:root{--bg:#fff;--bg-2:#f5f5f2;--ink:#0a0a0a;--muted:#6b6b68;--line:rgba(0,0,0,.14);--display:"Space Grotesk",system-ui,sans-serif;--mono:"IBM Plex Mono","SF Mono",monospace;--shell:min(960px,calc(100vw - 40px));--radius:1rem;--danger:#b42318;--success:#137333;--warning:#8a6200}*{box-sizing:border-box}body,html{background:var(--bg)}body{margin:0;color:var(--ink);font-family:var(--display);font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}button{color:inherit}img{display:block;max-width:100%}.shell{width:var(--shell);margin-inline:auto}.site-header{padding-block:1.25rem;border-bottom:1px solid var(--line)}.nav{display:flex;justify-content:space-between;gap:1rem}.brand,.nav{align-items:center}.brand{display:inline-flex}.brand-wordmark{font-weight:800;font-size:1rem;letter-spacing:.02em;text-transform:uppercase}.section-pad{padding-block:4rem}.eyebrow,.section-index{font-family:var(--mono);font-size:.72rem;letter-spacing:.07em;text-transform:uppercase;color:var(--muted);margin:0 0 .75rem}.eyebrow{display:block;margin:0 0 .2rem}h1{font-size:clamp(2rem,5vw,3.4rem);line-height:1.02;letter-spacing:-.04em;margin:0 0 1.25rem}h2{font-size:clamp(1.3rem,3vw,1.8rem);line-height:1.2;margin:0 0 .8rem}h3{margin:.3rem 0;font-size:1.1rem}p{color:var(--muted)}.lede{font-size:1.08rem;max-width:52ch}.button{display:inline-flex;border-radius:.85rem;transition:transform .12s ease,opacity .12s ease;border:0;cursor:pointer}.button:hover{opacity:.88}.button:active{transform:translateY(1px)}.button-primary{background:var(--ink)}.button-inner{display:inline-flex;align-items:center;gap:.5rem;padding:.82rem 1.15rem;color:var(--bg);font-weight:650}.button-wide{width:100%;justify-content:center}.button-link{color:var(--ink);border:0;border-bottom:1px solid var(--line);background:transparent;padding:0 0 2px;display:inline-flex;align-items:center;gap:.35rem;cursor:pointer}.button-link:hover{border-color:var(--ink)}.footer{border-top:1px solid var(--line);padding-block:1.5rem;margin-top:3rem}.footer-bottom{display:flex;justify-content:space-between;font-size:.8rem;color:var(--muted)}.card,.rules-box{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius);padding:1.4rem}.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));grid-gap:1rem;gap:1rem;margin-top:1.5rem}.rules-box{background:#fff;margin:2rem 0}.rules-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));grid-gap:.85rem 1.5rem;gap:.85rem 1.5rem;margin-top:1rem}.rule-item{display:flex;align-items:center;gap:.65rem;font-size:.94rem}.meta-row{display:flex;flex-wrap:wrap;gap:1.5rem;margin:1.5rem 0}.meta-label{font-family:var(--mono);font-size:.68rem;letter-spacing:.05em;color:var(--muted);display:block}.meta-value{font-weight:600}.badge{display:inline-flex;font-family:var(--mono);font-size:.68rem;letter-spacing:.05em;padding:.28rem .6rem;border-radius:999px;border:1px solid var(--line);color:var(--muted)}.badge-active{color:var(--ink);border-color:var(--ink)}.alert,.empty-state{border-radius:var(--radius);padding:1rem 1.2rem;margin:1.5rem 0}.alert-info,.empty-state{background:var(--bg-2);border:1px solid var(--line)}.alert-error{background:#fff4f2;border:1px solid rgba(180,35,24,.35);color:var(--danger)}.stats-table-wrap{overflow-x:auto;margin-bottom:2rem}.stats-table{width:100%;border-collapse:collapse;font-size:.9rem}.stats-table td,.stats-table th{padding:.6rem .75rem;border-bottom:1px solid var(--line);text-align:left}.stats-table td:first-child,.stats-table th:first-child{width:5.5rem}.stats-period-date{display:block;font-size:.7rem;margin-top:.1rem}.stats-table th{font-family:var(--mono);font-size:.7rem;letter-spacing:.05em;color:var(--muted);text-transform:uppercase}.stats-table