@import"https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&family=Source+Code+Pro:wght@500;600;700&display=swap";:root{font-family:Manrope,system-ui,sans-serif;color:#162033;background:#f4f7fb;font-synthesis:none;--ink: #162033;--navy: #073b78;--navy-deep: #052b5e;--word: #2567d9;--powerpoint: #d84b2a;--green: #1a9b55;--yellow: #ffbf3f;--line: #d8e0ea;--muted: #687386;--panel: #ffffff;--soft: #f7f9fc;--paper: #fffdf8}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-width:320px;min-height:100vh}button,input,select{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.48}a{color:inherit;text-decoration:none}.app-shell{min-height:100vh;background:linear-gradient(180deg,#f7faff 0,#eef3f8 420px,#f6f7f9),#f6f7f9}.topbar{min-height:68px;padding:0 24px;display:grid;grid-template-columns:330px 1fr 230px;align-items:center;background:linear-gradient(110deg,#06275a,#0a4d8c);color:#fff;position:sticky;top:0;z-index:30;box-shadow:0 2px 14px #092c5f3a}.brand{border:0;background:transparent;color:#fff;display:flex;align-items:center;gap:13px;text-align:left;padding:0}.academy-mark{width:42px;height:42px;border-radius:8px;display:grid;place-items:center;background:linear-gradient(135deg,#2b73dc,#e35a35);font-weight:800;box-shadow:inset 0 -10px 18px #082b602e}.brand strong{display:block;font-size:17px}.brand small{display:block;margin-top:2px;font-size:11px;color:#c9dcf5}.mode-nav{align-self:stretch;justify-self:center;display:flex;gap:28px}.mode-nav button{min-width:92px;border:0;background:transparent;color:#dbe9fb;display:flex;align-items:center;justify-content:center;gap:7px;position:relative;font-weight:700}.mode-nav button:after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:3px;border-radius:3px 3px 0 0;background:#f6c24b;transform:scaleX(0);transition:transform .18s ease}.mode-nav button.active,.mode-nav button:hover{color:#fff}.mode-nav button.active:after{transform:scaleX(1)}.student-box{justify-self:end;display:flex;align-items:center;gap:12px;color:#edf5ff;font-weight:700}.avatar{width:40px;height:40px;display:grid;place-items:center;border-radius:50%;background:#c4d2ff;color:#263e78}.progress-strip{min-height:78px;display:grid;grid-template-columns:280px 1fr 230px;align-items:center;gap:22px;padding:13px 24px;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 2px 8px #21344f0a;position:sticky;top:68px;z-index:20}.overall-progress{display:grid;grid-template-columns:1fr auto;gap:6px 12px;align-items:center;color:#284463}.overall-progress span{font-size:12px;color:var(--muted);font-weight:700}.overall-progress strong{color:var(--green);font-size:21px}.overall-progress div,.track-switch i,.coach-progress div{grid-column:1 / -1;height:7px;border-radius:99px;background:#e7edf4;overflow:hidden}.overall-progress i,.track-switch em,.coach-progress i{display:block;height:100%;border-radius:inherit;background:var(--green);transition:width .28s ease}.track-switch{display:grid;grid-template-columns:1fr 1fr;gap:12px}.track-switch button{min-width:0;border:1px solid var(--line);border-radius:8px;background:#fbfdff;padding:10px 13px;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:10px;color:#31425a;text-align:left}.track-switch button.active{border-color:var(--track);box-shadow:0 0 0 3px color-mix(in srgb,var(--track) 14%,transparent)}.track-switch button>span{width:29px;height:29px;border-radius:6px;display:grid;place-items:center;background:var(--track);color:#fff;font-weight:800}.track-switch b{font-size:13px}.track-switch small{color:var(--muted);font-weight:800}.track-switch em{background:var(--track)}.weekly-goal{justify-self:end;width:100%;display:grid;grid-template-columns:auto 1fr;gap:2px 10px;padding:10px 12px;border:1px solid #cfdef1;border-radius:8px;color:#244968}.weekly-goal