/* Django adaptation of the supplied PYQ Vault interface. */
.vault-core{background:var(--bg);color:var(--ink);font-family:'Plus Jakarta Sans',Inter,ui-sans-serif,system-ui,-apple-system,sans-serif;line-height:1.55}.vault-core *{box-sizing:border-box}.vault-core a{color:var(--accent-text)}.vault-core a:hover{text-decoration:none}.vault-core .content{max-width:1230px;margin:0 auto;padding:30px 28px 90px}.vault-header{position:sticky;top:0;z-index:20;background:var(--surface);border-bottom:1px solid var(--line)}.vault-header-inner{max-width:1280px;margin:auto;min-height:82px;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:12px 28px}.vault-logo{display:flex;gap:10px;align-items:center;flex-shrink:0;color:var(--ink);font-size:22px;font-weight:850;letter-spacing:-.7px;line-height:1.1}.vault-logo-mark{display:grid;place-items:center;background:linear-gradient(135deg,var(--accent),var(--accent-strong));height:43px;width:43px;border-radius:13px;box-shadow:0 5px 12px rgba(23,89,166,.2)}.vault-logo svg{width:25px;fill:none;stroke:#fff;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.logo-accent{color:var(--accent-text)}.vault-logo small{display:block;max-width:200px;overflow:hidden;text-overflow:ellipsis;font-size:12px;text-transform:uppercase;font-weight:650;letter-spacing:1.2px;color:var(--muted);margin-top:5px}.vault-nav{display:flex;align-items:center;gap:8px}.vault-nav a{font-size:12px;font-weight:750;white-space:nowrap;padding:9px 13px;border-radius:30px;color:var(--ink-2);background:var(--surface-2);border:1px solid transparent}.vault-nav a[aria-current=page]{background:var(--accent);color:var(--on-accent);box-shadow:0 3px 10px rgba(23,89,166,.2)}.vault-nav a.nav-green:not([aria-current]){background:var(--ok-soft);color:var(--ok-text);border-color:var(--line)}.vault-nav a.nav-purple:not([aria-current]){background:var(--accent-soft);color:var(--accent-text);border-color:var(--line)}.vault-account{display:flex;align-items:center;gap:12px}.theme-toggle,.vault-signout{background:transparent!important;border:0!important;color:var(--muted);box-shadow:none!important;padding:6px!important;font-size:12px!important}.theme-toggle{font-size:24px!important;width:32px}.vault-avatar{display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:var(--accent-soft);color:var(--accent-text);font-size:12px;font-weight:800}.vault-core h1{font-size:34px;line-height:1.16;letter-spacing:-1.3px;margin:12px 0}.vault-core h2{font-size:23px;letter-spacing:-.65px;margin:0 0 5px}.vault-core h3{letter-spacing:-.3px}.vault-core .eyebrow{font-size:12px;letter-spacing:1.7px;font-weight:800;color:var(--accent-text)}.vault-core .muted{font-size:13px;color:var(--muted)}.vault-hero{display:flex;align-items:center;position:relative;overflow:hidden;background:radial-gradient(ellipse at 100% 15%,#ffffff14,transparent 65%),linear-gradient(120deg,var(--hero-to),var(--hero-from) 55%,var(--hero-from));border:1px solid var(--accent-line);color:#fff;border-radius:26px;min-height:332px;padding:40px 44px;box-shadow:0 12px 28px rgba(23,32,51,.08)}.vault-hero-copy{position:relative;z-index:1;max-width:650px}.hero-pill{display:inline-flex;align-items:center;border:1px solid #ffffff26;border-radius:30px;padding:5px 12px;font-size:12px!important;color:#ffffff;background:#ffffff09;margin:0 0 12px!important;letter-spacing:.4px;font-weight:700}.vault-hero h1{font-size:46px;line-height:1.12;letter-spacing:-1.8px;color:var(--on-accent);font-weight:850;margin:6px 0 17px}.vault-hero h1 span{background:linear-gradient(100deg,#ffffff,#ffffffe6 65%,#ffffffcc);color:transparent;background-clip:text}.vault-hero p{font-size:13px;color:#ffffffe6;max-width:540px;line-height:1.8}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.vault-core .btn,.vault-core button[type=submit]{background:var(--accent);color:var(--on-accent);border:1px solid transparent;border-radius:11px;font-size:12px;font-weight:750;padding:11px 18px;display:inline-flex;align-items:center;gap:18px}.vault-hero .btn{background:var(--accent);border:1px solid var(--accent)}.vault-hero .hero-secondary{background:#ffffff0c;border-color:#ffffff25;color:#ffffff}.hero-art{position:absolute;right:32px;top:56px;width:240px;height:240px;pointer-events:none}.art-orbit{position:absolute;border:1px