:root{--ink:#171128;--muted:#786c82;--purple:#7426e8;--purple2:#9b39ef;--pink:#ef3fae;--green:#00a87d;--red:#eb315c;--gold:#f3a51f;--blue:#3979f6;--paper:#fbf9ff;--line:#eadff3;--white:#fff;--shadow:0 16px 45px rgba(64,30,93,.09);--r:24px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:linear-gradient(180deg,#fff 0,#fbf8ff 48%,#f7f6fb 100%);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;min-height:100vh}a{color:inherit;text-decoration:none}button,input,select{font:inherit}.cx-topbar{height:74px;position:sticky;top:0;z-index:50;display:flex;align-items:center;gap:28px;padding:0 max(22px,calc((100vw - 1180px)/2));background:rgba(255,255,255,.92);backdrop-filter:blur(18px);border-bottom:1px solid rgba(117,77,144,.12)}.cx-brand{display:flex;align-items:center;gap:10px;font-weight:900;font-size:23px;white-space:nowrap}.cx-brand>span:last-child span{color:var(--purple)}.cx-brand-mark{display:grid;place-items:center;width:39px;height:39px;border-radius:13px;background:linear-gradient(145deg,var(--purple),var(--pink));color:white;font-size:12px;box-shadow:0 9px 22px rgba(116,38,232,.24)}.cx-nav{margin-left:auto;display:flex;align-items:center;gap:8px}.cx-nav a{padding:10px 13px;border-radius:12px;color:#554a61;font-weight:750;font-size:14px}.cx-nav a:hover,.cx-nav a.active{background:#f4ebff;color:var(--purple)}.cx-nav .nav-login{color:#fff;background:linear-gradient(135deg,var(--purple),var(--pink));padding-inline:18px}.cx-menu{display:none;margin-left:auto;background:transparent;border:0;font-size:25px}.cx-main{width:min(1180px,calc(100% - 32px));margin:0 auto;padding:30px 0 60px}.cx-footer{display:flex;justify-content:space-between;gap:20px;width:min(1180px,calc(100% - 32px));margin:auto;padding:22px 0 32px;color:#84768d;font-size:13px;border-top:1px solid var(--line)}
.hero{position:relative;overflow:hidden;border-radius:32px;padding:42px;background:linear-gradient(125deg,#6d28df 0%,#9b35ed 52%,#ed41ae 100%);color:#fff;box-shadow:0 22px 70px rgba(123,44,220,.2)}.hero:before,.hero:after{content:"";position:absolute;border-radius:50%;background:rgba(255,255,255,.1)}.hero:before{width:320px;height:320px;right:-90px;top:-170px}.hero:after{width:180px;height:180px;right:190px;bottom:-135px}.hero>*{position:relative;z-index:1}.eyebrow{display:inline-flex;align-items:center;gap:7px;padding:7px 11px;border-radius:999px;background:rgba(255,255,255,.15);font-size:12px;font-weight:850;letter-spacing:.2px}.hero h1{font-size:clamp(34px,5vw,59px);max-width:780px;letter-spacing:-2.4px;line-height:1.01;margin:16px 0 14px}.hero p{max-width:700px;margin:0;color:rgba(255,255,255,.88);font-size:17px;line-height:1.65}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:15px;padding:13px 18px;font-weight:850;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease}.btn:hover{transform:translateY(-1px)}.btn-white{background:#fff;color:var(--purple);box-shadow:0 9px 30px rgba(48,20,87,.14)}.btn-glass{background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.26);color:#fff}.btn-primary{background:linear-gradient(135deg,var(--purple),var(--pink));color:#fff;box-shadow:0 10px 25px rgba(122,41,222,.18)}.btn-soft{background:#f2eaff;color:var(--purple)}.btn-green{background:#e7fbf5;color:#008b67}.btn-danger{background:#fff0f3;color:#d8234c}.btn[disabled]{opacity:.48;cursor:not-allowed;transform:none}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin:34px 0 15px}.section-head h2{margin:0;font-size:25px;letter-spacing:-.7px}.section-head p{margin:5px 0 0;color:var(--muted)}.grid{display:grid;gap:16px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.card{background:rgba(255,255,255,.96);border:1px solid var(--line);border-radius:var(--r);padding:22px;box-shadow:var(--shadow)}.card h3{margin:0 