/* ============================================================
   TBB Pages: animated SVG art + hero layout (bundle "art")
   Used by components/art/*.php. Pure SVG + CSS keyframes, no JS
   except art.js, which pauses art that is off screen. Colours come
   from the --s-* tokens in variables.css. Under reduced motion all
   art is still and shows its final state.
   ============================================================ */

.tbb-page .tbb-svg { overflow: visible; fill: none; stroke-linecap: round; stroke-linejoin: round; }
.tbb-page .tbb-svg text { font-family: var(--tbb-font); stroke: none; }
.tbb-page .tbb-svg .s-line   { fill: none; stroke: var(--s-line); stroke-width: 1.5; }
.tbb-page .tbb-svg .s-thick  { stroke-width: 3; }
.tbb-page .tbb-svg .s-stroke { fill: none; stroke: var(--s-fg); stroke-width: 2; }
.tbb-page .tbb-svg .s-card   { fill: var(--s-card); stroke: var(--s-line); stroke-width: 1; }
.tbb-page .tbb-svg .s-node   { fill: var(--s-panel); stroke: var(--s-line-strong); stroke-width: 1; }
.tbb-page .tbb-svg .s-soft   { fill: var(--s-hl-soft); }
.tbb-page .tbb-svg .s-bar    { fill: var(--s-fg); opacity: .75; }
.tbb-page .tbb-svg .s-bar--muted { fill: var(--s-muted); opacity: .5; }
.tbb-page .tbb-svg .s-glyph  { fill: none; stroke: var(--s-fg); stroke-width: 1.6; }
.tbb-page .tbb-svg .s-label  { fill: var(--s-fg); font-size: 15px; font-weight: 600; }
.tbb-page .tbb-svg .s-small  { fill: var(--s-muted); font-size: 11px; font-weight: 500; }
.tbb-page .tbb-svg .s-mono   { fill: var(--s-fg); font-family: var(--tbb-font-mono); font-size: 12px; font-weight: 500; }
.tbb-page .tbb-svg .s-mono--lg { font-size: 17px; }

/* Hero */
.tbb-page .tbb-svg .s-orbit {
  transform-box: view-box;
  transform-origin: 280px 280px;
  animation: tbb-spin 60s linear infinite;
}
.tbb-page .tbb-svg .s-orbit--rev { animation-duration: 40s; animation-direction: reverse; }
.tbb-page .tbb-svg .s-pulse {
  fill: none;
  stroke: var(--s-hl);
  stroke-width: 3;
  stroke-dasharray: .08 .92;
  stroke-dashoffset: 1;
  animation: tbb-pulse 3.2s linear infinite;
  animation-delay: calc(var(--n, 0) * .8s);
}
.tbb-page .tbb-svg .s-rung {
  transform-box: fill-box;
  transform-origin: center;
  animation: tbb-helix 4s ease-in-out infinite;
  animation-delay: calc(var(--n, 0) * -.33s);
}
.tbb-page .tbb-svg .s-rung__bar { stroke: var(--s-line-strong); stroke-width: 2; }
.tbb-page .tbb-svg .s-rung__a   { fill: var(--s-hl); }
.tbb-page .tbb-svg .s-rung__b   { fill: var(--s-fg); }
.tbb-page .tbb-svg .s-node__dot { fill: var(--s-hl-soft); stroke: var(--s-line-strong); stroke-width: 1; }
.tbb-page .tbb-svg .s-ping {
  fill: none;
  stroke: var(--s-hl);
  stroke-width: 1.5;
  opacity: 0;
  transform-box: fill-box;
  transform-origin: center;
  animation: tbb-ping 3.2s ease-out infinite;
  animation-delay: calc(var(--n, 0) * .8s + 1.6s);
}

/* Lab tools */
.tbb-page .tbb-svg .s-liquid {
  fill: var(--s-hl-soft);
  stroke: var(--s-hl);
  stroke-width: 1.5;
  animation: tbb-wave 2.4s linear infinite;
}
.tbb-page .tbb-svg .s-bubble {
  fill: none;
  stroke: var(--s-hl);
  stroke-width: 1.5;
  opacity: 0;
  animation: tbb-bubble 2.7s ease-in infinite;
  animation-delay: calc(var(--n, 0) * -.9s);
}
.tbb-page .tbb-svg .s-drop { fill: var(--s-hl); opacity: 0; animation: tbb-drop 2.4s ease-in infinite; }
.tbb-page .tbb-svg .s-cycle { animation: tbb-cycle 6s infinite; animation-delay: calc(var(--n, 0) * -3s); }

