:root{--magenta: #e30046;--magenta-dark: #b40a4d;--navy: #003469;--navy-deep: #06264a;--navy-ink: #041c38;--ice: #f2fafe;--line: #dde9ed;--gray: #4d4d4d;--midgray: #8a99a8;--green: #1bb761;--yellow: #f9b425;--yellow-text: #b8830f;--purple: #621e5a;--coral: #f14d51;--radius: 0;--grad-btn: linear-gradient(116.43deg, #e30046 0%, #b40a4d 100%);--grad-brand: linear-gradient(126.62deg, #e30046 0%, #721a57 100%);--shadow: 0 .25rem 1.25rem 0 rgba(0, 0, 0, .14);--mono: "Cascadia Code", Consolas, "JetBrains Mono", monospace}*{box-sizing:border-box}html,body{margin:0;padding:0;font-family:Readex Pro,Segoe UI,Arial,sans-serif;color:var(--gray);background:#fff;font-size:16px;line-height:1.6}#root{min-height:100vh;display:flex;flex-direction:column}::selection{background:var(--magenta);color:#fff}:focus-visible{outline:2px solid var(--magenta);outline-offset:2px}.topbar{background:linear-gradient(105deg,var(--navy-ink) 0%,var(--navy-deep) 60%,var(--navy) 100%);color:#fff;display:flex;align-items:center;gap:16px;padding:10px 22px;position:sticky;top:0;z-index:30}.topbar:after{content:"";position:absolute;left:0;right:0;bottom:-3px;height:3px;background:var(--grad-brand)}.topbar img{height:34px}.topbar>div{min-width:0}.topbar .title{font-weight:700;font-size:1.02rem;letter-spacing:.02em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.topbar .subtitle{font-size:.78rem;color:#9db8d8;margin-top:-2px}.topbar .spacer{flex:1}.topbar .variant-badge{background:var(--grad-btn);color:#fff;font-size:.72rem;font-weight:700;padding:5px 14px;letter-spacing:.1em;text-transform:uppercase;font-family:var(--mono)}.menu-btn{display:none;background:none;border:1px solid rgba(255,255,255,.4);color:#fff;padding:6px 10px;cursor:pointer;font-size:1rem}.layout{display:flex;flex:1;min-height:0}.sidebar{width:300px;flex-shrink:0;background:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1.5px) 0 0 / 22px 22px,linear-gradient(180deg,var(--navy-deep) 0%,var(--navy-ink) 100%);color:#cadcfc;padding:18px 14px 30px;overflow-y:auto;position:sticky;top:57px;height:calc(100vh - 57px);scrollbar-width:thin;scrollbar-color:rgba(255,255,255,.25) transparent}.sidebar::-webkit-scrollbar{width:8px}.sidebar::-webkit-scrollbar-thumb{background:#fff3}.module-label{font-size:.7rem;font-weight:700;letter-spacing:.16em;color:#ff7ba1;margin:6px 8px 2px;font-family:var(--mono)}.module-title{font-weight:700;color:#fff;margin:0 8px 10px;font-size:1.02rem}.progress-wrap{margin:0 8px 16px}.progress-track{background:#ffffff24;height:8px;overflow:hidden}.progress-fill{background:var(--grad-btn);height:100%;transition:width .4s ease;box-shadow:0 0 10px #e3004699}.progress-text{font-size:.72rem;color:#9db8d8;margin-top:5px;font-family:var(--mono)}.lesson-link{display:flex;align-items:center;gap:10px;width:100%;text-align:left;background:none;border:none;padding:9px 10px;cursor:pointer;font-family:inherit;font-size:.86rem;color:#cadcfc;line-height:1.35;transition:background .15s,transform .15s}.lesson-link:hover{background:#ffffff14;transform:translate(2px)}.lesson-link.active{background:#e300462e;color:#fff;font-weight:600;box-shadow:inset 3px 0 0 var(--magenta)}.lesson-link .num{flex-shrink:0;width:24px;height:24px;border-radius:50%;background:transparent;border:1.5px solid rgba(255,255,255,.35);color:#cadcfc;font-size:.7rem;font-weight:700;font-family:var(--mono);display:flex;align-items:center;justify-content:center}.lesson-link.active .num{border-color:var(--magenta);color:#ff7ba1}.lesson-link .num.done{background:var(--green);border-color:var(--green);color:#fff}.main{flex:1;min-width:0;padding:34px clamp(20px,5vw,64px) 80px;max-width:980px;animation:rise .45s ease both}@keyframes