*{margin:0;padding:0;box-sizing:border-box;transition:background .3s,border-color .3s,box-shadow .3s}
:root{
  --bg:#080b12;--bg2:#0f1522;--bg3:#18203a;
  --teal:#00d4af;--teal2:#00b892;
  --gold:#f7c948;--gold2:#dbaa20;
  --text:#e8edf5;--text2:#8892a8;--text3:#c8d0e0;
  --danger:#ff6b6b;--success:#00d4af;
  --radius:16px;--shadow:0 8px 32px rgba(0,0,0,0.5);
}
[data-theme="light"]{
  --bg:#eef0f5;--bg2:#ffffff;--bg3:#e2e5ed;
  --teal:#00a88a;--teal2:#009070;
  --gold:#d4a800;--gold2:#b89200;
  --text:#18182a;--text2:#4a4a6e;--text3:#282844;
  --danger:#dc3545;
  --shadow:0 8px 32px rgba(0,0,0,0.06);
}
[data-theme="light"] #mainNav{background:rgba(255,255,255,.92);border-bottom-color:rgba(0,0,0,.07)}
[data-theme="light"] .sticky-header.scrolled #mainNav{background:rgba(8,11,18,.85);border-bottom-color:rgba(0,168,138,.2);box-shadow:0 4px 30px rgba(0,0,0,.08)}
[data-theme="light"] .sticky-header.scrolled .nav-links a{color:#8892a8}[data-theme="light"] .sticky-header.scrolled .nav-links a:hover{color:#00d4af;background:rgba(255,255,255,.06)}
[data-theme="light"] .sticky-header.scrolled .nav-auth a:first-child{color:#8892a8}[data-theme="light"] .sticky-header.scrolled .nav-auth a:first-child:hover{color:#00d4af;background:rgba(255,255,255,.06)}
[data-theme="light"] .sticky-header.scrolled .nav-user-btn{color:#c8d0e0;background:rgba(0,168,138,.15);border-color:rgba(0,168,138,.25)}
[data-theme="light"] .sticky-header.scrolled .nav-user-btn:hover{color:#00d4af}
[data-theme="light"] .sticky-header.scrolled .theme-toggle{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.1)}
[data-theme="light"] .sticky-header.scrolled .logo span{-webkit-text-fill-color:#8892a8}
[data-theme="light"] .sticky-header.scrolled .nav-badge{color:#f7c948;background:rgba(247,201,72,.12);border-color:rgba(247,201,72,.25);-webkit-text-fill-color:#f7c948}
[data-theme="light"] .sticky-header.scrolled .btn-reg{color:#000!important}
[data-theme="light"] .sticky-header.scrolled .ticker-item{color:#8892a8}[data-theme="light"] .sticky-header.scrolled .ticker-item strong{color:#c8d0e0}
[data-theme="light"] .sticky-header.scrolled .ticker-wrap{background:rgba(8,11,18,.88);border-bottom-color:rgba(0,168,138,.15)}
[data-theme="light"] .sticky-header.scrolled .ticker-label{background:#0f1522;border-color:rgba(0,168,138,.2)}
[data-theme="light"] .sticky-header.scrolled .ticker-coming{color:#f7c948;background:rgba(247,201,72,.12);border-color:rgba(247,201,72,.25)}
[data-theme="light"] .nav-links a{color:var(--text2)}[data-theme="light"] .nav-links a:hover{color:var(--teal);background:rgba(0,168,138,.08)}
[data-theme="light"] .nav-auth a:first-child{color:var(--text2)}[data-theme="light"] .nav-auth a:first-child:hover{color:var(--teal);background:rgba(0,168,138,.08)}
[data-theme="light"] .nav-user-btn{color:var(--text3);background:rgba(0,168,138,.1);border-color:rgba(0,168,138,.2)}
[data-theme="light"] .nav-user-btn:hover{background:rgba(0,168,138,.2);color:var(--teal)}
[data-theme="light"] .nav-dropdown{background:var(--bg2);border-color:rgba(0,0,0,.08);box-shadow:0 12px 40px rgba(0,0,0,.1)}
[data-theme="light"] .nav-dropdown a{color:var(--text2)}[data-theme="light"] .nav-dropdown a:hover{background:rgba(0,168,138,.08);color:var(--teal)}
[data-theme="light"] .nav-dropdown .danger:hover{background:rgba(220,53,69,.08)}
[data-theme="light"] .nav-dropdown .divider{background:rgba(0,0,0,.06)}
[data-theme="light"] .btn-reg{color:#fff!important}
[data-theme="light"] .theme-toggle{background:rgba(0,0,0,.04);border-color:rgba(0,0,0,.08)}
[data-theme="light"] .theme-toggle:hover{background:rgba(0,168,138,.1);border-color:rgba(0,168,138,.25)}
[data-theme="light"] .ticker-label{background:var(--bg2);border-color:rgba(0,168,138,.15)}
[data-theme="light"] .ticker-wrap{background:rgba(0,168,138,.05);border-bottom-color:rgba(0,168,138,.12)}
[data-theme="light"] .ticker-item{color:var(--text2)}