svg{grid-row:1 / 3;color:var(--word)}.weekly-goal span{font-size:11px;color:var(--muted)}.weekly-goal strong{font-size:13px}.app-grid{max-width:1680px;margin:0 auto;display:grid;grid-template-columns:318px minmax(0,1fr) 338px;align-items:start}.sidebar{min-height:calc(100vh - 146px);height:calc(100vh - 146px);position:sticky;top:146px;overflow:auto;background:#fbfcfe;border-right:1px solid var(--line);padding:18px 16px 26px}.sidebar-title{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;margin-bottom:12px}.sidebar-title span{color:#2b3b51;font-size:13px;text-transform:uppercase;font-weight:800}.sidebar-title small{color:var(--muted);font-size:12px}.lesson-group{border-top:1px solid var(--line);padding-top:14px;margin-top:14px}.group-title{display:flex;justify-content:space-between;color:#1d4775;margin-bottom:8px}.group-title strong{font-size:13px}.group-title span{color:var(--muted);font-size:12px;font-weight:700}.lesson-list{display:grid;gap:8px}.lesson-list button{border:1px solid #dbe3ed;border-radius:8px;background:#fff;display:grid;grid-template-columns:32px 1fr;gap:9px;align-items:center;padding:10px;text-align:left;color:#435066}.lesson-list button:hover{border-color:#b8c9de;background:#f8fbff}.lesson-list button.active{border-color:var(--word);background:#edf5ff;color:#0c58b0;box-shadow:inset 4px 0 #1f6bd7}.lesson-list button>span{width:28px;height:28px;display:grid;place-items:center;border-radius:50%;border:1px solid #b8c5d5;color:#50617a;font:700 11px Source Code Pro,monospace}.lesson-list button>span.done{background:var(--green);border-color:var(--green);color:#fff}.lesson-list b{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:13px}.lesson-list small{grid-column:2;display:flex;gap:5px;align-items:center;color:#7690ac;font-size:11px}.lesson-list small svg{color:#2f8fca}.autosave-note{margin-top:18px;display:flex;gap:10px;padding:13px;border:1px solid #bfe2cc;border-radius:8px;background:#f2fbf5;color:#2b6843;font-size:12px}.autosave-note strong{display:block;margin-bottom:2px}.autosave-note svg{flex:0 0 auto}.workspace,.mode-page,.quiz-page,.challenge-page,.result-page{min-width:0;padding:22px}.lesson-hero{display:flex;justify-content:space-between;gap:24px;padding:22px;border:1px solid color-mix(in srgb,var(--track) 26%,#d9e2ef);border-radius:8px;background:linear-gradient(135deg,color-mix(in srgb,var(--track-soft) 65%,white),#fff 58%),#fff}.lesson-code{display:inline-flex;align-items:center;gap:9px;color:var(--track);font-weight:800;font-size:13px}.lesson-code b{width:28px;height:28px;display:grid;place-items:center;border-radius:6px;background:var(--track);color:#fff}.lesson-hero h1{margin:10px 0 7px;color:#102947;font-size:34px;line-height:1.12}.lesson-hero p{max-width:780px;margin:0;color:#5a687b;line-height:1.6;font-size:14px}.hero-actions{flex:0 0 230px;display:grid;align-content:center;gap:10px}.hero-actions a,.hero-actions button,button.primary,a.material-open{border:0;border-radius:7px;background:#1767d0;color:#fff;min-height:43px;padding:10px 14px;display:inline-flex;justify-content:center;align-items:center;gap:7px;font-weight:800;box-shadow:0 4px 10px #1767d022}.hero-actions button{background:#fff;color:#1767d0;border:1px solid #b9cde8;box-shadow:none}.concept-stack{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:16px 0}.concept-stack article{display:grid;grid-template-columns:38px 1fr;gap:12px;padding:16px;border:1px solid var(--line);border-radius:8px;background:#fff}.concept-stack article>span{width:34px;height:34px;display:grid;place-items:center;border-radius:50%;border:2px solid #2f73d7;color:#1b5db3;font:800 13px Source Code Pro,monospace}.concept-stack h2{margin:2px 0 7px;color:#17436e;font-size:17px}.concept-stack