:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;color:#26343b;background:#f6f7f7;--paper:#fff;--ink:#26343b;--muted:#68777f;--line:#dce2e4;--navy:#182b35;--accent:#ab8758;--pale:#f4eee5;--good:#285c49;--bad:#a4443b}*{box-sizing:border-box}body{margin:0;min-height:100vh}button{font:inherit;cursor:pointer}a{color:inherit;text-decoration:none}.bar{background:var(--navy);color:#fff;border-bottom:3px solid var(--accent)}.bar-inner{max-width:1080px;margin:auto;padding:15px 24px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:14px}.brand strong{display:block;font-family:Georgia,serif;font-size:1.25rem;line-height:1.15;font-weight:normal}.brand small{display:block;color:#c4ced1;font-size:.84rem;margin-top:4px}.seal{border:1px solid #bd9c69;color:#e6cb9c;border-radius:5px;width:42px;height:42px;display:grid;place-items:center;font:1.55rem Georgia,serif;position:relative}.seal span{font:700 .65rem system-ui;position:absolute;bottom:3px;right:3px}.theme{border:1px solid #60717b;border-radius:6px;background:transparent;color:white;padding:9px 12px;font-size:.88rem}.container{max-width:1080px;margin:0 auto;padding:34px 24px 72px;min-height:calc(100vh - 145px)}h1,h2,h3,p{margin-top:0}h1{font:normal 2rem/1.15 Georgia,serif;letter-spacing:-.025em;margin-bottom:7px}h2{font:normal 1.4rem/1.2 Georgia,serif}h3{font-size:1rem}.eyebrow{color:var(--accent);font-size:.76rem;font-weight:800;letter-spacing:.13em;text-transform:uppercase;margin-bottom:12px}.intro{border-bottom:1px solid var(--line);padding-bottom:25px;margin-bottom:23px}.muted{color:var(--muted)}.intro p{font-size:1rem;margin:0}.section-title{font-size:.8rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);font-weight:800;margin-bottom:15px}.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.card,.panel,.topic-row{background:var(--paper);border:1px solid var(--line);border-radius:9px}.card{padding:20px;display:flex;flex-direction:column;min-height:184px}.card h2{margin:0 0 8px}.card p{margin:0;color:var(--muted);font-size:.93rem}.card-bottom{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:23px}.meta{font-size:.88rem;color:var(--muted)}.button,.secondary{display:inline-flex;align-items:center;justify-content:center;min-height:44px;border-radius:6px;padding:10px 17px;font-weight:700;font-size:.92rem;border:1px solid var(--navy)}.button{background:var(--navy);color:#fff}.button:disabled{opacity:.5;cursor:not-allowed}.secondary{background:var(--paper);color:var(--ink);border-color:var(--line)}.button:hover{background:#304753}.secondary:hover,.topic-row:hover{border-color:var(--accent)}.crumb{display:inline-block;color:var(--muted);font-size:.9rem;margin-bottom:23px}.crumb:hover{text-decoration:underline}.heading-line{display:flex;align-items:flex-end;justify-content:space-between;gap:15px}.heading-line p{margin:0 0 4px}.topics{display:grid;gap:8px}.topic-row{padding:15px 18px;display:flex;align-items:center;gap:16px;min-height:69px}.topic-no{font:1.1rem Georgia,serif;color:var(--accent);min-width:28px}.topic-name{font-weight:650;flex:1}.state{font-size:.86rem;color:var(--muted);white-space:nowrap}.chev{color:var(--accent);font-size:1.4rem}.empty{padding:32px;background:var(--paper);border:1px dashed var(--line);border-radius:9px;color:var(--muted)}.stack{display:grid;gap:17px}.panel{padding:24px}.panel h2{margin-bottom:17px}.summary-list{padding-left:20px;line-height:1.65}.summary-list li+li{margin-top:8px}.note{background:var(--pale);color:var(--ink);border-left:3px solid var(--accent);padding:15px 17px;border-radius:4px;line-height:1.5}.question-meta{display:flex;flex-wrap:wrap;gap:8px 19px;color:var(--muted);font-size:.88rem;border-bottom:1px solid var(--line);padding-bottom:16px;margin-bottom:22px}.question{font-size:1.12rem;font-weight:650;line-height:1.5}.choices{display:grid;gap:9px;margin:19px 0}.choice{display:flex;gap:13px;align-items:center;border:1px solid var(--line);border-radius:7px;padding:14px;cursor:pointer;line-height:1.45}.choice:has(input:checked){border-color:var(--accent);background:var(--pale)}.choice input{accent-color:var(--navy);width:19px;height:19px;flex:none}.feedback{margin:18px 0;padding:17px;border-radius:6px;background:#edf5f0;border-left:3px solid var(--good);line-height:1.5}.feedback.wrong{background:#faefed;border-color:var(--bad)}.feedback strong{display:block;color:var(--good);margin-bottom:5px}.feedback.wrong strong{color:var(--bad)}.feedback p{margin:6px 0}.actions{display:flex;flex-wrap:wrap;gap:9px;margin-top:19px}.result{font:normal 1.7rem Georgia,serif;margin:12px 0}.footer{text-align:center;padding:20px;color:var(--muted);font-size:.8rem;border-top:1px solid var(--line)}:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
html[data-theme=dark]{color-scheme:dark;background:#111b21;color:#e6ebec;--paper:#1b292f;--ink:#e6ebec;--muted:#aab9bf;--line:#394a51;--navy:#344e5a;--accent:#d4ad74;--pale:#30332d;--good:#9fd8b9;--bad:#eda59d}html[data-theme=dark] .bar{background:#0d181d}html[data-theme=dark] .button{background:#d4ad74;color:#111b21;border-color:#d4ad74}html[data-theme=dark] .feedback{background:#203b32}html[data-theme=dark] .feedback.wrong{background:#412b2a}@media(max-width:640px){.bar-inner{padding:13px 17px}.brand strong{font-size:1.04rem}.seal{width:37px;height:37px}.theme span{display:none}.container{padding:26px 17px 55px}h1{font-size:1.7rem}.grid{grid-template-columns:1fr}.card{min-height:155px}.panel{padding:19px}.topic-row{padding:13px;gap:10px}.state{font-size:.78rem}.heading-line{display:block}.button,.secondary{min-height:48px}.actions>*{flex:1}.question-meta{gap:7px 14px}}

