@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Playfair+Display:wght@700&display=swap');
.menu-toggle{display:none}
@media(max-width:640px){header .menu-toggle{align-items:center;background:transparent;border:0;box-shadow:none;display:flex;flex-direction:column;gap:5px;justify-content:center;margin-left:auto;min-height:42px;padding:8px;width:42px}header .menu-toggle:hover{box-shadow:none;transform:none}header .menu-toggle i{background:#f9eef0;border-radius:4px;display:block;height:2px;width:22px}header nav{background:#211e25;border:1px solid #3a343d;border-radius:13px;box-shadow:0 16px 28px #00000033;display:none!important;left:16px;max-width:none;padding:8px;position:absolute;right:16px;top:59px}header nav.is-open{display:flex!important;flex-direction:column}header nav a{border-radius:8px;color:#fff;font-size:14px;padding:12px 13px}header nav a:hover{background:#342b33;color:#fff}}
.container{margin:0 auto;max-width:1160px;padding:52px 24px 80px}@media(max-width:760px){.container{padding:34px 18px 64px}}
:root{--ink:#431222;--red:#c62c48;--deep:#8e1831;--rose:#fff5f5;--pink:#ffe2e5;--line:#f2d6da;--muted:#79616a;--white:#fff;--shadow:0 18px 50px rgba(104,24,43,.11)}*{box-sizing:border-box}html,body{min-height:100%;margin:0}body{background:radial-gradient(circle at 88% 8%,#ffe2e4 0,transparent 25%),var(--rose);color:var(--ink);font:16px 'DM Sans',Arial,sans-serif}header{align-items:center;background:rgba(255,255,255,.92);border-bottom:1px solid var(--line);display:flex;height:76px;justify-content:space-between;padding:0 max(5vw,26px);position:sticky;top:0;z-index:5}.brand{color:var(--ink);font-size:26px;font-weight:700;letter-spacing:-1px;text-decoration:none}.brand span{color:var(--red)}nav{display:flex;gap:22px}nav a{color:var(--ink);font-size:14px;font-weight:700;text-decoration:none}nav a:hover{color:var(--red)}main{margin:0 auto;max-width:1160px;padding:68px 24px 90px}footer{border-top:1px solid 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11px}.usage-bars{display:flex;gap:10px;min-height:200px}.alert{border-radius:10px;margin:12px 0;padding:13px}.alert-success{background:#e6f7eb;color:#176b36}.alert-error{background:#fff0f1;color:#9f1632}
@media(max-width:760px){header{height:64px;padding:0 18px}.brand{font-size:23px}nav{gap:13px}nav a{font-size:12px}main{padding:38px 18px 64px}h1{font-size:45px;letter-spacing:-1.5px}.landing{padding-top:16px}.landing>p:not(.eyebrow){font-size:16px}.landing .button{margin:5px 0;width:100%}.landing-cards,.how>div,.pricing,.two-col,.stats,.grid-2,.grid-3{grid-template-columns:1fr}.landing-cards article{min-height:auto}.how{margin-top:46px}.auth{border-radius:16px;margin:0;padding:23px}.page-title{font-size:29px}.row{flex-wrap:wrap}.row>*{flex:1 1 150px}.wallet-card{padding:25px}.pricing article{padding:21px}.table-wrap{font-size:13px}}
.auth-wrap{align-items:center;display:flex;justify-content:center;min-height:calc(100vh - 140px);padding:54px 20px}.auth-card{background:rgba(255,255,255,.96);border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);max-width:470px;padding:38px;width:100%}.auth-logo{align-items:center;background:linear-gradient(135deg,#ffe4e6,#ffd1d6);border-radius:14px;display:flex;font-size:26px;height:52px;justify-content:center;margin-bottom:22px;width:52px}.auth-title{font-size:45px;letter-spacing:-1.6px;margin-bottom:8px}.auth-sub{font-size:16px;margin-bottom:26px}.form-group{margin-bottom:15px}.form-group label{color:var(--ink);display:block;font-size:13px;font-weight:700;margin-bottom:7px}.auth-card form{display:block}.auth-card .input{height:50px;margin:0}.auth-card .btn{border:0;margin-top:8px;min-height:50px}.auth-card .text-center{text-align:center}.auth-card a{color:var(--red);font-weight:700}@media(max-width:520px){.auth-wrap{align-items:flex-start;min-height:calc(100vh - 120px);padding:28px 16px}.auth-card{border-radius:17px;padding:25px 20px}.auth-title{font-size:38px}}
