@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Manrope:wght@400;600;700;800&display=swap";
:root{--color-canvas:#f7f8f2;--color-surface:#fff;--color-ink:#172e25;--color-muted:#59675f;--color-border:#dce2d8;--color-primary:#245c42;--color-primary-hover:#194b34;--color-primary-active:#123a29;--color-accent:#dceaa5;--color-subtle:#eaf0e5;--color-success:#245c42;--color-success-soft:#e7f2e9;--color-warning:#785616;--color-warning-soft:#fff2d3;--color-error:#a03b3b;--color-error-soft:#fce9e7;--color-info:#285973;--color-info-soft:#e6f0f6;--color-disabled:#e2e6df;--color-disabled-text:#65715f;--color-focus:#316cbe;--spacing-0:0px;--spacing-4:4px;--spacing-8:8px;--spacing-12:12px;--spacing-16:16px;--spacing-20:20px;--spacing-24:24px;--spacing-32:32px;--spacing-40:40px;--spacing-48:48px;--spacing-64:64px;--spacing-80:80px;--spacing-96:96px;--breakpoint-sm:640px;--breakpoint-md:768px;--breakpoint-lg:1024px;--breakpoint-xl:1280px;--container-mobile:390px;--container-form:640px;--container-content:1120px;--container-desktop:1440px;--font-display:"Manrope", sans-serif;--font-body:"Inter", sans-serif;--font-weight-400:400;--font-weight-500:500;--font-weight-600:600;--font-weight-700:700;--font-weight-800:800;--text-14:14px;--text-16:16px;--text-20:20px;--text-28:28px;--text-40:40px;--text-56:56px;--text-80:80px;--leading-20:20px;--leading-24:24px;--leading-28:28px;--leading-36:36px;--leading-48:48px;--leading-64:64px;--leading-88:88px;--tracking-tight:-.045em;--tracking-heading:-.03em;--tracking-normal:0em;--tracking-label:.08em;--radius-4:4px;--radius-8:8px;--radius-12:12px;--radius-16:16px;--radius-24:24px;--radius-999:999px;--opacity-muted:60%;--opacity-full:100%}
*{box-sizing:border-box}body{color:var(--color-ink);font:1rem/1.5rem var(--font-body);background:#e8ebe3;margin:0}button,input,select,textarea{font:inherit}button,a,input,select,textarea{outline-offset:4px}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--color-focus)}button{cursor:pointer}a{color:inherit;text-decoration:none}button:disabled{cursor:not-allowed}svg{flex-shrink:0;display:block}h1,h2,h3,p{margin:0}h1,h2,h3{font-family:var(--font-display)}h1{letter-spacing:-.045em;font-size:3.5rem;font-weight:800;line-height:4rem}h2{letter-spacing:-.03em;font-size:1.75rem;font-weight:700;line-height:2.25rem}h3{letter-spacing:-.02em;font-size:1.25rem;font-weight:700;line-height:1.75rem}p{line-height:1.5rem}small,.small{font-size:.875rem;line-height:1.25rem}.muted{color:var(--color-muted)}.eyebrow{letter-spacing:.08em;text-transform:uppercase;color:var(--color-primary);font-size:.875rem;line-height:1.25rem}.sr-only{clip:rect(0,0,0,0);width:1px;height:1px;position:absolute;overflow:hidden}.studio{z-index:20;color:#fff;background:#172e25;border-bottom:1px solid #385044;align-items:center;gap:24px;min-height:64px;padding:12px 24px;display:flex;position:sticky;top:0}.studio-brand{letter-spacing:.06em;white-space:nowrap;gap:16px;font-size:.875rem;font-weight:700;display:flex}.studio-brand span{color:#dce2d8;font-size:.75rem;font-weight:400}.studio select{color:#fff;background:#245c42;border:1px solid #568165;border-radius:6px;max-width:270px;height:40px;padding:6px 12px}.device-controls{border:1px solid #568165;border-radius:6px;display:flex;overflow:hidden}.device-controls button{color:#dce2d8;background:0 0;border:0;height:38px;padding:0 16px;font-size:.875rem}.device-controls button.selected{background:var(--color-accent);color:var(--color-ink);font-weight:600}.paper-link{white-space:nowrap;margin-left:auto;font-size:.875rem}.stage{justify-content:center;align-items:start;min-height:calc(100vh - 64px);padding:24px;display:flex}.app{background:var(--color-canvas);border-radius:12px;width:1440px;max-width:100%;min-height:900px;overflow:hidden;box-shadow:0 8px 40px #172e250c}.stage.is-mobile .app{border:7px solid #172e25;border-radius:28px;width:390px;max-width:100%;min-height:844px;position:relative}.app-nav{border-bottom:1px solid var(--color-border);justify-content:space-between;align-items:center;gap:32px;height:96px;padding:24px 64px;display:flex}.brand{font-family:var(--font-display);letter-spacing:-.05em;align-items:center;gap:12px;font-size:2rem;font-weight:800;line-height:2.5rem;display:flex}.brand svg{width:42px;height:42px}.nav-links{align-items:center;gap:32px;display:flex}.nav-links a{color:var(--color-muted);white-space:nowrap;padding:10px 0;font-size:1rem}.nav-links a.active{color:var(--color-primary);font-weight:600}.nav-actions{align-items:center;gap:16px;display:flex}.avatar{background:var(--color-accent);border:none;border-radius:999px;flex-shrink:0;justify-content:center;align-items:center;width:44px;height:44px;font-size:.875rem;font-weight:600;display:flex}.avatar.secondary{background:#dce9ed}.avatar.tertiary{background:#ebdace}.main{flex-direction:column;gap:32px;padding:40px 64px 64px;display:flex}.page-heading{flex-direction:column;gap:12px;display:flex}.page-heading .subtitle{color:var(--color-muted);font-size:1.25rem;line-height:1.75rem}.breadcrumb{color:var(--color-muted);font-size:.875rem}.row{align-items:center;gap:24px;display:flex}.between{justify-content:space-between}.stack{flex-direction:column;gap:24px;display:flex}.columns{align-items:start;gap:48px;display:flex}.wide{flex:1;min-width:0}.rail{flex-shrink:0;width:360px}.panel{background:var(--color-surface);border:1px solid var(--color-border);border-radius:16px;flex-direction:column;gap:24px;padding:32px;display:flex}.field-notes{background:var(--color-subtle);border:none}.field-notes>section{border-top:1px solid var(--color-border);flex-direction:column;gap:8px;padding-top:16px;display:flex}.note{color:var(--color-muted);font-size:.875rem;line-height:1.25rem}.divider{background:var(--color-border);width:100%;height:1px}.btn{background:var(--color-primary);height:48px;color:var(--color-surface);white-space:nowrap;border:1px solid #0000;border-radius:8px;justify-content:center;align-items:center;gap:10px;padding:0 24px;font-size:1rem;font-weight:600;transition:background .16s,transform .12s;display:inline-flex}.btn:hover{background:var(--color-primary-hover)}.btn:active{background:var(--color-primary-active);transform:translateY(1px)}.btn.secondary{border-color:var(--color-border);color:var(--color-ink);background:0 0}.btn.secondary:hover{background:var(--color-subtle)}.btn.ghost{color:var(--color-primary);background:0 0;padding:0 8px}.btn.accent{background:var(--color-accent);color:var(--color-ink)}.btn.danger{background:var(--color-error-soft);color:var(--color-error)}.btn:disabled{background:var(--color-disabled);color:var(--color-disabled-text);transform:none}.btn.compact{height:44px;padding:0 20px;font-size:.875rem}.btn.full{width:100%}.icon-button{border:1px solid var(--color-border);width:44px;height:44px;color:var(--color-ink);background:0 0;border-radius:8px;justify-content:center;align-items:center;display:flex}.feature{background:var(--color-ink);color:#fff;border-radius:24px;justify-content:space-between;align-items:center;gap:32px;height:320px;padding:40px 48px;display:flex;overflow:hidden}.feature h1{max-width:660px;font-size:3.5rem;line-height:4rem}.feature .eyebrow{color:var(--color-accent)}.feature-copy{flex-direction:column;align-items:start;gap:16px;display:flex}.feature-copy p{color:#eaf0e5}.feature-art{width:420px;max-width:40%;height:260px}.section-heading{justify-content:space-between;align-items:end;gap:24px;display:flex}.section-heading h2{font-size:2.5rem;font-weight:800;line-height:3rem}.section-heading>div{flex-direction:column;gap:8px;display:flex}.filter-bar{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.filter{height:44px;color:var(--color-ink);border:1px solid