@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&family=Space+Grotesk:wght@500;600;700&display=swap');

:root {
  --bf-dark: #0f172a;
  --bf-blue: #2563eb;
  --bf-violet: #7c3aed;
  --bf-pink: #ec4899;
  --bf-gold: #d4af37;
  --bf-green: #10b981;
  --bf-orange: #f97316;
}

/* RESET LANDING */
.bf-landing,
.bf-landing * {
  box-sizing: border-box;
}

.bf-landing {
  position: relative;
  isolation: isolate;
  font-family: 'Manrope', Arial, sans-serif;
  color: var(--bf-dark);
  overflow: hidden;
  background:
    radial-gradient(circle at 10% 10%, rgba(124,58,237,.22), transparent 28%),
    radial-gradient(circle at 90% 15%, rgba(236,72,153,.18), transparent 26%),
    radial-gradient(circle at 50% 90%, rgba(37,99,235,.18), transparent 30%),
    linear-gradient(135deg, #ffffff 0%, #f8fbff 45%, #eef4ff 100%);
}

.bf-landing::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(37,99,235,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124,58,237,.06) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,.75), transparent);
  animation: bfGridMove 18s linear infinite;
}

.bf-landing::after {
  content: "";
  position: fixed;
  width: 420px;
  height: 420px;
  right: -120px;
  top: 120px;
  z-index: 0;
  pointer-events: none;
  background: radial-gradient(circle, rgba(212,175,55,.22), transparent 65%);
  filter: blur(20px);
  animation: bfFloatGlow 8s ease-in-out infinite alternate;
}

@keyframes bfGridMove {
  from { background-position: 0 0; }
  to { background-position: 42px 42px; }
}

@keyframes bfFloatGlow {
  from { transform: translateY(0) scale(1); }
  to { transform: translateY(60px) scale(1.15); }
}

.bf-header,
.bf-hero,
.bf-stats,
.bf-section,
.bf-why,
.bf-ecosystem,
.bf-ai-section,
.bf-creators,
.bf-testimonials,
.bf-faq,
.bf-reunion,
.bf-final {
  position: relative;
  z-index: 1;
}

.bf-container {
  width: min(1180px, calc(100% - 32px));
  margin: auto;
}

/* HEADER */
.bf-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255,255,255,.84);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(15,23,42,.08);
  box-shadow:
    0 8px 32px rgba(15,23,42,.05),
    0 2px 10px rgba(124,58,237,.06);
}

.bf-header.scrolled {
  box-shadow: 0 12px 35px rgba(15,23,42,.10);
}

.bf-nav {
  min-height: 92px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.bf-logo {
  display: flex;
  align-items: center;
  gap: 16px;
  position: relative;
}

.bf-logo::before {
  content: "";
  position: absolute;
  width: 100px;
  height: 100px;
  left: -18px;
  top: 50%;
  transform: translateY(-50%);
  background: radial-gradient(circle, rgba(124,58,237,.18), transparent 70%);
  filter: blur(10px);
  z-index: 0;
}

.bf-logo img {
  position: relative;
  z-index: 1;
  width: 82px;
  height: 82px;
  object-fit: contain;
  filter:
    drop-shadow(0 10px 22px rgba(124,58,237,.25))
    drop-shadow(0 4px 12px rgba(37,99,235,.22));
  transition: transform .35s ease;
}

.bf-logo img:hover {
  transform: scale(1.06) rotate(-2deg);
}

.bf-logo span {
  position: relative;
  z-index: 1;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 34px;
  font-weight: 700;
  letter-spacing: -1px;
  background: linear-gradient(135deg, #2563eb 0%, #7c3aed 45%, #ec4899 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.bf-menu {
  display: flex;
  gap: 28px;
}

.bf-menu a,
.bf-login {
  color: #334155;
  text-decoration: none;
  font-weight: 700;
}

.bf-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* BUTTONS */
.bf-btn-small,
.bf-btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff !important;
  text-decoration: none;
  border-radius: 999px;
  font-weight: 800;
  background: linear-gradient(135deg, #2563eb, #7c3aed, #ec4899);
  background-size: 200% 200%;
  box-shadow: 0 18px 40px rgba(79,70,229,.28);
  animation: bfButtonMove 4s ease infinite;
  transition: .3s ease;
}

