@tailwind base;@tailwind components;@tailwind utilities;@import url("https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,400&display=swap");:root{--font-primary:"Plus Jakarta Sans",-apple-system,BlinkMacSystemFont,sans-serif;--navy:#102a67;--navy-deep:#0a1d47;--navy-mid:#1a3a7c;--blue:#2563eb;--blue-dim:rgba(37,99,235,.1);--blue-border:rgba(37,99,235,.18);--blue-light:#eff6ff;--blue-accent:#6096ff;--text-primary:#0f172a;--text-secondary:#374151;--text-muted:#64748b;--text-faint:#94a3b8;--bg-page:#f0f4f8;--bg-white:#fff;--bg-subtle:#f8fafc;--bg-sidebar:#0d1f4e;--bg-sidebar-mid:#1e293b;--border:#e2e8f0;--border-strong:#cbd5e1;--green:#16a34a;--green-bg:rgba(22,163,74,.08);--green-border:rgba(22,163,74,.2);--red:#dc2626;--red-bg:rgba(220,38,38,.08);--red-border:rgba(220,38,38,.2);--amber:#d97706;--amber-bg:rgba(217,119,6,.08);--amber-border:rgba(217,119,6,.22);--sidebar-w:272px;--topbar-h:58px;--content-w:760px;--r-sm:6px;--r-md:10px;--r-lg:14px;--r-xl:20px;--shadow-sm:0 1px 3px rgba(0,0,0,.07),0 1px 2px rgba(0,0,0,.04);--shadow-md:0 4px 16px rgba(0,0,0,.08),0 1px 4px rgba(0,0,0,.04);--shadow-card:0 2px 12px rgba(16,42,103,.07),0 0 0 1px rgba(37,99,235,.06);--shadow-nav:0 1px 0 rgba(0,0,0,.06),0 2px 8px rgba(0,0,0,.04)}*,:after,:before{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font-primary);background:var(--bg-page);color:var(--text-primary);line-height:1.7;font-size:15px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.state-loading{color:var(--text-faint)}.state-error,.state-loading{padding:80px 40px;font-size:14px;font-weight:500;text-align:center}.state-error{color:var(--red)}.skeleton{background:linear-gradient(90deg,var(--border) 25%,var(--bg-subtle) 50%,var(--border) 75%);background-size:200% 100%;animation:skeleton-shimmer 1.5s infinite;border-radius:var(--r-sm)}@keyframes skeleton-shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.academy-shell{display:flex;min-height:100vh}.academy-sidebar{width:var(--sidebar-w);background:var(--bg-sidebar);position:fixed;top:0;left:0;bottom:0;overflow-y:auto;z-index:100;display:flex;flex-direction:column;border-right:1px solid hsla(0,0%,100%,.05)}.academy-sidebar::-webkit-scrollbar{width:3px}.academy-sidebar::-webkit-scrollbar-thumb{background:rgba(37,99,235,.5);border-radius:2px}.sidebar-brand{padding:22px 20px 18px;border-bottom:1px solid hsla(0,0%,100%,.06);flex-shrink:0}.sidebar-logo{display:flex;align-items:center;gap:10px;text-decoration:none}.sidebar-logo img{height:34px;width:auto;object-fit:contain;display:block}.sidebar-logo-mark{width:30px;height:30px;border-radius:8px;background:var(--blue);display:flex;align-items:center;justify-content:center;flex-shrink:0}.sidebar-logo-mark,.sidebar-logo-name{font-weight:800;font-size:13px;color:#fff}.sidebar-logo-name{letter-spacing:-.01em}.sidebar-logo-sub{font-size:10px;color:hsla(0,0%,100%,.3);font-weight:500;margin-top:1px}.sidebar-module{padding:16px 20px 12px;border-bottom:1px solid hsla(0,0%,100%,.06);flex-shrink:0}.sidebar-module-label{font-size:9px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--blue-accent);margin-bottom:5px}.sidebar-module-title{font-size:12px;font-weight:600;color:hsla(0,0%,100%,.8);line-height:1.45}.sidebar-progress{padding:12px 20px 14px;border-bottom:1px solid hsla(0,0%,100%,.06);flex-shrink:0}.sidebar-progress-header{display:flex;justify-content:space-between;font-size:10px;color:hsla(0,0%,100%,.3);margin-bottom:7px;font-weight:500}.sidebar-progress-track{height:3px;background:hsla(0,0%,100%,.07);border-radius:2px;overflow:hidden}.sidebar-progress-fill{height:100%;background:linear-gradient(90deg,var(--blue),var(--blue-accent));border-radius:2px;transition:width .4s ease}.sidebar-chapter-list{padding:6px 0 20px;flex:1 1}.sidebar-chapter-item{display:flex;align-items:flex-start;gap:10px;padding:8px 20px;cursor:pointer;transition:background .15s;border-left:2px solid