[data-theme="light"] .ticker-item strong{color:var(--text3)}
[data-theme="light"] .auth-card{background:var(--bg2);border-color:rgba(0,168,138,.12);box-shadow:0 8px 40px rgba(0,168,138,.06)}
[data-theme="light"] .auth-card::before{opacity:.8}
[data-theme="light"] .auth-head h1{color:var(--text)}
[data-theme="light"] .input-wrap input{background:var(--bg3);border-color:rgba(0,168,138,.1);color:var(--text)}
[data-theme="light"] .input-wrap input:focus{border-color:var(--teal);box-shadow:0 0 0 4px rgba(0,168,138,.12)}
[data-theme="light"] .input-wrap label{color:var(--text2)}
[data-theme="light"] .auth-alt{border-top-color:rgba(0,168,138,.1)}
[data-theme="light"] footer{border-top-color:rgba(0,168,138,.12);background:linear-gradient(180deg,var(--bg2),#e8ecf4)}
[data-theme="light"] .footer-bottom{border-top-color:rgba(0,168,138,.08);color:var(--text2)}
[data-theme="light"] .footer-col h4{color:var(--teal)}
[data-theme="light"] .footer-col p,.footer-col a{color:var(--text2)}
[data-theme="light"] .footer-col a:hover{color:var(--teal2)!important}
[data-theme="light"] .exam-card{background:var(--bg2);border-color:rgba(0,168,138,.08)}
[data-theme="light"] .exam-card::before{opacity:.8;background:linear-gradient(90deg,var(--teal),var(--gold))}
[data-theme="light"] .exam-card:hover{border-color:var(--teal);box-shadow:0 8px 32px rgba(0,168,138,.1)}
[data-theme="light"] .topic-card{background:var(--bg2);border-color:rgba(0,0,0,.06)}
[data-theme="light"] .topic-card:hover{border-color:var(--teal);box-shadow:0 8px 32px rgba(0,168,138,.08)}
[data-theme="light"] .exam-header{background:linear-gradient(135deg,rgba(0,168,138,.08),rgba(212,168,0,.05));border-bottom-color:rgba(0,168,138,.08)}
[data-theme="light"] .profile-stat-card,.profile-card,.profile-sidebar{background:var(--bg2);border-color:rgba(0,168,138,.08)}
[data-theme="light"] .profile-card h2{color:var(--teal)}
[data-theme="light"] .results-table-wrap{background:var(--bg2);border-color:rgba(0,168,138,.08)}
[data-theme="light"] .results-table th{background:var(--bg3);border-bottom-color:rgba(0,168,138,.1);color:var(--teal)}
[data-theme="light"] .results-table td{border-bottom-color:rgba(0,0,0,.04)}
[data-theme="light"] .section-title h2{color:var(--text)}
[data-theme="light"] .hero-badge{background:rgba(0,168,138,.1);border-color:rgba(0,168,138,.25);color:var(--teal)}
[data-theme="light"] .stat-num{color:var(--teal)}
[data-theme="light"] .stat{background:var(--bg2);border-color:rgba(0,168,138,.1);box-shadow:0 4px 16px rgba(0,168,138,.04)}
[data-theme="light"] .exam-icon{background:rgba(0,168,138,.1)}
[data-theme="light"] .exam-org{color:var(--teal)}
[data-theme="light"] .mock-btn{box-shadow:0 4px 20px rgba(0,168,138,.25)}
[data-theme="light"] .mock-btn:hover{box-shadow:0 8px 30px rgba(0,168,138,.35)}
[data-theme="light"] .profile-edit-btn{color:var(--teal);background:rgba(0,168,138,.08);border-color:rgba(0,168,138,.15)}
[data-theme="light"] .profile-edit-btn:hover{background:rgba(0,168,138,.15)}
html{transition:background .3s,color .3s}
body{font-family:'Inter',sans-serif;background:var(--bg);color:var(--text);min-height:100vh;overflow-x:clip;transition:background .3s,color .3s}
a{color:inherit;text-decoration:none}
button{cursor:pointer;border:none;outline:none;font-family:'Inter',sans-serif}

.screen{display:block;min-height:100vh;animation:fadeIn .4s ease}
@keyframes fadeIn{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}

.sticky-header{position:sticky;top:0;z-index:100}
#mainNav{display:flex;align-items:center;gap:32px;padding:0 40px;height:76px;background:rgba(8,11,18,.85);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);border-bottom:1px solid rgba(255,255,255,.06);transition:all .35s ease;position:relative;z-index:2}
.sticky-header.scrolled #mainNav{height:54px;gap:24px;background:rgba(8,11,18,.75);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-bottom-color:rgba(0,212,175,.12);box-shadow:0 4px 30px rgba(0,0,0,.4),0 0 40px rgba(0,212,175,.04)}
