/* ============================================================================
   BadBot.net — marketing site styles
   Design tokens mirror the BadBot Gateway app: slate-900 base, indigo→violet
   accent, slate cards & borders. Hand-written (no Tailwind build, no CDN).
   ========================================================================== */

/* Typography uses the OS system font stack to match the Gateway app exactly.
   Self-hosted Inter remains in assets/fonts + assets/css/fonts.css if a distinct
   web font is ever wanted again (re-add: @import url('./fonts.css'); + font-family). */

/* ---- Design tokens --------------------------------------------------------- */
:root {
  /* Surfaces (Tailwind slate scale) */
  --bb-bg:            rgb(15 23 42);      /* slate-900 */
  --bb-bg-2:          rgb(2 6 23);        /* slate-950 — deeper sections */
  --bb-surface:       rgb(30 41 59);      /* slate-800 */
  --bb-surface-soft:  rgb(30 41 59 / .6); /* slate-800/60 — cards */
  --bb-surface-glass: rgb(30 41 59 / .9); /* slate-800/90, matches Gateway nav */
  --bb-border:        rgb(51 65 85);      /* slate-700 */
  --bb-border-soft:   rgb(51 65 85 / .6);

  /* Text */
  --bb-text:          rgb(241 245 249);   /* slate-100 */
  --bb-text-muted:    rgb(203 213 225);   /* slate-300 */
  --bb-text-dim:      rgb(148 163 184);   /* slate-400 */
  --bb-text-faint:    rgb(130 143 163);   /* slate ~450 — ≥4.5:1 on slate-950 for WCAG AA */

  /* Accent — indigo → violet (matches the app progress bar gradient) */
  --bb-indigo:        rgb(99 102 241);    /* indigo-500 */
  --bb-indigo-600:    rgb(79 70 229);     /* indigo-600 */
  --bb-indigo-400:    rgb(129 140 248);   /* indigo-400 */
  --bb-violet:        rgb(139 92 246);    /* violet-500 */
  --bb-violet-400:    rgb(167 139 250);   /* violet-400 */
  --bb-accent-grad:   linear-gradient(90deg, rgb(99 102 241), rgb(139 92 246));
  --bb-accent-grad-br:linear-gradient(135deg, rgb(99 102 241), rgb(139 92 246));

  /* Risk / feedback palette (matches app toast accents) */
  --bb-emerald:       rgb(52 211 153);    /* low risk */
  --bb-amber:         rgb(245 158 11);    /* medium risk */
  --bb-orange:        rgb(249 115 22);    /* high risk */
  --bb-red:           rgb(248 113 113);   /* critical risk */
  --bb-blue:          rgb(96 165 250);

  /* Shape & motion */
  --bb-radius:        0.85rem;
  --bb-radius-lg:     1.15rem;
  --bb-radius-sm:     0.5rem;
  --bb-shadow:        0 24px 48px -28px rgb(2 6 23 / .9);
  --bb-shadow-glow:   0 30px 60px -30px rgb(99 102 241 / .45);
  --bb-maxw:          72rem;
  --bb-ease:          cubic-bezier(.22, 1, .36, 1);

  color-scheme: dark;
}

/* ---- Reset ----------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  /* Always reserve the scrollbar gutter so navigating between a short and a tall
     page (or to the Gateway) never shifts centred content sideways. */
  scrollbar-gutter: stable;
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  /* Same system font stack as the Gateway app (Tailwind font-sans) so the two
     properties render identically. System fonts are local, no CDN. */
  font-family: ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
  background: var(--bb-bg);
  color: var(--bb-text);
  line-height: 1.6;
  font-size: 1rem;
  overflow-x: hidden;
  min-height: 100vh;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; padding: 0; }
:focus-visible {
  outline: 2px solid var(--bb-indigo-400);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ---- Layout primitives ----------------------------------------------------- */
.bb-container {
  width: 100%;
  max-width: var(--bb-maxw);
  margin-inline: auto;
  padding-inline: 1rem; /* matches the Gateway's px-4 exactly */
}
.bb-section { padding-block: clamp(3.5rem, 8vw, 7rem); position: relative; }
.bb-section--tight { padding-block: clamp(2.5rem, 5vw, 4rem); }
.bb-section-head { max-width: 54rem; margin-bottom: 3rem; }
.bb-section-head--center { margin-inline: auto; text-align: center; }

