:root {
  --c-desktop:   #00ff9d;
  --c-rolling:   #ffd60a;
  --c-server:    #58a6ff;
  --c-security:  #ff4d6d;
  --c-minimal:   #8b949e;
  --c-immutable: #c084fc;
}

/* NAV */
nav {
  border-bottom: 1px solid var(--border);
  padding: 18px 0;
}
nav .inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
nav a {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-decoration: none;
  color: var(--muted);
  transition: color 0.2s;
  cursor: none;
}
nav a:hover { color: var(--accent); }
nav .logo { color: var(--accent) !important; font-weight: 600; }

/* PAGE WRAPPER */
.page {
  max-width: 960px;
  margin: 0 auto;
  padding: 56px 24px 96px;
}

/* HEADER */
.page-header {
  margin-bottom: 40px;
  animation: fadeIn 0.4s ease both;
}
.page-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--dim);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
h1 {
  font-family: var(--font-mono);
  font-size: clamp(1.8rem, 5vw, 2.8rem);
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.03em;
  margin-bottom: 12px;
}
h1 span { color: var(--accent); }
.page-subtitle {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--muted);
  font-style: italic;
  line-height: 1.6;
  max-width: 560px;
}

/* FILTER BAR */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
  animation: fadeIn 0.4s ease 0.1s both;
}
.filter-btn {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 99px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  cursor: none;
  transition: all 0.18s;
}
.filter-btn:hover { border-color: var(--dim); color: var(--text); }
.filter-btn.active[data-filter="all"]       { background: rgba(255,255,255,0.06); border-color: var(--dim); color: var(--text); }
.filter-btn.active[data-filter="desktop"]   { background: rgba(0,255,157,0.1);  border-color: rgba(0,255,157,0.35);  color: var(--c-desktop); }
.filter-btn.active[data-filter="rolling"]   { background: rgba(255,214,10,0.1); border-color: rgba(255,214,10,0.35); color: var(--c-rolling); }
.filter-btn.active[data-filter="server"]    { background: rgba(88,166,255,0.1); border-color: rgba(88,166,255,0.35); color: var(--c-server); }
.filter-btn.active[data-filter="security"]  { background: rgba(255,77,109,0.1); border-color: rgba(255,77,109,0.35); color: var(--c-security); }
.filter-btn.active[data-filter="minimal"]   { background: rgba(139,148,158,0.1); border-color: rgba(139,148,158,0.35); color: var(--c-minimal); }
.filter-btn.active[data-filter="immutable"] { background: rgba(192,132,252,0.1); border-color: rgba(192,132,252,0.35); color: var(--c-immutable); }

.result-count {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--dim);
  letter-spacing: 0.06em;
  margin-bottom: 24px;
  animation: fadeIn 0.4s ease 0.15s both;
}

/* GRID */
.distro-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 10px;
  animation: fadeIn 0.4s ease 0.2s both;
}

/* CARD */
.distro-card {
  display: block;
  text-decoration: none;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px 20px;
  transition: all 0.2s;
  cursor: none;
  position: relative;
  overflow: hidden;
}
.distro-card::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  border-radius: 4px 0 0 4px;
  transition: background 0.2s;
}
.distro-card:hover { background: var(--surface2); transform: translateY(-2px); }

.distro-card.cat-desktop::before   { background: var(--c-desktop); }
.distro-card.cat-rolling::before   { background: var(--c-rolling); }
.distro-card.cat-server::before    { background: var(--c-server); }
.distro-card.cat-security::before  { background: var(--c-security); }
.distro-card.cat-minimal::before   { background: var(--c-minimal); }
.distro-card.cat-immutable::before { background: var(--c-immutable); }

.distro-card.cat-desktop:hover   { border-color: rgba(0,255,157,0.25); }
.distro-card.cat-rolling:hover   { border-color: rgba(255,214,10,0.25); }
.distro-card.cat-server:hover    { border-color: rgba(88,166,255,0.25); }
.distro-card.cat-security:hover  { border-color: rgba(255,77,109,0.25); }
.distro-card.cat-minimal:hover   { border-color: rgba(139,148,158,0.25); }
.distro-card.cat-immutable:hover { border-color: rgba(192,132,252,0.25); }

.card-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 8px;
}
.card-name {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
}
.cat-badge {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 99px;
  border: 1px solid;
  flex-shrink: 0;
}
.cat-badge.cat-desktop   { color: var(--c-desktop);   border-color: rgba(0,255,157,0.3);  background: rgba(0,255,157,0.06); }
.cat-badge.cat-rolling   { color: var(--c-rolling);   border-color: rgba(255,214,10,0.3); background: rgba(255,214,10,0.06); }
.cat-badge.cat-server    { color: var(--c-server);    border-color: rgba(88,166,255,0.3); background: rgba(88,166,255,0.06); }
.cat-badge.cat-security  { color: var(--c-security);  border-color: rgba(255,77,109,0.3); background: rgba(255,77,109,0.06); }
.cat-badge.cat-minimal   { color: var(--c-minimal);   border-color: rgba(139,148,158,0.3); background: rgba(139,148,158,0.06); }
.cat-badge.cat-immutable { color: var(--c-immutable); border-color: rgba(192,132,252,0.3); background: rgba(192,132,252,0.06); }

.card-desc {
  font-family: var(--font-body);
  font-size: 0.83rem;
  color: var(--muted);
  line-height: 1.55;
  margin-bottom: 12px;
}
.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 14px;
}
.card-tag {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.06em;
  color: var(--dim);
  background: var(--surface2);
  border: 1px solid var(--border);
  padding: 2px 7px;
  border-radius: 3px;
}
.card-link {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.06em;
  color: var(--dim);
  transition: color 0.2s;
}
.distro-card:hover .card-link { color: var(--text); }

/* FOOTER */
.page-footer {
  margin-top: 64px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-note {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--dim);
  letter-spacing: 0.06em;
  max-width: 420px;
  line-height: 1.6;
}
.back-link {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--muted);
  text-decoration: none;
  letter-spacing: 0.06em;
  transition: color 0.2s;
  cursor: none;
}
.back-link:hover { color: var(--accent); }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

@media (max-width: 600px) {
  .distro-grid { grid-template-columns: 1fr; }
  .page { padding: 40px 20px 72px; }
}