rise{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}.crumb{font-size:.74rem;font-weight:700;letter-spacing:.14em;color:var(--magenta);font-family:var(--mono)}h1{color:var(--magenta);font-size:2.35rem;line-height:1.18;letter-spacing:-.01em;margin:6px 0 4px;font-weight:700}h2{color:var(--magenta);font-size:1.4rem;margin:36px 0 8px;font-weight:700}h3{color:var(--navy);font-size:1.05rem;margin:22px 0 6px;font-weight:600}p{margin:0 0 12px}.lesson-meta{color:var(--midgray);font-size:.78rem;margin-bottom:18px;font-family:var(--mono)}strong{color:var(--navy)}a{color:var(--navy);transition:color .2s}a:hover{color:var(--magenta)}code{font-family:var(--mono);font-size:.85em;background:var(--ice);border:1px solid var(--line);padding:1px 6px;border-radius:2px;color:var(--navy)}.objectives{background:var(--ice);border-left:4px solid var(--navy);padding:16px 20px;margin:14px 0 22px}.objectives .obj-title{font-size:.72rem;font-weight:700;letter-spacing:.14em;color:var(--navy);margin-bottom:6px;font-family:var(--mono)}.objectives ul{margin:0;padding-left:20px}.objectives li{margin-bottom:3px;font-size:.92rem}.callout{padding:16px 20px;margin:16px 0;font-size:.95rem;border-left:4px solid transparent}.callout .co-title{font-weight:700;margin-bottom:4px;display:flex;align-items:center;gap:8px}.callout.info{background:var(--ice);border-left-color:var(--navy)}.callout.info .co-title{color:var(--navy)}.callout.tip{background:#eafaf1;border-left-color:var(--green)}.callout.tip .co-title{color:#12824a}.callout.warn{background:#fdf3e0;border-left-color:var(--yellow)}.callout.warn .co-title{color:var(--yellow-text)}.callout.case{background:radial-gradient(rgba(255,255,255,.04) 1px,transparent 1.5px) 0 0 / 20px 20px,linear-gradient(115deg,var(--navy-deep),var(--navy));border-left-color:var(--magenta);color:#cadcfc}.callout.case .co-title,.callout.case strong{color:#fff}.callout.assignment{background:#fdeaf1;border-left-color:var(--magenta)}.callout.assignment .co-title{color:var(--magenta)}.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px;margin:16px 0}.card{background:#fff;border:1px solid var(--line);box-shadow:0 .25rem 1rem #00346912;padding:16px 18px;font-size:.92rem;position:relative;transition:transform .2s ease,box-shadow .2s ease}.card:before{content:"";position:absolute;top:-1px;left:-1px;right:-1px;height:3px;background:var(--grad-brand);transform:scaleX(0);transform-origin:left;transition:transform .25s ease}.card:hover{transform:translateY(-3px);box-shadow:0 .6rem 1.5rem #00346921}.card:hover:before{transform:scaleX(1)}.card .card-title{font-weight:700;color:var(--navy);margin-bottom:5px;display:flex;align-items:center;gap:9px}.dot{width:12px;height:12px;border-radius:50%;flex-shrink:0}.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}table.deftable{width:100%;border-collapse:collapse;margin:14px 0;font-size:.9rem}table.deftable th{background:var(--navy);color:#fff;text-align:left;padding:9px 12px;font-weight:600}table.deftable td{border:1px solid var(--line);padding:8px 12px;vertical-align:top}table.deftable tr:nth-child(2n) td{background:var(--ice)}.accordion{border:1px solid var(--line);overflow:hidden;margin:14px 0}.acc-item+.acc-item{border-top:1px solid var(--line)}.acc-head{width:100%;display:flex;align-items:center;gap:10px;background:#fff;border:none;text-align:left;padding:13px 16px;font-family:inherit;font-size:.95rem;font-weight:600;color:var(--navy);cursor:pointer}.acc-head:hover{background:var(--ice)}.acc-head .chev{margin-left:auto;transition:transform .2s;color:var(--magenta)}.acc-head .chev.open{transform:rotate(90deg)}.acc-body{padding:2px 16px 14px;font-size:.92rem;background:#fff}.quiz{border:1px solid