:root{
  --navy-950:#07152f;--navy-900:#0b1f4d;--navy-800:#12336e;--blue-700:#1c5fd4;--blue-600:#2878f0;--cyan-400:#37d6e8;
  --violet-600:#6d4aff;--orange-500:#ff8a36;--green-500:#19b66b;--red-500:#e94d5f;--amber-500:#f5aa20;
  --ink-900:#101828;--ink-700:#344054;--ink-600:#475467;--ink-500:#667085;--ink-400:#98a2b3;
  --surface:#ffffff;--surface-2:#f7f9fc;--surface-3:#eef3fb;--line:#e4eaf2;--line-strong:#d3dcea;
  --shadow-sm:0 4px 14px rgba(18,40,76,.07);--shadow-md:0 12px 36px rgba(18,40,76,.12);--shadow-lg:0 24px 70px rgba(10,28,63,.18);
  --radius-sm:10px;--radius-md:16px;--radius-lg:24px;--radius-xl:32px;--max:1320px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--surface-2);color:var(--ink-900);font-family:Manrope,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;line-height:1.55;-webkit-font-smoothing:antialiased}body.no-scroll{overflow:hidden}button,input,select,textarea{font:inherit}button,a{touch-action:manipulation}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.skip-link{position:fixed;left:12px;top:-80px;z-index:9999;padding:10px 16px;background:#fff;border-radius:10px;box-shadow:var(--shadow-md)}.skip-link:focus{top:12px}.announcement{height:36px;background:var(--navy-950);color:#d9e8ff;display:flex;align-items:center;justify-content:center;gap:10px;font-size:12px;font-weight:700;letter-spacing:.02em}.announcement .pulse{width:8px;height:8px;border-radius:50%;background:#2ed889;box-shadow:0 0 0 5px rgba(46,216,137,.14)}.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.94);border-bottom:1px solid rgba(220,228,239,.85);backdrop-filter:blur(15px)}.header-inner{max-width:var(--max);height:82px;margin:auto;padding:0 24px;display:flex;align-items:center;gap:34px}.brand{display:inline-flex;align-items:center;gap:12px;flex:none}.brand-mark{width:48px;height:48px;border-radius:15px;display:grid;place-items:center;color:#fff;font-weight:900;font-size:16px;letter-spacing:-.04em;background:linear-gradient(145deg,var(--blue-700),var(--violet-600));box-shadow:0 8px 22px rgba(64,77,220,.23)}.brand-copy{display:flex;flex-direction:column;line-height:1.12}.brand-copy strong{font-size:21px;letter-spacing:-.035em}.brand-copy small{font-size:10px;font-weight:800;color:var(--ink-500);letter-spacing:.12em;text-transform:uppercase;margin-top:5px}.desktop-nav{display:flex;align-items:center;gap:6px;flex:1}.desktop-nav a{padding:11px 14px;border-radius:11px;color:var(--ink-600);font-size:14px;font-weight:750;transition:.2s}.desktop-nav a:hover,.desktop-nav a.active{background:#eef2ff;color:var(--navy-900)}.header-actions{display:flex;align-items:center;gap:10px}.icon-button,.profile-button,.menu-button{border:1px solid var(--line);background:#fff;cursor:pointer;color:var(--navy-900)}.icon-button{width:44px;height:44px;border-radius:13px;font-size:23px;display:grid;place-items:center}.profile-button{width:44px;height:44px;border-radius:50%;font-weight:800;background:linear-gradient(145deg,#eef0ff,#f7eaff)}.menu-button{display:none;width:44px;height:44px;border-radius:13px;padding:11px}.menu-button span{height:2px;background:currentColor;display:block;margin:4px 0;border-radius:2px}.page-loader{min-height:70vh;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--ink-500)}.loader-logo{width:70px;height:70px;border-radius:22px;display:grid;place-items:center;background:linear-gradient(145deg,var(--blue-700),var(--violet-600));color:#fff;font-weight:900;font-size:22px;box-shadow:var(--shadow-md)}.loader-line{width:180px;height:4px;margin:24px 0 8px;border-radius:999px;overflow:hidden;background:#dfe6f2}.loader-line:after{content:"";display:block;width:45%;height:100%;background:linear-gradient(90deg,var(--blue-600),var(--cyan-400));animation:load 1.1s infinite ease-in-out}@keyframes load{0%{transform:translateX(-110%)}100%{transform:translateX(330%)}}
.container{max-width:var(--max);margin:auto;padding:0 24px}.page{min-height:65vh;padding:42px 0 80px}.section{padding:58px 0}.section-soft{background:#f0f5fc}.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px}.section-head h2,.page-title{margin:0;font-size:32px;line-height:1.18;letter-spacing:-.04em}.section-head p,.page-subtitle{margin:8px 0 0;color:var(--ink-500);max-width:700px}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--blue-700);font-size:12px;font-weight:850;letter-spacing:.12em;text-transform:uppercase}.eyebrow:before{content:"";width:20px;height:3px;border-radius:3px;background:var(--cyan-400)}.text-link{color:var(--blue-700);font-weight:750;font-size:14px}.muted{color:var(--ink-500)}.small{font-size:13px}.hidden{display:none!important}