var(--color-border);white-space:nowrap;background:#fff;border-radius:999px;padding:0 20px;font-size:.875rem;font-weight:600}.filter.active{background:var(--color-primary);border-color:var(--color-primary);color:#fff}.search{border:1px solid var(--color-border);background:#fff;border-radius:8px;align-items:center;gap:10px;width:250px;height:44px;margin-left:auto;padding:0 14px;display:flex}.search input{background:0 0;border:0;outline:0;width:100%;min-width:0;font-size:.875rem}.cards{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;display:grid}.challenge-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:16px;flex-direction:column;transition:border-color .16s,transform .16s;display:flex;overflow:hidden}.challenge-card:hover{border-color:var(--color-primary);transform:translateY(-2px)}.category-art{background:var(--color-subtle);justify-content:center;align-items:center;height:148px;display:flex}.category-art.planting{background:var(--color-accent)}.category-art.recycling{background:#dce9ed}.category-art svg{width:180px;height:130px}.card-info{flex-direction:column;flex:1;gap:12px;padding:24px;display:flex}.card-info h2{font-size:1.75rem;line-height:2.25rem}.card-info .category{color:var(--color-primary);font-size:.875rem}.card-footer{border-top:1px solid var(--color-border);justify-content:space-between;gap:12px;padding-top:16px;font-size:.875rem;display:flex}.card-footer b{font-weight:600}.mission-art{background:var(--color-subtle);border-radius:16px;align-items:center;gap:40px;height:220px;padding:32px;display:flex}.mission-art svg{width:250px;height:180px}.mission-art h2{color:var(--color-primary);font-size:2.5rem;line-height:3rem}.mission-step{border-top:1px solid var(--color-border);gap:20px;padding-top:16px;display:flex}.mission-step>span{width:40px;color:var(--color-primary);flex-shrink:0;font-size:.875rem}.mission-step>div{flex-direction:column;gap:4px;display:flex}.reward{font-family:var(--font-display);letter-spacing:-.045em;font-size:3.5rem;font-weight:800;line-height:4rem}.metric-row{justify-content:space-between;align-items:center;gap:24px;display:flex}.metric-row b{font-weight:600}.label{font-size:1rem;font-weight:600;line-height:1.5rem;display:block}.field{flex-direction:column;gap:8px;display:flex}.field input,.field select,.field textarea{border:1px solid var(--color-border);background:var(--color-surface);width:100%;min-height:52px;color:var(--color-ink);border-radius:8px;padding:14px 16px;font-size:1rem;line-height:1.5rem}.field textarea{resize:vertical;min-height:130px}.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--color-focus)}.field.invalid input,.field.invalid textarea{border-color:var(--color-error)}.field.invalid .helper{color:var(--color-error)}.helper{color:var(--color-muted);font-size:.875rem;line-height:1.25rem}.form-two{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;display:grid}.form-actions{border-top:1px solid var(--color-border);justify-content:space-between;align-items:center;gap:24px;padding-top:24px;display:flex}.check-row{cursor:pointer;align-items:center;gap:12px;min-height:44px;display:flex}.check-row input{width:20px;height:20px;accent-color:var(--color-primary);flex-shrink:0}.upload-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;display:grid}.upload-slot{flex-direction:column;gap:12px;display:flex}.upload-area{border:1px dashed var(--color-muted);cursor:pointer;height:224px;color:var(--color-primary);background:#fff;border-radius:16px;flex-direction:column;justify-content:center;align-items:center;gap:16px;display:flex;position:relative;overflow:hidden}.upload-area:hover{background:var(--color-subtle)}.upload-area input{opacity:0;cursor:pointer;width:100%;height:100%;position:absolute;inset:0}.upload-area img{object-fit:cover;width:100%;height:100%;position:absolute;inset:0}.upload-area .uploaded-label{z-index:1;background:#fff;border-radius:4px;padding:4px 12px;font-size:.875rem;position:absolute;bottom:12px}.upload-area:focus-within{outline:2px solid var(--color-focus);outline-offset:4px}.photo-error{color:var(--color-error);font-size:.875rem;line-height:1.25rem}.status{background:var(--color-success-soft);color:var(--color-success);border-radius:999px;align-self:start;align-items:center;gap:8px;padding:8px 12px;font-size:.875rem;font-weight:600;display:inline-flex}.status.warning{background:var(--color-warning-soft);color:var(--color-warning)}.status.error{background:var(--color-error-soft);color:var(--color-error)}.status.info{background:var(--color-info-soft);color:var(--color-info)}.assessment-panel{background:var(--color-subtle);border-radius:24px;flex-direction:column;gap:24px;padding:40px;display:flex}.assessment-panel .reward{font-size:5rem;line-height:5.5rem}.observation{border-top:1px solid var(--color-border);align-items:start;gap:12px;padding-top:20px;display:flex}.observation svg{color:var(--color-primary)}.observation>div{flex-direction:column;gap:4px;display:flex}.sample-evidence{background:#e2ebd8;border-radius:12px;justify-content:center;align-items:center;height:180px;display:flex;position:relative;overflow:hidden}.sample-evidence svg{width:240px;height:150px}.sample-evidence .caption{background:#fff;border-radius:4px;padding:4px 10px;font-size:.875rem;position:absolute;bottom:12px;left:12px}.badge{color:var(--color-primary);background:var(--color-subtle);border-radius:999px;align-items:center;gap:8px;padding:6px 12px;font-size:.875rem;font-weight:600;display:inline-flex}.assessment-tabs{flex-wrap:wrap;gap:8px;display:flex}.feedback-note{background:var(--color-surface);border:1px solid var(--color-border);color:var(--color-muted);border-radius:8px;padding:16px;font-size:.875rem;line-height:1.25rem}.feed{flex-direction:column;gap:24px;display:flex}.post{border:1px solid var(--color-border);background:#fff;border-radius:16px;overflow:hidden}.post-header{align-items:center;gap:12px;padding:24px;display:flex}.post-author{flex:1;min-width:0}.post-author strong{font-weight:600;display:block}.post-copy{padding:0 24px 24px}.post-visual{background:var(--color-subtle);justify-content:center;align-items:center;gap:48px;height:260px;display:flex}.post-visual svg{width:180px;height:160px}.post-visual h2{color:var(--color-primary);font-size:2.5rem;line-height:3rem}.post-footer{border-top:1px solid var(--color-border);align-items:center;gap:20px;padding:16px 24px;display:flex}.post-footer button{min-height:44px;color:var(--color-muted);background:0 0;border:0;align-items:center;gap:8px;padding:0;font-size:.875rem;display:flex}.post-footer button.liked{color:var(--color-primary);font-weight:600}.post-footer .status{margin-left:auto}.community-member{border-top:1px solid var(--color-border);align-items:center;gap:12px;padding-top:16px;display:flex}.community-member>div:nth-child(2){flex:1}.progress-profile{align-items:center;gap:24px;display:flex}.progress-profile .avatar{width:80px;height:80px;font-size:1.75rem}.stats{border-top:1px solid var(--color-border);border-bottom:1px solid var(--color-border);gap:32px;padding:32px 0;display:flex}.stat{flex:1}.stat strong{font-family:var(--font-display);letter-spacing:-.045em;font-size:3.5rem;line-height:4rem;display:block}.activity-row{border-top:1px solid var(--color-border);align-items:center;gap:20px;padding:20px 0;display:flex}.activity-icon{background:var(--color-subtle);border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;width:44px;height:44px;display:flex}.activity-row .info{flex:1}.activity-row .points{text-align:right;flex-shrink:0;width:90px;font-weight:600}.activity-row .status{flex-shrink:0;justify-content:center;width:148px}.activity-row .date{width:92px;color:var(--color-muted);flex-shrink:0;font-size:.875rem}.progress-chart{border-bottom:1px