:root{--navy:#0e223e;--navy2:#183b61;--gold:#d8aa4a;--gold-dark:#ad873a;--ink:#192940;--muted:#6e7b8c;--line:#e0e6ed;--bg:#f5f7fb;--green:#2f8068;--purple:#8150a7;--red:#bb585c;--shadow:0 12px 26px rgba(17,35,58,.07)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans Devanagari","Mangal",Arial,sans-serif;line-height:1.65;-webkit-font-smoothing:antialiased}button,input,select{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.42}button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #cfaa60;outline-offset:3px}[hidden]{display:none!important}.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}.skip-link{position:absolute;left:12px;top:-90px;z-index:120;padding:10px 16px;color:#fff;background:#0a1f39}.skip-link:focus{top:8px}.site-header{position:sticky;top:0;z-index:50;height:86px;background:linear-gradient(110deg,#091b32,#193e63);color:#fff;border-bottom:3px solid var(--gold);display:flex;align-items:center;justify-content:space-between;padding:0 24px;gap:16px}.brand{line-height:1.18;white-space:nowrap}.brand>span{font-family:Georgia,"Times New Roman",serif;font-size:24px;font-weight:700;letter-spacing:.7px}.brand em{font-style:normal;color:var(--gold)}.brand small{display:block;font-size:9px;letter-spacing:2.1px;margin-top:4px;color:#dce4ed}.header-right{display:flex;align-items:center;gap:24px;min-width:0}.course-title{font-size:11px;letter-spacing:1.6px;font-weight:750;color:#e5e8ee;white-space:nowrap}.gold-dot{display:inline-block;width:8px;height:8px;background:var(--gold);border-radius:50%;box-shadow:0 0 0 3px rgba(216,170,74,.14);margin-right:12px}.timer{display:inline-flex;gap:6px;align-items:center;border:1px solid rgba(255,255,255,.16);border-radius:12px;background:rgba(255,255,255,.09);padding:7px 13px;font-size:15px;font-weight:800;letter-spacing:1px;font-variant-numeric:tabular-nums;white-space:nowrap}.timer.urgent{background:#6f2832;border-color:#e4a3ab}.site-footer{padding:15px 24px;color:#7a8594;border-top:1px solid var(--line);background:#fff;font-size:11px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}
.eyebrow{font-size:11px;letter-spacing:1.5px;font-weight:800;color:var(--gold-dark);line-height:1.7}.intro-layout{max-width:1400px;margin:auto;padding:34px 24px 40px;display:grid;grid-template-columns:minmax(0,1fr) 326px;gap:24px;align-items:start}.intro-card,.snapshot-card,.palette-card,.question-card,.result-summary,.result-review{border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow)}.intro-card{background:#fff;padding:35px 40px 40px}.intro-card h1{font-size:48px;letter-spacing:-1.3px;margin:14px 0 12px;line-height:1.2}.intro-card h1 span{color:var(--gold-dark)}.intro-lead{max-width:820px;color:#677587;font-size:17px;line-height:1.9;margin:15px 0 30px}.fact-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:0 0 28px}.fact-grid>div{background:#f4f7fb;border:1px solid var(--line);border-radius:13px;padding:12px 15px;min-height:82px}.fact-grid strong{display:block;font-size:22px;line-height:1.3}.fact-grid small{font-size:10px;letter-spacing:1.15px;color:#718096;font-weight:800}.instructions-heading{font-size:15px;margin:0 0 10px}.instructions{list-style:none;padding:0;margin:0;display:grid;gap:14px}.instructions li{display:grid;grid-template-columns:18px minmax(0,1fr);gap:9px;font-size:13px;color:#647084;line-height:1.6}.instructions li:before{content:"✓";color:var(--green);font-weight:900}.instructions b{color:#4a596c}.snapshot-card{background:#102849;color:#fff;padding:22px 24px 28px}.snapshot-card .eyebrow{color:#d2ab63;margin:0 0 12px}.snapshot-time{font-size:42px;line-height:1.2;font-weight:850;letter-spacing:1px;font-variant-numeric:tabular-nums}.snapshot-card>p:not(.eyebrow):not(.snapshot-caption){font-size:13px;color:#aebdd1;line-height:1.8;margin:20px 0}.snapshot-rules{border-top:1px solid rgba(255,255,255,.14);border-bottom:1px solid rgba(255,255,255,.14);padding:21px 0;margin:20px 0;display:grid;gap:12px}.snapshot-rules div{display:flex;justify-content:space-between;font-size:12px;color:#b2bfd1}.snapshot-rules b{color:#fff}.btn{border:1px solid transparent;border-radius:12px;min-height:44px;padding:9px 18px;font-size:12px;font-weight:800;transition:background-color .15s,box-shadow .15s;white-space:nowrap}.start-btn{background:#dbac4d;color:#152644;width:100%;font-family:Georgia,"Times New Roman",serif;font-size:14px;box-shadow:0 4px 0 rgba(0,0,0,.08)}.start-btn:hover{background:#edc26a}.snapshot-caption{font-size:12px;color:#8799b2;line-height:1.6;margin:12px 0 0}
.exam-layout{max-width:1400px;margin:auto;padding:34px 24px 38px;display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:22px;align-items:start;min-height:calc(100vh - 140px)}.exam-main{min-width:0}.exam-topline{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:22px}.exam-topline .eyebrow{margin:0 0 3px}.exam-topline h1{font-size:20px;line-height:1.4;margin:0;font-weight:750}.answered-pill{background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 14px;font-size:12px;color:#7b8796;white-space:nowrap}.answered-pill b{color:var(--ink)}.question-card{overflow:hidden;background:#fff}.question-meta{padding:17px 25px;background:#fafbfe;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:18px}.question-meta b{font-size:13px;letter-spacing:.15px}.question-meta span{font-size:12px;color:#8290a1;text-align:right}.question-body{padding:26px 28px 10px;font-size:15.5px;line-height:1.9;word-break:normal;overflow-wrap:anywhere}.question-body p{margin:0 0 18px}.question-body strong{font-weight:760}.question-body>p:last-child{margin-bottom:10px}.question-body h3{font-size:16px;margin:0 0 12px}.question-body .stimulus-block{border:1px solid #dce6ef;border-left:4px solid var(--gold);background:#f7f9fc;border-radius:10px;margin-bottom:23px;padding:17px 19px;color:#37465b}.stimulus-block>p{margin:0 0 12px}.stimulus-block>p:last-child{margin-bottom:0}.table-wrap{max-width:100%;overflow-x:auto;border:1px solid #d8e1ea;border-radius:9px;background:#fff;margin:16px 0}.stimulus-block table{width:100%;border-collapse:collapse;font-size:12px;line-height:1.5;min-width:560px}.stimulus-block th,.stimulus-block td{padding:10px 9px;text-align:left;border-bottom:1px solid #dfe5ed}.stimulus-block th{background:#eaf0f6;color:#223851;font-weight:750}.stimulus-block tr:last-child td{border-bottom:0}.stimulus-block th:not(:first-child),.stimulus-block td:not(:first-child){text-align:center}.answer-choices{border:0;margin:0;padding:4px 28px 20px;display:grid;gap:10px;min-width:0}.choice{display:flex;align-items:flex-start;gap:15px;min-height:62px;padding:13px 16px;border:1px solid #e2e6eb;border-radius:12px;cursor:pointer;color:#415064;line-height:1.75;font-size:14px;transition:background .15s,border-color .15s}.choice:hover{border-color:#bbcbdd;background:#f8fbff}.choice input{position:absolute;opacity:0;width:1px;height:1px}.choice.selected{background:#edf5f3;border-color:#83bba9;box-shadow:0 0 0 1px #83bba9}.choice:focus-within{outline:3px solid #cfaa60;outline-offset:2px}.choice-letter{display:grid;place-items:center;flex:0 