0 7px;font-size:18px;letter-spacing:-.35px}.card p{margin:0;color:var(--muted);line-height:1.55}.action-card{display:block;position:relative;min-height:155px;overflow:hidden;transition:transform .18s ease,box-shadow .18s ease}.action-card:hover{transform:translateY(-3px);box-shadow:0 20px 48px rgba(86,41,118,.13)}.action-card .icon{display:grid;place-items:center;width:48px;height:48px;border-radius:16px;margin-bottom:20px;font-size:22px;background:#f3eaff}.action-card .go{position:absolute;right:18px;top:18px;color:var(--purple);font-weight:900}.tint-pink{background:linear-gradient(145deg,#fff,#fff1f8)}.tint-purple{background:linear-gradient(145deg,#fff,#f4edff)}.tint-blue{background:linear-gradient(145deg,#fff,#eef6ff)}.tint-green{background:linear-gradient(145deg,#fff,#ecfcf6)}.tint-gold{background:linear-gradient(145deg,#fff,#fff9e9)}
.path-card{min-height:208px;color:#fff;border:0;position:relative;overflow:hidden}.path-card.core{background:linear-gradient(135deg,#6331df,#8b42ee)}.path-card.extended{background:linear-gradient(135deg,#ec3ba3,#b633e8)}.path-card h3{font-size:26px;margin:0 0 9px}.path-card p{color:rgba(255,255,255,.83);max-width:420px}.difficulty{display:flex;gap:7px;flex-wrap:wrap;margin:18px 0}.difficulty span{padding:6px 9px;border-radius:999px;background:rgba(255,255,255,.14);font-size:11px;font-weight:800}.sprint-card{display:grid;grid-template-columns:1.35fr .65fr;gap:25px;align-items:center;background:linear-gradient(120deg,#fff9fc,#fbf1ff 52%,#f2e9ff);border-color:#efc9fa}.sprint-card h2{font-size:30px;margin:0 0 9px}.sprint-burst{min-height:190px;border-radius:24px;display:grid;place-items:center;text-align:center;color:white;background:radial-gradient(circle at 35% 20%,#ff66bf,#b13def 56%,#6c29df);box-shadow:0 18px 40px rgba(174,58,233,.22)}.sprint-burst strong{display:block;font-size:50px;line-height:1}.sprint-burst small{font-weight:800;opacity:.85}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.stat{padding:17px;border:1px solid var(--line);border-radius:18px;background:white}.stat small{color:var(--muted);font-weight:700}.stat strong{display:block;font-size:25px;margin-top:7px}.progress{height:9px;background:#eee8f4;border-radius:99px;overflow:hidden}.progress>span{display:block;height:100%;background:linear-gradient(90deg,var(--purple),var(--pink));border-radius:99px}.notice{padding:14px 16px;border-radius:16px;background:#f4ecff;color:#6132a0;font-weight:700}.notice.warn{background:#fff7e5;color:#916010}.notice.error{background:#fff0f3;color:#bf2347}.notice.success{background:#e9fbf5;color:#087b60}.empty{padding:45px 20px;text-align:center;color:var(--muted)}
.page-head{display:flex;justify-content:space-between;align-items:center;gap:18px;margin-bottom:20px}.page-head h1{font-size:32px;margin:0;letter-spacing:-1px}.page-head p{margin:6px 0 0;color:var(--muted)}.tabs{display:flex;gap:8px;flex-wrap:wrap}.tab{border:1px solid var(--line);background:#fff;color:#6d5a78;padding:9px 13px;border-radius:999px;font-weight:800;cursor:pointer}.tab.active{background:#efe4ff;color:var(--purple);border-color:#dbc3f4}.filters{display:flex;gap:10px;flex-wrap:wrap}.field{width:100%;padding:13px 14px;border:1px solid #dfd3e9;border-radius:14px;background:#fff;color:var(--ink);outline:none}.field:focus{border-color:#9a6be2;box-shadow:0 0 0 3px rgba(116,38,232,.08)}.filters .field{width:auto;min-width:190px}.list{display:grid;gap:12px}.list-card{display:flex;align-items:center;gap:15px;background:#fff;border:1px solid var(--line);border-radius:20px;padding:17px}.list-card .grow{flex:1;min-width:0}.list-card h3{margin:0 0 4px}.list-card p{margin:0;color:var(--muted);font-size:13px}.badge{display:inline-flex;align-items:center;padding:5px 9px;border-radius:999px;background:#f1e9ff;color:var(--purple);font-size:11px;font-weight:850}.badge.green{background:#e5faf3;color:#008663}.badge.red{background:#fff0f3;color:#d22c50}.badge.gold{background:#fff6df;color:#a26a00}