solid var(--color-border);align-items:end;gap:12px;height:180px;padding-bottom:8px;display:flex}.progress-chart>div{background:var(--color-primary);border-radius:6px 6px 0 0;flex:1;position:relative}.progress-chart>div:last-child{background:var(--color-accent)}.chart-labels{color:var(--color-muted);justify-content:space-between;font-size:.875rem;display:flex}.sign-in{align-items:center;gap:64px;min-height:740px;display:flex}.sign-in .welcome{background:var(--color-ink);color:#fff;border-radius:24px;flex-direction:column;justify-content:center;gap:24px;width:50%;min-height:600px;padding:48px;display:flex}.sign-in .welcome h1{font-size:4rem;line-height:4.5rem}.sign-in .welcome svg{width:260px;height:160px}.sign-in .form{flex-direction:column;flex:1;gap:24px;max-width:420px;display:flex}.auth-divider{color:var(--color-muted);align-items:center;gap:16px;font-size:.875rem;display:flex}.auth-divider:before,.auth-divider:after{content:"";background:var(--color-border);flex:1;height:1px}.bottom-nav,.mock-status-bar{display:none}.system-heading{justify-content:space-between;align-items:end;gap:24px;display:flex}.system-heading h1{font-size:4rem;line-height:4.5rem}.system-section{border-top:1px solid var(--color-border);flex-direction:column;gap:24px;padding-top:32px;display:flex}.swatches{grid-template-columns:repeat(6,minmax(0,1fr));gap:16px;display:grid}.swatch{flex-direction:column;gap:10px;display:flex}.swatch-box{border:1px solid var(--color-border);border-radius:12px;height:112px}.type-specimens{align-items:start;gap:64px;display:flex}.type-specimens>div{flex-direction:column;flex:1;gap:16px;display:flex}.type-specimens .display{font-family:var(--font-display);letter-spacing:-.045em;font-size:3.5rem;font-weight:800;line-height:4rem}.system-controls{flex-wrap:wrap;align-items:center;gap:24px;display:flex}.state-cards{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;display:grid}.state-card{border:1px solid var(--color-border);background:#fff;border-radius:16px;flex-direction:column;gap:16px;padding:24px;display:flex}.state-card .status{border-radius:8px}.empty-state{border:1px solid var(--color-border);text-align:center;background:#fff;border-radius:16px;flex-direction:column;justify-content:center;align-items:center;gap:16px;padding:32px;display:flex}.empty-state p{max-width:440px}.skeleton{background:var(--color-disabled);border-radius:4px;height:16px;position:relative;overflow:hidden}.skeleton:after{content:"";background:linear-gradient(90deg,#0000,#ffffff70,#0000);animation:1.5s infinite shimmer;position:absolute;inset:0;transform:translate(-100%)}.skeleton.big{height:120px}.rule-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:40px;display:grid}.rule{flex-direction:column;gap:12px;display:flex}.rule-number{color:var(--color-primary);font-size:.875rem}.spacing-grid{flex-wrap:wrap;align-items:end;gap:24px;display:flex}.spacing-sample{color:var(--color-muted);flex-direction:column;gap:8px;font-size:.875rem;display:flex}.spacing-sample i{background:var(--color-primary);border-radius:4px;width:24px;display:block}.token-code{white-space:pre-wrap;background:var(--color-ink);color:#eaf0e5;border-radius:16px;max-height:380px;padding:24px;font:14px/24px monospace;overflow:auto}.reference-list{flex-direction:column;gap:16px;display:flex}.reference-list a{color:var(--color-primary);text-underline-offset:4px;text-decoration:underline}.references .reference-item{border-top:1px solid var(--color-border);gap:32px;padding-top:20px;display:flex}.references .reference-item>div:first-child{flex-shrink:0;width:240px}.references .reference-item>div:last-child{flex:1}.dialog-backdrop{z-index:50;background:#172e2580;justify-content:center;align-items:center;padding:24px;display:flex;position:fixed;inset:0}.dialog{background:var(--color-canvas);border-radius:24px;flex-direction:column;gap:24px;width:520px;max-width:100%;padding:32px;display:flex;box-shadow:0 