.bf-btn-small {
  padding: 11px 20px;
}

.bf-btn-primary {
  padding: 15px 26px;
}

.bf-btn-primary:hover,
.bf-btn-small:hover {
  transform: translateY(-2px) scale(1.02);
}

.bf-btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 15px 26px;
  color: #111827;
  background: #fff;
  border: 1px solid rgba(15,23,42,.12);
  border-radius: 999px;
  text-decoration: none;
  font-weight: 800;
}

@keyframes bfButtonMove {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* HERO */
.bf-hero {
  padding: 95px 0 70px;
}

.bf-hero-grid {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  align-items: center;
  gap: 60px;
}

.bf-badge,
.bf-kicker {
  display: inline-flex;
  padding: 9px 16px;
  border-radius: 999px;
  background: rgba(212,175,55,.14);
  color: #8a6500;
  font-weight: 800;
  margin-bottom: 24px;
}

.bf-hero h1,
.bf-section-title h2,
.bf-ai-section h2,
.bf-reunion h2,
.bf-final h2,
.bf-why h2,
.bf-creators h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
}

.bf-hero h1 {
  font-size: clamp(42px, 6vw, 76px);
  line-height: .98;
  letter-spacing: -2.8px;
  margin: 0 0 24px;
  background: linear-gradient(135deg, #0f172a, #4f46e5, #ec4899);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.bf-hero p,
.bf-ai-section p,
.bf-reunion p,
.bf-final p {
  font-size: 19px;
  line-height: 1.75;
  color: #475569;
}

.bf-hero-buttons {
  display: flex;
  gap: 14px;
  margin: 34px 0 24px;
  flex-wrap: wrap;
}

.bf-trust {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  color: #475569;
  font-weight: 700;
}

.bf-hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.bf-hero-image {
  width: 100%;
  max-width: 620px;
  border-radius: 42px;
  object-fit: cover;
  box-shadow:
    0 40px 90px rgba(15,23,42,.16),
    0 12px 40px rgba(124,58,237,.16);
  animation: bfHeroFloat 6s ease-in-out infinite;
}

@keyframes bfHeroFloat {
  0%,100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.bf-floating-card {
  position: absolute;
  z-index: 10;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(14px);
  border-radius: 18px;
  padding: 14px 18px;
  font-weight: 800;
  box-shadow: 0 12px 35px rgba(15,23,42,.12);
  animation: bfCardFloat 5s ease-in-out infinite;
}

.bf-floating-1 { top: 8%; left: -20px; }
.bf-floating-2 { bottom: 18%; left: -30px; }
.bf-floating-3 { top: 20%; right: -20px; }

@keyframes bfCardFloat {
  0%,100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* STATS */
.bf-stats {
  padding: 35px 0 75px;
}

.bf-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
}

.bf-stat-card {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  min-height: 190px;
  padding: 28px 22px;
  border-radius: 36px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(circle at 20% 10%, rgba(255,255,255,.95), transparent 34%),
    linear-gradient(145deg, rgba(255,255,255,.92), rgba(255,255,255,.68));
  border: 1px solid rgba(255,255,255,.78);
  box-shadow:
    0 28px 70px rgba(15,23,42,.10),
    0 10px 22px rgba(124,58,237,.08),
    inset 0 1px 0 rgba(255,255,255,.85);
  transition: transform .35s ease, box-shadow .35s ease;
}

.bf-stat-card::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  opacity: .95;
}

.bf-stat-card:nth-child(1)::before {
  background: linear-gradient(135deg, rgba(37,99,235,.24), rgba(255,255,255,.05));
}

.bf-stat-card:nth-child(2)::before {
  background: linear-gradient(135deg, rgba(124,58,237,.24), rgba(255,255,255,.05));
}

.bf-stat-card:nth-child(3)::before {
  background: linear-gradient(135deg, rgba(212,175,55,.26), rgba(255,255,255,.05));
}

.bf-stat-card:nth-child(4)::before {
  background: linear-gradient(135deg, rgba(236,72,153,.24), rgba(255,255,255,.05));
}

.bf-stat-card::after {
  content: "";
  position: absolute;
  width: 130px;
  height: 130px;
  right: -42px;
  bottom: -48px;
  z-index: -1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,.95), rgba(255,255,255,0));
  filter: blur(2px);
}

