:root{--yellow:#efff00;--blue:#009dff;--bg:#030a10;--panel:#07131d;--muted:#afbfce;--line:#1b3040}body{background:#030a10;font-family:Arial,Helvetica,sans-serif}.wrap{width:min(1400px,94%)}.top{position:relative;background:#040d16}.nav{height:74px}.brand{font-size:36px;letter-spacing:-2px;line-height:.85}.brand .logo{display:none}.brand small{display:block;color:white;font-size:10px;letter-spacing:8px;margin-top:8px}.brand span{color:#f4f7fa}.brand span::first-letter{color:var(--yellow)}.navlinks{font-size:14px;gap:26px;color:#e8edf5}.navlinks a{padding:27px 0}.navlinks a.active{color:var(--yellow);border-bottom:3px solid var(--yellow)}.nav-search{width:290px;background:#030c14;border:1px solid #203443;padding:11px 16px;border-radius:16px;color:white;font-size:14px}.pill{color:white}.nav-cta{background:var(--yellow);color:#020608;padding:13px 22px;border:0;border-radius:9px;font-weight:bold}.hero{padding:38px 0 0;min-height:430px;position:relative;overflow:hidden;background:#06101b}.hero .hero-photo{position:absolute;inset:0;background-position:center 43%;background-size:cover;opacity:.82}.hero:after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,#030a12 0%,rgba(3,10,18,.92) 30%,rgba(3,10,18,.1) 75%),linear-gradient(0deg,#030a12,transparent 50%);pointer-events:none}.hero .hero-grid,.hero .carousel-controls,.feature-strip{position:relative;z-index:2}.hero .hero-grid{display:block;padding-left:35px}.hero h1{font-size:clamp(38px,4.5vw,64px);font-weight:950;letter-spacing:-2px;line-height:.98;text-transform:uppercase;margin:20px 0 10px;max-width:650px}.hero h1 b{color:var(--yellow);text-shadow:none}.hero .eyebrow{font-size:12px;letter-spacing:3px}.dot{height:3px;width:42px;border-radius:0;margin-right:16px}.hero .lead{color:#e8edf3;font-size:18px;line-height:1.3;max-width:510px;margin:12px 0}.btn{border-radius:8px;font-size:14px}.btn.primary{background:var(--yellow);color:#080e00;box-shadow:0 0 16px #efff0018}.hero .actions{margin-top:22px}.hero .actions .btn{padding:14px 26px;text-transform:uppercase}.hero #changeGoal{border-color:var(--blue);color:var(--blue);background:#020b12}.carousel-controls{display:flex;justify-content:flex-end;margin-top:-30px;min-height:32px;gap:12px}.carousel-controls>div:first-child{display:none}.slide-buttons{opacity:.8}.slide-buttons select{max-width:160px}.feature-strip{display:grid;grid-template-columns:repeat(4,1fr);margin:25px auto 0;padding:20px 35px 24px;gap:28px}.feature{display:flex;align-items:center;gap:16px;border-right:1px solid #274253}.feature:last-child{border:0}.feature svg{color:var(--blue);width:34px;height:34px}.feature strong{display:block;font-size:17px;text-transform:uppercase}.feature small{display:block;color:#b4c5d8;font-size:12px;margin-top:5px;text-transform:uppercase}.app-shell{display:grid;grid-template-columns:246px minmax(0,1fr) 266px;gap:18px;padding-top:20px;align-items:start}.side-menu,.info-card,.workspace{background:#07131d;border-radius:12px}.side-menu{padding:8px}.side-menu button{display:flex;align-items:center;gap:18px;width:100%;background:transparent;color:#c6d3e3;border:1px solid transparent;text-align:left;padding:12px 13px;font-size:14px;border-radius:8px}.side-menu button svg{width:21px;height:21px;flex:none}.side-menu button.active{color:var(--yellow);border-color:#a3af36;background:linear-gradient(90deg,#efff001c,transparent)}.side-promo{margin-top:16px;border:1px solid #315269;border-left:3px solid