.sticky-header.scrolled .logo{font-size:1.15rem}
.sticky-header.scrolled .logo span{font-size:.75rem}
.sticky-header.scrolled .nav-links a{font-size:.82rem;padding:6px 12px}
.sticky-header.scrolled .nav-auth a{font-size:.8rem;padding:5px 14px}
.sticky-header.scrolled .nav-user-btn{font-size:.8rem;padding:4px 12px}
.sticky-header.scrolled .ticker-wrap{background:rgba(0,0,0,.15);border-bottom-color:rgba(0,212,175,.12)}
.theme-toggle{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:10px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.06);cursor:pointer;transition:all .3s;font-size:1.05rem;line-height:1;flex-shrink:0;margin-left:4px}
.theme-toggle:hover{background:rgba(0,212,175,.1);border-color:rgba(0,212,175,.25);transform:rotate(15deg)}
.theme-toggle:active{transform:rotate(30deg)scale(.92)}
.hamburger{display:none;align-items:center;justify-content:center;width:36px;height:36px;border-radius:10px;background:none;border:1px solid rgba(255,255,255,.06);cursor:pointer;font-size:1.2rem;transition:.2s;color:var(--text2);margin-left:4px}
.hamburger:hover{background:rgba(0,212,175,.1);border-color:rgba(0,212,175,.25);color:var(--teal)}
.mobile-drawer{position:fixed;top:0;right:-300px;width:280px;height:100%;background:var(--bg2);border-left:1px solid rgba(255,255,255,.06);z-index:1000;transition:right .3s ease;padding:20px;display:flex;flex-direction:column}
.mobile-drawer.open{right:0}
.mobile-drawer-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}
.mobile-drawer-title{font-family:'Poppins',sans-serif;font-size:1.1rem;font-weight:700}
.mobile-drawer-close{background:none;border:none;font-size:1.2rem;color:var(--text2);cursor:pointer;padding:4px 8px;border-radius:6px}
.mobile-drawer-close:hover{background:rgba(255,255,255,.05);color:var(--text)}
.mobile-drawer-links{display:flex;flex-direction:column;gap:4px}
.mobile-drawer-links a{padding:12px 14px;border-radius:10px;color:var(--text2);font-size:.92rem;font-weight:500;transition:.2s}
.mobile-drawer-links a:hover{background:rgba(0,212,175,.08);color:var(--teal)}
.mobile-divider{height:1px;background:rgba(255,255,255,.06);margin:8px 0}
.mobile-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.5);z-index:999;opacity:0;visibility:hidden;transition:all .3s}
.mobile-overlay.open{opacity:1;visibility:visible}
@media(max-width:768px){.hamburger{display:flex}}
@media(max-width:768px){.nav-links{display:none}}
.ticker-wrap{background:rgba(0,212,175,.04);border-bottom:1px solid rgba(0,212,175,.08);overflow:hidden;height:32px;display:flex;align-items:center;position:relative;transition:background .35s,border-color .35s}
.ticker-label{position:absolute;top:0;bottom:0;display:flex;align-items:center;padding:0 14px;font-size:.85rem;z-index:2;background:var(--bg2);border-color:rgba(0,212,175,.1);transition:background .35s}
.ticker-label-left{left:0;border-right:1px solid}
.ticker-label-right{right:0;border-left:1px solid}
.ticker-label-right::before{content:'📢';font-size:.85rem;transform:scaleX(-1);display:inline-block}
.ticker-track{display:flex;white-space:nowrap;animation:tickerScroll 50s linear infinite;padding:0 4px;-webkit-mask-image:linear-gradient(90deg,transparent 48px,#000 72px,#000 calc(100% - 72px),transparent calc(100% - 48px));mask-image:linear-gradient(90deg,transparent 48px,#000 72px,#000 calc(100% - 72px),transparent calc(100% - 48px))}
.ticker-wrap:hover .ticker-track{animation-play-state:paused}
.ticker-item{display:inline-flex;align-items:center;gap:6px;padding:0 36px;font-size:.78rem;color:var(--text2);flex-shrink:0}
.ticker-item strong{color:var(--text3);font-weight:600}
.ticker-coming{background:rgba(247,201,72,.12);border:1px solid rgba(247,201,72,.2);color:var(--gold);font-size:.65rem;font-weight:700;padding:1px 8px;border-radius:4px}
