:root{
  --brand-1: #003b6f;
  --brand-2: #0060b3;
  --muted: #6b7280;
  --bg: #f7f9fb;
  --card-shadow: 0 8px 24px rgba(11,37,68,0.06);
  --radius: 12px;
  --max: 1100px;
  --accent: #0066b2;
}

/* Reset + base */
* { box-sizing: border-box; margin: 0; padding: 0; }
html,body { height: 100%; }
body{
  margin:0;
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  color:#111827;
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  line-height:1.45;
  -webkit-font-feature-settings: "liga" 0;
}

/* Layout */
.container-max { max-width: var(--max); margin: 0 auto; padding: 0 22px; }

/* Header */
.topbar{
  position:sticky; top:0; z-index:1200;
  backdrop-filter: blur(6px);
  background: linear-gradient(180deg, rgba(255,255,255,0.95), rgba(255,255,255,0.9));
  border-bottom: 1px solid rgba(15,23,42,0.05);
}
.topbar-inner{
  max-width:var(--max); margin:0 auto; padding:12px 18px;
  display:flex; align-items:center; justify-content:space-between; gap:12px;
}
.brand { display:flex; align-items:center; gap:12px; text-decoration:none; color:inherit; }
.logo-mark{ width:40px;height:40px;border-radius:8px;
  background:linear-gradient(135deg,var(--brand-1),var(--brand-2));
  display:grid; place-items:center; color:white; font-weight:700; font-size:18px;
  box-shadow: 0 6px 18px rgba(3,22,55,0.12);
}
.brand-title { line-height:1; }
.brand-title h1{ margin:0;font-size:16px; }
.brand-title small{ display:block;font-size:12px;color:var(--muted);font-weight:600 }

/* Nav */
.nav{ display:flex; align-items:center; gap:18px; }
.nav a{ text-decoration:none;color:var(--brand-1); font-weight:600; font-size:14px; padding:8px 10px;border-radius:8px; }
.nav a:hover, .nav a:focus{ background: rgba(0,95,179,0.06); outline:none; }
.cta {
  background: linear-gradient(90deg,var(--brand-1),var(--brand-2));
  color:white; padding:10px 14px;border-radius:10px;font-weight:700;
  text-decoration:none;font-size:14px; box-shadow: 0 8px 20px rgba(0,95,179,0.12);
}
.cta:focus{ outline:2px solid rgba(0,95,179,0.18); outline-offset:3px; }

/* Mobile */
.hamburger{ display:none; background:transparent;border:0;padding:8px;border-radius:8px; cursor:pointer;color:var(--brand-1); font-size:20px; }
.drawer {
  position:fixed; right:0; top:0; height:100vh; width:320px; background:white;
  box-shadow: -12px 0 30px rgba(3,22,55,0.12); transform:translateX(110%); transition:transform .28s ease;
  z-index:1400; padding:20px; display:flex; flex-direction:column;
}
.drawer.show{ transform:translateX(0) }
.drawer a{ display:block; padding:12px 8px; color:var(--brand-1); text-decoration:none; font-weight:600 }
.drawer .close{ margin-left:auto; display:block; text-align:right; font-size:20px; background:transparent;border:0;color:var(--muted) }

/* Hero (primary) */
.hero-section {
  background: linear-gradient(135deg, #0066b2 0%, #0052a3 100%);
  padding: 56px 22px;
  display: flex; justify-content: center; align-items: center; gap: 40px;
  flex-wrap: wrap;
}
.hero-content { display:flex; align-items:center; gap:30px; max-width:680px; color:white; }
.icon-circle { background: rgba(255,255,255,0.95); border-radius:50%; width:200px; height:200px; display:flex; align-items:center; justify-content:center; flex-shrink:0; }
.icon-content { position: relative; width:120px; height:140px; }
.phone-icon { position:absolute; width:60px; height:100px; border:4px solid var(--accent); border-radius:8px; background:#fff; left:0; top:20px; }
.phone-screen{ width:40px; height:30px; background:#00a9e0; margin:10px auto 0; border-radius:2px; }
.phone-lines{ width:30px; height:2px; background:#fff; margin:4px auto; }
.check-icon{ position:absolute; width:80px; height:50px; border:4px solid var(--accent); border-radius:4px; background:#fff; right:0; top:0; transform:rotate(-10deg); }
.check-lines{ width:50px; height:3px; background:var(--accent); margin:8px auto 4px; }

.hero-text h1{ font-size:32px; margin-bottom:12px; font-weight:600; color:white; }
.hero-text p{ color:rgba(255,255,255,0.92); margin-bottom:18px; font-size:16px; }
.learn-more-btn{ background:#2e7d32; color:white; border:none; padding:12px 20px; border-radius:6px; cursor:pointer; font-weight:600; }
.learn-more-btn:hover{ background:#256328; }

