.ex-shell{--ex-forest: #173f35;--ex-forest-2: #245b4c;--ex-cream: #fbf8ed;--ex-paper: #fffdf7;--ex-lime: #c9f269;--ex-lime-deep: #9fd53c;--ex-ink: #18312b;--ex-muted: #66766f;--ex-line: #dbe2d8;--ex-danger: #a43b2f;color:var(--ex-ink);margin:0 auto;max-width:1240px;padding:clamp(1rem,3vw,2.5rem)}.ex-shell *,.ex-shell *:before,.ex-shell *:after{box-sizing:border-box}.ex-shell button,.ex-shell input{font:inherit}.ex-eyebrow{align-items:center;color:var(--ex-forest-2);display:inline-flex;font-size:.72rem;font-weight:800;gap:.4rem;letter-spacing:.1em;text-transform:uppercase}.ex-intro{align-items:end;background:var(--ex-forest);border-radius:26px;color:#fff;display:grid;gap:2rem;grid-template-columns:minmax(0,1fr) auto;overflow:hidden;padding:clamp(1.5rem,4vw,3rem);position:relative}.ex-intro:after{background:var(--ex-lime);border-radius:50%;content:"";filter:blur(2px);height:180px;opacity:.08;position:absolute;right:-40px;top:-80px;width:180px}.ex-intro .ex-eyebrow{color:var(--ex-lime)}.ex-intro h1{font-size:clamp(2rem,5vw,4rem);letter-spacing:-.045em;line-height:.98;margin:.65rem 0 1rem;max-width:750px}.ex-intro p{color:#dbe8e2;line-height:1.65;margin:0;max-width:700px}.ex-spec-card{background:#ffffff17;border:1px solid rgba(255,255,255,.16);border-radius:20px;display:grid;grid-template-columns:repeat(3,minmax(90px,1fr));padding:.8rem;position:relative;z-index:1}.ex-spec-card div{padding:.5rem 1rem;text-align:center}.ex-spec-card div+div{border-left:1px solid rgba(255,255,255,.18)}.ex-spec-card strong{color:var(--ex-lime);display:block;font-size:1.55rem}.ex-spec-card span{color:#dbe8e2;font-size:.75rem}.ex-storage-warning{align-items:flex-start;background:#fff4dd;border:1px solid #edcf8e;border-radius:12px;color:#6c501b;display:flex;gap:.65rem;line-height:1.45;margin:1rem 0;padding:.85rem 1rem}.ex-storage-warning svg{flex:0 0 auto;margin-top:.1rem}.ex-setup,.ex-blueprint,.ex-breakdown,.ex-review,.ex-history{margin-top:clamp(2rem,5vw,4rem)}.ex-section-heading{align-items:end;display:flex;gap:1rem;justify-content:space-between;margin-bottom:1.25rem}.ex-section-heading h2{font-size:clamp(1.45rem,3vw,2rem);letter-spacing:-.03em;margin:.25rem 0 0}.ex-count-pill{background:var(--ex-lime);border-radius:999px;font-weight:800;padding:.3rem .7rem}.ex-time-toggle{align-items:center;cursor:pointer;display:flex;gap:.7rem}.ex-time-toggle>input{height:1px;opacity:0;position:absolute;width:1px}.ex-toggle-track{background:#a9b4ae;border-radius:99px;display:block;height:28px;padding:3px;transition:background .2s;width:50px}.ex-toggle-track span{background:#fff;border-radius:50%;box-shadow:0 1px 4px #173f3540;display:block;height:22px;transition:transform .2s;width:22px}.ex-time-toggle input:checked+.ex-toggle-track{background:var(--ex-forest)}.ex-time-toggle input:checked+.ex-toggle-track span{transform:translate(22px)}.ex-time-toggle input:focus-visible+.ex-toggle-track{outline:3px solid #8ebd35;outline-offset:3px}.ex-time-toggle strong,.ex-time-toggle small{display:block}.ex-time-toggle small{color:var(--ex-muted);font-size:.72rem;margin-top:.1rem}.ex-form-grid{display:grid;gap:1rem;grid-template-columns:repeat(3,minmax(0,1fr))}.ex-form-card{background:var(--ex-paper);border:1px solid var(--ex-line);border-radius:18px;display:flex;flex-direction:column;gap:1rem;min-height:330px;padding:1.35rem;transition:border-color .2s,box-shadow .2s,transform .2s}.ex-form-card:hover{border-color:#aac47b;box-shadow:0 14px 35px #173f3512;transform:translateY(-2px)}.ex-form-card h3{font-size:1.25rem;line-height:1.15;margin:.3rem 0 0}.ex-form-card p{color:var(--ex-muted);line-height:1.55;margin:0}.ex-form-card .ex-button{margin-top:auto;width:100%}.ex-form-mark{align-items:center;background:var(--ex-lime);border-radius:12px;display:flex;font-size:1.25rem;font-weight:900;height:48px;justify-content:center;width:48px}.ex-form-tags{display:flex;flex-wrap:wrap;gap:.4rem}.ex-form-tags span{background:#edf2ea;border-radius:99px;color:#466158;font-size:.72rem;font-weight:700;padding:.28rem .55rem}.ex-quick-card{background:#eff7e7}.ex-button{align-items:center;border:0;border-radius:10px;cursor:pointer;display:inline-flex;font-weight:800;gap:.45rem;justify-content:center;min-height:44px;padding:.7rem 1rem;transition:background .15s,transform .15s}.ex-button:active:not(:disabled){transform:translateY(1px)}.ex-button:focus-visible,.ex-shell summary:focus-visible,.ex-number-grid button:focus-visible,.ex-flag-button:focus-visible,.ex-option:has(input:focus-visible){outline:3px solid #8ebd35;outline-offset:3px}.ex-button:disabled{cursor:not-allowed;opacity:.45}.ex-button-primary{background:var(--ex-forest);color:#fff}.ex-button-primary:hover:not(:disabled){background:var(--ex-forest-2)}.ex-button-secondary{background:#edf1ec;color:var(--ex-forest)}.ex-button-secondary:hover:not(:disabled){background:#dfe8df}.ex-blueprint{background:#f3f1e8;border-radius:20px;padding:clamp(1.25rem,3vw,2rem)}.ex-blueprint-list{display:grid;gap:.85rem}.ex-blueprint-row{align-items:center;display:grid;font-size:.86rem;gap:.8rem;grid-template-columns:minmax(210px,1fr) minmax(130px,1fr) 