@keyframes tickerScroll{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{color:var(--text2);font-size:.88rem;font-weight:500;padding:8px 14px;border-radius:6px;transition:all .2s}
.nav-links a:hover{color:var(--text);background:rgba(255,255,255,.04)}
.nav-auth{display:flex;align-items:center;gap:8px;margin-left:auto}
.nav-auth a{font-size:.85rem;font-weight:500;padding:7px 16px;border-radius:8px;transition:all .2s}
.nav-auth a:first-child{color:var(--text2)}.nav-auth a:first-child:hover{color:var(--text);background:rgba(255,255,255,.04)}
.nav-auth .btn-reg{background:var(--teal);color:#000;font-weight:600;box-shadow:0 2px 8px rgba(0,212,175,.2)}
.nav-auth .btn-reg:hover{background:var(--teal2);box-shadow:0 4px 16px rgba(0,212,175,.3);transform:translateY(-1px)}
.nav-user-wrap{position:relative}
.nav-user-btn{display:flex;align-items:center;gap:6px;background:rgba(0,212,175,.08);border:1px solid rgba(0,212,175,.15);border-radius:8px;padding:6px 14px;cursor:pointer;transition:all .2s;color:var(--text3);font-size:.85rem;font-weight:600;font-family:'Inter',sans-serif}
.nav-user-btn:hover{background:rgba(0,212,175,.15);border-color:rgba(0,212,175,.3);color:var(--teal)}
.nav-user-btn .arrow{margin-left:2px;font-size:.6rem;transition:transform .2s}
.nav-user-btn .arrow.open{transform:rotate(180deg)}
.nav-dropdown{position:absolute;top:calc(100% + 8px);right:0;background:var(--bg2);border:1px solid rgba(255,255,255,.08);border-radius:12px;padding:6px;min-width:200px;box-shadow:0 12px 40px rgba(0,0,0,.5);opacity:0;visibility:hidden;transform:translateY(-6px);transition:all .2s;z-index:999}
.nav-dropdown.open{opacity:1;visibility:visible;transform:translateY(0)}
.nav-dropdown a{display:flex;align-items:center;gap:10px;padding:9px 14px;border-radius:8px;color:var(--text2);font-size:.85rem;font-weight:500;transition:all .15s}
.nav-dropdown a:hover{background:rgba(255,255,255,.05);color:var(--text)}
.nav-dropdown .divider{height:1px;background:rgba(255,255,255,.06);margin:4px 8px}
.nav-dropdown .danger{color:var(--danger)}.nav-dropdown .danger:hover{background:rgba(255,107,107,.1);color:var(--danger)}
.logo{font-family:'Poppins',sans-serif;font-size:1.3rem;font-weight:800;background:linear-gradient(135deg,var(--teal),var(--gold));-webkit-background-clip:text;-webkit-text-fill-color:transparent;flex-shrink:0}
.logo span{font-weight:400;font-size:.85rem;-webkit-text-fill-color:var(--text2)}
.nav-badge{background:rgba(247,201,72,.12);border:1px solid rgba(247,201,72,.25);color:var(--gold);font-size:.58rem;font-weight:700;padding:2px 8px;border-radius:12px;-webkit-text-fill-color:var(--gold);letter-spacing:.3px;margin-left:6px;vertical-align:middle}

.hero{text-align:center;padding:80px 20px 60px;max-width:800px;margin:0 auto;position:relative}
.hero::before{content:'';position:absolute;top:-40%;left:-20%;right:-20%;height:120%;background:radial-gradient(ellipse at 50% 0%,rgba(0,212,175,.04) 0%,transparent 60%),radial-gradient(ellipse at 80% 100%,rgba(247,201,72,.03) 0%,transparent 50%);pointer-events:none;z-index:-1}
.hero-badge{display:inline-block;background:rgba(0,212,175,.12);border:1px solid rgba(0,212,175,.3);color:var(--teal);padding:6px 16px;border-radius:20px;font-size:.8rem;font-weight:600;margin-bottom:24px;letter-spacing:.5px}
.hero h1{font-family:'Poppins',sans-serif;font-size:clamp(2rem,5vw,3.5rem);font-weight:800;line-height:1.15;margin-bottom:20px}
.hero h1 .highlight{background:linear-gradient(135deg,var(--teal),var(--gold));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.hero p{font-size:1.1rem;color:var(--text2);max-width:560px;margin:0 auto 40px;line-height:1.7}
.stats-row{display:flex;gap:40px;justify-content:center;margin-bottom:60px;flex-wrap:wrap}
.stat{text-align:center;padding:20px 32px;background:rgba(0,212,175,.04);border:1px solid rgba(0,212,175,.08);border-radius:16px}
.stat-num{font-family:'Poppins',sans-serif;font-size:1.8rem;font-weight:800;color:var(--teal)}