transparent;text-decoration:none}.sidebar-chapter-item:hover{background:hsla(0,0%,100%,.04)}.sidebar-chapter-item.active{background:rgba(37,99,235,.14);border-left-color:var(--blue)}.sidebar-chapter-item.done{opacity:.55}.sidebar-ch-num{width:20px;height:20px;border-radius:50%;background:hsla(0,0%,100%,.07);display:flex;align-items:center;justify-content:center;font-size:9px;font-weight:700;color:hsla(0,0%,100%,.3);flex-shrink:0;margin-top:2px;transition:all .15s}.sidebar-chapter-item.active .sidebar-ch-num{background:var(--blue);color:#fff}.sidebar-chapter-item.done .sidebar-ch-num{background:rgba(22,163,74,.25);color:#4ade80}.sidebar-ch-title{font-size:11.5px;font-weight:500;color:hsla(0,0%,100%,.38);line-height:1.45}.sidebar-chapter-item.active .sidebar-ch-title{color:#fff;font-weight:600}.academy-main{margin-left:var(--sidebar-w);flex:1 1;min-height:100vh;background:var(--bg-page)}.academy-topbar{background:var(--bg-white);border-bottom:1px solid var(--border);padding:0 48px;height:var(--topbar-h);display:flex;align-items:center;justify-content:space-between;position:-webkit-sticky;position:sticky;top:0;z-index:50;box-shadow:var(--shadow-nav)}.topbar-breadcrumb{font-size:12px;color:var(--text-muted);display:flex;align-items:center;gap:6px;font-weight:500;min-width:0}.topbar-breadcrumb-current{color:var(--text-primary);font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:320px}.topbar-breadcrumb-sep{color:var(--border-strong)}.topbar-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}.topbar-reading-time{font-size:11px;color:var(--text-muted);background:var(--bg-subtle);padding:4px 11px;border-radius:20px;border:1px solid var(--border);font-weight:500}.navbar{background:var(--bg-sidebar);padding:0 40px;height:62px;justify-content:space-between;border-bottom:1px solid hsla(0,0%,100%,.05);position:-webkit-sticky;position:sticky;top:0;z-index:100;box-shadow:0 2px 16px rgba(0,0,0,.15)}.navbar,.navbar-brand{display:flex;align-items:center}.navbar-brand{gap:10px;text-decoration:none}.navbar-brand img{height:28px;width:auto;object-fit:contain;opacity:.9}.navbar-brand-mark{width:30px;height:30px;border-radius:8px;background:var(--blue);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:13px;color:#fff;flex-shrink:0}.navbar-brand-name{font-size:14px;font-weight:800;color:#fff;letter-spacing:-.02em}.navbar-brand-accent{color:var(--blue-accent)}.navbar-links{gap:28px}.navbar-link,.navbar-links{display:flex;align-items:center}.navbar-link{color:hsla(0,0%,100%,.5);text-decoration:none;font-size:13px;font-weight:600;gap:6px;transition:color .15s;letter-spacing:-.01em}.navbar-link:hover{color:#fff}.navbar-lang-switch{display:flex!important;align-items:center;gap:6px;background:#fff!important;border-radius:8px;padding:5px!important;margin-right:8px}.navbar-lang-item{display:inline-block!important;color:#0d1f4e!important;text-decoration:none!important;font-size:14px!important;font-weight:800!important;letter-spacing:.02em;padding:7px 14px!important;border-radius:6px;min-width:34px;text-align:center;transition:all .15s;white-space:nowrap}.navbar-lang-item:hover{background:rgba(13,31,78,.08)}.navbar-lang-item.active{color:#fff!important;background:#2563eb!important}@media (max-width:960px){.academy-sidebar{transform:translateX(-100%)}.academy-main{margin-left:0}.academy-topbar,.navbar{padding:0 20px}}.btn-primary{background:var(--blue);color:#fff;border:none;padding:8px 18px;border-radius:var(--r-sm);font-family:var(--font-primary);font-size:12.5px;font-weight:700;cursor:pointer;transition:all .15s;text-decoration:none;display:inline-flex;align-items:center;gap:6px;letter-spacing:-.01em;white-space:nowrap}.btn-primary:hover{background:var(--navy-mid);transform:translateY(-1px);box-shadow:0 4px 14px rgba(37,99,235,.35)}.btn-outline{background:transparent;color:var(--navy);border:1.5px solid var(--navy);padding:8px 18px;border-radius:var(--r-sm);font-family:var(--font-primary);font-size:12.5px;font-weight:700;cursor:pointer;transition:all .15s;text-decoration:none;display:inline-flex;align-items:center;gap:6px;white-space:nowrap}.btn-outline:hover{background:var(--blue-dim);border-color:var(--blue);color:var(--blue)}.chapter-content{width:100%;padding:44px 56px 