:root{--ink:#172033;--muted:#718096;--line:#e7ebf2;--surface:#fff;--canvas:#f6f8fb;--brand:#4f46e5;--brand-dark:#3730a3;--teal:#0f9d8a;--shadow:0 18px 50px rgba(28,39,70,.08);--radius:22px}*{box-sizing:border-box}body{margin:0;background:var(--canvas);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}button,input,select{font:inherit}button{cursor:pointer}.app-shell{display:flex;min-height:100vh}.sidebar{width:260px;background:#101827;color:#d8e0ee;padding:28px 18px;display:flex;flex-direction:column;position:fixed;inset:0 auto 0 0}.brand{display:flex;align-items:center;gap:12px;color:#fff;text-decoration:none;padding:4px 10px 42px}.brand-mark{width:40px;height:40px;border-radius:13px;display:grid;place-items:center;background:linear-gradient(145deg,#818cf8,#4f46e5);font-weight:850;font-size:20px;box-shadow:0 10px 25px rgba(79,70,229,.35)}.brand strong,.brand small,.profile-button strong,.profile-button small,.support-card strong,.support-card small{display:block}.brand strong{font-size:15px;letter-spacing:-.02em}.brand small,.profile-button small,.support-card small{color:#8794aa;font-size:11px;margin-top:3px}.nav-list{display:grid;gap:7px}.nav-item{border:0;background:transparent;color:#98a5b9;text-align:left;padding:13px 14px;border-radius:12px;font-size:13px;font-weight:650;transition:.2s}.nav-item:hover,.nav-item.is-active{color:#fff;background:rgba(129,140,248,.16)}.nav-item.is-active{box-shadow:inset 3px 0 #818cf8}.sidebar-bottom{margin-top:auto;display:grid;gap:20px}.support-card{border:1px solid rgba(255,255,255,.08);border-radius:15px;padding:13px;display:flex;gap:10px;align-items:center;font-size:12px}.status-dot{width:8px;height:8px;background:#39d29f;border-radius:50%;box-shadow:0 0 0 4px rgba(57,210,159,.12)}.profile-button{border:0;background:transparent;color:#fff;display:flex;align-items:center;gap:9px;text-align:left;padding:7px}.avatar{width:30px;height:30px;display:grid;place-items:center;border-radius:50%;background:#f0b38c;color:#542b20;font-weight:800;font-size:12px}.chevron{margin-left:auto;color:#7f8da3;font-size:22px}.main-content{margin-left:260px;width:calc(100% - 260px);padding:32px clamp(24px,5vw,76px) 64px}.topbar{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:38px}.eyebrow{text-transform:uppercase;letter-spacing:.12em;font-size:10px;font-weight:800;color:#8793a7;margin:0 0 8px}.topbar h1{font-size:28px;letter-spacing:-.04em;margin:0}.topbar-actions{display:flex;gap:12px;align-items:center}.icon-button{border:1px solid var(--line);background:#fff;width:40px;height:40px;border-radius:12px;color:#667085}.outline-button,.soft-button{border:1px solid #dfe4f0;background:#fff;border-radius:11px;color:var(--brand-dark);font-weight:700;padding:11px 15px;font-size:12px}.view{max-width:1180px}.welcome-grid{display:grid;grid-template-columns:minmax(0,1.65fr) minmax(260px,.8fr);gap:20px}.hero-card{min-height:300px;border-radius:var(--radius);padding:36px 40px;background:linear-gradient(125deg,#3536a5,#6257d8 60%,#8780ed);color:#fff;display:flex;justify-content:space-between;overflow:hidden;position:relative;box-shadow:0 22px 55px rgba(67,61,181,.25)}.hero-card h2{font-size:40px;line-height:1.05;letter-spacing:-.06em;max-width:340px;margin:19px 0 13px}.hero-card p{color:#dfe0ff;line-height:1.6;max-width:430px;font-size:14px;margin:0 0 25px}.pill{display:inline-flex;padding:7px 10px;border-radius:99px;font-size:10px;font-weight:800;letter-spacing:.05em;text-transform:uppercase}.pill-light{background:rgba(255,255,255,.14);color:#fff}.primary-button{border:0;background:var(--brand);color:#fff;border-radius:12px;padding:13px 17px;font-size:12px;font-weight:800;box-shadow:0 8px 20px rgba(79,70,229,.2);transition:.2s}.primary-button:hover{background:var(--brand-dark);transform:translateY(-1px)}.hero-card .primary-button{background:#fff;color:#3730a3;box-shadow:none}.primary-button span{margin-left:12px}.hero-orbit{width:190px;height:190px;border:1px