/* bittwo design system — components
   All component CSS lives here. Requires tokens.css + base.css.
   See design-system/README.md for usage examples. */

/* ──────────── wordmark ──────────── */
.bt-wordmark {
  display: inline-flex;
  align-items: baseline;
  gap: 0.05em;
  font-size: var(--bt-fs-xl);
  font-weight: var(--bt-fw-semibold);
  letter-spacing: -0.01em;
  color: var(--bt-fg);
}

.bt-wordmark .bt-wordmark-sep {
  opacity: 0.4;
}

.bt-cursor {
  display: inline-block;
  width: 0.55em;
  height: 1.05em;
  background: var(--bt-amber);
  vertical-align: -0.15em;
  animation: bt-blink var(--bt-blink-dur) steps(1) infinite;
}

@keyframes bt-blink { 50% { opacity: 0; } }

@media (prefers-reduced-motion: reduce) {
  .bt-cursor { animation: none; opacity: 1; }
}

/* ──────────── topbar ──────────── */
.bt-topbar {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-bottom: var(--bt-space-6);
  margin-bottom: var(--bt-space-8);
  border-bottom: 1px solid var(--bt-line-strong);
}

.bt-nav {
  display: flex;
  gap: var(--bt-space-6);
  font-size: var(--bt-fs-md);
  letter-spacing: var(--bt-tracking-ui);
  text-transform: uppercase;
  color: var(--bt-dim-stronger);
}

.bt-nav a:hover { color: var(--bt-amber); }

/* ──────────── footer ──────────── */
.bt-footer {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-top: var(--bt-space-8);
  padding-top: var(--bt-space-5);
  border-top: 1px solid var(--bt-line-strong);
  font-size: var(--bt-fs-sm);
  letter-spacing: var(--bt-tracking-ui);
  color: var(--bt-dim-stronger);
}

.bt-footer a:hover { color: var(--bt-amber); }

/* ──────────── prompt ──────────── */
.bt-prompt {
  font-family: var(--bt-font-mono);
}

.bt-prompt-sigil {
  color: var(--bt-green);
  opacity: 0.7;
  margin-right: 0.5ch;
}

.bt-prompt-cmd {
  color: var(--bt-fg);
}

.bt-prompt-out {
  margin-top: var(--bt-space-2);
}

.bt-prompt-out p {
  margin: 0 0 var(--bt-space-2);
  max-width: 56ch;
  color: var(--bt-dim-stronger);
}

/* ──────────── directory listing + row ──────────── */
.bt-dir-listing {
  margin: var(--bt-space-2) 0 0;
}

.bt-dir-row {
  display: grid;
  grid-template-columns: 8ch 11ch 1fr 3ch;
  gap: var(--bt-space-5);
  padding: var(--bt-space-2) 0;
  border-bottom: 1px dashed var(--bt-line-dashed);
  align-items: baseline;
  cursor: pointer;
  transition: background var(--bt-hover-dur);
  color: var(--bt-fg);
}

.bt-dir-row:hover { background: var(--bt-hover-tint); }
.bt-dir-row:last-child { border-bottom: none; }

.bt-dir-row-perms { opacity: 0.55; font-size: var(--bt-fs-base); }
.bt-dir-row-name  { color: var(--bt-amber); font-weight: var(--bt-fw-medium); }
.bt-dir-row-desc  { color: var(--bt-dim-stronger); font-size: var(--bt-fs-base); }
.bt-dir-row-arrow { color: var(--bt-amber); opacity: 0.5; text-align: right; }

.bt-dir-row:hover .bt-dir-row-arrow { opacity: 1; }

/* ──────────── work grid + work card ──────────── */
.bt-work-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--bt-space-3);
  margin: var(--bt-space-3) 0 0;
}

@media (max-width: 720px) {
  .bt-work-grid { grid-template-columns: 1fr; }
}

@media (max-width: 1024px) and (min-width: 721px) {
  .bt-work-grid { grid-template-columns: repeat(2, 1fr); }
}

.bt-work-card {
  display: block;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--bt-line-strong);
  overflow: hidden;
  transition: border-color 0.15s;
  color: inherit;
}

.bt-work-card:hover { border-color: rgba(240, 165, 0, 0.5); }

.bt-work-card-img {
  height: 92px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(232, 227, 212, 0.25);
  font-size: var(--bt-fs-sm);
  letter-spacing: var(--bt-tracking-ui);
  border-bottom: 1px solid var(--bt-line);
  background: #1a1612;
}

.bt-work-card-meta {
  padding: var(--bt-space-2) var(--bt-space-3);
}

.bt-work-card-tag {
  font-size: var(--bt-fs-xs);
  letter-spacing: var(--bt-tracking-tag);
  text-transform: uppercase;
  color: var(--bt-amber);
  opacity: 0.85;
}

.bt-work-card-title {
  font-size: var(--bt-fs-md);
  margin: var(--bt-space-1) 0 0;
  line-height: var(--bt-lh-tight);
  color: var(--bt-fg);
}

/* ──────────── audience callout ──────────── */
.bt-callout {
  margin: var(--bt-space-6) 0 0;
  padding: var(--bt-space-3) var(--bt-space-4);
  border-left: 2px solid var(--bt-amber);
  background: rgba(240, 165, 0, 0.03);
  font-size: var(--bt-fs-base);
  line-height: var(--bt-lh-body);
}

.bt-callout-who {
  color: var(--bt-amber);
}

.bt-callout-detail {
  color: var(--bt-dim-stronger);
  margin-left: 0.25em;
}