry { grid-template-columns: 1fr; gap: 8px; }
}

.writeup-group { margin: 0 0 48px; }
.writeup-group:last-child { margin-bottom: 0; }
.writeup-group-head {
  display: flex; align-items: flex-start; gap: 16px;
  margin: 0 0 18px; padding-top: 24px; border-top: 1px solid var(--panel-border);
}
.writeup-group:first-of-type .writeup-group-head { padding-top: 0; border-top: none; }
.writeup-group-head h2 { font-size: clamp(1.35rem, 2.5vw, 1.75rem); margin-bottom: 4px; }
.writeup-group-head p { margin: 0; color: var(--fog); font-size: 0.92rem; max-width: 58ch; }

.breadcrumb {
  font-family: var(--mono); font-size: 0.78rem; color: var(--fog);
  margin: 40px 0 24px;
}
.breadcrumb a { color: var(--fog); }
.breadcrumb a:hover { color: var(--signal); }

.post-meta {
  font-family: var(--mono); font-size: 0.78rem; color: var(--amber);
  display: flex; align-items: center; gap: 10px; margin-bottom: 16px;
}
.post-meta::before { content: ''; width: 22px; height: 1px; background: var(--amber); display: inline-block; }

h1.post-title {
  font-family: var(--display); font-weight: 600;
  font-size: clamp(1.8rem, 4vw, 2.6rem); line-height: 1.15;
  margin: 0 0 20px; color: var(--paper);
}

.post-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 40px; }
.post-body { font-size: 1.02rem; color: #C7D0D9; }
.post-body p { margin: 0 0 20px; }
.post-body h2 {
  font-family: var(--display); font-weight: 600; color: var(--paper);
  font-size: 1.4rem; margin: 44px 0 16px; padding-top: 8px; border-top: 1px solid var(--panel-border);
}
.post-body h2:first-child { border-top: none; padding-top: 0; margin-top: 0; }
.post-body strong { color: var(--paper); font-weight: 600; }
.post-body ul, .post-body ol { margin: 0 0 20px; padding-left: 22px; }
.post-body li { margin-bottom: 8px; }

.callout {
  background: var(--panel); border: 1px solid var(--panel-border); border-left: 3px solid var(--amber);
  border-radius: 4px; padding: 16px 20px; margin: 0 0 24px;
  font-size: 0.92rem; color: var(--fog);
}
.callout strong { color: var(--amber); }

pre {
  background: #0B121A; border: 1px solid var(--panel-border); border-radius: 6px;
  padding: 16px 18px; overflow-x: auto; margin: 0 0 24px;
  font-family: var(--mono); font-size: 0.85rem; line-height: 1.6;
}
code { font-family: var(--mono); font-size: 0.88em; }
p code, li code {
  background: var(--panel); border: 1px solid var(--panel-border); border-radius: 3px;
  padding: 1px 6px; color: var(--signal);
}
pre code { background: none; border: none; padding: 0; color: var(--paper); }
.comment { color: var(--fog); }

.sev-line { display: flex; align-items: center; gap: 10px; margin-bottom: 4px; }
.sev-line .tag { margin-right: 0; }

.post-footer {
  margin: 56px 0 80px; padding-top: 28px; border-top: 1px solid var(--panel-border);
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px;
}
.post-footer-links { display: flex; align-items: center; flex-wrap: wrap; gap: 14px; }
.back-link { font-family: var(--mono); font-size: 0.85rem; }
.related { font-family: var(--mono); font-size: 0.78rem; color: var(--fog); }

@media (prefers-reduced-motion: reduce) {
  .cursor { animation: none; }
  html { scroll-behavior: auto; }
}