/* BFOUNT Sales & Marketing Academy */
:root{--navy:#0A1628;--navy2:#10264d;--blue:#0057FF;--blue2:#3B82F6;--cyan:#22D3EE;--violet:#7C3AED;--green:#16A34A;--amber:#F59E0B;--red:#DC2626;
--bg:#F5F7FC;--card:#FFFFFF;--line:#E3E8F2;--txt:#0F1B33;--ink:#0F1B33;--mid:#475569;--muted:#5D6A80;--r:16px;--sh:0 6px 24px rgba(15,27,51,.06);--sh2:0 14px 40px rgba(15,27,51,.12);
--fd:'Plus Jakarta Sans',system-ui,sans-serif;--fb:'DM Sans',system-ui,sans-serif;--fm:'JetBrains Mono',ui-monospace,monospace}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--txt);font-family:var(--fb);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--blue)}img{max-width:100%}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
/* header */
.ah{position:sticky;top:0;z-index:50;background:rgba(10,22,40,.96);backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.08)}
.ah .wrap{display:flex;align-items:center;gap:28px;height:68px}
.ah-logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:#fff;font-family:var(--fd);font-weight:800;font-size:17px;letter-spacing:-.2px}
.ah-logo img{height:30px;border-radius:6px;background:#fff;padding:2px 6px}
.ah-logo span{color:var(--cyan)}
.ah-nav{display:flex;gap:4px;flex:1}
.ah-nav a{color:rgba(255,255,255,.78);text-decoration:none;font-weight:600;font-size:14.5px;padding:8px 12px;border-radius:9px}
.ah-nav a:hover,.ah-nav a.on{color:#fff;background:rgba(255,255,255,.08)}
.ah-r{display:flex;align-items:center;gap:10px}
.ah-r .lnk{color:rgba(255,255,255,.8);text-decoration:none;font-size:14px;font-weight:600}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 20px;border-radius:11px;font-weight:700;font-size:14.5px;text-decoration:none;border:0;cursor:pointer;font-family:inherit;transition:.18s;line-height:1.2}
.btn-p{background:linear-gradient(135deg,var(--blue),#0040CC);color:#fff;box-shadow:0 6px 18px rgba(0,87,255,.25)}.btn-p:hover{transform:translateY(-1px);box-shadow:0 10px 26px rgba(0,87,255,.32)}
.btn-o{background:#fff;color:var(--txt);border:1px solid var(--line)}.btn-o:hover{border-color:var(--blue);color:var(--blue)}
.btn-w{background:#fff;color:var(--navy)}.btn-g{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.3)}.btn-g:hover{background:rgba(255,255,255,.08)}
.btn-s{background:var(--green);color:#fff}.btn-sm{padding:8px 14px;font-size:13.5px;border-radius:9px}.btn-lg{padding:15px 26px;font-size:16px;border-radius:13px}
.burger{display:none;background:none;border:0;color:#fff;font-size:24px;cursor:pointer}
/* hero */
.hero{background:radial-gradient(1200px 500px at 80% -10%,rgba(59,130,246,.35),transparent 60%),radial-gradient(800px 400px at 0% 110%,rgba(124,58,237,.3),transparent 60%),var(--navy);color:#fff;padding:72px 0 64px;overflow:hidden}
.hero .eb{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);font-family:var(--fm);font-size:11.5px;letter-spacing:1.5px;text-transform:uppercase;color:var(--cyan)}
.hero h1{font-family:var(--fd);font-size:clamp(34px,5vw,60px);line-height:1.06;letter-spacing:-1.5px;margin:18px 0 16px;max-width:880px}
.hero h1 em{font-style:normal;background:linear-gradient(90deg,var(--cyan),#A78BFA);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.sub{font-size:18px;color:rgba(255,255,255,.78);max-width:720px;margin:0 0 26px}
.hero .row{display:flex;gap:12px;flex-wrap:wrap}
.hstats{display:flex;gap:34px;flex-wrap:wrap;margin-top:38px}
.hstats b{display:block;font-family:var(--fd);font-size:30px;line-height:1}.hstats span{font-size:13px;color:rgba(255,255,255,.6)}
.crumbs{font-size:13.5px;color:rgba(255,255,255,.6);margin-bottom:12px}.crumbs a{color:rgba(255,255,255,.82);text-decoration:none}
.hero.sm{padding:48px 0 40px}.hero.sm h1{font-size:clamp(28px,4vw,46px)}
/* sections */
.sec{padding:56px 0}.sec.tight{padding:36px 0}
.sh{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:22px;flex-wrap:wrap}
.sh h2{font-family:var(--fd);font-size:clamp(24px,3vw,32px);letter-spacing:-.6px;margin:0}
.sh p{margin:4px 0 0;color:var(--mid)}.sh a{font-weight:700;text-decoration:none;font-size:14.5px}
.grid{display:grid;gap:20px}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}.g2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sh)}
/* level chips */
.lv{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;padding:4px 10px;border-radius:999px;letter-spacing:.2px}
.lv-beginner{background:#DCFCE7;color:#166534}.lv-intermediate{background:#DBEAFE;color:#1E40AF}.lv-advanced{background:#EDE9FE;color:#5B21B6}.lv-expert{background:#FEE2E2;color:#991B1B}
/* course card */
.cc{display:flex;flex-direction:column;text-decoration:none;color:inherit;overflow:hidden;transition:.2s}
.cc:hover{transform:translateY(-3px);box-shadow:var(--sh2);border-color:#BFD0F5}
