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h2{font-size:1.35rem;letter-spacing:-.3px}.section-header>span{font-size:.8rem;color:#8c9da6}.review-item{border-radius:15px;background:#fff;border:1px solid #e0eaec;margin-bottom:12px;overflow:hidden}.review-item summary{display:flex;list-style:none;align-items:center;gap:15px;padding:21px;cursor:pointer;font-size:.9rem;line-height:1.6}.review-item summary::-webkit-details-marker{display:none}.review-item summary>span{color:#a4b1b9;font-size:.74rem}.review-item summary>strong{flex:1;font-weight:550}.review-item summary>.icon{width:17px;height:17px;color:#8da29b}.review-item[open] summary>.icon{transform:rotate(90deg)}.review-content{padding:0 23px 23px;color:#73898e;font-size:.84rem;line-height:1.7}.review-content>img{display:block;max-height:280px;max-width:100%;margin:0 auto 20px}.review-content .review-wrong{color:#9c753c;background:#fff7e9;padding:12px;border-radius:10px}.review-content .review-correct{color:#307152;background:#edf9f1;padding:12px;border-radius:10px}.review-content a{font-size:.74rem}dialog{border:1px solid #e3ece7;border-radius:24px;max-width:580px;width:calc(100% - 32px);padding:35px;color:#344c41;box-shadow:0 30px 100px #0c3b2533}dialog::backdrop{background:#0b2c2750;backdrop-filter:blur(4px)}dialog h2{margin:15px 0 20px;font-size:1.7rem;letter-spacing:-.5px}dialog h3{font-size:1rem;margin:23px 0 10px}dialog p{font-size:.84rem;line-height:1.8;color:#71857a}dialog a{text-decoration:underline;text-underline-offset:3px}.dialog-close{position:absolute;right:18px;top:18px;background:#f2f7f4;border-radius:50%;width:30px;height:30px;display:grid;place-items:center;color:#71917d}.dialog-close .icon{width:17px;height:17px}#toast{position:fixed;bottom:30px;left:50%;transform:translate(-50%,20px);opacity:0;transition:all .2s;background:#173f32;color:#fff;border-radius:13px;padding:14px 22px;max-width:calc(100% - 30px);z-index:100;font-size:.83rem;pointer-events:none;box-shadow:0 8px 22px #173f322b}#toast.visible{opacity:1;transform:translate(-50%,0)}
@media(min-width:1650px){.workspace{padding-left:65px;padding-right:65px}.sidebar{width:265px}.workspace{margin-left:265px}.ticket-card{min-height:118px;padding:22px}.ticket-grid{gap:20px}.status-token{height:48px;width:48px}.ticket-details>strong{font-size:1.15rem}.ticket-score{font-size:.85rem}.status-label{font-size:.74rem}.scene-caption{font-size:1rem}}
@media(max-width:1200px){.sidebar{width:211px}.brand{font-size:1.08rem;padding-left:18px;gap:9px}.brand small{font-size:.51rem}.workspace{margin-left:211px;padding:0 26px}.topbar{height:96px}.category-description{display:none}.ticket-grid{gap:13px}.ticket-card{padding:16px 13px;gap:10px}.status-token{height:35px;width:35px}.status-token .icon{width:18px;height:18px}.ticket-details>strong{font-size:.94rem}.ticket-meta{gap:5px}.status-label{font-size:.6rem}.card-arrow{display:none}.progress-card{width:265px;height:130px;padding-left:20px}.progress-card>div{width:133px}.progress-card img{width:137px;height:137px}.overview-heading .page-heading h1{font-size:2.6rem}.eyebrow{font-size:.58rem}.overview-heading .page-heading p{font-size:.85rem;max-width:300px}.quiz-layout{grid-template-columns:minmax(0,1fr) 193px;gap:19px}.question-card{padding:24px}.question-sidebar{padding:19px 14px}.question-nav{gap:5px}.question-nav button{height:29px}.question-title{font-size:1.22rem}.answer-option{font-size:.87rem}.exam-layout{grid-template-columns:minmax(0,1fr) 220px}.exam-rules{padding:27px}.exam-rule-heading h2{font-size:1.3rem}.intro-body{padding:30px}.intro-body h2{font-size:1.6rem}}