p{margin:0;color:#5b687a;line-height:1.55;font-size:13px}.concept-stack code{display:inline-block;margin-top:10px;padding:6px 8px;border-radius:5px;background:#edf4ff;color:#1559a7;font:700 12px Source Code Pro,monospace;overflow-wrap:anywhere}.simulator{border:1px solid var(--line);border-radius:8px;background:#fff;box-shadow:0 7px 18px #25384f12;overflow:hidden}.sim-header{min-height:54px;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:12px;padding:11px 14px;border-bottom:1px solid var(--line)}.file-badge{width:30px;height:30px;display:grid;place-items:center;border-radius:6px;color:#fff;font-weight:800}.file-badge.word{background:var(--word)}.file-badge.ppt{background:var(--powerpoint)}.sim-header strong,.sim-header small{display:block}.sim-header small{color:var(--muted);margin-top:2px}.saved{color:var(--green);font-size:12px;font-weight:800}.fake-ribbon{border-bottom:1px solid #d9e1ea;background:#fbfcfe}.fake-ribbon .tabs{display:flex;gap:2px;padding:7px 12px 0;border-bottom:1px solid #dce4ed}.fake-ribbon .tabs span{padding:8px 12px;font-size:11px;color:#536274;border-radius:6px 6px 0 0}.fake-ribbon .tabs span.active{color:#0d58b5;background:#fff;border:1px solid #dce4ed;border-bottom-color:#fff;font-weight:800}.fake-ribbon .tools{display:flex;align-items:center;gap:6px;min-height:54px;padding:9px 14px;overflow-x:auto}.fake-ribbon .tools button,.ppt-toolbar button,.mini-settings button,.ppt-settings button{border:1px solid #cbd6e2;background:#fff;color:#42536b;border-radius:6px;min-width:38px;min-height:36px;padding:8px 10px;display:inline-flex;align-items:center;justify-content:center;gap:6px;font-weight:700}.fake-ribbon .tools button.active,.ppt-toolbar button.active,.mini-settings button.active,.ppt-settings button.active{background:#eaf3ff;border-color:#75a8e6;color:#115cb3}.ppt-toolbar button.preview-action,.ppt-settings button.preview-action{background:#fff8e8;border-color:#e6bf67;color:#7a5410}.ppt-toolbar button.preview-action:not(:disabled):hover,.ppt-settings button.preview-action:not(:disabled):hover{background:#fff1c9;border-color:#d89d22}.ppt-toolbar button:disabled,.ppt-settings button:disabled{cursor:not-allowed;opacity:.48}.document-stage{display:grid;grid-template-columns:190px minmax(0,1fr);min-height:560px;background:#eef3f8}.mini-settings{padding:16px;border-right:1px solid #d8e1eb;background:#f8fafc;display:grid;align-content:start;gap:13px}.mini-settings label,.ppt-settings label{display:grid;gap:6px;color:#536274;font-size:12px;font-weight:700}.mini-settings b{color:#155fb3}.mini-settings input{width:100%;accent-color:var(--word)}.paper-preview{width:min(720px,calc(100% - 38px));min-height:680px;margin:22px auto;padding:52px 58px;background:linear-gradient(90deg,transparent 0 50px,#edf1f6 50px 51px,transparent 51px),var(--paper);color:#1d2431;box-shadow:0 8px 24px #263a5518;transform:scale(var(--zoom));transform-origin:top center;transition:transform .18s ease;font-synthesis:weight style}.paper-preview .doc-header{display:flex;justify-content:space-between;border-bottom:3px double #34475c;padding-bottom:6px;margin-bottom:24px;color:#657285;font-size:11px;font-style:italic}.paper-preview h2{margin:0 0 8px;font-size:20px;font-weight:500;font-style:normal;line-height:1.25}.paper-preview .selectable-text{border-radius:4px;outline:2px solid transparent;outline-offset:3px;cursor:text;transition:background .15s ease,box-shadow .15s ease,outline-color .15s ease}.paper-preview .selectable-text:hover{background:#edf6ff}.paper-preview .selectable-text.selected{outline-color:#75a8e6;background:#eaf3ff;box-shadow:0 0 0 4px #eaf3ff}.paper-preview .selectable-text.bold{font-weight:800}.paper-preview .selectable-text.italic{font-style:italic}.paper-preview h3{margin:0 0 14px;color:#374c68;font-size:19px;font-style:normal;font-weight:700}.paper-preview