42px}.ex-blueprint-row strong{text-align:right}.ex-meter{background:#dfe5da;border-radius:99px;height:7px;overflow:hidden}.ex-meter>span{background:var(--ex-lime-deep);border-radius:inherit;display:block;height:100%;min-width:2px}.ex-notice{align-items:flex-start;background:#fff8dd;border:1px solid #ebdc9a;border-radius:15px;display:flex;gap:.8rem;line-height:1.55;margin-top:1.25rem;padding:1rem 1.1rem}.ex-notice svg{color:#7b6525;flex:0 0 auto;margin-top:.15rem}.ex-notice p{color:#685f42;font-size:.86rem;margin:.2rem 0 0}.ex-history-list{border:1px solid var(--ex-line);border-radius:15px;overflow:hidden}.ex-history-row{align-items:center;background:#fff;display:flex;justify-content:space-between;padding:1rem}.ex-history-row+.ex-history-row{border-top:1px solid var(--ex-line)}.ex-history-row span{color:var(--ex-muted);display:block;font-size:.78rem;margin-top:.2rem}.ex-pass-text{color:#26704f}.ex-fail-text{color:var(--ex-danger)}.ex-active-shell{max-width:1380px}.ex-exam-header{align-items:center;background:var(--ex-forest);border-radius:18px 18px 0 0;color:#fff;display:flex;justify-content:space-between;padding:1rem 1.25rem}.ex-exam-header>div:first-child strong{display:block;font-size:1.05rem;margin-top:.25rem}.ex-exam-header .ex-eyebrow{color:var(--ex-lime)}.ex-timer{align-items:center;background:#ffffff12;border-radius:10px;display:flex;gap:.5rem;min-height:42px;padding:.55rem .75rem}.ex-timer span{color:#ccdad5;font-size:.75rem}.ex-timer strong{font-variant-numeric:tabular-nums}.ex-timer-urgent{background:#a43b2f}.ex-progress{background:#d6ded9;height:5px;overflow:hidden}.ex-progress span{background:var(--ex-lime);display:block;height:100%;transition:width .2s}.ex-workspace{align-items:start;display:grid;gap:1.25rem;grid-template-columns:minmax(0,1fr) 300px;margin-top:1.25rem}.ex-question-card{background:var(--ex-paper);border:1px solid var(--ex-line);border-radius:18px;min-width:0;padding:clamp(1.1rem,3vw,2rem)}.ex-question-meta{color:var(--ex-muted);display:flex;font-size:.76rem;font-weight:700;gap:.8rem;justify-content:space-between}.ex-question-meta span:last-child{max-width:65%;text-align:right}.ex-options{border:0;margin:0;padding:0}.ex-options legend{color:var(--ex-ink);font-size:clamp(1.2rem,2.7vw,1.65rem);font-weight:800;line-height:1.38;margin:1.2rem 0 1.5rem;padding:0;width:100%}.ex-option{align-items:center;background:#fff;border:1px solid var(--ex-line);border-radius:12px;cursor:pointer;display:grid;gap:.8rem;grid-template-columns:auto 34px 1fr;line-height:1.4;margin-top:.7rem;min-height:58px;padding:.65rem .8rem;transition:border-color .15s,background .15s}.ex-option:hover{border-color:#9ab57b}.ex-option input{height:18px;margin:0;width:18px}.ex-option-letter{align-items:center;background:#eef2ec;border-radius:8px;display:flex;font-size:.8rem;font-weight:800;height:32px;justify-content:center;width:32px}.ex-option-selected{background:#f1f8e4;border-color:#86aa46}.ex-option-selected .ex-option-letter{background:var(--ex-lime)}.ex-question-actions{align-items:center;border-top:1px solid var(--ex-line);display:flex;gap:1rem;justify-content:space-between;margin-top:1.5rem;padding-top:1.15rem}.ex-step-actions{display:flex;gap:.6rem}.ex-flag-button{align-items:center;background:transparent;border:0;color:var(--ex-muted);cursor:pointer;display:flex;font-weight:700;gap:.4rem;padding:.55rem 0}.ex-flagged{color:#8a5b18}.ex-navigator{background:#fff;border:1px solid var(--ex-line);border-radius:18px;padding:1.1rem;position:sticky;top:1rem}.ex-navigator-top{align-items:center;display:flex;justify-content:space-between}.ex-navigator-top h2{font-size:.95rem;margin:0}.ex-navigator-top span{align-items:center;color:var(--ex-muted);display:flex;font-size:.72rem;gap:.25rem}.ex-number-grid{display:grid;gap:.38rem;grid-template-columns:repeat(10,1fr);margin-top:1rem}.ex-number-grid button{aspect-ratio:1;background:#f3f4f1;border:1px solid transparent;border-radius:6px;color:#596861;cursor:pointer;font-size:.68rem;font-weight:700;padding:0;position:relative}.ex-number-grid button:hover{border-color:var(--ex-forest-2)}.ex-number-grid button[aria-current=step]{border-color:var(--ex-forest);box-shadow:inset 0 0 0 1px var(--ex-forest)}.ex-number-grid .ex-number-answered{background:var(--ex-forest);color:#fff}.ex-number-grid .ex-number-flagged:after{background:#f3a72c;border:1px solid white;border-radius:50%;content:"";height:7px;position:absolute;right:-2px;top:-2px;width:7px}.ex-nav-legend{color:var(--ex-muted);display:flex;font-size:.7rem;gap:1rem;margin:.85rem 0}.ex-nav-legend span{align-items:center;display:flex;gap:.3rem}.ex-dot{border-radius:50%;display:inline-block;height:8px;width:8px}.ex-dot-answered{background:var(--ex-forest)}.ex-dot-flagged{background:#f3a72c}.ex-button-finish{background:var(--ex-lime);color:var(--ex-forest);width:100%}.ex-button-finish:hover{background:#bae559}.ex-modal-backdrop{align-items:center;background:#102a24b8;display:flex;top:0;right:0;bottom:0;left:0;justify-content:center;padding:1rem;position:fixed;z-index:50}.ex-modal{background:var(--ex-paper);border-radius:18px;box-shadow:0 