@media(max-width:980px){.sidebar{width:180px}.brand{font-size:.94rem;padding:30px 13px;gap:8px}.brand-mark{width:21px;height:44px;flex-shrink:0}.brand small{letter-spacing:1px;font-size:.5rem}.sidebar nav{padding:0 13px}.nav-item{font-size:.88rem;padding:15px 14px;gap:11px}.nav-item .icon{height:22px;width:22px}.side-bottom{padding:15px 12px}.side-bottom button,.side-bottom>a{font-size:.65rem}.side-bottom>span{font-size:.58rem}.workspace{margin-left:180px;padding:0 24px}.ticket-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.ticket-card{padding:18px;min-height:104px}.status-token{height:40px;width:40px}.overview-heading{align-items:flex-start;gap:15px}.overview-heading .page-heading h1{font-size:2.3rem}.overview-heading .page-heading p{max-width:275px;font-size:.82rem}.progress-card{width:225px}.progress-card img{right:-39px;opacity:.85}.progress-card>div{width:132px}.list-note{display:none}.filters button{padding:9px 10px}.mode-card{padding:22px}.mode-card h2{font-size:1.07rem}.mode-card p{font-size:.8rem}.mode-icon{height:38px;width:38px}.mode-card .button{padding:13px 14px;font-size:.78rem}.exam-layout{grid-template-columns:1fr}.exam-side{padding:0 12px 12px}.quiz-layout{grid-template-columns:minmax(0,1fr)}.question-sidebar{position:static;display:flex;align-items:center;gap:12px;flex-wrap:wrap;order:-1;padding:15px}.question-sidebar h2{display:none}.question-nav{grid-template-columns:repeat(10,1fr);width:100%;gap:7px}.question-nav button{height:29px;font-size:.7rem}.question-sidebar .quiz-progress,.nav-legend,.exam-side-note,.study-score{display:none}.question-eyebrow{font-size:.59rem}.page-heading h1{font-size:2.3rem}.mode-intro{grid-template-columns:1fr .65fr}.intro-body{padding:30px}.intro-stats{gap:20px}.intro-body h2{font-size:1.5rem}}
@media(max-width:720px){.sidebar{display:none}.workspace{margin-left:0;padding:0 20px}.topbar{height:auto;min-height:90px;padding:21px 0;gap:12px;flex-wrap:wrap}.mobile-brand{display:flex;align-items:center;gap:9px;margin-right:auto;font-size:1.1rem;font-weight:780;color:#075139;letter-spacing:-.6px}.signal-dot{height:14px;width:14px;border-radius:50%;background:linear-gradient(145deg,#5edb99,#00935a);box-shadow:0 3px 0 #007149,0 5px 9px #067c391a}.category-switch{border-radius:12px;padding:3px}.category-switch button{padding:8px 14px;min-width:59px;font-size:.83rem;border-radius:9px}.top-progress{display:none}.mobile-nav{position:fixed;bottom:0;left:0;right:0;display:flex;justify-content:space-around;padding:12px 9px max(12px,env(safe-area-inset-bottom));background:#ffffffed;backdrop-filter:blur(14px);z-index:10;border-top:1px solid #e1ece7;box-shadow:0 -4px 18px #15433106}.mobile-nav a{display:flex;align-items:center;gap:6px;flex-direction:column;color:#8a9ba8;font-size:.66rem;padding:0 17px;min-width:90px}.mobile-nav a .icon{width:22px;height:22px}.mobile-nav a.active{color:#00915a;font-weight:650}.overview-heading{display:block;margin:9px 0 22px}.overview-heading .page-heading{margin-bottom:20px}.overview-heading .page-heading .eyebrow{display:none}.overview-heading .page-heading h1{font-size:2rem;margin:0 0 10px;letter-spacing:-1px}.overview-heading .page-heading p{font-size:.82rem;max-width:none}.progress-card{width:100%;height:108px;padding:20px 24px;border-radius:18px}.progress-card>div{width:calc(100% - 92px)}.progress-card img{width:140px;height:140px;right:-3px;bottom:-13px;opacity:1}.progress-number{font-size:1.75rem}.progress-number small{font-size:.96rem}.progress-card p{display:inline-block;margin:0 0 0 10px;font-size:.75rem}.progress-card .progress-track{margin-top:14px;height:8px}.ticket-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:13px}.ticket-card{min-height:110px;padding:16px 14px;gap:10px;border-radius:16px;align-items:flex-start}.ticket-details>strong{font-size:.86rem;display:block;margin-top:3px}.ticket-meta{flex-direction:column;align-items:flex-start;gap:6px;margin-top:7px}.status-token{height:31px;width:31px}.status-token .icon{height:16px;width:16px}.ticket-score{font-size:.66rem}.success .ticket-score,.warning .ticket-score,.danger .ticket-score{font-size:.96rem}.score-outof{font-size:.73rem}.status-label{font-size:.59rem}.filters{flex-wrap:nowrap;gap:2px;overflow-x:auto;width:100%;padding-bottom:3px}.filters button{font-size:.73rem;padding:9px 10px}.list-toolbar{margin-bottom:16px}.mode-grid{grid-template-columns:1fr;gap:17px;margin-top:27px}.mode-card{padding:23px}.mode-card h2{font-size:1.18rem}.mode-card p{font-size:.85rem}.mode-card .button{font-size:.87rem}.page-footer{flex-direction:column;text-align:center;align-items:center;padding:25px 0 100px;margin:0;font-size:.67rem;gap:10px}main{padding-bottom:25px}.page-heading{margin-top:15px}.page-heading h1{font-size:2rem;letter-spacing:-.9px}.page-heading p{font-size:.85rem}.eyebrow{font-size:.6rem}.mode-intro{display:flex;flex-direction:column-reverse;min-height:0;position:relative;padding-top:0}.intro-art{height:180px;mask-image:linear-gradient(#000 70%,transparent);object-position:center 75%;opacity:.9}.intro-body{padding:20px 25px 30px}.intro-body .large-token{display:none}.intro-body h2{font-size:1.45rem;margin:0 0 12px}.intro-body p{font-size:.85rem}.intro-stats{justify-content:space-between;margin:25px 0}.button.large{font-size:.92rem;padding:15px 22px}.intro-body .button.large{width:100%}.exam-rules{padding:23px 20px}.exam-rule-heading .large-token{height:49px;width:49px;border-radius:15px;flex-shrink:0}.exam-rule-heading .large-token .icon{height:26px;width:26px}.exam-rule-heading{gap:13px}.exam-rule-heading h2{font-size:1.21rem}.exam-rule-heading p{font-size:.65rem;line-height:1.6}.rule-metrics{gap:15px;padding:23px 0}.rule-metrics strong{font-size:1.65rem}.rule-metrics>div>span{font-size:.64rem}.rules-list p{font-size:.81rem}.exam-note{font-size:.7rem;padding:14px}.exam-rules>.button{width:100%}.quiz-top{margin:3px 0 20px;gap:7px;flex-wrap:wrap}.back-button{font-size:.71rem}.quiz-title{font-size:.85rem;gap:7px;margin-left:auto}.timer{padding:9px 12px;font-size:1rem;margin-left:3px;gap:7px}.timer .icon{width:17px;height:17px}.quiz-count{width:100%;font-size:.68rem;text-align:right;margin-top:5px}.quiz-layout{gap:16px}.question-sidebar{padding:13px;border-radius:14px}.question-nav{gap:6px}.question-nav button{height:27px;border-radius:7px;font-size:.62rem}.question-card{padding:22px 18px;border-radius:20px}.question-title{font-size:1.08rem;line-height:1.6;margin-bottom:19px;letter-spacing:-.15px}.question-eyebrow{font-size:.56rem;margin-bottom:15px;letter-spacing:.4px}.question-illustration{padding:5px;border-radius:12px;margin-bottom:20px}.question-illustration img{max-height:250px}.answer-option{font-size:.83rem;gap:11px;padding:12px;line-height:1.6;min-height:62px}.answer-number{height:28px;width:28px;font-size:.72rem;border-radius:7px}.question-actions{gap:7px;margin-top:22px}.question-actions .button{font-size:.78rem;padding:13px 15px;gap:7px}.question-actions .button.ghost{padding:12px 0;font-size:.7rem}.question-actions .button.ghost .icon{width:16px;height:16px}.answer-feedback{font-size:.78rem;padding:15px}.answer-feedback a{font-size:.67rem}.extra-notice{font-size:.76rem;padding:13px 16px}.result-panel{padding:33px 20px;margin-top:15px}.result-panel h1{font-size:2rem}.result-panel>p{font-size:.83rem}.result-stats{gap:30px}.result-stats strong{font-size:1.8rem}.result-stats>div>span{font-size:.63rem}.result-actions{flex-direction:column}.result-actions .button{width:100%}.section-header h2{font-size:1.15rem}.review-item summary{padding:16px;font-size:.82rem;gap:10px}.review-content{padding:0 16px 17px;font-size:.78rem}.review-content a{font-size:.69rem}.review-item summary>span{font-size:.65rem}dialog{padding:28px 24px}#toast{bottom:95px;min-width:260px;text-align:center;font-size:.78rem}}
@media(max-width:380px){.workspace{padding:0 14px}.mobile-brand{font-size:1rem}.category-switch button{min-width:53px;padding:8px 12px}.ticket-grid{grid-template-columns:1fr}.ticket-card{align-items:center;min-height:86px;padding:16px}.ticket-details>strong{font-size:.96rem}.ticket-meta{flex-direction:row;align-items:center;gap:9px}.status-token{height:40px;width:40px}.ticket-score{font-size:.74rem}.card-arrow{display:block}.progress-card p{display:block;margin:4px 0 0}.progress-card .progress-track{margin-top:9px}.question-actions{flex-direction:column;align-items:stretch}.question-nav{gap:4px}.quiz-title{margin-left:5px}.quiz-top .timer{margin-left:auto}.quiz-top .back-button span{display:none}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