.hero{padding:36px 0 24px}.hero-panel{position:relative;overflow:hidden;min-height:510px;border-radius:32px;color:#fff;background:radial-gradient(circle at 87% 18%,rgba(80,98,255,.8),transparent 27%),radial-gradient(circle at 70% 110%,rgba(119,22,220,.75),transparent 36%),linear-gradient(132deg,#08132f 0%,#10265a 50%,#291176 100%);box-shadow:var(--shadow-lg);padding:58px 60px;display:grid;grid-template-columns:minmax(0,1.2fr) minmax(340px,.8fr);gap:42px;align-items:center}.hero-panel:after{content:"";position:absolute;width:470px;height:470px;border:1px solid rgba(255,255,255,.08);border-radius:50%;right:-120px;bottom:-285px;box-shadow:0 0 0 60px rgba(255,255,255,.025),0 0 0 120px rgba(255,255,255,.02)}.hero-copy{position:relative;z-index:1}.hero .eyebrow{color:#cdefff}.hero-copy h1{font-size:64px;line-height:1.04;margin:22px 0 22px;letter-spacing:-.065em;max-width:720px}.gradient-text{color:#79e7f2}.hero-copy>p{max-width:680px;color:#cad5ef;font-size:17px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:48px;padding:0 19px;border:0;border-radius:12px;font-weight:800;font-size:14px;cursor:pointer;transition:.18s}.btn:hover{transform:translateY(-1px)}.btn-primary{background:var(--blue-600);color:#fff;box-shadow:0 8px 20px rgba(40,120,240,.23)}.btn-white{background:#fff;color:var(--navy-900)}.btn-outline{background:transparent;border:1px solid var(--line-strong);color:var(--ink-700)}.btn-dark-outline{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.22);color:#fff}.btn-danger{background:#fff1f3;color:#c33149}.btn-sm{min-height:40px;padding:0 14px}.hero-features{display:flex;flex-wrap:wrap;gap:18px;margin-top:28px;color:#d3e0f5;font-size:13px;font-weight:700}.hero-features span:before{content:"✓";color:#66e5e9;margin-right:7px}.journey-card{position:relative;z-index:2;background:rgba(255,255,255,.97);color:var(--ink-900);border-radius:25px;padding:26px;box-shadow:0 28px 55px rgba(0,0,0,.2)}.journey-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}.journey-head h3{margin:0;font-size:20px}.live-pill{background:#dcfce7;color:#12804a;border-radius:99px;padding:7px 11px;font-size:11px;font-weight:850}.stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.stat-box{padding:18px;border:1px solid var(--line);background:#fafbfe;border-radius:15px}.stat-box strong{display:block;font-size:24px;color:var(--navy-900)}.stat-box span{font-size:12px;color:var(--ink-500);font-weight:650}.progress{height:8px;background:#e9eef8;border-radius:99px;overflow:hidden;margin:19px 0}.progress>i{display:block;height:100%;width:34%;background:linear-gradient(90deg,var(--blue-600),var(--cyan-400));border-radius:99px}.journey-link{color:var(--blue-700);font-size:13px;font-weight:800}
.exam-grid,.series-grid,.test-grid,.feature-grid,.metric-grid{display:grid;gap:18px}.exam-grid{grid-template-columns:repeat(6,1fr)}.series-grid{grid-template-columns:repeat(3,1fr)}.test-grid{grid-template-columns:repeat(3,1fr)}.feature-grid{grid-template-columns:repeat(3,1fr)}.metric-grid{grid-template-columns:repeat(4,1fr)}.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);box-shadow:var(--shadow-sm)}.exam-card{padding:22px;min-height:155px;display:flex;flex-direction:column;justify-content:space-between;transition:.2s}.exam-card:hover,.series-card:hover,.test-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#c9d8f3}.exam-icon{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;background:#eef3ff;color:var(--blue-700);font-weight:900}.exam-card h3{font-size:15px;margin:16px 0 3px}.exam-card p{font-size:12px;color:var(--ink-500);margin:0}.series-card{overflow:hidden;transition:.2s}.series-cover{height:130px;padding:20px;color:#fff;background:linear-gradient(135deg,var(--navy-900),var(--violet-600));position:relative}.series-cover:after{content:"";position:absolute;width:160px;height:160px;border-radius:50%;right:-65px;bottom:-95px;border:26px solid rgba(255,255,255,.08)}.series-cover small{font-size:11px;text-transform:uppercase;letter-spacing:.08em;font-weight:800;opacity:.85}.series-cover h3{margin:8px 0 0;line-height:1.25;font-size:20px;max-width:230px}.series-body{padding:18px}.series-meta{display:flex;justify-content:space-between;color:var(--ink-500);font-size:12px;font-weight:650}.series-body .btn{width:100%;margin-top:16px}.test-card{padding:20px;display:flex;flex-direction:column;min-height:245px;transition:.2s}.card-topline{display:flex;align-items:center;justify-content:space-between;gap:10px}.badge{display:inline-flex;align-items:center;border-radius:99px;padding:6px 