/* Jobs */
.tbb-page .tbb-svg .s-draw {
  fill: none;
  stroke: var(--s-hl);
  stroke-width: 3;
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  animation: tbb-draw 7s linear infinite;
}
.tbb-page .tbb-svg .s-stage {
  fill: var(--s-hl);
  opacity: 0;
  animation-duration: 7s;
  animation-iteration-count: infinite;
  animation-timing-function: linear;
}
.tbb-page .tbb-svg .s-arrive { opacity: 0; animation: tbb-stage-4 7s linear infinite; }

/* News */
.tbb-page .tbb-svg .s-live { fill: var(--s-ok); }
.tbb-page .tbb-svg .s-live--ping {
  transform-box: fill-box;
  transform-origin: center;
  animation: tbb-ping 2s ease-out infinite;
}
.tbb-page .tbb-svg .s-feed { animation: tbb-feed 9s cubic-bezier(.65, 0, .35, 1) infinite; }

/* Courses */
.tbb-page .tbb-svg .s-ok-row  { fill: none; stroke: var(--s-ok); stroke-width: 1.2; opacity: 0; animation: tbb-ok 6s infinite; }
.tbb-page .tbb-svg .s-ok-dot  { fill: var(--s-ok); opacity: 0; animation: tbb-ok 6s infinite; }
.tbb-page .tbb-svg .s-ok-tick {
  fill: none;
  stroke: var(--s-on-ok);
  stroke-width: 1.8;
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  animation: tbb-tick 6s infinite;
}
.tbb-page .tbb-svg .s-ring-track { fill: none; stroke: var(--s-line); stroke-width: 6; }
.tbb-page .tbb-svg .s-ring {
  fill: none;
  stroke: var(--s-fg);
  stroke-width: 6;
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  animation: tbb-ring 6s infinite;
}

/* Pause art that is off screen (toggled by art.js) */
.tbb-page .tbb-svg.is-off,
.tbb-page .tbb-svg.is-off * { animation-play-state: paused; }

@keyframes tbb-spin   { to { transform: rotate(360deg); } }
@keyframes tbb-pulse  { to { stroke-dashoffset: 0; } }
@keyframes tbb-helix  { 0%, 100% { transform: scaleX(1); } 50% { transform: scaleX(-1); } }
@keyframes tbb-ping   { 0% { opacity: .7; transform: scale(1); } 100% { opacity: 0; transform: scale(1.9); } }
@keyframes tbb-wave   { to { transform: translateX(-40px); } }
@keyframes tbb-bubble { 0% { opacity: 0; transform: translateY(0); } 15% { opacity: 1; } 100% { opacity: 0; transform: translateY(-48px); } }
@keyframes tbb-drop   { 0% { opacity: 0; transform: translateY(0); } 10% { opacity: 1; } 60% { opacity: 1; transform: translateY(74px); } 66%, 100% { opacity: 0; transform: translateY(78px); } }
@keyframes tbb-cycle  { 0%, 45% { opacity: 1; } 50%, 95% { opacity: 0; } 100% { opacity: 1; } }
@keyframes tbb-draw   { 0% { stroke-dashoffset: 1; opacity: 1; } 60% { stroke-dashoffset: 0; } 90% { stroke-dashoffset: 0; opacity: 1; } 100% { stroke-dashoffset: 0; opacity: 0; } }
@keyframes tbb-stage-0 { 0% { opacity: 0; } 2%, 90% { opacity: 1; } 96%, 100% { opacity: 0; } }
@keyframes tbb-stage-1 { 0%, 14% { opacity: 0; } 16%, 90% { opacity: 1; } 96%, 100% { opacity: 0; } }
@keyframes tbb-stage-2 { 0%, 29% { opacity: 0; } 31%, 90% { opacity: 1; } 96%, 100% { opacity: 0; } }
@keyframes tbb-stage-3 { 0%, 44% { opacity: 0; } 46%, 90% { opacity: 1; } 96%, 100% { opacity: 0; } }
@keyframes tbb-stage-4 { 0%, 59% { opacity: 0; } 61%, 90% { opacity: 1; } 96%, 100% { opacity: 0; } }
@keyframes tbb-feed   { 0%, 22% { transform: translateY(0); } 33%, 55% { transform: translateY(-42px); } 66%, 88% { transform: translateY(-84px); } 100% { transform: translateY(-126px); } }
@keyframes tbb-ok     { 0%, 20% { opacity: 0; } 26%, 88% { opacity: 1; } 94%, 100% { opacity: 0; } }
@keyframes tbb-tick   { 0%, 24% { stroke-dashoffset: 1; opacity: 1; } 32%, 88% { stroke-dashoffset: 0; opacity: 1; } 94%, 100% { stroke-dashoffset: 0; opacity: 0; } }
@keyframes tbb-ring   { 0%, 30% { stroke-dashoffset: 1; } 70%, 88% { stroke-dashoffset: .2; } 96%, 100% { stroke-dashoffset: 1; } }