.bb-eyebrow {
  display: inline-block;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--bb-indigo-400);
  margin-bottom: 1rem;
}

/* ---- Typography ------------------------------------------------------------ */
h1, h2, h3, h4 { line-height: 1.12; letter-spacing: -0.02em; font-weight: 700; color: #fff; }
h2 { font-size: clamp(1.7rem, 3.6vw, 2.6rem); }
h3 { font-size: 1.2rem; letter-spacing: -0.01em; }
p { color: var(--bb-text-muted); }
.bb-lead { font-size: clamp(1.05rem, 1.6vw, 1.25rem); color: var(--bb-text-muted); line-height: 1.65; }
.bb-muted { color: var(--bb-text-dim); }
.bb-gradient-text {
  background: linear-gradient(100deg, var(--bb-indigo-400), var(--bb-violet-400));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---- Buttons --------------------------------------------------------------- */
.bb-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .55rem;
  font-weight: 600;
  font-size: .95rem;
  padding: .72rem 1.3rem;
  border-radius: var(--bb-radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .18s var(--bb-ease), box-shadow .25s var(--bb-ease),
              background-color .2s, border-color .2s, color .2s;
  white-space: nowrap;
}
.bb-btn svg { width: 1.05em; height: 1.05em; }
.bb-btn--primary {
  background: var(--bb-indigo-600);
  color: #fff;
  box-shadow: 0 12px 30px -12px rgb(79 70 229 / .8);
}
.bb-btn--primary:hover {
  background: var(--bb-indigo);
  transform: translateY(-2px);
  box-shadow: 0 18px 38px -12px rgb(99 102 241 / .9);
}
.bb-btn--ghost {
  background: rgb(30 41 59 / .5);
  border-color: var(--bb-border);
  color: var(--bb-text);
}
.bb-btn--ghost:hover {
  border-color: var(--bb-indigo-400);
  background: rgb(51 65 85 / .5);
  transform: translateY(-2px);
}
.bb-btn--lg { padding: .9rem 1.6rem; font-size: 1rem; }

/* ---- Header / nav ---------------------------------------------------------- */
.bb-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--bb-surface-glass);
  backdrop-filter: blur(12px) saturate(140%);
  -webkit-backdrop-filter: blur(12px) saturate(140%);
  border-bottom: 1px solid var(--bb-border);
}
.bb-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: 3.5rem;
}
/* Brand + nav styling mirrors the Gateway app header for a seamless transition. */
.bb-brand { display: inline-flex; align-items: center; gap: .5rem; font-weight: 600; color: #fff; letter-spacing: -.025em; }
.bb-brand img { width: 2rem; height: 2rem; }
.bb-brand span { font-size: 1rem; }
.bb-nav-links { display: flex; align-items: center; gap: 1rem; }
.bb-nav-links a {
  font-size: .875rem;
  color: var(--bb-text-muted);
  font-weight: 400;
  transition: color .2s;
}
.bb-nav-links a:hover { color: #fff; }
.bb-nav-links a[aria-current="page"] {
  color: #fff;
  font-weight: 500;
  border-bottom: 2px solid var(--bb-indigo-400);
  padding-bottom: 2px;
}
.bb-nav-sep { color: rgb(71 85 105); font-weight: 400; user-select: none; }
.bb-nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--bb-border);
  border-radius: var(--bb-radius-sm);
  color: var(--bb-text);
  padding: .45rem;
  cursor: pointer;
}
.bb-nav-toggle svg { width: 1.3rem; height: 1.3rem; }