.brand-logo{display:block;width:150px;height:150px;object-fit:contain;flex:none}.brand-context{font-size:1rem;font-weight:650;color:#e9f1ff;white-space:nowrap}.brand{gap:18px}@media(max-width:640px){.brand-logo{width:90px;height:90px}.brand-context{font-size:.83rem;white-space:normal}.brand{gap:8px}.bar-inner{gap:8px}}

/* EstudaUni: a marca tem letras azul-marinho e precisa de superfície clara. */
.bar,html[data-theme=dark] .bar{background:#fff;color:#14243a;border-bottom:3px solid #247de7}.bar-inner{padding-top:8px;padding-bottom:8px}.brand-logo{width:195px;height:195px}.brand-context{color:#203c67}.theme{color:#183454;border-color:#b9c8da;background:#fff}.theme:hover{background:#edf5ff}html[data-theme=dark] .brand-context{color:#203c67}html[data-theme=dark] .theme{color:#183454;border-color:#b9c8da;background:#fff}@media(max-width:640px){.brand-logo{width:126px;height:126px}.brand-context{font-size:.8rem}.bar-inner{padding-top:5px;padding-bottom:5px}}

/* EstudaUni: leitura clara, marca em destaque e ações por matéria. */
:root{--navy:#1459b7;--accent:#2563eb;--pale:#edf4ff;--line:#dce5f1;--ink:#172d49;--muted:#5d7089;background:#f2f6fc;color:var(--ink)}
.bar{box-shadow:0 4px 24px #1d4c8610}.bar-inner{max-width:1180px}.brand-logo{width:235px;height:200px}.brand-context{padding-left:22px;border-left:1px solid #dce5f1;font-size:1.1rem}.container{max-width:1140px;padding-top:32px}h1,h2,h3,.brand strong{font-family:Inter,ui-sans-serif,system-ui,sans-serif}h1{font-size:2.1rem;font-weight:750;letter-spacing:-.04em}h2{font-size:1.25rem;font-weight:700;line-height:1.4}.intro{padding:0 0 26px;border-color:var(--line)}.eyebrow,.section-title{font-size:.875rem;letter-spacing:.08em}.grid{gap:18px}.card{padding:25px;border-radius:16px;border-top:4px solid #2875db;box-shadow:0 5px 18px #254d8310;min-height:200px}.card:nth-child(even){border-top-color:#7455d8}.card h2{margin-bottom:8px}.card-bottom{padding-top:22px}.meta{line-height:1.8}.button{background:#175dbe;border-color:#175dbe;border-radius:9px}.button:hover{background:#104b9c}.secondary{border-radius:9px}.panel{border-radius:15px;padding:28px;box-shadow:0 4px 16px #254d8308}.summary-list{font-size:1.0625rem;line-height:1.85}.topic-row{border-radius:11px;padding:19px;transition:background .15s}.topic-row:hover{background:var(--pale)}.topic-no{font:700 1rem system-ui;color:var(--accent)}.topic-name{line-height:1.5}.study-actions{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:32px}.study-action{display:flex;flex-direction:column;gap:10px;padding:24px;background:#e8f1ff;border:1px solid #c2d8fa;border-radius:14px;color:#163e78}.study-action.practice{background:#efebff;border-color:#d7ccfa;color:#473089}.study-action:hover{box-shadow:0 5px 18px #254d8318}.study-action strong{font-size:1.2rem}.study-action>span:last-child{font-size:.9375rem;line-height:1.5}.action-kicker{font-size:.875rem;font-weight:750;letter-spacing:.08em}.text-link{font-weight:650;color:var(--accent)}.quiz-progress{width:100%;height:8px;accent-color:#2563eb;margin:0 0 22px}.topic-label{font-size:.9375rem;font-weight:650;color:var(--accent)}.choice{padding:17px;background:var(--paper);font-size:1rem}.question{font-size:1.2rem}.footer{font-size:.875rem}.theme{min-height:44px}