.cc-top{height:118px;display:flex;align-items:center;justify-content:center;font-size:46px;background:linear-gradient(135deg,#EEF4FF,#F3E8FF);position:relative}
.cc-top .lv{position:absolute;top:12px;left:12px}
.cc-b{padding:18px 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
.cc-b .area{font-family:var(--fm);font-size:10.5px;letter-spacing:1.4px;text-transform:uppercase;color:var(--muted)}
.cc-b h3{font-family:var(--fd);font-size:18px;line-height:1.3;margin:0}.cc-b p{margin:0;color:var(--mid);font-size:14.5px;flex:1}
.cc-meta{display:flex;gap:14px;font-size:13px;color:var(--muted);flex-wrap:wrap}
.bar{height:7px;border-radius:99px;background:#E8EDF7;overflow:hidden}.bar i{display:block;height:100%;background:linear-gradient(90deg,var(--blue),var(--cyan));border-radius:99px}
.pct{font-size:12.5px;color:var(--mid);display:flex;justify-content:space-between;margin-top:2px}
/* path card */
.pc{padding:24px;text-decoration:none;color:inherit;display:flex;flex-direction:column;gap:12px;transition:.2s}
.pc:hover{box-shadow:var(--sh2);transform:translateY(-2px)}
.pc .ic{width:52px;height:52px;border-radius:14px;background:linear-gradient(135deg,var(--blue),var(--violet));display:flex;align-items:center;justify-content:center;font-size:26px}
.pc h3{font-family:var(--fd);font-size:20px;margin:0}.pc p{margin:0;color:var(--mid);font-size:14.5px}
.steps{display:flex;flex-wrap:wrap;gap:6px}.steps span{font-size:12px;background:#F1F5FB;border:1px solid var(--line);padding:3px 9px;border-radius:8px;color:var(--mid)}
/* area tiles */
.at{display:flex;gap:14px;align-items:center;padding:18px;text-decoration:none;color:inherit;transition:.2s}.at:hover{border-color:var(--blue)}
.at .i{width:46px;height:46px;border-radius:12px;background:#EEF4FF;display:flex;align-items:center;justify-content:center;font-size:22px;flex:none}
.at b{display:block;font-family:var(--fd);font-size:15.5px}.at small{color:var(--muted)}
/* levels ladder */
.ladder{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative}
.ladder div{padding:22px;border-right:1px solid var(--line)}.ladder div:last-child{border-right:0}
.ladder b{font-family:var(--fd);font-size:17px;display:block;margin:8px 0 4px}.ladder p{margin:0;color:var(--mid);font-size:14px}
/* filters */
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px}
.chips a{padding:8px 15px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--mid);font-weight:600;font-size:13.5px;text-decoration:none}
.chips a.on,.chips a:hover{background:var(--navy);border-color:var(--navy);color:#fff}
.search{display:flex;gap:10px;max-width:560px}.search input{flex:1;padding:13px 16px;border-radius:12px;border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.08);color:#fff;font:inherit}
.search input::placeholder{color:rgba(255,255,255,.55)}
/* course page */
.cl{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:32px;align-items:start}
.side{position:sticky;top:90px;display:flex;flex-direction:column;gap:16px}
.box{padding:22px}.box h4{font-family:var(--fm);font-size:11px;letter-spacing:1.5px;text-transform:uppercase;color:var(--muted);margin:0 0 12px}
.kv{display:grid;grid-template-columns:auto 1fr;gap:8px 14px;font-size:14.5px}.kv span{color:var(--muted)}
.outc{list-style:none;padding:0;margin:0;display:grid;gap:10px}.outc li{display:flex;gap:10px}.outc li:before{content:'✓';color:var(--green);font-weight:800}
.mod{margin-bottom:14px;overflow:hidden}
.mod-h{padding:16px 20px;display:flex;justify-content:space-between;align-items:center;gap:12px;background:#FAFBFE;border-bottom:1px solid var(--line)}
.mod-h b{font-family:var(--fd);font-size:16px}.mod-h small{color:var(--muted)}
.li{display:flex;align-items:center;gap:14px;padding:14px 20px;border-bottom:1px solid var(--line);text-decoration:none;color:inherit}
.li:last-child{border-bottom:0}.li:hover{background:#F7F9FE}
.li .st{width:26px;height:26px;border-radius:50%;border:2px solid #CBD5E1;display:flex;align-items:center;justify-content:center;font-size:12px;flex:none;color:#fff}
.li .st.done{background:var(--green);border-color:var(--green)}.li .st.cur{border-color:var(--blue)}
.li .t{flex:1;font-weight:600;font-size:15px}.li .m{font-size:12.5px;color:var(--muted);white-space:nowrap}
.tag{font-size:11px;font-weight:700;padding:2px 8px;border-radius:6px;background:#FEF3C7;color:#92400E;margin-left:6px}.tag.free{background:#DCFCE7;color:#166534}.tag.q{background:#E0E7FF;color:#3730A3}
/* lesson page */
.ll{display:grid;grid-template-columns:300px minmax(0,1fr);gap:28px;align-items:start}
.lnav{position:sticky;top:84px;max-height:calc(100vh - 100px);overflow:auto;padding:16px 0}