var(--line);box-shadow:var(--shadow);margin:30px 0 10px;overflow:hidden}.quiz-head{background:linear-gradient(105deg,var(--navy-ink),var(--navy));color:#fff;padding:12px 20px;font-weight:700;display:flex;align-items:center;gap:10px;border-left:4px solid var(--magenta)}.quiz-body{padding:18px 20px}.quiz-q{font-weight:600;color:var(--navy);margin-bottom:10px}.quiz-opt{display:block;width:100%;text-align:left;background:var(--ice);border:2px solid transparent;padding:10px 14px;margin-bottom:8px;cursor:pointer;font-family:inherit;font-size:.92rem;color:var(--gray);transition:border-color .15s,transform .15s}.quiz-opt:hover:not(:disabled){border-color:var(--navy);transform:translate(3px)}.quiz-opt:disabled{cursor:default}.quiz-opt.correct{background:#eafaf1;border-color:var(--green);color:#12824a;font-weight:600}.quiz-opt.wrong{background:#fdeaea;border-color:var(--coral)}.quiz-explain{background:var(--ice);border-left:4px solid var(--navy);padding:10px 14px;font-size:.88rem;margin-top:6px}.quiz-nav{display:flex;align-items:center;gap:12px;margin-top:14px}.quiz-count{color:var(--midgray);font-size:.8rem;margin-left:auto;font-family:var(--mono)}.quiz-score{font-weight:700;color:var(--navy);font-size:1.05rem}.btn{display:inline-flex;align-items:center;gap:8px;background:var(--grad-btn);color:#fff;border:none;padding:11px 18px;font-family:inherit;font-size:.875rem;font-weight:700;letter-spacing:.055em;text-transform:uppercase;cursor:pointer;text-decoration:none;transition:transform .15s ease,box-shadow .15s ease}.btn:hover{transform:translateY(-2px);box-shadow:0 6px 16px #e3004659}.btn.secondary{background:transparent;color:var(--navy);border:1px solid rgba(0,52,105,.25)}.btn.secondary:hover{border-color:var(--magenta);color:var(--navy);box-shadow:0 6px 16px #00346926}.btn.ghost{background:none;color:var(--navy);border:none;padding:11px 6px}.btn.ghost:hover{background:none;color:var(--magenta);box-shadow:none;transform:none}.btn:disabled{opacity:.45;cursor:default;transform:none;box-shadow:none}.lesson-nav{display:flex;justify-content:space-between;align-items:center;gap:14px;margin-top:44px;border-top:1px solid var(--line);padding-top:20px;flex-wrap:wrap}.done-toggle{display:inline-flex;align-items:center;gap:9px;background:#fff;border:1px solid var(--green);color:#12824a;padding:10px 18px;font-family:inherit;font-weight:700;font-size:.875rem;letter-spacing:.055em;text-transform:uppercase;cursor:pointer;transition:background .2s}.done-toggle.done{background:var(--green);color:#fff}.matrix-wrap{display:flex;gap:26px;flex-wrap:wrap;align-items:flex-start;margin:18px 0}.matrix-grid{display:grid;grid-template-columns:repeat(5,52px);gap:4px}.matrix-cell{height:52px;border:none;color:#fff;font-weight:700;font-family:var(--mono);font-size:.9rem;cursor:pointer;transition:transform .1s}.matrix-cell:hover{transform:scale(1.08)}.matrix-cell.selected{outline:3px solid var(--navy);outline-offset:1px}.matrix-axis{font-size:.78rem;font-weight:600;color:var(--navy);text-align:center;margin-top:6px}.matrix-panel{flex:1;min-width:240px;background:var(--ice);border-left:4px solid var(--navy);padding:16px 18px;font-size:.92rem}.stride-letters{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0}.stride-letter{width:52px;height:52px;border-radius:50%;border:none;color:#fff;font-family:var(--mono);font-size:1.3rem;font-weight:700;cursor:pointer;transition:transform .1s}.stride-letter:hover{transform:scale(1.1)}.stride-letter.selected{outline:3px solid var(--navy);outline-offset:2px}.stride-panel{background:var(--ice);border-left:4px solid var(--navy);padding:16px 20px;font-size:.93rem}.timeline{border-left:3px solid var(--magenta);margin:16px 0 16px 8px;padding-left:22px}.tl-item{position:relative;padding-bottom:16px}.tl-item:before{content:"";position:absolute;left:-29.5px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--magenta);box-shadow:0 0 0 3px #e3004633}.tl-when{font-weight:700;color:var(--navy);font-size:.9rem}.tl-what{font-size:.92rem}.