/* ─────────────────────────────────────────────────────────────
 * components.css — Discrete UI pieces
 *   1. Nav            — fixed header
 *   2. Hero items     — pill, title, lead, actions, stats, btn
 *   3. Marquee        — kinetic divider
 *   4. Toolbar        — search + count
 *   5. Filters        — pill buttons
 *   6. Index (TOC)    — table of contents
 *   7. Chapter bar    — section divider with count
 *   8. Card           — bento entry (+ tones + states)
 *   9. Empty state
 *  10. Footer content
 *  11. Back-to-top button
 *  12. Animations     — @keyframes used by components above
 * ───────────────────────────────────────────────────────────── */


/* ═══════════════════════════════════════════════════════════ */
/*  1 · Nav                                                    */
/* ═══════════════════════════════════════════════════════════ */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  padding: 1rem var(--gutter);
  transition: background var(--dur), padding var(--dur), backdrop-filter var(--dur);
}

.nav.scrolled {
  padding: 0.65rem var(--gutter);
  background: rgba(7, 8, 15, 0.85);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px) saturate(140%);
  -webkit-backdrop-filter: blur(12px) saturate(140%);
}

.nav-inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 2rem;
  max-width: var(--max);
  margin: 0 auto;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.logo-mark {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--violet-500), var(--violet-700));
  box-shadow: 0 4px 14px rgb(var(--accent-solid-rgb) / 0.4);
  color: white;
  font-size: 0.8rem;
  font-weight: 700;
}

/* Brand mark image (DEVLIB book icon) — white-tile look on dark nav */
.logo-mark-img {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  object-fit: cover;
  background: #fff;
  box-shadow: 0 4px 14px rgb(var(--accent-alt-rgb) / 0.25);
}

/* Footer full lockup */
.footer-logo {
  display: block;
  width: auto;
  height: 64px;
  max-width: 100%;
  margin: 0 0 1rem -4px;
  object-fit: contain;
}

.logo b      { color: var(--text); }
.logo span   { color: var(--text-faint); font-weight: 500; }

.nav-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  font-size: var(--t-sm);
  color: var(--text-soft);
}

.nav-links a {
  padding: 0.4rem 0;
  transition: color var(--dur-fast);
}

.nav-links a:hover { color: var(--text); }

/* Scrollspy — current section highlighted as you scroll */
.nav-links a {
  position: relative;
}
.nav-links a.is-active {
  color: var(--text);
}
.nav-links a.is-active::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -3px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--violet-500), var(--cyan-400));
  animation: navInk 0.3s var(--ease) both;
}
@keyframes navInk {
  from { transform: scaleX(0); opacity: 0; }
  to   { transform: scaleX(1); opacity: 1; }
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.1rem;
  background: linear-gradient(135deg, var(--violet-500), var(--violet-700));
  border-radius: 999px;
  color: white;
  font-size: var(--t-sm);
  font-weight: 500;
  box-shadow: 0 4px 14px rgb(var(--accent-solid-rgb) / 0.3);
  transition: box-shadow var(--dur), transform var(--dur);
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 22px rgb(var(--accent-solid-rgb) / 0.45);
}

.nav-cta svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
}


/* ═══════════════════════════════════════════════════════════ */
/*  2 · Hero items                                             */
/* ═══════════════════════════════════════════════════════════ */

/* Animated particle field — behind hero content. Pure transform/
   opacity (compositor thread) → 144fps-safe, zero JS. */
.hero-particles {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}
.hero-particles span {
  position: absolute;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--violet-400);
  opacity: 0;
  animation-name: floatP;
  animation-timing-function: ease-in-out;
  animation-iteration-count: infinite;
}
.hero-particles span:nth-child(3n) { background: var(--cyan-400); width: 2px; height: 2px; }
.hero-particles span:nth-child(4n) { background: var(--pink-400); }
.hero-particles span:nth-child(7n) { width: 4px; height: 4px; }

@keyframes floatP {
  0%   { opacity: 0;    transform: translate3d(0, 0, 0); }
  50%  { opacity: 0.5;  transform: translate3d(0, -24px, 0); }
  100% { opacity: 0;    transform: translate3d(0, 0, 0); }
}

/* Keep hero content above the particle layer (scoped — does not
   touch .hero stacking / horizon glow). */
.hero-pill,
.hero-title,
.hero-lead,
.hero-actions,
.hero-orb {
  position: relative;
  z-index: 1;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1.2rem;
  padding: 0.3rem 0.85rem 0.3rem 0.4rem;
  border: 1px solid var(--border-bright);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-soft);
  font-family: var(--font-mono);
  font-size: var(--t-xs);
  letter-spacing: 0.04em;
  animation: fadeUp 0.8s var(--ease) 0.05s both;
  transition: border-color var(--dur), background var(--dur);
}
.hero-pill:hover {
  border-color: var(--border-glow);
  background: rgb(var(--accent-rgb) / 0.06);
}
.hero-pill-chevron {
  width: 13px;
  height: 13px;
  stroke: var(--text-faint);
  stroke-width: 2.2;
  fill: none;
  transition: transform var(--dur) var(--ease), stroke var(--dur);
}
.hero-pill:hover .hero-pill-chevron {
  transform: translateX(3px);
  stroke: var(--violet-400);
}

