/* Bac Lab Beirut — exam-prep tutoring showcase.
   Notebook UI: grid paper, highlighter marks, ruled cards. Blue ink, yellow marker.
   Lexend (display, 600-700) + Source Serif 4 (body, 400-600).
   Scoped to .baclab / .baclab-page. */
@import url("https://fonts.googleapis.com/css2?family=Lexend:wght@600;700&family=Source+Serif+4:opsz,wght@8..60,400;8..60,500;8..60,600&display=swap");

.baclab,
.baclab-page {
  --bl-bg: #f4f6f8;
  --bl-fg: #0f172a;
  --bl-card: #ffffff;
  --bl-primary: #1d4ed8;
  --bl-primary-fg: #ffffff;
  --bl-secondary: #0f172a;
  --bl-secondary-fg: #f4f6f8;
  --bl-accent: #facc15;
  --bl-accent-fg: #0f172a;
  --bl-wash: #e8eef7;
  --bl-muted-fg: #64748b;
  --bl-border: #d5dde8;
  --bl-success: #16a34a;
  --bl-radius: 0.5rem;
  --bl-shadow: 0 1px 0 var(--bl-border), 0 8px 24px -12px rgba(29, 78, 216, 0.25);
  --bl-shadow-lift: 0 18px 40px -16px rgba(29, 78, 216, 0.45);
  --bl-grad-progress: linear-gradient(90deg, #1d4ed8, #facc15);
  --bl-display: "Lexend", system-ui, -apple-system, "Segoe UI", sans-serif;
  --bl-serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --bl-top: 2.2rem;
}

/* ---------- Page chrome overrides (outside wrapper) ---------- */
.baclab-page { background: var(--bl-bg); color: var(--bl-fg); font-family: var(--bl-serif); position: relative; }
.baclab-page .demo-concept-bar { background: var(--bl-secondary); color: var(--bl-accent); border-bottom: 1px solid rgba(250, 204, 21, 0.35); font-family: var(--bl-display); font-weight: 600; }
.baclab-page .demo-back { position: absolute; top: 3rem; left: 1rem; border-radius: var(--bl-radius); background: var(--bl-card); border: 1px solid var(--bl-border); color: var(--bl-fg); font-family: var(--bl-display); font-weight: 600; backdrop-filter: none; box-shadow: var(--bl-shadow); }
.baclab-page .demo-back:hover { background: var(--bl-accent); color: var(--bl-accent-fg); }
.baclab-page .lang-switch-link { color: var(--bl-muted-fg); font-family: var(--bl-display); }
.baclab-page .lang-switch-link:hover,
.baclab-page .lang-switch-link.is-active { color: var(--bl-primary); }
.baclab-page .lang-switch-sep { color: var(--bl-border); }
.baclab-page .bl-langrow { padding: 1rem 1rem 0.5rem; display: flex; justify-content: flex-end; background: var(--bl-bg); }

/* ---------- Base ---------- */
.baclab {
  font-family: var(--bl-serif);
  font-size: 1.0625rem;
  color: var(--bl-fg);
  background-color: var(--bl-bg);
  background-image:
    linear-gradient(rgba(29, 78, 216, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(29, 78, 216, 0.035) 1px, transparent 1px);
  background-size: 28px 28px;
  line-height: 1.55;
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
  padding-bottom: 6rem;
  position: relative;
}
.baclab *, .baclab *::before, .baclab *::after { box-sizing: border-box; }
.baclab h1, .baclab h2, .baclab h3, .baclab h4 {
  font-family: var(--bl-display);
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.12;
  margin: 0;
  color: inherit;
}
.baclab p { margin: 0; }
.baclab a { color: inherit; text-decoration: none; }
.baclab button, .baclab input { font-family: inherit; color: inherit; }
.baclab button { cursor: pointer; }
.baclab ul { list-style: none; margin: 0; padding: 0; }
.baclab :focus-visible { outline: 2px solid var(--bl-primary); outline-offset: 2px; }
.baclab .bl-dark :focus-visible { outline-color: var(--bl-accent); }
.baclab b, .baclab strong { font-weight: 600; }
.baclab section[id] { scroll-margin-top: calc(var(--bl-top) + 4.5rem); }
.baclab .bl-wrap { max-width: 80rem; margin: 0 auto; padding: 0 1rem; }
.baclab .bl-disp { font-family: var(--bl-display); }
.baclab .bl-muted { color: var(--bl-muted-fg); }
.baclab .bl-pri { color: var(--bl-primary); }
.baclab .bl-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.baclab [hidden] { display: none !important; }
.baclab .bl-num { font-variant-numeric: tabular-nums; }

/* ---------- Utilities: highlighter, grid paper, notebook ---------- */
.baclab .bl-hl {
  background-image: linear-gradient(transparent 56%, var(--bl-accent) 56%, var(--bl-accent) 92%, transparent 92%);
  background-repeat: no-repeat;
  background-size: 100% 100%;
  padding: 0 0.15em;
  margin: 0 -0.15em;
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
  transition: background-size 0.8s cubic-bezier(0.2, 0.7, 0.2, 1) 0.2s;
}
.baclab.bl-js .bl-hl:not(.bl-in) { background-size: 0% 100%; }

.baclab .bl-grid {
  background-color: var(--bl-bg);
  background-image:
    linear-gradient(rgba(29, 78, 216, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(29, 78, 216, 0.08) 1px, transparent 1px),
    linear-gradient(rgba(29, 78, 216, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(29, 78, 216, 0.04) 1px, transparent 1px);
  background-size: 112px 112px, 112px 112px, 28px 28px, 28px 28px;
}