100px}.chapter-header,.chapter-tag{margin-bottom:16px}.chapter-tag{display:inline-flex;align-items:center;gap:7px;background:var(--blue-dim);color:var(--blue);padding:5px 13px;border-radius:20px;font-size:11px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;border:1px solid var(--blue-border)}.chapter-tag-dot{width:5px;height:5px;border-radius:50%;background:var(--blue);flex-shrink:0}.chapter-h1{font-size:30px;font-weight:800;color:var(--text-primary);line-height:1.2;letter-spacing:-.025em;margin-bottom:10px}.chapter-subtitle{font-size:15px;color:var(--text-muted);line-height:1.65;font-weight:400;max-width:580px}.chapter-divider{height:1px;background:var(--border);margin:16px 0 20px}.section{margin-bottom:40px}.section-num{font-size:13px;font-weight:800;color:var(--blue);letter-spacing:.04em;margin-bottom:6px;font-family:var(--font-primary)}.section-h2{font-size:19px;font-weight:800;color:var(--text-primary);line-height:1.3;margin-bottom:14px;letter-spacing:-.015em}.prose{font-size:15px;color:var(--text-secondary);line-height:1.85;margin-bottom:16px}.prose:last-child{margin-bottom:0}.prose strong{color:var(--text-primary);font-weight:700}.prose em{font-style:italic;color:var(--text-muted)}.hbox{border-radius:var(--r-md);padding:18px 20px 18px 22px;margin:24px 0;border-left:3px solid;position:relative}.hbox-blue{background:var(--blue-light);border-color:var(--blue)}.hbox-navy{background:rgba(16,42,103,.06);border-color:var(--navy)}.hbox-green{background:var(--green-bg);border-color:var(--green);border:1px solid var(--green-border);border-left:3px solid var(--green)}.hbox-amber{background:var(--amber-bg);border-color:var(--amber);border:1px solid var(--amber-border);border-left:3px solid var(--amber)}.hbox-red{background:var(--red-bg);border-color:var(--red);border:1px solid var(--red-border);border-left:3px solid var(--red)}.hbox-title{font-size:12.5px;font-weight:800;letter-spacing:-.01em;margin-bottom:9px;text-transform:uppercase;letter-spacing:.04em;font-size:11px}.hbox-blue .hbox-title,.hbox-navy .hbox-title{color:var(--navy)}.hbox-green .hbox-title{color:var(--green)}.hbox-amber .hbox-title{color:var(--amber)}.hbox-red .hbox-title{color:var(--red)}.hbox-body{font-size:13.5px;line-height:1.75;color:var(--text-secondary)}.hbox-body ul{padding-left:16px}.hbox-body li{margin-bottom:5px}.hbox-body li:last-child{margin-bottom:0}.hbox-blue .hbox-body li::marker{color:var(--blue)}.hbox-navy .hbox-body li::marker{color:var(--navy)}.hbox-green .hbox-body li::marker{color:var(--green)}.hbox-amber .hbox-body li::marker{color:var(--amber)}.hbox-red .hbox-body li::marker{color:var(--red)}.table-title{font-size:12px;font-weight:700;color:var(--text-primary);margin-bottom:10px;letter-spacing:-.01em;text-transform:uppercase;letter-spacing:.04em;font-size:10.5px;color:var(--text-muted)}.table-wrap{border:1px solid var(--border);border-radius:var(--r-md);overflow:hidden;margin:8px 0 28px;box-shadow:var(--shadow-sm)}.academy-table{width:100%;border-collapse:collapse;font-size:13.5px}.academy-table thead tr{background:var(--bg-sidebar)}.academy-table thead th{padding:11px 16px;text-align:left;font-size:10.5px;font-weight:700;color:hsla(0,0%,100%,.6);letter-spacing:.06em;text-transform:uppercase;white-space:nowrap}.academy-table tbody tr{border-top:1px solid var(--border);transition:background .12s}.academy-table tbody tr:first-child{border-top:none}.academy-table tbody tr:hover{background:var(--bg-subtle)}.academy-table tbody td{padding:11px 16px;color:var(--text-secondary);font-size:13.5px;vertical-align:middle}.academy-table tbody td:first-child{font-weight:600;color:var(--text-primary)}.cell-loss{color:var(--red)!important;font-weight:600}.cell-gain{color:var(--green)!important;font-weight:600}.chart-wrap{background:var(--bg-white);border:1px solid var(--border);border-radius:var(--r-md);padding:20px 20px 16px;margin:24px 0;box-shadow:var(--shadow-sm)}.chart-title{font-size:12px;font-weight:700;color:var(--text-primary);margin-bottom:16px;letter-spacing:-.01em;display:flex;align-items:center;gap:8px}.chart-title:before{content:"";display:inline-block;width:3px;height:14px;background:var(--blue);border-radius:2px;flex-shrink:0}.chart-container{position:relative;height:240px}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));grid-gap:12px;gap:12px;margin:24px 