/*
 * Biller Bolt public marketing site (landing + contact).
 * Bold dark / modern-fintech theme, scoped entirely to `.bb-landing` so the
 * light app UI after login is unaffected. Loaded by landing.html and contact.html.
 */
.bb-landing {
  --bb-bg: #0b1220;
  --bb-bg-2: #0f172a;
  --bb-surface: rgba(255, 255, 255, 0.04);
  --bb-surface-2: rgba(255, 255, 255, 0.06);
  --bb-border: rgba(255, 255, 255, 0.09);
  --bb-text: #e6eaf2;
  --bb-muted: #93a1b5;
  --bb-indigo: #6366f1;
  --bb-violet: #7c3aed;
  --bb-blue: #4a90e2;
  --bb-gradient: linear-gradient(135deg, #6366f1 0%, #7c3aed 100%);
  background-color: var(--bb-bg);
  color: var(--bb-text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  scroll-behavior: smooth;
  overflow-x: hidden;
}
.bb-landing a { text-decoration: none; }
.bb-landing section { scroll-margin-top: 90px; }

/* Brand logo (transparent PNG — sits fully inside the header) */
.bb-brand img { display: block; height: 144px; width: auto; }
.bb-footer .bb-brand img { height: 68px; }

/* Ambient background glows */
.bb-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.28;
  z-index: 0;
  pointer-events: none;
}
.bb-glow--1 { top: -140px; left: -120px; width: 460px; height: 460px; background: #6366f1; }
.bb-glow--2 { top: 240px; right: -160px; width: 420px; height: 420px; background: #7c3aed; }
.bb-landing .bb-wrap { position: relative; z-index: 1; }

/* Nav */
.bb-nav {
  position: sticky; top: 0; z-index: 20;
  background: rgba(11, 18, 32, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--bb-border);
}
.bb-brand { display: inline-flex; align-items: center; gap: .5rem; font-weight: 700; font-size: 1.25rem; color: var(--bb-text); letter-spacing: -.01em; }
.bb-brand i { background: var(--bb-gradient); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.bb-nav .nav-link { color: var(--bb-muted); font-weight: 500; padding: .4rem .85rem; }
.bb-nav .nav-link:hover { color: var(--bb-text); }
.bb-navbar-toggler { border-color: var(--bb-border); }

/* Buttons */
.bb-btn { display: inline-flex; align-items: center; gap: .5rem; font-weight: 600; border-radius: 10px; padding: .62rem 1.15rem; transition: transform .15s ease, box-shadow .15s ease, background .15s ease; border: 1px solid transparent; }
.bb-btn-primary { background: var(--bb-gradient); color: #fff; box-shadow: 0 8px 24px rgba(99, 102, 241, .35); }
.bb-btn-primary:hover { color: #fff; transform: translateY(-1px); box-shadow: 0 12px 30px rgba(124, 58, 237, .45); }
.bb-btn-ghost { background: transparent; color: var(--bb-text); border-color: var(--bb-border); }
.bb-btn-ghost:hover { color: #fff; background: var(--bb-surface-2); border-color: rgba(255,255,255,.2); }
.bb-btn-lg { padding: .8rem 1.5rem; font-size: 1.02rem; }

/* Hero */
.bb-hero { padding: 5.5rem 0 4rem; }
.bb-eyebrow { display: inline-flex; align-items: center; gap: .5rem; font-size: .82rem; font-weight: 600; color: #c7cbff; background: var(--bb-surface); border: 1px solid var(--bb-border); padding: .35rem .8rem; border-radius: 999px; }
.bb-eyebrow i { color: var(--bb-indigo); }
.bb-h1 { font-size: clamp(2.4rem, 5vw, 3.6rem); line-height: 1.06; font-weight: 800; letter-spacing: -.02em; margin: 1.2rem 0 1rem; }
.bb-gradient-text { background: linear-gradient(135deg, #a5b4fc 0%, #c4b5fd 55%, #f0abfc 100%); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.bb-lead { font-size: 1.15rem; color: var(--bb-muted); max-width: 34rem; line-height: 1.6; }
.bb-trustline { color: var(--bb-muted); font-size: .9rem; }
.bb-trustline i { color: #34d399; }
.bb-trustline a { color: #a5b4fc; font-weight: 600; }
.bb-trustline a:hover { color: #c4b5fd; }

/* Glass cards */
.bb-card { background: var(--bb-surface); border: 1px solid var(--bb-border); border-radius: 16px; backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }

/* Hero product mock */
.bb-mock { padding: 1.25rem; box-shadow: 0 30px 70px rgba(2, 6, 23, .6); }
.bb-mock-head { display: flex; align-items: center; gap: .45rem; margin-bottom: 1rem; }
.bb-dot { width: 11px; height: 11px; border-radius: 50%; display: inline-block; }
.bb-row { display: flex; align-items: center; justify-content: space-between; gap: .75rem; padding: .8rem .9rem; border-radius: 12px; background: var(--bb-surface-2); border: 1px solid var(--bb-border); margin-bottom: .7rem; }
.bb-row small { color: var(--bb-muted); }
.bb-pill { font-size: .72rem; font-weight: 700; padding: .2rem .55rem; border-radius: 999px; }
.bb-pill--ok { color: #34d399; background: rgba(52, 211, 153, .12); border: 1px solid rgba(52, 211, 153, .25); }
.bb-pill--sync { color: #a5b4fc; background: rgba(99, 102, 241, .12); border: 1px solid rgba(99, 102, 241, .25); }
.bb-mock-icon { width: 34px; height: 34px; border-radius: 9px; display: inline-flex; align-items: center; justify-content: center; background: var(--bb-gradient); color: #fff; flex: 0 0 auto; }