@media (max-width: 820px) {
  .bb-nav-toggle { display: inline-flex; }
  .bb-nav-links {
    position: absolute;
    top: 3.5rem; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: .25rem;
    padding: 1rem 1.25rem 1.4rem;
    background: var(--bb-surface);
    border-bottom: 1px solid var(--bb-border);
    box-shadow: var(--bb-shadow);
    transform: translateY(-130%);
    opacity: 0;
    pointer-events: none;
    transition: transform .3s var(--bb-ease), opacity .25s;
  }
  .bb-nav-links.is-open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .bb-nav-links a { padding: .7rem .25rem; border-bottom: 1px solid var(--bb-border-soft); }
  .bb-nav-links a[aria-current="page"] { border-bottom-color: var(--bb-indigo-400); padding-bottom: .7rem; }
  .bb-nav-sep { display: none; }
}

/* ---- Background decoration -------------------------------------------------- */
.bb-glow {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}
.bb-glow::before, .bb-glow::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: .5;
}
.bb-glow::before {
  width: 38rem; height: 38rem;
  top: -14rem; left: 50%;
  transform: translateX(-50%);
  background: radial-gradient(circle, rgb(99 102 241 / .55), transparent 65%);
}
.bb-glow::after {
  width: 30rem; height: 30rem;
  top: 4rem; right: -10rem;
  background: radial-gradient(circle, rgb(139 92 246 / .42), transparent 65%);
}
.bb-grid-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgb(148 163 184 / .06) 1px, transparent 1px),
    linear-gradient(90deg, rgb(148 163 184 / .06) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 35%, transparent 75%);
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 35%, transparent 75%);
}

/* ---- Hero ------------------------------------------------------------------ */
.bb-hero { position: relative; padding-block: clamp(4rem, 9vw, 8rem) clamp(3rem, 6vw, 5rem); }
.bb-hero__inner { position: relative; z-index: 1; max-width: 60rem; }
.bb-hero h1 {
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  font-weight: 800;
  margin-bottom: 1.4rem;
}
.bb-hero .bb-lead { max-width: 46rem; margin-bottom: 2rem; }
.bb-hero__cta { display: flex; flex-wrap: wrap; gap: .9rem; align-items: center; }
.bb-hero__note { margin-top: 1.6rem; font-size: .85rem; color: var(--bb-text-faint); }

.bb-badge {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  padding: .4rem .85rem;
  border-radius: 999px;
  border: 1px solid var(--bb-border);
  background: rgb(30 41 59 / .55);
  font-size: .8rem;
  font-weight: 500;
  color: var(--bb-text-muted);
  margin-bottom: 1.6rem;
}
.bb-badge .bb-dot {
  width: .5rem; height: .5rem; border-radius: 50%;
  background: var(--bb-emerald);
  box-shadow: 0 0 0 0 rgb(52 211 153 / .7);
  animation: bb-pulse-dot 2.4s infinite;
}
@keyframes bb-pulse-dot {
  0% { box-shadow: 0 0 0 0 rgb(52 211 153 / .55); }
  70% { box-shadow: 0 0 0 .5rem rgb(52 211 153 / 0); }
  100% { box-shadow: 0 0 0 0 rgb(52 211 153 / 0); }
}

/* ---- Stat strip ------------------------------------------------------------ */
.bb-stats {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--bb-border);
  border: 1px solid var(--bb-border);
  border-radius: var(--bb-radius);
  overflow: hidden;
  margin-top: 3.5rem;
}
.bb-stat { background: var(--bb-bg); padding: 1.5rem 1.4rem; }
.bb-stat__num { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 800; color: #fff; letter-spacing: -.03em; }
.bb-stat__num span { background: var(--bb-accent-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.bb-stat__label { font-size: .82rem; color: var(--bb-text-dim); margin-top: .25rem; }
@media (max-width: 720px) { .bb-stats { grid-template-columns: repeat(2, 1fr); } }

/* ---- Cards / grids --------------------------------------------------------- */
.bb-grid { display: grid; gap: 1.25rem; }
.bb-grid--3 { grid-template-columns: repeat(3, 1fr); }
.bb-grid--2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 900px) { .bb-grid--3 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) { .bb-grid--3, .bb-grid--2 { grid-template-columns: 1fr; } }