p{font-family:Georgia,Times New Roman,serif;font-size:14px;line-height:1.8;margin:0 0 13px}.paper-preview.columns-2 p,.paper-preview.columns-2 ul{column-count:2;column-gap:28px}.paper-preview.columns-2 li{break-inside:avoid}.paper-preview mark{background:#fff0b8;color:#b46c00;margin-left:4px}.paper-preview ul{margin:12px 0;padding-left:22px;line-height:1.75}.paper-preview figure{float:right;width:170px;margin:0 0 12px 18px;text-align:center}.image-placeholder{height:118px;display:grid;place-items:center;border:1px solid #c5d2df;background:linear-gradient(135deg,#dcecff,#f9fbff),#fff;color:var(--word)}.paper-preview figcaption{margin-top:4px;font-size:11px;color:#6a7483}.paper-preview table{width:100%;border-collapse:collapse;margin-top:16px;font-size:13px}.paper-preview th{background:#1d5fa8;color:#fff}.paper-preview th,.paper-preview td{border:1px solid #96a9bd;padding:8px;text-align:right}.paper-preview th:first-child,.paper-preview td:first-child{text-align:left}.footnote{display:block;border-top:1px solid #4c5968;margin-top:28px;padding-top:7px;color:#5a6472}.ppt-ribbon{border-bottom:1px solid var(--line);background:#fbfcfe}.ppt-tabs{display:flex;align-items:end;gap:2px;padding:8px 14px 0;overflow-x:auto;border-bottom:1px solid #dce4ed}.ppt-tabs button{border:1px solid transparent;border-bottom:0;background:transparent;color:#536274;border-radius:6px 6px 0 0;min-height:31px;padding:7px 12px;font-weight:700;white-space:nowrap}.ppt-tabs button.active{background:#fff;border-color:#dce4ed;color:var(--powerpoint)}.ppt-toolbar{display:flex;align-items:center;gap:8px;min-height:58px;padding:10px 14px;background:#fff;overflow-x:auto}.ppt-toolbar button{white-space:nowrap}.ppt-stage{display:grid;grid-template-columns:150px minmax(0,1fr) 210px;min-height:620px;background:#eef3f8}.ppt-main-view{min-width:0;display:grid;align-content:start;overflow:auto}.slide-rail{padding:14px;border-right:1px solid #d8e1eb;display:grid;align-content:start;gap:10px;background:#f9fbfd}.slide-rail button{border:1px solid #cfd9e5;border-radius:7px;background:#fff;display:grid;grid-template-columns:22px 1fr;gap:7px;align-items:center;padding:8px;text-align:left;color:#47586f}.slide-rail button.active{border-color:var(--powerpoint);box-shadow:inset 4px 0 var(--powerpoint);color:#a9361d}.slide-rail i{font-style:normal;color:var(--muted);font-size:11px}.slide-rail span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:11px;font-weight:700}.slide-canvas{width:min(780px,calc(100% - 36px));min-width:0;aspect-ratio:16 / 9;align-self:start;justify-self:center;margin:26px auto;padding:clamp(22px,6cqw,50px) clamp(28px,8cqw,60px) clamp(24px,6cqw,46px);position:relative;overflow:hidden;border:1px solid #cbd6e1;background:linear-gradient(135deg,color-mix(in srgb,var(--ppt-bg-2) 55%,transparent),transparent 54%),var(--ppt-bg);box-shadow:0 10px 24px #25384f16;color:var(--ppt-text);font-family:var(--ppt-font);container-type:inline-size}.slide-canvas:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;border-top:10px solid var(--ppt-accent);pointer-events:none;z-index:3}.slide-theme-band{position:absolute;left:0;top:10px;width:24px;height:52%;background:linear-gradient(180deg,var(--ppt-accent),var(--ppt-accent-2));opacity:.95;z-index:1}.theme-sales .slide-theme-band{width:100%;height:28px;top:auto;bottom:24px}.theme-executive .slide-theme-band{width:140px;height:140px;border-radius:0 0 140px;opacity:.18}.slide-title-block,.slide-content-grid{position:relative;z-index:2}.slide-title-block{display:grid;gap:clamp(3px,1.2cqw,8px);text-align:center;margin-bottom:clamp(8px,3cqw,24px)}.slide-title-block h2{margin:0;color:var(--ppt-title);font-size:clamp(18px,4.4cqw,30px);line-height:1.08}.slide-title-block