0}.stat-card{background:var(--bg-white);border:1px solid var(--border);border-radius:var(--r-md);padding:16px 18px;box-shadow:var(--shadow-sm);position:relative;overflow:hidden}.stat-card:before{content:"";position:absolute;top:0;left:0;right:0;height:3px}.stat-card-blue:before{background:var(--blue)}.stat-card-navy:before{background:var(--navy)}.stat-card-green:before{background:var(--green)}.stat-card-amber:before{background:var(--amber)}.stat-card-red:before{background:var(--red)}.stat-label{font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.07em;color:var(--text-faint);margin-bottom:6px}.stat-value{font-size:24px;font-weight:800;color:var(--text-primary);letter-spacing:-.03em;line-height:1.1;margin-bottom:4px}.stat-sub{font-size:11.5px;color:var(--text-muted);font-weight:500;line-height:1.4}.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));grid-gap:12px;gap:12px;margin:24px 0}.concept-card{background:var(--bg-white);border:1px solid var(--border);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--shadow-sm);transition:box-shadow .15s,transform .15s}.concept-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}.card-header{padding:11px 15px;font-size:14px;font-weight:800;letter-spacing:-.01em;color:#fff}.card-header-navy{background:var(--navy)}.card-header-blue{background:var(--blue)}.card-header-green{background:var(--green)}.card-header-amber{background:var(--amber)}.card-header-red{background:var(--red)}.card-body{padding:12px 15px 14px}.card-body ul{padding-left:14px;margin:0}.card-body li{font-size:13.5px;color:var(--text-secondary);line-height:1.65;margin-bottom:5px}.card-body li:last-child{margin-bottom:0}.card-body li::marker{color:var(--blue)}.takeaways{background:var(--bg-sidebar);border-radius:var(--r-lg);padding:24px 24px 20px;margin:36px 0 32px;position:relative;overflow:hidden}.takeaways:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--blue),var(--blue-accent))}.takeaways-title{font-size:11px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--blue-accent);margin-bottom:16px}.takeaway-item{display:flex;align-items:flex-start;gap:13px;margin-bottom:12px}.takeaway-item:last-child{margin-bottom:0}.takeaway-num{width:22px;height:22px;border-radius:50%;background:rgba(37,99,235,.2);border:1px solid rgba(37,99,235,.3);display:flex;align-items:center;justify-content:center;font-size:10px;font-weight:800;color:var(--blue-accent);flex-shrink:0;margin-top:1px}.takeaway-text{font-size:13.5px;color:hsla(0,0%,100%,.72);line-height:1.65;font-weight:500}.takeaway-text strong{color:#fff;font-weight:700}.quiz-entry-card{background:var(--bg-white);border:1px solid var(--border);border-radius:var(--r-lg);padding:32px 28px;text-align:center;box-shadow:var(--shadow-card);margin-top:40px}.quiz-entry-icon{width:56px;height:56px;background:rgba(251,191,36,.1);border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 16px;border:1px solid rgba(251,191,36,.25)}.quiz-entry-h3{font-size:18px;font-weight:800;color:var(--text-primary);margin-bottom:7px;letter-spacing:-.02em}.quiz-entry-sub{font-size:13.5px;color:var(--text-muted);margin-bottom:22px;line-height:1.55}.quiz-section{background:var(--bg-white);border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-card);margin-top:40px}.quiz-header{background:var(--bg-sidebar);padding:14px 22px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid hsla(0,0%,100%,.06)}.quiz-header-title{font-size:12px;font-weight:800;color:#fff;letter-spacing:-.01em;text-transform:uppercase;letter-spacing:.05em;font-size:11px}.quiz-badge{font-size:10px;font-weight:700;color:var(--blue-accent);letter-spacing:.08em;text-transform:uppercase;background:rgba(37,99,235,.15);padding:4px 10px;border-radius:20px;border:1px solid rgba(37,99,235,.2)}.quiz-body{padding:22px 22px 18px}.quiz-question{font-size:15px;font-weight:700;color:var(--text-primary);line-height:1.5;margin-bottom:18px;letter-spacing:-.01em}.quiz-options{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}.quiz-option{display:flex;align-items:center;gap:12px;padding:12px 