.lnav .ct{padding:0 18px 12px;border-bottom:1px solid var(--line)}.lnav .ct a{text-decoration:none;color:var(--txt);font-family:var(--fd);font-weight:700;font-size:15px}
.lnav .mt{padding:12px 18px 4px;font-family:var(--fm);font-size:10.5px;letter-spacing:1.3px;text-transform:uppercase;color:var(--muted)}
.lnav a.it{display:flex;gap:10px;align-items:flex-start;padding:8px 18px;text-decoration:none;color:var(--mid);font-size:14px;line-height:1.4}
.lnav a.it:hover{background:#F5F8FE}.lnav a.it.on{background:#EEF4FF;color:var(--blue);font-weight:700}
.lnav .d{width:18px;height:18px;border-radius:50%;border:2px solid #CBD5E1;flex:none;margin-top:1px;font-size:10px;display:flex;align-items:center;justify-content:center;color:#fff}.lnav .d.done{background:var(--green);border-color:var(--green)}
.lesson{padding:40px 46px}
.lesson h1{font-family:var(--fd);font-size:clamp(26px,3.4vw,38px);line-height:1.15;letter-spacing:-.8px;margin:6px 0 10px}
.lmeta{display:flex;gap:12px;flex-wrap:wrap;align-items:center;color:var(--muted);font-size:13.5px;margin-bottom:22px}
.intro{font-size:18px;color:#24324d;line-height:1.75;margin-bottom:24px}
.prose{font-size:17px;line-height:1.8;color:#22314d}
.prose h2{font-family:var(--fd);font-size:24px;color:var(--txt);margin:34px 0 10px;line-height:1.3;scroll-margin-top:90px}
.prose h3{font-family:var(--fd);font-size:19px;color:var(--txt);margin:24px 0 8px}
.prose p{margin:0 0 16px}.prose ul,.prose ol{margin:0 0 18px;padding-left:24px}.prose li{margin-bottom:7px}.prose strong{color:var(--txt)}
.prose table{border-collapse:collapse;width:100%;margin:0 0 18px;font-size:15px}.prose th,.prose td{border:1px solid var(--line);padding:8px 10px;text-align:left}.prose th{background:#F5F8FE}
.panel{border-radius:14px;padding:22px 24px;margin:26px 0;border:1px solid var(--line)}
.panel h3{font-family:var(--fd);font-size:17px;margin:0 0 10px;display:flex;gap:8px;align-items:center}
.p-ex{background:#F0F7FF;border-color:#CFE0FF}.p-as{background:#F5F3FF;border-color:#DDD6FE}.p-ck{background:#F0FDF4;border-color:#BBF7D0}.p-q{background:#FFFBEB;border-color:#FDE68A}.p-res{background:#F8FAFC}
.ck{list-style:none;padding:0;margin:0;display:grid;gap:8px}.ck label{display:flex;gap:10px;align-items:flex-start;cursor:pointer;font-size:15.5px}.ck input{width:18px;height:18px;margin-top:3px;accent-color:var(--green)}
.qq{margin-bottom:18px}.qq b{display:block;margin-bottom:8px;font-size:15.5px}.qq label{display:flex;gap:10px;align-items:flex-start;padding:9px 12px;border:1px solid var(--line);border-radius:10px;margin-bottom:6px;background:#fff;cursor:pointer;font-size:15px}
.qq label:hover{border-color:var(--blue)}.qq label.ok{border-color:var(--green);background:#ECFDF5}.qq label.bad{border-color:var(--red);background:#FEF2F2}
.qq .ex{font-size:14px;color:var(--mid);margin-top:4px;display:none}.qq.show .ex{display:block}
.qres{font-weight:700;margin-top:6px}
.lock{position:relative;border-radius:16px;overflow:hidden;margin:20px 0}.lock .fade{filter:blur(4px);opacity:.55;pointer-events:none;user-select:none;max-height:260px;overflow:hidden}
.lock .cta{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:24px;background:linear-gradient(180deg,rgba(245,247,252,.2),rgba(245,247,252,.96) 45%)}
.lock .cta h3{font-family:var(--fd);font-size:22px;margin:0 0 6px}.lock .cta p{color:var(--mid);margin:0 0 16px;max-width:460px}
.lnext{display:flex;justify-content:space-between;gap:12px;margin-top:30px;padding-top:22px;border-top:1px solid var(--line);flex-wrap:wrap}
.done-bar{display:flex;gap:12px;align-items:center;justify-content:space-between;flex-wrap:wrap;background:var(--navy);color:#fff;border-radius:14px;padding:16px 20px;margin-top:26px}
.ac-video{position:relative;padding-top:56.25%;border-radius:14px;overflow:hidden;background:#000;margin:0 0 24px}.ac-video iframe,.ac-video video{position:absolute;inset:0;width:100%;height:100%;border:0}
video.ac-video{padding:0;height:auto;position:static;width:100%}
.vph{border:2px dashed #C9D6EE;border-radius:14px;padding:22px;text-align:center;color:var(--muted);margin:0 0 24px;background:#FAFCFF}
.res{display:flex;gap:12px;align-items:center;padding:10px 0;border-top:1px solid var(--line)}.res:first-of-type{border-top:0}.res .i{font-size:22px}.res a{font-weight:700;text-decoration:none}
.flash{padding:12px 16px;border-radius:12px;margin:14px 0;font-weight:600}.flash.ok{background:#DCFCE7;color:#14532D}.flash.err{background:#FEE2E2;color:#7F1D1D}.flash.warn{background:#FEF3C7;color:#78350F}
.fi{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:11px;font:inherit;background:#fff}.fi:focus{outline:2px solid #BFD3FF;border-color:var(--blue)}
.fg{margin-bottom:14px}.fg label{display:block;font-weight:700;font-size:14px;margin-bottom:6px}
