.arb-homepage{
  --arb-bg:#f6f8fb;
  --arb-card:#ffffff;
  --arb-text:#121826;
  --arb-muted:#5f6b7a;
  --arb-line:#e5eaf1;
  --arb-primary:#1769ff;
  --arb-primary-dark:#0f52d8;
  --arb-accent:#12b76a;
  --arb-shadow:0 14px 40px rgba(16,24,40,.08);
  --arb-radius:22px;
  color:var(--arb-text);
  background:var(--arb-bg);
  font-family:Arial,Helvetica,sans-serif;
}

.arb-homepage *{
  box-sizing:border-box;
}

.arb-container{
  width:min(1200px, calc(100% - 32px));
  margin:0 auto;
}

.arb-header{
  position:sticky;
  top:0;
  z-index:30;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(229,234,241,.8);
}

.arb-header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  min-height:72px;
}

.arb-logo{
  color:var(--arb-text);
  text-decoration:none;
  font-size:22px;
  font-weight:800;
  letter-spacing:-.02em;
}

.arb-nav{
  display:flex;
  align-items:center;
  gap:18px;
  flex-wrap:wrap;
}

.arb-nav a{
  color:var(--arb-text);
  text-decoration:none;
  font-size:14px;
  font-weight:600;
}

.arb-nav a:hover{
  color:var(--arb-primary);
}

.arb-hero{
  padding:56px 0 32px;
}

.arb-hero-grid{
  display:grid;
  grid-template-columns:1.04fr .96fr;
  gap:34px;
  align-items:center;
}

.arb-kicker{
  display:inline-block;
  margin-bottom:14px;
  padding:8px 12px;
  border-radius:999px;
  background:#eaf2ff;
  color:var(--arb-primary);
  font-size:12px;
  font-weight:800;
  letter-spacing:.08em;
  text-transform:uppercase;
}

.arb-hero h1{
  margin:0 0 16px;
  font-size:clamp(34px,5vw,58px);
  line-height:1.06;
  letter-spacing:-.03em;
}

.arb-lead{
  margin:0 0 18px;
  color:var(--arb-muted);
  font-size:17px;
  line-height:1.85;
}

.arb-hero-points{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:22px;
}

.arb-hero-points span{
  display:inline-flex;
  align-items:center;
  padding:10px 14px;
  background:#fff;
  border:1px solid var(--arb-line);
  border-radius:999px;
  font-size:14px;
  font-weight:700;
}

.arb-hero-actions{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  margin-bottom:14px;
}

.arb-btn{
  display:inline-flex;
  justify-content:center;
  align-items:center;
  min-height:48px;
  padding:0 20px;
  border-radius:999px;
  text-decoration:none;
  font-weight:800;
  transition:.25s ease;
}

.arb-btn-primary{
  background:var(--arb-primary);
  color:#fff;
}

.arb-btn-primary:hover{
  background:var(--arb-primary-dark);
  transform:translateY(-1px);
}

.arb-btn-secondary{
  background:#fff;
  color:var(--arb-text);
  border:1px solid var(--arb-line);
}

.arb-btn-secondary:hover{
  border-color:#c9d8f5;
  background:#f9fbff;
}

.arb-note{
  margin:0;
  color:var(--arb-muted);
  font-size:13px;
  line-height:1.7;
}

.arb-hero-media img{
  display:block;
  width:100%;
  height:auto;
  border-radius:26px;
  box-shadow:var(--arb-shadow);
}

.arb-strip{
  padding:8px 0 22px;
}

.arb-strip-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:18px;
}

.arb-strip-card{
  background:var(--arb-card);
  border:1px solid var(--arb-line);
  border-radius:18px;
  padding:20px;
  box-shadow:var(--arb-shadow);
}

.arb-strip-card strong{
  display:block;
  margin-bottom:8px;
  font-size:16px;
}

.arb-strip-card p{
  margin:0;
  color:var(--arb-muted);
  line-height:1.8;
  font-size:14px;
}

.arb-section{
  padding:72px 0;
}

.arb-section-alt{
  background:#eef3f9;
}

.arb-section-head{
  max-width:780px;
  margin:0 auto 34px;
  text-align:center;
}

.arb-section-head h2{
  margin:0 0 14px;
  font-size:clamp(28px,4vw,44px);
  line-height:1.12;
  letter-spacing:-.02em;
}

.arb-section-head p{
  margin:0;
  color:var(--arb-muted);
  font-size:16px;
  line-height:1.85;
}

.arb-card-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:22px;
}

.arb-app-card{
  display:flex;
  flex-direction:column;
  height:100%;
  padding:24px;
  background:var(--arb-card);
  border:1px solid var(--arb-line);
  border-radius:24px;
  box-shadow:var(--arb-shadow);
}

.arb-app-card img{
  width:88px;
  height:88px;
  border-radius:20px;
  display:block;
  margin-bottom:16px;
}

.arb-app-card h3{
  margin:0 0 10px;
  font-size:22px;
  line-height:1.2;
}

.arb-app-card h3 a{
  color:var(--arb-text);
  text-decoration:none;
}

.arb-app-card ul{
  margin:0 0 18px;
  padding-left:18px;
  color:var(--arb-muted);
  line-height:1.8;
  font-size:14px;
}