.baclab .bl-nb {
  position: relative;
  background: var(--bl-card);
  border: 1px solid var(--bl-border);
  border-radius: var(--bl-radius);
  box-shadow: var(--bl-shadow);
}
.baclab .bl-nb::before {
  content: "";
  position: absolute; left: 0.75rem; right: 0.75rem; top: 0.3rem; height: 0.4rem;
  background: radial-gradient(circle at 0.3rem 50%, var(--bl-border) 0 0.17rem, transparent 0.2rem) 0 0 / 1.1rem 100% repeat-x;
  pointer-events: none;
  opacity: 0.9;
}
.baclab .bl-nb--pad { padding: 1.5rem 1.25rem 1.25rem; }
.baclab .bl-ruled {
  background-image:
    linear-gradient(90deg, transparent 2.35rem, rgba(250, 204, 21, 0.85) 2.35rem, rgba(250, 204, 21, 0.85) calc(2.35rem + 2px), transparent calc(2.35rem + 2px)),
    repeating-linear-gradient(transparent 0, transparent 1.74rem, rgba(29, 78, 216, 0.09) 1.74rem, rgba(29, 78, 216, 0.09) 1.8rem);
  padding-left: 3.1rem;
}
.baclab .bl-lift { transition: transform 0.25s cubic-bezier(0.2, 0.7, 0.2, 1), box-shadow 0.25s; }
.baclab .bl-lift:hover { transform: translateY(-5px); box-shadow: var(--bl-shadow-lift); }
.baclab .bl-tape {
  position: absolute; top: -0.7rem; left: 1.25rem; z-index: 2;
  background: var(--bl-accent); color: var(--bl-accent-fg);
  font-family: var(--bl-display); font-weight: 700; font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 0.12rem 0.55rem; border-radius: 0.2rem; transform: rotate(-3deg);
  box-shadow: 0 2px 0 rgba(15, 23, 42, 0.12);
}
.baclab .bl-tape--r { left: auto; right: 1.25rem; transform: rotate(3deg); }

.baclab .bl-pulse { position: relative; }
.baclab .bl-pulse::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
  box-shadow: 0 0 0 0 rgba(22, 163, 74, 0.55);
  animation: bl-ring 2s ease-out infinite;
}
.baclab .bl-dot { display: inline-block; width: 0.55rem; height: 0.55rem; border-radius: 50%; background: var(--bl-muted-fg); flex-shrink: 0; }
.baclab .bl-dot--on { background: var(--bl-success); }
@keyframes bl-ring {
  0% { box-shadow: 0 0 0 0 rgba(22, 163, 74, 0.55); }
  80%, 100% { box-shadow: 0 0 0 0.7rem rgba(22, 163, 74, 0); }
}

/* Reveal */
.baclab.bl-js .bl-rv { opacity: 0; transform: translateY(24px); transition: opacity 0.55s cubic-bezier(0.2, 0.7, 0.2, 1), transform 0.55s cubic-bezier(0.2, 0.7, 0.2, 1); transition-delay: var(--d, 0s); }
.baclab.bl-js .bl-rv.bl-in { opacity: 1; transform: none; }

/* Scroll progress */
.baclab .bl-progress {
  position: fixed; left: 0; right: 0; top: var(--bl-top); height: 4px; z-index: 55;
  background: var(--bl-grad-progress); transform-origin: 0 50%; transform: scaleX(0); pointer-events: none;
}

/* ---------- Buttons & chips ---------- */
.baclab .bl-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  font-family: var(--bl-display); font-weight: 600; font-size: 0.95rem; line-height: 1.2;
  padding: 0.75rem 1.35rem; border-radius: var(--bl-radius); border: 1px solid transparent;
  transition: transform 0.15s, box-shadow 0.2s, background 0.15s, color 0.15s;
}
.baclab .bl-btn:active { transform: scale(0.97); }
.baclab .bl-btn--pri { background: var(--bl-primary); color: var(--bl-primary-fg); box-shadow: var(--bl-shadow-lift); }
.baclab .bl-btn--pri:hover { background: #1e40af; transform: translateY(-2px); }
.baclab .bl-btn--ghost { background: var(--bl-card); border-color: var(--bl-secondary); color: var(--bl-fg); }
.baclab .bl-btn--ghost:hover { background: var(--bl-secondary); color: var(--bl-secondary-fg); }
.baclab .bl-btn--acc { background: var(--bl-accent); color: var(--bl-accent-fg); }
.baclab .bl-btn--acc:hover { transform: translateY(-2px); box-shadow: 0 8px 18px -8px rgba(250, 204, 21, 0.9); }
.baclab .bl-btn--wa { background: var(--bl-success); color: #fff; }
.baclab .bl-btn--wa:hover { transform: translateY(-2px); filter: brightness(1.06); }
.baclab .bl-btn--sm { padding: 0.5rem 0.85rem; font-size: 0.85rem; }
.baclab .bl-btn--block { width: 100%; }
.baclab .bl-ico { width: 1.1em; height: 1.1em; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }

.baclab .bl-chip {
  background: var(--bl-card); color: var(--bl-fg); border: 1px solid var(--bl-border); border-radius: 0.375rem;
  padding: 0.38rem 0.8rem; font-family: var(--bl-display); font-weight: 600; font-size: 0.82rem; line-height: 1.25;
  transition: border-color 0.15s, background 0.15s, transform 0.15s;
}
.baclab .bl-chip:hover { border-color: var(--bl-primary); }
.baclab .bl-chip[aria-pressed="true"], .baclab .bl-chip[aria-selected="true"] { background: var(--bl-accent); color: var(--bl-accent-fg); border-color: var(--bl-secondary); }
.baclab .bl-chip.bl-bump { animation: bl-bump 0.3s ease; }
@keyframes bl-bump { 0% { transform: scale(1); } 40% { transform: scale(1.12); } 100% { transform: scale(1); } }
.baclab .bl-chiprow { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; }
.baclab .bl-chiplbl { width: 6rem; font-family: var(--bl-display); font-weight: 600; font-size: 0.8rem; color: var(--bl-muted-fg); text-transform: uppercase; letter-spacing: 0.06em; }

/* ---------- Bars & counters ---------- */
.baclab .bl-barlbl { display: flex; justify-content: space-between; gap: 0.5rem; margin-bottom: 0.25rem; font-size: 0.9rem; }
.baclab .bl-barlbl b { font-family: var(--bl-display); font-weight: 600; font-size: 0.85rem; }
.baclab .bl-bar { position: relative; height: 0.65rem; border-radius: 999px; background: var(--bl-wash); border: 1px solid var(--bl-border); overflow: hidden; }
.baclab .bl-bar > i { position: absolute; inset: 0 auto 0 0; width: var(--v, 0%); border-radius: 999px; background: var(--bl-grad-progress); transition: width 1.2s cubic-bezier(0.2, 0.7, 0.2, 1) var(--bd, 0s); }
.baclab .bl-bar--pri > i { background: var(--bl-primary); }
.baclab .bl-bar--acc > i { background: var(--bl-accent); }
.baclab .bl-bar--thick { height: 0.8rem; }
.baclab .bl-bar > i.bl-before { background: rgba(15, 23, 42, 0.4); transition-duration: 1s; transition-delay: 0s; }
.baclab.bl-js .bl-bar:not(.bl-in) > i { width: 0; }