.question-shell{max-width:820px;margin:0 auto}.question-top{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:12px}.timer{font-weight:950;color:var(--red);font-size:18px}.question-card{background:#fff;border:1px solid #e3d7ec;border-radius:25px;padding:27px;box-shadow:var(--shadow)}.question-card .qtext{font-size:19px;font-weight:750;line-height:1.65}.question-card img{display:block;max-width:100%;max-height:420px;margin:18px auto;border-radius:15px}.options{display:grid;gap:10px;margin-top:18px}.option{display:flex;align-items:center;gap:12px;text-align:left;background:#fff;border:1.5px solid #e5dbe9;border-radius:16px;padding:14px;cursor:pointer}.option:hover{border-color:#b996dd;background:#fcf9ff}.option.selected{border-color:var(--purple);background:#f3eaff}.option .letter{display:grid;place-items:center;width:34px;height:34px;flex:0 0 34px;border-radius:50%;background:#f1e7ff;color:var(--purple);font-weight:900}.question-actions{display:flex;justify-content:space-between;gap:12px;margin-top:18px}.answer-box{margin-top:16px;padding:16px;border-radius:16px;background:#f5f1f8;display:none}.answer-box.open{display:block}.practice-group{margin-top:25px}.practice-group-head{display:flex;align-items:center;gap:10px;margin-bottom:10px}.practice-question{margin-bottom:12px}.practice-question summary{cursor:pointer;font-weight:800;line-height:1.5}.practice-question .answer{margin-top:12px;padding:13px;border-radius:14px;background:#f4ecff}.difficulty-simple{border-left:4px solid var(--green)}.difficulty-medium{border-left:4px solid var(--gold)}.difficulty-hard{border-left:4px solid var(--red)}
.login-page{display:grid;grid-template-columns:1fr .9fr;min-height:calc(100vh - 74px);gap:24px;align-items:center}.login-panel{padding:36px}.login-panel h1{font-size:42px;letter-spacing:-1.6px;margin:10px 0}.login-card{background:#fff;border:1px solid var(--line);border-radius:28px;padding:28px;box-shadow:var(--shadow)}.login-card label{display:block;font-size:13px;font-weight:800;margin:13px 0 6px}.login-card .btn{width:100%;margin-top:15px}.or{display:flex;align-items:center;gap:10px;color:#998b9f;font-size:12px;margin:17px 0}.or:before,.or:after{content:"";height:1px;flex:1;background:var(--line)}.lock-card{text-align:center;padding:44px 25px}.lock-card .lock{font-size:45px}.lock-card h2{margin-bottom:8px}
@media(max-width:900px){.grid-4{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(2,1fr)}.sprint-card{grid-template-columns:1fr}.login-page{grid-template-columns:1fr}.login-panel{display:none}.cx-menu{display:block}.cx-nav{display:none;position:absolute;top:68px;left:16px;right:16px;padding:12px;background:white;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}.cx-nav.open{display:grid}.cx-nav a{padding:12px}.stats{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.cx-main{width:min(100% - 22px,1180px);padding-top:16px}.cx-topbar{padding:0 14px;height:64px}.cx-brand{font-size:20px}.cx-brand-mark{width:35px;height:35px}.hero{padding:28px 23px;border-radius:25px}.hero h1{letter-spacing:-1.5px}.hero p{font-size:15px}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.action-card{min-height:135px}.section-head{align-items:flex-start;flex-direction:column}.page-head{align-items:flex-start;flex-direction:column}.list-card{align-items:flex-start;flex-wrap:wrap}.question-card{padding:20px}.sprint-card{padding:18px}.sprint-burst{min-height:145px}.cx-footer{flex-direction:column}.filters{display:grid;width:100%}.filters .field{width:100%}.login-card{padding:22px}.stats{grid-template-columns:1fr 1fr}}