.arb-card-btn{
  margin-top:auto;
  display:inline-flex;
  justify-content:center;
  align-items:center;
  min-height:46px;
  width:100%;
  border-radius:14px;
  background:var(--arb-primary);
  color:#fff;
  text-decoration:none;
  font-weight:800;
}

.arb-card-btn:hover{
  background:var(--arb-primary-dark);
}

.arb-link-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
}

.arb-link-grid a{
  display:block;
  padding:18px 20px;
  background:#fff;
  border:1px solid var(--arb-line);
  border-radius:18px;
  text-decoration:none;
  color:var(--arb-text);
  font-weight:700;
  box-shadow:var(--arb-shadow);
}

.arb-link-grid a:hover{
  color:var(--arb-primary);
}

.arb-why-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:28px;
  align-items:start;
}

.arb-why-copy h2{
  margin:0 0 14px;
  font-size:clamp(28px,4vw,44px);
  line-height:1.12;
}

.arb-why-copy p{
  margin:0 0 14px;
  color:var(--arb-muted);
  font-size:16px;
  line-height:1.85;
}

.arb-why-boxes{
  display:grid;
  gap:16px;
}

.arb-why-box{
  background:#fff;
  border:1px solid var(--arb-line);
  border-radius:20px;
  padding:22px;
  box-shadow:var(--arb-shadow);
}

.arb-why-box h3{
  margin:0 0 8px;
  font-size:20px;
}

.arb-why-box p{
  margin:0;
  color:var(--arb-muted);
  line-height:1.8;
}

.arb-steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
}

.arb-step{
  background:#fff;
  border:1px solid var(--arb-line);
  border-radius:22px;
  padding:24px;
  box-shadow:var(--arb-shadow);
}

.arb-step span{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:42px;
  height:42px;
  border-radius:50%;
  background:#eaf2ff;
  color:var(--arb-primary);
  font-weight:800;
  margin-bottom:14px;
}

.arb-step h3{
  margin:0 0 10px;
  font-size:20px;
}

.arb-step p{
  margin:0;
  color:var(--arb-muted);
  line-height:1.8;
}

.arb-faq{
  max-width:900px;
  margin:0 auto;
  display:grid;
  gap:14px;
}

.arb-faq details{
  background:#fff;
  border:1px solid var(--arb-line);
  border-radius:18px;
  padding:18px 20px;
  box-shadow:var(--arb-shadow);
}

.arb-faq summary{
  cursor:pointer;
  list-style:none;
  font-weight:800;
  line-height:1.6;
}

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

.arb-faq p{
  margin:12px 0 0;
  color:var(--arb-muted);
  line-height:1.85;
}

.arb-legal{
  background:linear-gradient(180deg,#ffffff 0%,#f6f8fb 100%);
}

.arb-legal .arb-container{
  max-width:900px;
  padding:28px;
  background:#fff;
  border:1px solid var(--arb-line);
  border-radius:24px;
  box-shadow:var(--arb-shadow);
}

.arb-legal h2{
  margin:0 0 12px;
  font-size:30px;
}

.arb-legal p{
  margin:0 0 10px;
  color:var(--arb-muted);
  line-height:1.85;
}

.arb-footer{
  padding:28px 0 36px;
  border-top:1px solid var(--arb-line);
}

.arb-footer-inner{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
}

.arb-footer p{
  margin:0;
  color:var(--arb-muted);
  font-size:14px;
}

.arb-footer-links{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
}

.arb-footer-links a{
  color:var(--arb-text);
  text-decoration:none;
  font-size:14px;
  font-weight:700;
}

.arb-footer-links a:hover{
  color:var(--arb-primary);
}

/* Tablet */
@media (max-width: 1100px){
  .arb-card-grid{
    grid-template-columns:repeat(3,1fr);
  }

  .arb-link-grid{
    grid-template-columns:repeat(2,1fr);
  }

  .arb-steps{
    grid-template-columns:repeat(2,1fr);
  }

  .arb-strip-grid{
    grid-template-columns:1fr;
  }
}

/* Mobile */
@media (max-width: 767px){
  .arb-container{
    width:min(100% - 20px, 1200px);
  }

  .arb-header-inner{
    min-height:64px;
  }

  .arb-nav{
    display:none;
  }

  .arb-hero{
    padding:34px 0 20px;
  }

  .arb-hero-grid,
  .arb-why-grid,
  .arb-card-grid,
  .arb-link-grid,
  .arb-steps{
    grid-template-columns:1fr;
    gap:16px;
  }

  .arb-section{
    padding:52px 0;
  }

  .arb-hero h1{
    font-size:36px;
  }

  .arb-section-head{
    margin-bottom:24px;
  }

  .arb-section-head h2,
  .arb-why-copy h2{
    font-size:30px;
  }

  .arb-hero-actions{
    flex-direction:column;
  }

  .arb-btn{
    width:100%;
  }

  .arb-app-card,
  .arb-step,
  .arb-why-box,
  .arb-strip-card{
    padding:20px;
  }

  .arb-legal .arb-container{
    padding:22px 18px;
  }

  .arb-footer-inner{
    flex-direction:column;
    align-items:flex-start;
  }
}