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.usage-panel{background:linear-gradient(135deg,#fff,#ffe8ea);border:1px solid var(--line);border-radius:19px;margin-top:25px;padding:26px}.usage-summary{align-items:baseline;display:flex;gap:10px}.usage-summary strong{color:var(--red);font-size:42px}.usage-summary span{color:var(--muted)}.usage-chart-bars{align-items:flex-end;border-bottom:1px solid var(--line);display:flex;gap:13px;height:210px;margin-top:20px;padding:0 9px}.chart-day{align-items:center;display:flex;flex:1;flex-direction:column;height:100%;justify-content:flex-end;min-width:28px}.chart-day b{color:var(--deep);font-size:12px;height:19px}.chart-day i{background:linear-gradient(#eb6a75,#a71938);border-radius:7px 7px 2px 2px;display:block;max-width:58px;width:100%}.chart-day small{color:var(--muted);font-size:11px;margin-top:7px}
.leaderboard-list{display:grid;gap:10px;margin-top:27px;max-width:760px}.leader-row{align-items:center;background:#fff;border:1px solid var(--line);border-radius:14px;display:flex;gap:13px;padding:13px 16px}.leader-row.me{background:#ffe6e9;border-color:#ea9eaa}.leader-rank{min-width:31px;text-align:center}.leader-avatar{align-items:center;background:#f3d8dd;border-radius:50%;color:var(--deep);display:flex;font-weight:700;height:39px;justify-content:center;width:39px}.leader-name{display:flex;flex:1;flex-direction:column;gap:3px}.leader-name span{color:var(--muted);font-size:13px}.leader-score{color:var(--red);font-size:14px}
.profile-hero{align-items:center;background:linear-gradient(135deg,#fff,#ffe5e8);border:1px solid var(--line);border-radius:19px;display:flex;gap:20px;padding:28px}.profile-hero h1{margin-bottom:5px}.profile-hero p{margin:0}.profile-avatar{align-items:center;background:linear-gradient(135deg,#8e1831,#df596a);border-radius:50%;color:#fff;display:flex;font-size:34px;font-weight:700;height:78px;justify-content:center;width:78px}
.form-label{color:var(--ink);display:block;font-size:13px;font-weight:700;margin:15px 0 0}.form-label .input{margin-top:7px}
.referral-code{background:#fff0f1;border:1px dashed #d76b7a;border-radius:12px;color:var(--deep);font-size:28px;font-weight:700;letter-spacing:3px;margin:15px 0;padding:16px;text-align:center}.referral-points{color:var(--red);font-size:48px;font-weight:700;margin:15px 0}.referral-points span{color:var(--muted);font-size:16px;font-weight:500}
.access-page{align-items:center;display:flex;justify-content:center;min-height:100vh;padding:24px}.access-card{background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);max-width:560px;padding:42px;text-align:center}.access-card h1{font-size:42px}.access-card p{margin:0 auto 24px;max-width:410px}.access-icon{align-items:center;background:#ffe2e5;border-radius:18px;display:flex;font-size:34px;height:64px;justify-content:center;margin:0 auto 20px;width:64px}.access-card .button{margin:5px}
/* One responsive system for all student, teacher and admin screens. */
@media(max-width:640px){body{font-size:15px;overflow-x:hidden}header{height:auto;min-height:64px;padding:13px 16px;align-items:center}nav{gap:12px;max-width:62%;justify-content:flex-end;flex-wrap:wrap}nav a{font-size:12px}.container,main{padding-left:16px!important;padding-right:16px!important}.page-title{font-size:30px!important;line-height:1.12}.page-sub{font-size:15px}.grid,.grid-auto,.grid-2,.grid-3,.landing-cards,.how>div,.pricing,.two-col,.stats{grid-template-columns:1fr!important;gap:14px}.card,.stat,.landing-cards article,.how article,.pricing article,.auth,.auth-card{border-radius:14px;padding:20px}.stat .value{font-size:28px}.wallet-card{border-radius:15px;padding:22px}.wallet-card strong{font-size:48px}.row,.row-between{align-items:stretch;flex-direction:column;gap:10px}.row>*{width:100%!important}.row .btn,.row button,.row