25px 80px #0005;max-width:460px;padding:1.5rem;width:100%}.ex-modal>svg{color:#ad6e18}.ex-modal h2{font-size:1.35rem;margin:.7rem 0}.ex-modal p{color:var(--ex-muted);line-height:1.5}.ex-modal-actions{display:flex;gap:.65rem;justify-content:flex-end;margin-top:1.25rem}.ex-result-hero{align-items:center;border-radius:24px;display:flex;flex-direction:column;padding:clamp(1.5rem,5vw,3.5rem);text-align:center}.ex-result-pass{background:#e8f5d1}.ex-result-retry{background:#f8e9df}.ex-result-hero>svg{color:var(--ex-forest)}.ex-result-hero h1{font-size:clamp(1.8rem,4vw,3rem);letter-spacing:-.04em;margin:.55rem 0}.ex-result-hero p{color:var(--ex-muted);line-height:1.5;margin:.7rem 0 0}.ex-score{align-items:baseline;display:flex;gap:.7rem;margin-top:.5rem}.ex-score strong{color:var(--ex-forest);font-size:clamp(2.8rem,7vw,5rem);letter-spacing:-.06em}.ex-score span{color:var(--ex-muted)}.ex-result-actions{display:flex;gap:.65rem;margin-top:1.4rem}.ex-domain-grid{display:grid;gap:.7rem;grid-template-columns:repeat(2,minmax(0,1fr))}.ex-domain-result{background:#fff;border:1px solid var(--ex-line);border-radius:12px;padding:1rem}.ex-domain-result>div:first-child{align-items:start;display:flex;font-size:.83rem;gap:1rem;justify-content:space-between;margin-bottom:.65rem}.ex-domain-result>div:first-child span{color:var(--ex-muted);flex:0 0 auto}.ex-review-list{display:grid;gap:.65rem}.ex-review-item{background:#fff;border:1px solid var(--ex-line);border-left-width:4px;border-radius:12px;overflow:hidden}.ex-review-correct{border-left-color:#4a9b65}.ex-review-wrong{border-left-color:#c75e4e}.ex-review-item summary{align-items:flex-start;cursor:pointer;display:grid;gap:.8rem;grid-template-columns:28px 1fr;line-height:1.4;list-style:none;padding:1rem}.ex-review-item summary::-webkit-details-marker{display:none}.ex-review-item summary small{color:var(--ex-muted);display:block;font-size:.7rem;margin-bottom:.22rem;text-transform:uppercase}.ex-review-icon{align-items:center;background:#eef2ec;border-radius:50%;display:flex;height:28px;justify-content:center;width:28px}.ex-review-correct .ex-review-icon{color:#277146}.ex-review-wrong .ex-review-icon{color:var(--ex-danger)}.ex-review-body{background:#f7f7f2;border-top:1px solid var(--ex-line);line-height:1.55;padding:1rem 1rem 1rem 3.8rem}.ex-review-body p{margin:.35rem 0}.ex-explanation{color:#495d55}.ex-source-line{color:var(--ex-muted);font-size:.78rem}.ex-source-line a{color:var(--ex-forest-2);font-weight:800;margin-left:.6rem}@media(max-width:980px){.ex-intro{align-items:stretch;grid-template-columns:1fr}.ex-form-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.ex-workspace{grid-template-columns:1fr}.ex-navigator{position:static}.ex-number-grid{grid-template-columns:repeat(10,minmax(28px,1fr))}}@media(max-width:640px){.ex-shell{padding:.75rem}.ex-intro{border-radius:18px;padding:1.25rem}.ex-spec-card{grid-template-columns:repeat(3,1fr)}.ex-spec-card div{padding:.35rem}.ex-spec-card strong{font-size:1.2rem}.ex-section-heading{align-items:flex-start;flex-direction:column}.ex-time-toggle{width:100%}.ex-form-grid,.ex-domain-grid{grid-template-columns:1fr}.ex-form-card{min-height:0}.ex-blueprint-row{gap:.5rem;grid-template-columns:1fr 42px}.ex-blueprint-row .ex-meter{grid-column:1 / -1;grid-row:2}.ex-exam-header{align-items:flex-start;gap:.6rem}.ex-timer{align-items:flex-end;flex-direction:column;gap:0}.ex-timer svg{display:none}.ex-timer span{font-size:.62rem}.ex-question-card{padding:1rem}.ex-question-meta{align-items:flex-start;flex-direction:column}.ex-question-meta span:last-child{max-width:100%;text-align:left}.ex-option{grid-template-columns:auto 30px 1fr;padding:.65rem}.ex-question-actions{align-items:stretch;flex-direction:column}.ex-step-actions{display:grid;grid-template-columns:1fr 1fr}.ex-number-grid{grid-template-columns:repeat(5,1fr)}.ex-number-grid button{min-height:40px}.ex-modal-actions,.ex-result-actions{flex-direction:column;width:100%}.ex-result-actions .ex-button,.ex-modal-actions .ex-button{width:100%}.ex-score{align-items:center;flex-direction:column;gap:0}.ex-review-body{padding:1rem}.ex-history-row{align-items:flex-start;gap:.7rem}.ex-history-row>strong{flex:0 0 auto}}@media(prefers-reduced-motion:reduce){.ex-shell *,.ex-shell *:before,.ex-shell *:after{scroll-behavior:auto!important;transition-duration:.01ms!important}}:root{color:#17211d;background:#f6f5ef;font-family:ui-sans-serif,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility;--paper: #f6f5ef;--card: #fffefa;--forest: #173c32;--forest-2: #26584b;--lime: #dbed9a;--orange: #df7548;--ink: #17211d;--muted: #69736e;--line: #dcded5;--soft: #ecece4;--radius: 20px;--shadow: 0 18px 48px rgba(23, 60, 