/* Login card in hero */
.login-card{ background:white; border-radius:10px; padding:28px; width:360px; box-shadow: 0 6px 20px rgba(3,22,55,0.06); }
.login-card h2{ font-size:24px; margin-bottom:10px; color:#08203a; font-weight:600; }
.form-group{ margin-bottom:14px; }
.form-group label{ display:block; color:#444; font-size:14px; margin-bottom:6px; }
.input-wrapper{ position:relative; }
.input-field{ width:100%; padding:10px 12px; border:1px solid #e6e6e6; border-radius:6px; font-size:15px; }
.show-password{ position:absolute; right:10px; top:50%; transform:translateY(-50%); background:transparent;border:0;color:var(--accent); cursor:pointer; font-weight:600; }

/* Category carousel & products */
.container { max-width:1200px; margin:40px auto; padding:0 22px; }
.category-carousel-wrapper { position:relative; margin-bottom:28px; }
.category-carousel { overflow:hidden; }
.category-track{ display:flex; transition:transform .4s ease; }
.category-slide{ min-width:100%; display:flex; justify-content:center; gap:40px; flex-wrap:wrap; padding:18px 0; }
.category-item{ display:flex; flex-direction:column; align-items:center; gap:8px; cursor:pointer; padding:10px; position:relative; border-radius:8px; }
.category-item.active{ background:rgba(0,102,178,0.06); }
.category-icon{ width:60px; height:60px; display:flex; align-items:center; justify-content:center; color:var(--accent); }
.category-label{ color:var(--accent); font-size:14px; text-align:center; font-weight:600; }

.category-arrow{ position:absolute; top:50%; transform:translateY(-50%); background:white; border:2px solid var(--accent); color:var(--accent); width:40px; height:40px; border-radius:50%; display:flex; align-items:center; justify-content:center; cursor:pointer; z-index:10; }
.category-arrow.left{ left:6px; } .category-arrow.right{ right:6px; }

.carousel-dots{ display:flex; justify-content:center; gap:10px; margin-top:14px; }
.dot{ width:12px; height:12px; border-radius:50%; border:2px solid var(--accent); background:#fff; cursor:pointer; }
.dot.active{ background:var(--accent); }

/* Cards */
.products-section{ display:flex; gap:20px; padding:20px 10px; flex-wrap:wrap; justify-content:center; }
.card{ flex:1 1 300px; border-radius:10px; overflow:hidden; display:flex; flex-direction:column; background:white; box-shadow:var(--card-shadow); min-width:260px; max-width:380px; }
.card-header{ background:var(--accent); color:white; padding:28px; display:flex; justify-content:space-between; align-items:center; }
.card-title{ font-size:18px; line-height:1.05; }
.card-body{ padding:20px; display:flex; flex-direction:column; gap:12px; }
.card-button{ background:var(--accent); color:white; border:0; padding:12px 18px; border-radius:8px; cursor:pointer; font-weight:700; }

/* Knowledge & features */
.knowledge{ max-width:var(--max); margin:32px auto; display:flex; gap:22px; align-items:center; padding:0 22px; }
.knowledge .img{ flex:0 0 360px; border-radius:14px; overflow:hidden; box-shadow:var(--card-shadow) }
.k-title{ font-size:22px; margin:0 0 12px; color:#08203a }
.k-desc{ color:var(--muted); margin:0 0 16px }

/* Footer */
footer { margin-top:40px; background:white; border-top:1px solid rgba(15,23,42,0.06); }
.footer-main{ max-width:var(--max); margin:0 auto; padding:28px 22px; display:grid; grid-template-columns:1fr 1fr; gap:20px; align-items:start; }
.footer-links { display:grid; grid-template-columns: repeat(2,1fr); gap:8px; }
.legal{ max-width:var(--max); margin:0 auto; padding:20px; color:var(--muted); font-size:13px; }

/* Responsive */
@media (max-width: 900px){
  .nav{ display:none; } .hamburger{ display:inline-flex; }
  .topbar-inner{ padding:8px 12px; }
  .hero-content{ justify-content:center; text-align:center; }
  .login-card{ width:100%; max-width:420px; }
  .category-arrow.left{ left:4px; } .category-arrow.right{ right:4px; }
  .footer-main{ grid-template-columns:1fr; }
}
@media (max-width: 600px){
  .icon-circle{ width:150px; height:150px; }
  .hero-text h1{ font-size:24px; }
  .card{ max-width:100%; }
}