var(--yellow);border-radius:12px;padding:20px;background:linear-gradient(100deg,#02080fdd,#02080faa),url('images/GO.webp') center/cover}.side-promo b{color:var(--yellow);line-height:1.45}.side-promo p{font-size:14px;line-height:1.4;margin-bottom:0}.workspace{min-width:0;padding:18px 20px}.workspace section{padding:0!important;scroll-margin-top:20px}.workspace section>.wrap{width:100%}.workspace #questoes>.wrap>.secthead{display:none}.workspace .questionzone{border:0;background:none;padding:0;border-radius:0}.workspace .filters{display:none}.workspace .questionbox{padding:20px 23px;border-radius:10px;background:#050f18;border:1px solid #19303f}.workspace .qmeta{font-size:13px;margin-bottom:14px}.workspace .q-source{color:#c3d0dd;font-size:14px;margin:10px 0}.workspace .questionbox h3{font-size:18px;font-weight:400;line-height:1.35;margin:16px 0}.answer{display:flex;align-items:center;gap:18px;min-height:48px;padding:8px 10px;font-size:14px;background:#07121c;border:1px solid #294052;border-radius:9px}.answer b{display:grid;place-items:center;width:30px;height:30px;flex:none;border:1px solid #a1b4c9;border-radius:50%;font-size:14px;font-weight:400}.answer.chosen{background:#efff0008;border-color:var(--yellow);box-shadow:0 0 8px #efff0015}.answer.chosen b{background:var(--yellow);color:#000;border-color:var(--yellow)}.answer.correct{border-color:#83d89b}.workspace .qfooter{border:0;margin-top:18px;padding-top:0;flex-wrap:wrap}.workspace #nextBtn{background:#008eff;color:white;margin-left:auto;padding:13px 17px}.workspace #previousQuestion{margin-left:auto}.workspace .session{font-size:12px}.workspace .session strong{font-size:14px}.workspace .feedback:empty{display:none}.workspace .study-confirm{padding:10px 16px}.question-toolbar{display:flex;gap:14px;align-items:center;font-size:13px;color:#b4c5d8;margin:0 0 20px}.question-toolbar button{background:transparent;border:0;color:#c1cfe1;font-size:13px}.question-toolbar time{margin-left:auto;color:var(--yellow);font-variant-numeric:tabular-nums}.info-card{padding:16px;margin-bottom:14px}.info-card h3{font-size:14px;margin:0 0 18px}.info-card dl{display:grid;grid-template-columns:85px 1fr;gap:20px 10px;font-size:12px;line-height:1.4}.info-card dt{color:#aebed0}.info-card dd{margin:0;color:#d2deec;overflow-wrap:anywhere}.info-card button{width:100%;text-align:left;border:1px solid #1a3345;background:transparent;color:#c8d7e9;border-radius:7px;padding:9px 10px;margin:3px 0;font-size:12px}.info-card button[aria-pressed=true]{border-color:var(--yellow);color:var(--yellow)}.workspace .secthead h2{font-size:27px;letter-spacing:-1px;line-height:1.15}.workspace .secthead{display:block}.workspace .secthead p{margin-top:12px}.workspace .study-search{grid-template-columns:1fr 1fr}.workspace .search-wide{grid-column:1/-1}.workspace .study-search>.btn{grid-column:1/-1}.workspace .study-modes{gap:8px}.workspace .study-mode{padding:14px}.workspace .study-mode strong{font-size:16px}.workspace .subjects{grid-template-columns:repeat(2,1fr)}.workspace .stats{grid-template-columns:1fr 1fr}.workspace .two,.workspace .mission,.workspace .exam-cards{grid-template-columns:1fr}.workspace .ai-session-banner{font-size:12px;margin-bottom:16px}.workspace .site-footer{margin-top:30px}.mobile-menu{display:none}main{padding-bottom:35px}.site-footer{font-size:13px;padding-top:30px}.site-footer .brand{font-size:20px}.workspace [hidden]{display:none!important}.saved-empty{padding:30px 0;color:#bccddd}.workspace #customPanel h2{font-size:27px;line-height:1.2}.workspace #customPanel p{line-height:1.6;color:#bdccdc}