solid var(--accent-line);border-radius:50%;width:250px;height:250px;top:-20px;left:-10px;box-shadow:0 0 0 32px rgba(23,89,166,.2),0 0 0 64px rgba(23,89,166,.2)}.art-sheet{position:absolute;inset:5px 10px 20px 25px;border:1px solid #ffffff24;background:linear-gradient(130deg,#ffffff1c,#ffffff08);backdrop-filter:blur(4px);border-radius:18px;transform:rotate(8deg);padding:24px;box-shadow:0 20px 45px #0003}.art-label{font-size:12px;letter-spacing:.9px;color:#ffffffd9;font-weight:800}.art-equation{font-family:Georgia,serif;font-style:italic;font-size:40px;margin:15px 0;color:#fff}.art-line{width:100%;height:4px;background:#ffffff20;border-radius:10px;margin:10px 0}.art-line.short{width:64%}.art-options{display:flex;gap:6px;margin-top:22px}.art-options i{font-size:12px;border:1px solid #ffffff20;border-radius:5px;padding:5px 8px;color:#ffffffd9;font-style:normal}.art-options .correct{color:#ffffff;background:#ffffff26;border-color:#ffffff40}.art-star{position:absolute;right:-2px;top:0;font-size:40px;color:#ffffff}.vault-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:22px 0 32px}.vault-stat{background:var(--surface);border:1px solid var(--line);padding:18px;border-radius:16px;display:flex;gap:12px;align-items:center;box-shadow:0 2px 2px rgba(23,32,51,.08)}.vault-stat strong{display:block;font-size:22px;line-height:1.25;font-weight:850}.vault-stat small{font-size:12px;color:var(--muted)}.stat-icon{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;font-size:23px;flex-shrink:0}.blue{color:var(--accent-text);background:var(--accent-soft)}.green{color:var(--ok-text);background:var(--ok-soft)}.purple{color:var(--accent-text);background:var(--accent-soft)}.amber{color:var(--warn-text);background:var(--warn-soft)}.vault-section{margin-top:32px;scroll-margin-top:110px}.section-heading{display:flex;justify-content:space-between;align-items:center;gap:18px;margin:0 0 18px}.section-heading p{margin:5px 0}.section-heading>a{font-size:12px;font-weight:750;white-space:nowrap}.vault-exams{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.vault-exam{--exam:var(--exam-jee-main);display:flex;flex-direction:column;position:relative;background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:23px;color:var(--ink);transition:transform .15s,box-shadow .15s,border-color .15s}.vault-exam:hover{border-color:var(--exam);box-shadow:0 12px 30px rgba(23,32,51,.08);transform:translateY(-3px)}.exam-neet{--exam:var(--exam-neet)}.exam-jee-advanced{--exam:var(--exam-jee-advanced)}.exam-meta{display:flex;justify-content:space-between;gap:10px;align-items:center;font-size:12px;color:var(--muted);margin-bottom:22px}.exam-category{color:var(--exam);background:var(--exam-bg);padding:4px 9px;border-radius:20px;font-size:12px;letter-spacing:.5px;text-transform:uppercase;font-weight:800}.exam-monogram{display:grid;place-items:center;background:var(--exam-bg);color:var(--exam);height:42px;width:42px;font-size:20px;font-weight:850;border-radius:12px;margin-bottom:13px}.vault-exam h3{font-size:22px;font-weight:850;margin:0 0 3px}.exam-fullname{font-size:12px!important;color:var(--muted);margin:0 0 12px!important;line-height:1.5}.exam-description{font-size:12px!important;line-height:1.8;color:var(--muted);margin:0 0 24px!important}.exam-footer{margin-top:auto;display:flex;justify-content:space-between;border-top:1px solid var(--line);padding-top:15px;gap:12px;font-size:12px}.exam-footer span{color:var(--exam);font-weight:800}.vault-tools{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.tool-card{border:1px solid var(--line);border-radius:20px;background:linear-gradient(120deg,var(--accent-soft),var(--accent-soft));padding:23px;display:flex;flex-direction:column;color:var(--ink)}.tool-green{background:linear-gradient(120deg,var(--ok-soft),var(--ok-soft));border-color:var(--line)}.tool-purple{background:linear-gradient(120deg,var(--accent-soft),var(--accent-soft));border-color:var(--line)}.tool-symbol{font-size:26px;color:var(--accent-text)}.tool-green .tool-symbol{color:var(--ok-text)}.tool-purple .tool-symbol{color:var(--accent-text)}.tool-card