solid rgba(255,255,255,.2);border-radius:50%;align-self:center;position:relative;margin-right:20px}.hero-orbit:before{content:"";position:absolute;inset:28px;border:1px dashed rgba(255,255,255,.23);border-radius:50%}.orbit-core{position:absolute;inset:67px;display:grid;place-items:center;background:#fff;color:#4f46e5;border-radius:50%;font-weight:900;font-size:14px;box-shadow:0 0 35px rgba(255,255,255,.3)}.orbit-dot{position:absolute;width:13px;height:13px;border-radius:50%;background:#b5b8ff}.dot-one{top:12px;left:44px}.dot-two{right:1px;top:91px;background:#51ddc4}.dot-three{left:30px;bottom:30px}.focus-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:27px;box-shadow:var(--shadow);display:flex;flex-direction:column}.card-heading{display:flex;gap:12px;align-items:center}.section-icon{width:34px;height:34px;display:grid;place-items:center;background:#eef0ff;border-radius:11px;color:var(--brand);font-size:20px}.card-heading h3{font-size:17px;margin:0;letter-spacing:-.03em}.focus-card>h3{font-size:19px;margin:12px 0 0;letter-spacing:-.04em}.focus-topic{font-size:22px;font-weight:800;letter-spacing:-.05em;line-height:1.1;margin:34px 0 8px}.focus-meta{display:flex;gap:16px;color:var(--muted);font-size:12px;margin-bottom:25px}.soft-button{margin-top:auto;text-align:center;background:#f7f8ff;border-color:#e4e6ff}.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:13px;margin:20px 0 47px}.metric-card{background:#fff;border:1px solid var(--line);border-radius:17px;padding:19px 20px}.metric-label{font-size:11px;color:var(--muted);display:block;margin-bottom:12px}.metric-card strong{display:block;font-size:25px;letter-spacing:-.06em}.metric-card small{color:#a0a8b7;font-size:11px}.section-header{display:flex;justify-content:space-between;align-items:end;margin-bottom:18px}.section-header h2{font-size:22px;letter-spacing:-.05em;margin:0}.text-button{border:0;background:none;color:var(--brand);font-size:12px;font-weight:800}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.feature-card{background:#fff;border:1px solid var(--line);border-radius:18px;text-align:left;padding:24px;min-height:190px;transition:.2s}.feature-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#d6d8ff}.feature-number{font-size:11px;color:#a1a8ba;font-weight:800}.feature-card h3{font-size:18px;margin:28px 0 8px;letter-spacing:-.04em}.feature-card p{font-size:12px;color:var(--muted);line-height:1.6;margin:0 0 17px}.feature-link{font-size:11px;color:var(--brand);font-weight:800}.page-intro{display:flex;justify-content:space-between;align-items:center;margin-bottom:28px}.page-intro h2{font-size:34px;letter-spacing:-.06em;margin:0 0 10px}.page-intro p:not(.eyebrow){color:var(--muted);max-width:600px;line-height:1.6;margin:0}.large-icon{font-size:75px;color:#a8a5fa;padding-right:40px}.practice-form{display:grid;grid-template-columns:repeat(4,1fr) auto;gap:12px;align-items:end;background:#fff;border:1px solid var(--line);padding:20px;border-radius:18px;margin-bottom:20px}.practice-form label{font-size:11px;font-weight:800;color:#637087}.practice-form input,.practice-form select{display:block;width:100%;margin-top:8px;padding:12px;border:1px solid #dfe4ec;border-radius:10px;background:#fff;color:var(--ink);font-size:12px}.inline-status{min-height:22px;color:var(--muted);font-size:12px}.session-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:28px;margin-top:18px}.session-meta{display:flex;justify-content:space-between;color:var(--muted);font-size:11px;margin-bottom:20px}.session-card h3{font-size:23px;line-height:1.35;letter-spacing:-.04em;max-width:780px}.answer-grid{display:grid;gap:10px;margin-top:25px}.answer-option{border:1px solid