50, .08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-width:320px;min-height:100vh;background:var(--paper)}button,input,select{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button,a{color:inherit}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #ee8a58;outline-offset:3px}svg{width:20px;height:20px;stroke-width:1.8;flex:0 0 auto}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.app-shell{min-height:100vh}.sidebar{position:fixed;inset:0 auto 0 0;z-index:20;display:flex;width:248px;flex-direction:column;padding:30px 20px 24px;color:#f7f8f1;background:var(--forest)}.app-main{min-height:100vh;margin-left:248px}.page{width:min(1320px,100%);margin:0 auto;padding:58px clamp(28px,5vw,76px) 40px}.narrow-page{width:min(1040px,100%)}.site-footer{padding:22px 40px 110px;color:var(--muted);font-size:12px;text-align:center}.mobile-header,.mobile-nav{display:none}.brand{display:flex;gap:11px;align-items:center;padding:0;border:0;color:inherit;background:none;font-size:21px;letter-spacing:-.4px;cursor:pointer}.brand-mark{display:grid;width:39px;height:39px;place-items:center;border-radius:12px;color:var(--forest);background:var(--lime)}.brand-mark svg{width:21px}.side-nav{display:grid;gap:5px;margin:54px 0 30px}.nav-button{display:flex;align-items:center;width:100%;gap:13px;padding:12px 13px;border:0;border-radius:12px;color:#c9d7d1;background:transparent;font-size:14px;text-align:left;cursor:pointer;transition:.18s ease}.nav-button:hover{color:#fff;background:#ffffff14}.nav-button.active{color:var(--forest);background:var(--lime);font-weight:700}.nav-button svg{width:18px}.sidebar-progress{margin-top:auto;padding:17px;border:1px solid rgba(255,255,255,.13);border-radius:17px;background:#ffffff0f}.sidebar-progress strong{display:block;margin:8px 0 12px;font-size:23px}.sidebar-progress strong span{color:#a8beb5;font-size:13px;font-weight:500}.sidebar-progress small{display:block;margin-top:10px;color:#b9cac3;line-height:1.45}.sidebar-note{margin:22px 0 0;color:#8fa99e;font-size:11px;text-align:center}.page-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:32px}.page-heading>div{max-width:800px}.eyebrow{color:#5b6863;font-size:11px;font-weight:800;letter-spacing:.13em;text-transform:uppercase}.eyebrow.pale{color:#bcd0c7}h1,h2,h3,p{margin-top:0}h1,h2,h3{letter-spacing:-.035em}.page-heading h1{max-width:760px;margin:10px 0 12px;font-family:Georgia,Times New Roman,serif;font-size:clamp(38px,5vw,64px);font-weight:500;line-height:.99}.page-heading p{max-width:690px;margin:0;color:var(--muted);font-size:16px;line-height:1.6}.button{display:inline-flex;min-height:46px;align-items:center;justify-content:center;gap:9px;padding:11px 17px;border:1px solid transparent;border-radius:12px;font-size:13px;font-weight:750;text-decoration:none;cursor:pointer;transition:transform .15s ease,background .15s ease}.button:hover:not(:disabled){transform:translateY(-1px)}.button:disabled{opacity:.45;cursor:not-allowed}.button svg{width:17px}.button.dark{color:#fff;background:var(--forest)}.button.dark:hover:not(:disabled){background:#0d2e26}.button.lime{color:var(--forest);background:var(--lime)}.button.secondary{border-color:var(--line);background:var(--card)}.button.full{width:100%}.text-button,.back-button{display:inline-flex;align-items:center;gap:7px;padding:5px;border:0;color:var(--forest);background:transparent;font-size:13px;font-weight:750;cursor:pointer}.text-button svg,.back-button svg{width:16px}.back-button{margin:0 0 23px;padding:5px 0;color:var(--muted)}.icon-button{display:grid;width:40px;height:40px;place-items:center;border:1px solid var(--line);border-radius:11px;background:var(--card)}.stat-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-bottom:18px}.stat-card{display:flex;align-items:center;gap:12px;min-width:0;padding:15px 17px;border:1px solid var(--line);border-radius:16px;background:#ffffff8a}.stat-card>span{display:grid;width:36px;height:36px;flex:0 0 auto;place-items:center;border-radius:11px;color:var(--forest);background:var(--lime)}.stat-card svg{width:18px}.stat-card strong,.stat-card small{display:block}.stat-card strong{font-size:20px;line-height:1.1}.stat-card small{overflow:hidden;margin-top:4px;color:var(--muted);font-size:11px;text-overflow:ellipsis;white-space:nowrap}.next-win{position:relative;display:grid;min-height:340px;grid-template-columns:minmax(0,1.1fr) minmax(280px,.9fr);overflow:hidden;margin-bottom:18px;border-radius:27px;color:#fff;background:var(--forest);box-shadow:var(--shadow)}.next-copy{z-index:1;padding:clamp(32px,5vw,60px)}.lesson-kicker{margin:21px 0 8px;color:#b9cdc5;font-size:12px;font-weight:700}.next-win h2{max-width:580px;margin-bottom:12px;font-family:Georgia,serif;font-size:clamp(32px,4vw,50px);font-weight:500;line-height:1.04}.next-win p:not(.lesson-kicker){max-width:610px;margin-bottom:25px;color:#c8d8d2;line-height:1.55}.growth-art{display:flex;align-items:center;justify-content:center;min-width:0;padding:30px;background:radial-gradient(circle at 58% 40%,rgba(219,237,154,.13),transparent 45%)}.growth-art svg{width:100%;height:auto;max-width:390px}.dashboard-grid{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:18px;align-items:start}.panel{border:1px solid var(--line);border-radius:var(--radius);background:var(--card)}.path-panel{padding:28px}.