.hero-pill .badge {
  padding: 0.15rem 0.5rem;
  background: linear-gradient(135deg, var(--violet-500), var(--cyan-500));
  border-radius: 999px;
  color: white;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.hero-pill b { color: var(--text); font-weight: 600; }

.hero-title {
  max-width: 20ch;
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: var(--t-h1);
  font-weight: 500;
  line-height: 0.98;
  letter-spacing: -0.035em;
  color: var(--text);
}

/* Gradient fade per-word — clip stays off the element that gets the
   scroll filter/transform (avoids WebKit background-clip:text + filter bug). */
.hero-title .word {
  background: linear-gradient(180deg, var(--text) 30%, rgba(245, 245, 247, 0.45) 100%);
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
}

.hero-title .line {
  display: block;
  overflow: hidden;
  padding-bottom: 0.1em;
}

.hero-title .word {
  display: inline-block;
  animation: wordRise 0.9s var(--ease) both;
}

.hero-title .word em {
  font-style: normal;
  background: linear-gradient(120deg, var(--violet-400) 10%, var(--cyan-400) 90%);
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
}

.hero-title .word.muted {
  color: var(--text-dim);
  font-weight: 400;
}

/* Staggered word reveal — uses CSS animation-delay only */
.hero-title .line:nth-child(1) .word:nth-child(1) { animation-delay: 0.10s; }
.hero-title .line:nth-child(1) .word:nth-child(2) { animation-delay: 0.17s; }
.hero-title .line:nth-child(1) .word:nth-child(3) { animation-delay: 0.24s; }
.hero-title .line:nth-child(2) .word:nth-child(1) { animation-delay: 0.31s; }
.hero-title .line:nth-child(2) .word:nth-child(2) { animation-delay: 0.38s; }
.hero-title .line:nth-child(2) .word:nth-child(3) { animation-delay: 0.45s; }

.hero-lead {
  max-width: 56ch;
  margin: 0 0 1.6rem;
  color: var(--text-soft);
  font-size: var(--t-base);
  line-height: 1.55;
  animation: fadeUp 0.8s var(--ease) 0.5s both;
}

.hero-lead b { color: var(--text); font-weight: 500; }
.hero-lead i {
  color: var(--violet-400);
  font-style: normal;
  font-weight: 500;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 2.5rem;
  animation: fadeUp 0.8s var(--ease) 0.65s both;
}

.blueprint-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(0.5rem, 2vw, 1.4rem);
  margin-bottom: clamp(1.5rem, 4vw, 3rem);
  border: 1px solid var(--border);
  background: var(--border);
  overflow: hidden;
  border-radius: var(--radius-lg);
}

.blueprint-card {
  position: relative;
  min-height: 170px;
  padding: 1.35rem;
  background:
    linear-gradient(135deg, rgb(var(--accent-rgb) / 0.08), transparent 58%),
    var(--bg-card);
}

.blueprint-card::after {
  content: '';
  position: absolute;
  inset: auto 1.35rem 1.15rem 1.35rem;
  height: 1px;
  background: linear-gradient(90deg, var(--violet-400), transparent);
  opacity: 0.5;
}

.blueprint-kicker {
  display: inline-flex;
  margin-bottom: 0.75rem;
  color: var(--cyan-400);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.blueprint-card h2 {
  margin: 0 0 0.45rem;
  color: var(--text);
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 1rem + 0.5vw, 1.45rem);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -0.02em;
}

.blueprint-card p {
  margin: 0;
  color: var(--text-soft);
  font-size: var(--t-sm);
  line-height: 1.55;
}

/* Catalog-style home inspired by modern component marketplaces. */
.nav-menu {
  justify-content: center;
  gap: 0.8rem;
}

.nav-group {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.26rem;
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.nav-group > span {
  padding: 0 0.55rem;
  color: var(--text-faint);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-group a {
  padding: 0.42rem 0.62rem;
  border-radius: 9px;
  color: var(--text-soft);
}

.nav-group a:hover,
.nav-group a.is-active {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
}

.nav-group a.is-active::after {
  display: none;
}

.nav-search {
  border: 1px solid var(--border-bright);
  background: rgba(255, 255, 255, 0.045);
  box-shadow: none;
}

.nav-search kbd,
.home-search kbd,
.footer-command kbd {
  padding: 0.1rem 0.36rem;
  border: 1px solid var(--border);
  border-radius: 5px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-faint);
  font-family: var(--font-mono);
  font-size: 0.68rem;
}

.home-catalog {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr) minmax(330px, 430px);
  gap: 1rem;
  align-items: stretch;
  padding-top: clamp(6.2rem, 9vw, 8rem);
  padding-bottom: clamp(1.5rem, 4vw, 3rem);
}

