* {
  box-sizing: border-box;
}

:root {
  color-scheme: dark;
  --bg: #071018;
  --panel: rgba(8, 12, 16, 0.26);
  --panel-strong: rgba(8, 12, 16, 0.38);
  --border: rgba(255, 255, 255, 0.14);
  --text: #f8fbff;
  --muted: rgba(226, 240, 255, 0.72);
  --cyan: #67e8f9;
  --green: #22c55e;
  --red: #ef4444;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  background:
    linear-gradient(rgba(0, 0, 0, 0.12), rgba(0, 0, 0, 0.12)),
    radial-gradient(circle at top right, rgba(103, 232, 249, 0.12), transparent 34%),
    var(--bg);
}

.bridge-shell {
  width: min(100%, 1120px);
  min-height: 100vh;
  margin: 0 auto;
  display: grid;
  align-content: center;
  gap: 20px;
  padding: clamp(18px, 4vw, 42px);
}

.bridge-shell header,
.bridge-shell article,
.bridge-message {
  border: 1px solid var(--border);
  background: var(--panel);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1), 0 14px 34px rgba(0, 0, 0, 0.18);
  backdrop-filter: blur(8px) saturate(130%);
  -webkit-backdrop-filter: blur(8px) saturate(130%);
}

.bridge-shell header {
  padding: clamp(22px, 4vw, 38px);
  border-radius: 18px;
}

.bridge-shell header span,
.bridge-shell article span {
  color: var(--cyan);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.bridge-shell h1 {
  margin: 8px 0 10px;
  font-size: clamp(32px, 5vw, 58px);
  line-height: 0.98;
  letter-spacing: 0;
}

.bridge-shell p {
  max-width: 720px;
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.55;
}

.cards {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.bridge-shell article {
  min-height: 112px;
  display: grid;
  gap: 10px;
  align-content: center;
  padding: 18px;
  border-radius: 14px;
}

.bridge-shell article strong {
  overflow: hidden;
  color: var(--text);
  font-size: clamp(22px, 3vw, 34px);
  line-height: 1;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.bridge-message {
  margin: 0;
  padding: 14px 18px;
  border-radius: 14px;
}

.bridge-message.success {
  color: #dcfce7;
  border-color: rgba(34, 197, 94, 0.32);
}

.bridge-message.error {
  color: #fee2e2;
  border-color: rgba(239, 68, 68, 0.34);
}

@media (max-width: 860px) {
  .cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .cards {
    grid-template-columns: 1fr;
  }
}