16px;border:1.5px solid var(--border);border-radius:var(--r-sm);background:var(--bg-subtle);cursor:pointer;transition:all .15s;font-family:var(--font-primary);font-size:13.5px;font-weight:500;color:var(--text-secondary);text-align:left;width:100%}.quiz-option:hover:not(:disabled){border-color:var(--blue);background:var(--blue-light);color:var(--text-primary)}.quiz-option.correct{border-color:var(--green);background:var(--green-bg);color:var(--green);font-weight:600}.quiz-option.wrong{border-color:var(--red);background:var(--red-bg);color:var(--red)}.quiz-option.dimmed{opacity:.38;cursor:default}.quiz-option:disabled{cursor:default}.quiz-opt-letter{width:24px;height:24px;border-radius:50%;background:rgba(37,99,235,.1);border:1px solid var(--blue-border);display:flex;align-items:center;justify-content:center;font-size:10px;font-weight:800;color:var(--blue);flex-shrink:0;text-transform:uppercase}.quiz-option.correct .quiz-opt-letter{background:var(--green);border-color:var(--green);color:#fff}.quiz-option.wrong .quiz-opt-letter{background:var(--red);border-color:var(--red);color:#fff}.quiz-lock-notice{display:flex;align-items:center;gap:7px;background:var(--amber-bg);border:1px solid var(--amber-border);border-radius:var(--r-sm);padding:9px 13px;margin-top:14px}.quiz-lock-text{font-size:12px;color:var(--amber);font-weight:500}.quiz-lock-text a{color:var(--amber);font-weight:700;text-decoration:underline}.quiz-nav{padding:14px 22px;border-top:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;background:var(--bg-subtle)}.quiz-progress-text{font-size:12px;color:var(--text-muted);font-weight:600}.result-score-display{text-align:center;padding:20px 0 28px;border-bottom:1px solid var(--border);margin-bottom:20px}.result-score-pct{font-size:52px;font-weight:800;letter-spacing:-.04em;line-height:1;margin-bottom:6px}.result-score-pct-pass{color:var(--green)}.result-score-pct-fail{color:var(--red)}.result-score-label{font-size:15px;font-weight:700;margin-bottom:4px}.result-score-label-pass{color:var(--green)}.result-score-label-fail{color:var(--red)}.result-score-meta{font-size:12.5px;color:var(--text-muted);font-weight:500}.result-item{border:1px solid var(--border);border-radius:var(--r-sm);padding:13px 15px;margin-bottom:8px}.result-item-pass{border-color:var(--green-border);background:var(--green-bg)}.result-item-fail{border-color:var(--red-border);background:var(--red-bg)}.result-item-header{display:flex;align-items:flex-start;gap:10px}.result-item-label{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);margin-bottom:2px}.result-item-answer{font-size:13px;font-weight:600;color:var(--text-primary);margin-bottom:4px}.result-item-explanation{font-size:12.5px;color:var(--text-muted);line-height:1.55;margin-top:4px}.result-btn-row{gap:10px;margin-top:20px;padding-top:18px}.chapter-nav-bar,.result-btn-row{display:flex;border-top:1px solid var(--border)}.chapter-nav-bar{justify-content:space-between;gap:12px;margin-top:48px;padding-top:28px}.chapter-nav-btn{display:flex;align-items:center;gap:14px;background:var(--bg-white);border:1px solid var(--border);border-radius:var(--r-md);padding:14px 18px;text-decoration:none;color:var(--text-primary);font-size:13px;transition:all .15s;flex:1 1;max-width:48%;box-shadow:var(--shadow-sm)}.chapter-nav-btn:hover{border-color:var(--blue);box-shadow:var(--shadow-md);transform:translateY(-1px)}.chapter-nav-arrow{font-size:18px;color:var(--blue);flex-shrink:0}.chapter-nav-btn-label{font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.07em;color:var(--text-faint);margin-bottom:3px}.chapter-nav-btn-title{font-size:13px;font-weight:700;color:var(--text-primary);letter-spacing:-.01em;line-height:1.35}.auth-prompt{max-width:480px;margin:80px auto;padding:0 24px;text-align:center}.auth-prompt-icon{margin:0 auto 20px;width:52px;height:52px;background:var(--blue-dim);border-radius:50%;display:flex;align-items:center;justify-content:center;border:1px solid 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