/* ============================================================
   EXPERIMENTS CSS
   Extracted from style.css — only loaded on Experiment templates
   (archive-experiment.php, single-experiment.php).
   ============================================================ */

/* ============================================================
   EXPERIMENTS — Lab archive + single
   ============================================================ */

/* ── Dark hero card ── */
.rb-exp-hero {
  background: #111318;
  border-radius: var(--rb-radius-lg);
  border: 1px solid rgba(255,255,255,.08);
  padding: 52px 56px;
  position: relative;
  overflow: hidden;
}
/* Dot grid background */
.rb-exp-hero::before {
  content: '';
  position: absolute; inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
}
/* Amber glow */
.rb-exp-hero::after {
  content: '';
  position: absolute;
  bottom: -60px; left: -60px;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(255,170,0,.12) 0%, transparent 70%);
  pointer-events: none;
}
.rb-exp-eyebrow {
  font-family: var(--rb-font-mono);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--rb-amber);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  position: relative;
  z-index: 1;
}
.rb-exp-eyebrow::before { content: ''; display: inline-block; width: 24px; height: 2px; background: var(--rb-amber) }
.rb-exp-hero-title {
  font-family: var(--rb-font-display);
  font-size: clamp(2.2rem, 4.5vw, 3.4rem);
  font-weight: 700;
  color: #fff;
  line-height: 1.1;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}
.rb-exp-hero-title em { font-style: normal; color: var(--rb-amber) }
.rb-exp-hero-sub {
  font-size: 1rem;
  color: rgba(255,255,255,.55);
  max-width: 520px;
  font-weight: 300;
  line-height: 1.7;
  margin-bottom: 32px;
  position: relative;
  z-index: 1;
}

/* Meta stats row */
.rb-exp-hero-meta {
  display: flex;
  align-items: center;
  gap: 28px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,.1);
  position: relative;
  z-index: 1;
  flex-wrap: wrap;
}
.rb-exp-meta-stat { text-align: center }
.rb-exp-meta-num {
  font-family: 'Roboto', sans-serif;
  font-weight: 900;
  font-size: 2rem;
  color: var(--rb-amber);
  line-height: 1;
  display: block;
}
.rb-exp-meta-label {
  font-family: var(--rb-font-mono);
  font-size: .7rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: rgba(255,255,255,.4);
  margin-top: 2px;
}
.rb-exp-meta-divider { width: 1px; height: 40px; background: rgba(255,255,255,.12) }
.rb-exp-status-key { display: flex; gap: 16px; flex-wrap: wrap; margin-left: auto }
.rb-exp-dot {
  display: flex;
  align-items: center;
  gap: 7px;
  font-family: var(--rb-font-mono);
  font-size: .72rem;
  letter-spacing: .06em;
  color: rgba(255,255,255,.45);
}
.rb-exp-dot::before { content: ''; width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0 }
.rb-exp-dot--active::before   { background: #4CAF50; box-shadow: 0 0 8px rgba(76,175,80,.6) }
.rb-exp-dot--complete::before { background: var(--rb-amber) }
.rb-exp-dot--paused::before   { background: rgba(255,255,255,.3) }
.rb-exp-dot--idea::before     { background: #7B8EFF }

/* ── Filter bar ── */
.rb-exp-filter-bar { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 28px }
.rb-exp-filter-pill {
  padding: 6px 16px;
  border-radius: 100px;
  font-family: var(--rb-font-mono);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  border: 1.5px solid var(--rb-border);
  background: transparent;
  color: var(--rb-grey-dark);
  cursor: pointer;
  transition: all 0.22s ease;
}
.rb-exp-filter-pill:hover,
.rb-exp-filter-pill.active {
  background: var(--rb-dark);
  border-color: var(--rb-dark);
  color: #fff;
}

/* ── Experiment card grid ── */
.rb-exp-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--rb-gutter);
}

/* ── Experiment card ── */
.rb-exp-card {
  background: var(--rb-white);
  border-radius: var(--rb-radius);
  border: 1px solid var(--rb-border);
  box-shadow: var(--rb-shadow-sm);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: box-shadow 0.22s ease, transform 0.22s ease;
}
.rb-exp-card:hover { box-shadow: 0 4px 20px rgba(0,0,0,.10); transform: translateY(-3px) }

/* Status colour bar */
.rb-exp-card-bar { height: 4px; width: 100% }
.rb-exp-card-bar--active   { background: linear-gradient(90deg, #4CAF50, #8BC34A) }
.rb-exp-card-bar--complete { background: var(--rb-amber) }
.rb-exp-card-bar--paused   { background: var(--rb-border) }
.rb-exp-card-bar--idea     { background: linear-gradient(90deg, #7B8EFF, #B8C5FF) }

.rb-exp-card-body { padding: 22px 24px; flex: 1; display: flex; flex-direction: column; gap: 12px }

.rb-exp-card-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 8px }
.rb-exp-card-category {
  font-family: var(--rb-font-mono);
  font-size: .68rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--rb-grey-mid);
}

/* Status badge */
.rb-exp-badge {
  font-family: var(--rb-font-mono);
  font-size: .64rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 100px;
  flex-shrink: 0;
}
.rb-exp-badge--active   { background: #E8F5E9; color: #2E7D32 }
.rb-exp-badge--complete { background: var(--rb-amber-light); color: var(--rb-amber-dark) }
.rb-exp-badge--paused   { background: var(--rb-card-alt); color: var(--rb-grey-mid) }
.rb-exp-badge--idea     { background: #EEF0FF; color: #4A5AE0 }