.home-catalog::after {
  opacity: 0.55;
}

.home-rail,
.home-preview,
.home-main {
  position: relative;
  z-index: 1;
}

.home-rail {
  align-self: start;
  display: grid;
  gap: 0.35rem;
  padding: 0.75rem;
  background: rgba(17, 19, 31, 0.62);
  border: 1px solid var(--border);
  border-radius: 16px;
  backdrop-filter: blur(16px);
}

.home-rail-kicker {
  padding: 0.45rem 0.55rem;
  color: var(--text-faint);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.home-rail a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.7rem;
  min-height: 42px;
  padding: 0.55rem 0.65rem;
  border: 1px solid transparent;
  border-radius: 10px;
  color: var(--text-soft);
  font-size: var(--t-sm);
  transition: background var(--dur-fast), border-color var(--dur-fast), color var(--dur-fast);
}

.home-rail a:hover {
  background: rgba(255, 255, 255, 0.055);
  border-color: var(--border);
  color: var(--text);
}

.home-rail b {
  color: var(--text-faint);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
}

.home-main {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 520px;
  padding: clamp(1rem, 3vw, 2rem);
}

.home-main .hero-title {
  max-width: 12ch;
  margin-bottom: 1rem;
}

.home-main .hero-lead {
  max-width: 58ch;
  margin-bottom: 1.1rem;
}

.home-search {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.75rem;
  width: min(100%, 660px);
  min-height: 54px;
  margin: 0 0 1rem;
  padding: 0.62rem 0.8rem;
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid var(--border-bright);
  border-radius: 14px;
  box-shadow: 0 18px 48px -28px rgba(0, 0, 0, 0.75);
}

.home-search svg {
  width: 17px;
  height: 17px;
  stroke: var(--text-faint);
  stroke-width: 2;
  fill: none;
}

.home-search button {
  min-width: 0;
  overflow: hidden;
  border: 0;
  background: transparent;
  color: var(--text-soft);
  text-align: left;
  text-overflow: ellipsis;
  white-space: nowrap;
  cursor: pointer;
}

.home-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.home-preview {
  min-height: 520px;
  padding: 1rem;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), transparent 42%),
    rgba(17, 19, 31, 0.66);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  backdrop-filter: blur(18px);
  box-shadow: 0 28px 80px -50px rgba(0, 0, 0, 0.95);
}

.home-stack {
  display: grid;
  gap: 0.75rem;
  align-content: start;
}

.stack-card,
.stack-grid a {
  position: relative;
  display: grid;
  gap: 0.65rem;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid var(--border);
  border-radius: 14px;
}

.stack-primary {
  min-height: 210px;
  align-content: end;
  background:
    radial-gradient(circle at 12% 0%, rgb(var(--accent-alt-rgb) / 0.18), transparent 36%),
    linear-gradient(135deg, rgb(var(--accent-rgb) / 0.18), transparent 58%),
    rgba(255, 255, 255, 0.045);
}

.stack-kicker {
  color: var(--cyan-400);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.stack-card h2 {
  max-width: 11ch;
  margin: 0;
  color: var(--text);
  font-family: var(--font-display);
  font-size: clamp(1.65rem, 1.2rem + 1.6vw, 2.5rem);
  font-weight: 500;
  line-height: 0.96;
  letter-spacing: -0.035em;
}

.stack-card p {
  max-width: 34ch;
  margin: 0;
  color: var(--text-soft);
  font-size: var(--t-sm);
}

.stack-card > a {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  width: fit-content;
  color: var(--text);
  font-size: var(--t-sm);
  font-weight: 500;
}

.stack-card svg {
  width: 15px;
  height: 15px;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
}

.stack-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.stack-grid a {
  min-height: 118px;
  align-content: space-between;
  transition: transform var(--dur-fast), border-color var(--dur-fast), background var(--dur-fast);
}

.stack-grid a:hover {
  transform: translateY(-2px);
  border-color: var(--border-bright);
  background: rgba(255, 255, 255, 0.065);
}

.stack-grid span {
  color: var(--text);
  font-weight: 500;
}

.stack-grid b {
  color: var(--text-faint);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 400;
  line-height: 1.35;
}

.home-preview-list {
  display: grid;
  gap: 0.45rem;
  margin-top: 0.75rem;
}

.home-preview-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.78rem 0.85rem;
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid var(--border);
  border-radius: 12px;
  transition: background var(--dur-fast), border-color var(--dur-fast), transform var(--dur-fast);
}

.home-preview-list a:hover {
  background: rgba(255, 255, 255, 0.065);
  border-color: var(--border-bright);
  transform: translateY(-1px);
}

.home-preview-list span {
  color: var(--text);
  font-weight: 500;
}

.home-preview-list small {
  color: var(--text-faint);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-align: right;
}