.bb-card {
  position: relative;
  background: var(--bb-surface-soft);
  border: 1px solid var(--bb-border);
  border-radius: var(--bb-radius);
  padding: 1.6rem;
  transition: transform .25s var(--bb-ease), border-color .25s, box-shadow .25s;
}
.bb-card:hover {
  transform: translateY(-4px);
  border-color: rgb(99 102 241 / .5);
  box-shadow: var(--bb-shadow-glow);
}
.bb-card h3 { margin-bottom: .55rem; }
.bb-card p { font-size: .95rem; }
.bb-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.9rem; height: 2.9rem;
  border-radius: .7rem;
  background: rgb(99 102 241 / .12);
  border: 1px solid rgb(99 102 241 / .3);
  color: var(--bb-indigo-400);
  margin-bottom: 1.1rem;
}
.bb-icon svg { width: 1.4rem; height: 1.4rem; }

/* ---- How it works (numbered steps) ----------------------------------------- */
.bb-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; counter-reset: step; }
@media (max-width: 900px) { .bb-steps { grid-template-columns: 1fr 1fr; } }
@media (max-width: 540px) { .bb-steps { grid-template-columns: 1fr; } }
.bb-step {
  position: relative;
  background: var(--bb-surface-soft);
  border: 1px solid var(--bb-border);
  border-radius: var(--bb-radius);
  padding: 1.6rem 1.4rem 1.4rem;
}
.bb-step__num {
  counter-increment: step;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.2rem; height: 2.2rem;
  border-radius: .6rem;
  background: var(--bb-accent-grad-br);
  color: #fff;
  font-weight: 700;
  font-size: .95rem;
  margin-bottom: 1rem;
}
.bb-step__num::before { content: counter(step, decimal-leading-zero); }
.bb-step h3 { font-size: 1.05rem; margin-bottom: .45rem; }
.bb-step p { font-size: .9rem; }
.bb-step__connector { display: none; }

/* ---- Trap / signal chips --------------------------------------------------- */
.bb-chips { display: flex; flex-wrap: wrap; gap: .55rem; margin-top: 1.5rem; }
.bb-chip {
  font-size: .82rem;
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  color: var(--bb-text-muted);
  background: rgb(2 6 23 / .6);
  border: 1px solid var(--bb-border);
  border-radius: 999px;
  padding: .38rem .8rem;
  transition: border-color .2s, color .2s;
}
.bb-chip:hover { border-color: var(--bb-indigo-400); color: #fff; }
.bb-chip--accent { color: var(--bb-violet-400); border-color: rgb(139 92 246 / .4); }

/* ---- Scoring section ------------------------------------------------------- */
.bb-scoring { display: grid; grid-template-columns: 1.1fr .9fr; gap: 2.5rem; align-items: center; }
@media (max-width: 900px) { .bb-scoring { grid-template-columns: 1fr; gap: 2rem; } }

.bb-formula {
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  background: var(--bb-bg-2);
  border: 1px solid var(--bb-border);
  border-radius: var(--bb-radius);
  padding: 1.1rem 1.25rem;
  font-size: .9rem;
  color: var(--bb-text-muted);
  overflow-x: auto;
  margin: 1.4rem 0;
}
.bb-formula .bb-tok-key { color: var(--bb-indigo-400); }
.bb-formula .bb-tok-num { color: var(--bb-violet-400); }
.bb-formula .bb-tok-com { color: var(--bb-text-faint); }

/* Decay chart card */
.bb-viz {
  background: var(--bb-surface-soft);
  border: 1px solid var(--bb-border);
  border-radius: var(--bb-radius-lg);
  padding: 1.5rem;
  box-shadow: var(--bb-shadow);
}
.bb-viz h3 { font-size: 1rem; margin-bottom: .25rem; }
.bb-viz__sub { font-size: .82rem; color: var(--bb-text-dim); margin-bottom: 1rem; }
.bb-decay-svg { width: 100%; height: auto; }
.bb-decay-svg text { font-size: 10px; fill: var(--bb-text-dim); font-family: 'Inter', sans-serif; }
.bb-decay-grid { stroke: rgb(148 163 184 / .14); stroke-width: 1; }