0 30px;min-width:30px;height:30px;border:1px solid #d5dde6;border-radius:9px;background:#f7f9fc;font-size:12px;font-weight:850;color:#3b4c63;margin-top:0}.choice.selected .choice-letter{background:#2b8067;color:#fff;border-color:#2b8067}.choice-content{min-width:0;flex:1}.choice-content p{margin:0}.question-actions{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:16px 22px;border-top:1px solid var(--line);background:#fff;flex-wrap:wrap}.actions-left,.actions-right{display:flex;gap:9px;flex-wrap:wrap}.btn-secondary{background:#fff;border-color:#e4e8ed;color:#586677;box-shadow:0 2px 3px rgba(14,34,62,.03)}.btn-secondary:hover:not(:disabled){background:#f0f4f8}.btn-review{background:#fff;color:#814caa;border-color:#dbc9e8}.btn-review:hover{background:#f9f4fc}.btn-primary{background:#10294c;color:#fff}.btn-primary:hover{background:#19406b}.palette-card{background:#fff;padding:17px 18px 18px;position:sticky;top:calc(86px + 22px);max-height:calc(100vh - 110px);display:flex;flex-direction:column;gap:0}.palette-title-row{display:flex;align-items:center;justify-content:space-between;gap:10px}.palette-card h2{font-size:18px;margin:0;font-weight:800}.palette-caption{margin:10px 0 18px;color:#8792a0;font-size:12px}.part-tabs{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:12px}.part-tab{border:1px solid #e0e5eb;background:#f3f6fa;color:#657080;border-radius:11px;min-height:37px;font-size:12px;font-weight:850}.part-tab.active{background:#10294c;color:#fff;border-color:#10294c}.palette-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:7px;overflow-y:auto;min-height:0;max-height:440px;padding:2px 2px 10px}.question-num{border:1px solid #d6dee7;background:#f4f6fa;border-radius:8px;min-height:41px;color:#516179;font-size:12px;font-weight:850;padding:0;font-variant-numeric:tabular-nums}.question-num.is-current{outline:2px solid var(--gold);outline-offset:1px}.question-num.unanswered{background:#fceff0;border-color:#d8aeb4;color:#a0444d}.question-num.answered{background:#e2f2eb;border-color:#9ecbb7;color:#246a51}.question-num.review{background:#efe5fa;border-color:#c5a8df;color:#70469a}.question-num.answered-review{background:linear-gradient(135deg,#e4f1e9 0 50%,#ebe0f7 50%);border-color:#bb9cde;color:#3b6e59}.palette-legend{border-top:1px solid #edf0f4;margin-top:12px;padding-top:13px;display:grid;grid-template-columns:1fr 1fr;gap:8px;color:#7b8795;font-size:11px;line-height:1.4}.palette-legend span{display:flex;align-items:center;gap:5px}.swatch{width:16px;height:16px;display:inline-block;border:1px solid #d4dce5;border-radius:5px;background:#f3f6fa;flex:0 0 16px}.swatch-unanswered{background:#fceff0;border-color:#d8aeb4}.swatch-answered{background:#e2f2eb;border-color:#9ecbb7}.swatch-review{background:#efe5fa;border-color:#c5a8df}.swatch-answered-review{background:linear-gradient(135deg,#e4f1e9 0 50%,#ebe0f7 50%);border-color:#bb9cde}.submit-button{width:100%;margin-top:16px}.mobile-palette-toggle,.palette-close,.palette-backdrop{display:none}