html[data-theme=dark]{--paper:#17263c;--ink:#ecf2fb;--muted:#b3c2d7;--line:#344860;--navy:#2a66b8;--accent:#8dbbff;--pale:#213652;background:#0c1727;color:var(--ink)}html[data-theme=dark] .button{background:#8dbbff;border-color:#8dbbff;color:#102340}html[data-theme=dark] .study-action{background:#183554;border-color:#31567f;color:#d8eaff}html[data-theme=dark] .study-action.practice{background:#30274c;border-color:#544273;color:#eee4ff}
@media(max-width:640px){.brand-logo{width:158px;height:145px}.brand-context{padding-left:10px;font-size:.875rem;max-width:108px}.bar-inner{padding:8px 14px}.container{padding-top:25px}h1{font-size:1.75rem}.study-actions{grid-template-columns:1fr;gap:12px}.study-action{padding:21px}.panel{padding:21px}.card{padding:22px}.topic-row{flex-wrap:wrap;gap:10px}.topic-name{flex-basis:65%}.state{font-size:.875rem;margin-left:38px}.chev{margin-left:auto}.brand{gap:8px}.theme{padding:9px}.summary-list{padding-left:19px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}

/* Abertura clara e marca sobre branco em todos os temas. */
:root,html[data-theme=light]{color-scheme:light;--paper:#ffffff;--ink:#18314d;--muted:#526780;--line:#dde7f2;--pale:#f0f7ff;background:#f8fbff;color:var(--ink)}
html[data-theme=light] body{background:linear-gradient(180deg,#fff 0,#f5f9ff 480px,#fafcff 100%)}
.bar,html[data-theme=dark] .bar{background:#ffffff!important;border-bottom:1px solid #dce8f7;box-shadow:0 5px 22px #2965ac0c}
.brand-logo{width:280px;height:210px;object-fit:contain;background:#fff;opacity:1;filter:none}.brand-context{color:#25486c}.bar-inner{padding-top:4px;padding-bottom:4px}.card,.panel{box-shadow:0 6px 24px #24589108}.study-action{background:#f0f7ff}.study-action.practice{background:#f6f3ff}
@media(max-width:640px){.bar-inner{flex-wrap:wrap;justify-content:center;position:relative;padding:8px 16px 14px}.brand{flex-direction:column;gap:0;width:100%}.brand-logo{width:225px;height:178px}.brand-context{border:0;max-width:none;padding:0;font-size:.9375rem}.theme{position:absolute;right:14px;top:14px;background:#fff}.container{padding-top:24px}}

/* Tema claro permanente em todos os dispositivos. */
:root{color-scheme:only light!important}html,body{background:#f8fbff;color:#18314d}body{background:linear-gradient(180deg,#fff,#f5f9ff 480px,#fafcff)}.bar{background:#fff!important}.brand-logo{background:#fff}.card,.panel,.topic-row,.choice{background:#fff;color:#18314d}