p{color:var(--ppt-accent);margin:0;font-size:clamp(12px,2.2cqw,16px)}.slide-title-block:after{content:"";display:block;width:46%;height:clamp(2px,.6cqw,3px);margin:4px auto 0;background:var(--ppt-accent);border-radius:999px}.slide-content-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:clamp(8px,2.6cqw,18px);align-items:center}.layout-two-content .slide-content-grid,.layout-comparison .slide-content-grid{grid-template-columns:minmax(0,1fr) minmax(180px,.82fr)}.slide-canvas ul{width:min(430px,78%);margin:0 auto;padding-left:clamp(18px,4cqw,28px);line-height:1.58;color:var(--ppt-text);font-size:clamp(13px,2.55cqw,18px)}.slide-canvas li{position:relative;padding-left:3px}.slide-canvas li::marker{color:var(--ppt-accent)}.slide-canvas li em{display:inline-grid;place-items:center;width:22px;height:22px;margin-right:8px;border-radius:999px;background:var(--ppt-accent);color:#fff;font-size:12px;font-style:normal;font-weight:800}.animated-list li,.animated-smart-art span{animation-duration:.86s;animation-fill-mode:both;animation-timing-function:cubic-bezier(.2,.75,.2,1)}.animation-fade .animated-list li,.animation-fade .animated-smart-art span{animation-name:pptFade}.animation-wedge .animated-list li,.animation-wedge .animated-smart-art span{animation-name:pptWedge;transform-origin:left center}.animation-by-paragraph .animated-list li,.animation-by-paragraph .animated-smart-art span{animation-name:rise}.animation-by-paragraph .animated-list li:nth-child(2),.animation-by-paragraph .animated-smart-art span:nth-child(2){animation-delay:.16s}.animation-by-paragraph .animated-list li:nth-child(3),.animation-by-paragraph .animated-smart-art span:nth-child(3){animation-delay:.32s}.animation-by-paragraph .animated-smart-art span:nth-child(4){animation-delay:.48s}.animation-fade .animated-list li:nth-child(2),.animation-wedge .animated-list li:nth-child(2){animation-delay:.08s}.animation-fade .animated-list li:nth-child(3),.animation-wedge .animated-list li:nth-child(3){animation-delay:.16s}@keyframes rise{0%{opacity:.35;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes pptFade{0%{opacity:0}to{opacity:1}}@keyframes pptWedge{0%{opacity:.2;clip-path:polygon(0 0,0 0,0 100%,0 100%);transform:scaleX(.9)}to{opacity:1;clip-path:polygon(0 0,100% 0,100% 100%,0 100%);transform:scaleX(1)}}.smart-art{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;align-items:stretch}.smart-art span{min-height:92px;display:grid;place-items:center;gap:7px;position:relative;padding:12px 8px;border-radius:14px;color:#fff;background:linear-gradient(135deg,var(--ppt-accent),var(--ppt-accent-2));box-shadow:0 8px 18px color-mix(in srgb,var(--ppt-accent) 22%,transparent)}.smart-art span:not(:last-child):after{content:"";position:absolute;right:-15px;top:calc(50% - 7px);width:0;height:0;border-top:7px solid transparent;border-bottom:7px solid transparent;border-left:11px solid var(--ppt-accent-2)}.smart-art i{width:28px;height:28px;display:grid;place-items:center;border-radius:50%;background:#ffffff28;font-style:normal;font-weight:900}.smart-art b{font-size:12px;text-align:center}.layout-placeholder{min-height:clamp(112px,21cqw,160px);border:2px dashed color-mix(in srgb,var(--ppt-accent) 45%,#b9c8d9);border-radius:10px;background:#ffffffa8;display:grid;place-items:center;align-content:center;gap:6px;color:var(--ppt-muted)}.layout-placeholder b{color:var(--ppt-title)}.layout-placeholder small{border-radius:999px;background:var(--ppt-bg-2);color:var(--ppt-accent);padding:4px 10px;font-weight:800}.shape-diagram{grid-column:1 / -1;display:flex;justify-content:center;align-items:center;gap:14px;margin-top:2px;position:relative}.shape-diagram span{min-width:92px;min-height:42px;display:grid;place-items:center;color:#fff;font-weight:800;font-size:12px}.shape-arrow{background:var(--ppt-accent);clip-path:polygon(0 