/* Integrations */
.bb-section { padding: 3.5rem 0; }
.bb-kicker { text-transform: uppercase; letter-spacing: .12em; font-size: .78rem; font-weight: 700; color: var(--bb-muted); }
.bb-integrations { display: flex; flex-wrap: wrap; gap: .75rem; }
.bb-chip { display: inline-flex; align-items: center; gap: .5rem; padding: .6rem 1rem; border-radius: 12px; background: var(--bb-surface); border: 1px solid var(--bb-border); color: var(--bb-text); font-weight: 600; }
.bb-chip i { color: var(--bb-indigo); }

/* Capability band */
.bb-cap { text-align: center; padding: 1.6rem 1rem; height: 100%; }
.bb-cap-ico { font-size: 1.6rem; background: var(--bb-gradient); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.bb-cap-title { font-weight: 700; margin-top: .5rem; }
.bb-cap-sub { color: var(--bb-muted); font-size: .9rem; }

/* Section headings */
.bb-h2 { font-size: clamp(1.8rem, 3.5vw, 2.5rem); font-weight: 800; letter-spacing: -.02em; }
.bb-sub { color: var(--bb-muted); font-size: 1.05rem; max-width: 40rem; }

/* Feature cards */
.bb-feature { padding: 1.5rem; height: 100%; transition: transform .18s ease, border-color .18s ease; }
.bb-feature:hover { transform: translateY(-3px); border-color: rgba(124, 58, 237, .5); }
.bb-feature-ico { width: 46px; height: 46px; border-radius: 12px; display: inline-flex; align-items: center; justify-content: center; font-size: 1.35rem; color: #fff; background: var(--bb-gradient); margin-bottom: 1rem; }
.bb-feature h3 { font-size: 1.15rem; font-weight: 700; }
.bb-feature p { color: var(--bb-muted); font-size: .95rem; margin: 0; }

/* How it works */
.bb-step { padding: 1.5rem; height: 100%; }
.bb-step-num { display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px; border-radius: 50%; font-weight: 800; color: #fff; background: var(--bb-gradient); margin-bottom: .9rem; }
.bb-step h3 { font-size: 1.1rem; font-weight: 700; }
.bb-step p { color: var(--bb-muted); font-size: .95rem; margin: 0; }

/* Security */
.bb-sec-item { display: flex; gap: .9rem; align-items: flex-start; }
.bb-sec-item i { font-size: 1.35rem; color: #34d399; flex: 0 0 auto; margin-top: .1rem; }
.bb-sec-item h4 { font-size: 1.05rem; font-weight: 700; margin: 0 0 .2rem; }
.bb-sec-item p { color: var(--bb-muted); font-size: .92rem; margin: 0; }

/* Contact */
.bb-contact { border-radius: 24px; padding: 3rem; background: linear-gradient(135deg, rgba(99,102,241,.18), rgba(124,58,237,.18)); border: 1px solid rgba(124, 58, 237, .35); }
.bb-contact h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 800; letter-spacing: -.02em; }
.bb-contact .bb-sub { color: var(--bb-muted); }
.bb-form label { color: var(--bb-text); font-weight: 600; font-size: .92rem; margin-bottom: .3rem; }
.bb-form .form-control, .bb-form .form-select { background: rgba(255,255,255,.04); border: 1px solid var(--bb-border); color: var(--bb-text); border-radius: 10px; padding: .65rem .85rem; }
.bb-form .form-control:focus { background: rgba(255,255,255,.06); border-color: var(--bb-violet); box-shadow: 0 0 0 .2rem rgba(124,58,237,.25); color: var(--bb-text); }
.bb-form .form-control::placeholder { color: #6b7a90; }
.bb-form .form-check-label { color: var(--bb-muted); font-weight: 500; font-size: .9rem; }
.bb-form a { color: #a5b4fc; font-weight: 600; }
/* Honeypot: hidden from humans, still present for bots. */
.bb-hp { position: absolute; left: -9999px; top: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* CTA band */
.bb-cta { border-radius: 24px; padding: 3rem; text-align: center; background: linear-gradient(135deg, rgba(99,102,241,.18), rgba(124,58,237,.18)); border: 1px solid rgba(124, 58, 237, .35); }
.bb-cta h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 800; letter-spacing: -.02em; }
.bb-cta p { color: var(--bb-muted); font-size: 1.08rem; }

/* Footer */
.bb-footer { border-top: 1px solid var(--bb-border); padding: 2.5rem 0 3rem; color: var(--bb-muted); }
.bb-footer a { color: var(--bb-muted); }
.bb-footer a:hover { color: var(--bb-text); }

@media (max-width: 991.98px) {
  .bb-hero { padding: 3rem 0 2rem; }
  .bb-mock { margin-top: 2rem; }
  .bb-nav .navbar-collapse { background: rgba(11, 18, 32, .96); border: 1px solid var(--bb-border); border-radius: 12px; padding: 1rem; margin-top: .75rem; }
}