/* ---------- Nav ---------- */
.baclab .bl-nav { position: sticky; top: var(--bl-top); z-index: 50; border-bottom: 1px solid var(--bl-border); background: rgba(244, 246, 248, 0.92); backdrop-filter: blur(10px); transition: box-shadow 0.2s; }
.baclab .bl-nav.is-stuck { box-shadow: 0 6px 18px -12px rgba(15, 23, 42, 0.35); }
.baclab .bl-nav-in { max-width: 80rem; margin: 0 auto; padding: 0.65rem 1rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.baclab .bl-logo { display: flex; align-items: center; gap: 0.55rem; font-family: var(--bl-display); font-weight: 700; font-size: 1.1rem; }
.baclab .bl-logo-mark { display: grid; place-items: center; width: 2rem; height: 2rem; border-radius: 0.4rem; background: var(--bl-primary); color: var(--bl-primary-fg); font-size: 1rem; box-shadow: 2px 2px 0 var(--bl-accent); }
.baclab .bl-links { display: none; gap: 1.25rem; font-family: var(--bl-display); font-weight: 600; font-size: 0.85rem; }
.baclab .bl-links a { color: var(--bl-muted-fg); padding: 0.25rem 0; border-bottom: 2px solid transparent; transition: color 0.15s, border-color 0.15s; }
.baclab .bl-links a:hover { color: var(--bl-primary); }
.baclab .bl-links a.is-on { color: var(--bl-fg); border-bottom-color: var(--bl-accent); }
.baclab .bl-nav-act { display: flex; align-items: center; gap: 0.5rem; }
.baclab .bl-nav-wa { display: none; }
.baclab .bl-burger { display: grid; place-items: center; width: 2.4rem; height: 2.4rem; border: 1px solid var(--bl-border); border-radius: var(--bl-radius); background: var(--bl-card); }
.baclab .bl-menu { border-top: 1px solid var(--bl-border); background: var(--bl-card); padding: 0.5rem 1rem 1rem; }
.baclab .bl-menu a { display: block; padding: 0.6rem 0; font-family: var(--bl-display); font-weight: 600; border-bottom: 1px dashed var(--bl-border); }
@media (min-width: 640px) { .baclab .bl-nav-wa { display: inline-flex; } }
@media (min-width: 1024px) { .baclab .bl-links { display: flex; } .baclab .bl-burger, .baclab .bl-menu { display: none !important; } }

/* ---------- Sections ---------- */
.baclab .bl-sec { padding: 4.5rem 0; }
.baclab .bl-sec--wash { background: var(--bl-wash); border-top: 1px solid var(--bl-border); border-bottom: 1px solid var(--bl-border); }
.baclab .bl-dark { background: var(--bl-secondary); color: var(--bl-secondary-fg); }
.baclab .bl-head { max-width: 42rem; margin-bottom: 2rem; }
.baclab .bl-kick { font-family: var(--bl-display); font-weight: 600; font-size: 0.75rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--bl-primary); margin-bottom: 0.5rem; }
.baclab .bl-dark .bl-kick { color: var(--bl-accent); }
.baclab .bl-head h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); }
.baclab .bl-head p { margin-top: 0.75rem; font-size: 1.15rem; color: var(--bl-muted-fg); }

/* ---------- Hero ---------- */
.baclab .bl-hero { position: relative; overflow: hidden; border-bottom: 1px solid var(--bl-border); }
.baclab .bl-hero-in { position: relative; display: grid; gap: 2.5rem; padding-top: 3rem; padding-bottom: 3.5rem; }
.baclab .bl-float {
  position: absolute; z-index: 1; display: none; pointer-events: none;
  background: var(--bl-accent); color: var(--bl-accent-fg); padding: 0.2rem 0.55rem; border-radius: 0.3rem;
  font-family: var(--bl-display); font-weight: 600; font-size: 0.72rem; box-shadow: 0 3px 8px -3px rgba(15, 23, 42, 0.4);
  rotate: var(--r, -4deg); animation: bl-float var(--t, 3.4s) ease-in-out infinite;
}
@keyframes bl-float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
.baclab .bl-live { display: inline-flex; align-items: center; gap: 0.5rem; margin-bottom: 1rem; padding: 0.3rem 0.75rem; border: 1px solid var(--bl-border); border-radius: 0.4rem; background: var(--bl-card); font-family: var(--bl-display); font-weight: 600; font-size: 0.78rem; }
.baclab .bl-live .bl-dot { border-radius: 50%; }
.baclab .bl-h1 { font-size: clamp(2.25rem, 5.6vw, 3.9rem); line-height: 1.06; }
.baclab .bl-lead { margin-top: 1.1rem; max-width: 36rem; font-size: 1.2rem; color: var(--bl-muted-fg); }
.baclab .bl-hero-chips { margin-top: 1.5rem; }
.baclab .bl-ctas { margin-top: 1.5rem; display: flex; flex-wrap: wrap; gap: 0.75rem; }
.baclab .bl-hero-pts { margin-top: 1.75rem; display: flex; flex-wrap: wrap; gap: 0.4rem 1.25rem; font-size: 0.92rem; color: var(--bl-muted-fg); }
.baclab .bl-hero-pts li { display: flex; align-items: center; gap: 0.4rem; }
.baclab .bl-hero-pts .bl-ico { color: var(--bl-success); }
@media (min-width: 768px) { .baclab .bl-float { display: block; } }
@media (min-width: 1024px) { .baclab .bl-hero-in { grid-template-columns: 1.15fr 1fr; align-items: center; padding-top: 4.5rem; padding-bottom: 5rem; } }