0,78% 0,100% 50%,78% 100%,0 100%,14% 50%)}.shape-arrow.accent{background:var(--ppt-accent-2)}.shape-diamond{width:54px;min-width:54px;transform:rotate(45deg);background:#516171;color:transparent;position:relative}.shape-diamond:after{content:"?";position:absolute;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;transform:rotate(-45deg);color:#fff}.shape-diagram.grouped{padding:12px;border:2px dotted var(--ppt-accent);border-radius:10px}.shape-diagram b{position:absolute;right:8px;bottom:-12px;padding:3px 8px;border-radius:999px;background:#fff;color:var(--ppt-accent);border:1px solid color-mix(in srgb,var(--ppt-accent) 45%,#ccd6e1);font-size:11px}.slide-picture-layer{position:absolute;top:34px;right:40px;bottom:34px;left:40px;background-size:contain;background-position:center;background-repeat:no-repeat;opacity:.24;z-index:0}.picture-front .slide-picture-layer{inset:auto 44px 44px auto;width:190px;height:140px;opacity:.95;z-index:4}.combined-slide{padding:clamp(22px,5cqw,42px) clamp(26px,6cqw,54px) clamp(22px,5cqw,42px)}.combined-slide .slide-title-block{gap:clamp(2px,.8cqw,4px);margin-bottom:clamp(6px,2cqw,12px)}.combined-slide .slide-title-block h2{font-size:clamp(18px,4cqw,28px)}.combined-slide .slide-title-block p{font-size:clamp(11px,2cqw,14px)}.combined-slide .slide-title-block:after{width:32%;height:2px}.combined-slide .slide-picture-layer{opacity:.12}.combined-slide .slide-content-grid{grid-template-columns:minmax(0,1fr) minmax(0,.88fr);gap:clamp(5px,1.4cqw,9px) clamp(8px,2cqw,14px)}.combined-slide .smart-art{grid-column:1 / -1;gap:clamp(4px,1.3cqw,9px)}.combined-slide .smart-art span{min-height:clamp(38px,9cqw,62px);padding:clamp(4px,1.4cqw,8px) clamp(5px,1.2cqw,7px);border-radius:10px}.combined-slide .smart-art i{width:clamp(18px,3.5cqw,23px);height:clamp(18px,3.5cqw,23px);font-size:clamp(9px,1.8cqw,11px)}.combined-slide .shape-diagram{grid-column:auto;gap:clamp(4px,1.2cqw,7px);margin:0;transform:scale(.72);transform-origin:center}.combined-slide .shape-diagram span{min-width:clamp(54px,12cqw,76px);min-height:clamp(25px,6cqw,34px);font-size:clamp(9px,1.8cqw,12px)}.combined-slide .shape-diamond{width:clamp(30px,7cqw,42px);min-width:clamp(30px,7cqw,42px)}.combined-slide .layout-placeholder{min-height:clamp(54px,12cqw,82px);gap:3px;font-size:clamp(10px,2cqw,14px)}.combined-slide .layout-placeholder small{padding:3px 8px;font-size:clamp(9px,1.8cqw,11px)}.combined-slide .ppt-data-table{grid-column:auto;width:100%;font-size:clamp(9px,1.8cqw,11px)}.combined-slide .ppt-data-table th,.combined-slide .ppt-data-table td{padding:clamp(2px,.9cqw,5px) clamp(4px,1.2cqw,7px)}.ppt-data-table{grid-column:1 / -1;width:78%;margin:0 auto;border-collapse:collapse;background:#fff;font-size:13px;box-shadow:0 6px 14px #1d2c4012}.ppt-data-table th{background:var(--ppt-accent);color:#fff}.ppt-data-table th,.ppt-data-table td{border:1px solid #c9d4df;padding:8px 10px;text-align:right}.ppt-data-table th:first-child,.ppt-data-table td:first-child{text-align:left}.slide-action-buttons{position:absolute;left:44px;bottom:38px;display:flex;gap:8px;z-index:5}.slide-action-buttons button{width:30px;height:30px;border:1px solid color-mix(in srgb,var(--ppt-accent) 60%,white);border-radius:50%;background:#fff;color:var(--ppt-accent);font-weight:900}.timing-badge{position:absolute;right:42px;top:32px;border-radius:999px;padding:5px 11px;background:#ffffffd9;border:1px solid color-mix(in srgb,var(--ppt-accent) 40%,white);color:var(--ppt-accent);font-size:12px;font-weight:900;z-index:5}.notes-strip{position:absolute;left:60px;right:60px;bottom:56px;border-top:1px solid #d8e1eb;padding-top:7px;color:var(--ppt-muted);font-size:11px;z-index:5}.master-marker{position:absolute;right:40px;bottom:40px;padding:5px 