/* ===== TOKENS ===== */
:root {
  --accent: #5C9E74;
  --accent-bright: #74B88C;
  --accent-dim: #3C6E50;
  --accent-ghost: rgba(92, 158, 116, 0.06);
  --accent-glow: rgba(92, 158, 116, 0.10);

  --bg-deep: #0C0D10;
  --bg-surface: #131519;
  --bg-raised: #191C22;
  --bg-hover: #1E2128;

  --text-primary: #CECFC8;
  --text-secondary: #5E6860;
  --text-muted: #323A34;

  --border: #1C2020;
  --font-mono:
    "JetBrains Mono", "Fira Code", "SF Mono", "Cascadia Code", "Consolas",
    monospace;
}

/* ===== RESET & BASE ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scrollbar-color: var(--accent-dim) var(--bg-deep);
  font-size: 15px;
}

body {
  background-color: var(--bg-deep);
  color: var(--text-primary);
  font-family: var(--font-mono);
  line-height: 1.7;
  min-height: 100vh;
}

::selection {
  background: var(--accent);
  color: var(--bg-deep);
}

/* ===== LAYOUT ===== */
.shell {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

main {
  padding: 3rem 0 0;
}

section {
  margin-bottom: 4.5rem;
}

section:last-child {
  margin-bottom: 3rem;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3 {
  line-height: 1.3;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* ===== ANIMATIONS ===== */
@keyframes blink {
  50% { opacity: 0; }
}

/* ===== HEADER ===== */
.site-header {
  display: flex;
  align-items: center;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border);
}

.site-brand {
  color: var(--text-primary);
  font-size: 0.875rem;
  letter-spacing: 0.02em;
  flex: 1;
  transition: color 0.15s;
}

.site-brand:hover {
  color: var(--accent);
  text-decoration: none;
}

.site-header nav {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.site-header nav a {
  color: var(--text-secondary);
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  transition: color 0.15s;
}

.site-header nav a:hover {
  color: var(--accent);
  text-decoration: none;
}

/* ===== SECTION LABEL ===== */
.section-label {
  color: var(--accent-dim);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  margin-bottom: 1.25rem;
}

/* ===== HERO ===== */
.hero {
  padding: 5rem 0 4rem;
}

.hero-name {
  font-size: 2.75rem;
  color: var(--text-primary);
  font-weight: bold;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

.hero-subtitle {
  color: var(--text-secondary);
  font-size: 0.925rem;
}

.cursor-blink {
  display: inline-block;
  width: 0.5em;
  height: 0.85em;
  background: var(--accent);
  vertical-align: text-bottom;
  margin-left: 0.15em;
  animation: blink 1s step-end infinite;
  opacity: 0.6;
}

/* ===== ABOUT ===== */
.about-block {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-left: 2px solid var(--accent-dim);
  border-radius: 2px;
  padding: 1.5rem 1.75rem;
}

.about-block p {
  color: var(--text-primary);
  margin-bottom: 0.85rem;
}

.about-block p:last-of-type {
  margin-bottom: 1.25rem;
}

.download-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  padding: 0.3rem 0.75rem;
  border-radius: 2px;
  font-size: 0.8rem;
  transition: color 0.15s, border-color 0.15s;
}

.download-link:hover {
  color: var(--accent);
  border-color: var(--accent-dim);
  text-decoration: none;
}

/* ===== EXPERIENCE TIMELINE ===== */
.timeline {
  list-style: none;
  border-left: 1px solid var(--border);
  padding-left: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.timeline li {
  position: relative;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 2px;
  padding: 1.1rem 1.4rem;
  transition: border-color 0.2s;
}

.timeline li::before {
  content: "";
  position: absolute;
  left: -1.95rem;
  top: 1.2rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-muted);
  border: 1px solid var(--border);
}

.timeline li.current::before {
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 8px var(--accent-ghost);
}

.timeline li:hover {
  border-color: var(--accent-dim);
}

.exp-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 0.2rem;
}

.exp-role {
  color: var(--text-primary);
  font-weight: bold;
}

.exp-date {
  color: var(--text-muted);
  font-size: 0.78rem;
  white-space: nowrap;
}