.stat-label{font-size:.8rem;color:var(--text2);margin-top:2px}

.section-title{text-align:center;margin-bottom:40px}
.section-title h2{font-family:'Poppins',sans-serif;font-size:1.6rem;font-weight:700;margin-bottom:8px}
.section-title p{color:var(--text2);font-size:.95rem}

.exam-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px;max-width:1100px;margin:0 auto;padding:0 20px 80px}
.exam-card{background:var(--bg2);border:1px solid rgba(255,255,255,.08);border-radius:var(--radius);padding:28px;cursor:pointer;transition:all .3s;position:relative;overflow:hidden}
.exam-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--teal),var(--gold));opacity:.6;transition:.3s}
.exam-card:hover{transform:translateY(-4px);border-color:var(--teal);box-shadow:var(--shadow)}
.exam-card:hover::before{opacity:1;height:4px}
.exam-card.coming-soon{opacity:.5;cursor:not-allowed}
.exam-card.coming-soon::before{background:linear-gradient(90deg,var(--text2),var(--text3));opacity:.3}
.exam-card.coming-soon:hover{transform:none;border-color:rgba(255,255,255,.08);box-shadow:none}
.exam-card.coming-soon:hover::before{opacity:.3;height:3px}
.exam-card-header{display:flex;align-items:center;gap:14px;margin-bottom:16px}
.exam-icon{width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.4rem;background:rgba(0,212,175,.12);flex-shrink:0}
.exam-org{font-size:.75rem;color:var(--teal);font-weight:600;letter-spacing:.5px;text-transform:uppercase}
.exam-name{font-size:1.05rem;font-weight:700;margin-top:2px}
.exam-card p{color:var(--text2);font-size:.88rem;line-height:1.6;margin-bottom:18px}
.exam-meta{display:flex;gap:12px;flex-wrap:wrap}.tag{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);color:var(--text3);font-size:.75rem;padding:4px 10px;border-radius:6px}.tag.live{background:rgba(0,212,175,.12);border-color:rgba(0,212,175,.3);color:var(--teal)}.tag.date{background:rgba(247,201,72,.1);border-color:rgba(247,201,72,.25);color:var(--gold)}.coming-pill{position:absolute;top:16px;right:16px;background:rgba(255,255,255,.06);color:var(--text2);font-size:.7rem;font-weight:600;padding:4px 10px;border-radius:20px}

.back-btn{display:inline-flex;align-items:center;gap:8px;color:var(--text2);font-size:.9rem;padding:20px 40px;cursor:pointer;transition:.2s;background:none}
.back-btn:hover{color:var(--teal)}
.exam-header{background:linear-gradient(135deg,rgba(0,212,175,.12),rgba(247,201,72,.08));border-bottom:1px solid rgba(255,255,255,.06);padding:40px;text-align:center}
.exam-header h2{font-family:'Poppins',sans-serif;font-size:1.8rem;font-weight:700}
.exam-header p{color:var(--text2);margin-top:8px}
.exam-header .tags{margin-top:16px;display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.mock-btn{display:block;max-width:600px;margin:30px auto;background:linear-gradient(135deg,var(--teal),var(--teal2));color:#000;font-weight:700;font-size:1rem;padding:18px 32px;border-radius:14px;text-align:center;cursor:pointer;transition:.3s;box-shadow:0 4px 20px rgba(0,212,175,.3)}
.mock-btn:hover{transform:translateY(-2px);box-shadow:0 8px 30px rgba(0,212,175,.4)}
.topic-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;max-width:1100px;margin:0 auto;padding:0 20px}
.topic-card{background:var(--bg2);border:1px solid rgba(255,255,255,.07);border-radius:14px;padding:22px;cursor:pointer;transition:.3s;display:flex;flex-direction:column;gap:10px}
.topic-card:hover{border-color:var(--teal);transform:translateY(-3px);box-shadow:var(--shadow)}
.topic-card-top{display:flex;align-items:center;gap:12px}.topic-emoji{font-size:1.8rem}.topic-name{font-weight:600;font-size:.95rem}.topic-count{color:var(--text2);font-size:.8rem}.topic-bar{height:4px;background:rgba(255,255,255,.08);border-radius:2px;overflow:hidden}.topic-bar-fill{height:100%;background:linear-gradient(90deg,var(--teal),var(--gold));width:0;transition:width .8s ease}

