:root {
  --fg: #1b1a17;
  --fg-muted: #5c5952;
  --fg-faint: #8a857c;
  --bg: #fffaf0;
  --bg-panel: #fff;
  --border: #ebe4d4;
  --accent: #b44e3b;
  --accent-hover: #8f3a29;
}

@media (prefers-color-scheme: dark) {
  :root {
    --fg: #ececea;
    --fg-muted: #aeaa9e;
    --fg-faint: #7a7669;
    --bg: #1c1b17;
    --bg-panel: #23221d;
    --border: #32302a;
    --accent: #e88974;
    --accent-hover: #f0a794;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  max-width: 44rem;
  margin: 0 auto;
  padding: 4rem 1.25rem 5rem;
}

.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;
}

/* Header */

.site-header {
  margin-bottom: 3.5rem;
}
.site-header h1 {
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0 0 0.9rem;
  letter-spacing: -0.01em;
  color: var(--accent);
}
.intro {
  margin: 0;
  color: var(--fg-muted);
}

/* Filter */

.projects-wrap { position: relative; }

.menu-wrap {
  position: absolute;
  top: -0.2rem;
  right: 0;
  z-index: 5;
}

.filter-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.8rem;
  height: 1.8rem;
  padding: 0;
  background: transparent;
  color: var(--fg-muted);
  border: 1px solid transparent;
  border-radius: 6px;
  font: inherit;
  cursor: pointer;
  line-height: 0;
}
.filter-toggle:hover {
  color: var(--fg);
  border-color: var(--border);
}
.filter-toggle[aria-expanded="true"] {
  color: var(--fg);
  border-color: var(--border);
  background: var(--bg-panel);
}
.filter-toggle.has-active {
  color: var(--accent);
  border-color: var(--border);
}
.filter-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.filter-toggle svg { width: 14px; height: 14px; display: block; }

.menu-panel {
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  min-width: 200px;
  padding: 0.4rem;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(40, 30, 20, 0.08);
  z-index: 10;
}
.menu-panel[hidden] { display: none; }

.menu-section + .menu-section { margin-top: 0.5rem; }
.menu-label {
  padding: 0.4rem 0.6rem 0.3rem;
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-faint);
}

.filter-group {
  display: flex;
  flex-direction: column;
}
.filter-item {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.35rem 0.6rem;
  font-size: 0.9rem;
  border-radius: 4px;
  cursor: pointer;
  color: var(--fg);
}
.filter-item:hover { background: var(--bg); }
.filter-item input[type="checkbox"] {
  accent-color: var(--accent);
  cursor: pointer;
}

.filter-clear {
  display: block;
  width: 100%;
  margin-top: 0.4rem;
  text-align: left;
  font: inherit;
  font-size: 0.82rem;
  padding: 0.45rem 0.6rem;
  background: transparent;
  color: var(--fg-muted);
  border: 0;
  border-top: 1px solid var(--border);
  border-radius: 0 0 4px 4px;
  cursor: pointer;
}
.filter-clear:hover { color: var(--accent); }
.filter-clear:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

/* Category sections */

.category {
  margin: 0 0 3rem;
}
.category h2 {
  margin: 0 0 1.25rem;
  padding: 0 0 0.5rem;
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  border-bottom: 1px solid var(--border);
}
.category:first-of-type h2 { padding-right: 2.5rem; }

.category-intro {
  margin: -0.5rem 0 1.25rem;
  color: var(--fg-muted);
  font-size: 0.95rem;
  line-height: 1.55;
}

.project-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.project {
  margin: 0 0 1.5rem;
}
.project:last-child { margin-bottom: 0; }

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

.project-title {
  color: var(--fg);
  text-decoration: underline;
  text-decoration-color: var(--border);
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  font-weight: 500;
}
.project-title:hover {
  color: var(--accent-hover);
  text-decoration-color: var(--accent);
}
.project-title:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}

.project-meta {
  flex-shrink: 0;
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.78rem;
  color: var(--fg-faint);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.project-desc {
  margin: 0;
  color: var(--fg-muted);
  font-size: 0.95rem;
  line-height: 1.55;
}
.project-desc a {
  color: var(--fg);
  text-decoration: underline;
  text-decoration-color: var(--border);
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}
.project-desc a:hover {
  color: var(--accent-hover);
  text-decoration-color: var(--accent);
}

.loading, .empty {
  color: var(--fg-muted);
  padding: 1rem 0;
}

/* Footer signup */

.signup {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}
.signup h2 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
  font-weight: 600;
}
.signup p {
  margin: 0 0 1rem;
  color: var(--fg-muted);
  font-size: 0.92rem;
}
.signup-form {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.signup-form input[type="email"] {
  flex: 1 1 220px;
  min-width: 0;
  font: inherit;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-panel);
  color: var(--fg);
}
.signup-form input[type="email"]:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}
.signup-form button {
  font: inherit;
  padding: 0.55rem 1rem;
  border: 0;
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  font-weight: 500;
}
.signup-form button:hover { background: var(--accent-hover); }
.signup-form button:disabled { opacity: 0.7; cursor: default; }
@media (max-width: 600px) {
  body { padding: 2.5rem 1rem 3.5rem; }
  .site-header { margin-bottom: 2.5rem; }
  .category { margin-bottom: 2.5rem; }
  .project-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.15rem;
  }
  .project-meta { font-size: 0.78rem; }
}