:root{
  --text: #111827;
  --muted: #6b7280;
  --border: #f3f4f6;
  --bg: #ffffff;
  --btnBorder: #e5e7eb;
  --btnHover: #f9fafb;
  --shadow: 0 10px 15px -3px rgba(0,0,0,.10), 0 4px 6px -4px rgba(0,0,0,.10);
  --radius: 16px;
}

*{ box-sizing: border-box; }

html, body{
  margin:0;
  padding:0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

a{ color: inherit; text-decoration: none; }

.container{
  max-width: 1120px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

@media (max-width: 640px){
  .container{
    padding-left: 16px;
    padding-right: 16px;
  }
}

/* Header */
.site-header{
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 10;
}

.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 18px 0;
  position: relative;
}

.brand__logo{
  height: 32px;
  width: auto;
  display:block;
}

.nav-links{
  display:flex;
  gap: 28px;
}

.nav-links a{
  color: var(--muted);
  transition: color .15s ease;
}
.nav-links a:hover{ color: var(--text); }

/* Mobile button */
.menu-btn{
  display:none;
  border: 0;
  background: transparent;
  padding: 10px;
  border-radius: 10px;
}
.menu-btn:hover{ background: #f3f4f6; }
.menu-btn__bar{
  display:block;
  width: 22px;
  height: 2px;
  background: #4b5563;
  margin: 4px 0;
}

/* Mobile dropdown */
.mobile-menu{
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  box-shadow: var(--shadow);
}
.mobile-menu__inner{
  display:flex;
  flex-direction: column;
  gap: 12px;
  padding: 14px 16px;
}
.mobile-menu a{
  color: var(--muted);
  font-size: 18px;
  padding: 8px 0;
}
.mobile-menu a:hover{ color: var(--text); }

.hidden{ display:none; }

/* Sections */
.section{ padding: 56px 0; }
.section--apps{ padding-top: 64px; }

/* Apps grid */
.apps-grid{
  display:flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}

.app-icon{
  display:block;
  border-radius: var(--radius);
  transition: transform .25s ease, z-index .25s ease;
  position: relative;
}

.app-icon img{
  display:block;
  width: 64px;
  height: 64px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.app-icon:hover{
  transform: scale(1.10);
  z-index: 2;
}

/* Responsive icon sizes */
@media (min-width: 640px){
  .app-icon img{ width: 80px; height: 80px; }
}
@media (min-width: 768px){
  .app-icon img{ width: 96px; height: 96px; }
}

/* CTA */
.section--cta{
  border-top: 1px solid var(--border);
}

.cta{
  max-width: 640px;
  text-align: center;
}

.cta h2{
  margin:0 0 10px 0;
  font-size: 24px;
  font-weight: 600;
}
.cta p{
  margin:0 0 22px 0;
  color: var(--muted);
}

.btn{
  display:inline-flex;
  align-items:center;
  gap: 8px;
  padding: 12px 18px;
  border: 1px solid var(--btnBorder);
  border-radius: 12px;
  color: #374151;
  background: #fff;
  transition: background .15s ease;
}
.btn:hover{ background: var(--btnHover); }

/* Footer */
.site-footer{
  border-top: 1px solid var(--border);
  padding: 22px 0;
  margin-top: 36px;
}

.footer{
  display:flex;
  flex-direction: column;
  gap: 14px;
  align-items: center;
  justify-content: space-between;
  color: var(--muted);
}

.footer__links{
  display:flex;
  gap: 22px;
  flex-wrap: wrap;
  justify-content: center;
}

.footer__links a{
  color: var(--muted);
}
.footer__links a:hover{
  color: var(--text);
}

/* Responsive nav */
@media (max-width: 768px){
  .nav-links{ display:none; }
  .menu-btn{ display:inline-block; }
}
@media (min-width: 769px){
  .mobile-menu{ display:none !important; }
  .footer{
    flex-direction: row;
  }
}

/* Legal pages */
.legal{
  max-width: 880px;
  margin: 0 auto;
}

.legal h1{
  font-size: clamp(10px, 5vw, 56px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0 0 14px 0;
}

.legal h2{
  font-size: clamp(24px, 3vw, 22px);
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 34px 0 12px 0;
}

.legal h3{
  font-size: 20px;
  margin: 22px 0 10px 0;
}

.legal p, .legal li{
  color: var(--text);
  font-size: 18px;
  line-height: 1.75;
}

.legal ul{
  padding-left: 22px;
  margin: 10px 0 16px;
}

.muted{
  color: var(--muted);
  font-size: 18px;
}

.faq-list{
  margin-top: 18px;
  display: grid;
  gap: 12px;
}

.faq{
  border: 1px solid var(--btnBorder);
  border-radius: 12px;
  padding: 0;
  background: #fff;
  box-shadow: 0 1px 0 rgba(0,0,0,0.02);
}

.faq__q{
  cursor: pointer;
  padding: 14px 14px;
  list-style: none;
  font-weight: 600;
}

.faq__q::-webkit-details-marker{ display:none; }

.faq[open] .faq__q{
  border-bottom: 1px solid var(--border);
}

.faq__a{
  padding: 12px 14px 14px 14px;
  color: var(--muted);
}

.faq__a p{ margin: 0 0 10px 0; }
.faq__a ul{ margin: 8px 0 0 0; padding-left: 18px; }

.help-cta{
  margin-top: 22px;
  display: grid;
  justify-items: center;
  gap: 10px;
}

.notice{
  margin-top: 14px;
  border: 1px solid var(--btnBorder);
  background: #f9fafb;
  border-radius: 12px;
  padding: 12px 14px;
  color: #374151;
}

.contact-grid{
  margin-top: 18px;
  display: grid;
  gap: 14px;
}

.card{
  border: 1px solid var(--btnBorder);
  border-radius: 12px;
  padding: 14px;
  background: #fff;
  box-shadow: 0 1px 0 rgba(0,0,0,0.02);
}

.card h2{
  margin: 0 0 8px 0;
  font-size: 18px;
}

.contact-email{
  margin: 8px 0 0 0;
  font-weight: 600;
}

.form{
  display: grid;
  gap: 12px;
  margin-top: 6px;
}

.form label span{
  display:block;
  font-size: 14px;
  color: #374151;
  margin-bottom: 6px;
  font-weight: 500;
}

.form input, .form textarea{
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--btnBorder);
  border-radius: 10px;
  font: inherit;
  outline: none;
}

.form input:focus, .form textarea:focus{
  border-color: #c7cbd1;
  box-shadow: 0 0 0 3px rgba(0,0,0,0.06);
}

.small{ font-size: 13px; }

@media (min-width: 880px){
  .contact-grid{
    grid-template-columns: 1fr 1.2fr;
    align-items: start;
  }
}

.legal-sep{
  border: 0;
  border-top: 1px solid var(--border);
  margin: 22px 0;
}