.bf-stat-card:hover {
  transform: translateY(-12px) scale(1.025);
  box-shadow:
    0 38px 85px rgba(15,23,42,.16),
    0 16px 35px rgba(124,58,237,.15);
}

.bf-stat-icon {
  width: 66px;
  height: 66px;
  border-radius: 24px;
  margin-bottom: 18px;
  font-size: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,.76);
  border: 1px solid rgba(255,255,255,.75);
  box-shadow:
    0 18px 34px rgba(15,23,42,.10),
    inset 0 1px 0 rgba(255,255,255,.9);
}

.bf-stat-card strong {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 62px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -3px;
  margin-bottom: 10px;
  background: linear-gradient(135deg, #2563eb, #7c3aed, #ec4899);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.bf-stat-card span {
  font-size: 19px;
  font-weight: 800;
  color: #263445;
  text-align: center;
}

/* COMMON SECTIONS */
.bf-section,
.bf-ai-section,
.bf-reunion,
.bf-final {
  padding: 80px 0;
}

.bf-section-title {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 42px;
}

.bf-section-title span {
  color: #7c3aed;
  font-weight: 900;
}

.bf-section-title h2,
.bf-ai-section h2,
.bf-reunion h2,
.bf-final h2 {
  font-size: clamp(32px, 4vw, 54px);
  line-height: 1.05;
  letter-spacing: -1.6px;
  margin: 12px 0 0;
}

/* FEATURES */
.bf-features-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.bf-card {
  position: relative;
  overflow: hidden;
  border-radius: 28px;
  padding: 28px;
  color: #0f172a;
  font-size: 20px;
  border: 1px solid rgba(79,70,229,.13);
  box-shadow: 0 18px 40px rgba(15,23,42,.08);
  transition: transform .3s ease, box-shadow .3s ease;
}

.bf-card:nth-child(1) { background: linear-gradient(135deg,#eef2ff,#ffffff); }
.bf-card:nth-child(2) { background: linear-gradient(135deg,#fdf2f8,#ffffff); }
.bf-card:nth-child(3) { background: linear-gradient(135deg,#ecfeff,#ffffff); }
.bf-card:nth-child(4) { background: linear-gradient(135deg,#fff7ed,#ffffff); }
.bf-card:nth-child(5) { background: linear-gradient(135deg,#f0fdf4,#ffffff); }
.bf-card:nth-child(6) { background: linear-gradient(135deg,#faf5ff,#ffffff); }

.bf-card::before {
  content: "";
  position: absolute;
  inset: -1px;
  z-index: 0;
  background: linear-gradient(135deg, rgba(37,99,235,.18), rgba(236,72,153,.16), rgba(212,175,55,.16));
  opacity: 0;
  transition: .3s ease;
}

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

.bf-card:hover {
  transform: translateY(-10px);
  box-shadow:
    0 30px 60px rgba(15,23,42,.14),
    0 12px 24px rgba(124,58,237,.12);
}

.bf-card > * {
  position: relative;
  z-index: 1;
}

.bf-card h3 {
  margin: 14px 0 8px;
  font-size: 24px;
  font-weight: 900;
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.bf-card p {
  color: #334155;
  font-size: 17px;
  line-height: 1.65;
  font-weight: 600;
}

/* AI SECTION */
.bf-ai-section {
  background: linear-gradient(135deg,#0f172a,#312e81);
  color: #fff;
}

.bf-ai-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 42px;
  align-items: center;
}

.bf-ai-section p {
  color: #cbd5e1;
}

.bf-ai-box {
  display: grid;
  gap: 16px;
}

.bf-ai-box div {
  border-radius: 24px;
  padding: 24px;
  color: #111827;
  font-size: 18px;
  font-weight: 900;
  background: #fff;
  border: 1px solid rgba(15,23,42,.08);
  box-shadow: 0 18px 40px rgba(15,23,42,.08);
}

/* WHY */
.bf-why,
.bf-ecosystem,
.bf-creators,
.bf-testimonials,
.bf-faq {
  padding: 90px 0;
}

.bf-why {
  background: linear-gradient(135deg, #ffffff, #f8fbff);
}

.bf-why-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 46px;
  align-items: center;
}

.bf-why h2,
.bf-creators h2 {
  font-size: clamp(32px, 4vw, 54px);
  line-height: 1.05;
  letter-spacing: -1.6px;
  margin: 12px 0 20px;
}