textarea.fi{min-height:120px}
/* dashboard */
.stat{padding:20px}.stat b{font-family:var(--fd);font-size:30px;display:block;line-height:1}.stat span{color:var(--muted);font-size:13.5px}
.rec{display:flex;gap:14px;padding:16px;text-decoration:none;color:inherit;align-items:center}.rec .i{width:46px;height:46px;border-radius:12px;background:#EEF4FF;display:flex;align-items:center;justify-content:center;font-size:22px;flex:none}
.rec b{display:block;font-size:15px}.rec small{color:var(--muted)}.rec:hover{border-color:var(--blue)}
.empty{padding:34px;text-align:center;color:var(--mid)}
/* article */
.art{padding:44px 50px}
/* footer */
.af{background:var(--navy);color:rgba(255,255,255,.7);padding:44px 0 30px;margin-top:40px;font-size:14px}
.af .wrap{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:28px}.af b{color:#fff;display:block;margin-bottom:10px;font-family:var(--fd)}
.af a{color:rgba(255,255,255,.7);text-decoration:none;display:block;margin-bottom:6px}.af a:hover{color:#fff}
.af .cp{grid-column:1/-1;border-top:1px solid rgba(255,255,255,.1);padding-top:18px;margin-top:10px;font-size:12.5px}
@media(max-width:1024px){.g4{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(2,1fr)}.cl,.ll{grid-template-columns:1fr}.side,.lnav{position:static;max-height:none}.ladder{grid-template-columns:repeat(2,1fr)}.ladder div:nth-child(2){border-right:0}}
@media(max-width:760px){.ah-nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--navy);flex-direction:column;padding:10px 16px 16px}.ah-nav.open{display:flex}.burger{display:block}.ah-r .lnk{display:none}
.g2,.g3,.g4,.ladder{grid-template-columns:1fr}.ladder div{border-right:0;border-bottom:1px solid var(--line)}.hero{padding:48px 0 44px}.lesson,.art{padding:24px 20px}.prose{font-size:16px}.af .wrap{grid-template-columns:1fr 1fr}.hstats{gap:22px}.ah .wrap{gap:12px}}
@media print{.ah,.af,.lnav,.side,.lnext,.done-bar{display:none!important}}
/* assessments */
.exam-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.exam-steps .es{border:1px solid var(--line);border-radius:12px;padding:12px 14px;background:#fff;font-size:14px}
.exam-steps .es b{display:block;margin-bottom:4px}
.exam-steps .es span{color:var(--mid)}
.exam-steps .es.done{border-color:var(--green);background:#ECFDF5}
.exam-steps .es.done b::after{content:" ✓";color:var(--green)}
@media(max-width:760px){.exam-steps{grid-template-columns:1fr 1fr}}
.exam-top{display:flex;justify-content:space-between;font-size:14px;color:var(--mid)}
.qq label.idk{border-style:dashed;color:var(--muted)}
.hero.sm .sub{max-width:760px}
.btn-google{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;padding:12px 16px;border:1px solid #dadce0;border-radius:12px;background:#fff;color:#1f1f1f;font:600 15px/1 "DM Sans",sans-serif;text-decoration:none;transition:background .15s,box-shadow .15s}
.btn-google:hover{background:#f8f9fa;box-shadow:0 1px 3px rgba(0,0,0,.12)}
.or{display:flex;align-items:center;gap:12px;color:var(--muted,#8a8f98);font-size:13px;margin:16px 0}
.or::before,.or::after{content:"";flex:1;height:1px;background:var(--line,#e5e7eb)}
/* home: how it works */
.how{display:grid;grid-template-columns:1fr 1.25fr;gap:40px;align-items:center}
.how h2{font-family:var(--fd);font-size:clamp(28px,3.4vw,40px);line-height:1.1;margin:10px 0 18px}
.how-steps{display:grid;gap:14px}
.how-steps>div{display:flex;gap:14px;align-items:flex-start}
.how-steps .n{flex:none;width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:#EEF2FF;font-size:18px}
.how-steps b{display:block;font-size:16.5px}.how-steps p{margin:2px 0 0;color:var(--mid);font-size:15px;line-height:1.5}
.how-video .acv{margin:0}
@media(max-width:900px){.how{grid-template-columns:1fr}}
/* motivation strip */
.mot{display:grid;grid-template-columns:1.2fr 1fr 1.2fr;gap:16px;margin-bottom:20px}
.mot .card{padding:18px 20px}
.mot b{display:block;font-family:var(--fd);font-size:22px;margin:6px 0 2px}
.mot .xp{font-size:13.5px;color:var(--muted)}
.mot .wk{display:flex;gap:6px;margin-top:8px}.mot .wk span{width:28px;height:28px;border-radius:8px;display:grid;place-items:center;font-size:12px;font-weight:700;background:#F1F5F9;color:var(--muted)}
.mot .wk span.on{background:#F97316;color:#fff}
.mot .bd{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}.mot .bd span{width:36px;height:36px;border-radius:10px;display:grid;place-items:center;font-size:19px;background:#F1F5F9;filter:grayscale(1);opacity:.45}
.mot .bd span.on{filter:none;opacity:1;background:#FEF3C7}
@media(max-width:860px){.mot{grid-template-columns:1fr}}
.helpful{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin:18px 0 6px;font-size:14.5px;color:var(--mid)}