/* CoreXMath web v1.2 — calm academic palette */
:root{--ink:#0f172a;--muted:#64748b;--purple:#2563eb;--purple2:#0ea5e9;--pink:#0f9f87;--green:#059669;--red:#dc3755;--gold:#e89212;--blue:#2563eb;--paper:#f6f8fc;--line:#dfe7f1;--shadow:0 14px 38px rgba(15,23,42,.07)}
body{background:linear-gradient(180deg,#fff 0,#f7f9fc 52%,#f3f6fa 100%)}
.cx-topbar{padding-left:max(22px,calc((100vw - 1280px)/2));padding-right:max(22px,calc((100vw - 1280px)/2));border-bottom-color:#e5eaf1;box-shadow:0 3px 18px rgba(15,23,42,.025)}
.cx-brand>span:last-child span{color:#2563eb}.cx-brand-mark{background:linear-gradient(145deg,#0f172a,#2563eb);box-shadow:0 8px 18px rgba(37,99,235,.18)}
.cx-nav a{color:#475569}.cx-nav a:hover,.cx-nav a.active{background:#eff6ff;color:#1d4ed8}.cx-nav .nav-login{background:#0f172a;color:#fff;box-shadow:none}
.cx-main,.cx-footer{width:min(1280px,calc(100% - 40px))}.cx-footer{color:#64748b}
.hero{background:linear-gradient(135deg,#fff 0%,#f5f9ff 58%,#eefbf8 100%);color:#0f172a;border:1px solid #dce6f1;box-shadow:0 20px 60px rgba(15,23,42,.075)}
.hero:before{background:radial-gradient(circle,#93c5fd 0,#bfdbfe 48%,rgba(219,234,254,0) 72%);opacity:.55}.hero:after{background:radial-gradient(circle,#6ee7b7 0,#a7f3d0 48%,rgba(209,250,229,0) 72%);opacity:.45}
.hero .eyebrow{background:#eaf2ff;color:#1d4ed8;border:1px solid #dbeafe}.hero h1{color:#0f172a}.hero p{color:#526176}.hero .btn-white{background:#2563eb;color:#fff;box-shadow:0 10px 25px rgba(37,99,235,.2)}.hero .btn-glass{background:#fff;color:#1e40af;border:1px solid #cbdcf4}
.btn-primary{background:#2563eb;color:#fff;box-shadow:0 9px 22px rgba(37,99,235,.17)}.btn-soft{background:#eff6ff;color:#1d4ed8}.btn-green{background:#e8f8f3;color:#047857}
.card{border-color:#dfe7f1}.action-card{background:#fff}.action-card:hover{box-shadow:0 18px 44px rgba(15,23,42,.1)}.action-card .go{color:#2563eb}
.tint-pink,.tint-purple,.tint-blue,.tint-green,.tint-gold{background:#fff}.tint-pink .icon{background:#fff7ed;color:#ea580c}.tint-purple .icon{background:#eff6ff;color:#2563eb}.tint-blue .icon{background:#ecfeff;color:#0891b2}.tint-green .icon{background:#ecfdf5;color:#059669}.tint-gold .icon{background:#fffbeb;color:#d97706}
.path-card{box-shadow:0 18px 40px rgba(15,23,42,.09)}.path-card.core{background:linear-gradient(135deg,#173f9b 0%,#2563eb 58%,#168ed8 100%)}.path-card.extended{background:linear-gradient(135deg,#075f56 0%,#0f9f87 58%,#16a979 100%)}.path-card .btn-glass{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.32);color:#fff}
.sprint-card{background:linear-gradient(125deg,#0b1220,#111c31 64%,#123448);border-color:#24364e;color:#fff;box-shadow:0 20px 50px rgba(15,23,42,.17)}.sprint-card p{color:#c7d2e0}.sprint-card .badge{background:rgba(52,211,153,.12);color:#7ee5bd}.sprint-card .btn-primary{background:#22c55e;color:#052e20;box-shadow:none}.sprint-burst{background:radial-gradient(circle at 28% 20%,#34d399,#0ea5e9 48%,#1d4ed8 100%);box-shadow:0 18px 42px rgba(14,165,233,.2)}
.progress{background:#e7edf4}.progress>span{background:linear-gradient(90deg,#2563eb,#0ea5e9)}.notice{background:#eff6ff;color:#1e40af}.tab{color:#526176}.tab.active{background:#eaf2ff;color:#1d4ed8;border-color:#bfdbfe}.field{border-color:#cfd9e6}.field:focus{border-color:#60a5fa;box-shadow:0 0 0 3px rgba(37,99,235,.09)}
.badge{background:#eff6ff;color:#1d4ed8}.question-card{border-color:#dce4ee}.option{border-color:#dce4ee}.option:hover{border-color:#93b4e8;background:#f8fbff}.option.selected{border-color:#2563eb;background:#eff6ff}.option .letter{background:#eaf2ff;color:#1d4ed8}.practice-question .answer{background:#eff6ff}
