.start-challenge{display:grid;width:min(1040px,calc(100% - 40px));grid-template-columns:minmax(0,1.2fr) minmax(240px,.8fr);gap:60px;align-items:center;margin:110px auto;padding:54px 58px;border-radius:20px;color:#fff;background:linear-gradient(135deg,#b93d24,#e85c3a);box-shadow:0 22px 55px rgba(185,61,36,.2)}
.start-challenge>div>span{font:900 .7rem/1.2 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.15em;opacity:.75}.start-challenge h2{margin:11px 0 15px;font-size:clamp(2rem,3.7vw,3.4rem);line-height:1.22;letter-spacing:-.05em}.start-challenge p{max-width:620px;margin:0;color:rgba(255,255,255,.82);font-size:.92rem;line-height:1.85}.start-challenge button{display:flex;gap:22px;align-items:center;justify-content:space-between;min-height:62px;padding:16px 20px;border:0;border-radius:10px;color:#b93d24;background:#fff;font-size:.88rem;font-weight:900;box-shadow:0 12px 30px rgba(90,25,12,.2)}
.challenge-dialog{width:min(560px,calc(100% - 28px));padding:0;border:0;border-radius:20px;color:#202229;background:#fff;box-shadow:0 30px 100px rgba(0,0,0,.35)}.challenge-dialog::backdrop{background:rgba(15,17,23,.7);backdrop-filter:blur(4px)}.challenge-dialog-inner{position:relative;padding:38px}.challenge-dialog-close{position:absolute;top:14px;right:14px;display:grid;width:36px;height:36px;place-items:center;border:0;border-radius:50%;background:#f1f2f4;font-size:1.25rem}.challenge-dialog .dialog-kicker{margin:0;color:#e85c3a;font:900 .7rem/1.2 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.14em}.challenge-dialog h2{margin:11px 40px 12px 0;font-size:2rem;line-height:1.3;letter-spacing:-.045em}.challenge-dialog .dialog-lead{margin:0;color:#686f7e;font-size:.88rem;line-height:1.75}.challenge-dialog label{display:block;margin-top:25px;font-size:.82rem;font-weight:900}.challenge-dialog input{display:block;width:100%;margin-top:8px;padding:14px 15px;border:1px solid #d8dbe3;border-radius:9px;background:#fafafa;font:inherit}.challenge-dialog small{display:block;margin-top:8px;color:#858b97;font-size:.7rem}.challenge-dialog .challenge-existing{margin:18px 0 0;padding:12px 14px;border-radius:8px;color:#6b5520;background:#fff4cc;font-size:.73rem}.challenge-dialog-submit{width:100%;margin-top:24px;padding:15px;border:0;border-radius:9px;color:#fff;background:#e85c3a;font-weight:900}.challenge-privacy{margin:11px 0 0;color:#888e9a;font-size:.68rem;text-align:center}
.active-challenge{display:grid;grid-template-columns:minmax(270px,.75fr) minmax(0,1.25fr);gap:48px;margin:42px 0 58px;padding:42px;border:1px solid #efc2b6;border-radius:20px;background:linear-gradient(135deg,#fff 0%,#fff7f4 100%);box-shadow:0 15px 40px rgba(32,34,41,.07)}.active-challenge-copy .section-kicker{margin-bottom:9px}.active-challenge-copy>span{display:inline-block;padding:5px 9px;border-radius:99px;color:#b93d24;background:#ffe4dc;font-size:.7rem;font-weight:900}.active-challenge-copy h2{margin:15px 0 11px;font-size:clamp(1.8rem,3vw,2.8rem);line-height:1.25;letter-spacing:-.05em}.active-challenge-copy>p:last-child{margin:0;color:#737986;font-size:.75rem;line-height:1.6}.active-challenge-track{align-self:center}.challenge-action{padding:17px 19px;border-left:4px solid #e85c3a;border-radius:0 10px 10px 0;background:#fff}.challenge-action span{display:block;color:#7e8490;font-size:.7rem}.challenge-action strong{display:block;margin-top:3px;font-size:1.08rem}.challenge-days{display:grid;grid-template-columns:repeat(7,1fr);gap:8px;margin:20px 0}.challenge-day{display:grid;aspect-ratio:1;place-items:center;border:1px solid #dedfe5;border-radius:50%;color:#858a95;background:#fff;font-size:.72rem;font-weight:900}.challenge-day.is-done{border-color:#e85c3a;color:#fff;background:#e85c3a}.challenge-day.is-today{box-shadow:0 0 0 3px rgba(232,92,58,.14)}.challenge-day:disabled{cursor:default;opacity:.48}.challenge-controls{display:flex;gap:11px;align-items:center;flex-wrap:wrap}.challenge-controls button,.challenge-controls a{padding:10px 13px;border-radius:8px;font-size:.72rem;font-weight:900}.challenge-controls>button:first-child{border:0;color:#fff;background:#202229}.challenge-controls>a{border:1px solid #d9dbe1;background:#fff}.challenge-controls .challenge-stop{margin-left:auto;padding-right:0;border:0;color:#8c919b;background:transparent;text-decoration:underline;text-underline-offset:3px}
@media(max-width:760px){.start-challenge{grid-template-columns:1fr;gap:28px;margin:75px auto;padding:38px 25px}.active-challenge{grid-template-columns:1fr;gap:25px;padding:28px 22px}.challenge-dialog-inner{padding:32px 22px}.challenge-dialog h2{font-size:1.65rem}}
@media(max-width:460px){.challenge-days{gap:5px}.challenge-day{font-size:.64rem}.challenge-controls{align-items:stretch;flex-direction:column}.challenge-controls button,.challenge-controls a{width:100%;text-align:center}.challenge-controls .challenge-stop{margin-left:0}.start-challenge button{width:100%}}
@media(prefers-reduced-motion:reduce){.start-challenge button{transition:none}}

/* Behavioral design: specific cues, adjustable plans, and lapse recovery. */
.challenge-cues{margin:24px 0 0;padding:0;border:0}.challenge-cues legend{font-size:.82rem;font-weight:900}.challenge-cues legend small{display:inline;color:#858b97;font-weight:500}.challenge-cues>div{display:flex;gap:7px;flex-wrap:wrap;margin-top:10px}.challenge-cues label{margin:0}.challenge-cues input{position:absolute;width:1px;height:1px;opacity:0}.challenge-cues span{display:block;padding:8px 11px;border:1px solid #d8dbe3;border-radius:99px;color:#626875;background:#fff;font-size:.72rem;cursor:pointer}.challenge-cues input:checked+span{border-color:#e85c3a;color:#9f351f;background:#fff1ec}.challenge-cues input:focus-visible+span{outline:3px solid rgba(232,92,58,.22);outline-offset:2px}
.challenge-plan{display:grid;grid-template-columns:1fr 1fr;gap:9px}.challenge-cue{padding:17px 19px;border-radius:10px;background:#fff}.challenge-cue span{display:block;color:#7e8490;font-size:.7rem}.challenge-cue strong{display:block;margin-top:3px;font-size:.92rem}.challenge-cue.is-unspecified strong{color:#7e8490;font-weight:700}.challenge-recovery{margin:13px 0 0;color:#676d79;font-size:.75rem;line-height:1.65}.challenge-feedback{min-height:1.5em;margin:10px 0 0;color:#a43b24;font-size:.74rem;font-weight:800}.challenge-controls #challengeEdit{border:1px solid #d9dbe1;color:#363b47;background:#fff}
@media(max-width:760px){.challenge-plan{grid-template-columns:1fr}}