.baclab .bl-clock { padding: 1.6rem 1.35rem 1.35rem; }
.baclab .bl-clock-name { font-family: var(--bl-display); font-weight: 600; font-size: 1.25rem; min-height: 1.6em; }
.baclab .bl-clock-name.bl-swap { animation: bl-swap 0.35s ease; }
@keyframes bl-swap { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.baclab .bl-cd { margin-top: 0.9rem; display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.5rem; text-align: center; }
.baclab .bl-cd > div { border: 1px solid var(--bl-border); background: var(--bl-wash); border-radius: var(--bl-radius); padding: 0.7rem 0.25rem 0.5rem; }
.baclab .bl-cd b { display: block; font-family: var(--bl-display); font-weight: 700; font-size: clamp(1.7rem, 4vw, 2.1rem); line-height: 1.1; color: var(--bl-primary); font-variant-numeric: tabular-nums; }
.baclab .bl-cd b.bl-tick { animation: bl-tick 0.3s ease; }
@keyframes bl-tick { from { opacity: 0.2; transform: translateY(-10px); } to { opacity: 1; transform: none; } }
.baclab .bl-cd span { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--bl-muted-fg); font-family: var(--bl-display); font-weight: 600; }
.baclab .bl-clock-bars { margin-top: 1.25rem; display: grid; gap: 0.8rem; }
.baclab .bl-stats { margin-top: 1.25rem; padding-top: 1rem; border-top: 1px solid var(--bl-border); display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.5rem; text-align: center; }
.baclab .bl-stats b { display: block; font-family: var(--bl-display); font-weight: 700; font-size: 1.6rem; line-height: 1.1; }
.baclab .bl-stats span { font-size: 0.78rem; color: var(--bl-muted-fg); line-height: 1.25; display: block; }

/* ---------- Trust marquee ---------- */
.baclab .bl-trust { overflow: hidden; background: var(--bl-secondary); color: var(--bl-secondary-fg); border-bottom: 1px solid var(--bl-secondary); padding: 0.8rem 0; }
.baclab .bl-trust-track { display: flex; width: max-content; gap: 2.5rem; padding-right: 2.5rem; font-family: var(--bl-display); font-weight: 600; font-size: 0.85rem; white-space: nowrap; animation: bl-marq 32s linear infinite; }
.baclab .bl-trust:hover .bl-trust-track { animation-play-state: paused; }
.baclab .bl-trust-track span { display: flex; align-items: center; gap: 0.7rem; }
.baclab .bl-trust-track span::before { content: ""; width: 0.5rem; height: 0.5rem; border-radius: 50%; background: var(--bl-accent); }
@keyframes bl-marq { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ---------- Tutors ---------- */
.baclab .bl-filters { margin-bottom: 1.5rem; display: grid; gap: 0.9rem; }
.baclab .bl-count { margin-bottom: 1rem; font-family: var(--bl-display); font-weight: 600; font-size: 0.85rem; color: var(--bl-muted-fg); }
.baclab .bl-count b { color: var(--bl-fg); font-weight: 700; }
.baclab .bl-tgrid { display: grid; gap: 1.25rem; grid-template-columns: 1fr; }
@media (min-width: 640px) { .baclab .bl-tgrid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .baclab .bl-tgrid { grid-template-columns: repeat(4, 1fr); } }
.baclab .bl-tc { padding: 1.5rem 1.15rem 1.15rem; cursor: pointer; display: flex; flex-direction: column; }
.baclab .bl-tc.bl-pop { animation: bl-pop 0.45s cubic-bezier(0.2, 0.7, 0.2, 1) backwards; animation-delay: var(--d, 0s); }
@keyframes bl-pop { from { opacity: 0; transform: translateY(18px) scale(0.96); } to { opacity: 1; transform: none; } }
.baclab .bl-tc.is-sel { outline: 2px solid var(--bl-primary); outline-offset: 2px; }
.baclab .bl-tc-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 0.5rem; }
.baclab .bl-av { display: grid; place-items: center; width: 2.75rem; height: 2.75rem; border-radius: 0.4rem; background: var(--bl-wash); color: var(--bl-primary); border: 1px solid var(--bl-border); font-family: var(--bl-display); font-weight: 700; font-size: 0.95rem; }
.baclab .bl-presence { display: flex; align-items: center; gap: 0.35rem; font-size: 0.78rem; color: var(--bl-muted-fg); }
.baclab .bl-presence.is-on { color: var(--bl-success); }
.baclab .bl-presence.is-on .bl-dot { background: var(--bl-success); box-shadow: 0 0 0 0 rgba(22, 163, 74, 0.55); animation: bl-ring 2s ease-out infinite; }
.baclab .bl-tc h3 { margin-top: 0.75rem; font-size: 1.15rem; }
.baclab .bl-tc-sub { font-size: 0.95rem; }
.baclab .bl-tags { margin-top: 0.5rem; display: flex; flex-wrap: wrap; gap: 0.25rem; }
.baclab .bl-tags span { border: 1px solid var(--bl-border); border-radius: 0.25rem; padding: 0 0.4rem; font-size: 0.75rem; background: var(--bl-bg); }
.baclab .bl-tc .bl-bar-wrap { margin-top: 1rem; }
.baclab .bl-tc-foot { margin-top: 0.85rem; display: flex; align-items: flex-end; justify-content: space-between; gap: 0.5rem; }
.baclab .bl-price { font-family: var(--bl-display); font-weight: 700; font-size: 1.7rem; line-height: 1; }
.baclab .bl-price small { font-family: var(--bl-serif); font-weight: 400; font-size: 0.75rem; color: var(--bl-muted-fg); }
.baclab .bl-tc-meta { text-align: right; font-size: 0.75rem; color: var(--bl-muted-fg); line-height: 1.35; }
.baclab .bl-pick { margin-top: 1rem; width: 100%; padding: 0.55rem; border-radius: var(--bl-radius); border: 1px solid transparent; background: var(--bl-accent); color: var(--bl-accent-fg); font-family: var(--bl-display); font-weight: 600; font-size: 0.85rem; transition: background 0.15s, color 0.15s; }
.baclab .bl-pick[aria-pressed="true"] { background: var(--bl-primary); color: var(--bl-primary-fg); }
.baclab .bl-empty { padding: 2rem 1.25rem; text-align: center; }
.baclab .bl-empty a { color: var(--bl-primary); font-weight: 600; text-decoration: underline; }