24px 80px #172e2530}.dialog-actions{justify-content:end;gap:16px;display:flex}.dialog p{color:var(--color-muted)}#toast{background:var(--color-ink);color:#fff;z-index:60;opacity:0;pointer-events:none;border-radius:12px;max-width:90%;padding:14px 24px;font-size:.875rem;transition:opacity .18s,transform .18s;position:fixed;bottom:28px;left:50%;transform:translate(-50%,20px)}#toast.show{opacity:1;transform:translate(-50%)}.comment-box{gap:12px;padding:0 24px 24px;display:flex}.comment-box input{border:1px solid var(--color-border);border-radius:8px;width:100%;padding:12px;font-size:1rem}.comment{padding:0 24px 16px;font-size:.875rem;line-height:1.25rem}.error-text{color:var(--color-error);font-size:.875rem;line-height:1.25rem}@keyframes shimmer{to{transform:translate(100%)}}@media (prefers-reduced-motion:reduce){*,:before,:after{transition:none!important;animation:none!important}}@media (max-width:1180px){.app-nav{gap:16px;padding:24px 40px}.nav-links{gap:24px}.main{padding:32px 40px 48px}.rail{width:300px}.feature-art{width:340px}.feature h1{font-size:3rem;line-height:3.5rem}.feature{padding:32px}.card-info{padding:20px}.card-info h2{font-size:1.5rem;line-height:2rem}.columns{gap:32px}.mission-art{gap:16px}.mission-art svg{width:180px}.mission-art h2{font-size:2rem;line-height:2.5rem}.studio-brand span{display:none}}@media (max-width:900px){.nav-links{gap:16px}.nav-actions .btn{padding:0 12px}.app-nav{padding:24px}.main{padding:32px 24px 48px}.columns{flex-direction:column}.rail{width:100%}.cards{grid-template-columns:repeat(2,minmax(0,1fr))}.cards .challenge-card:last-child{grid-column:span 2}.feature-art{max-width:35%}.feature h1{font-size:2.5rem;line-height:3rem}.feature{height:auto;min-height:320px}.section-heading h2{font-size:2rem;line-height:2.5rem}.swatches{grid-template-columns:repeat(3,minmax(0,1fr))}.state-cards,.rule-grid{grid-template-columns:1fr}.type-specimens{flex-direction:column;gap:32px}.type-specimens>div{width:100%}.sign-in{gap:32px}.sign-in .welcome{width:45%;padding:32px}.sign-in .welcome h1{font-size:2.5rem;line-height:3rem}.system-heading h1{font-size:3rem;line-height:3.5rem}}.stage.is-mobile .app-nav{height:80px;padding:18px 20px}.stage.is-mobile .brand{gap:10px;font-size:1.75rem}.stage.is-mobile .brand svg{width:34px;height:34px}.stage.is-mobile .nav-links,.stage.is-mobile .nav-actions>.btn{display:none}.stage.is-mobile .nav-actions{gap:0}.stage.is-mobile .main{gap:28px;padding:24px 20px 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.sign-in{flex-direction:column;gap:28px;min-height:0}.stage.is-mobile .sign-in .welcome{width:100%;min-height:200px;padding:24px}.stage.is-mobile .sign-in .welcome h1{font-size:2.25rem;line-height:2.625rem}.stage.is-mobile .sign-in .welcome svg{display:none}.stage.is-mobile .sign-in .form{width:100%}.stage.is-mobile .bottom-nav{background:var(--color-canvas);border-top:1px solid var(--color-border);z-index:10;justify-content:space-between;gap:4px;padding:10px 8px 16px;display:flex;position:sticky;bottom:0}.stage.is-mobile .bottom-nav a{min-width:72px;min-height:48px;color:var(--color-muted);flex-direction:column;justify-content:center;align-items:center;gap:4px;font-size:.75rem;line-height:1rem;display:flex}.stage.is-mobile .bottom-nav a.active{color:var(--color-primary);font-weight:600}.stage.is-mobile .system-heading{flex-direction:column;align-items:start}.stage.is-mobile .system-heading h1{font-size:2.5rem;line-height:3rem}.stage.is-mobile 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.stat{min-width:120px}.stage:not(.is-mobile) .stat strong{font-size:2.5rem;line-height:3rem}.stage:not(.is-mobile) .activity-row{flex-wrap:wrap}.stage:not(.is-mobile) .sign-in{flex-direction:column}.stage:not(.is-mobile) .sign-in .welcome{width:100%;min-height:220px}.stage:not(.is-mobile) .sign-in .welcome svg{display:none}.stage:not(.is-mobile) .sign-in .form{width:100%}.stage:not(.is-mobile) .system-heading{flex-direction:column;align-items:start}.stage:not(.is-mobile) .system-heading h1{font-size:2.5rem;line-height:3rem}.stage:not(.is-mobile) .post-visual{gap:16px;padding:20px}.stage:not(.is-mobile) .post-visual h2{font-size:1.75rem;line-height:2.25rem}.stage:not(.is-mobile) .post-visual svg{width:100px}.stage:not(.is-mobile) .post-footer{flex-wrap:wrap}.stage:not(.is-mobile) .post-footer .status{margin-left:0}}.columns>*,.form-two>*,.row>*{min-width:0}.stage.is-mobile .row{flex-wrap:wrap}.stage.is-mobile .assessment-panel 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p{-webkit-line-clamp:3;-webkit-box-orient:vertical;display:-webkit-box;overflow:hidden}.card-footer{margin-top:auto}.category-art.conservation{background:#e4e9de}.field .label{justify-content:space-between;gap:16px;display:flex}.field .label small{color:var(--color-muted);font-weight:400}.search:focus-within{outline:2px solid var(--color-focus);outline-offset:4px}.full-page{width:100%}.field-notes ul,.panel ul{flex-direction:column;gap:12px;margin:0;padding-left:22px;display:flex}.check-row{align-items:start}.check-row input{margin-top:2px}.photo-preview{object-fit:cover;width:100%;height:100%}.upload-area strong,.upload-area span{pointer-events:none}.upload-area input{z-index:2}.form-two>*{min-width:0}.feedback-note strong{color:var(--color-ink)}.small-list{flex-direction:column;gap:12px;display:flex}.loading-dot{border:2px solid;border-right-color:#0000;border-radius:50%;width:18px;height:18px;animation:1s linear infinite spin}.post-image{object-fit:cover;background:var(--color-subtle);width:100%;max-height:480px}.assessment-photo{object-fit:cover;border-radius:12px;width:100%;max-height:340px}.footer{border-top:1px solid var(--color-border);color:var(--color-muted);justify-content:space-between;gap:20px;margin:0 64px;padding:24px 0;font-size:.8125rem;display:flex}.footer a{text-underline-offset:3px;text-decoration:underline}.dialog-native{background:0 0;border:0;max-width:calc(100% - 32px);padding:0;overflow:visible}.dialog-native::backdrop{background:#172e2580}.dialog-native .dialog{width:520px;max-width:100%}.dialog-actions{flex-wrap:wrap}.history-card{border:1px solid var(--color-border);background:#fff;border-radius:16px;flex-direction:column;gap:12px;padding:24px;display:flex}.history-card .row{flex-wrap:wrap}.history-card h3{font-size:1.375rem}.button-row{flex-wrap:wrap;gap:12px;display:flex}.auth-message{background:var(--color-info-soft);border-radius:12px;padding:16px;font-size:.875rem}.signin-title{font-size:2.25rem;line-height:2.625rem}.sign-in .welcome h2{font-size:3.25rem;line-height:3.75rem}.date-note{color:var(--color-muted);font-size:.875rem}.card-meta{color:var(--color-muted);flex-wrap:wrap;gap:8px;font-size:.8125rem;display:flex}.requirement-list{flex-direction:column;gap:16px;display:flex}.requirement-result{border-top:1px solid var(--color-border);gap:12px;padding-top:16px;display:flex}.requirement-result svg{flex-shrink:0;margin-top:3px}.requirement-result p{color:var(--color-muted);margin-top:6px;font-size:.875rem}.upload-name{overflow-wrap:anywhere}.legal{max-width:800px}.legal h2{margin-top:16px}.legal p{color:var(--color-muted)}@keyframes spin{to{transform:rotate(360deg)}}@media (max-width:1000px){.nav-links,.app-nav{gap:16px}.nav-actions{gap:8px}.brand{font-size:1.75rem}.nav-actions .btn{padding:0 14px}.feature h1{font-size:2.75rem;line-height:3.25rem}.mode-note{padding:10px 24px}}@media (max-width:640px){.app-nav{flex-wrap:nowrap;height:80px;padding:16px 20px}.nav-links,.nav-actions .create-link{display:none}.nav-actions .btn{height:44px;font-size:.875rem}.brand{gap:8px;font-size:1.75rem}.brand