.helpful button{border:1px solid var(--line);background:#fff;border-radius:999px;padding:7px 14px;font:600 13.5px/1 inherit;cursor:pointer}
.helpful button:hover{border-color:var(--blue)}
/* Community (Q&A forum) */
.sr{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.hp{position:absolute!important;left:-9999px;width:1px;height:1px;overflow:hidden}
.lnk-btn{background:none;border:0;padding:0;color:var(--blue);font:inherit;font-size:13.5px;cursor:pointer;font-weight:600}
.fo-stats{display:flex;gap:26px;flex-wrap:wrap;margin-top:6px;color:rgba(255,255,255,.8)}.fo-stats b{color:#fff;font-size:20px;margin-right:4px}
.fo-wrap{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:26px;align-items:start}
.fo-bar{display:flex;gap:12px;justify-content:space-between;align-items:center;flex-wrap:wrap;margin-bottom:12px}
.fo-search{display:flex;gap:8px;flex:1;min-width:240px}.fo-search .fi{margin:0}
.fo-tabs{display:flex;gap:6px;flex-wrap:wrap;margin:0 0 14px}.fo-tabs a{padding:7px 14px;border-radius:999px;border:1px solid var(--line);font-weight:600;font-size:14px;color:var(--mid)}.fo-tabs a.on{background:var(--navy);color:#fff;border-color:var(--navy)}
.fo-item{display:flex;gap:18px;padding:18px 20px;margin-bottom:12px}
.fo-nums{display:flex;flex-direction:column;gap:6px;min-width:74px;font-size:12px;color:var(--muted);text-align:center}
.fo-nums span{display:flex;flex-direction:column;padding:4px;border-radius:8px}.fo-nums b{font-size:17px;color:var(--ink)}
.fo-nums .has{border:1px solid #16A34A;color:#15803D}.fo-nums .has b{color:#15803D}.fo-nums .ok{background:#16A34A;color:#fff}.fo-nums .ok b{color:#fff}
.fo-body{min-width:0;flex:1}.fo-body h2{font-size:18px;margin:0 0 6px;line-height:1.3}.fo-body h2 a{color:var(--ink)}.fo-body h2 a:hover{color:var(--blue)}.fo-body p{margin:0 0 8px;color:var(--mid);font-size:14.5px}
.fo-meta{display:flex;gap:8px;flex-wrap:wrap;align-items:center;font-size:13px;color:var(--muted)}
.fo-tag{background:#EEF2FF;color:#3730A3;padding:3px 10px;border-radius:999px;font-weight:600}
.fo-team{font-style:normal;background:var(--blue);color:#fff;font-size:10.5px;padding:2px 7px;border-radius:6px;font-weight:700;letter-spacing:.5px}
.fo-side{display:flex;flex-direction:column;gap:14px;position:sticky;top:90px}
.fo-box{padding:18px}.fo-box h3{margin:0 0 10px;font-size:15px}.fo-box>a:not(.btn){display:block;padding:7px 10px;border-radius:8px;color:var(--ink);font-size:14.5px}.fo-box>a:not(.btn):hover,.fo-box>a.on{background:#F1F5F9}
.fo-helper{display:flex;justify-content:space-between;padding:6px 0;font-size:14px;border-bottom:1px solid var(--line)}.fo-helper:last-child{border:0}
.fo-how{margin:0;padding-left:18px;color:var(--mid);font-size:14px}.fo-how li{margin-bottom:6px}
.fo-q,.fo-a{display:flex;gap:18px;padding:24px;margin:12px 0}.fo-c{flex:1;min-width:0}
.fo-q h1{font-family:var(--fd);font-size:clamp(24px,3vw,32px);line-height:1.2;margin:0 0 10px}
.fo-text{margin-top:14px;font-size:16.5px}.fo-text code{background:#F1F5F9;padding:1px 6px;border-radius:5px;font-size:.9em}.fo-text a{word-break:break-all}
.fo-vote{display:flex;flex-direction:column;align-items:center;gap:4px;min-width:44px}.fo-vote b{font-size:19px}
.fo-vote button{width:38px;height:34px;border-radius:10px;border:1px solid var(--line);background:#fff;cursor:pointer;color:var(--mid);font-size:14px}
.fo-vote button:hover:not(:disabled){border-color:var(--blue);color:var(--blue)}.fo-vote button.on{background:var(--blue);border-color:var(--blue);color:#fff}.fo-vote button:disabled{opacity:.4;cursor:not-allowed}
.fo-a.acc{border:2px solid #16A34A}.fo-badge{display:inline-block;background:#DCFCE7;color:#14532D;font-weight:700;font-size:13px;padding:4px 10px;border-radius:8px}
.fo-acts{display:flex;gap:14px;flex-wrap:wrap;align-items:center;margin-top:12px;font-size:13.5px}
.fo-rep summary{cursor:pointer;color:var(--muted);font-size:13.5px}.fo-rep form{display:flex;gap:8px;margin-top:8px}.fo-rep .fi{margin:0;padding:6px 10px;font-size:13.5px}
.fo-hidden{opacity:.55;border:2px dashed #F59E0B}
.fo-h{font-size:20px;margin:22px 0 4px}.fo-form{padding:24px;margin-top:16px}
.fo-msg{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:var(--navy);color:#fff;padding:10px 18px;border-radius:12px;z-index:99;font-weight:600}
.pager{display:flex;gap:6px;flex-wrap:wrap;margin-top:16px}.pager a{padding:7px 13px;border-radius:9px;border:1px solid var(--line);font-weight:600}.pager a.on{background:var(--navy);color:#fff}
.lesson-ask{display:flex;gap:14px;align-items:center;justify-content:space-between;flex-wrap:wrap;margin-top:18px;padding:16px 18px;border-radius:14px;background:#F8FAFC;border:1px solid var(--line)}
.lesson-ask ul{margin:6px 0 0;padding-left:18px;font-size:14px}
