/* playground.css — Main content area, module header, welcome screen.
   Requires: tokens.css */

/* ── Main content panel ──────────────────────────────────────────────────── */
#playground-main {
  flex: 1;
  overflow-y: auto;
  padding: 2.5rem 2rem;
  transition: padding var(--sidebar-transition);
}

#playground-main .inner {
  max-width: 1240px;
  margin: 0 auto;
}

/* ── Module header ───────────────────────────────────────────────────────── */
#module-header {
  text-align: center;
  margin-bottom: 2.5rem;
}

#searchInput:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(91, 138, 245, 0.18);
}

/* ── Back-to-overview breadcrumb ─────────────────────────────────────────── */
.module-back-link {
  font-size: 0.85rem;
  color: var(--text-accent);
  font-weight: 500;
}
.module-back-link:hover {
  color: var(--accent-dark);
  text-decoration: underline !important;
}

.filter-btn.active {
  background: var(--accent) !important;
  color: #fff !important;
  border-color: var(--accent) !important;
}

/* ── Filter controls ──────────────────────────────────────────────────────── */
#filterControls {
  overflow-x: auto;
  flex-wrap: nowrap;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
#filterControls::-webkit-scrollbar { display: none; }

@media (min-width: 769px) {
  #filterControls {
    flex-wrap: wrap;
    overflow-x: visible;
  }
}

/* ── No-results notice ───────────────────────────────────────────────────── */
.no-results { display: none; }

/* ── Welcome screen (empty state) ────────────────────────────────────────── */
#module-empty {
  padding-top: 0.5rem;
}

.welcome-greeting {
  margin-bottom: 2rem;
}
.welcome-greeting h2 {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 0.4rem;
}
.welcome-greeting p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.65;
}

.welcome-section-label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin: 0 0 0.2rem;
}

/* "Where it runs" line under each group heading on the welcome screen */
.welcome-section-blurb {
  font-size: 0.78rem;
  color: var(--text-secondary);
  opacity: 0.85;
  margin: 0 0 0.75rem;
  line-height: 1.5;
  /* max-width: 60ch; */
}

/* Small "where it runs" label — plain text, cards only */
.context-chip {
  display: block;
  margin-top: 0.3rem;
  font-family: var(--font-mono, monospace);
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--text-secondary);
  white-space: nowrap;
}

/* ── Module card grid ────────────────────────────────────────────────────── */
.welcome-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 2rem;
}

.welcome-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1rem 1.1rem;
  cursor: pointer;
  transition: border-color 0.15s, box-shadow 0.15s, transform 0.15s;
  position: relative;
  text-align: left;
  width: 100%;
  font-family: var(--font-sans);
}
.welcome-card:hover {
  border-color: var(--accent);
  box-shadow: 0 4px 14px rgba(91, 138, 245, 0.12);
  transform: translateY(-2px);
}
.welcome-card.disabled {
  opacity: 0.5;
  cursor: default;
  pointer-events: none;
}

.welcome-card-icon {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  margin-bottom: 0.65rem;
  flex-shrink: 0;
}
.welcome-card-icon.clr-blue   { background: #ddeeff; }
.welcome-card-icon.clr-teal   { background: #d8f5ec; }
.welcome-card-icon.clr-purple { background: #eeedfe; }
.welcome-card-icon.clr-amber  { background: #faeeda; }

.welcome-card-title {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 0.25rem;
  line-height: 1.3;
}
.welcome-card-sub {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.5;
}

.welcome-card-dot {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}
.welcome-card-dot.ready { background: #3fae4f; }            /* green — ready */
.welcome-card-dot.soon  { background: #b8bcc4; }            /* grey — in progress */

/* ── Tips row ────────────────────────────────────────────────────────────── */
.welcome-tips {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1rem 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
}
.welcome-tip {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  flex: 1;
  min-width: 160px;
}
.welcome-tip-icon {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  flex-shrink: 0;
  margin-top: 1px;
  font-family: var(--font-mono);
  color: var(--text-secondary);
}
.welcome-tip-text {
  font-size: 0.78rem;
  color: var(--text-secondary);
  line-height: 1.55;
}
.welcome-tip-text strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* ── Mobile adjustments ──────────────────────────────────────────────────── */
@media (max-width: 768px) {
  #playground-main { padding: 1.5rem 1rem; }
  .welcome-grid {
    grid-template-columns: repeat(3, 1fr); /* wide: 3 col */
  }
}

@media (max-width: 480px) {
  .welcome-grid {
    grid-template-columns: repeat(1, 1fr); /* mobile: 1 col */
  }
}