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;margin-bottom:22px}.section-head h2{margin:7px 0 0;font-family:Georgia,serif;font-size:28px;font-weight:500}.path-sections{display:grid;gap:25px}.path-section h3{margin-bottom:10px;color:var(--muted);font-size:11px;letter-spacing:.06em}.path-chapters{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.path-chapter{display:grid;min-width:0;grid-template-columns:auto 1fr auto;gap:11px;align-items:center;padding:11px;border:1px solid transparent;border-radius:13px;background:#f5f5ef;text-align:left;cursor:pointer}.path-chapter:hover{border-color:#cbd0c6;background:#fff}.path-chapter>span:nth-child(2){min-width:0}.path-chapter b,.path-chapter small{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.path-chapter b{font-size:12px}.path-chapter small{margin-top:4px;color:var(--muted);font-size:10px}.path-chapter>svg{width:15px;color:#8b938f}.chapter-number{display:grid;width:33px;height:33px;flex:0 0 auto;place-items:center;border:1px solid #d6d8cf;border-radius:10px;color:var(--forest);background:var(--card);font-size:12px;font-weight:800}.chapter-number.complete{border-color:var(--lime);background:var(--lime)}.chapter-number svg{width:16px}.dashboard-aside{display:grid;gap:18px}.tip-card,.quick-card{padding:25px;border-radius:var(--radius)}.tip-card{background:var(--lime)}.tip-icon{display:grid;width:45px;height:45px;place-items:center;margin-bottom:48px;border-radius:50%;color:var(--lime);background:var(--forest)}.tip-card h2,.quick-card h2{margin:8px 0 10px;font-family:Georgia,serif;font-size:26px;font-weight:500}.tip-card p,.quick-card p{margin-bottom:0;color:#405048;font-size:13px;line-height:1.6}.quick-card{border:1px solid var(--line);background:#f0eee5}.quick-card p{margin-bottom:20px}.library-tools{display:grid;grid-template-columns:1fr minmax(190px,280px);gap:12px}.search-field{display:flex;align-items:center;gap:10px;padding:0 15px;border:1px solid var(--line);border-radius:13px;background:var(--card)}.search-field svg{width:18px;color:var(--muted)}.search-field input{width:100%;height:50px;border:0;outline:0;background:transparent}.select-field select{width:100%;height:52px;padding:0 14px;border:1px solid var(--line);border-radius:13px;color:var(--ink);background:var(--card)}.result-count{margin:18px 0 13px;color:var(--muted);font-size:12px}.chapter-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.chapter-card{display:flex;min-width:0;min-height:290px;flex-direction:column;padding:21px;border:1px solid var(--line);border-radius:18px;background:var(--card);text-align:left;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}.chapter-card:hover{transform:translateY(-3px);border-color:#b8c1ba;box-shadow:var(--shadow)}.chapter-card-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px}.tiny-status{padding:5px 8px;border-radius:999px;color:#4f5b55;background:var(--soft);font-size:10px;font-weight:750}.chapter-card h2{margin:7px 0 10px;font-family:Georgia,serif;font-size:23px;font-weight:500;line-height:1.1}.chapter-card p{display:-webkit-box;overflow:hidden;margin-bottom:20px;color:var(--muted);font-size:12px;line-height:1.55;-webkit-box-orient:vertical;-webkit-line-clamp:3}.chapter-card-foot{display:grid;grid-template-columns:1fr auto;gap:14px;align-items:center;margin-top:auto;color:var(--forest);font-size:11px;font-weight:750}.chapter-card-foot>span{display:flex;gap:5px;align-items:center}.chapter-card-foot svg{width:14px}.progress-bar{width:100%;height:6px;overflow:hidden;border-radius:99px;background:#e5e6df}.progress-bar span{display:block;height:100%;border-radius:inherit;background:var(--forest);transition:width .3s ease}.progress-bar.light{background:#ffffff24}.progress-bar.light span{background:var(--lime)}.chapter-hero{display:grid;grid-template-columns:auto 1fr;gap:23px;padding:clamp(25px,5vw,50px);border-radius:24px;color:#fff;background:var(--forest)}.chapter-number.large{width:54px;height:54px;border:0;border-radius:16px;background:var(--lime);font-size:18px}.chapter-hero .eyebrow{color:#b6cac1}.chapter-hero h1{max-width:700px;margin:9px 0 13px;font-family:Georgia,serif;font-size:clamp(34px,5vw,52px);font-weight:500;line-height:1.03}.chapter-hero p{max-width:720px;color:#c5d5ce;line-height:1.6}.chapter-meta{display:flex;flex-wrap:wrap;gap:13px 22px;color:#d7e1dc;font-size:12px}.chapter-meta span{display:flex;gap:7px;align-items:center}.chapter-meta svg{width:15px}.lesson-list{margin-top:18px;padding:28px;border:1px solid var(--line);border-radius:20px;background:var(--card)}.lesson-list .section-head>.progress-bar{width:140px}.lesson-row{display:grid;width:100%;grid-template-columns:auto 1fr auto auto;gap:15px;align-items:center;padding:18px 5px;border:0;border-top:1px solid #e9e9e2;background:transparent;text-align:left;cursor:pointer}.lesson-row:hover .lesson-row-copy