td.stats-value{font-weight:600;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.stats-table td.stats-period{color:var(--muted);font-size:.8rem}.profile-field{margin-bottom:1.25rem}.profile-field-label{font-family:var(--mono);font-size:.7rem;letter-spacing:.05em;color:var(--muted);text-transform:uppercase;margin:0 0 .25rem}.profile-field-value{margin:0;font-weight:500}.form-field{display:flex;flex-direction:column;gap:.5rem;margin-bottom:1rem;max-width:360px}.form-field label{font-size:.85rem;color:var(--muted)}.form-field input{background:var(--bg-2);border:1px solid var(--line);border-radius:.6rem;padding:.75rem 1rem;color:var(--ink);font-family:inherit;font-size:1rem}.form-field input:focus{outline:2px solid var(--ink);outline-offset:1px}.form-field-checkbox{display:flex;align-items:center;gap:.5rem;margin-bottom:1.25rem}.form-field-checkbox input{width:1rem;height:1rem;accent-color:var(--ink)}.form-field-checkbox label{font-size:.85rem;color:var(--ink)}.start-shell{max-width:900px}.start-layout{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(260px,.75fr);grid-gap:1rem;gap:1rem;margin-top:2.5rem}.start-card{border:1px solid var(--line);border-radius:1.25rem;padding:1.5rem}.start-summary{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:.75rem;gap:.75rem;padding-bottom:1.25rem;border-bottom:1px solid var(--line)}.start-summary strong{display:block;font-size:.9rem}.start-choice{border:0;padding:1.35rem 0;margin:0;display:grid;grid-gap:.7rem;gap:.7rem}.start-choice legend{font-weight:700;margin-bottom:.7rem}.start-choice label{display:flex;align-items:flex-start;gap:.7rem;border:1px solid var(--line);border-radius:.85rem;padding:.9rem;cursor:pointer}.start-choice input{margin-top:.28rem;accent-color:var(--ink)}.start-choice small,.start-choice strong{display:block}.start-choice small,.timezone-field small{color:var(--muted);margin-top:.2rem}.timezone-field{display:grid;grid-gap:.4rem;gap:.4rem;margin-bottom:1.2rem;font-size:.88rem}.timezone-field select{background:var(--bg);color:var(--ink);-webkit-appearance:auto;-moz-appearance:auto;appearance:auto}.timezone-detected,.timezone-field select{border:1px solid var(--line);border-radius:.75rem;padding:.75rem}.timezone-detected{margin:0;background:var(--bg-2);font-weight:500}.timezone-field small .button-link{margin-left:.3rem;font-size:inherit}.start-rules{margin:0;align-self:start}.start-rules .rule-item{padding:.48rem 0;border-bottom:1px solid rgba(0,0,0,.06)}.challenge-dashboard{padding:2.25rem 0 4rem}.challenge-shell{max-width:960px}.challenge-hero{display:flex;justify-content:space-between;align-items:flex-start;gap:1rem;margin-bottom:2rem}.challenge-title-row{display:flex;align-items:center;gap:.8rem;flex-wrap:wrap}.challenge-title-row h1{margin-bottom:.25rem}.challenge-subline{margin:.3rem 0}.strike-indicator{font-family:var(--mono);font-size:.72rem;letter-spacing:.05em;text-transform:uppercase;color:var(--muted);margin:.3rem 0 0}.strike-level-1{color:#8a6d1f}.strike-level-2{color:#b45f18}.strike-level-3{color:var(--danger)}.strike-log{list-style:none;margin:1rem 0;padding:0;display:grid;grid-gap:.4rem;gap:.4rem;font-size:.85rem;color:var(--muted)}.today-panel{border:1px solid var(--line);border-radius:1.25rem;overflow:hidden}.today-heading-row{display:flex;justify-content:space-between;align-items:flex-end;padding:1.25rem 1.25rem .9rem}.today-heading-row h2{margin:0}.save-status{font-family:var(--mono);font-size:.68rem;color:var(--muted);min-height:1rem}.today-heading-actions{display:flex;flex-direction:column;align-items:flex-end;gap:.35rem}.today-complete-all{font-size:clamp(1.3rem,3vw,1.8rem);font-weight:700;white-space:nowrap}.today-progress{height:3px;background:#e7e7e2}.today-progress