.rb-exp-card-title {
  font-family: var(--rb-font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--rb-dark);
  line-height: 1.3;
}
.rb-exp-card-title a { color: inherit; text-decoration: none }
.rb-exp-card-desc { font-size: .88rem; color: var(--rb-grey-dark); flex: 1 }

/* What I Learned callout */
.rb-exp-learned {
  background: var(--rb-card-alt);
  border-left: 3px solid var(--rb-amber);
  padding: 8px 12px;
  border-radius: 0 var(--rb-radius-sm) var(--rb-radius-sm) 0;
}
.rb-exp-learned-label {
  font-family: var(--rb-font-mono);
  font-size: .64rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--rb-amber-dark);
  margin-bottom: 2px;
}
.rb-exp-learned-text { font-size: .82rem; color: var(--rb-grey-dark) }

/* Tech stack chips */
.rb-exp-stack { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 4px }
.rb-exp-chip {
  font-family: var(--rb-font-mono);
  font-size: .68rem;
  letter-spacing: .06em;
  background: var(--rb-card-alt);
  border: 1px solid var(--rb-border);
  border-radius: 6px;
  padding: 2px 8px;
  color: var(--rb-grey-dark);
}

/* Card action links footer */
.rb-exp-card-links {
  display: flex;
  gap: 10px;
  padding: 14px 24px;
  border-top: 1px solid var(--rb-border);
  background: var(--rb-card-alt);
}
.rb-exp-link {
  font-family: var(--rb-font-mono);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--rb-amber-dark);
  padding: 5px 12px;
  border-radius: var(--rb-radius-sm);
  border: 1.5px solid var(--rb-amber);
  transition: all 0.22s ease;
  text-decoration: none;
}
.rb-exp-link:hover { background: var(--rb-amber); color: #fff }
.rb-exp-link--ghost { color: var(--rb-grey-mid); border-color: var(--rb-border) }
.rb-exp-link--ghost:hover { background: var(--rb-dark); border-color: var(--rb-dark); color: #fff }


/* ── Section label ── */
.rb-exp-section-label {
  font-family: var(--rb-font-mono);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--rb-grey-mid);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.rb-exp-section-label::after { content: ''; flex: 1; height: 1px; background: var(--rb-border) }

/* ── Featured grid (first card spans 2 cols) ── */
.rb-exp-featured-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--rb-gutter);
}
.rb-exp-featured-grid .rb-exp-card:first-child { grid-column: 1 / 3 }
.rb-exp-featured-grid .rb-exp-card:first-child .rb-exp-card-title { font-size: 1.3rem }
.rb-exp-featured-grid .rb-exp-card:first-child .rb-exp-card-desc  { font-size: .95rem }

/* ── Ideas Queue (dark card) ── */
.rb-exp-ideas-queue {
  background: #111318;
  border-radius: var(--rb-radius);
  border: 1px solid rgba(255,255,255,.06);
  padding: 28px 32px;
  position: relative;
  overflow: hidden;
}
.rb-exp-ideas-queue::before {
  content: '';
  position: absolute; inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 22px 22px;
  pointer-events: none;
}
.rb-exp-ideas-title {
  font-family: var(--rb-font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
  position: relative;
  z-index: 1;
}
.rb-exp-ideas-title span {
  font-family: var(--rb-font-mono);
  font-size: .75rem;
  color: var(--rb-grey-mid);
  font-weight: 400;
}
.rb-exp-idea-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255,255,255,.06);
  position: relative;
  z-index: 1;
}
.rb-exp-idea-item:last-child { border-bottom: none }
.rb-exp-idea-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #7B8EFF;
  flex-shrink: 0;
}
.rb-exp-idea-name {
  font-family: var(--rb-font-display);
  font-size: .92rem;
  font-weight: 600;
  color: rgba(255,255,255,.8);
}
.rb-exp-idea-tag {
  font-family: var(--rb-font-mono);
  font-size: .65rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 4px;
  background: rgba(255,255,255,.07);
  color: rgba(255,255,255,.4);
  margin-left: auto;
}

/* ── AI Lab crosslink card ── */
.rb-exp-crosslink {
  background: var(--rb-white);
  border-radius: var(--rb-radius);
  border: 1px solid var(--rb-border);
  box-shadow: var(--rb-shadow-sm);
  padding: 28px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.rb-exp-crosslink-eyebrow {
  font-family: var(--rb-font-mono);
  font-size: .7rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--rb-amber-dark);
  margin-bottom: 6px;
  font-weight: 700;
}
.rb-exp-crosslink-title {
  font-family: var(--rb-font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--rb-dark);
  margin-bottom: 6px;
}
.rb-exp-crosslink-sub { font-size: .88rem; color: var(--rb-grey-dark) }

/* ── Responsive additions ── */
@media (max-width: 1100px) {
  .rb-exp-featured-grid { grid-template-columns: 1fr 1fr }
  .rb-exp-featured-grid .rb-exp-card:first-child { grid-column: 1 / -1 }
  .rb-exp-crosslink { flex-direction: column; align-items: flex-start }
}
@media (max-width: 600px) {
  .rb-exp-featured-grid { grid-template-columns: 1fr }
  .rb-exp-featured-grid .rb-exp-card:first-child { grid-column: auto }
  .rb-exp-ideas-queue { padding: 20px 22px }
}

/* ── Responsive ── */
@media (max-width: 1100px) {
  .rb-exp-grid { grid-template-columns: repeat(2, 1fr); }
  .rb-exp-hero { padding: 36px 32px }
  .rb-exp-hero-meta { gap: 18px }
}
@media (max-width: 600px) {
  .rb-exp-grid { grid-template-columns: 1fr; }
  .rb-exp-hero { padding: 28px 24px }
  .rb-exp-meta-divider { display: none }
  .rb-exp-status-key { margin-left: 0 }
}