a{justify-content:center}.btn,.button,button{min-height:48px;width:100%}.btn-sm{min-height:43px}.input,input,select,textarea{font-size:16px!important;min-height:48px;width:100%!important}.form-group{margin-bottom:14px}.table-wrap{border-radius:12px;max-width:100%;overflow-x:auto}.table-wrap table{min-width:650px}.table-wrap th,.table-wrap td{padding:11px 10px;white-space:nowrap}.res-thumb{height:105px}.res-body{padding:16px}.res-title{font-size:16px}.usage-bars{gap:6px}.usage-bar-wrap small{font-size:10px}footer{font-size:12px;padding:22px 16px}.auth-wrap{padding:25px 16px}.auth-card{box-shadow:none}.alert{font-size:14px}.pill{display:inline-block;font-size:12px}.mt-3{margin-top:28px}}
@media(max-width:640px){body{background:#17141a;color:#f9eef0;padding-bottom:74px}header{background:#17141a;border-color:#30272e;position:relative}.brand{color:#fff}.brand span{color:#ef5468}header nav{display:none}.discover-home{padding:0 12px 26px!important}.topic-ticker{border-radius:0;margin:0 -12px;padding:10px 0}.discover-hero{background:linear-gradient(145deg,#3f1221,#821b35);border-radius:0;margin:0 -12px 30px;padding:42px 20px}.discover-hero:after{font-size:100px;height:210px;line-height:210px;right:-70px;top:-40px;width:210px}.discover-hero h1{font-size:45px;letter-spacing:-1.5px}.discover-hero p{font-size:15px;max-width:290px}.discover-actions{flex-direction:column;margin-top:22px}.discover-actions .button{width:100%}.discover-section{margin:30px 0}.discover-heading h2{color:#fff;font-size:20px}.discover-heading p{color:#a69ba3;font-size:13px}.subject-rail{display:flex;gap:12px;overflow-x:auto;padding-bottom:4px;scroll-snap-type:x mandatory}.subject-tile{flex:0 0 175px;height:220px;scroll-snap-align:start}.featured-learning{background:#222027;border-color:#302d35;padding:18px}.quick-grid{grid-template-columns:1fr}.quick-grid article{background:#2b272f}.quick-grid h3{color:#fff}.quick-grid p{color:#b7adb4}.package-strip{align-items:stretch;background:linear-gradient(145deg,#512031,#82223b);flex-direction:column;gap:18px;padding:23px}.package-strip h2{color:#fff;font-size:25px}.package-strip p{color:#f1cbd1}.mobile-bottom-nav{align-items:center;background:#211e25;border-top:1px solid #3a343d;bottom:0;display:flex;height:68px;justify-content:space-around;left:0;position:fixed;width:100%;z-index:10}.mobile-bottom-nav a{align-items:center;color:#aaa0aa;display:flex;flex:1;flex-direction:column;font-size:11px;gap:3px;height:100%;justify-content:center;position:relative;text-decoration:none}.mobile-bottom-nav a b{font-size:21px;font-weight:400;line-height:1}.mobile-bottom-nav .active{color:#fff}.mobile-bottom-nav .active:before{background:#c62c48;border-radius:6px;content:"";height:3px;position:absolute;top:0;width:31px}footer{background:#17141a;border-color:#30272e;color:#a69ba3}.discover-home+.mobile-bottom-nav+footer{padding-bottom:20px}}
@media(max-width:640px){.topic-preview-grid{display:flex;gap:12px;overflow-x:auto;padding:0 1px 6px}.topic-preview-grid article{flex:0 0 245px}.topics-page{background:#17141a;min-height:100vh}.topics-page h1,.topics-page h2{color:#fff}.topics-page .page-sub{color:#b7adb4}.topic-detail-grid{grid-template-columns:1fr}.topic-detail-card{background:#222027;border-color:#302d35}.topic-detail-card h2{color:#fff}.topic-detail-card p{color:#b7adb4}.topic-filters{flex-wrap:nowrap;margin:20px 0;overflow-x:auto;padding-bottom:5px}.topic-filters a{flex:0 0 auto;background:#2b272f;border-color:#3b343e;color:#eee}.topic-filters .selected{background:var(--red);border-color:var(--red)}.topic-card-top{background:#332831}.topic-card-footer{border-color:#3a343d}}
@media(max-width:640px){.row[style*="flex-wrap"]{align-items:center;flex-direction:row!important}.row[style*="flex-wrap"]>*{flex:0 0 auto!important;width:auto!important}.row[style*="flex-wrap"] .pill{display:inline-block;padding:8px 12px}.row[style*="flex-wrap"] a{min-height:auto;width:auto!important}}