10px;font-size:10px;font-weight:850;letter-spacing:.04em;text-transform:uppercase}.badge-free{background:#eafbf2;color:#0f8b50}.badge-live{background:#fff2e8;color:#c75a0c}.badge-mock{background:#eef3ff;color:#315fc1}.badge-pyq{background:#fff8df;color:#9a6500}.test-card h3{font-size:17px;line-height:1.35;margin:16px 0 9px}.test-card .series-label{font-size:12px;color:var(--blue-700);font-weight:750}.test-meta{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:17px 0}.test-meta span{padding:9px 5px;background:var(--surface-2);border-radius:9px;text-align:center;font-size:11px;color:var(--ink-600)}.test-card .btn{width:100%;margin-top:auto}.feature-card{padding:26px}.feature-card .feature-number{font-size:12px;color:var(--blue-700);font-weight:900}.feature-card h3{margin:13px 0 9px;font-size:18px}.feature-card p{margin:0;color:var(--ink-500);font-size:14px}.metric-card{padding:22px}.metric-card small{color:var(--ink-500);font-weight:650}.metric-card strong{display:block;font-size:28px;margin-top:6px;color:var(--navy-900)}
.page-hero{padding:42px 0 30px;background:linear-gradient(180deg,#f3f6ff,transparent)}.breadcrumb{display:flex;gap:8px;align-items:center;color:var(--ink-500);font-size:12px;margin-bottom:20px}.breadcrumb a{color:var(--blue-700)}.filter-bar{display:flex;gap:10px;flex-wrap:wrap;margin:22px 0}.filter-chip{border:1px solid var(--line);background:#fff;border-radius:99px;padding:9px 14px;font-size:12px;font-weight:750;cursor:pointer;color:var(--ink-600)}.filter-chip.active{background:var(--navy-900);border-color:var(--navy-900);color:#fff}.search-inline{min-width:260px;flex:1;display:flex;align-items:center;gap:9px;background:#fff;border:1px solid var(--line);padding:0 14px;border-radius:12px}.search-inline input{width:100%;height:44px;border:0;outline:0;background:transparent}.empty-state,.error-state{padding:58px 25px;text-align:center;background:#fff;border:1px dashed var(--line-strong);border-radius:var(--radius-lg)}.empty-state .empty-icon,.error-state .empty-icon{width:70px;height:70px;border-radius:22px;margin:0 auto 18px;display:grid;place-items:center;background:#eef3ff;color:var(--blue-700);font-size:30px}.empty-state h3,.error-state h3{margin:0 0 8px}.empty-state p,.error-state p{margin:0 auto 20px;max-width:500px;color:var(--ink-500)}.skeleton{background:linear-gradient(90deg,#edf1f7 25%,#f8fafd 37%,#edf1f7 63%);background-size:400% 100%;animation:shine 1.4s infinite;border-radius:10px}@keyframes shine{0%{background-position:100% 0}100%{background-position:-100% 0}}
.details-layout{display:grid;grid-template-columns:minmax(0,1fr) 380px;gap:28px;align-items:start}.details-card{padding:28px}.details-card h1{font-size:34px;line-height:1.2;margin:12px 0}.details-summary{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:24px 0}.details-summary div{background:var(--surface-2);padding:15px;border-radius:12px}.details-summary strong{display:block;color:var(--navy-900)}.details-summary span{font-size:11px;color:var(--ink-500)}.section-table{width:100%;border-collapse:collapse;font-size:13px}.section-table th,.section-table td{padding:13px 14px;border-bottom:1px solid var(--line);text-align:left}.section-table th{color:var(--ink-500);font-size:11px;text-transform:uppercase;letter-spacing:.05em;background:#f8fafd}.start-card{position:sticky;top:125px;padding:24px}.start-card .btn{width:100%;margin-top:12px}.start-card ul{list-style:none;padding:0;margin:18px 0}.start-card li{padding:9px 0;border-bottom:1px solid var(--line);font-size:13px;color:var(--ink-600)}.start-card li b{float:right;color:var(--ink-900)}.pattern-list{display:grid;gap:10px;margin:15px 0}.pattern-option{border:1px solid var(--line);border-radius:12px;padding:13px;display:flex;gap:11px;align-items:flex-start}.pattern-option i{width:33px;height:33px;display:grid;place-items:center;border-radius:10px;background:#eef3ff;color:var(--blue-700);font-style:normal;font-weight:900}.pattern-option strong{display:block;font-size:13px}.pattern-option small{display:block;color:var(--ink-500);font-size:11px;margin-top:2px}