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin:16px 0}.stat{background:var(--ice);border-bottom:3px solid var(--magenta);padding:14px 16px}.stat .v{font-size:1.7rem;font-weight:700;font-family:var(--mono);letter-spacing:-.02em}.stat .l{font-size:.8rem;color:var(--gray);line-height:1.4}.pyramid{display:flex;flex-direction:column;align-items:center;gap:8px;margin:18px 0}.pyr-level{color:#fff;text-align:center;padding:12px 18px}.pyr-level .pt{font-weight:700;letter-spacing:.08em;font-size:.95rem}.pyr-level .pd{font-size:.82rem;opacity:.92}.pyr-level .pe{font-size:.78rem;font-style:italic;opacity:.85}.dfd-svg{width:100%;height:auto;margin:10px 0}.download-row{display:flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--line);box-shadow:0 .25rem 1rem #00346912;padding:14px 18px;margin:10px 0;transition:transform .2s ease,box-shadow .2s ease}.download-row:hover{transform:translateY(-2px);box-shadow:0 .5rem 1.4rem #0034691f}.download-row .d-icon{width:42px;height:42px;border-radius:50%;background:var(--grad-btn);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;flex-shrink:0;font-size:.68rem;font-family:var(--mono)}.download-row .d-body{flex:1;min-width:0}.download-row .d-title{font-weight:700;color:var(--navy);font-size:.95rem}.download-row .d-sub{font-size:.82rem;color:var(--midgray)}.chip-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px}.chip{min-width:46px;border:1px solid rgba(0,52,105,.25);background:#fff;padding:6px 12px;font-family:var(--mono);font-size:.82rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--navy);cursor:pointer;transition:border-color .15s}.chip:hover{border-color:var(--magenta)}.chip.active{background:var(--navy);border-color:var(--navy);color:#fff}.score-badge{color:#fff;font-weight:700;padding:4px 12px;font-size:.9rem;font-family:var(--mono)}.fn-badge{display:inline-block;color:#fff;font-weight:700;font-size:.78rem;letter-spacing:.08em;padding:3px 10px;font-family:var(--mono)}table.mini-table{width:100%;border-collapse:collapse;margin:10px 0 0;font-size:.88rem}table.mini-table th{text-align:left;width:38%;padding:5px 8px 5px 0;color:var(--navy);font-weight:600;vertical-align:top}table.mini-table td{padding:5px 0;vertical-align:top}.slider-row{display:flex;gap:22px;flex-wrap:wrap;margin-bottom:10px}.slider-row label{font-size:.88rem;display:flex;flex-direction:column;gap:6px;color:var(--navy);font-weight:600}.slider-row input[type=range]{width:220px;accent-color:var(--magenta)}.slider-row select{font-family:inherit;font-size:.88rem;padding:6px 8px;border:1px solid rgba(0,52,105,.25);border-radius:0;color:var(--gray);background:#fff}.check-row{display:flex;gap:10px;align-items:flex-start;font-size:.9rem;padding:5px 0;cursor:pointer}.check-row input{margin-top:3px;accent-color:var(--green)}.cia-wrap{display:flex;gap:22px;flex-wrap:wrap;align-items:flex-start;margin:4px 0}.cia-svg{width:300px;max-width:100%;height:auto;flex-shrink:0}.cia-panel{flex:1;min-width:240px;background:var(--ice);border-left:4px solid var(--navy);padding:16px 18px;font-size:.92rem}.pdf-embed{border:1px solid var(--line);overflow:hidden;margin:14px 0}.pdf-embed-bar{display:flex;align-items:center;gap:12px;background:linear-gradient(105deg,var(--navy-ink),var(--navy));color:#fff;padding:9px 16px;font-size:.85rem;font-weight:600}.pdf-embed-bar a{color:#fff;text-decoration:underline;margin-left:auto;font-weight:600}.pdf-embed-bar