.math-inline{white-space:normal;font-style:italic}.math-equation{display:flex;justify-content:center;align-items:center;gap:6px;margin:16px auto 24px;font-size:21px;color:#1e385a;line-height:1.3;flex-wrap:wrap}.math-fraction{display:inline-flex;flex-direction:column;align-items:center;font-size:18px;vertical-align:middle}.math-fraction>span:first-child{border-bottom:1.7px solid #243c5b;padding:0 9px 5px}.math-fraction>span:last-child{padding:4px 9px 0}.math-fraction sub,.math-equation sub{font-size:12px}.modal-backdrop{position:fixed;inset:0;z-index:100;background:rgba(8,22,40,.65);display:grid;place-items:center;padding:20px}.modal-panel{background:#fff;border-radius:18px;padding:26px;max-width:450px;width:100%;box-shadow:0 18px 50px rgba(0,0,0,.24)}.modal-panel h2{font-size:21px;margin:0 0 8px}.modal-panel p{color:#687689;font-size:14px}.modal-counts{background:#f1f5fa;padding:11px 13px;border-radius:9px;margin:14px 0 18px;font-size:13px;color:#344963}.modal-buttons{display:flex;gap:10px;justify-content:flex-end;flex-wrap:wrap}
.result-layout{max-width:1390px;margin:auto;padding:32px 24px 42px}.result-header h1{font-size:32px;margin:4px 0}.result-header>p:last-child{color:#69798a;margin:0 0 19px}.result-stat-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:12px;margin-bottom:22px}.result-stat-grid>div{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px 20px;box-shadow:var(--shadow)}.result-stat-grid span{font-size:10px;font-weight:850;letter-spacing:1.2px;color:#7d8da0}.result-stat-grid strong{font-size:30px;color:#132b4c}.result-stat-grid .result-score{background:#10294c;border-color:#10294c}.result-score span,.result-score strong,.result-score small{color:#fff}.result-score strong{font-size:39px}.result-score small{font-size:12px;color:#b5c8dd}.result-bottom{display:grid;grid-template-columns:330px minmax(0,1fr);gap:20px;align-items:start}.result-summary,.result-review{background:#fff;padding:23px}.result-summary h2,.result-review h2{font-size:18px;line-height:1.4;margin:0 0 13px}.result-summary h2:not(:first-child){margin-top:24px}.analysis-row{border-bottom:1px solid #e9edf3;padding:10px 0;font-size:13px}.analysis-row>div:first-child{display:flex;justify-content:space-between;gap:10px}.analysis-row>div:first-child b{color:#1e3858}.analysis-row small{color:#7c8b9a}.analysis-bar{background:#e9edf4;height:6px;border-radius:10px;overflow:hidden;margin-top:8px}.analysis-fill{height:100%;background:#398c70}.retake-button{margin-top:24px;width:100%}.review-header p{margin:-6px 0 12px;font-size:13px;color:#7b8a99}.review-controls{display:flex;align-items:center;gap:10px;margin-bottom:16px;color:#607085;font-size:13px}.review-controls select{padding:7px 12px;border:1px solid #d8e0e9;border-radius:9px;background:#fff;color:#293e56}.review-item{border:1px solid #e0e7ed;border-radius:12px;margin-bottom:11px;overflow:hidden}.review-item summary{list-style:none;cursor:pointer;padding:13px 14px;display:flex;justify-content:space-between;align-items:center;gap:14px;color:#223954;font-size:13px;font-weight:760}.review-item summary::-webkit-details-marker{display:none}.review-item summary:after{content:"▾";font-size:16px;color:#8290a0}.review-item[open] summary{background:#f4f7fa;border-bottom:1px solid #e0e7ed}.review-item[open] summary:after{content:"▴"}.review-status{display:inline-block;margin-left:8px;font-size:11px;font-weight:700;color:#7f8a9c}.review-status.correct{color:#21765a}.review-status.wrong{color:#bb4e55}.review-status.skipped{color:#7d7f8a}.review-details{padding:18px 20px;font-size:13px;color:#3b4a5c}.review-details .stem{line-height:1.8}.review-details .stem p{margin:0 0 10px}.review-details .stimulus-block{background:#f7f9fc;border:1px solid #dfe7ee;padding:15px;border-radius:10px;margin:0 0 16px}.review-details .stimulus-block table{border-collapse:collapse;width:100%;font-size:11px;min-width:510px}.review-details .stimulus-block th,.review-details .stimulus-block td{border:1px solid #e0e7ee;padding:7px}.review-details .answer-options{display:grid;gap:5px;margin:14px 