@media(max-width:900px){.fo-wrap{grid-template-columns:1fr}.fo-side{position:static}.fo-item{gap:12px;padding:14px}.fo-nums{min-width:58px}.fo-nums .v{display:none}.fo-q,.fo-a{gap:12px;padding:16px}}
/* Practice Labs */
.lab-h{font-size:21px;margin:26px 0 12px}.lab-grid{gap:16px}
.lab-card{display:flex;gap:16px;padding:22px;color:var(--ink);transition:transform .15s,box-shadow .15s}.lab-card:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(15,23,42,.1)}
.lab-card .li{font-size:34px;line-height:1}.lab-card h3{margin:0 0 6px;font-size:18px}.lab-card p{margin:0 0 10px;color:var(--mid);font-size:14.5px}
.lab-go{color:var(--blue);font-weight:700;font-size:14px}.lab-best{display:inline-block;background:#DCFCE7;color:#14532D;font-weight:700;font-size:13px;padding:3px 10px;border-radius:8px}
.lab-title{font-family:var(--fd);font-size:clamp(28px,4vw,40px);margin:10px 0 6px}.lab-sub{color:var(--mid);font-size:17px;max-width:820px;margin:0 0 20px}
.lab{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:20px;align-items:start}
.lab-in,.lab-out{padding:24px}.lab-out{position:sticky;top:90px;min-height:200px}
.lab-in label small.cc{float:right;font-family:var(--fm);color:var(--muted)}.lab-in label small.cc.over{color:#DC2626;font-weight:700}
.lab-score{display:flex;gap:18px;align-items:center;margin-bottom:12px}
.ring{--p:0;width:104px;height:104px;border-radius:50%;display:grid;place-items:center;align-content:center;background:conic-gradient(var(--c,#2563EB) calc(var(--p)*1%),#E2E8F0 0);position:relative;flex:none}
.ring::before{content:"";position:absolute;inset:10px;border-radius:50%;background:#fff}.ring b,.ring small{position:relative}.ring b{font-size:30px;line-height:1}.ring small{color:var(--muted);font-size:12px}
.ring.hi{--c:#16A34A}.ring.mid{--c:#F59E0B}.ring.lo{--c:#DC2626}
.lab-res h3{font-size:15px;margin:14px 0 8px}.lab-ck{list-style:none;margin:0;padding:0}.lab-ck li{padding:9px 12px 9px 34px;border-radius:10px;margin-bottom:6px;position:relative;font-size:14.5px}
.lab-ck li::before{position:absolute;left:11px;top:9px;font-weight:800}.lab-ck li.no{background:#FEF2F2}.lab-ck li.no::before{content:"✗";color:#DC2626}.lab-ck li.ok{background:#F0FDF4}.lab-ck li.ok::before{content:"✓";color:#16A34A}
.lab-ck li span{display:block;color:var(--mid);font-size:13.5px;margin-top:2px}
.lab-kpis{display:grid;grid-template-columns:1fr 1fr;gap:10px}.lab-kpis div{background:#F8FAFC;border:1px solid var(--line);border-radius:12px;padding:12px 14px}
.lab-kpis small{display:block;color:var(--muted);font-size:12.5px}.lab-kpis b{display:block;font-size:22px;margin:2px 0}.lab-kpis span{color:var(--mid);font-size:12.5px}
.lab-verdict-box{padding:12px 14px;border-radius:12px;margin-bottom:12px;font-weight:600;font-size:15px}.lab-verdict-box.ok{background:#DCFCE7;color:#14532D}.lab-verdict-box.mid{background:#FEF3C7;color:#78350F}.lab-verdict-box.no{background:#FEE2E2;color:#7F1D1D}
.lab-foot{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:20px}
@media(max-width:900px){.lab,.lab-foot{grid-template-columns:1fr}.lab-out{position:static}.lab-kpis{grid-template-columns:1fr 1fr}}
/* Learn → Earn */
.earn-tracks{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px}
.earn-t{padding:20px}.earn-t .i{font-size:30px}.earn-t h3{margin:8px 0 6px;font-size:17px}.earn-t p{color:var(--mid);font-size:14px;margin:0 0 10px}.earn-t ul{margin:0;padding-left:18px;font-size:13.5px}
.earn-t li.ok{color:#15803D;font-weight:600}
.earn-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;counter-reset:s}.earn-steps div{padding:18px;counter-increment:s}.earn-steps div::before{content:counter(s);display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:var(--blue);color:#fff;font-weight:800;margin-bottom:8px}
.earn-steps b{display:block;margin-bottom:4px}.earn-steps span{color:var(--mid);font-size:14px}
.earn-proof{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}.earn-proof div{background:#F8FAFC;border:1px solid var(--line);border-radius:12px;padding:12px;text-align:center}.earn-proof b{display:block;font-size:24px}.earn-proof small{color:var(--muted)}
@media(max-width:900px){.earn-steps{grid-template-columns:1fr 1fr}}
@media(max-width:1340px){.ah-nav a{padding:8px 8px;font-size:14px}}
.ah-nav a{white-space:nowrap}
@media(max-width:1180px){.ah-nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--navy);flex-direction:column;padding:10px 16px 16px;z-index:50}.ah-nav.open{display:flex}.burger{display:block}}
.fo-body h2 a,.fo-box>a:not(.btn),.fo-tag,.fo-tabs a,.pager a,.lab-card,.fo-meta a{text-decoration:none}
.fo-body h2 a:hover,.fo-box>a:not(.btn):hover{text-decoration:underline}
.lab-score[hidden]{display:none}.ah .btn{white-space:nowrap}
