:root{--platform-bg:#f7f8fa;--platform-surface:#fff;--platform-text:#16181d;--platform-muted:#5b6472;--platform-border:#e3e6ec;--platform-accent:#0075b6;--platform-accent-hover:#005c90;--platform-error:#b3261e;--platform-error-bg:#fdeceb;--platform-success-bg:#eaf5ee;--platform-success-border:#b6ddc4}*{box-sizing:border-box}body{background:var(--platform-bg);color:var(--platform-text);-webkit-font-smoothing:antialiased;margin:0;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.5}.platform{justify-content:center;align-items:center;min-height:100vh;padding:2rem 1rem;display:flex}.platform-card{background:var(--platform-surface);border:1px solid var(--platform-border);border-radius:14px;width:100%;max-width:520px;padding:2.5rem;box-shadow:0 1px 3px #1418210f,0 8px 24px #1418210a}.platform-card__eyebrow{letter-spacing:.08em;text-transform:uppercase;color:var(--platform-accent);margin:0 0 .5rem;font-size:.75rem;font-weight:700}.platform-card__title{margin:0 0 .5rem;font-size:1.75rem;font-weight:800;line-height:1.2}.platform-card__lede{color:var(--platform-muted);margin:0 0 1.75rem}.platform-field{margin-bottom:1.25rem;display:block}.platform-field__label{margin-bottom:.375rem;font-size:.875rem;font-weight:600;display:block}.platform-field__hint{color:var(--platform-muted);margin-top:.125rem;font-size:.8125rem;font-weight:400;display:block}.platform-field__input{width:100%;color:inherit;background:var(--platform-surface);border:1px solid var(--platform-border);border-radius:8px;padding:.7rem .85rem;font-family:inherit;font-size:1rem}.platform-field__input:focus-visible{outline:2px solid var(--platform-accent);outline-offset:1px;border-color:var(--platform-accent)}.platform-button{color:#fff;background:var(--platform-accent);cursor:pointer;border:0;border-radius:8px;width:100%;padding:.8rem 1rem;font-family:inherit;font-size:1rem;font-weight:650}.platform-button:hover:not(:disabled){background:var(--platform-accent-hover)}.platform-button:focus-visible{outline:2px solid var(--platform-text);outline-offset:2px}.platform-button:disabled{opacity:.6;cursor:default}.platform-error{background:var(--platform-error-bg);color:var(--platform-error);border-radius:8px;margin-bottom:1.25rem;padding:.75rem .9rem;font-size:.9375rem}.platform-notice{background:var(--platform-success-bg);border:1px solid var(--platform-success-border);border-radius:10px;margin-bottom:1.25rem;padding:1.25rem}.platform-notice__title{margin:0 0 .375rem;font-size:1.125rem;font-weight:700}.platform-notice__body{color:var(--platform-muted);margin:0}.platform-footnote{color:var(--platform-muted);margin:1.5rem 0 0;font-size:.8125rem}.platform-link{color:var(--platform-accent);font-weight:600}.platform-cta{background:var(--platform-accent);color:#fff;border-radius:8px;margin-top:1rem;padding:.7rem 1.2rem;font-weight:650;text-decoration:none;display:inline-block}.platform-cta:hover{background:var(--platform-accent-hover)}@media (max-width:520px){.platform-card{padding:1.5rem}.platform-card__title{font-size:1.5rem}}