/* ---------- Countdown ---------- */
.baclab .bl-exams { display: grid; gap: 1.25rem; }
@media (min-width: 768px) { .baclab .bl-exams { grid-template-columns: repeat(3, 1fr); } }
.baclab .bl-ex { padding: 1.6rem 1.35rem 1.35rem; height: 100%; }
.baclab .bl-ex-cur { font-family: var(--bl-display); font-weight: 600; font-size: 0.72rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--bl-primary); }
.baclab .bl-ex h3 { margin-top: 0.25rem; font-size: 1.15rem; }
.baclab .bl-ex-days { margin-top: 0.9rem; font-family: var(--bl-display); font-weight: 700; font-size: 3.9rem; line-height: 1; font-variant-numeric: tabular-nums; }
.baclab .bl-ex-days small { margin-left: 0.4rem; font-size: 1.05rem; font-weight: 600; color: var(--bl-muted-fg); }
.baclab .bl-ex-hms { font-family: var(--bl-display); font-weight: 600; font-size: 0.9rem; color: var(--bl-muted-fg); font-variant-numeric: tabular-nums; }
.baclab .bl-ex-hms .bl-sec-s { color: var(--bl-primary); }
.baclab .bl-ex-date { margin-top: 0.6rem; font-size: 0.85rem; color: var(--bl-muted-fg); }
.baclab .bl-ex .bl-bar-wrap { margin-top: 1.1rem; }
.baclab .bl-plan { margin-top: 2rem; padding: 1.6rem 1.35rem 1.35rem; }
.baclab .bl-plan h3 { font-size: 1.15rem; margin-bottom: 1rem; }
.baclab .bl-plan-grid { display: grid; gap: 1.25rem; }
@media (min-width: 768px) { .baclab .bl-plan-grid { grid-template-columns: repeat(4, 1fr); } }
.baclab .bl-plan-w { font-family: var(--bl-display); font-weight: 700; font-size: 0.9rem; color: var(--bl-primary); }
.baclab .bl-plan-t { margin-bottom: 0.5rem; font-size: 0.95rem; }

/* ---------- Modes ---------- */
.baclab .bl-tabs { display: flex; gap: 0.5rem; margin-bottom: 1.5rem; }
.baclab .bl-modes { display: grid; gap: 1.25rem; }
@media (min-width: 768px) { .baclab .bl-modes { grid-template-columns: 1fr 1fr; } }
.baclab .bl-panel.bl-slide { animation: bl-slide 0.4s cubic-bezier(0.2, 0.7, 0.2, 1); }
@keyframes bl-slide { from { opacity: 0; transform: translateX(26px); } to { opacity: 1; transform: none; } }
.baclab .bl-modes h3 { font-size: 1.5rem; }
.baclab .bl-pts { margin-top: 1rem; display: grid; gap: 0.75rem; }
.baclab .bl-pts li { display: flex; gap: 0.75rem; align-items: flex-start; }
.baclab .bl-pts li::before { content: ""; margin-top: 0.4rem; width: 0.8rem; height: 0.8rem; flex-shrink: 0; border-radius: 0.15rem; background: var(--bl-accent); box-shadow: 1px 1px 0 var(--bl-secondary); }
.baclab .bl-fill { padding: 1.6rem 1.35rem 1.35rem; background-color: var(--bl-card); background-image: linear-gradient(rgba(29, 78, 216, 0.07) 1px, transparent 1px), linear-gradient(90deg, rgba(29, 78, 216, 0.07) 1px, transparent 1px); background-size: 24px 24px; }
.baclab .bl-big { font-family: var(--bl-display); font-weight: 700; font-size: 3.4rem; line-height: 1.05; color: var(--bl-primary); }
.baclab .bl-fill .bl-bar-wrap { margin-top: 1rem; }
.baclab .bl-fill .bl-btn { margin-top: 1.5rem; }

/* ---------- Pricing ---------- */
.baclab .bl-plans { display: grid; gap: 1.25rem; }
@media (min-width: 768px) { .baclab .bl-plans { grid-template-columns: repeat(3, 1fr); } }
.baclab .bl-pl { height: 100%; padding: 1.6rem 1.35rem 1.35rem; transition: transform 0.25s cubic-bezier(0.2, 0.7, 0.2, 1), box-shadow 0.25s, outline-color 0.2s; outline: 2px solid transparent; outline-offset: 2px; }
.baclab .bl-pl.is-hot { outline-color: var(--bl-primary); }
.baclab .bl-pl.is-tier { box-shadow: 0 0 0 3px var(--bl-accent), var(--bl-shadow-lift); }
.baclab .bl-pl:hover { transform: translateY(-5px); box-shadow: var(--bl-shadow-lift); }
.baclab .bl-pl h3 { font-size: 1.1rem; }
.baclab .bl-pl-price { margin-top: 0.5rem; font-family: var(--bl-display); font-weight: 700; font-size: 3.2rem; line-height: 1; }
.baclab .bl-pl-note { color: var(--bl-muted-fg); font-size: 0.92rem; }
.baclab .bl-pl ul { margin-top: 1rem; display: grid; gap: 0.45rem; font-size: 0.95rem; }
.baclab .bl-pl li { display: flex; gap: 0.5rem; }
.baclab .bl-pl li::before { content: "✓"; color: var(--bl-success); font-weight: 600; }
.baclab .bl-fn { margin-top: 0.75rem; font-size: 0.8rem; color: var(--bl-muted-fg); }
.baclab .bl-calc { margin-top: 1.75rem; padding: 1.6rem 1.35rem 1.35rem; display: grid; gap: 1.5rem; align-items: center; }
@media (min-width: 768px) { .baclab .bl-calc { grid-template-columns: 2fr 1fr; } }
.baclab .bl-calc label { font-family: var(--bl-display); font-weight: 600; }
.baclab .bl-range { margin-top: 0.9rem; width: 100%; accent-color: var(--bl-primary); height: 1.5rem; }
.baclab .bl-scale { display: flex; justify-content: space-between; font-size: 0.75rem; color: var(--bl-muted-fg); font-family: var(--bl-display); font-weight: 600; }
.baclab .bl-calc-out { text-align: right; }
.baclab .bl-calc-out small { display: block; font-size: 0.85rem; color: var(--bl-muted-fg); }
.baclab .bl-total { font-family: var(--bl-display); font-weight: 700; font-size: 2.8rem; line-height: 1.1; color: var(--bl-primary); font-variant-numeric: tabular-nums; }
.baclab .bl-total.bl-bump { animation: bl-bump 0.3s ease; }
.baclab .bl-save { display: inline-block; margin-top: 0.3rem; padding: 0 0.4rem; border-radius: 0.25rem; background: var(--bl-accent); color: var(--bl-accent-fg); font-family: var(--bl-display); font-weight: 600; font-size: 0.78rem; }