.pl-ol{list-style:none;margin:0;padding:0}.steps.pl-ol{display:flex;flex-wrap:wrap}.steps.pl-ol li a{color:inherit;text-decoration:none}
.steps.pl-ol li{font-size:12px;background:#F1F5FB;border:1px solid var(--line);padding:3px 9px;border-radius:8px;color:var(--mid)}
/* locked lesson: readable preview fading out, then a clear unlock card (no overlap) */
.lock{overflow:visible}
.lock .fade{filter:none;opacity:1;max-height:230px;-webkit-mask-image:linear-gradient(180deg,#000 35%,transparent);mask-image:linear-gradient(180deg,#000 35%,transparent)}
.lock .cta{position:relative;inset:auto;margin-top:-10px;padding:30px 24px;border-radius:18px;border:1px solid #DBEAFE;background:linear-gradient(135deg,#EFF6FF,#F5F3FF);box-shadow:0 10px 30px rgba(37,99,235,.08)}
/* Home hero with product preview */
.hero-x{padding:64px 0 60px}
.hx{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:48px;align-items:center}
.hx-copy h1{font-size:clamp(34px,4.6vw,58px)}
.hx-free{margin:14px 0 0;color:rgba(255,255,255,.75);font-size:15px}.hx-free a{color:#67E8F9;font-weight:700;text-decoration:none;border-bottom:1px solid rgba(103,232,249,.4)}.hx-free a:hover{border-color:#67E8F9}
.hx-art{position:relative;min-height:440px}
.hx-card{position:absolute;background:#fff;color:var(--ink);border-radius:20px;box-shadow:0 30px 80px rgba(0,0,0,.45);overflow:hidden}
.hx-lesson{left:6%;right:4%;top:40px;transform:rotate(-1.5deg)}
.hx-thumb{aspect-ratio:16/9;background:#F4EFE6 center/cover;position:relative}
.hx-play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:64px;height:64px;border-radius:50%;background:rgba(37,99,235,.95);color:#fff;display:grid;place-items:center;font-size:22px;box-shadow:0 10px 30px rgba(37,99,235,.5)}
.hx-dur{position:absolute;right:10px;bottom:10px;background:rgba(15,23,42,.8);color:#fff;font-size:12px;padding:3px 8px;border-radius:6px;font-family:var(--fm)}
.hx-lb{padding:14px 18px 18px}.hx-lb small{color:var(--muted);font-size:12px;font-family:var(--fm);letter-spacing:.5px}.hx-lb b{display:block;font-size:17px;margin:4px 0 10px}
.hx-chip{position:absolute;display:flex;gap:12px;align-items:center;background:#fff;color:var(--ink);padding:12px 16px;border-radius:16px;box-shadow:0 18px 50px rgba(0,0,0,.35);font-size:14px;animation:hxf 6s ease-in-out infinite}
.hx-chip b{display:block;font-size:14px}.hx-chip small{color:var(--muted);font-size:12px}
.hx-chip .ok{width:34px;height:34px;border-radius:50%;background:#16A34A;color:#fff;display:grid;place-items:center;font-weight:800}
.hx-chip .cert{font-size:26px;line-height:1}
.ring.sm{width:44px;height:44px}.ring.sm::before{inset:5px}.ring.sm b{font-size:14px}
.hx-c1{left:-4%;top:0;animation-delay:0s}.hx-c2{right:-2%;top:46%;animation-delay:1.5s}.hx-c3{left:0;bottom:10px;animation-delay:3s}.hx-c4{right:6%;bottom:-18px;animation-delay:4.5s}
@keyframes hxf{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
@media(prefers-reduced-motion:reduce){.hx-chip{animation:none}}
@media(max-width:1000px){.hx{grid-template-columns:1fr}.hx-art{min-height:380px;max-width:560px;width:100%;margin:10px auto 0}}
@media(max-width:600px){.hx-art{min-height:300px}.hx-c2,.hx-c4{display:none}.hx-chip{padding:10px 12px}.hx-lesson{left:0;right:0;top:44px}}
/* Course hero preview */
.ch-grid{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,.8fr);gap:40px;align-items:center}
.ch-facts{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}.ch-facts span{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);color:rgba(255,255,255,.85);font-size:13px;padding:6px 12px;border-radius:999px}
.ch-prev{display:block;border-radius:18px;overflow:hidden;background:#fff;color:var(--ink);text-decoration:none;box-shadow:0 30px 70px rgba(0,0,0,.45);transition:transform .2s}.ch-prev:hover{transform:translateY(-3px)}
.ch-img{display:block;aspect-ratio:16/9;background:#F4EFE6 center/cover;position:relative}
.ch-cap{display:block;padding:14px 18px}.ch-cap small{display:block;color:#15803D;font-weight:700;font-size:12px}.ch-cap b{display:block;font-size:16px;margin-top:3px}
@media(max-width:900px){.ch-grid{grid-template-columns:1fr}.ch-prev{max-width:520px}}
.hx-card b,.hx-chip b,.hx-chip .ring b{color:var(--ink)!important;-webkit-text-fill-color:var(--ink)}
.hx-c1{left:-2%;top:6px}.hx-c4{right:-3%;top:-6px;bottom:auto}.hx-c2{right:-4%;top:auto;bottom:70px}.hx-c3{left:-2%;bottom:20px}
.hx-lesson{top:70px}
.ch-cap b{color:var(--ink)!important}.ch-prev{color:var(--ink)!important}
.ah-hi{white-space:nowrap}@media(max-width:1440px){.ah-hi{display:none}}.ah .btn{white-space:nowrap}
.lnav{position:sticky;top:88px;max-height:calc(100vh - 108px);overflow:auto}
.fgrid{gap:0 16px}
.hx-c3{bottom:-28px}.hx-c2{bottom:-10px}.hx-art{margin-bottom:20px}