.blueprint-strip a.blueprint-card {
  color: inherit;
}

.footer-menu {
  grid-template-columns: minmax(280px, 1.5fr) repeat(3, minmax(150px, 1fr));
  gap: clamp(1rem, 3vw, 2.5rem);
}

.footer-brand {
  max-width: 420px;
}

.footer-command {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1rem;
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-soft);
  cursor: pointer;
}

.footer-col h4 {
  margin: 0 0 0.8rem;
  color: var(--text);
}

/* Button — base + primary variant */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.2rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-bright);
  border-radius: 999px;
  color: var(--text);
  font-size: var(--t-sm);
  font-weight: 500;
  cursor: pointer;
  transition:
    border-color var(--dur),
    background var(--dur),
    transform var(--dur),
    box-shadow var(--dur);
}

.btn:hover {
  transform: translateY(-2px);
  border-color: var(--border-glow);
  background: rgb(var(--accent-rgb) / 0.08);
  box-shadow: 0 8px 20px -8px rgba(0, 0, 0, 0.4);
}

.btn:active { transform: translateY(0); }

.btn.primary {
  background: linear-gradient(135deg, var(--violet-500), var(--violet-700));
  border-color: transparent;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.15) inset,
    0 6px 18px rgb(var(--accent-solid-rgb) / 0.32);
}

.btn.primary:hover {
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.18) inset,
    0 12px 28px rgb(var(--accent-solid-rgb) / 0.5);
}

.btn svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
}

/* ─── Stats strip — horizontal band between hero and marquee */
.stats-strip {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: rgba(17, 19, 31, 0.4);
  animation: fadeUp 0.8s var(--ease) 0.85s both;
}

.stats-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding-top: 1.1rem;
  padding-bottom: 1.1rem;
  overflow-x: auto;
  scrollbar-width: none;
}
.stats-inner::-webkit-scrollbar { display: none; }

.stat-item {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  white-space: nowrap;
}

.stat-num {
  color: var(--text);
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  display: inline-block;
  min-width: 3ch;
}

.stat-num.gradient {
  background: linear-gradient(120deg, var(--violet-400), var(--cyan-400));
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
}

.stat-num.live  {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text);
  font-size: 1.1rem;
}
.stat-num.small { font-size: 1.2rem; }

/* Pulsing status dot — separated from text color */
.status-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--emerald-400);
  box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.5);
  animation: statusPulse 2.4s ease-in-out infinite;
}
@keyframes statusPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.4); }
  50%      { box-shadow: 0 0 0 6px rgba(52, 211, 153, 0); }
}

.stat-tag {
  color: var(--text-faint);
  font-family: var(--font-mono);
  font-size: var(--t-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.stat-divider {
  flex-shrink: 0;
  width: 1px;
  height: 28px;
  background: var(--border);
}


/* ═══════════════════════════════════════════════════════════ */
/*  3 · Marquee                                                */
/* ═══════════════════════════════════════════════════════════ */
.marquee {
  padding: 1.4rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, black 8%, black 92%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, black 8%, black 92%, transparent);
}

.marquee-track {
  display: inline-flex;
  align-items: center;
  gap: 3rem;
  color: var(--text-soft);
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.6rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  white-space: nowrap;
  animation: marquee 45s linear infinite;
}

.marquee:hover .marquee-track { animation-play-state: paused; }

.marquee-track span[aria-hidden] {
  color: var(--violet-500);
  font-size: 0.7em;
  opacity: 0.6;
}


/* ═══════════════════════════════════════════════════════════ */
/*  4 · Toolbar (search + count)                               */
/* ═══════════════════════════════════════════════════════════ */
.toolbar {
  position: sticky;
  top: 78px;
  z-index: 40;
  display: grid;
  grid-template-columns: minmax(240px, 1fr) auto auto;
  align-items: center;
  gap: 1rem;
  margin: 3rem 0 1.5rem;
  padding: 0.8rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  contain: layout style;
}

.sort-control {
  display: grid;
  gap: 0.2rem;
  color: var(--text-faint);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
}

.sort-control select {
  min-height: 34px;
  padding: 0 2rem 0 0.7rem;
  color: var(--text-soft);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.catalog-state {
  margin: -0.75rem 0 1rem;
  color: var(--text-faint);
  font-family: var(--font-mono);
  font-size: var(--t-xs);
}

.search {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 0.9rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 12px;
  transition: border-color var(--dur), background var(--dur);
}

.search:focus-within {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--violet-500);
}

.search svg {
  width: 14px;
  height: 14px;
  stroke: var(--text-faint);
  stroke-width: 2;
  fill: none;
}

.search input {
  width: 100%;
  background: transparent;
  border: 0;
  outline: 0;
  font-family: var(--font-sans);
  font-size: var(--t-sm);
}

.search input::placeholder { color: var(--text-dim); }

.search kbd {
  padding: 0.15rem 0.45rem;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-faint);
  font-family: var(--font-mono);
  font-size: 0.7rem;
}

.count {
  white-space: nowrap;
  color: var(--text-faint);
  font-family: var(--font-mono);
  font-size: var(--t-xs);
  text-transform: uppercase;
}