span{display:block;height:100%;background:var(--ink);transition:width .2s ease}.habit-list{display:grid}.habit-row{padding:1.15rem 1.25rem;border-top:1px solid var(--line);transition:background .15s ease}.habit-row:first-child{border-top:0}.habit-complete{background:#fafaf7}.habit-topline{justify-content:space-between;gap:1rem}.habit-name,.habit-topline{display:flex;align-items:center}.habit-name{gap:.85rem}.habit-icon{font-size:1.25rem;width:1.5rem;text-align:center}.habit-name span,.habit-name strong{display:block}.habit-name span{font-size:.84rem;color:var(--muted);margin-top:.12rem}.habit-state{width:1.7rem;height:1.7rem;border:1px solid var(--line);border-radius:50%;display:grid;place-items:center;font-weight:800;background:#fff;cursor:pointer;padding:0;color:inherit}.habit-state:hover{border-color:var(--ink)}.habit-complete .habit-state{background:var(--ink);color:#fff;border-color:var(--ink)}.habit-controls{display:flex;align-items:center;flex-wrap:wrap;gap:.45rem;margin:1rem 0 0 2.35rem}.habit-controls>button,.manual-control button{border:1px solid var(--line);background:#fff;border-radius:.7rem;padding:.54rem .72rem;cursor:pointer;min-height:40px}.habit-controls>button:hover,.manual-control button:hover{border-color:var(--ink)}.habit-controls .control-active{background:var(--ink);color:#fff;border-color:var(--ink)}.habit-controls .control-danger{border-color:rgba(180,35,24,.5);color:var(--danger)}.habit-controls .control-subtle{color:var(--muted);border-color:transparent}.manual-control{display:flex}.manual-control input{width:74px;border:1px solid var(--line);border-right:0;border-radius:.7rem 0 0 .7rem;padding:.5rem}.manual-control button{border-radius:0 .7rem .7rem 0}.day-complete-banner{margin:0 1.25rem 1.25rem;padding:.85rem 1rem;background:var(--ink);color:#fff;border-radius:.8rem;font-weight:700}.progress-section{margin-top:2.5rem}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:1rem}.section-heading h2{margin:0}.progress-number{font-size:1.5rem}.challenge-grid{display:grid;grid-template-columns:repeat(10,1fr);grid-gap:.45rem;gap:.45rem;margin-top:1rem}.grid-day{aspect-ratio:1;border:1px solid var(--line);border-radius:.6rem;background:#fff;display:grid;place-items:center;position:relative;font-size:.78rem;cursor:pointer}.grid-day:disabled{cursor:default}.grid-day b{position:absolute;right:4px;bottom:1px;font-size:.58rem}.grid-done{background:var(--ink);color:#fff;border-color:var(--ink)}.grid-current{border:2px solid var(--ink)}.grid-missed{background:#f0eee7;border-color:#7d7660;color:#7d7660}.grid-failed{border-color:var(--danger);color:var(--danger)}.grid-future{color:#aaa}.history-popover{margin-top:.9rem;border:1px solid var(--line);border-radius:.9rem;padding:1rem}.history-popover-head{display:flex;justify-content:space-between}.history-popover-head button{border:0;background:transparent;font-size:1.25rem;cursor:pointer}.history-values{display:grid;grid-gap:.35rem;gap:.35rem}.history-values div{display:flex;justify-content:space-between;gap:1rem;padding:.35rem 0;border-top:1px solid rgba(0,0,0,.06);font-size:.84rem}.history-values span{color:var(--muted)}.history-popover blockquote{margin:.8rem 0 0;padding-left:.8rem;border-left:2px solid var(--line);color:var(--muted)}.stats-section{display:grid;grid-template-columns:repeat(2,1fr);grid-gap:.7rem;gap:.7rem;margin-top:1rem}.stat-card{border:1px solid var(--line);border-radius:.9rem;padding:1rem}.stat-card small,.stat-card span{display:block;color:var(--muted);font-size:.74rem}.stat-card