/* ---------- Report ---------- */
.baclab .bl-rep { display: grid; gap: 1.5rem; }
@media (min-width: 1024px) { .baclab .bl-rep { grid-template-columns: 1.4fr 1fr; } }
.baclab .bl-rep-card { padding: 1.7rem 1.35rem 1.35rem 3.1rem; }
.baclab .bl-rep-top { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 0.5rem; padding-bottom: 1rem; border-bottom: 1px dashed var(--bl-border); margin-bottom: 1.25rem; }
.baclab .bl-rep-top h3 { font-size: 1.15rem; }
.baclab .bl-rep-top p { font-size: 0.88rem; color: var(--bl-muted-fg); }
.baclab .bl-badge { background: var(--bl-accent); color: var(--bl-accent-fg); border-radius: 0.3rem; padding: 0.15rem 0.55rem; font-family: var(--bl-display); font-weight: 700; font-size: 0.9rem; }
.baclab .bl-scores { display: grid; gap: 1.1rem; }
.baclab .bl-score-l { display: flex; justify-content: space-between; margin-bottom: 0.25rem; font-size: 0.92rem; }
.baclab .bl-score-l span:first-child { font-family: var(--bl-display); font-weight: 600; }
.baclab .bl-score-l b { color: var(--bl-primary); }
.baclab .bl-quote { margin-top: 1.5rem; padding: 0.8rem 1rem; border-left: 4px solid var(--bl-accent); background: var(--bl-wash); border-radius: 0 var(--bl-radius) var(--bl-radius) 0; font-style: italic; font-size: 0.97rem; }
.baclab .bl-rep-side { display: grid; gap: 1.25rem; align-content: start; }
.baclab .bl-rep-side .bl-nb--pad { padding-top: 1.5rem; }
.baclab .bl-rep-dark { background: var(--bl-secondary); color: var(--bl-secondary-fg); border-color: var(--bl-secondary); }
.baclab .bl-rep-dark::before { background: radial-gradient(circle at 0.3rem 50%, rgba(244, 246, 248, 0.25) 0 0.17rem, transparent 0.2rem) 0 0 / 1.1rem 100% repeat-x; }
.baclab .bl-rep-dark b { display: block; font-family: var(--bl-display); font-weight: 700; font-size: 2.6rem; line-height: 1.1; color: var(--bl-accent); }
.baclab .bl-rep-dark span { font-family: var(--bl-display); font-weight: 600; font-size: 0.85rem; }

/* ---------- Book ---------- */
.baclab .bl-book { display: grid; gap: 2.5rem; }
@media (min-width: 1024px) { .baclab .bl-book { grid-template-columns: 1fr 1fr; align-items: center; } }
.baclab .bl-book h2 { font-size: clamp(2rem, 5vw, 3.1rem); }
.baclab .bl-book h2 em { font-style: normal; color: var(--bl-accent); }
.baclab .bl-book-p { margin-top: 1rem; font-size: 1.15rem; opacity: 0.82; max-width: 32rem; }
.baclab .bl-b-stats { margin-top: 1.5rem; display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.75rem; text-align: center; }
.baclab .bl-b-stats > div { border: 1px solid rgba(244, 246, 248, 0.2); border-radius: var(--bl-radius); padding: 0.75rem 0.25rem; }
.baclab .bl-b-stats b { display: block; font-family: var(--bl-display); font-weight: 700; font-size: 1.9rem; line-height: 1.1; color: var(--bl-accent); }
.baclab .bl-b-stats span { font-size: 0.78rem; opacity: 0.7; }
.baclab .bl-form { padding: 1.7rem 1.35rem 1.35rem; color: var(--bl-fg); display: grid; gap: 0.9rem; }
.baclab .bl-sum { display: flex; align-items: center; justify-content: space-between; gap: 0.75rem; padding: 0.7rem 0.85rem; border-radius: var(--bl-radius); background: var(--bl-wash); font-size: 0.92rem; }
.baclab .bl-sum button, .baclab .bl-sum a { font-size: 0.78rem; text-decoration: underline; background: none; border: 0; padding: 0; color: var(--bl-primary); white-space: nowrap; }
.baclab .bl-input { width: 100%; padding: 0.7rem 0.85rem; border: 1px solid var(--bl-border); border-radius: var(--bl-radius); background: var(--bl-card); font-size: 1rem; outline: none; transition: box-shadow 0.15s, border-color 0.15s; }
.baclab .bl-input:focus { border-color: var(--bl-primary); box-shadow: 0 0 0 3px rgba(29, 78, 216, 0.25); }
.baclab .bl-input::placeholder { color: var(--bl-muted-fg); }
.baclab .bl-slots { display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem; }
.baclab .bl-flbl { font-family: var(--bl-display); font-weight: 600; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--bl-muted-fg); margin-bottom: 0.35rem; }
.baclab .bl-form-note { font-size: 0.82rem; color: var(--bl-muted-fg); text-align: center; }
.baclab .bl-ok { padding: 2rem 1rem 1rem; text-align: center; color: var(--bl-fg); }
.baclab .bl-ok:focus { outline: none; }
.baclab .bl-ok-ico { display: grid; place-items: center; width: 4rem; height: 4rem; margin: 0 auto; border-radius: 50%; background: var(--bl-accent); font-family: var(--bl-display); font-weight: 700; font-size: 1.9rem; animation: bl-pop 0.5s cubic-bezier(0.2, 0.7, 0.2, 1); }
.baclab .bl-ok h3 { margin-top: 1rem; font-size: 1.5rem; }
.baclab .bl-ok p { margin-top: 0.5rem; color: var(--bl-muted-fg); }
.baclab .bl-ok .bl-btn { margin-top: 1.5rem; }
.baclab .bl-ok-edit { display: block; width: 100%; margin-top: 0.75rem; background: none; border: 0; text-decoration: underline; font-size: 0.88rem; color: var(--bl-muted-fg); }

/* ---------- FAQ ---------- */
.baclab .bl-faq { max-width: 52rem; margin: 0 auto; padding: 0 1rem; }
.baclab .bl-faq-list { display: grid; gap: 0.75rem; }
.baclab .bl-q { overflow: hidden; }
.baclab .bl-q-btn { display: flex; width: 100%; align-items: center; justify-content: space-between; gap: 1rem; padding: 1.2rem 1.15rem 1.05rem; background: none; border: 0; text-align: left; font-family: var(--bl-display); font-weight: 600; font-size: 1rem; line-height: 1.35; }
.baclab .bl-q-btn i { font-style: normal; font-size: 1.6rem; line-height: 1; color: var(--bl-primary); transition: transform 0.25s; }
.baclab .bl-q.is-open .bl-q-btn i { transform: rotate(45deg); }
.baclab .bl-a { display: grid; grid-template-rows: 0fr; transition: grid-template-rows 0.3s ease; }
.baclab .bl-q.is-open .bl-a { grid-template-rows: 1fr; }
.baclab .bl-a > div { overflow: hidden; }
.baclab .bl-a p { padding: 0 1.15rem 1.2rem; color: var(--bl-muted-fg); }