.dashboard-grid{display:grid;grid-template-columns:280px minmax(0,1fr);gap:24px}.dashboard-sidebar{padding:16px;position:sticky;top:125px}.dashboard-user{padding:14px;display:flex;gap:12px;align-items:center;border-bottom:1px solid var(--line);margin-bottom:10px}.avatar{width:45px;height:45px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(145deg,#dfe7ff,#f0e4ff);color:var(--navy-900);font-weight:900}.dashboard-user b{display:block}.dashboard-user small{color:var(--ink-500)}.dashboard-nav{display:grid;gap:4px}.dashboard-nav a{padding:11px 12px;border-radius:10px;color:var(--ink-600);font-size:13px;font-weight:700}.dashboard-nav a.active,.dashboard-nav a:hover{background:#eef3ff;color:var(--navy-900)}.activity-list,.leaderboard-list{display:grid;gap:10px}.activity-row,.leaderboard-row{display:grid;grid-template-columns:1fr auto;gap:16px;align-items:center;padding:15px 17px;background:#fff;border:1px solid var(--line);border-radius:13px}.activity-row h4,.leaderboard-row h4{margin:0;font-size:14px}.activity-row p,.leaderboard-row p{margin:4px 0 0;font-size:11px;color:var(--ink-500)}.score-pill{padding:7px 11px;border-radius:9px;background:#eef3ff;color:var(--blue-700);font-size:12px;font-weight:850}.leaderboard-row{grid-template-columns:48px 1fr auto}.rank-number{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:#f1f4f9;color:var(--navy-900);font-weight:900}.rank-number.top{background:#fff0bd;color:#8e5f00}.profile-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.profile-field{padding:17px;background:#fff;border:1px solid var(--line);border-radius:13px}.profile-field label{display:block;font-size:11px;color:var(--ink-500);text-transform:uppercase;letter-spacing:.06em;font-weight:750}.profile-field strong{display:block;margin-top:5px}.result-card{padding:20px;display:grid;grid-template-columns:1fr repeat(5,110px);gap:10px;align-items:center}.result-card h3{margin:0;font-size:15px}.result-metric{text-align:center}.result-metric strong{display:block;color:var(--navy-900)}.result-metric span{font-size:10px;color:var(--ink-500)}
.site-footer{background:var(--navy-950);color:#cbd6eb;margin-top:30px}.footer-inner{max-width:var(--max);margin:auto;padding:50px 24px 26px}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:45px}.footer-about p{max-width:430px;color:#93a5c5;font-size:13px}.footer-title{color:#fff;font-size:12px;text-transform:uppercase;letter-spacing:.12em;margin-bottom:14px}.footer-links{display:grid;gap:10px}.footer-links a{font-size:13px;color:#9fb0cf}.footer-links a:hover{color:#fff}.footer-bottom{border-top:1px solid rgba(255,255,255,.09);margin-top:34px;padding-top:20px;display:flex;justify-content:space-between;font-size:11px;color:#7f91b2}.mobile-bottom-nav{display:none}.drawer-backdrop,.modal-backdrop{position:fixed;inset:0;z-index:500;background:rgba(5,17,42,.55);backdrop-filter:blur(5px)}.drawer-backdrop[hidden],.modal-backdrop[hidden],.account-popover[hidden]{display:none}.mobile-drawer{position:absolute;right:0;top:0;width:min(360px,90vw);height:100%;background:#fff;padding:18px;box-shadow:var(--shadow-lg);overflow:auto}.drawer-head{display:flex;justify-content:space-between;align-items:center;padding-bottom:16px;border-bottom:1px solid var(--line)}.drawer-head .brand-mark{width:42px;height:42px}.drawer-head .brand-copy strong{font-size:18px}.mobile-drawer nav{display:grid;gap:4px;padding:18px 0}.mobile-drawer nav a{padding:12px 14px;border-radius:11px;font-weight:700;color:var(--ink-600)}.mobile-drawer nav a.active{background:#eef3ff;color:var(--navy-900)}.drawer-account{margin-top:20px;border-top:1px solid var(--line);padding-top:18px}.modal-backdrop{display:grid;place-items:center;padding:20px}.modal{position:relative;width:min(720px,100%);max-height:90vh;overflow:auto;background:#fff;border-radius:24px;box-shadow:var(--shadow-lg);padding:28px}.modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:20px}.modal-head h2{margin:4px 0 0;font-size:28px}.modal-close{flex:none}.search-field{display:flex;align-items:center;gap:10px;margin:22px 0;padding:0 15px;border:1px solid var(--line-strong);border-radius:13px}.search-field input{height:52px;border:0;outline:0;flex:1}.search-results{display:grid;gap:9px}.search-result{display:grid;grid-template-columns:1fr auto;gap:12px;padding:13px;border:1px solid var(--line);border-radius:11px}.search-result h4{margin:0;font-size:13px}.search-result p{margin:3px 0 0;font-size:11px;color:var(--ink-500)}.auth-modal{width:min(460px,100%);padding:31px}.auth-close{position:absolute;right:17px;top:17px}.auth-brand{display:flex;gap:12px;align-items:center;margin-bottom:22px}.auth-brand span:last-child{display:flex;flex-direction:column}.auth-brand small{color:var(--ink-500)}.auth-tabs{display:grid;grid-template-columns:1fr 1fr;background:#f1f4f8;border-radius:12px;padding:4px;margin-bottom:22px}.auth-tabs button{border:0;background:transparent;border-radius:9px;padding:10px;font-weight:800;cursor:pointer;color:var(--ink-500)}.auth-tabs button.active{background:#fff;color:var(--navy-900);box-shadow:var(--shadow-sm)}.form-group{margin-bottom:14px}.form-group