/* Keep study content legible on every screen. */
.answer-option{font-size:1rem}.answer-feedback,.rules-list p,.review-content,dialog p{font-size:.94rem}.question-actions .button{font-size:.88rem}.question-actions .button.ghost{font-size:.82rem}

/* Compact sidebar navigation. */
.sidebar .brand{padding-top:24px;padding-bottom:20px}
.sidebar .nav-item{padding-top:12px;padding-bottom:12px;margin-bottom:10px}
.sidebar{overflow-y:auto}


@media(max-width:980px){.sidebar .brand{padding-top:22px;padding-bottom:21px}}

/* Tisha accompanies practice without competing with question content. */

.mascot-intro{display:flex;flex-direction:column;justify-content:center;align-items:center;padding:28px 20px;background:radial-gradient(ellipse at center,#e8f5ea,transparent 70%)}
.mascot-intro img{display:block;width:100%;max-width:290px;object-fit:contain;mix-blend-mode:multiply}
.mascot-intro p{display:flex;flex-direction:column;gap:7px;text-align:center;margin:10px 0;color:#5d7869;font-size:.83rem;line-height:1.5}
.mascot-intro p strong{font-size:1rem;color:#315943}
.exam-side img.tisha-exam{width:210px;height:210px;object-fit:contain;mix-blend-mode:multiply;margin:0 auto 14px}
.tisha-result{display:block;width:132px;height:132px;object-fit:contain;margin:0 auto 14px;mix-blend-mode:multiply}

@media(max-width:980px){.mascot-intro{padding:24px 15px}}
@media(max-width:720px){.mascot-intro{padding:20px 20px 0}.mascot-intro img{height:150px;width:150px}.mascot-intro p{margin:4px 0 0;font-size:.75rem}.mascot-intro p strong{font-size:.9rem}.exam-side img.tisha-exam{width:160px;height:160px;margin-bottom:10px}.exam-side>p{max-width:280px;margin:0 auto}.tisha-result{width:112px;height:112px}}

.sidebar .side-bottom{margin-top:auto}

/* Official commentary appears in the lesson and mistake review. */
.explanation-card{margin-top:16px;padding:18px 20px;border:1px solid #dbeae1;border-radius:14px;background:#fbfefc;color:#385247;text-align:left}
.explanation-card h3{display:flex;align-items:center;gap:8px;margin:0 0 10px;font-size:.84rem;font-weight:700;color:#397658;letter-spacing:.1px}
.explanation-card h3 .icon{width:18px;height:18px;flex-shrink:0}
.explanation-card p,.answer-feedback .explanation-card p{margin:0;font-size:.96rem;line-height:1.8;color:#385247;overflow-wrap:anywhere}
@media(max-width:720px){.explanation-card{padding:16px}.explanation-card p,.answer-feedback .explanation-card p{font-size:.92rem;line-height:1.75}}

/* Category-specific transport rises above the progress plaque. */
.progress-card{overflow:visible;isolation:auto}
.progress-card>div{width:calc(100% - 172px)}
.progress-card img.progress-transport{width:184px;height:184px;object-fit:contain;right:-15px;bottom:-6px;mix-blend-mode:multiply;opacity:1;pointer-events:none;user-select:none;z-index:2}
@media(max-width:1200px){.progress-card>div{width:calc(100% - 146px)}.progress-card img.progress-transport{width:160px;height:160px;right:-18px;bottom:-5px}}
@media(min-width:721px) and (max-width:980px){.progress-card{width:240px}.progress-card>div{width:100px}.progress-card img.progress-transport{width:146px;height:168px;right:-16px;bottom:-4px}.progress-card p{font-size:.74rem}}
@media(max-width:720px){.overview-heading .page-heading{margin-bottom:34px}.progress-card>div{width:calc(100% - 116px)}.progress-card img.progress-transport{width:141px;height:141px;right:-12px;bottom:-4px}.progress-card p{display:block;margin:4px 0 0}.progress-card .progress-track{margin-top:12px}}

/* Crawlable project information links. */
.page-footer>a{color:#587769;font-size:inherit}.page-footer>a:hover,.side-bottom>a:hover{text-decoration:underline;text-underline-offset:4px}.page-footer>a:first-of-type{margin-left:auto}@media(max-width:720px){.page-footer>a:first-of-type{margin-left:0}}