@media(min-width:1600px){.hero .hero-grid{padding-left:35px}.hero{min-height:470px}}
@media(max-width:1200px){.app-shell{grid-template-columns:200px minmax(0,1fr) 220px;gap:12px}.nav-search{width:190px}.navlinks{gap:14px}.workspace{padding:15px}.feature-strip{gap:15px}.feature strong{font-size:14px}.hero .hero-grid{padding-left:0}.workspace .questionbox{padding:16px}}
@media(max-width:980px){.app-shell{grid-template-columns:180px minmax(0,1fr)}.right-tools{grid-column:2;display:grid;grid-template-columns:1fr 1fr;gap:12px}.navlinks{display:none}.feature-strip{padding:20px 0}.feature small{font-size:11px}.hero h1{font-size:46px}.hero .lead{max-width:460px}}
@media(max-width:640px){body{padding-bottom:66px}.wrap{width:94%}.nav{height:64px;gap:10px}.brand{font-size:28px}.brand small{font-size:8px;letter-spacing:5px}.nav-search{display:none}.nav-cta{font-size:12px;padding:11px}.hero{min-height:0;padding-top:28px}.hero .hero-photo{background-position:62% center}.hero:after{background:linear-gradient(90deg,#030a12ed,#030a1270),linear-gradient(0deg,#030a12,transparent)}.hero h1{font-size:38px;letter-spacing:-1.4px;max-width:380px}.hero .eyebrow{font-size:9px;letter-spacing:2px}.hero .lead{font-size:16px;max-width:350px}.hero .actions{gap:8px}.hero .actions .btn{padding:12px 17px;font-size:12px}.carousel-controls{margin-top:18px;justify-content:flex-start}.slide-buttons select{font-size:12px}.feature-strip{grid-template-columns:1fr 1fr;gap:18px 12px;margin-top:8px;padding:18px 0}.feature{gap:10px;border:0}.feature svg{width:26px}.feature strong{font-size:13px}.feature small{font-size:10px}.app-shell{display:block;padding-top:12px}.sidebar{margin-bottom:12px}.side-menu{display:flex;overflow-x:auto;gap:5px}.side-menu button{white-space:nowrap;width:auto;padding:10px;font-size:13px;gap:8px}.side-menu button svg{width:17px}.side-promo{display:none}.workspace{padding:13px 10px}.workspace .questionbox{padding:14px 11px}.question-toolbar{font-size:12px;gap:8px;margin-bottom:14px}.workspace .questionbox h3{font-size:17px;line-height:1.5}.answer{font-size:14px;gap:10px;min-height:54px}.workspace .qfooter{flex-direction:row;align-items:center;gap:8px}.workspace #previousQuestion{margin-left:0}.workspace #nextBtn{font-size:12px;padding:12px}.workspace .session{width:100%}.right-tools{display:grid;grid-template-columns:1fr;margin-top:12px}.right-tools .info-card:first-child dl{grid-template-columns:100px 1fr;gap:12px}.right-tools .info-card{margin:0}.workspace .study-modes{grid-template-columns:1fr}.workspace .study-search{grid-template-columns:1fr 1fr}.bottomnav{background:#06121def}.bottomnav a{font-size:11px}.side-menu button.active{border-color:var(--yellow)}}
.hero .hero-grid{min-height:285px}.hero{padding-bottom:0}.hero .hero-photo{z-index:0}.hero:after{z-index:1}.carousel-controls{flex-direction:row}.workspace .q-source{order:0}.workspace .original-detail{font-size:13px}
.workspace .qfooter .btn{font-size:12px}.workspace .qfooter .session{display:none}.workspace #previousQuestion{margin-left:auto}.hero .carousel-controls{font-size:12px}.hero .slide-buttons button{min-height:30px;padding:5px 10px;font-size:12px}.hero .slide-buttons select{padding:5px 8px;font-size:12px}.hero .hero-grid{min-height:290px}.workspace #customPanel select{display:block;width:100%;margin:10px 0 20px}@media(max-width:640px){.hero .hero-grid{min-height:0}.workspace .qfooter{gap:8px}.workspace #previousQuestion{margin-left:0}.workspace .qfooter>button:first-child{width:100%;text-align:left}}