label{display:block;font-size:12px;font-weight:750;margin-bottom:6px}.input{width:100%;height:48px;border:1px solid var(--line-strong);border-radius:11px;padding:0 13px;outline:none;background:#fff}.input:focus{border-color:var(--blue-600);box-shadow:0 0 0 3px rgba(40,120,240,.12)}.auth-form .btn{width:100%;margin-top:5px}.form-message{font-size:12px;border-radius:9px;padding:10px 12px;margin-bottom:13px}.form-error{background:#fff1f3;color:#b52f45}.form-success{background:#eafbf2;color:#0c7d47}.account-popover{position:fixed;z-index:300;top:124px;right:max(24px,calc((100vw - var(--max))/2 + 24px));width:260px;padding:10px;background:#fff;border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow-md)}.account-popover a,.account-popover button{width:100%;display:flex;padding:10px 12px;border:0;background:transparent;border-radius:9px;text-align:left;font-size:13px;font-weight:700;color:var(--ink-600);cursor:pointer}.account-popover a:hover,.account-popover button:hover{background:#f1f5fb;color:var(--navy-900)}.account-popover .account-summary{padding:11px 12px;border-bottom:1px solid var(--line);margin-bottom:5px}.account-summary b{display:block}.account-summary small{color:var(--ink-500)}.toast-stack{position:fixed;z-index:900;right:20px;bottom:20px;display:grid;gap:10px}.toast{min-width:270px;max-width:390px;background:var(--navy-950);color:#fff;border-radius:12px;padding:14px 16px;box-shadow:var(--shadow-lg);font-size:13px;animation:toastIn .2s ease}.toast.error{background:#9e2438}.toast.success{background:#0f7d4b}@keyframes toastIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
@media(max-width:1120px){.desktop-nav{display:none}.menu-button{display:block}.hero-panel{grid-template-columns:1fr;min-height:auto}.journey-card{max-width:680px}.exam-grid{grid-template-columns:repeat(3,1fr)}.series-grid,.test-grid{grid-template-columns:repeat(2,1fr)}.details-layout{grid-template-columns:1fr}.start-card{position:static}.dashboard-grid{grid-template-columns:1fr}.dashboard-sidebar{position:static}.dashboard-nav{grid-template-columns:repeat(4,1fr)}.footer-grid{grid-template-columns:1.4fr repeat(2,1fr)}.footer-grid>div:last-child{display:none}.result-card{grid-template-columns:1fr repeat(3,90px)}}
@media(max-width:760px){body{padding-bottom:70px}.announcement{height:30px;font-size:9px;gap:6px}.header-inner{height:68px;padding:0 15px}.brand-mark{width:42px;height:42px;border-radius:13px}.brand-copy strong{font-size:18px}.brand-copy small{font-size:8px}.header-actions{gap:7px}.icon-button,.profile-button,.menu-button{width:40px;height:40px}.site-header .icon-button{display:none}.hero{padding:18px 0}.container{padding:0 15px}.hero-panel{border-radius:22px;padding:33px 23px;gap:25px}.hero-copy h1{font-size:42px;margin:16px 0}.hero-copy>p{font-size:14px}.journey-card{padding:19px}.section{padding:38px 0}.section-head{align-items:flex-start}.section-head h2,.page-title{font-size:25px}.exam-grid{grid-template-columns:repeat(2,1fr)}.series-grid,.test-grid,.feature-grid,.metric-grid{grid-template-columns:1fr}.exam-card{min-height:135px}.details-summary{grid-template-columns:repeat(2,1fr)}.details-card{padding:20px}.details-card h1{font-size:28px}.dashboard-nav{grid-template-columns:repeat(2,1fr)}.profile-grid{grid-template-columns:1fr}.result-card{grid-template-columns:1fr 1fr;padding:16px}.result-card>div:first-child{grid-column:1/-1}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-about{grid-column:1/-1}.footer-bottom{display:block}.mobile-bottom-nav{position:fixed;z-index:150;left:0;right:0;bottom:0;height:68px;padding-bottom:env(safe-area-inset-bottom);background:rgba(255,255,255,.97);border-top:1px solid var(--line);display:grid;grid-template-columns:repeat(5,1fr);box-shadow:0 -8px 30px rgba(18,40,76,.08)}.mobile-bottom-nav a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;color:var(--ink-400)}.mobile-bottom-nav a span{font-size:21px;line-height:1}.mobile-bottom-nav a small{font-size:9px;font-weight:750}.mobile-bottom-nav a.active{color:var(--blue-700)}.account-popover{top:105px;right:15px}.site-footer{margin-bottom:0}.footer-inner{padding-bottom:30px}.modal{padding:21px;border-radius:19px}.search-modal{align-self:start;margin-top:50px}.toast-stack{left:14px;right:14px;bottom:85px}.toast{min-width:0}.section-table{display:block;overflow:auto;white-space:nowrap}}