var(--line);background:#fff;border-radius:13px;padding:15px;text-align:left;display:flex;gap:13px;align-items:flex-start}.answer-option:hover{border-color:#8d8bf3;background:#fafaff}.answer-key{width:27px;height:27px;display:grid;place-items:center;border-radius:8px;background:#f0f1f8;color:#606b80;font-weight:800;font-size:11px;flex:none}.answer-option.is-selected{border-color:var(--brand);background:#f7f7ff}.answer-option.is-correct{border-color:#23a878;background:#effcf6}.answer-option.is-wrong{border-color:#e06c77;background:#fff5f5}.answer-result{margin-top:22px;border-radius:13px;padding:17px;font-size:13px;line-height:1.6}.answer-result.correct{background:#effcf6;color:#176b51}.answer-result.wrong{background:#fff5f5;color:#8c3440}.question-actions{display:flex;justify-content:flex-end;margin-top:18px}.empty-state{text-align:center;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:90px 30px}.empty-icon{font-size:55px;color:#aaa8f3;display:block;margin-bottom:18px}.empty-state h2{font-size:27px;letter-spacing:-.05em;margin:0 0 12px}.empty-state p:not(.eyebrow){color:var(--muted);font-size:13px;margin:0 auto 24px;max-width:430px;line-height:1.6}@media(max-width:1050px){.sidebar{width:220px}.main-content{margin-left:220px;width:calc(100% - 220px);padding:28px}.practice-form{grid-template-columns:repeat(2,1fr)}.practice-form .primary-button{grid-column:span 2}.hero-orbit{width:140px;height:140px}.orbit-core{inset:48px}.hero-card{padding:30px}.hero-card h2{font-size:32px}}.billing-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.plan-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px;box-shadow:var(--shadow)}.plan-card h3{font-size:19px;margin:8px 0 16px}.plan-card strong{font-size:28px;letter-spacing:-.06em}.plan-card div{margin:18px 0;min-height:110px}.plan-card p:not(.eyebrow){font-size:12px;color:var(--muted);line-height:1.5}.google-button{margin:10px 0 18px}.auth-panel{background:#fff;border:1px solid var(--line);border-radius:20px;padding:24px;margin-bottom:24px;box-shadow:var(--shadow)}.auth-panel-heading{display:flex;justify-content:space-between;align-items:flex-start}.auth-panel h2{margin:0 0 18px;font-size:22px;letter-spacing:-.05em}.auth-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.auth-grid form{display:grid;gap:10px;border-top:1px solid var(--line);padding-top:18px}.auth-grid h3{margin:0 0 4px}.auth-grid label{font-size:11px;font-weight:800;color:#637087}.auth-grid input{display:block;width:100%;margin-top:6px;padding:11px;border:1px solid #dfe4ec;border-radius:9px}.form-message{font-size:12px;color:var(--muted);min-height:16px}.question-media{display:block;max-width:100%;max-height:420px;object-fit:contain;margin:20px auto;border-radius:12px;border:1px solid var(--line)}.review-list,.topic-list{display:grid;gap:12px}.review-item,.topic-row{background:#fff;border:1px solid var(--line);border-radius:15px;padding:18px}.review-item h3{font-size:15px;line-height:1.5}.review-item p:last-child,.topic-row span{color:var(--muted);font-size:12px}.planner-result{white-space:pre-wrap;background:#fff;border:1px solid var(--line);border-radius:18px;margin-top:18px;padding:24px;color:var(--ink);line-height:1.65;font-size:13px}
@media(max-width:1050px){.billing-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:760px){
.app-shell{display:block}.sidebar{position:static;width:100%;height:auto;padding:16px 18px;display:block}.brand{padding:0 4px 16px}.nav-list{display:flex;overflow-x:auto}.nav-item{white-space:nowrap;padding:10px 12px}.sidebar-bottom{display:none}.main-content{margin:0;width:100%;padding:24px 16px 50px}.topbar{margin-bottom:25px}.topbar-actions{display:none}.welcome-grid{grid-template-columns:1fr}.hero-card{min-height:0;padding:28px 24px}.hero-orbit{display:none}.hero-card h2{font-size:34px}.metric-grid{grid-template-columns:repeat(2,1fr);margin-bottom:35px}.feature-grid{grid-template-columns:1fr}.practice-form{grid-template-columns:1fr}.practice-form .primary-button{grid-column:auto}.page-intro{align-items:flex-start}.large-icon{display:none}.session-card{padding:20px}.session-card h3{font-size:20px}}