#screen-quiz{max-width:780px;margin:0 auto;padding:20px}
.quiz-topbar{display:flex;align-items:center;justify-content:space-between;padding:20px 0;margin-bottom:20px}
.quiz-topic-name{font-weight:600;font-size:.95rem;color:var(--text2)}
.timer{background:var(--bg3);border:1px solid rgba(255,255,255,.1);border-radius:10px;padding:8px 16px;font-size:.9rem;font-weight:600;font-family:'Poppins',sans-serif;color:var(--gold);display:flex;align-items:center;gap:6px}
.timer.warning{color:var(--danger);border-color:rgba(255,107,107,.3);animation:pulse 1s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.6}}
.progress-wrap{margin-bottom:28px}
.progress-info{display:flex;justify-content:space-between;margin-bottom:8px;font-size:.82rem;color:var(--text2)}
.progress-bar{height:6px;background:rgba(255,255,255,.08);border-radius:3px;overflow:hidden}
.progress-fill{height:100%;background:linear-gradient(90deg,var(--teal),var(--gold));transition:width .5s ease;border-radius:3px}
.question-card{background:var(--bg2);border:1px solid rgba(255,255,255,.08);border-radius:20px;padding:36px;margin-bottom:20px}
.q-number{font-size:.78rem;color:var(--teal);font-weight:600;letter-spacing:.5px;margin-bottom:14px;text-transform:uppercase}
.q-text{font-size:1.1rem;font-weight:500;line-height:1.65;color:var(--text)}
.options{display:flex;flex-direction:column;gap:12px}
.option{background:var(--bg3);border:2px solid rgba(255,255,255,.07);border-radius:12px;padding:16px 20px;cursor:pointer;transition:.25s;display:flex;align-items:center;gap:14px;font-size:.95rem}
.option:hover:not(.disabled){border-color:var(--teal);background:rgba(0,212,175,.08);transform:translateX(4px)}
.option-letter{width:32px;height:32px;border-radius:8px;background:rgba(255,255,255,.06);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.85rem;flex-shrink:0;transition:.25s}
.option.correct{border-color:var(--success);background:rgba(0,212,175,.12)}
.option.correct .option-letter{background:var(--success);color:#000}
.option.wrong{border-color:var(--danger);background:rgba(255,107,107,.08)}
.option.wrong .option-letter{background:var(--danger);color:#fff}
.option.disabled{cursor:default;pointer-events:none}
.explanation{background:rgba(0,212,175,.07);border:1px solid rgba(0,212,175,.2);border-radius:12px;padding:16px 20px;margin-top:16px;font-size:.88rem;color:var(--text3);line-height:1.6;display:none}
.explanation.show{display:block;animation:fadeIn .3s ease}
.explanation strong{color:var(--teal)}
.next-btn{width:100%;background:linear-gradient(135deg,var(--teal),var(--teal2));color:#000;font-weight:700;font-size:1rem;padding:16px;border-radius:12px;margin-top:16px;transition:.3s;display:none}
.next-btn.show{display:block;flex:2}
.next-btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(0,212,175,.35)}
.auth-bg-blob{position:fixed;border-radius:50%;filter:blur(100px);pointer-events:none;z-index:0;opacity:.1;animation:blobFloat 20s ease-in-out infinite}
.auth-bg-blob.b1{width:500px;height:500px;background:var(--teal);top:-150px;left:-150px;animation-delay:0s}
.auth-bg-blob.b2{width:400px;height:400px;background:var(--gold);bottom:-100px;right:-100px;animation-delay:-5s}
.auth-bg-blob.b3{width:300px;height:300px;background:var(--teal2);top:50%;right:5%;animation-delay:-10s}
@keyframes blobFloat{0%,100%{transform:translate(0,0)scale(1)}25%{transform:translate(40px,-50px)scale(1.05)}50%{transform:translate(-30px,30px)scale(.95)}75%{transform:translate(50px,40px)scale(1.02)}}

#screen-results{max-width:680px;margin:0 auto;padding:40px 20px}
.result-card{background:var(--bg2);border:1px solid rgba(255,255,255,.08);border-radius:24px;padding:40px;text-align:center}
.score-circle{width:150px;height:150px;border-radius:50%;margin:0 auto 28px;display:flex;flex-direction:column;align-items:center;justify-content:center;background:conic-gradient(var(--teal) 0deg, rgba(255,255,255,.05) 0deg);position:relative;box-shadow:0 0 40px rgba(0,212,175,.2)}