/* Four mode cards share a balanced grid; each mascot has reserved space. */
.mode-grid{grid-template-columns:repeat(2,minmax(0,1fr));margin-top:72px;gap:64px 28px;align-items:stretch}
.mode-card.with-mascot{position:relative;display:flex;flex-direction:column;min-width:0;min-height:0;overflow:visible;padding:26px}
.with-mascot .mode-card-heading{display:block;max-width:calc(100% - 146px);min-height:96px}
.with-mascot .mode-card-heading>div{min-width:0}
.with-mascot .mode-icon{display:none}
.with-mascot h2{line-height:1.3;overflow-wrap:break-word}
.with-mascot p{max-width:none;min-height:0;margin:14px 0 22px}
.mode-mascot{position:absolute;width:160px;height:174px;object-fit:contain;right:12px;top:-40px;pointer-events:none}
.with-mascot .button{position:relative;z-index:1;width:100%;min-width:0;margin-top:auto;white-space:normal;text-align:center}
.mode-card.rules{background:linear-gradient(125deg,#fffef7,#eef8ed)}
.nav-item small{font-size:9px;letter-spacing:.04em;margin-left:auto;color:#648363}.page-footer{flex-wrap:wrap;row-gap:12px}.tisha-exam{mix-blend-mode:normal}
@media(max-width:980px){.mode-grid{grid-template-columns:1fr}}
@media(max-width:720px){
 .mode-grid{margin-top:60px;row-gap:56px}
 .mode-card.with-mascot{padding:22px}
 .with-mascot .mode-card-heading{max-width:calc(100% - 124px);min-height:92px}
 .mode-mascot{width:140px;height:155px;right:8px;top:-32px}
 .with-mascot p{margin:14px 0 20px}
 .mobile-nav a{min-width:0!important;flex:1;padding:9px 4px!important;font-size:10px!important}
 .mobile-nav a span{text-align:center;line-height:1.25}
}

.learn-index-links{display:flex;flex-wrap:wrap;justify-content:center;gap:10px 20px;margin:24px auto;max-width:900px}.boot>p{max-width:860px;margin-left:auto;margin-right:auto}

/* Ticket completion uses the latest result: no errors, one error, or multiple errors. */
.ticket-card.success{background:linear-gradient(150deg,#f1fbf5,#fff);border-color:#b8e1c9}
.ticket-card.warning{background:linear-gradient(150deg,#fff8df,#fffdf3);border-color:#edcf75;box-shadow:0 4px 1px #ecdfb1,0 9px 24px #86631809}
.ticket-card.danger{background:linear-gradient(150deg,#fff0ed,#fff9f8);border-color:#edb2a9;box-shadow:0 4px 1px #ead0cb,0 9px 24px #8d342509}
.ticket-card.warning:hover{border-color:#d7ae39}
.ticket-card.danger:hover{border-color:#d57b6e}
.ticket-card.danger .status-token{background:linear-gradient(135deg,#f88b78,#d74738 80%);color:#fff;box-shadow:inset 1px 1px 2px #ffd6cc,0 4px 0 #b9372a,0 7px 10px #9d332321}
.ticket-card.danger .ticket-score{font-size:1.06rem;color:#aa3329;font-weight:750}
.ticket-card.warning .ticket-score{color:#8f620b}
.ticket-card.danger .status-label{background:#ffe0da;color:#a73126;padding:4px 6px;border-radius:6px}
@media(max-width:720px){.ticket-card.danger .ticket-score{font-size:.96rem}}

/* A saved ticket always offers an explicit choice before replacing its answers. */
.ticket-resume-icon{display:grid;place-items:center;width:56px;height:56px;border-radius:18px;background:#e8f6ec;color:#25965a;margin-bottom:22px}
.ticket-resume-icon .icon{width:28px;height:28px}
.ticket-resume h2{margin:12px 0 14px;color:#244b36}
.ticket-resume p{margin:0;font-size:.94rem;line-height:1.65}
.ticket-resume p strong{color:#345b43}
.ticket-resume p.ticket-resume-note{margin-top:14px;padding:13px 16px;border-radius:14px;background:#f4f7f4;font-size:.8rem}
.ticket-resume-actions{display:flex;gap:12px;margin-top:26px}
.ticket-resume-actions .button{flex:1;justify-content:center;white-space:nowrap}
@media(max-width:480px){.ticket-resume-actions{flex-direction:column;gap:10px}.ticket-resume-actions .button{width:100%}.ticket-resume h2{font-size:1.5rem}}