@media(max-width:420px){.brand-copy small{display:none}.hero-copy h1{font-size:38px}.hero-actions .btn{width:100%}.hero-features{display:grid;gap:7px}.stat-box{padding:14px}.footer-grid{grid-template-columns:1fr}.footer-grid>div:nth-child(3){display:none}.exam-grid{gap:12px}.exam-card{padding:16px}.test-meta{grid-template-columns:1fr 1fr}.test-meta span:last-child{grid-column:1/-1}.header-actions .profile-button{display:none}}

.homepage-pin{position:absolute;right:14px;top:14px;padding:5px 9px;border-radius:999px;background:#f59e0b;color:#111827;font-size:10px;font-weight:900;text-transform:uppercase;letter-spacing:.05em}.series-cover{position:relative}


/* Stage 3A.3 — professional test-series discovery and detail experience */
.series-grid{grid-template-columns:repeat(4,minmax(0,1fr))}
.series-list-hero{padding-bottom:34px;background:linear-gradient(180deg,#f7faff 0%,#eef4fc 100%)}
.series-list-page{padding-top:28px}
.series-discovery-bar{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:24px;padding:21px 23px;border:1px solid var(--line);border-radius:20px;background:#fff;box-shadow:var(--shadow-sm)}
.series-discovery-bar h2{margin:0;font-size:20px;letter-spacing:-.025em}.series-discovery-bar p{margin:5px 0 0;color:var(--ink-500);font-size:13px}.series-discovery-bar .search-inline{width:min(420px,100%)}
.series-orbit-grid{align-items:stretch}
.series-orbit-card{position:relative;aspect-ratio:1/1;min-height:285px;padding:20px;border-radius:26px;display:flex;flex-direction:column;align-items:center;text-align:center;overflow:hidden;transition:transform .2s,box-shadow .2s,border-color .2s;background:linear-gradient(180deg,#fff 0%,#fbfcff 100%)}
.series-orbit-card:before{content:"";position:absolute;left:-48px;top:-52px;width:150px;height:150px;border-radius:50%;background:var(--series-soft);opacity:.72}.series-orbit-card:after{content:"";position:absolute;right:-58px;bottom:-70px;width:170px;height:170px;border-radius:50%;border:28px solid var(--series-soft);opacity:.58}
.series-orbit-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:var(--series-border)}
.series-card-top{position:relative;z-index:2;width:100%;min-height:24px;display:flex;justify-content:center;align-items:center}.series-exam-label{padding:5px 10px;border-radius:999px;background:var(--series-soft);color:var(--series-dark);font-size:10px;font-weight:850;text-transform:uppercase;letter-spacing:.08em}.series-orbit-card .homepage-pin{position:static;background:#fff4cf;color:#8b5c00;border:1px solid #f7d982}
.series-orbit{position:relative;z-index:2;width:82px;height:82px;margin:12px auto 10px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(145deg,var(--series-main),var(--series-dark));color:#fff;box-shadow:0 12px 28px var(--series-shadow);border:7px solid #fff}
.series-orbit:after{content:"";position:absolute;inset:-12px;border:1px solid var(--series-border);border-radius:50%;opacity:.9}.series-orbit span{font-size:23px;font-weight:900;letter-spacing:-.05em}
.series-card-copy{position:relative;z-index:2;min-height:93px}.series-card-copy h3{margin:5px 0 7px;font-size:17px;line-height:1.28;letter-spacing:-.025em}.series-card-copy p{margin:0;color:var(--ink-500);font-size:11px;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden}
.series-card-stats{position:relative;z-index:2;display:flex;justify-content:center;gap:8px;margin-top:auto}.series-card-stats span{padding:6px 9px;border-radius:10px;background:#f3f6fb;color:var(--ink-600);font-size:10px}.series-card-stats b{color:var(--series-dark)}.series-card-link{position:relative;z-index:2;margin-top:12px;color:var(--series-dark);font-size:12px;font-weight:850}.series-card-link b{font-size:15px}
.tone-blue{--series-main:#367ef2;--series-dark:#174db5;--series-soft:#e8f1ff;--series-border:#bcd3fa;--series-shadow:rgba(54,126,242,.28)}.tone-violet{--series-main:#7957ee;--series-dark:#4d2db9;--series-soft:#efeaff;--series-border:#d1c3fb;--series-shadow:rgba(121,87,238,.27)}.tone-teal{--series-main:#20b7ac;--series-dark:#087c75;--series-soft:#e2f9f6;--series-border:#a9e5df;--series-shadow:rgba(32,183,172,.25)}.tone-orange{--series-main:#f59b42;--series-dark:#b86212;--series-soft:#fff1df;--series-border:#f6d2a7;--series-shadow:rgba(245,155,66,.25)}.tone-green{--series-main:#35b86f;--series-dark:#157744;--series-soft:#e4f8ec;--series-border:#b4e7ca;--series-shadow:rgba(53,184,111,.25)}.tone-rose{--series-main:#ea6d8c;--series-dark:#ae3454;--series-soft:#ffe9ef;--series-border:#f4bdcc;--series-shadow:rgba(234,109,140,.25)}
.series-detail-page{padding-top:30px}.series-detail-page .breadcrumb{margin-bottom:20px}.series-detail-page .breadcrumb span:last-child{max-width:420px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.series-detail-skeleton{height:340px;border-radius:28px}