.count b {
  margin-right: 0.3em;
  color: var(--violet-400);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}


/* ═══════════════════════════════════════════════════════════ */
/*  5 · Filters                                                */
/* ═══════════════════════════════════════════════════════════ */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  overflow-x: auto;
  scrollbar-width: none;
}

.filters::-webkit-scrollbar { display: none; }

.filter {
  padding: 0.5rem 0.95rem;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text-soft);
  font-size: var(--t-sm);
  font-weight: 500;
  white-space: nowrap;
  cursor: pointer;
  transition:
    color var(--dur-fast),
    border-color var(--dur-fast),
    background var(--dur-fast);
}

.filter:hover {
  color: var(--text);
  border-color: var(--border-bright);
}

.filter.active {
  background: linear-gradient(135deg, var(--violet-500), var(--violet-700));
  border-color: transparent;
  color: white;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.15) inset,
    0 4px 14px rgb(var(--accent-solid-rgb) / 0.35);
}


/* ═══════════════════════════════════════════════════════════ */
/*  6 · Index (TOC)                                            */
/* ═══════════════════════════════════════════════════════════ */
.toc {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem;
  margin: 2rem 0 0;
  padding: 0;
  list-style: none;
  counter-reset: toc;
}

.toc li { display: contents; }

.toc a {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1rem;
  padding: 1.1rem 1.3rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity 0.6s var(--ease),
    transform 0.6s var(--ease),
    border-color var(--dur),
    background var(--dur);
}

.toc a.in {
  opacity: 1;
  transform: translateY(0);
}

.toc a:hover {
  transform: translateY(-3px);
  background: var(--bg-card-hi);
  border-color: var(--border-glow);
  box-shadow:
    0 10px 24px -10px rgba(0, 0, 0, 0.5),
    0 0 0 1px rgb(var(--accent-rgb) / 0.08);
}

.toc a::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(135deg, rgb(var(--accent-rgb) / 0.06), transparent 60%);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur);
}

.toc a:hover::before { opacity: 1; }

.toc-num {
  padding: 0.3rem 0.55rem;
  background: rgb(var(--accent-rgb) / 0.08);
  border: 1px solid var(--border-glow);
  border-radius: 6px;
  color: var(--violet-400);
  font-family: var(--font-mono);
  font-size: var(--t-xs);
  letter-spacing: 0.14em;
  font-variant-numeric: tabular-nums;
}

.toc-meta {
  display: flex;
  flex-direction: column;
  gap: 0.18rem;
  min-width: 0;
}

.toc-name {
  color: var(--text);
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.1;
}

.toc-desc {
  color: var(--text-faint);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  line-height: 1.3;
}

.toc-right {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text-faint);
}

.toc-count {
  font-family: var(--font-mono);
  font-size: var(--t-xs);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
}

.toc-arrow {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
  transition: transform var(--dur), color var(--dur);
}

.toc a:hover .toc-arrow {
  color: var(--violet-400);
  transform: translateX(4px);
}


/* ═══════════════════════════════════════════════════════════ */
/*  7 · Chapter bar                                            */
/* ═══════════════════════════════════════════════════════════ */
.chapter-bar {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--chapter-bar-gap);
  margin: var(--chapter-bar-margin);
  padding: var(--chapter-bar-pad);
  overflow: hidden;
  background:
    radial-gradient(circle at 0% 0%, rgb(var(--accent-rgb) / 0.14), transparent 34%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.015)),
    var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-chapter);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.06) inset,
    0 20px 50px -42px rgb(var(--accent-rgb) / 0.75);
}

.chapter-bar::before {
  content: '';
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: linear-gradient(180deg, var(--violet-400), var(--cyan-400));
  opacity: 0.95;
}

.chapter-bar::after {
  content: attr(data-chapter);
  position: absolute;
  right: var(--chapter-bar-inset);
  bottom: -0.78em;
  color: rgb(var(--accent-rgb) / 0.08);
  font-family: var(--font-display);
  font-size: clamp(3.6rem, 8vw, 6.8rem);
  font-weight: 700;
  line-height: 1;
  text-transform: uppercase;
  pointer-events: none;
}

.chapter-num {
  position: relative;
  isolation: isolate;
  display: inline-grid;
  place-items: center;
  min-width: var(--chapter-stamp-min);
  padding: var(--chapter-stamp-pad);
  overflow: hidden;
  background:
    linear-gradient(135deg, var(--violet-500), var(--violet-700));
  border: 1px solid rgb(var(--accent-rgb) / 0.62);
  border-radius: var(--radius-stamp);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.16) inset,
    0 18px 34px -24px rgb(var(--accent-solid-rgb) / 0.95);
  color: white;
  font-family: var(--font-display);
  font-size: var(--t-chapter);
  font-weight: 600;
  letter-spacing: 0.08em;
  line-height: 1;
  text-transform: uppercase;
  transition:
    border-color var(--dur-fast),
    box-shadow var(--dur-fast),
    transform var(--dur-fast);
}