.bf-why p,
.bf-creators p {
  font-size: 18px;
  line-height: 1.75;
  color: #475569;
}

.bf-why-list {
  display: grid;
  gap: 16px;
}

.bf-why-list div {
  background: #fff;
  border: 1px solid rgba(79,70,229,.13);
  border-radius: 22px;
  padding: 20px 22px;
  font-size: 18px;
  font-weight: 900;
  color: #0f172a;
  box-shadow: 0 18px 40px rgba(15,23,42,.07);
}

.bf-why-list div:nth-child(1) { border-left: 6px solid var(--bf-blue); }
.bf-why-list div:nth-child(2) { border-left: 6px solid var(--bf-violet); }
.bf-why-list div:nth-child(3) { border-left: 6px solid var(--bf-gold); }
.bf-why-list div:nth-child(4) { border-left: 6px solid var(--bf-pink); }

/* ECOSYSTEM */
.bf-ecosystem {
  background: #fff;
}

.bf-eco-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.bf-eco-grid div {
  min-height: 120px;
  border-radius: 28px;
  border: 1px solid rgba(79,70,229,.13);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #0f172a;
  font-size: 18px;
  font-weight: 900;
  box-shadow: 0 20px 45px rgba(15,23,42,.08);
  transition: .25s ease;
}

.bf-eco-grid div:hover {
  transform: translateY(-6px);
}

.bf-eco-grid div:nth-child(1) { background: linear-gradient(135deg,#dbeafe,#ffffff); }
.bf-eco-grid div:nth-child(2) { background: linear-gradient(135deg,#ede9fe,#ffffff); }
.bf-eco-grid div:nth-child(3) { background: linear-gradient(135deg,#fce7f3,#ffffff); }
.bf-eco-grid div:nth-child(4) { background: linear-gradient(135deg,#ffedd5,#ffffff); }
.bf-eco-grid div:nth-child(5) { background: linear-gradient(135deg,#dcfce7,#ffffff); }
.bf-eco-grid div:nth-child(6) { background: linear-gradient(135deg,#e0f2fe,#ffffff); }
.bf-eco-grid div:nth-child(7) { background: linear-gradient(135deg,#fef9c3,#ffffff); }
.bf-eco-grid div:nth-child(8) { background: linear-gradient(135deg,#fae8ff,#ffffff); }

/* CREATORS */
.bf-creators {
  background:
    radial-gradient(circle at top left, rgba(212,175,55,.22), transparent 34%),
    linear-gradient(135deg, #111827, #312e81);
  color: #fff;
}

.bf-creators-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 42px;
  align-items: center;
}

.bf-creators p {
  color: #dbeafe;
  margin-bottom: 28px;
}

.bf-creators-image-box {
  position: relative;
}

.bf-creators-image-box::before {
  content: "";
  position: absolute;
  inset: -20px;
  background: radial-gradient(circle, rgba(124,58,237,.18), transparent 60%);
  z-index: 0;
  filter: blur(18px);
}

.bf-business-image {
  position: relative;
  z-index: 1;
  width: 100%;
  border-radius: 34px;
  object-fit: cover;
  box-shadow:
    0 30px 80px rgba(15,23,42,.18),
    0 10px 30px rgba(37,99,235,.12);
  transition: transform .35s ease;
}

.bf-business-image:hover {
  transform: scale(1.02);
}

/* TESTIMONIALS */
.bf-testimonials {
  background: linear-gradient(135deg, #f8fafc, #ffffff);
}

.bf-testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.bf-testimonial {
  border: 1px solid rgba(79,70,229,.13);
  border-radius: 28px;
  padding: 28px;
  box-shadow: 0 20px 45px rgba(15,23,42,.08);
}

.bf-testimonial:nth-child(1) { background: linear-gradient(135deg,#eef2ff,#fff); }
.bf-testimonial:nth-child(2) { background: linear-gradient(135deg,#fff7ed,#fff); }
.bf-testimonial:nth-child(3) { background: linear-gradient(135deg,#fdf2f8,#fff); }

.bf-testimonial p {
  color: #1e293b;
  line-height: 1.7;
  font-size: 18px;
  font-weight: 600;
}

.bf-testimonial strong {
  display: block;
  margin-top: 18px;
  color: #4f46e5;
  font-size: 16px;
  font-weight: 900;
}