.score-circle::before{content:'';position:absolute;inset:10px;background:var(--bg2);border-radius:50%}
.score-num{font-family:'Poppins',sans-serif;font-size:2.2rem;font-weight:800;position:relative;z-index:1}
.score-total{font-size:.8rem;color:var(--text2);position:relative;z-index:1}
.grade-badge{display:inline-block;padding:8px 24px;border-radius:20px;font-weight:700;font-size:.95rem;margin-bottom:20px}
.grade-excellent{background:rgba(0,212,175,.15);color:var(--teal);border:1px solid rgba(0,212,175,.3)}
.grade-good{background:rgba(247,201,72,.1);color:var(--gold);border:1px solid rgba(247,201,72,.25)}
.grade-practice{background:rgba(255,107,107,.1);color:var(--danger);border:1px solid rgba(255,107,107,.25)}
.result-message{font-size:1rem;color:var(--text2);margin-bottom:28px;line-height:1.6}
.result-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:28px}
.result-stat{background:var(--bg3);border-radius:12px;padding:16px;text-align:center}
.result-stat-num{font-family:'Poppins',sans-serif;font-size:1.4rem;font-weight:700}
.result-stat-label{font-size:.75rem;color:var(--text2);margin-top:4px}
.result-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn-primary{flex:1;background:linear-gradient(135deg,var(--teal),var(--teal2));color:#000;font-weight:700;padding:14px;border-radius:12px;font-size:.95rem;transition:.3s;min-width:140px}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(0,212,175,.35)}
.btn-secondary{flex:1;background:var(--bg3);border:1px solid rgba(255,255,255,.1);color:var(--text);font-weight:600;padding:14px;border-radius:12px;font-size:.95rem;transition:.3s;min-width:140px}
.btn-secondary:hover{border-color:var(--teal);color:var(--teal)}

footer{border-top:1px solid rgba(255,255,255,.05);padding:60px 40px 0;margin-top:60px}
.footer-inner{max-width:1100px;margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr 1.5fr;gap:40px}
.footer-col p{color:var(--text2);font-size:.85rem;line-height:1.7;margin-bottom:8px}
.footer-logo{font-family:'Poppins',sans-serif;font-size:1.3rem;font-weight:800;background:linear-gradient(135deg,var(--teal),var(--gold));-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:14px}
.footer-logo span{font-weight:300;font-size:.9rem;-webkit-text-fill-color:var(--text2)}
.footer-col h4{font-size:.85rem;font-weight:700;color:var(--text);margin-bottom:16px;text-transform:uppercase;letter-spacing:.5px}
.footer-col a{display:block;color:var(--text2);font-size:.88rem;margin-bottom:10px;transition:.2s}
.footer-col a:hover{color:var(--teal)}
.footer-col p a{display:inline;color:var(--teal)}
.footer-bottom{text-align:center;padding:30px 0;color:var(--text2);font-size:.82rem;border-top:1px solid rgba(255,255,255,.04);margin-top:40px}
.auth-page{display:flex;align-items:center;justify-content:center;min-height:100dvh;padding:40px 20px;animation:fadeIn .4s ease;position:relative}
.auth-container{max-width:380px;width:100%;margin:auto;position:relative;z-index:1}
.auth-card{background:var(--bg2);border:1px solid rgba(255,255,255,.08);border-radius:16px;padding:24px 24px 20px;position:relative;overflow:hidden;box-shadow:0 8px 32px rgba(0,0,0,0.25)}
.auth-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--teal),var(--gold));opacity:.9}
.auth-brand{font-family:'Poppins',sans-serif;font-size:.75rem;font-weight:800;letter-spacing:1px;text-transform:uppercase;margin-bottom:12px;color:var(--text2);text-align:center}
.auth-brand span{color:var(--teal)}
.auth-head{margin-bottom:14px;text-align:center}
.auth-head h1{font-family:'Poppins',sans-serif;font-size:1.15rem;font-weight:700;color:var(--text)}
.auth-head .auth-subtitle{color:var(--text2);font-size:.76rem;margin-top:2px}
.auth-form{display:flex;flex-direction:column;gap:12px}
.form-row{position:relative;width:100%}
.input-wrap{position:relative;display:flex;flex-direction:column;gap:3px}
