:root {
  --bg: #07090a;
  --grid-line: rgba(80, 255, 180, 0.035);
  --text: #c9d6cf;
  --text-dim: rgba(201, 214, 207, 0.65);
  --text-dimmer: rgba(201, 214, 207, 0.4);
  --heading: #eef6f1;
  --accent: #5cffb0;
  --accent-dim: rgba(92, 255, 176, 0.75);
  --border: rgba(120, 255, 190, 0.16);
  --border-soft: rgba(255, 255, 255, 0.06);
  --border-tag: rgba(201, 214, 207, 0.2);
  --mono: 'JetBrains Mono', ui-monospace, Menlo, monospace;
  --max-width: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 44px 44px;
  color: var(--text);
  font-family: var(--mono);
}

a {
  color: inherit;
}

/* ---------- topbar ---------- */

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 48px;
  border-bottom: 1px solid var(--border);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 10;
}

.topbar .path {
  color: var(--accent);
}

.nav {
  display: flex;
  gap: 26px;
}

.nav a {
  text-decoration: none;
  color: var(--text-dim);
  transition: color 0.15s ease;
}

.nav a:hover,
.nav a:focus-visible {
  color: var(--accent);
}

/* ---------- shared ---------- */

.prompt {
  font-size: 12.5px;
  color: var(--accent);
  letter-spacing: 0.14em;
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
}

/* ---------- hero ---------- */

.hero {
  padding: 88px 48px 72px;
  max-width: 920px;
}

.hero .prompt {
  margin-bottom: 22px;
  display: block;
}

.hero-title {
  margin: 0;
  font-size: 60px;
  line-height: 1.06;
  font-weight: 700;
  color: var(--heading);
  letter-spacing: -0.02em;
}

.cursor {
  color: var(--accent);
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}

.hero-sub {
  margin: 26px 0 0;
  max-width: 620px;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--text-dim);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 38px;
}

.btn {
  text-decoration: none;
  padding: 12px 22px;
  font-size: 13px;
  letter-spacing: 0.06em;
  font-family: var(--mono);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.btn-primary {
  border: 1px solid var(--accent);
  color: var(--accent);
  background: transparent;
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--accent);
  color: var(--bg);
}

.btn-ghost {
  border: 1px solid rgba(201, 214, 207, 0.25);
  color: var(--text-dim);
  background: transparent;
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
  border-color: var(--text);
  color: var(--heading);
}

/* ---------- projects ---------- */

.projects {
  padding: 0 48px;
}

.section-head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 12px;
  margin-bottom: 8px;
}

.section-head .count {
  margin-left: auto;
  font-size: 11.5px;
  color: var(--text-dimmer);
}

.project-list {
  display: flex;
  flex-direction: column;
}

.project-links {
  display: flex;
  flex-direction: column;
}

.project-links > a:hover {
  display: flex;
  flex-direction: column;
  text-decoration: underline solid var(--accent);
}

.project-row {
  display: grid;
  grid-template-columns: 210px 1fr 150px 84px;
  gap: 20px;
  align-items: baseline;
  padding: 22px 12px;
  border-bottom: 1px solid var(--border-soft);
  cursor: pointer;
  transition: background 0.15s ease;
  background: none;
  border-left: none;
  border-right: none;
  border-top: none;
  width: 100%;
  text-align: left;
  font-family: var(--mono);
  color: inherit;
}

.project-row:hover,
.project-row:focus-within {
  background: rgba(92, 255, 176, 0.06);
}

.project-name {
  font-size: 17px;
  color: var(--heading);
  font-weight: 500;
}

.project-desc {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--text-dim);
}

.project-tags {
  font-size: 11.5px;
  color: var(--accent-dim);
  line-height: 1.7;
}

.project-link {
  font-size: 12px;
  color: var(--accent);
  text-decoration: none;
  justify-self: end;
  background: none;
  border: none;
  font-family: var(--mono);
  cursor: pointer;
  padding: 0;
}

.project-gallery-toggle {
  color: var(--text-dimmer);
}

.project-gallery-toggle[aria-expanded="true"] {
  color: var(--accent);
}

.gallery-panel {
  margin: -8px 0 14px;
  padding: 20px 12px;
  border: 1px dashed rgba(92, 255, 176, 0.3);
  display: flex;
  gap: 20px;
  align-items: center;
}

.gallery-panel[hidden] {
  display: none;
}

.gallery-shot {
  width: 200px;
  height: 112px;
  flex: none;
  background: repeating-linear-gradient(45deg, rgba(92, 255, 176, 0.09) 0 6px, transparent 6px 12px);
  border: 1px solid rgba(92, 255, 176, 0.22);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10.5px;
  color: rgba(92, 255, 176, 0.6);
  text-align: center;
}

.gallery-note {
  font-size: 12.5px;
  line-height: 1.8;
  color: rgba(201, 214, 207, 0.55);
  margin: 0;
}

/* ---------- stack / experience ---------- */

.lower-grid {
  padding: 72px 48px 80px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
}

.stack .prompt,
.experience .prompt {
  display: block;
  border-bottom: 1px solid var(--border);
  padding-bottom: 12px;
  margin-bottom: 24px;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.tag {
  padding: 7px 13px;
  border: 1px solid var(--border-tag);
  font-size: 12px;
  color: rgba(201, 214, 207, 0.85);
}

.timeline {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.timeline-row {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 16px;
}

.timeline-date {
  font-size: 11.5px;
  color: var(--accent-dim);
}

.timeline-desc {
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--text-dim);
}

.timeline-desc strong {
  color: var(--heading);
  font-weight: 500;
}

/* ---------- responsive ---------- */

@media (max-width: 800px) {
  .topbar {
    padding: 16px 24px;
    flex-wrap: wrap;
    gap: 12px;
  }

  .nav {
    gap: 18px;
  }

  .hero {
    padding: 56px 24px 48px;
  }

  .hero-title {
    font-size: 38px;
  }

  .projects {
    padding: 0 24px;
  }

  .project-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .project-link {
    justify-self: start;
  }

  .gallery-panel {
    flex-direction: column;
    align-items: flex-start;
  }

  .lower-grid {
    padding: 48px 24px 56px;
    grid-template-columns: 1fr;
    gap: 40px;
  }
}