/* FAQ */
.bf-faq {
  background: #fff;
}

.bf-faq-list {
  max-width: 860px;
  margin: auto;
  display: grid;
  gap: 14px;
}

.bf-faq details {
  background: linear-gradient(135deg, rgba(255,255,255,.96), rgba(248,250,252,.96));
  border: 1px solid rgba(124,58,237,.12);
  border-radius: 24px;
  padding: 24px 26px;
  box-shadow:
    0 14px 35px rgba(15,23,42,.06),
    0 4px 12px rgba(124,58,237,.05);
  transition: all .25s ease;
}

.bf-faq details:hover {
  transform: translateY(-3px);
  border-color: rgba(124,58,237,.28);
}

.bf-faq details[open] {
  background: linear-gradient(135deg, #ffffff, #f5f3ff);
}

.bf-faq summary {
  position: relative;
  cursor: pointer;
  list-style: none;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 22px;
  font-weight: 700;
  line-height: 1.4;
  color: #0f172a;
  padding-right: 28px;
}

.bf-faq summary::-webkit-details-marker {
  display: none;
}

.bf-faq summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 28px;
  font-weight: 400;
  color: #7c3aed;
  transition: .25s ease;
}

.bf-faq details[open] summary::after {
  transform: translateY(-50%) rotate(45deg);
}

.bf-faq details p {
  font-size: 17px;
  line-height: 1.8;
  color: #475569;
  margin: 18px 0 0;
}

/* REUNION + FINAL */
.bf-reunion {
  text-align: center;
  background: #fff;
}

.bf-reunion .bf-container {
  max-width: 850px;
}

.bf-final {
  text-align: center;
  background:
    radial-gradient(circle at 15% 10%, rgba(124,58,237,.26), transparent 34%),
    radial-gradient(circle at 85% 40%, rgba(236,72,153,.22), transparent 34%),
    linear-gradient(135deg,#f8fafc,#eef2ff);
}

/* ANIMATIONS JS */
.bf-animate {
  opacity: 0;
  transform: translateY(26px);
  transition: all .65s ease;
}

.bf-visible {
  opacity: 1;
  transform: translateY(0);
}

/* RESPONSIVE */
@media (max-width: 1000px) {
  .bf-menu {
    display: none;
  }

  .bf-hero-grid,
  .bf-ai-grid,
  .bf-why-grid,
  .bf-creators-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .bf-hero-buttons,
  .bf-trust {
    justify-content: center;
  }

  .bf-floating-card {
    display: none;
  }

  .bf-stats-grid,
  .bf-features-grid,
  .bf-eco-grid,
  .bf-testimonials-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .bf-container {
    width: min(100% - 24px, 1180px);
  }

  .bf-nav {
    min-height: 76px;
    padding: 12px 0;
  }

  .bf-logo img {
    width: 58px;
    height: 58px;
  }

  .bf-logo span {
    font-size: 26px;
  }

  .bf-actions {
    gap: 8px;
  }

  .bf-login {
    display: none;
  }

  .bf-btn-small {
    padding: 10px 15px;
    font-size: 13px;
  }

  .bf-hero {
    padding: 55px 0 45px;
  }

  .bf-hero h1 {
    letter-spacing: -1.6px;
  }

  .bf-hero-buttons a {
    width: 100%;
  }

  .bf-stats-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  .bf-stat-card {
    min-height: 150px;
    padding: 22px 12px;
    border-radius: 28px;
  }

  .bf-stat-icon {
    width: 52px;
    height: 52px;
    font-size: 24px;
    margin-bottom: 12px;
    border-radius: 18px;
  }

  .bf-stat-card strong {
    font-size: 40px;
    letter-spacing: -1.8px;
  }

  .bf-stat-card span {
    font-size: 14px;
    line-height: 1.25;
  }

  .bf-features-grid,
  .bf-eco-grid,
  .bf-testimonials-grid {
    grid-template-columns: 1fr;
  }

  .bf-why,
  .bf-ecosystem,
  .bf-creators,
  .bf-testimonials,
  .bf-faq,
  .bf-section,
  .bf-ai-section,
  .bf-reunion,
  .bf-final {
    padding: 60px 0;
  }

  .bf-faq summary {
    font-size: 19px;
  }

  .bf-faq details {
    padding: 20px;
  }
}