@media(max-width:640px){.pricing article,.wallet-card,.card,.stat,.auth,.auth-card,.table-wrap{color:var(--ink)}.pricing article h1,.pricing article h2,.pricing article h3,.pricing article p,.card h1,.card h2,.card h3,.card p,.auth h1,.auth h2,.auth h3,.auth p{color:var(--ink)}.pricing .featured h1,.pricing .featured h2,.pricing .featured h3{color:var(--deep)}.pricing article p,.card p,.auth p{color:var(--muted)}.pricing article .price{color:var(--red)}.pricing article .button,.pricing article button{color:#fff}}
/* Keep the landing-page navigation fully visible above phone home indicators. */
@media(max-width:640px){.mobile-bottom-nav{height:calc(66px + env(safe-area-inset-bottom,0px));padding-bottom:env(safe-area-inset-bottom,0px)}.mobile-bottom-nav a{min-width:0;padding:6px 2px}.mobile-bottom-nav a b{font-size:19px}.mobile-bottom-nav a span{font-size:10px;line-height:1.1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.discover-home{padding-bottom:92px!important}.package-strip{margin-bottom:12px}.discover-home+.mobile-bottom-nav{box-shadow:0 -8px 22px rgba(0,0,0,.24)}}
@media(max-width:640px){nav.mobile-bottom-nav{bottom:0!important;display:flex!important;flex-wrap:nowrap!important;gap:0!important;justify-content:space-evenly!important;left:0!important;max-width:none!important;right:0!important;width:100%!important}.mobile-bottom-nav a{flex:1 1 25%!important;width:25%!important}}

/* Refined app surfaces and touch-first mobile layout. */
:root{--app-surface:#fffafb;--app-panel:#ffffff;--app-dark:#17141a;--app-muted:#8b7880}
.card,.stat,.res-card,.auth,.auth-card{transition:transform .2s ease,box-shadow .2s ease}.card:hover,.res-card:hover{box-shadow:0 16px 34px rgba(92,23,39,.1);transform:translateY(-2px)}
.page-title{letter-spacing:-1.1px}.page-sub{max-width:620px}.res-card{border-radius:18px}.res-thumb{height:128px}.res-body{padding:19px}.res-title{line-height:1.25}.pill{font-size:12px;font-weight:700}
@media(max-width:640px){body{background:#17141a;padding-bottom:88px}.container,main{padding-bottom:32px!important}.discover-home{padding-left:0!important;padding-right:0!important}.discover-section{padding-left:16px;padding-right:16px}.discover-hero{box-shadow:inset 0 -1px #ffffff12}.discover-hero h1{font-size:48px;line-height:.98}.discover-actions .button{border-radius:12px;min-height:52px}.topic-ticker{font-size:12px}.featured-learning{border-radius:18px}.subject-tile{border-radius:18px;box-shadow:0 10px 20px #00000025}.quick-grid article{border:1px solid #39343b}.package-strip{border-radius:18px;margin-left:16px;margin-right:16px}.package-strip .button{border-radius:12px}.mobile-bottom-nav{background:rgba(28,25,31,.97)!important;backdrop-filter:blur(16px);border-top:1px solid #49414a!important;box-shadow:0 -10px 28px rgba(0,0,0,.3)!important}.mobile-bottom-nav a{border-radius:0;color:#aea4ae!important;gap:5px;position:relative}.mobile-bottom-nav a b{align-items:center;border-radius:10px;display:flex;font-size:18px;height:27px;justify-content:center;width:34px}.mobile-bottom-nav .active{color:#fff!important}.mobile-bottom-nav .active b{background:#c62c4833;color:#ff7285}.mobile-bottom-nav .active:before{display:none}.mobile-bottom-nav .active:after{background:#e84a63;border-radius:99px;bottom:4px;content:"";height:3px;position:absolute;width:20px}.mobile-bottom-nav a span{font-weight:700;letter-spacing:.05px}.card,.stat,.res-card,.auth,.auth-card{border-color:#ead7da;box-shadow:0 10px 24px rgba(0,0,0,.07)}.page-title{font-size:32px!important;letter-spacing:-1px}.page-sub{line-height:1.5}.btn,.button,button{border-radius:12px;font-weight:700}.input,input,select,textarea{border-radius:12px}.res-thumb{height:112px}.res-card{border-radius:16px}.res-body{padding:16px}.table-wrap{box-shadow:0 8px 20px rgba(0,0,0,.08)}}