svg{width:36px;height:36px}.main{gap:24px;padding:24px 20px 40px}.mode-note{padding:10px 20px}.feature{border-radius:20px;height:auto;min-height:310px;padding:28px 24px}.feature-art{display:none}.feature h1,h1{font-size:2.25rem;line-height:2.625rem}.feature-copy p{font-size:1rem}.feature-copy{gap:20px}.cards,.form-two,.upload-grid{grid-template-columns:1fr}.cards .challenge-card:last-child{grid-column:auto}.section-heading{align-items:start;gap:12px}.section-heading h2{font-size:1.75rem;line-height:2.25rem}.section-heading .btn{padding:0 14px}.filter-bar{gap:8px}.filter{padding:0 16px}.search{width:100%;margin-left:0}.panel,.assessment-panel{padding:24px}.columns{gap:24px}.wide{width:100%}.mission-art{gap:8px;height:auto;min-height:150px;padding:24px}.mission-art svg{width:130px;max-width:40%}.mission-art h2{font-size:1.625rem;line-height:2.125rem}.form-actions{flex-direction:column;align-items:stretch;gap:12px}.form-actions .btn{width:100%}.stats{flex-wrap:wrap;gap:16px;padding:24px 0}.stat{min-width:90px}.stat strong{font-size:2.25rem;line-height:2.75rem}.progress-profile{gap:16px}.progress-profile .avatar{width:56px;height:56px;font-size:1.375rem}.progress-profile h2{font-size:1.5rem;line-height:2rem}.bottom-nav{z-index:30;background:var(--color-canvas);border-top:1px solid var(--color-border);padding:8px 12px calc(8px + env(safe-area-inset-bottom));justify-content:space-around;display:flex;position:fixed;bottom:0;left:0;right:0}.bottom-nav a{min-width:60px;min-height:48px;color:var(--color-muted);flex-direction:column;justify-content:center;align-items:center;gap:4px;font-size:.6875rem;line-height:1rem;display:flex}.bottom-nav a[aria-current=page]{color:var(--color-primary);font-weight:700}.product{padding-bottom:76px}.footer{flex-wrap:wrap;margin:0 20px;padding:20px 0}.sign-in{flex-direction:column;gap:28px;min-height:0}.sign-in .welcome{gap:16px;width:100%;min-height:220px;padding:28px}.sign-in .welcome h2{font-size:2.25rem;line-height:2.625rem}.sign-in .welcome svg{display:none}.sign-in .form{width:100%;max-width:none}.signin-title{font-size:2rem;line-height:2.5rem}.row{flex-wrap:wrap;gap:12px}.assessment-panel .reward{font-size:3.5rem;line-height:4rem}.dialog{gap:20px;padding:24px}.button-row .btn{flex:1}.post-header{padding:20px}.post-copy{padding:0 20px 20px}}.reward .small{font-family:var(--font-body);letter-spacing:normal;font-size:.875rem;font-weight:400;line-height:1.25rem}.mission-art{height:auto;min-height:220px}.settings-fields{border:0;min-width:0;margin:0;padding:0}.challenge-appearance{--challenge-scale:1;font-family:var(--font-body);overflow-wrap:anywhere}.challenge-appearance[data-font=sans]{--font-body:Arial, sans-serif;--font-display:Arial, sans-serif}.challenge-appearance[data-font=serif]{--font-body:Georgia, serif;--font-display:Georgia, serif}.challenge-appearance[data-size=small]{--challenge-scale:.875}.challenge-appearance[data-size=large]{--challenge-scale:1.25}.challenge-appearance h1{font-size:calc(3.5rem * var(--challenge-scale));line-height:1.15}.challenge-appearance h2{font-size:calc(1.75rem * var(--challenge-scale));line-height:1.3}.challenge-appearance h3{font-size:calc(1.25rem * var(--challenge-scale));line-height:1.4}.challenge-appearance p{font-size:calc(1rem * var(--challenge-scale));line-height:1.5}.challenge-appearance .mission-art h2{font-size:calc(2.5rem * var(--challenge-scale))}@media (max-width:640px){.challenge-appearance h1{font-size:calc(2.25rem * var(--challenge-scale))}.challenge-appearance .mission-art h2{font-size:calc(1.5rem * var(--challenge-scale))}}.text-size-control{flex-wrap:wrap;align-items:center;gap:.5rem;display:flex}.text-size-control select{padding:.4rem}.footer{flex-wrap:wrap}.review-photo{object-fit:contain;width:100%;max-height:320px}.review-card{gap:1rem;margin-top:1rem;display:grid}