:root{--ac-brand:#1d4ed8;--ac-brand-dark:#1e40af;--ac-bg:#f6f7fb;--ac-card-bg:#fff;--ac-text:#16181d;--ac-text-muted:#6b7280;--ac-border:#e3e6ec;--ac-error:#b91c1c;--ac-ok:#047857;--ac-warn:#b45309;--ac-radius:14px;--ac-font:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}.ac-page{font-family:var(--ac-font);background:var(--ac-bg);color:var(--ac-text);min-height:100vh;padding:40px 16px 80px}.ac-container{max-width:640px;margin:0 auto}.ac-title{font-size:1.6rem;font-weight:700;text-align:center;margin:0 0 24px}.ac-card{background:var(--ac-card-bg);border:1px solid var(--ac-border);border-radius:var(--ac-radius);padding:24px;margin-bottom:16px}.ac-card h2{font-size:1.02rem;margin:0 0 14px}.ac-intro{font-size:.92rem;margin:0 0 16px}.ac-intro,.ac-session{color:var(--ac-text-muted)}.ac-session{text-align:center;font-size:.78rem;margin-bottom:18px}.ac-session.ac-session--warning{color:var(--ac-warn);font-weight:600}.ac-field{margin-bottom:14px}.ac-field label{display:block;font-size:.85rem;font-weight:600;margin-bottom:5px}.ac-field input{width:100%;box-sizing:border-box;padding:10px 12px;border:1px solid var(--ac-border);border-radius:8px;font-size:.95rem;font-family:inherit}.ac-field input:focus{outline:2px solid var(--ac-brand);outline-offset:-1px}#code-input{letter-spacing:.5em;font-size:1.3rem;text-align:center}.ac-button{width:100%;padding:12px 16px;background:var(--ac-brand);color:#fff;font-size:.98rem;font-weight:600;border:none;border-radius:10px;cursor:pointer;margin-top:6px}.ac-button:hover{background:var(--ac-brand-dark)}.ac-button:disabled{opacity:.55;cursor:not-allowed}.ac-button--secondary{background:#fff;color:var(--ac-text);border:1px solid var(--ac-border)}.ac-button--secondary:hover{background:#f3f4f6}.ac-button--danger-link{background:none;border:none;color:var(--ac-text-muted);text-decoration:underline;font-size:.85rem;cursor:pointer;margin-top:16px}.ac-button--danger-link:hover{color:var(--ac-error)}.ac-link-button{background:none;border:none;color:var(--ac-brand);text-decoration:underline;font-size:.85rem;cursor:pointer;padding:0}.ac-link-button:disabled{opacity:.5;cursor:not-allowed;text-decoration:none}.ac-error{color:var(--ac-error);background:#fef2f2;border:1px solid #fecaca;border-radius:8px}.ac-error,.ac-info{padding:10px 12px;font-size:.88rem;margin:10px 0}.ac-info{color:var(--ac-ok);background:#ecfdf5;border:1px solid #a7f3d0;border-radius:8px}.ac-notice{color:var(--ac-warn);background:#fffbeb;border:1px solid #fde68a;border-radius:8px;padding:10px 12px;font-size:.88rem;margin:10px 0}.ac-plan-current{display:flex;justify-content:space-between;align-items:baseline;background:#f4f7ff;border:2px solid var(--ac-brand);border-radius:10px;padding:14px 16px;margin-bottom:10px}.ac-plan-current strong{font-size:1.1rem}.ac-plan-price{font-weight:700;white-space:nowrap}.ac-meta{display:flex;justify-content:space-between;font-size:.88rem;padding:4px 0}.ac-meta span:first-child{color:var(--ac-text-muted)}.ac-option{align-items:center;border:1px solid var(--ac-border);border-radius:10px;padding:12px 16px;margin-bottom:8px}.ac-line,.ac-option{display:flex;justify-content:space-between}.ac-line{font-size:.92rem;padding:4px 0}.ac-line--credit{color:var(--ac-ok)}.ac-line--total{border-top:1px solid var(--ac-border);margin-top:8px;padding-top:10px;font-weight:700;font-size:1.02rem}.ac-fineprint{color:var(--ac-text-muted);font-size:.78rem;margin-top:10px}