.lab-ic{flex:none;width:56px;height:56px;border-radius:16px;background:linear-gradient(135deg,#EFF6FF,#EDE9FE);border:1px solid #DDE3F3;display:grid;place-items:center;font-size:28px}
.lab-card:hover .lab-ic{background:linear-gradient(135deg,var(--blue),var(--violet))}
.labs-hero{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,.8fr);gap:40px;align-items:center}
.lh-demo{background:#fff;color:var(--ink);border-radius:20px;padding:20px;box-shadow:0 30px 70px rgba(0,0,0,.45);transform:rotate(1deg)}
.lh-demo .lh-top{display:flex;gap:14px;align-items:center;margin-bottom:12px}.lh-demo .lh-top b{display:block;color:var(--ink)}.lh-demo .lh-top small{color:var(--muted)}
.lh-demo ul{list-style:none;margin:0;padding:0}.lh-demo li{padding:8px 10px 8px 30px;border-radius:10px;margin-bottom:6px;font-size:13.5px;position:relative;color:var(--ink)}
.lh-demo li::before{position:absolute;left:10px;font-weight:800}.lh-demo li.ok{background:#F0FDF4}.lh-demo li.ok::before{content:"✓";color:#16A34A}.lh-demo li.no{background:#FEF2F2}.lh-demo li.no::before{content:"✗";color:#DC2626}
@media(max-width:900px){.labs-hero{grid-template-columns:1fr}.lh-demo{display:none}}
@media(max-width:900px){.ll{display:flex;flex-direction:column}.ll>.lesson{order:1}.ll>.lnav{order:2;position:static;max-height:none}}
@media(max-width:600px){.hx-c3{display:none}}
.fo-nums .ok{background:#15803D}
.vlock{display:block;position:relative;aspect-ratio:16/9;border-radius:18px;overflow:hidden;background:#F4EFE6 center/cover;margin:18px 0;text-decoration:none;box-shadow:0 14px 40px rgba(15,27,51,.14)}
.vlock::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,22,40,.35),rgba(10,22,40,.82));backdrop-filter:blur(2px)}
.vl-in{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;text-align:center;color:#fff;padding:20px}
.vl-ic{font-size:34px}.vl-in b{font-family:var(--fd);font-size:clamp(18px,2.4vw,26px)}.vl-in small{color:rgba(255,255,255,.8)}.vl-in .btn{margin-top:8px}.vl-li{font-size:13px;color:rgba(255,255,255,.75);text-decoration:underline}
/* Chat box */
.chb{position:fixed;right:20px;bottom:20px;z-index:80;font-family:var(--fb)}
.chb-btn{display:flex;align-items:center;gap:8px;border:0;border-radius:999px;padding:12px 18px 12px 14px;background:linear-gradient(135deg,var(--blue),var(--violet));color:#fff;font-weight:700;font-size:15px;cursor:pointer;box-shadow:0 12px 30px rgba(0,87,255,.35)}
.chb-btn:hover{transform:translateY(-1px)}.chb-ic{font-size:20px;line-height:1}
.chb-n{background:#DC2626;color:#fff;border-radius:999px;font-size:12px;min-width:20px;height:20px;display:grid;place-items:center;padding:0 6px}
.chb-p{position:absolute;right:0;bottom:64px;width:360px;max-width:calc(100vw - 32px);height:500px;max-height:calc(100vh - 120px);background:#fff;border-radius:20px;box-shadow:0 30px 80px rgba(15,27,51,.3);display:flex;flex-direction:column;overflow:hidden;border:1px solid var(--line)}
.chb-p[hidden]{display:none}
.chb-h{display:flex;gap:12px;align-items:center;padding:14px 16px;background:var(--navy);color:#fff}.chb-h b{display:block;color:#fff}.chb-h small{color:rgba(255,255,255,.75);font-size:12px}
.chb-h .dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:#22C55E;margin-right:4px}
.chb-av{width:38px;height:38px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--violet));display:grid;place-items:center;font-weight:800}
.chb-x{margin-left:auto;background:none;border:0;color:#fff;font-size:18px;cursor:pointer}
.chb-m{flex:1;overflow:auto;padding:14px;background:#F8FAFC;display:flex;flex-direction:column;gap:8px}
.chb-hello{background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px 12px;font-size:14px;color:var(--mid)}
.chb-msg{max-width:82%;padding:9px 12px;border-radius:14px;font-size:14px;white-space:pre-wrap;word-wrap:break-word}
.chb-msg.me{align-self:flex-end;background:var(--blue);color:#fff;border-bottom-right-radius:4px}.chb-msg.them{align-self:flex-start;background:#fff;border:1px solid var(--line);color:var(--ink);border-bottom-left-radius:4px}
.chb-msg small{display:block;font-size:11px;opacity:.7;margin-top:3px}
.chb-f{display:flex;gap:8px;padding:10px;border-top:1px solid var(--line);background:#fff}.chb-f textarea{flex:1;resize:none;border:1px solid var(--line);border-radius:12px;padding:10px 12px;font:inherit;font-size:14px;max-height:120px}
.chb-f button{width:44px;border:0;border-radius:12px;background:var(--blue);color:#fff;font-size:16px;cursor:pointer}
@media(max-width:600px){.chb{right:12px;bottom:12px}.chb-lbl{display:none}.chb-btn{padding:14px}.chb-p{position:fixed;inset:auto 8px 76px 8px;width:auto;height:70vh}}
@media print{.chb{display:none}}
.chb-n[hidden]{display:none}