0}.review-details .answer-options div{padding:6px 9px;border-radius:6px;border:1px solid transparent}.review-details .answer-options .right{background:#e5f4ed;border-color:#a7cfba}.review-details .answer-options .picked-wrong{background:#fff0f0;border-color:#e0aaa9}.review-details .answer-remark{background:#f3f6fa;padding:11px 14px;border-radius:9px}.review-details .explanation{padding-top:12px;border-top:1px solid #e7ecf2;margin-top:13px;line-height:1.8}.review-details .explanation p{margin:0}.small-review-tag{font-size:10px;color:#73509b;margin-left:7px}
@media(max-width:1060px){.intro-layout{grid-template-columns:minmax(0,1fr) 284px}.intro-card{padding:30px}.exam-layout{grid-template-columns:minmax(0,1fr) 280px;gap:16px}.palette-grid{gap:5px}.question-actions{padding:14px}.btn{padding:9px 12px}.result-bottom{grid-template-columns:280px minmax(0,1fr)}}
@media(max-width:800px){.site-header{height:72px;padding:0 16px}.brand>span{font-size:19px}.brand small{font-size:8px;letter-spacing:1.4px}.course-title{display:none}.timer{font-size:14px;padding:7px 10px}.intro-layout{padding:18px 14px 26px;grid-template-columns:1fr}.intro-card{padding:26px 22px}.intro-card h1{font-size:39px}.snapshot-card{padding:22px}.exam-layout{padding:17px 12px 70px;grid-template-columns:1fr;display:block}.exam-topline h1{font-size:17px}.exam-topline{gap:8px;margin-bottom:14px}.answered-pill{font-size:11px;padding:8px 10px}.question-meta{padding:13px 17px}.question-body{padding:20px 18px 9px;font-size:15px}.answer-choices{padding:5px 16px 17px}.choice{min-height:56px;padding:12px 13px}.question-actions{display:flex;flex-direction:column-reverse;align-items:stretch;gap:10px}.actions-left,.actions-right{display:grid;grid-template-columns:1fr 1fr;width:100%;gap:8px}.btn{font-size:12px;white-space:normal;min-height:44px}.mobile-palette-toggle{display:block;position:fixed;bottom:14px;left:50%;transform:translateX(-50%);z-index:55;background:#10294c;color:#fff;border-radius:28px;box-shadow:0 7px 20px rgba(12,33,60,.35);padding:11px 24px;min-width:190px}.palette-card{display:none;position:fixed;z-index:70;top:72px;right:0;bottom:0;max-height:calc(100dvh - 72px);height:auto;width:min(370px,92vw);border-radius:16px 0 0 0;box-shadow:-20px 0 45px rgba(0,0,0,.20);padding:20px 17px}.palette-card.is-open{display:flex}.palette-close{display:block;background:#f2f5f9;border:0;border-radius:8px;width:34px;height:34px;font-size:24px;color:#516176}.palette-backdrop:not([hidden]){display:block;position:fixed;z-index:60;inset:72px 0 0;background:rgba(6,17,32,.53)}.palette-grid{max-height:none;flex:1;align-content:start;overflow-y:auto}.result-layout{padding:22px 12px 28px}.result-bottom{grid-template-columns:1fr}.result-stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.result-stat-grid>div{padding:13px 14px}.result-stat-grid strong{font-size:26px}.result-header h1{font-size:26px}}
@media(max-width:420px){.intro-card{padding:22px 16px}.intro-card h1{font-size:32px}.intro-lead{font-size:14px}.fact-grid{gap:7px}.fact-grid>div{padding:10px 9px;min-height:69px}.fact-grid strong{font-size:17px}.fact-grid small{font-size:8px;letter-spacing:.4px}.instructions li{font-size:12px}.exam-topline{align-items:center}.exam-topline h1{font-size:15px}.question-meta span{font-size:10px}.question-meta b{font-size:12px}.question-body{font-size:14px}.choice{font-size:13px;gap:11px}.question-actions{padding:13px}.actions-right .btn{font-size:11px}.result-score strong{font-size:30px}.site-footer{padding:12px}}