.chapter-num::before {
  content: '§';
  position: absolute;
  left: var(--chapter-mark-left);
  bottom: var(--chapter-mark-bottom);
  z-index: -1;
  color: rgba(255, 255, 255, 0.18);
  font-family: var(--font-display);
  font-size: var(--t-chapter-mark);
  line-height: 1;
  transform: rotate(-8deg);
}

.chapter-num::after {
  content: '';
  position: absolute;
  right: 0.8rem;
  bottom: 0.42rem;
  width: var(--chapter-rule-width);
  height: 2px;
  background: linear-gradient(90deg, var(--cyan-400), rgba(255, 255, 255, 0.18));
  transform-origin: left center;
  transition: transform var(--dur-fast) var(--ease);
}

@media (hover: hover) and (pointer: fine) {
  .chapter-bar:hover .chapter-num {
    border-color: var(--cyan-400);
    box-shadow:
      0 1px 0 rgba(255, 255, 255, 0.18) inset,
      0 22px 44px -24px rgb(var(--accent-alt-rgb) / 0.75);
    transform: translateX(var(--chapter-hover-shift));
  }

  .chapter-bar:hover .chapter-num::after {
    transform: scaleX(1.45);
  }
}

.chapter-bar h3 {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 0.25rem;
  margin: 0;
  color: var(--text);
  font-family: var(--font-display);
  font-size: var(--t-h4);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.chapter-bar h3 em {
  color: var(--text-soft);
  font-family: var(--font-sans);
  font-size: var(--t-base);
  font-style: normal;
  font-weight: 400;
  line-height: 1.45;
}

.chapter-bar .count-pill {
  position: relative;
  z-index: 1;
  justify-self: end;
  padding: 0.42rem 0.72rem;
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text-soft);
  font-family: var(--font-mono);
  font-size: var(--t-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  white-space: nowrap;
}


/* ═══════════════════════════════════════════════════════════ */
/*  8 · Card                                                   */
/* ═══════════════════════════════════════════════════════════ */
.card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  grid-column: span 2;
  padding: 1.5rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  contain: layout paint style;
  opacity: 0;
  transform: translateY(28px);
  /* Only compositor-friendly props are tweened (opacity/transform).
     border-color is cheap; box-shadow & background-color are applied
     instantly on hover (no per-frame repaint tween → 144fps headroom). */
  transition:
    opacity 0.6s var(--ease),
    transform 0.45s var(--ease),
    border-color var(--dur-fast);
}

.card.in {
  opacity: 1;
  transform: translateY(0);
}

.card:hover {
  transform: translateY(-4px);
  background-color: var(--bg-card-hi);
  border-color: var(--border-glow);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.05) inset,
    0 12px 30px -12px rgba(0, 0, 0, 0.55),
    0 0 0 1px rgb(var(--accent-rgb) / 0.08);
}

/* Dot-pattern texture — fades in on hover (21st.dev/Aceternity signature) */
.card::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image: radial-gradient(
    circle at center,
    rgba(255, 255, 255, 0.05) 1px,
    transparent 1px
  );
  background-size: 7px 7px;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--dur);
}

.card:hover::before { opacity: 1; }

/* Subtle hover gradient overlay */
.card::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
  background: linear-gradient(135deg, rgb(var(--accent-rgb) / 0.10), transparent 60%);
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--dur);
}

.card:hover::after { opacity: 1; }

/* Keep card content above the texture/gradient pseudo-layers */
.card > * { position: relative; z-index: 1; }

/* ── Bento sizes ─────────────────────────────────── */
.card.x2 { grid-column: span 2; }
.card.x3 { grid-column: span 3; }
.card.x4 { grid-column: span 4; }
.card.x6 { grid-column: span 6; }

.card.feature {
  grid-column: span 3;
  grid-row: span 2;
  min-height: 380px;
}

/* ── Card parts ──────────────────────────────────── */
.card-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-faint);
  font-family: var(--font-mono);
  font-size: var(--t-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.card-meta .dot {
  width: 6px;
  height: 6px;
  background: var(--violet-400);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--violet-400);
}

/* Tone variants (data attribute) */
.card[data-tone="cyan"]    .card-meta .dot { background: var(--cyan-400);    box-shadow: 0 0 10px var(--cyan-400); }
.card[data-tone="pink"]    .card-meta .dot { background: var(--pink-400);    box-shadow: 0 0 10px var(--pink-400); }
.card[data-tone="amber"]   .card-meta .dot { background: var(--amber-400);   box-shadow: 0 0 10px var(--amber-400); }
.card[data-tone="emerald"] .card-meta .dot { background: var(--emerald-400); box-shadow: 0 0 10px var(--emerald-400); }

.card-badge {
  padding: 0.25rem 0.55rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text-soft);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.card-title {
  margin: 0;
  color: var(--text);
  font-family: var(--font-display);
  font-size: var(--t-h4);
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.card.feature .card-title {
  margin-bottom: 0.4rem;
  font-size: clamp(1.6rem, 2.5vw, 2.2rem);
}

