:root{font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#17312b;background:#f6f7f4;font-synthesis:none}*{box-sizing:border-box}body{margin:0;min-height:100vh}button{font:inherit}button:focus-visible,a:focus-visible{outline:3px solid #d49242;outline-offset:3px}.app-shell{min-height:100vh;display:flex;flex-direction:column}.topbar{height:78px;padding:0 clamp(22px,5vw,76px);display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #e5e9e1;background:#fff}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:#18342d;font-size:23px;font-weight:760;letter-spacing:-.06em}.brand-accent{color:#e18f37}.brand-mark{height:32px;width:32px;border-radius:10px;background:#173e34;display:flex;align-items:center;justify-content:center;gap:4px;transform:rotate(-8deg)}.brand-mark span{width:4px;height:17px;background:#f9f7ed;border-radius:5px;transform:rotate(25deg)}.brand-mark 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strong{display:block;font-size:15px}.floating-card small{display:block;color:#85918c;margin-top:5px}.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin:75px 0 21px}.section-head h2{font-size:30px;letter-spacing:-.045em;margin:7px 0 0}.section-head p{font-size:14px;color:#7f9088;margin:0 0 4px}.mode-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.mode-card{background:white;border:1px solid #e7eae4;text-align:left;border-radius:18px;padding:24px;min-height:177px;cursor:pointer;transition:transform .18s,border-color .18s,box-shadow .18s}.mode-card:hover{transform:translateY(-4px);border-color:#afcbb8;box-shadow:0 15px 32px #183b2412}.mode-symbol{display:grid;place-items:center;width:40px;height:40px;border-radius:11px;background:#e8eee6;color:#2e7554;font-size:21px;margin-bottom:23px}.mode-card:nth-child(2) .mode-symbol{background:#f9ecdc;color:#c3772e}.mode-card:nth-child(3) .mode-symbol{background:#e7ebf5;color:#6474a5}.mode-card strong{font-size:18px;letter-spacing:-.03em}.mode-card p{margin:9px 0 0;font-size:13px;line-height:1.5;color:#81918a}.practice{padding:36px 0 70px;max-width:850px;margin:auto}.back-link{border:0;background:none;color:#6b8576;font-weight:650;cursor:pointer;padding:4px 0;margin-bottom:29px}.back-link:hover{color:#244b3b}.progress-top{display:flex;justify-content:space-between;align-items:end;gap:15px;margin-bottom:14px}.progress-top h1{font-size:29px;letter-spacing:-.05em;margin:8px 0 0}.counter{color:#779083;font-size:14px;font-weight:700}.progress-track{height:7px;background:#e2e9e1;border-radius:99px;overflow:hidden;margin-bottom:26px}.progress-fill{height:100%;background:#e79a41;border-radius:99px;transition:width .25s}.question-card{background:white;border:1px solid #e7eae3;border-radius:24px;box-shadow:0 20px 50px #1b3f2910;overflow:hidden}.question-media{display:block;width:100%;max-height:410px;object-fit:contain;background:#e5e8e2}.question-body{padding:clamp(22px,5vw,39px)}.question-label{color:#a09a88;font-size:11px;font-weight:800;letter-spacing:.13em;text-transform:uppercase}.question-body h2{font-size:clamp(22px,3vw,31px);line-height:1.25;letter-spacing:-.04em;margin:10px 0 8px}.question-helper{color:#829087;font-size:13px;margin:0 0 27px}.option-list{display:grid;gap:10px}.option{width:100%;border:1.5px solid #e3e8e1;border-radius:12px;background:#fff;color:#29483b;padding:14px 17px;display:flex;gap:15px;align-items:center;text-align:left;cursor:pointer;transition:border-color .15s,background .15s}.option:hover:not(:disabled){border-color:#8eae9a}.option[aria-pressed="true"]{border-color:#44765b;background:#eef5ef}.option:disabled{cursor:default}.option-key{flex:none;display:grid;place-items:center;width:26px;height:26px;border-radius:7px;background:#eef2ea;font-size:12px;font-weight:800}.option.correct{border-color:#7eae88;background:#edf7ed}.option.incorrect{border-color:#dca1a1;background:#fff1ef}.option.correct .option-key{background:#cde9d0;color:#246d3a}.option.incorrect .option-key{background:#f6d4ce;color:#a8392a}.question-actions{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-top:27px}.action-hint{font-size:12px;color:#98a39b}.feedback{margin-top:22px;padding:15px 18px;border-radius:12px;font-size:14px;line-height:1.5}.feedback.good{background:#eaf5eb;color:#2c7244}.feedback.bad{background:#fff1e9;color:#a55432}.result{padding:75px 0;max-width:860px;margin:auto}.result-card{background:white;border:1px solid #e7eae3;border-radius:26px;padding:clamp(28px,5vw,55px);box-shadow:0 25px 65px #1b3f2910}.result h1{font-size:clamp(40px,5vw,60px);letter-spacing:-.06em;line-height:1.05;margin:17px 0}.result p{color:#74877b;line-height:1.6}.score-row{display:grid;grid-template-columns:1fr 1fr;gap:13px;margin:35px 0}.score-cell{background:#f4f7f2;padding:23px;border-radius:15px}.score-cell