body[data-page="quiz"] .hero{background:linear-gradient(135deg,#0b1830,#173f9b 58%,#1677c8);color:#fff;border-color:#204f9e}.hero p,body[data-page="quiz"] .hero p{color:#526176}body[data-page="quiz"] .hero p{color:#dbeafe}body[data-page="quiz"] .hero .eyebrow{background:rgba(255,255,255,.12);color:#dbeafe;border-color:rgba(255,255,255,.2)}
body[data-page="sprint"] .hero{background:linear-gradient(135deg,#07111f,#10263a 60%,#0d4c50);color:#fff;border-color:#173b4b}body[data-page="sprint"] .hero p{color:#cbd5e1}body[data-page="sprint"] .hero .eyebrow{background:rgba(52,211,153,.12);color:#86efac;border-color:rgba(52,211,153,.2)}
body[data-page="quiz"] .hero h1,body[data-page="sprint"] .hero h1{color:#fff}
body[data-page="assessments"] .hero{background:linear-gradient(135deg,#fff,#f4f9ff 64%,#effcf8);color:#0f172a}
@media(max-width:620px){.cx-main{width:min(100% - 22px,1280px)}.hero{padding:29px 23px}.sprint-card{background:linear-gradient(145deg,#0b1220,#123448)}}

/* v1.3 — educational practice workspace */
.hero h1{font-size:clamp(32px,3.2vw,47px);line-height:1.06;letter-spacing:-1.7px}.hero p{font-size:16px}.section-head h2{font-size:22px}.path-card h3{font-size:23px}.sprint-card h2{font-size:26px}
body[data-page="practice"]{background:#f5f7fa}body[data-page="practice"] .cx-main{max-width:1120px}body[data-page="practice"] .page-head{margin:6px 0 18px}body[data-page="practice"] .page-head h1{font-size:27px;letter-spacing:-.6px}body[data-page="practice"] .page-head p{font-size:14px}
body[data-page="practice"]>.cx-topbar{background:rgba(255,255,255,.97)}body[data-page="practice"] .filters{display:grid;grid-template-columns:1fr 1.35fr 1.15fr auto;gap:10px}body[data-page="practice"] .filters .field{width:100%;min-width:0}body[data-page="practice"] .cx-main>section.card{padding:16px;border-radius:16px;box-shadow:0 7px 25px rgba(15,23,42,.045)}
.practice-summary{display:flex;align-items:center;gap:22px;flex-wrap:wrap;margin:14px 0 22px;padding:11px 15px;border:1px solid #cfe1f5;border-radius:13px;background:#f0f7ff;color:#415269;font-size:13px}.practice-summary span+span{padding-left:22px;border-left:1px solid #cddbea}.practice-summary strong{color:#174ea6}.practice-summary b{color:#0f172a}
.practice-workspace{max-width:980px;margin:0 auto}.practice-number-nav{display:flex;gap:8px;overflow-x:auto;padding:2px 2px 14px;scrollbar-width:thin}.practice-number{width:43px;height:43px;flex:0 0 43px;border:1px solid #d4dde8;border-radius:10px;background:#fff;color:#334155;font-size:15px;font-weight:750;cursor:pointer;transition:.15s ease}.practice-number:hover{border-color:#8bb2ef;background:#f7fbff}.practice-number.seen{border-color:#b8cdec}.practice-number.active{background:#2563eb;color:#fff;border-color:#2563eb;box-shadow:0 0 0 4px #dbeafe}
.practice-exam-card{overflow:hidden;background:#fff;border:1px solid #dce3ec;border-radius:18px;box-shadow:0 12px 32px rgba(15,23,42,.06)}.practice-card-top{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:18px 24px;border-bottom:1px solid #e6ebf1}.practice-q-number{display:flex;align-items:center;gap:9px}.practice-q-number span{font-size:13px;color:#64748b;font-weight:700}.practice-q-number strong{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:#f1f5f9;color:#0f172a;font-size:15px}.practice-meta{display:flex;align-items:center;gap:12px;color:#475569;font-size:13px;font-weight:700}.difficulty-label{padding:5px 9px;border-radius:999px}.difficulty-label.simple{background:#ecfdf5;color:#047857}.difficulty-label.medium{background:#fffbeb;color:#a16207}.difficulty-label.hard{background:#fff1f2;color:#be123c}