/* ── Hero layout: copy left, art right (homepage, About) ───────────────────────────────────── */
.tbb-page .tbb-hero { position: relative; padding-top: 24px; }
.tbb-page .tbb-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  z-index: -1;
  height: 640px;
  background: radial-gradient(55% 45% at 50% 35%, rgb(253 186 116 / .16), transparent 70%);
  pointer-events: none;
}
.tbb-page .tbb-hero__layout { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: 32px; align-items: center; }
.tbb-page .tbb-hero__copy { display: flex; flex-direction: column; align-items: flex-start; gap: 10px; }
.tbb-page .tbb-hero__title {
  margin-top: 6px;
  font-size: 42px;
  font-weight: 600;
  line-height: 44px;
  letter-spacing: -.025em;
  color: var(--tbb-fg);
  text-wrap: balance;
}
.tbb-page .tbb-hero__lead { margin-top: 16px; max-width: 768px; font-size: 16px; line-height: 1.65; color: var(--tbb-muted); }

.tbb-page .tbb-badge-glint { position: relative; display: inline-flex; width: fit-content; padding: 1px; overflow: hidden; border-radius: 9999px; }
.tbb-page .tbb-badge-glint__spin {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 300px;
  height: 20px;
  border-radius: 9999px;
  background: linear-gradient(to right, transparent, transparent, #f97316);
  transform: translate(-50%, -50%);
  animation: tbb-glint-spin 4s linear infinite;
}
.tbb-page .tbb-badge-glint__text {
  position: relative;
  z-index: 1;
  padding: 8px 16px;
  border-radius: 9999px;
  background: var(--tbb-badge-bg);
  color: var(--tbb-badge-fg);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.25;
}
@keyframes tbb-glint-spin { to { transform: translate(-50%, -50%) rotate(360deg); } }

@media (min-width: 640px) {
  .tbb-page .tbb-hero { padding-top: 32px; }
  .tbb-page .tbb-hero__copy { gap: 16px; }
  .tbb-page .tbb-hero__lead { margin-top: 24px; }
}
@media (min-width: 768px) {
  .tbb-page .tbb-hero__title { font-size: 60px; line-height: 1.05; }
  .tbb-page .tbb-hero__lead  { font-size: 20px; }
}
@media (min-width: 1024px) {
  .tbb-page .tbb-hero__title { font-size: 72px; }
}

/* Art inside a card (feature rows) */
.tbb-page .tbb-art { padding: 12px; }
.tbb-page .tbb-art .tbb-svg { display: block; width: 100%; height: auto; }

/* Hero art: centred, edges faded */
.tbb-page .tbb-hero__media {
  -webkit-mask-image: radial-gradient(60% 60% at 50% 50%, #000 70%, transparent);
          mask-image: radial-gradient(60% 60% at 50% 50%, #000 70%, transparent);
}
.tbb-page .tbb-hero__media .tbb-svg { display: block; width: 100%; max-width: 460px; height: auto; margin-inline: auto; }

@media (max-width: 767px) {
  .tbb-page .tbb-hero__layout { grid-template-columns: minmax(0, 1fr); }
  .tbb-page .tbb-hero__media .tbb-svg { max-width: 360px; }
  .tbb-page .tbb-hero__media {
    -webkit-mask-image: radial-gradient(75% 75% at 50% 50%, #000 75%, transparent);
            mask-image: radial-gradient(75% 75% at 50% 50%, #000 75%, transparent);
  }
}
@media (max-width: 639px) {
  /* The hero art scales down a lot on phones: keep node labels legible */
  .tbb-page .tbb-art-hero .s-label { font-size: 17px; }
}

@media (prefers-reduced-motion: reduce) {
  .tbb-page .tbb-svg *,
  .tbb-page .tbb-badge-glint__spin { animation: none !important; }
  .tbb-page .tbb-svg .s-pulse,
  .tbb-page .tbb-svg .s-ping,
  .tbb-page .tbb-svg .s-live--ping,
  .tbb-page .tbb-svg .s-bubble,
  .tbb-page .tbb-svg .s-drop { display: none; }
  .tbb-page .tbb-svg .s-stage,
  .tbb-page .tbb-svg .s-arrive,
  .tbb-page .tbb-svg .s-ok-row,
  .tbb-page .tbb-svg .s-ok-dot { opacity: 1; }
  .tbb-page .tbb-svg .s-draw,
  .tbb-page .tbb-svg .s-ok-tick { stroke-dashoffset: 0; }
  .tbb-page .tbb-svg .s-ring { stroke-dashoffset: .2; }
  .tbb-page .tbb-svg .s-cycle[style*="--n:1"] { opacity: 0; }
}