strong{font-size:35px;letter-spacing:-.05em;display:block}.score-cell span{font-size:13px;color:#788c7e}.review-list{border-top:1px solid #e9eee8;margin:30px 0;padding-top:25px}.review-list h2{font-size:17px;margin:0 0 15px}.review-item{padding:12px 0;border-bottom:1px solid #eef1ec;display:flex;gap:12px;align-items:start;color:#536a59;font-size:13px;line-height:1.4}.review-dot{width:8px;height:8px;flex:none;border-radius:50%;background:#eaa36e;margin-top:4px}.review-dot.pass{background:#79b68a}.error-state,.loading-state{text-align:center;margin:100px auto;color:#60796b}.error-state h1{color:#1c3d31}.footer{padding:20px clamp(22px,5vw,76px);border-top:1px solid #e3e8e1;display:flex;justify-content:space-between;gap:20px;color:#9baa9e;font-size:11px}@media(max-width:770px){.topbar{height:68px}.edition{display:none}.home{padding:46px 0 60px}.home-grid{grid-template-columns:1fr}.visual-card{min-height:245px;order:-1}.hero h1{font-size:clamp(43px,9vw,66px)}.section-head{margin-top:52px}.mode-grid{grid-template-columns:1fr}.mode-card{min-height:0;padding:21px}.mode-symbol{margin-bottom:14px}.footer{flex-direction:column}.question-actions{align-items:stretch;flex-direction:column}.question-actions .primary-button{width:100%}.action-hint{order:1;text-align:center}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

/* Mock exam card and theme grid */
.exam-card{margin-top:16px;background:#173e34;color:#f4f7f2;border-radius:22px;padding:clamp(24px,4vw,36px);display:flex;justify-content:space-between;align-items:center;gap:24px}.exam-card .eyebrow{color:#a9d4b8}.exam-card h2{font-size:clamp(22px,3vw,30px);letter-spacing:-.045em;margin:8px 0 6px}.exam-card p{margin:0;color:#c6d8cd;font-size:14px;line-height:1.5}.exam-card .primary-button{background:#e79a41;color:#1d2f28;flex:none}.exam-card .primary-button:hover{background:#efa957}
.theme-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}.theme-card{background:#fff;border:1px solid #e7eae4;border-radius:16px;padding:18px;text-align:left;cursor:pointer;display:flex;flex-direction:column;gap:6px;min-height:150px;color:#17312b;transition:transform .18s,border-color .18s,box-shadow .18s}.theme-card:hover:not(:disabled){transform:translateY(-3px);border-color:#afcbb8;box-shadow:0 12px 26px #183b2412}.theme-card:disabled{cursor:not-allowed;opacity:.55;background:#f9faf8}.theme-number{font-size:11px;font-weight:800;color:#a09a88;letter-spacing:.1em}.theme-card strong{font-size:15px;line-height:1.3;letter-spacing:-.02em;flex:1}.theme-count{font-size:12px;color:#6f8379}.theme-last{font-size:12px;font-weight:700;color:#c3772e}
/* Exam screens */
.pilot-notice{margin:18px 0;padding:13px 16px;border-radius:12px;background:#fdf1e2;color:#9a5a1d;font-size:14px;line-height:1.5}.rules-list{margin:22px 0 30px;padding-left:20px;color:#536a59;line-height:1.7}.timer-row{display:flex;align-items:center;gap:14px;margin-bottom:26px}.timer-track{flex:1;height:9px;background:#e2e9e1;border-radius:99px;overflow:hidden}.timer-fill{height:100%;width:100%;background:#44765b;border-radius:99px}.timer-fill.urgent{background:#d4583c}.timer-seconds{min-width:44px;text-align:right;font-weight:800;font-variant-numeric:tabular-nums;color:#29483b}.indicative{font-size:.35em;letter-spacing:.02em;vertical-align:middle;padding:4px 10px;border-radius:99px;background:#fdf1e2;color:#9a5a1d}.theme-result{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(80px,1fr) auto;gap:14px;align-items:center;padding:10px 0;border-bottom:1px solid #eef1ec;font-size:14px;color:#3f5a4c}.theme-bar{height:8px;background:#e9eee7;border-radius:99px;overflow:hidden}.theme-bar span{display:block;height:100%;background:#61a77a;border-radius:99px}
@media(max-width:1000px){.theme-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:770px){.exam-card{flex-direction:column;align-items:stretch}.theme-grid{grid-template-columns:repeat(2,1fr)}.theme-card{min-height:0}.theme-result{grid-template-columns:1fr auto}.theme-bar{grid-column:1/-1;order:3}}
@media(max-width:420px){.theme-grid{grid-template-columns:1fr}}
/* Content foundation: answer banner, video, explanations */
.answer-banner{display:inline-block;margin:10px 0 0;padding:4px 10px;border-radius:99px;background:#e7ebf5;color:#4a5a8c;font-size:12px;font-weight:750;letter-spacing:.02em}.video-wrap{position:relative;background:#0f1f1a}.question-video{background:#0f1f1a}.video-play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%)}.explanation{margin-top:14px;padding:14px 16px;border-radius:12px;background:#f4f7f2;color:#3f5a4c;font-size:14px;line-height:1.55}.explanation p{margin:0}.explanation p+p{margin-top:8px}.legal-refs{font-size:12px;color:#6f8379}.legal-refs a{color:#2e7554;font-weight:650}
.mode-card:disabled{cursor:not-allowed;opacity:.55;transform:none;box-shadow:none}