a:hover{color:#ff7ba1}.pdf-embed-pages{background:var(--ice);padding:12px;display:flex;flex-direction:column;gap:12px}.pdf-embed-pages img{display:block;width:100%;height:auto;border:1px solid var(--line);background:#fff}.pdf-embed-more{width:100%;background:#fff;border:none;border-top:1px solid var(--line);padding:10px;font-family:inherit;font-size:.8rem;font-weight:700;letter-spacing:.055em;text-transform:uppercase;color:var(--magenta);cursor:pointer}.pdf-embed-more:hover{background:var(--ice)}.contact-card{display:flex;gap:18px;align-items:flex-start;background:#fff;border:1px solid var(--line);box-shadow:0 .25rem 1rem #00346912;padding:20px 22px;margin:16px 0;position:relative}.contact-card:before{content:"";position:absolute;top:-1px;left:-1px;right:-1px;height:3px;background:var(--grad-brand)}.contact-avatar{width:64px;height:64px;border-radius:50%;object-fit:cover;border:2px solid var(--magenta);flex-shrink:0}.contact-body{min-width:0}.contact-name{font-weight:700;color:var(--navy);font-size:1.05rem}.contact-role{font-size:.78rem;color:var(--midgray);font-family:var(--mono);margin-bottom:8px}.contact-body p{font-size:.92rem;margin-bottom:0}.contact-links{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}.contact-links .btn{font-size:.78rem}.footer{background:var(--grad-brand);color:#fff;font-size:.78rem;padding:18px 22px;display:flex;gap:12px;align-items:center}.footer a{color:#fff;font-weight:600}.footer a:hover{color:#ffd6e2}.hero{background:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1.5px) 0 0 / 24px 24px,radial-gradient(700px 420px at 88% -10%,rgba(227,0,70,.55),transparent 65%),radial-gradient(520px 380px at -10% 115%,rgba(98,30,90,.65),transparent 60%),linear-gradient(118deg,var(--navy-ink) 0%,var(--navy-deep) 55%,var(--navy) 100%);background-size:24px 24px,180% 180%,180% 180%,100% 100%;animation:aurora 14s ease-in-out infinite alternate;color:#cadcfc;padding:46px 42px;position:relative;overflow:hidden;margin-bottom:26px;clip-path:polygon(0 0,100% 0,100% 100%,0 calc(100% - 26px))}@keyframes aurora{0%{background-position:0 0,0% 0%,100% 100%,0 0}to{background-position:0 0,60% 40%,40% 60%,0 0}}.hero:before,.hero:after{content:"";position:absolute;border-radius:50%;border:2px dashed rgba(255,255,255,.22);pointer-events:none}.hero:before{right:-90px;top:-110px;width:300px;height:300px;animation:spin 60s linear infinite}.hero:after{right:-20px;top:-40px;width:160px;height:160px;border-color:#ff7ba173;animation:spin 40s linear infinite reverse}@keyframes spin{to{transform:rotate(360deg)}}.hero h1{color:#fff;font-size:2.7rem;margin:6px 0 10px;position:relative;z-index:1}.hero .kicker{color:#ff7ba1;font-weight:700;letter-spacing:.2em;font-size:.74rem;position:relative;z-index:1;font-family:var(--mono)}.hero p{position:relative;z-index:1;max-width:640px}.hero .btn{position:relative;z-index:1}.hero .btn.secondary{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.55)}.hero .btn.secondary:hover{border-color:#fff;color:#fff;box-shadow:0 6px 16px #0000004d}@media (prefers-reduced-motion: reduce){.hero,.hero:before,.hero:after{animation:none}.main{animation:none}*{transition-duration:.01ms!important}}@media (max-width: 700px){.topbar .variant-badge,.topbar .subtitle{display:none}.topbar{padding:10px 14px;gap:10px}.table-scroll table{min-width:560px}.main{padding-left:16px;padding-right:16px}.hero{padding:30px 24px}.hero h1{font-size:2.1rem}h1{font-size:1.9rem}}@media (max-width: 900px){.sidebar{position:fixed;left:0;top:57px;z-index:25;transform:translate(-105%);transition:transform .25s ease;box-shadow:4px 0 22px #00000059}.sidebar.open{transform:translate(0)}.menu-btn{display:block}}