b{color:var(--orange)}.lesson-index{display:grid;width:34px;height:34px;place-items:center;border-radius:50%;color:var(--muted);background:var(--soft);font-size:12px;font-weight:800}.lesson-index.done{color:var(--forest);background:var(--lime)}.lesson-index svg{width:16px}.lesson-row-copy{min-width:0}.lesson-row-copy b,.lesson-row-copy small{display:block}.lesson-row-copy b{margin-bottom:5px;font-size:14px}.lesson-row-copy small{color:var(--muted);font-size:11px;line-height:1.45}.lesson-time{display:flex;gap:6px;align-items:center;color:var(--muted);font-size:11px;white-space:nowrap}.lesson-time svg,.lesson-row>svg{width:15px}.source-strip{display:grid;grid-template-columns:auto 1fr auto;gap:13px;align-items:center;margin-top:15px;padding:15px 18px;border:1px solid var(--line);border-radius:14px;background:transparent;text-decoration:none}.source-strip b,.source-strip small{display:block}.source-strip small{overflow-wrap:anywhere;margin-top:3px;color:var(--muted);font-size:10px}.lesson-page{min-height:100vh;padding:26px clamp(22px,5vw,70px) 45px;background:#efeee7}.lesson-topbar{display:grid;width:min(980px,100%);grid-template-columns:1fr auto 1fr;align-items:center;margin:0 auto 19px}.lesson-topbar .back-button{margin:0;justify-self:start}.lesson-title-mini{text-align:center}.lesson-title-mini b,.lesson-title-mini span{display:block}.lesson-title-mini b{font-size:13px}.lesson-title-mini span{margin-top:3px;color:var(--muted);font-size:10px}.xp-chip{display:inline-flex;align-items:center;gap:5px;justify-self:end;padding:7px 10px;border-radius:999px;color:var(--forest);background:var(--lime);font-size:10px;font-weight:800}.xp-chip svg{width:13px}.lesson-progress{display:flex;width:min(720px,90%);gap:7px;margin:0 auto 26px}.lesson-progress span{height:4px;flex:1;border-radius:9px;background:#d1d2ca}.lesson-progress span.active{background:var(--forest)}.lesson-stage{width:min(830px,100%);margin:auto}.concept-card,.exercise-card,.review-card{padding:clamp(27px,5vw,55px);border:1px solid var(--line);border-radius:25px;background:var(--card);box-shadow:0 12px 40px #173c320d}.objective,.takeaway{display:flex;gap:12px;padding:14px 16px;border-radius:13px;font-size:12px;line-height:1.5}.objective{margin-bottom:35px;background:#f0f2df}.objective svg,.takeaway svg{width:18px;margin-top:1px;color:var(--forest)}.objective b,.takeaway b{display:block;margin-bottom:2px}.concept-label{color:var(--orange);font-size:10px;font-weight:850;letter-spacing:.13em;text-transform:uppercase}.concept-card h1,.exercise-card h1{max-width:690px;margin:10px 0 17px;font-family:Georgia,serif;font-size:clamp(31px,5vw,46px);font-weight:500;line-height:1.05}.concept-body{color:#4e5954;font-size:16px;line-height:1.72}.visual{margin:34px 0 4px}.flow-visual{display:flex;align-items:stretch;overflow-x:auto;padding-bottom:4px}.flow-item{display:flex;min-width:125px;flex:1;align-items:center;gap:8px;padding:18px 12px;border:1px solid var(--line);background:#f4f3ec}.flow-item:first-child{border-radius:14px 0 0 14px}.flow-item:last-child{border-radius:0 14px 14px 0}.flow-item+.flow-item{border-left:0}.flow-item span{display:grid;width:22px;height:22px;flex:0 0 auto;place-items:center;border-radius:50%;color:var(--forest);background:var(--lime);font-size:9px}.flow-item b{font-size:11px;line-height:1.3}.flow-item svg{width:14px;margin-left:auto;color:var(--orange)}.compare-visual{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));overflow:hidden;border:1px solid var(--line);border-radius:16px}.compare-visual>div{min-height:120px;padding:20px;background:#f2f1e9}.compare-visual>div:nth-child(2n){background:#e4ecc6}.compare-visual span,.compare-visual b{display:block}.compare-visual span{margin-bottom:24px;color:var(--orange);font-family:Georgia,serif;font-size:22px}.compare-visual b{font-size:13px;line-height:1.45}.formula-visual{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:12px;padding:28px;border-radius:16px;color:#fff;background:var(--forest)}.formula-visual span{display:flex;align-items:center;gap:12px}.formula-visual b{font-family:Georgia,serif;font-size:clamp(18px,3vw,26px);font-weight:500}.formula-visual i{color:var(--lime);font-size:22px;font-style:normal}.chips-visual{display:flex;flex-wrap:wrap;gap:9px;padding:22px;border:1px dashed #c8ccc3;border-radius:16px;background:#f4f3ed}.chips-visual span{padding:10px 14px;border-radius:999px;color:var(--forest);background:var(--lime);font-size:12px;font-weight:750}.takeaway{margin-top:28px;border-left:4px solid var(--orange);background:#fff1e8}.lesson-controls{display:flex;justify-content:space-between;gap:12px;margin-top:17px}.completion-actions{display:flex;gap:9px}.exercise-heading{display:flex;gap:17px;align-items:flex-start;margin-bottom:28px}.exercise-icon{display:grid;width:45px;height:45px;flex:0 0 auto;place-items:center;border-radius:14px;color:var(--forest);background:var(--lime)}.exercise-card h1{margin-bottom:0;font-size:clamp(26px,4vw,38px)}.options{display:grid;gap:9px}.option{display:grid;width:100%;grid-template-columns:auto 