:root { color-scheme: light; font-family: system-ui, sans-serif; color: #193b42; background: #f2f6f5; }
body { margin: 0; } .billing-shell { max-width: 650px; margin: 60px auto; padding: 0 24px; }
a { color: #256b71; } .back { text-decoration: none; } header { margin: 48px 0 30px; } h1 { font-size: 36px; margin: 12px 0; letter-spacing: -1px; }
.eyebrow { font-size: 12px; font-weight: 700; letter-spacing: 2px; color: #577476; }
.plan-card { background: white; border: 1px solid #dce7e4; border-radius: 22px; padding: 34px; box-shadow: 0 12px 42px #173e3a08; }
h2 { font-size: 46px; margin: 22px 0; } small { font-size: 17px; font-weight: 400; color: #667d7d; } p { line-height: 1.65; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 25px 0; } button { cursor: pointer; padding: 13px 20px; border: 1px solid #246c69; border-radius: 10px; font: inherit; font-weight: 600; color: white; background: #246c69; }
button.secondary { color: #246c69; background: white; } button:disabled { opacity: .6; cursor: wait; }
.help, .footer { font-size: 13px; color: #627575; } .footer { margin-top: 24px; } #billing-plan-status { font-weight: 600; } #billing-message { color: #785424; }
@media(max-width: 480px) { .billing-shell { margin-top: 30px; } .plan-card { padding: 22px; } h2 { font-size: 38px; } }