.input-wrap label{font-size:.72rem;font-weight:600;color:var(--text3);letter-spacing:.2px;padding-left:2px}
.input-wrap input{width:100%;background:var(--bg3);border:2px solid rgba(255,255,255,.06);border-radius:10px;padding:11px 14px;font-family:'Inter',sans-serif;font-size:.85rem;color:var(--text);transition:all .25s;outline:none}
.input-wrap input:hover{border-color:rgba(0,212,175,.3)}
.input-wrap input:focus{border-color:var(--teal);background:rgba(0,212,175,.03);box-shadow:0 0 0 4px rgba(0,212,175,.08)}
.input-wrap input::placeholder{color:var(--text2);opacity:.25}
.toggle-pass{position:absolute;right:8px;bottom:8px;background:none;border:none;font-size:.85rem;cursor:pointer;padding:2px;opacity:.35;transition:.2s;line-height:1;z-index:1}
.toggle-pass:hover{opacity:.75}
.auth-btn{width:100%;padding:11px;border-radius:10px;font-size:.85rem;font-weight:700;margin-top:2px;background:linear-gradient(135deg,var(--teal),var(--teal2));color:#000;border:none;cursor:pointer;transition:all .3s;letter-spacing:.3px;position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center;gap:6px}
.auth-btn:hover{transform:translateY(-1px);box-shadow:0 8px 28px rgba(0,212,175,.35)}
.auth-btn:active{transform:translateY(0)}
.auth-btn::after{content:'→';font-size:1rem;transition:transform .3s}
.auth-btn:hover::after{transform:translateX(4px)}
.auth-error{background:rgba(255,107,107,.1);border:1px solid rgba(255,107,107,.25);color:var(--danger);padding:10px 14px;border-radius:8px;margin-bottom:16px;font-size:.78rem;font-weight:500;display:flex;align-items:center;gap:8px}
.auth-error::before{content:'⚠️';font-size:.9rem}
.field-error{color:var(--danger);font-size:.74rem;margin-top:2px;padding-left:2px}
.auth-alt{text-align:center;margin-top:12px;padding-top:12px;border-top:1px solid rgba(255,255,255,.05);font-size:.78rem;color:var(--text2)}
.auth-alt a{color:var(--teal);font-weight:600;transition:.2s}
.auth-alt a:hover{color:var(--gold)}

@media(max-width:768px){
  .footer-inner{grid-template-columns:1fr 1fr;gap:30px}
}
@media(max-width:480px){
  footer{padding:40px 20px 0}
  .footer-inner{grid-template-columns:1fr;gap:24px}
  .footer-bottom{padding:20px 0;margin-top:24px}
}

.breadcrumb{max-width:1100px;margin:0 auto;padding:16px 40px 0;font-size:.82rem}
.breadcrumb ol{list-style:none;display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.breadcrumb li{color:var(--text2)}
.breadcrumb li+li::before{content:'/';margin-right:8px;color:var(--text2);opacity:.4}
.breadcrumb a{color:var(--text2);transition:.2s}
.breadcrumb a:hover{color:var(--teal)}
.breadcrumb [aria-current]{color:var(--text3);font-weight:500}
.toast-container{position:fixed;top:80px;right:20px;z-index:9999;display:flex;flex-direction:column;gap:8px;pointer-events:none}
.toast{padding:12px 20px;border-radius:10px;font-size:.85rem;font-weight:500;color:#fff;transform:translateX(120%);opacity:0;transition:all .35s ease;pointer-events:auto;max-width:360px;box-shadow:0 8px 24px rgba(0,0,0,0.3);display:flex;align-items:center;gap:8px}
.toast.show{transform:translateX(0);opacity:1}
.toast-success{background:#00a884}
.toast-error{background:#dc3545}
.toast-info{background:rgba(0,212,175,.2);border:1px solid rgba(0,212,175,.3);color:var(--text)}
@media(max-width:768px){
  .footer-inner{grid-template-columns:1fr 1fr;gap:30px}
}
@media(max-width:600px){
  footer{padding:40px 20px 0}
  .footer-inner{grid-template-columns:1fr;gap:24px}
  .footer-bottom{padding:20px 0;margin-top:24px}
  #mainNav{padding:0 20px;flex-wrap:wrap;gap:8px}
  .nav-links{order:3;width:100%;justify-content:center}
  .hero{padding:50px 20px 40px}
  .back-btn,.exam-header{padding-left:20px;padding-right:20px}
  .question-card{padding:24px 20px}
  .result-stats{grid-template-columns:repeat(3,1fr);gap:10px}
  .breadcrumb{padding:12px 20px 0}
}
@media(max-width:480px){
  .footer-inner{grid-template-columns:1fr;gap:24px}
}