/* Risk buckets */
.bb-risk-list { display: grid; gap: .7rem; margin-top: 1.5rem; }
.bb-risk {
  display: grid;
  grid-template-columns: 4.5rem 1fr auto;
  align-items: center;
  gap: .9rem;
  font-size: .9rem;
}
.bb-risk__label { font-weight: 600; color: #fff; }
.bb-risk__bar { height: .55rem; border-radius: 999px; background: rgb(2 6 23 / .6); overflow: hidden; }
.bb-risk__fill { height: 100%; border-radius: 999px; }
.bb-risk__range { font-size: .8rem; color: var(--bb-text-dim); font-variant-numeric: tabular-nums; white-space: nowrap; }
.bb-risk--low    .bb-risk__fill { width: 22%;  background: var(--bb-emerald); }
.bb-risk--med    .bb-risk__fill { width: 45%;  background: var(--bb-amber); }
.bb-risk--high   .bb-risk__fill { width: 70%;  background: var(--bb-orange); }
.bb-risk--crit   .bb-risk__fill { width: 92%;  background: var(--bb-red); }
.bb-risk--low    .bb-risk__label { color: var(--bb-emerald); }
.bb-risk--med    .bb-risk__label { color: var(--bb-amber); }
.bb-risk--high   .bb-risk__label { color: var(--bb-orange); }
.bb-risk--crit   .bb-risk__label { color: var(--bb-red); }

/* ---- Feature list with check ----------------------------------------------- */
.bb-check-list { display: grid; gap: .9rem; margin-top: 1.4rem; }
.bb-check-list li { display: flex; gap: .7rem; align-items: flex-start; color: var(--bb-text-muted); font-size: .96rem; }
.bb-check-list svg { width: 1.25rem; height: 1.25rem; color: var(--bb-emerald); flex-shrink: 0; margin-top: .15rem; }

/* ---- FAQ ------------------------------------------------------------------- */
.bb-faq { max-width: 52rem; margin-inline: auto; display: grid; gap: .75rem; }
.bb-faq details {
  background: var(--bb-surface-soft);
  border: 1px solid var(--bb-border);
  border-radius: var(--bb-radius);
  overflow: hidden;
  transition: border-color .2s;
}
.bb-faq details[open] { border-color: rgb(99 102 241 / .45); }
.bb-faq summary {
  list-style: none;
  cursor: pointer;
  padding: 1.1rem 1.3rem;
  font-weight: 600;
  color: #fff;
  font-size: 1.02rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.bb-faq summary::-webkit-details-marker { display: none; }
.bb-faq summary .bb-faq-icon {
  flex-shrink: 0;
  width: 1.3rem; height: 1.3rem;
  color: var(--bb-indigo-400);
  transition: transform .25s var(--bb-ease);
}
.bb-faq details[open] summary .bb-faq-icon { transform: rotate(45deg); }
.bb-faq__body { padding: 0 1.3rem 1.2rem; }
.bb-faq__body p { font-size: .95rem; color: var(--bb-text-muted); }
.bb-faq__body p + p { margin-top: .7rem; }

/* ---- CTA banner ------------------------------------------------------------ */
.bb-cta-banner {
  position: relative;
  overflow: hidden;
  border-radius: var(--bb-radius-lg);
  border: 1px solid rgb(99 102 241 / .35);
  background: linear-gradient(135deg, rgb(30 41 59 / .9), rgb(2 6 23 / .9));
  padding: clamp(2.5rem, 5vw, 4rem);
  text-align: center;
}
.bb-cta-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 80% at 50% 0%, rgb(99 102 241 / .25), transparent 70%);
  pointer-events: none;
}
.bb-cta-banner > * { position: relative; }
.bb-cta-banner h2 { margin-bottom: 1rem; }
.bb-cta-banner p { max-width: 38rem; margin-inline: auto; margin-bottom: 2rem; }
.bb-cta-banner .bb-hero__cta { justify-content: center; }