.practice-question-body{min-height:190px;padding:31px 30px 34px;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;color:#111827;font-size:17px;line-height:1.75}.practice-main-text>p:first-child{margin-top:0}.practice-main-text>p:last-child{margin-bottom:0}.math-content p{margin:.55em 0}.math-content table{border-collapse:collapse;margin:18px auto;max-width:100%;font-size:15px}.math-content td,.math-content th{padding:7px 11px;border:1px solid #9aa8b8;text-align:center}.practice-diagram{display:block;max-width:min(100%,620px);max-height:440px;object-fit:contain;margin:24px auto 3px}.practice-subquestion{margin-top:20px;padding-top:18px;border-top:1px dashed #d9e1ea}.practice-subquestion>strong{display:inline-block;margin-right:9px;color:#1d4ed8}
.practice-answer-panel{padding:24px 30px;border-top:1px solid #d6e9df;background:#f4fbf7}.answer-heading{display:flex;align-items:center;gap:11px;margin-bottom:16px}.answer-heading>span{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:#d1fae5;color:#047857;font-weight:900}.answer-heading small,.answer-explanation>small{display:block;color:#047857;font-size:10px;font-weight:900;letter-spacing:1.1px}.answer-heading strong{display:block;margin-top:2px;font-size:15px;color:#173e31}.answer-value{color:#102d24;font-size:16px;line-height:1.65}.answer-explanation{margin-top:18px;padding-top:16px;border-top:1px solid #cee5d7;color:#334155}.answer-explanation>small{margin-bottom:7px}
.practice-card-actions{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:12px;padding:16px 24px;border-top:1px solid #e6ebf1;background:#fbfcfe}.practice-card-actions #practicePrev{justify-self:start}.practice-card-actions #practiceNext{justify-self:end}.practice-answer-btn{min-width:135px;border:1px solid #2563eb;background:#fff;color:#1d4ed8}.practice-answer-btn:hover,.practice-answer-btn.open{background:#eff6ff}
@media(max-width:800px){body[data-page="practice"] .filters{grid-template-columns:1fr 1fr}body[data-page="practice"] .filters .btn{width:100%}.practice-summary{gap:8px 14px}.practice-summary span+span{padding-left:0;border-left:0}.practice-question-body{padding:25px 22px;font-size:16px}.practice-card-actions{grid-template-columns:1fr 1fr}.practice-answer-btn{grid-column:1/-1;grid-row:1}.practice-card-actions #practicePrev{grid-column:1;grid-row:2}.practice-card-actions #practiceNext{grid-column:2;grid-row:2}}
@media(max-width:520px){body[data-page="practice"] .filters{grid-template-columns:1fr}.practice-card-top{padding:15px 17px}.practice-question-body{padding:22px 18px}.practice-answer-panel{padding:20px 18px}.practice-card-actions{padding:14px}.practice-number{width:40px;height:40px;flex-basis:40px}.hero h1{font-size:31px}}

.landing-hero{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(330px,.8fr);gap:42px;align-items:center;padding:34px 38px}.landing-hero h1{margin:13px 0 12px;max-width:650px;font-size:clamp(34px,3.4vw,49px);line-height:1.03}.landing-hero .landing-intro>p{max-width:630px;font-size:15px;line-height:1.65}.learning-roadmap{position:relative;z-index:2;padding:23px 24px;background:rgba(255,255,255,.88);border:1px solid #d9e5f1;border-radius:20px;box-shadow:0 13px 36px rgba(15,23,42,.065)}.roadmap-kicker{font-size:10px;font-weight:900;letter-spacing:1.25px;color:#2563eb}.learning-roadmap h2{margin:7px 0 17px;font-size:19px;letter-spacing:-.35px}.learning-roadmap ol{display:grid;gap:0;margin:0;padding:0;list-style:none}.learning-roadmap li{display:flex;align-items:center;gap:12px;padding:10px 0;border-top:1px solid #e8edf3}.learning-roadmap li>span{display:grid;place-items:center;width:29px;height:29px;flex:0 0 29px;border-radius:9px;background:#eef5ff;color:#1d4ed8;font-size:12px;font-weight:900}.learning-roadmap li strong{display:block;font-size:13px;color:#172033}.learning-roadmap li small{display:block;margin-top:2px;color:#718096;font-size:11px}.landing-hero .hero-actions{margin-top:20px}
@media(max-width:880px){.landing-hero{grid-template-columns:1fr;gap:23px}.learning-roadmap{display:none}}