.card-body {
  flex: 1;
  margin: 0;
  color: var(--text-soft);
  font-size: var(--t-sm);
  line-height: 1.55;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  margin-top: auto;
}

.card-tags span {
  padding: 0.2rem 0.55rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-soft);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: lowercase;
  transition: border-color var(--dur-fast), color var(--dur-fast);
}

/* Code-flavored # prefix — matches the dev audience */
.card-tags span::before {
  content: '#';
  color: var(--violet-400);
  opacity: 0.55;
  margin-right: 1px;
}

.card:hover .card-tags span {
  border-color: var(--border-bright);
  color: var(--text);
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.6rem;
  color: var(--violet-400);
  font-family: var(--font-mono);
  font-size: var(--t-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: gap var(--dur), color var(--dur);
}

.card:hover .card-link {
  gap: 0.7rem;
  color: var(--cyan-400);
}

.card-link svg {
  width: 11px;
  height: 11px;
  stroke: currentColor;
  stroke-width: 2.4;
  fill: none;
  transition: transform var(--dur) var(--ease);
}

/* Subtle arrow lift on card hover */
.card:hover .card-link svg {
  transform: translate(2px, -2px);
}

.card.feature .card-visual {
  margin-top: auto;
  height: 60px;
  opacity: 0.6;
  background:
    linear-gradient(180deg, transparent, rgb(var(--accent-rgb) / 0.06)),
    repeating-linear-gradient(90deg, var(--violet-500) 0 2px, transparent 2px 14px);
  mask-image: linear-gradient(180deg, transparent, black 30%);
}

.card.hidden { display: none; }


/* ═══════════════════════════════════════════════════════════ */
/*  9 · Empty state                                            */
/* ═══════════════════════════════════════════════════════════ */
.empty {
  grid-column: 1 / -1;
  margin-top: 1rem;
  padding: 4rem 2rem;
  border: 1px dashed var(--border-bright);
  border-radius: var(--radius-lg);
  color: var(--text-soft);
  text-align: center;
}

.empty.hidden { display: none; }
.empty b      { color: var(--text); }


/* ═══════════════════════════════════════════════════════════ */
/*  10 · Footer content                                        */
/* ═══════════════════════════════════════════════════════════ */
.footer-grid h4 {
  margin: 0 0 1rem;
  color: var(--text-faint);
  font-family: var(--font-mono);
  font-size: var(--t-xs);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.footer-grid p {
  margin: 0;
  color: var(--text-soft);
  font-size: var(--t-sm);
  line-height: 1.6;
}

.footer-grid .brand {
  margin: 0 0 1rem;
  color: var(--text);
  font-family: var(--font-display);
  font-size: var(--t-h4);
  font-weight: 500;
  letter-spacing: -0.02em;
}

.footer-grid .brand em {
  background: linear-gradient(120deg, var(--violet-400), var(--cyan-400));
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
  font-style: normal;
}

.footer-grid ul {
  display: grid;
  gap: 0.6rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-grid li a {
  color: var(--text-soft);
  font-size: var(--t-sm);
  transition: color var(--dur-fast);
}

.footer-grid li a:hover { color: var(--violet-400); }


/* ═══════════════════════════════════════════════════════════ */
/*  11 · Back-to-top                                           */
/* ═══════════════════════════════════════════════════════════ */
.to-top {
  position: fixed;
  right: 1.5rem;
  bottom: 1.5rem;
  z-index: 60;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  background: var(--bg-card);
  border: 1px solid var(--border-bright);
  border-radius: 50%;
  color: var(--text);
  cursor: pointer;
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
  transition:
    opacity var(--dur) var(--ease),
    transform var(--dur) var(--ease),
    background var(--dur);
}

.to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.to-top:hover {
  background: var(--violet-600);
  border-color: var(--violet-400);
}

.to-top svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
}


/* ═══════════════════════════════════════════════════════════ */
/*  12 · Method (principles list)                              */
/* ═══════════════════════════════════════════════════════════ */
.principles {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin: 2rem 0 0;
  padding: 0;
  list-style: none;
  counter-reset: principle;
}

.principle {
  position: relative;
  padding: 1.6rem 1.8rem 1.6rem 1.6rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--dur), background var(--dur), transform var(--dur);
}

.principle:hover {
  transform: translateY(-2px);
  border-color: var(--border-glow);
  background: var(--bg-card-hi);
}

.principle::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgb(var(--accent-rgb) / 0.06), transparent 60%);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur);
}
.principle:hover::before { opacity: 1; }

.principle-num {
  display: inline-block;
  margin-bottom: 0.6rem;
  background: linear-gradient(120deg, var(--violet-400), var(--cyan-400));
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 500;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