.series-detail-hero{--series-main:#367ef2;--series-dark:#174db5;--series-soft:#e8f1ff;--series-border:#bcd3fa;--series-shadow:rgba(54,126,242,.28);position:relative;overflow:hidden;min-height:315px;padding:42px;border-radius:30px;color:#fff;background:radial-gradient(circle at 92% 8%,rgba(255,255,255,.18),transparent 27%),linear-gradient(135deg,var(--series-dark),var(--series-main));display:grid;grid-template-columns:1fr 270px;gap:34px;align-items:center;box-shadow:0 24px 60px var(--series-shadow)}
.series-detail-hero:after{content:"";position:absolute;width:330px;height:330px;border-radius:50%;right:-160px;bottom:-220px;border:54px solid rgba(255,255,255,.08)}
.series-detail-primary{position:relative;z-index:2;display:flex;gap:27px;align-items:center}.series-orbit-large{flex:0 0 118px;width:118px;height:118px;margin:0;border-width:8px}.series-orbit-large span{font-size:34px}.series-detail-copy h1{margin:7px 0 13px;font-size:38px;line-height:1.12;letter-spacing:-.05em}.series-detail-copy p{max-width:720px;margin:0;color:rgba(255,255,255,.82);font-size:14px}.series-detail-exam{display:inline-flex;padding:6px 10px;border-radius:999px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.2);font-size:10px;font-weight:850;text-transform:uppercase;letter-spacing:.1em}.series-detail-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:19px}.series-detail-badges span{padding:7px 10px;border-radius:9px;background:rgba(255,255,255,.11);font-size:10px;font-weight:750}
.series-detail-action{position:relative;z-index:2;padding:23px;border-radius:20px;background:rgba(5,20,55,.25);border:1px solid rgba(255,255,255,.2);backdrop-filter:blur(6px)}.series-detail-action>span{display:block;color:rgba(255,255,255,.75)}.series-detail-action>strong{display:block;margin:6px 0 17px;font-size:21px}.series-detail-action .btn{width:100%}
.series-roadmap{margin:22px 0 44px;display:grid;grid-template-columns:repeat(5,1fr);gap:12px}.series-roadmap>div{padding:18px 14px;border:1px solid var(--line);border-radius:17px;background:#fff;display:grid;grid-template-columns:auto 1fr;grid-template-rows:auto auto;column-gap:11px;align-items:center;box-shadow:var(--shadow-sm)}.roadmap-icon{grid-row:1/3;width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:#edf3ff;color:var(--blue-700);font-weight:900}.series-roadmap strong{font-size:21px;line-height:1.1}.series-roadmap small{color:var(--ink-500);font-size:10px;font-weight:700}
.series-tests-section{padding-bottom:20px}.series-tests-head h2{margin:5px 0 5px;font-size:28px;letter-spacing:-.04em}.series-tests-head p{margin:0;color:var(--ink-500);font-size:13px}.series-filter-tabs{display:flex;gap:8px;overflow-x:auto;padding:21px 0 20px;scrollbar-width:none}.series-filter-tabs::-webkit-scrollbar{display:none}.series-filter-tabs button{white-space:nowrap;border:1px solid var(--line);background:#fff;color:var(--ink-600);border-radius:999px;padding:10px 14px;font-size:12px;font-weight:800;cursor:pointer}.series-filter-tabs button span{display:inline-grid;place-items:center;min-width:22px;height:22px;margin-left:6px;padding:0 6px;border-radius:999px;background:#eef2f8;font-size:10px}.series-filter-tabs button.active{background:var(--navy-900);border-color:var(--navy-900);color:#fff}.series-filter-tabs button.active span{background:rgba(255,255,255,.17)}
@media(max-width:1120px){.series-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.series-detail-hero{grid-template-columns:1fr}.series-detail-action{max-width:440px}.series-roadmap{grid-template-columns:repeat(3,1fr)}}
@media(max-width:760px){.series-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.series-orbit-card{min-height:245px;padding:15px;border-radius:20px}.series-orbit{width:68px;height:68px;border-width:5px}.series-orbit span{font-size:19px}.series-card-copy{min-height:83px}.series-card-copy h3{font-size:14px}.series-card-copy p{font-size:10px}.series-card-stats span{padding:5px 6px;font-size:9px}.series-discovery-bar{align-items:stretch;flex-direction:column;padding:18px}.series-discovery-bar .search-inline{width:100%}.series-detail-page{padding-top:18px}.series-detail-hero{padding:27px 21px;border-radius:23px}.series-detail-primary{display:block}.series-orbit-large{width:90px;height:90px;margin:0 0 19px}.series-detail-copy h1{font-size:30px}.series-detail-action{max-width:none}.series-roadmap{grid-template-columns:repeat(2,1fr);margin-bottom:34px}.series-roadmap>div:last-child{grid-column:1/-1}.series-tests-head h2{font-size:24px}}