h3{font-size:15px;margin:12px 0 5px}.tool-card p{font-size:12px;line-height:1.8;color:var(--muted);margin:0 0 18px}.tool-card strong{font-size:12px;color:var(--accent-text);margin-top:auto;border-top:1px solid var(--accent-line);padding-top:13px}.vault-core .panel{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:26px;box-shadow:none}.vault-core .row{border-color:var(--line);gap:20px}.vault-core .row a{font-size:13px;font-weight:650;color:var(--ink)}.vault-core .row p{font-size:12px;color:var(--muted)}.result-pill{font-size:12px;font-weight:750;color:var(--warn-text);background:var(--warn-soft);padding:5px 10px;border-radius:20px;flex-shrink:0}.result-correct{color:var(--ok-text);background:var(--ok-soft)}.vault-empty{text-align:center;padding:26px 15px;color:var(--muted)}.vault-empty>span{font-size:30px;color:var(--accent-text)}.vault-empty h3{font-size:15px;color:var(--ink)}.vault-empty p{font-size:12px}.vault-bottomnav{display:none}.vault-core .filters{flex-wrap:wrap;align-items:end;gap:14px;background:var(--bg);padding:18px;border-radius:14px;margin-bottom:20px}.vault-core .filters label{font-size:12px;font-weight:750;color:var(--muted);display:flex;flex-direction:column;gap:6px}.vault-core input:not([type=radio]):not([type=checkbox]),.vault-core select{background:var(--surface);color:var(--ink);border:1px solid var(--line);border-radius:9px;padding:10px 12px;font-size:12px;max-width:100%}.vault-core .question{border-radius:14px;border:1px solid var(--line);background:var(--surface);padding:22px;margin-bottom:14px}.vault-core .question h3{font-size:16px;line-height:1.8}.vault-core .question h3 a{color:var(--ink)}.vault-core .badge{font-size:12px;font-weight:750;background:var(--accent-soft);color:var(--accent-text);padding:5px 10px;border-radius:20px}.exam-banner{background:linear-gradient(115deg,var(--accent),var(--accent-strong));color:#fff;padding:30px 34px;border-radius:22px;margin:20px 0 26px}.exam-banner.exam-neet{background:linear-gradient(115deg,var(--exam-neet-solid),var(--exam-neet-solid))}.exam-banner.exam-jee-advanced{background:linear-gradient(115deg,var(--exam-jee-advanced-solid),var(--exam-jee-advanced-solid))}.exam-banner h1{font-weight:850;margin:5px 0 12px}.exam-banner p{font-size:12px;color:#ffffffc9}.exam-banner .badge{background:#ffffff20;color:var(--on-accent)}.subject-links{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px}.subject-links a{border:1px solid var(--line);border-radius:12px;padding:13px 18px;font-size:12px;font-weight:750;background:var(--surface);color:var(--ink)}.subject-links a[aria-current=true]{background:var(--accent);color:#fff;border-color:var(--accent)}.chapter-links{display:flex;gap:8px;overflow:auto;padding-bottom:8px;margin-bottom:18px}.chapter-links a{display:flex;align-items:center;gap:12px;white-space:nowrap;border:1px solid var(--line);background:var(--surface);border-radius:9px;padding:9px 12px;font-size:12px;color:var(--ink)}.chapter-links a[aria-current=true]{border-color:var(--accent);background:var(--accent-soft);color:var(--accent-text)}.chapter-links span{font-size:12px;color:var(--muted)}.question-detail .question-stem{font-size:22px;font-weight:650;line-height:1.8;white-space:pre-wrap}.question-detail .answer-choice{display:flex;align-items:flex-start;gap:12px;border:1px solid var(--line);border-radius:12px;padding:16px;margin:12px 0;cursor:pointer;font-size:14px;line-height:1.8}.question-detail .answer-choice:has(input:checked){background:var(--accent-soft);border-color:var(--accent)}.question-detail .answer-choice input{margin-top:6px;accent-color:var(--accent)}.question-detail .answer-choice b{font-size:12px;color:var(--accent-text)}.question-detail .answer-result{border:1px solid var(--line);border-radius:14px;padding:22px;background:var(--bg);margin:22px 0}.vault-dark{color-scheme:dark}.vault-dark .vault-nav a:not([aria-current]),.vault-dark .subject-links a[aria-current=true]{background:var(--accent-soft);color:var(--accent-text)}.vault-dark .tool-card{background:linear-gradient(120deg,var(--surface-2),var(--surface-2));border-color:var(--line)}.vault-dark .tool-card p{color:var(--muted)}.vault-dark .exam-category,.vault-dark .exam-monogram,.vault-dark .stat-icon,.vault-dark .badge{background:#ffffff09}.vault-dark .chapter-links a[aria-current=true],.vault-dark .question-detail .answer-choice:has(input:checked){background:var(--accent-soft)}.vault-core .notice{background:var(--surface);color:var(--ink);border:1px solid var(--line)}.vault-public{background:radial-gradient(ellipse at top,var(--accent-soft),var(--bg) 70%)}.vault-public .auth-emblem,.vault-public .brand-mark{background:linear-gradient(135deg,var(--accent),var(--accent-strong))}.vault-public .auth-card{border-radius:22px;box-shadow:0 16px 60px rgba(23,32,51,.08)}.vault-public button[type=submit]{background:var(--accent)}
@media(min-width:1100px){.vault-hero-copy{max-width:72%}.vault-hero-copy>p:not(.hero-pill){max-width:540px}}@media(max-width:1100px){.hero-art{opacity:.45;right:-45px}.vault-hero-copy{max-width:85%}.vault-nav{gap:3px}.vault-nav a{padding:8px 9px;font-size:12px}.vault-header-inner{gap:15px}.vault-logo small{max-width:130px}.vault-stats{gap:10px}.vault-stat{padding:14px;gap:9px}.stat-icon{width:32px;height:32px}}@media(max-width:800px){.vault-header-inner{min-height:70px;padding:12px 20px}.vault-nav{display:none}.vault-core .content{padding:24px 20px 100px}.vault-hero{padding:30px;min-height:290px}.vault-hero h1{font-size:38px}.hero-art{display:none}.vault-hero-copy{max-width:100%}.vault-stats{grid-template-columns:repeat(2,1fr)}.vault-exams,.vault-tools{grid-template-columns:repeat(2,1fr)}.vault-bottomnav{display:flex;position:fixed;bottom:0;left:0;right:0;background:var(--surface);border-top:1px solid var(--line);justify-content:space-around;z-index:20;padding:9px 12px max(10px,env(safe-area-inset-bottom))}.vault-bottomnav a{display:flex;flex-direction:column;align-items:center;gap:2px;font-size:12px;color:var(--muted);font-weight:750;min-width:52px}.vault-bottomnav a>span{font-size:23px;line-height:1.2}.vault-bottomnav a[aria-current=page]{color:var(--accent-text)}.vault-core h2{font-size:21px}}@media(max-width:540px){.vault-core .content{padding:18px 16px 100px}.vault-header-inner{padding:10px 16px;gap:10px}.vault-account{gap:6px}.vault-logo{font-size:19px}.vault-logo-mark{width:36px;height:36px;border-radius:11px}.vault-logo small{font-size:12px;max-width:140px}.vault-avatar{display:none}.vault-signout{font-size:12px!important}.vault-hero{padding:26px 23px;border-radius:21px;min-height:300px}.vault-hero h1{font-size:33px;letter-spacing:-1.2px}.vault-hero p{font-size:12px}.hero-actions{gap:8px;margin-top:18px}.vault-core .btn{font-size:12px;padding:10px 12px;gap:8px}.vault-exams,.vault-tools{grid-template-columns:1fr;gap:14px}.vault-stats{gap:9px;margin-top:16px}.vault-stat{padding:12px}.vault-stat strong{font-size:20px}.vault-stat small{font-size:12px}.vault-section{margin-top:26px}.section-heading{align-items:flex-start}.section-heading>a{font-size:12px}.vault-core h2{font-size:20px}.vault-core .panel{padding:19px}.exam-banner{padding:24px}.exam-banner h1{font-size:30px}.vault-core .filters label{flex:1 1 100px;min-width:0}.question-detail .question-stem{font-size:18px}.question-detail .answer-choice{font-size:13px}.subject-links{gap:7px}.subject-links a{padding:10px 12px;font-size:12px}}@media(prefers-reduced-motion:reduce){.vault-core *{scroll-behavior:auto!important;transition:none!important}}
.vault-core .filters select{min-width:0;width:100%}.question-open{font-size:12px;font-weight:750}.vault-core .question-detail form>button{margin-top:14px}.vault-core mjx-container{max-width:100%;overflow-x:auto;overflow-y:hidden}
.vault-core .taxonomy-card{background:var(--surface);border-radius:15px;padding:20px;transition:border-color .15s}.vault-core .taxonomy-card:hover{border-color:var(--accent)}.vault-core .taxonomy-card[aria-current=true]{border-color:var(--accent);background:var(--accent-soft);box-shadow:inset 3px 0 rgba(23,89,166,.2)}.vault-core .taxonomy-subtopic[aria-current=true]{background:var(--ok-soft);border-color:var(--ok);box-shadow:inset 3px 0 rgba(23,89,166,.2)}.vault-dark .taxonomy-card[aria-current=true]{background:var(--accent-soft)}.vault-dark .taxonomy-subtopic[aria-current=true]{background:var(--ok-soft)}