:root {
  --bg-dark: #07090f;
  --bg-card: rgba(17, 24, 39, 0.82);
  --primary: #7c9cff;
  --teal: #2dd4bf;
  --gold: #f8c76b;
  --text-main: #f8fafc;
  --text-muted: #9aa6b8;
  --border-color: rgba(148, 163, 184, 0.16);
}
body {
  overflow-x: hidden;
  background:
    linear-gradient(115deg, rgba(45, 212, 191, 0.08), transparent 34%),
    linear-gradient(245deg, rgba(124, 156, 255, 0.12), transparent 42%),
    #07090f !important;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: .22;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, #000, transparent 75%);
}
header {
  position: sticky;
  top: 0;
  z-index: 2;
  padding: 18px clamp(20px, 5vw, 54px) !important;
  background: rgba(8, 12, 22, .84) !important;
  border-bottom: 1px solid var(--border-color) !important;
  backdrop-filter: blur(18px);
}
header .logo {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--teal));
  color: transparent;
  font-size: 0 !important;
}
header .logo::before {
  content: "BT";
  color: #fff;
  font-size: 13px;
  font-weight: 950;
}
header h1 { font-size: 16px !important; font-weight: 850 !important; }
header span { color: var(--text-muted) !important; }
.container {
  position: relative;
  max-width: 900px !important;
  margin: 0 auto !important;
  padding: 54px 24px 90px !important;
  animation: pageIn .45s cubic-bezier(.2,.8,.2,1) both;
}
.container > h2:first-child {
  font-size: clamp(36px, 6vw, 64px) !important;
  line-height: 1;
  letter-spacing: 0;
}
h2 { color: var(--text-main); font-weight: 850 !important; }
h3 {
  color: #c9d3ff !important;
  margin-top: 34px !important;
}
p, ul { color: #cbd5e1 !important; }
p, li, .warning-box { overflow-wrap: anywhere; }
.last-updated { color: var(--text-muted) !important; }
.warning-box, .contact-box {
  border-radius: 8px !important;
  backdrop-filter: blur(16px);
  box-shadow: 0 18px 48px rgba(0,0,0,.24);
}
.warning-box {
  background: rgba(255, 91, 124, .10) !important;
  border-color: rgba(255, 91, 124, .28) !important;
}
.warning-box strong { color: #ff8ca3 !important; }
.contact-box {
  background: rgba(17, 24, 39, .78) !important;
  border-color: var(--border-color) !important;
}
.back-btn {
  border-radius: 8px !important;
  background: linear-gradient(135deg, var(--primary), #4867f2) !important;
  box-shadow: 0 16px 34px rgba(72, 103, 242, .25);
  font-weight: 800 !important;
  transition: transform .2s, box-shadow .2s;
}
.back-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 20px 42px rgba(72, 103, 242, .34);
}
@keyframes pageIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: none; }
}
@media (max-width: 760px) {
  header {
    padding: 14px 18px !important;
  }
  header h1 { font-size: 14px !important; }
  header span { font-size: 12px !important; }
  .container {
    width: min(300px, calc(100vw - 32px)) !important;
    max-width: min(300px, calc(100vw - 32px)) !important;
    padding: 42px 0 70px !important;
  }
  .container > h2:first-child {
    font-size: 34px !important;
  }
  .warning-box, .contact-box {
    padding: 16px !important;
  }
}