/* ---------- Footer ---------- */
.baclab .bl-foot { border-top: 1px solid var(--bl-border); background: var(--bl-wash); padding: 3rem 0 2rem; }
.baclab .bl-foot-grid { display: grid; gap: 2rem; }
@media (min-width: 768px) { .baclab .bl-foot-grid { grid-template-columns: 1.3fr 1fr 1fr 1fr; } }
.baclab .bl-foot h4 { font-size: 0.95rem; margin-bottom: 0.5rem; }
.baclab .bl-foot p, .baclab .bl-foot-col { font-size: 0.92rem; color: var(--bl-muted-fg); }
.baclab .bl-foot a.bl-link { color: var(--bl-primary); text-decoration: underline; font-weight: 600; }
.baclab .bl-copy { margin-top: 2.5rem; font-size: 0.78rem; color: var(--bl-muted-fg); }

/* ---------- AnyStack CTA ---------- */
.baclab .bl-anystack { background: var(--bl-primary); color: var(--bl-primary-fg); padding: 4rem 1rem; text-align: center; position: relative; overflow: hidden; }
.baclab .bl-anystack::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(255, 255, 255, 0.07) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.07) 1px, transparent 1px); background-size: 28px 28px; pointer-events: none; }
.baclab .bl-anystack > * { position: relative; }
.baclab .bl-anystack .bl-kick { color: var(--bl-accent); }
.baclab .bl-anystack h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); max-width: 40rem; margin: 0 auto; }
.baclab .bl-anystack p { max-width: 36rem; margin: 1rem auto 1.75rem; font-size: 1.1rem; opacity: 0.9; }

/* ---------- Sticky CTA ---------- */
.baclab .bl-sticky { position: fixed; left: 0; right: 0; bottom: 1rem; z-index: 50; display: flex; justify-content: center; padding: 0 0.75rem; pointer-events: none; transform: translateY(160%); transition: transform 0.4s cubic-bezier(0.2, 0.7, 0.2, 1); }
.baclab .bl-sticky.is-on { transform: none; }
.baclab .bl-sticky-in { pointer-events: auto; display: flex; align-items: center; gap: 0.5rem; width: min(100%, 32.5rem); padding: 0.5rem; border: 1px solid var(--bl-border); border-radius: 0.6rem; background: var(--bl-card); box-shadow: var(--bl-shadow-lift); }
.baclab .bl-sticky-wa { display: grid; place-items: center; width: 2.75rem; height: 2.75rem; flex-shrink: 0; border-radius: var(--bl-radius); background: var(--bl-success); color: #fff; font-family: var(--bl-display); font-weight: 700; font-size: 0.85rem; }
.baclab .bl-sticky-txt { display: none; flex: 1; font-size: 0.85rem; line-height: 1.25; color: var(--bl-muted-fg); }
.baclab .bl-sticky-txt b { font-family: var(--bl-display); font-weight: 600; color: var(--bl-fg); }
.baclab .bl-sticky-in .bl-btn { flex: 1; }
@media (min-width: 640px) { .baclab .bl-sticky-txt { display: block; } .baclab .bl-sticky-in .bl-btn { flex: none; padding-left: 1.5rem; padding-right: 1.5rem; } }

/* ---------- Confetti canvas ---------- */
.bl-confetti { position: fixed; inset: 0; width: 100%; height: 100%; pointer-events: none; z-index: 9999; }

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  .baclab *, .baclab *::before, .baclab *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .baclab.bl-js .bl-rv { opacity: 1; transform: none; }
  .baclab.bl-js .bl-hl:not(.bl-in) { background-size: 100% 100%; }
  .baclab.bl-js .bl-bar:not(.bl-in) > i { width: var(--v, 0%); }
  .baclab .bl-trust { overflow-x: auto; }
  .baclab .bl-trust-track { width: auto; flex-wrap: wrap; white-space: normal; }
  .baclab .bl-trust-track [aria-hidden="true"] { display: none; }
  .baclab .bl-pulse::after { display: none; }
  .baclab .bl-sticky { transition: none; }
}