1fr auto;gap:13px;align-items:center;padding:14px 16px;border:1px solid var(--line);border-radius:13px;background:#f9f8f3;text-align:left;cursor:pointer}.option:hover:not(:disabled){border-color:#9aa99f}.option>span{display:grid;width:27px;height:27px;place-items:center;border:1px solid #cdd0c8;border-radius:8px;font-size:10px;font-weight:800}.option.selected{border-color:var(--forest);background:#edf1e4;box-shadow:inset 0 0 0 1px var(--forest)}.option.correct{border-color:#4f8d6e;background:#e7f3e9}.option.wrong{border-color:#c76647;background:#fff0ea}.option>svg{width:17px}.check-button{width:100%;margin-top:19px}.feedback{display:flex;justify-content:space-between;gap:22px;align-items:flex-end;margin-top:20px;padding:17px;border-radius:14px}.feedback.correct{border:1px solid #bad4bd;background:#edf7ec}.feedback.incorrect{border:1px solid #e9c2b1;background:#fff2ec}.feedback p{margin:5px 0 0;color:#4f5c56;font-size:12px;line-height:1.55}.feedback a{display:inline-flex;flex:0 0 auto;align-items:center;gap:5px;color:var(--forest);font-size:10px;font-weight:800}.feedback a svg{width:13px}.review-nav{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:14px}.review-nav button{width:34px;height:34px;border:1px solid var(--line);border-radius:9px;background:var(--card);font-size:11px;cursor:pointer}.review-nav button.active{color:#fff;border-color:var(--forest);background:var(--forest)}.review-card h2{margin:10px 0 25px;font-family:Georgia,serif;font-size:clamp(27px,4vw,39px);font-weight:500;line-height:1.12}.review-card>.button{width:100%;margin-top:18px}.progress-stats{margin-bottom:18px}.progress-layout{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(280px,.65fr);gap:18px}.progress-layout>.panel{padding:26px}.progress-chapters{display:grid;gap:1px}.progress-chapter{display:grid;grid-template-columns:auto 1fr 110px;gap:12px;align-items:center;padding:11px 0;border-top:1px solid #ebebe5}.progress-chapter button{min-width:0;padding:0;border:0;background:transparent;text-align:left;cursor:pointer}.progress-chapter b,.progress-chapter small{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.progress-chapter b{font-size:12px}.progress-chapter small{margin-top:3px;color:var(--muted);font-size:10px}.attempt-list{display:grid;gap:8px}.attempt{display:flex;gap:12px;align-items:center;padding:13px;border-radius:13px;background:#f2f2eb}.attempt-score{display:grid;width:53px;height:53px;place-items:center;border-radius:14px;color:var(--forest);background:var(--lime);font-size:12px;font-weight:850}.attempt b,.attempt small{display:block}.attempt b{font-size:12px}.attempt small{margin-top:4px;color:var(--muted);font-size:10px}.integrity-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px;margin-bottom:18px}.integrity-card{display:flex;gap:15px;padding:22px;border:1px solid #cbd9aa;border-radius:17px;background:#edf3d5}.integrity-card.warning{border-color:#edc7b3;background:#fff0e7}.integrity-card>svg{color:var(--forest)}.integrity-card h2{margin-bottom:6px;font-family:Georgia,serif;font-size:22px;font-weight:500}.integrity-card p{margin:0;color:#56625c;font-size:12px;line-height:1.55}.sources-panel{margin-bottom:18px;padding:28px}.source-list details{border-top:1px solid #e8e9e2}.source-list summary{display:grid;grid-template-columns:auto 1fr auto;gap:13px;align-items:center;padding:13px 2px;list-style:none;cursor:pointer}.source-list summary::-webkit-details-marker{display:none}.source-list summary b,.source-list summary small{display:block}.source-list summary b{font-size:13px}.source-list summary small{overflow-wrap:anywhere;margin-top:3px;color:var(--muted);font-size:9px}.source-list summary>svg{width:16px;transition:transform .2s ease}.source-list details[open] summary>svg{transform:rotate(90deg)}.source-detail{padding:0 48px 18px}.source-detail p{color:var(--muted);font-size:12px;line-height:1.55}.source-detail .button{min-height:38px}.research-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.research-grid>a{display:flex;min-height:190px;flex-direction:column;padding:18px;border:1px solid var(--line);border-radius:15px;background:#f8f7f1;text-decoration:none}.research-grid>a:hover{border-color:#aab6ae}.source-type{align-self:flex-start;padding:5px 8px;border-radius:99px;color:var(--forest);background:var(--lime);font-size:9px;font-weight:800}.research-grid h3{margin:17px 0 7px;font-size:15px}.research-grid p{color:var(--muted);font-size:11px;line-height:1.5}.research-grid a>span:last-child{display:flex;gap:5px;align-items:center;margin-top:auto;color:var(--forest);font-size:10px;font-weight:800}.research-grid svg{width:12px}.method-note{margin-top:17px;border-top:1px solid var(--line)}.method-note summary{padding:17px 0 5px;font-size:12px;font-weight:800;cursor:pointer}.method-note p{margin-top:12px;color:var(--muted);font-size:11px;line-height:1.55}.blueprint-list{display:flex;flex-wrap:wrap;gap:7px}.blueprint-list span{padding:7px 9px;border-radius:8px;background:var(--soft);font-size:10px}.independence-note{max-width:760px;margin:30px