.exp-company {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: 0.6rem;
}

.exp-company a {
  color: var(--accent-dim);
  transition: color 0.15s;
}

.exp-company a::after {
  content: " ↗";
  font-size: 0.75em;
  opacity: 0.6;
}

.exp-company a:hover {
  color: var(--accent);
  text-decoration: none;
}

.exp-company a:hover::after {
  opacity: 1;
}

.exp-desc {
  color: var(--text-primary);
  font-size: 0.875rem;
  margin-bottom: 0.875rem;
  opacity: 0.85;
}

.exp-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.exp-tags span {
  font-size: 0.72rem;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  padding: 0.1rem 0.5rem;
  border-radius: 2px;
  letter-spacing: 0.02em;
}

/* ===== STACK TREE ===== */
.tree {
  font-size: 0.9rem;
  margin-bottom: 2.5rem;
}

.tree details {
  border-bottom: 1px solid var(--border);
}

.tree details:first-child {
  border-top: 1px solid var(--border);
}

.tree summary {
  color: var(--text-secondary);
  cursor: pointer;
  list-style: none;
  padding: 0.6rem 0;
  user-select: none;
  transition: color 0.15s;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.tree summary::-webkit-details-marker {
  display: none;
}

.tree summary::before {
  content: "▸";
  color: var(--text-muted);
  font-size: 0.65rem;
  transition: color 0.15s;
  flex-shrink: 0;
}

.tree details[open] > summary::before {
  content: "▾";
  color: var(--accent-dim);
}

.tree summary:hover {
  color: var(--text-primary);
}

.tree summary:hover::before {
  color: var(--accent-dim);
}

.tree details[open] > summary {
  color: var(--text-primary);
}

.tree-leaves {
  padding: 0.25rem 0 0.75rem 1.25rem;
}

.tree-leaf {
  color: var(--text-secondary);
  padding: 0.2rem 0;
  font-size: 0.84rem;
}

.tree-leaf::before {
  content: "— ";
  color: var(--text-muted);
}

/* ===== SPECS PANEL ===== */
.specs-panel {
  border: 1px solid var(--border);
  border-radius: 2px;
  overflow: hidden;
}

.specs-header {
  background: var(--bg-raised);
  padding: 0.5rem 1rem;
  color: var(--text-muted);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
}

.specs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
}

.specs-cell {
  padding: 0.75rem 1rem;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.specs-label {
  display: block;
  color: var(--text-muted);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin-bottom: 0.2rem;
}

.specs-value {
  color: var(--text-secondary);
  font-size: 0.84rem;
}

/* ===== CONTACT ===== */
.links-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.links-list li::before {
  content: "→ ";
  color: var(--text-muted);
}

.links-list a {
  color: var(--text-primary);
  transition: color 0.15s;
}

.links-list a:hover {
  color: var(--accent);
  text-decoration: none;
}

/* ===== FOOTER ===== */
footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 0 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: center;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.footer-stack {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-stack a {
  color: var(--text-secondary);
  transition: color 0.15s;
}

.footer-stack a:hover {
  color: var(--accent);
  text-decoration: none;
}

.footer-dot {
  opacity: 0.35;
}

.footer-nojs {
  color: var(--text-muted);
  letter-spacing: 0.06em;
  font-size: 0.7rem;
  text-transform: uppercase;
}

.footer-meta {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  justify-content: center;
}

.status-dot {
  display: inline-block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  animation: blink 2.5s ease-in-out infinite;
  margin-right: 0.4rem;
  vertical-align: middle;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 520px) {
  html {
    font-size: 14px;
  }

  .site-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .site-header nav {
    gap: 1rem;
  }

  .hero {
    padding: 3.5rem 0 3rem;
  }

  .hero-name {
    font-size: 2rem;
  }

  .specs-grid {
    grid-template-columns: 1fr 1fr;
  }

  .exp-header {
    flex-direction: column;
    gap: 0.1rem;
  }
}

/* ===== PRINT ===== */
@media print {
  body {
    background: white;
    color: #111;
  }

  .cursor-blink,
  .download-link,
  .status-dot {
    display: none;
  }

  a {
    color: #111;
  }

  .hero-name,
  .section-label,
  .site-brand {
    color: #111;
  }

  .exp-tags span,
  .site-header nav a,
  .timeline li,
  .about-block,
  .specs-panel,
  .specs-cell {
    border-color: #ccc;
  }

  .timeline li::before,
  .timeline li.current::before {
    background: #111;
    box-shadow: none;
  }

  a::after {
    content: " (" attr(href) ")";
    font-size: 0.8em;
    color: #555;
  }

  .download-link::after {
    content: none;
  }
}