:root{color-scheme:dark;font-family:Inter,Segoe UI,Arial,sans-serif;background:#081322;color:#eaf1fb}*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 10% -30%,#1a3b55 0,transparent 55%),#081322;min-height:100vh}button,a{font:inherit}button{cursor:pointer}.billing-shell{max-width:1340px;margin:auto;padding:30px 32px 80px}.billing-hero{display:flex;justify-content:space-between;align-items:center;margin:12px 0 28px;gap:20px}.billing-hero h1{font-size:clamp(28px,3vw,42px);line-height:1.15;margin:10px 0}.billing-hero p{max-width:760px;color:#a9bed3;line-height:1.6}.hero-mark{padding:10px;border-radius:18px;background:linear-gradient(135deg,#112c4b,#183f59);border:1px solid #2e5870}.eyebrow{color:#65d7e0;letter-spacing:.13em;font-size:11px;font-weight:800}.panel{background:linear-gradient(160deg,rgba(21,42,63,.94),rgba(12,29,47,.95));border:1px solid #28475e;border-radius:17px;padding:25px;box-shadow:0 10px 28px #06101c40;margin-bottom:18px}.summary-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.summary h2{margin:16px 0 8px;font-size:28px}.summary p,.plan p,.account p{color:#a9bed3;line-height:1.55}.status{font-weight:700;color:#5fe1bf}.section-heading{margin:30px 0 15px}.section-heading h2{margin:0;font-size:24px}.section-heading p{color:#a9bed3}.plans{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.plan{display:flex;flex-direction:column}.plan h3{font-size:26px;margin:14px 0 10px}.plan ul{color:#c4d8e7;padding-left:20px;line-height:1.9;flex:1}.plan .price-status{font-size:13px;color:#6cd4ea}.plan label{font-size:13px;margin:5px 0;color:#c4d8e7}.plan select{background:#071a2d;color:#ebf6ff;border:1px solid #3c6883;border-radius:8px;padding:10px;margin:7px 0 16px;width:100%}.plan button,.account button,.primary-link{display:inline-block;padding:12px 16px;border:1px solid #24bcbf;border-radius:10px;background:#087e90;color:#f4ffff;font-weight:700;text-decoration:none}.plan button:disabled,.account button:disabled{opacity:.45;cursor:not-allowed}.account{display:flex;align-items:center;justify-content:space-between;gap:20px}.usage{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.usage-item{background:#0b2339;padding:15px;border-radius:10px;border:1px solid #29455d}.usage-item strong{display:block;font-size:22px;margin-top:10px}.small{font-size:12px}.notice{border:1px solid #e1a05d;color:#ffd8a0;padding:14px;border-radius:10px;margin-bottom:16px;background:#5c381b48}.notice.good{color:#baf5de;border-color:#2b8e7a;background:#1a594038}@media(max-width:860px){.summary-grid,.plans{grid-template-columns:1fr}.usage{grid-template-columns:repeat(2,1fr)}.account{flex-direction:column;align-items:flex-start}.billing-shell{padding:18px}}