/* The Astera questionnaire: a white sheet on the night-to-daylight gradient. System fonts only, so nothing loads from elsewhere. */
:root{--top:#060a14;--mid:#1a2d4f;--low:#c9d0d8;--sheet:#fbfbfc;--ink:#14171c;--mute:#646a73;--rule:#dfe2e6;--btn:#16233f;--btn-ink:#fff;--chip:#fff;--err:#b3261e;--focus:#4a78c2;color-scheme:light}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{min-height:100%}
body{margin:0;min-height:100vh;display:flex;flex-direction:column;align-items:center;gap:26px;padding:34px max(14px,env(safe-area-inset-right,0px)) 26px max(14px,env(safe-area-inset-left,0px));background:linear-gradient(180deg,var(--top) 0,var(--top) 160px,var(--mid) 420px,var(--low) 100%) no-repeat var(--low);font:15px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink)}
.brand{display:flex;align-items:center;gap:9px;color:#fff;font-weight:600;font-size:17px;letter-spacing:.01em}
.brand img{border-radius:7px;display:block}
.sheet{width:100%;max-width:560px;background:var(--sheet);border-radius:24px;padding:32px 26px}
.sheet.small{margin-top:60px;display:flex;flex-direction:column;gap:14px}
form{display:flex;flex-direction:column;gap:22px}
h1{font-size:19px;font-weight:600;margin:0;line-height:1.3;text-wrap:balance}
.sub{margin:6px 0 0;color:var(--mute);font-size:16px}
.field{display:flex;flex-direction:column;gap:2px;min-width:0}
label{font-size:13px;color:var(--mute)}
input[type=text],input[type=email]{width:100%;border:0;border-bottom:1px solid var(--rule);background:transparent;padding:8px 0;font:16px/1.4 inherit;font-family:inherit;color:var(--ink);border-radius:0}
input:focus{outline:0;border-bottom:2px solid var(--focus);padding-bottom:7px}
.two{display:grid;grid-template-columns:1fr 1fr;gap:14px}
fieldset{border:0;margin:0;padding:0;display:flex;flex-direction:column;gap:9px;min-width:0}
legend{font-weight:600;font-size:15px;padding:0;margin-bottom:8px}
.hint{margin:-12px 0 0;font-size:12.5px;color:var(--mute)}
.chips{display:flex;flex-wrap:wrap;gap:7px}
.chips button{appearance:none;background:var(--chip);border:1px solid var(--rule);color:var(--ink);border-radius:999px;padding:8px 13px;font:14px/1.2 inherit;font-family:inherit;cursor:pointer;min-height:38px;touch-action:manipulation}
.chips button[aria-pressed=true]{background:var(--btn);border-color:var(--btn);color:var(--btn-ink)}
.chips button:focus-visible,.go:focus-visible,a:focus-visible{outline:2px solid var(--focus);outline-offset:2px}
.go{appearance:none;border:0;width:100%;background:var(--btn);color:var(--btn-ink);border-radius:999px;padding:14px;font-size:15px;font-weight:600;font-family:inherit;cursor:pointer;min-height:48px}
.go[disabled]{opacity:.6;cursor:default}
.err{margin:4px 0 0;font-size:13px;color:var(--err)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
a{color:inherit}
.legal{margin-top:auto;max-width:560px;text-align:center;font-size:12px;line-height:1.5;color:#3a4048}
@media (prefers-reduced-motion:no-preference){.chips button{transition:background-color .12s,color .12s}}
@media (max-width:420px){.sheet{padding:26px 20px;border-radius:20px}}