auto;color:var(--muted);font-size:11px;line-height:1.6;text-align:center}.empty-state{display:grid;min-height:310px;place-items:center;align-content:center;padding:35px;border:1px dashed #c8cbc3;border-radius:20px;background:#ffffff73;text-align:center}.empty-state>span{display:grid;width:50px;height:50px;place-items:center;margin-bottom:17px;border-radius:50%;color:var(--forest);background:var(--lime)}.empty-state h2{margin-bottom:7px;font-family:Georgia,serif;font-size:25px;font-weight:500}.empty-state p{max-width:430px;margin-bottom:17px;color:var(--muted);font-size:12px;line-height:1.55}.empty-state.compact{min-height:260px;border:0;background:transparent}.save-warning{position:sticky;top:0;z-index:10;padding:10px 22px;color:#67311f;border-bottom:1px solid #e7b79e;background:#fff0e6;font-size:12px;text-align:center}.persistence-loading{display:grid;min-height:100vh;margin:0;place-items:center;color:var(--muted);font-size:13px}.persistence-status{position:fixed;right:18px;bottom:18px;z-index:50;padding:7px 11px;border:1px solid #cdd8d2;border-radius:999px;color:#456057;background:#fffefaf0;box-shadow:0 5px 18px #173c3214;font-size:10px;font-weight:700;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.persistence-status.saving{color:#63572e;border-color:#ddd2a8}.persistence-status.unavailable{color:#7a3e29;border-color:#e5bca9}@media(max-width:1100px){.chapter-grid,.stat-row,.research-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.dashboard-grid{grid-template-columns:1fr}.dashboard-aside{grid-template-columns:repeat(2,minmax(0,1fr))}.tip-icon{margin-bottom:25px}.progress-layout{grid-template-columns:1fr}}@media(max-width:800px){body{padding-bottom:70px}.sidebar{display:none}.sidebar.is-open{display:flex;inset:67px 0 auto 0;width:100%;height:calc(100dvh - 67px);padding:25px}.sidebar.is-open>.brand{display:none}.sidebar.is-open .side-nav{margin-top:0}.app-main{margin:0}.mobile-header{position:sticky;top:0;z-index:30;display:flex;height:67px;align-items:center;justify-content:space-between;padding:0 18px;border-bottom:1px solid var(--line);background:#f6f5eff0;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.mobile-header .brand{color:var(--forest)}.mobile-nav{position:fixed;inset:auto 0 0;z-index:40;display:grid;grid-template-columns:repeat(6,minmax(0,1fr));padding:7px 5px max(7px,env(safe-area-inset-bottom));border-top:1px solid var(--line);background:#fffefaf7;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.mobile-nav button{display:flex;min-width:0;flex-direction:column;align-items:center;gap:3px;padding:4px 1px;border:0;color:#7b8580;background:transparent;font-size:clamp(7px,2.2vw,9px);cursor:pointer}.mobile-nav button.active{color:var(--forest);font-weight:800}.mobile-nav button.active svg{fill:var(--lime)}.mobile-nav svg{width:18px;height:18px}.page{padding:34px 18px 25px}.site-footer{padding:20px 20px 30px}.page-heading{align-items:flex-start}.page-heading h1{font-size:clamp(36px,11vw,52px)}.next-win{grid-template-columns:1fr}.growth-art{display:none}.path-chapters,.chapter-grid{grid-template-columns:1fr}.chapter-card{min-height:250px}.lesson-page{padding:23px 15px 30px}.lesson-topbar{grid-template-columns:1fr auto}.lesson-title-mini{display:none}.lesson-controls{position:sticky;bottom:73px;z-index:5;padding:10px 0;background:linear-gradient(transparent,#efeee7 25%)}.integrity-grid,.research-grid{grid-template-columns:1fr}.persistence-status{right:10px;bottom:78px}}@media(max-width:560px){.stat-row{grid-template-columns:repeat(2,minmax(0,1fr))}.stat-card{gap:8px;padding:12px}.stat-card>span{width:31px;height:31px}.stat-card strong{font-size:16px}.next-copy{padding:29px 24px}.next-win{min-height:0;border-radius:21px}.next-win h2{font-size:34px}.dashboard-aside{grid-template-columns:1fr}.path-panel,.lesson-list,.sources-panel,.progress-layout>.panel{padding:19px}.library-tools{grid-template-columns:1fr}.chapter-hero{grid-template-columns:1fr;padding:26px 22px}.chapter-hero h1{font-size:36px}.lesson-list .section-head>.progress-bar{display:none}.lesson-row{grid-template-columns:auto 1fr auto;gap:10px}.lesson-time{display:none}.lesson-row>svg{grid-column:3}.concept-card,.exercise-card,.review-card{padding:24px 19px;border-radius:20px}.flow-visual{flex-direction:column;overflow:visible}.flow-item{width:100%;min-width:0}.flow-item+.flow-item{border-top:0;border-left:1px solid var(--line)}.flow-item:first-child{border-radius:13px 13px 0 0}.flow-item:last-child{border-radius:0 0 13px 13px}.flow-item svg{transform:rotate(90deg)}.feedback{align-items:flex-start;flex-direction:column}.completion-actions{width:100%;flex-direction:column-reverse}.completion-actions .button{width:100%}.progress-chapter{grid-template-columns:auto 1fr}.progress-chapter>.progress-bar{grid-column:2}.source-detail{padding-left:0;padding-right:0}.section-head{align-items:flex-start}.section-head .text-button{white-space:nowrap}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition-duration:.01ms!important}}