.start{position:relative;min-height:100dvh;display:grid;place-items:center;padding:var(--s-8) var(--s-4)}.start__bg{position:fixed;inset:0;z-index:0;pointer-events:none;background:radial-gradient(60% 50% at 50% 0,color-mix(in srgb,var(--sys-blue) 7%,transparent),transparent 70%),var(--canvas)}.start__card{position:relative;z-index:1;width:100%;max-width:468px;background:var(--canvas-raised);border:var(--border-hairline);border-radius:var(--r-lg);box-shadow:var(--elev-peel);padding:var(--s-8) var(--s-6) var(--s-6)}.start__brand{display:inline-block;margin-bottom:var(--s-6)}.start__brand svg{display:block;width:auto;height:19px;color:var(--ink);opacity:.92}.start__eyebrow{display:block;margin:0 0 var(--s-2);font-family:var(--font-witness-mono);font-size:10px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-tertiary)}.start__title{margin:0 0 var(--s-2);font-family:var(--font-editorial);font-weight:var(--fw-semibold);font-size:clamp(25px,3.4vw,31px);line-height:1.16;letter-spacing:-.025em;color:var(--ink)}.start__sub{margin:0 0 var(--s-6);font-size:14px;line-height:1.6;color:var(--ink-secondary)}.start__label{display:block;margin:0 0 var(--s-2);font-family:var(--font-witness-mono);font-size:10px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-tertiary)}.start__input{width:100%;box-sizing:border-box;padding:13px 14px;margin:0 0 var(--s-5);font-family:var(--font-system-sans);font-size:16px;color:var(--ink);background:var(--canvas-raised);border:var(--border-hairline);border-radius:var(--r-md);box-shadow:var(--elev-rest);transition:border-color var(--dur-fast) var(--ease-out-quart),box-shadow var(--dur-fast) var(--ease-out-quart)}.start__input::placeholder{color:var(--ink-tertiary)}.start__input:focus-visible{outline:none;border-color:color-mix(in srgb,var(--sys-blue) 55%,transparent);box-shadow:var(--elev-rest),0 0 0 3px color-mix(in srgb,var(--sys-blue) 14%,transparent)}.start__input:disabled{background:var(--canvas-grouped);color:var(--ink-secondary);box-shadow:none}.start__input--code{font-family:var(--font-witness-mono);font-size:25px;letter-spacing:.32em;text-indent:.32em;text-align:center}.start__read{margin:calc(var(--s-5) * -1 + 2px) 0 var(--s-5);font-size:13px;color:var(--ink-secondary)}.start__field{border:0;padding:0;margin:0 0 var(--s-5)}.start__choices{display:flex;gap:var(--s-2)}.start__choice{flex:1;padding:12px;font-family:var(--font-system-sans);font-size:14px;color:var(--ink);background:var(--canvas-raised);border:var(--border-hairline);border-radius:var(--r-md);box-shadow:var(--elev-rest);cursor:pointer;transition:border-color var(--dur-fast) var(--ease-out-quart),box-shadow var(--dur-fast) var(--ease-out-quart)}.start__choice:hover:not(:disabled):not(.is-on){border-color:color-mix(in srgb,var(--sys-blue) 45%,transparent)}.start__choice:focus-visible{outline:none;border-color:color-mix(in srgb,var(--sys-blue) 55%,transparent);box-shadow:var(--elev-rest),0 0 0 3px color-mix(in srgb,var(--sys-blue) 14%,transparent)}.start__choice.is-on{background:var(--sys-blue);border-color:var(--sys-blue);color:var(--accent-ink)}.start__choice:disabled{cursor:default;opacity:.55}.start__hint{margin:var(--s-3) 0 0;font-size:12.5px;line-height:1.5;color:var(--ink-tertiary)}.start__google{display:block;text-align:center;padding:12px;margin:0 0 var(--s-5);font-family:var(--font-system-sans);font-size:14px;font-weight:500;color:var(--ink);text-decoration:none;background:var(--canvas-raised);border:var(--border-hairline);border-radius:var(--r-md);box-shadow:var(--elev-rest);transition:border-color var(--dur-fast) var(--ease-out-quart)}.start__google:hover{border-color:color-mix(in srgb,var(--sys-blue) 45%,transparent)}.start__go{width:100%;padding:14px;margin-top:var(--s-2);font-family:var(--font-system-sans);font-size:15px;font-weight:500;color:var(--accent-ink);background:var(--sys-blue);border:0;border-radius:var(--r-md);box-shadow:var(--elev-rest);cursor:pointer;transition:opacity var(--dur-fast) var(--ease-out-quart)}.start__go:hover:not(:disabled){opacity:.9}.start__go:focus-visible{outline:none;box-shadow:var(--elev-rest),0 0 0 3px color-mix(in srgb,var(--sys-blue) 24%,transparent)}.start__go:disabled{background:var(--canvas-grouped);color:var(--ink-tertiary);box-shadow:none;cursor:not-allowed}.start__resend{display:inline-block;margin:calc(var(--s-5) * -1 + 4px) 0 var(--s-4);padding:0;font-family:var(--font-system-sans);font-size:13px;color:var(--sys-blue);background:none;border:0;cursor:pointer}.start__resend:hover:not(:disabled){text-decoration:underline}.start__resend:disabled{color:var(--ink-tertiary);cursor:default;text-decoration:none}.start__error{margin:0 0 var(--s-4);font-size:13px;line-height:1.5;color:var(--sem-error)}.start__proven{margin:0 0 var(--s-5);padding:12px 14px;font-size:14px;line-height:1.5;color:var(--ink-secondary);background:var(--canvas-grouped);border:var(--border-hairline);border-radius:var(--r-md)}.start__proven strong{color:var(--ink);font-weight:500}.start__notyou{background:none;border:0;padding:0;font:inherit;color:var(--sys-blue);cursor:pointer}.start__notyou:hover{text-decoration:underline}.start__foot{margin:var(--s-5) 0 0;font-size:13px;text-align:center;color:var(--ink-tertiary)}.start__foot a{color:var(--sys-blue);text-decoration:none}.start__foot a:hover{text-decoration:underline}@media (max-width:520px){.start{padding:var(--s-5) var(--s-3);place-items:start center}.start__card{padding:var(--s-6) var(--s-5) var(--s-5)}}@media (prefers-reduced-motion:no-preference){.start__card{animation:start-in .24s ease-out both}@keyframes start-in{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}}.welcome--shell{position:relative;min-height:100dvh;display:grid;place-items:start center;padding:var(--s-8) var(--s-4);background:radial-gradient(60% 50% at 50% 0,color-mix(in srgb,var(--sys-blue) 7%,transparent),transparent 70%),var(--canvas)}.ob-shell{position:relative;z-index:1;width:100%;max-width:640px}.ob-shell__inner{display:flex;flex-direction:column;align-items:center;gap:var(--s-6)}.ob-shell__inner>.ob-skip,.ob-shell__inner>.ob-stage{width:100%}