/* ---- Contact --------------------------------------------------------------- */
.bb-contact { display: grid; grid-template-columns: 1.05fr .95fr; gap: 2.5rem; align-items: start; }
@media (max-width: 860px) { .bb-contact { grid-template-columns: 1fr; } }
.bb-contact-card {
  background: var(--bb-surface-soft);
  border: 1px solid var(--bb-border);
  border-radius: var(--bb-radius-lg);
  padding: 2rem;
}
.bb-contact-row { display: flex; gap: 1rem; align-items: flex-start; padding-block: 1.1rem; border-bottom: 1px solid var(--bb-border-soft); }
.bb-contact-row:last-child { border-bottom: none; padding-bottom: 0; }
.bb-contact-row:first-child { padding-top: 0; }
.bb-contact-row .bb-icon { margin-bottom: 0; flex-shrink: 0; }
.bb-contact-row__label { font-size: .78rem; text-transform: uppercase; letter-spacing: .1em; color: var(--bb-text-faint); font-weight: 600; }
.bb-contact-row__value { font-size: 1.05rem; color: #fff; font-weight: 600; margin-top: .2rem; }
.bb-contact-row__value a { color: var(--bb-indigo-400); }
.bb-contact-row__value a:hover { color: var(--bb-violet-400); }
.bb-contact-row p { font-size: .9rem; margin-top: .2rem; }

.bb-email-cta {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  background: var(--bb-bg-2);
  border: 1px solid var(--bb-border);
  border-radius: var(--bb-radius);
  padding: 1rem 1.3rem;
  transition: border-color .2s, transform .2s var(--bb-ease);
}
.bb-email-cta:hover { border-color: var(--bb-indigo-400); transform: translateY(-2px); }
.bb-email-cta svg { width: 1.3rem; height: 1.3rem; color: var(--bb-indigo-400); }

/* ---- Footer ---------------------------------------------------------------- */
.bb-footer {
  border-top: 1px solid var(--bb-border);
  background: var(--bb-bg-2);
  padding-block: 3rem 2rem;
  margin-top: 2rem;
}
.bb-footer__grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 2rem;
  margin-bottom: 2.5rem;
}
@media (max-width: 760px) { .bb-footer__grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 460px) { .bb-footer__grid { grid-template-columns: 1fr; } }
.bb-footer__brand p { font-size: .9rem; margin-top: .9rem; max-width: 22rem; }
.bb-footer h3 { font-size: .8rem; text-transform: uppercase; letter-spacing: .1em; color: var(--bb-text-faint); margin-bottom: 1rem; font-weight: 600; }
.bb-footer ul { display: grid; gap: .6rem; }
.bb-footer a { font-size: .9rem; color: var(--bb-text-dim); transition: color .2s; }
.bb-footer a:hover { color: #fff; }
.bb-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
  padding-top: 1.6rem;
  border-top: 1px solid var(--bb-border-soft);
  font-size: .82rem;
  color: var(--bb-text-faint);
}

/* ---- Reveal-on-scroll ------------------------------------------------------ */
/* Gated behind `.js`: with no JS (or if main.js fails to load) content stays visible. */
.js .bb-reveal { opacity: 0; transform: translateY(22px); transition: opacity .6s var(--bb-ease), transform .6s var(--bb-ease); }
.js .bb-reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .js .bb-reveal { opacity: 1; transform: none; transition: none; }
  .bb-card:hover, .bb-btn:hover, .bb-email-cta:hover { transform: none; }
}

/* ---- Misc ------------------------------------------------------------------ */
.bb-skip-link {
  position: absolute;
  left: -999px;
  top: .5rem;
  z-index: 100;
  background: var(--bb-indigo-600);
  color: #fff;
  padding: .6rem 1rem;
  border-radius: var(--bb-radius-sm);
}
.bb-skip-link:focus { left: 1rem; }
.bb-divider { border: none; border-top: 1px solid var(--bb-border); margin: 0; }
.bb-prose p + p { margin-top: 1rem; }
.bb-prose a { color: var(--bb-indigo-400); text-decoration: underline; text-underline-offset: 2px; }
.bb-prose a:hover { color: var(--bb-violet-400); }