.principle h3 {
  margin: 0 0 0.5rem;
  color: var(--text);
  font-family: var(--font-display);
  font-size: var(--t-h4);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.principle p {
  position: relative;
  margin: 0;
  color: var(--text-soft);
  font-size: var(--t-sm);
  line-height: 1.6;
}


/* ═══════════════════════════════════════════════════════════ */
/*  13 · Animations (consumed by components above)             */
/* ═══════════════════════════════════════════════════════════ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes wordRise {
  from { transform: translateY(110%); }
  to   { transform: translateY(0); }
}

@keyframes marquee {
  to { transform: translate3d(-50%, 0, 0); }
}


/* ═══════════════════════════════════════════════════════════ */
/*  14 · Home redesign (Serendale-style centered hero)         */
/* ═══════════════════════════════════════════════════════════ */

/* HUD frame — thin tech border with corner brackets */
/* Hero — centered composition */
.hero:not(.home-catalog) {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.hero-pill { margin-bottom: 1.4rem; }
.hero:not(.home-catalog) .hero-title {
  max-width: 16ch;
  margin-left: auto;
  margin-right: auto;
}
.hero:not(.home-catalog) .hero-lead {
  max-width: 50ch;
  margin-left: auto;
  margin-right: auto;
}
.hero-lead i { color: var(--violet-300); font-style: normal; font-weight: 500; }
.hero-actions { justify-content: center; }

/* Title: line 1 gradient (archive amber → teal), line 2 solid white */
.hero-title .line-grad .word {
  background: linear-gradient(100deg, var(--violet-300) 0%, var(--violet-400) 54%, var(--cyan-300) 100%);
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
}
.hero-title .line-plain .word {
  background: none;
  color: var(--text);
  -webkit-text-fill-color: currentColor;
}

/* Ghost pill buttons (reference style) */
.btn.ghost {
  padding: 0.7rem 1.6rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.20);
  color: var(--text);
  box-shadow: none;
}
.btn.ghost:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgb(var(--accent-rgb) / 0.55);
  box-shadow: 0 0 24px -6px rgb(var(--accent-rgb) / 0.45);
}

/* Glowing centerpiece — abstract helix echo (no 3D asset) */
.hero-orb {
  position: relative;
  width: min(620px, 88%);
  height: 150px;
  margin: clamp(2rem, 5vw, 3.5rem) auto 0;
}

/* Smooth glide for the cursor-parallax (set via JS) */
@media (hover: hover) and (pointer: fine) {
  .hero-orb,
  .hero-particles {
    transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
  }
}
.hero-orb::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  width: 130%;
  height: 300px;
  transform: translate(-50%, -42%);
  background: radial-gradient(
    ellipse 50% 50% at 50% 50%,
    rgb(var(--accent-rgb) / 0.35) 0%,
    rgb(var(--accent-alt-rgb) / 0.12) 45%,
    transparent 72%
  );
  filter: blur(38px);
  pointer-events: none;
}
.hero-orb-svg {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: visible;
  filter: drop-shadow(0 0 12px rgb(var(--accent-rgb) / 0.55));
  animation: orbFloat 6s ease-in-out infinite;
}
@keyframes orbFloat {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-9px); }
}

/* A soft light gliding along the infinity (offset-path = smooth,
   GPU; one elegant point, not choppy dashes). Hidden if no support. */
.m-spark { opacity: 0; }
@supports (offset-path: path("M0 0")) {
  .m-spark {
    fill: #fff;
    opacity: 0.95;
    offset-path: path("M10 35 C 45 -5, 75 75, 110 35 S 175 -5, 210 35");
    offset-rotate: 0deg;
    filter: drop-shadow(0 0 5px var(--cyan-400)) drop-shadow(0 0 9px var(--violet-400));
    animation: spark 5.5s linear infinite;
  }
  .m-spark2 {
    offset-path: path("M10 35 C 45 75, 75 -5, 110 35 S 175 75, 210 35");
    animation-duration: 7s;
    animation-direction: reverse;
    opacity: 0.7;
  }
}
@keyframes spark {
  from { offset-distance: 0%; }
  to   { offset-distance: 100%; }
}

/* Accent filters (Top estrelas / Recentes) — distinct from categories */
.filter.filter-accent {
  border-color: var(--border-glow);
  color: var(--violet-300);
}
.filter.filter-accent:hover {
  background: rgb(var(--accent-rgb) / 0.10);
  color: var(--violet-300);
  border-color: var(--violet-500);
}
.filter.filter-accent.active {
  background: linear-gradient(135deg, var(--violet-500), var(--violet-700));
  color: #fff;
  border-color: transparent;
}

.hero.home-catalog {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr) minmax(330px, 430px);
  align-items: stretch;
  padding-right: var(--gutter);
  padding-left: var(--gutter);
  text-align: left;
  overflow: hidden;
}

.home-catalog .hero-title,
.home-catalog .hero-lead {
  margin-left: 0;
  margin-right: 0;
}

.marquee {
  max-width: 100vw;
  contain: paint;
  display: none;
}

.aurora {
  display: none;
}