strong{display:block;font-size:1.75rem;line-height:1.1;margin:.3rem 0}.milestone-banner,.weekly-summary{margin-top:1rem;border:1px solid var(--line);border-radius:.9rem;padding:1rem}.milestone-banner{display:flex;justify-content:space-between;background:var(--bg-2)}.milestone-banner span{font-family:var(--mono);font-size:.7rem;color:var(--muted)}.weekly-summary h3{font-size:1.15rem}.utility-grid{display:grid;grid-template-columns:1fr 1fr;grid-gap:1rem;gap:1rem;margin-top:2.5rem}.utility-card{border:1px solid var(--line);border-radius:1rem;padding:1.2rem}.utility-card textarea{width:100%;min-height:90px;resize:vertical;border:1px solid var(--line);border-radius:.75rem;padding:.75rem;margin-bottom:.7rem}.toggle-row{display:flex;gap:.6rem;align-items:center;padding:.4rem 0}.toggle-row input{accent-color:var(--ink)}.utility-card summary{cursor:pointer;margin:.6rem 0}.utility-card small{display:block;color:var(--muted);margin-top:.7rem}.completion-panel,.failed-panel,.scheduled-panel{border:1px solid var(--line);border-radius:1.1rem;padding:1.4rem;margin-bottom:2rem}.failed-panel{border-color:rgba(180,35,24,.35)}.completion-panel{background:var(--ink);color:#fff}.completion-panel .section-index,.completion-panel p{color:#cfcfc9}.completion-stats{display:grid;grid-template-columns:repeat(4,1fr);grid-gap:.7rem;gap:.7rem;margin:1.2rem 0}.completion-stats span,.completion-stats strong{display:block}.completion-stats span{font-size:.7rem;color:#bbb}.completion-panel .button-link,.completion-stats .button-link{color:#fff;border-color:#777}.hub-shell{max-width:900px}.run-section{margin:2.5rem 0}.run-list{display:grid;grid-gap:.75rem;gap:.75rem;margin-top:1rem}.run-card{border:1px solid var(--line);border-radius:1rem;padding:1.15rem;display:flex;justify-content:space-between;gap:1rem;transition:border-color .15s ease}.run-card:hover{border-color:var(--ink)}.run-card-primary{background:var(--ink);color:#fff}.run-card-primary .eyebrow,.run-card-primary .run-card-stats span,.run-card-primary p{color:#bbb}.run-card p{margin:.15rem 0}.run-card-stats{display:grid;text-align:right;align-content:center}.run-card-stats strong{font-size:1.3rem}.run-card-stats span{font-size:.75rem;color:var(--muted)}.status-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:#888}.status-active,.status-completed{background:#42a55b}.status-failed{background:#b42318}@media(max-width:760px){:root{--shell:min(100% - 28px,960px)}.section-pad{padding-block:2.7rem}.start-layout,.start-summary,.utility-grid{grid-template-columns:1fr}.challenge-hero{display:block}.challenge-hero>.button-link{margin-top:.6rem}.habit-row{padding:1rem}.habit-controls{margin-left:0}.challenge-grid{grid-template-columns:repeat(5,1fr);gap:.5rem}.completion-stats,.stats-section{grid-template-columns:repeat(2,1fr)}.run-card{display:block}.run-card-stats{text-align:left;margin-top:.7rem}.today-heading-row{align-items:flex-start}.footer-bottom{display:block}.landing-tight.section-pad{padding-top:1rem}.landing-tight h1{margin-bottom:.5rem;font-size:clamp(1.6rem,7vw,3.4rem)}.landing-tight .lede{margin:0 0 .6rem}.landing-tight .alert{margin:.6rem 0;padding:.7rem .9rem;font-size:.88rem}.landing-tight .card-grid{margin-top:.6rem}.landing-tight .card{padding:1rem}.landing-tight .meta-row{margin:.75rem 0;gap:1rem}}@media(max-width:390px){.challenge-grid{gap:.35rem}.habit-controls>button,.manual-control button{padding:.5rem .6rem}.habit-name{gap:.55rem}.habit-icon{width:1.25rem}.stat-card strong{font-size:1.45rem}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}:focus-visible{outline:2px solid var(--ink);outline-offset:2px}