* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; font-family: Segoe UI, Arial, sans-serif; background: #101820; color: #f2f7fb; }
.app-shell { min-height: calc(100vh - 52px); display: grid; place-items: center; padding: 32px; }
section { width: min(760px, 100%); border: 1px solid #334155; background: #162331; padding: 28px; border-radius: 8px; }
h1 { margin: 0 0 12px; font-size: 34px; letter-spacing: 0; }
p { margin: 0; color: #c9d6e2; }
.managed-release-footer { position: fixed; left: 0; right: 0; bottom: 0; padding: 12px 18px; background: #0b1117; color: #d6e4ef; border-top: 1px solid #283848; font-size: 14px; }
.managed-release-footer .environment { color: #6ee7b7; font-weight: 700; }