/* ============================================================
   Bac Lab — motion pass (additive, look-preserving)
   ============================================================ */
/* Scribble under hero h1 */
.baclab .bl-hero-in { position: relative; }
.baclab .bl-scribble {
  position: absolute; left: 1rem; bottom: 0.4rem; width: 9rem; height: 0.9rem;
  background: var(--bl-accent);
  clip-path: polygon(0 40%, 8% 10%, 22% 60%, 38% 20%, 52% 70%, 68% 25%, 84% 65%, 100% 30%, 96% 90%, 78% 70%, 62% 95%, 46% 70%, 30% 92%, 14% 68%, 2% 88%);
  opacity: 0.85; pointer-events: none;
  transform: scaleX(0); transform-origin: 0 50%;
  transition: transform 0.9s cubic-bezier(0.2, 0.7, 0.2, 1) 0.4s;
}
.baclab.bl-js .bl-scribble { transform: scaleX(1); }
@media (min-width: 1024px) {
  .baclab .bl-scribble { left: 3.1rem; bottom: 2.2rem; width: 12rem; }
}
/* Ruler rule sliding on the hero grid */
.baclab .bl-ruler {
  position: absolute; right: -2rem; top: 55%; width: 22rem; height: 1px;
  background: repeating-linear-gradient(90deg, var(--bl-primary) 0 6px, transparent 6px 14px);
  opacity: 0.25; transform: rotate(-14deg);
  animation: bl-ruler-drift 9s ease-in-out infinite;
  pointer-events: none;
}
@keyframes bl-ruler-drift {
  0%, 100% { transform: rotate(-14deg) translateX(0); }
  50% { transform: rotate(-14deg) translateX(-1.5rem); }
}
@media (max-width: 767px) { .baclab .bl-ruler { display: none; } }
/* Countdown ticker under hero clock bars */
.baclab .bl-ticker {
  position: relative; margin-top: 0.9rem; height: 6px;
  border-radius: 999px; background: var(--bl-wash);
  border: 1px solid var(--bl-border); overflow: hidden;
}
.baclab .bl-ticker i {
  position: absolute; left: 0; top: 0; bottom: 0; width: 34%;
  background: linear-gradient(90deg, transparent, var(--bl-accent), transparent);
  transform: translateX(0);
  transition: transform 2.2s cubic-bezier(0.45, 0, 0.2, 1);
  opacity: 0.9;
}
/* Ring pulse around countdown cards */
.baclab .bl-ex { position: relative; overflow: visible; }
.baclab .bl-ex-ring {
  position: absolute; inset: -4px; border-radius: calc(var(--bl-radius) + 4px);
  border: 2px solid transparent;
  pointer-events: none;
  background: linear-gradient(90deg, var(--bl-accent), var(--bl-primary)) border-box;
  -webkit-mask: linear-gradient(#000 0 0) padding-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  opacity: 0;
}
.baclab .bl-rv.bl-in .bl-ex-ring,
.baclab .bl-ex.bl-in .bl-ex-ring {
  animation: bl-ring-sweep 4.5s ease-in-out infinite;
}
@keyframes bl-ring-sweep {
  0%, 100% { opacity: 0; }
  45% { opacity: 0.55; }
  55% { opacity: 0.55; }
}
/* Stamp on matched tutors */
.baclab .bl-countrow {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  margin-bottom: 1rem;
}
.baclab .bl-countrow .bl-count { margin-bottom: 0; }
.baclab .bl-stamp {
  font-family: var(--bl-display); font-weight: 700; font-size: 0.72rem;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--bl-primary); border: 2px solid var(--bl-primary);
  border-radius: 0.3rem; padding: 0.15rem 0.55rem;
  transform: rotate(-6deg) scale(0.6); opacity: 0;
  transition: transform 0.5s cubic-bezier(0.2, 0.9, 0.2, 1), opacity 0.4s;
}
.baclab .bl-stamp.bl-stamp--go {
  opacity: 1; transform: rotate(-6deg) scale(1);
  animation: bl-stamp-thump 0.55s cubic-bezier(0.2, 0.7, 0.2, 1);
}
@keyframes bl-stamp-thump {
  0% { transform: rotate(-6deg) scale(0.6); }
  55% { transform: rotate(-6deg) scale(1.15); }
  100% { transform: rotate(-6deg) scale(1); }
}
/* Price plan stamps */
.baclab .bl-pl { position: relative; overflow: hidden; }
.baclab .bl-pl-stamp {
  position: absolute; right: -2.2rem; top: 1.3rem;
  font-family: var(--bl-display); font-weight: 700; font-size: 0.7rem;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--bl-primary); border: 1.5px solid var(--bl-primary);
  padding: 0.1rem 2rem; transform: rotate(45deg);
  opacity: 0; transition: opacity 0.4s 0.2s;
  pointer-events: none;
}
.baclab .bl-pl:hover .bl-pl-stamp,
.baclab .bl-pl.is-tier .bl-pl-stamp { opacity: 0.7; }
/* Live badge for report */
.baclab .bl-badge--live { position: relative; }
.baclab .bl-badge--live::after {
  content: ""; position: absolute; inset: -3px; border-radius: 0.4rem;
  box-shadow: 0 0 0 0 rgba(250, 204, 21, 0.65);
  animation: bl-badge-ping 2.4s ease-out infinite;
  pointer-events: none;
}
@keyframes bl-badge-ping {
  0% { box-shadow: 0 0 0 0 rgba(250, 204, 21, 0.65); }
  80%, 100% { box-shadow: 0 0 0 0.9rem rgba(250, 204, 21, 0); }
}
/* Gauge in modes */
.baclab .bl-fill { position: relative; }
.baclab .bl-gauge {
  position: absolute; top: 1rem; right: 1rem; width: 3rem; height: 3rem;
  opacity: 0.7;
}
.baclab .bl-gauge svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.baclab .bl-gauge circle {
  fill: none; stroke: var(--bl-wash); stroke-width: 4;
}
.baclab .bl-gauge .bl-gauge-arc {
  stroke: var(--bl-primary); stroke-linecap: round;
  stroke-dasharray: 113;
  stroke-dashoffset: 113;
  transition: stroke-dashoffset 1.6s cubic-bezier(0.2, 0.7, 0.2, 1);
}
.baclab .bl-gauge .bl-gauge-arc { stroke-dashoffset: calc(113 - (113 * var(--p)) / 100); }
/* Ink fields */
.baclab .bl-field { position: relative; }
.baclab .bl-ink {
  position: absolute; left: 0.85rem; right: 0.85rem; bottom: 0.4rem; height: 1px;
  background: var(--bl-primary); transform: scaleX(0); transform-origin: 0 50%;
  transition: transform 0.35s cubic-bezier(0.2, 0.7, 0.2, 1);
  pointer-events: none;
}
.baclab .bl-field:focus-within .bl-ink { transform: scaleX(1); }
/* Slow-breathe the primary CTA (subtle) */
.baclab .bl-btn--pri { position: relative; }
.baclab .bl-btn--pri::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit;
  box-shadow: 0 0 0 0 rgba(29, 78, 216, 0.35);
  animation: bl-cta-breathe 3.6s ease-in-out infinite;
  pointer-events: none;
}
@keyframes bl-cta-breathe {
  0%, 100% { box-shadow: 0 0 0 0 rgba(29, 78, 216, 0.35); }
  50% { box-shadow: 0 0 0 0.55rem rgba(29, 78, 216, 0); }
}
/* Sticky CTA — new hover toy */
.baclab .bl-sticky-in { transition: transform 0.25s, box-shadow 0.25s; }
.baclab .bl-sticky-in:hover { transform: translateY(-2px); box-shadow: var(--bl-shadow-lift); }
/* Reduced-motion fallbacks */
@media (prefers-reduced-motion: reduce) {
  .baclab .bl-scribble,
  .baclab .bl-stamp { opacity: 1; transform: none; }
  .baclab .bl-scribble { transform: scaleX(1); }
  .baclab .bl-stamp { transform: rotate(-6deg) scale(1); }
  .baclab .bl-ruler,
  .baclab .bl-ex-ring,
  .baclab .bl-gauge,
  .baclab .bl-ticker { display: none; }
  .baclab .bl-btn--pri::after { animation: none; box-shadow: none; }
  .baclab .bl-badge--live::after { display: none; }
}