@media(max-width:420px){.series-orbit-card{aspect-ratio:auto;min-height:238px}.series-card-copy p{display:none}.series-roadmap{gap:9px}.series-roadmap>div{padding:14px 10px}.roadmap-icon{width:32px;height:32px}}

/* Stage 3A.4 — pre-instruction pattern choice, categories and chapter tests */
.badge-chapter{background:#fff0d7;color:#9a5200;border:1px solid #f4cf94}.series-roadmap{grid-template-columns:repeat(6,1fr)}
.series-category-strip{margin:0 0 34px;padding:24px;border:1px solid var(--line);border-radius:22px;background:linear-gradient(135deg,#f8fbff,#eef4ff);box-shadow:var(--shadow-sm)}.series-category-strip h2{margin:4px 0 0;font-size:23px}.series-category-cards{display:flex;gap:12px;overflow:auto;margin-top:18px;padding-bottom:4px;scrollbar-width:thin}.series-category-card{flex:0 0 210px;display:flex;gap:12px;align-items:center;padding:15px;border:1px solid #dbe5f3;border-radius:17px;background:#fff;text-align:left;cursor:pointer;transition:.18s transform,.18s box-shadow,.18s border-color}.series-category-card:hover,.series-category-card.active{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:var(--blue-400)}.series-category-card>span{width:48px;height:48px;display:grid;place-items:center;border-radius:15px;background:var(--cat-soft,#e8f1ff);color:var(--cat-main,#245fc4);font-weight:900}.series-category-card strong,.series-category-card small{display:block}.series-category-card small{margin-top:4px;color:var(--ink-500)}.series-category-card.tone-1{--cat-main:#245fc4;--cat-soft:#e8f1ff}.series-category-card.tone-2{--cat-main:#7c3aed;--cat-soft:#f1eaff}.series-category-card.tone-3{--cat-main:#0f8b7f;--cat-soft:#e4f8f5}.series-category-card.tone-4{--cat-main:#c06612;--cat-soft:#fff1dd}.series-category-card.tone-5{--cat-main:#b83263;--cat-soft:#ffe9f1}
.pattern-preference-page{padding-top:30px}.pattern-page-skeleton{height:520px;border-radius:28px}.pattern-preference-hero{padding:34px;border-radius:28px;background:radial-gradient(circle at 90% 0,rgba(255,255,255,.18),transparent 30%),linear-gradient(135deg,#0b2f63,#2869c7);color:#fff;box-shadow:0 22px 54px rgba(30,86,164,.24)}.pattern-preference-hero h1{margin:6px 0 10px;font-size:38px;letter-spacing:-.045em}.pattern-preference-hero p{max-width:720px;margin:0;color:#dbeafe}.pattern-test-name{display:flex;justify-content:space-between;gap:20px;margin-top:22px;padding:14px 16px;border:1px solid rgba(255,255,255,.2);border-radius:14px;background:rgba(6,25,62,.25)}.pattern-test-name span{color:#dbeafe}.pattern-preference-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:24px 0}.pattern-preference-card{position:relative;min-height:230px;padding:24px;border:2px solid var(--line);border-radius:23px;background:#fff;text-align:left;cursor:pointer;box-shadow:var(--shadow-sm);transition:.2s transform,.2s box-shadow,.2s border-color}.pattern-preference-card:hover:not(:disabled){transform:translateY(-4px);box-shadow:var(--shadow-md)}.pattern-preference-card.selected{border-color:var(--blue-600);box-shadow:0 0 0 4px rgba(37,99,235,.1),var(--shadow-md)}.pattern-preference-card.locked:disabled{opacity:.42;cursor:not-allowed}.pattern-preference-card.locked.selected{opacity:1}.pattern-preference-icon{width:72px;height:72px;display:grid;place-items:center;border-radius:22px;background:#eaf2ff;color:#174ea6;font-size:20px;font-weight:900}.pattern-preference-copy{display:block;margin-top:20px}.pattern-preference-copy strong,.pattern-preference-copy small{display:block}.pattern-preference-copy strong{font-size:19px}.pattern-preference-copy small{margin-top:8px;color:var(--ink-500);line-height:1.55}.pattern-preference-card>i{position:absolute;right:18px;top:18px;width:28px;height:28px;display:grid;place-items:center;border-radius:50%;background:var(--blue-600);color:#fff;font-style:normal;font-weight:900}.pattern-fixed-note{padding:13px 16px;border-radius:13px;background:#fff8e7;color:#7a5200;border:1px solid #f0d698}.pattern-preference-actions{display:flex;justify-content:space-between;gap:12px;margin-top:20px}.pattern-preference-actions .btn{min-width:220px}
@media(max-width:1120px){.series-roadmap{grid-template-columns:repeat(3,1fr)}}
@media(max-width:760px){.pattern-preference-hero{padding:26px 20px}.pattern-preference-hero h1{font-size:30px}.pattern-test-name{display:grid}.pattern-preference-grid{grid-template-columns:1fr}.pattern-preference-card{min-height:0}.pattern-preference-actions{display:grid}.pattern-preference-actions .btn{width:100%;min-width:0}.series-category-strip{padding:18px}.series-category-card{flex-basis:180px}.series-roadmap{grid-template-columns:repeat(2,1fr)}.series-roadmap>div:last-child{grid-column:auto}}