10px;border-radius:999px;border:1px solid color-mix(in srgb,var(--ppt-accent) 45%,white);background:#ffffffd9;color:var(--ppt-accent);font-size:11px;font-weight:900;z-index:5}.slide-footer{position:absolute;left:0;right:0;bottom:0;min-height:24px;padding:5px 42px;display:flex;justify-content:space-between;align-items:center;background:var(--ppt-footer);color:#fff;font-size:11px;z-index:5}.transition-gallery{box-shadow:inset 0 0 0 6px color-mix(in srgb,var(--ppt-accent) 20%,transparent),0 10px 24px #25384f16}.transition-reveal .slide-title-block,.transition-ripple .slide-title-block,.transition-checkerboard .slide-title-block{animation:revealIn .8s ease both}@keyframes revealIn{0%{opacity:.5;transform:translate(-12px)}to{opacity:1;transform:translate(0)}}.slide-canvas.mini{width:100%;min-width:0;margin:0;padding:22px 24px 24px;box-shadow:none}.slide-canvas.mini .slide-title-block{gap:3px;margin-bottom:10px}.slide-canvas.mini .slide-content-grid{display:none}.slide-canvas.mini h2{font-size:13px}.slide-canvas.mini .slide-title-block p,.slide-canvas.mini ul,.slide-canvas.mini .smart-art b,.slide-canvas.mini .layout-placeholder,.slide-canvas.mini .notes-strip,.slide-canvas.mini .timing-badge,.slide-canvas.mini .slide-action-buttons,.slide-canvas.mini .master-marker{display:none}.sorter-board{display:grid;grid-template-columns:repeat(2,minmax(190px,1fr));gap:16px;padding:24px}.sorter-board button{border:1px solid #cbd6e1;border-radius:8px;background:#fff;padding:10px;display:grid;gap:8px;color:#40536b;text-align:left}.sorter-board button.active{border-color:var(--powerpoint);box-shadow:0 0 0 3px #eaf3ff}.sorter-board span{font-weight:800;font-size:12px}.outline-view{margin:24px;border:1px solid #ccd6e1;border-radius:8px;background:#fff;overflow:hidden}.outline-view button{width:100%;border:0;border-bottom:1px solid #e5ebf2;background:#fff;color:#324763;display:grid;gap:5px;padding:13px 16px;text-align:left}.outline-view button.active{background:#fff4f0;color:#9f351c}.outline-view span{padding-left:22px;font-size:12px;color:#5d6c80}.notes-page-view,.handout-view,.master-view{margin:24px;padding:22px;border:1px solid #cbd6e1;border-radius:8px;background:#fff}.notes-page-view{display:grid;gap:18px}.notes-page-view section{min-height:120px;border:1px solid #dce4ed;padding:16px;background:repeating-linear-gradient(0deg,#fff 0,#fff 27px,#edf1f6 27px,#edf1f6 28px)}.notes-page-view h3{margin:0 0 8px;color:#243a55}.notes-page-view p{margin:0;color:#536274;line-height:1.6}.handout-view{display:grid;gap:18px}.handout-view>div{display:grid;grid-template-columns:minmax(180px,280px) 1fr;gap:18px;align-items:center}.handout-view i{height:1px;display:block;background:repeating-linear-gradient(90deg,#cbd6e1 0 18px,transparent 18px 28px)}.master-view{display:grid;grid-template-columns:minmax(100px,120px) minmax(0,1fr);gap:14px;margin:18px;padding:16px}.master-view aside{display:grid;align-content:start;gap:8px}.master-view aside span{border:1px solid #d8e1eb;border-radius:6px;padding:7px;background:#f8fafc;color:#536274;font-size:12px;font-weight:800}.master-view .slide-canvas{width:100%;min-width:0;margin:0}.master-view .slide-title-block{margin-bottom:clamp(4px,1.5cqw,10px)}.master-view .slide-title-block h2{font-size:clamp(13px,4cqw,22px)}.master-view .slide-title-block p{font-size:clamp(9px,2.1cqw,13px)}.master-view .slide-canvas ul{font-size:clamp(9px,2.25cqw,13px);line-height:1.32}.ppt-settings{padding:16px;border-left:1px solid #d8e1eb;background:#f9fbfd;display:grid;align-content:start;gap:13px}.ppt-settings select{width:100%;border:1px solid #c3cfdd;border-radius:6px;padding:8px;background:#fff;color:#30445d}.setting-summary,.animation-pane{display:grid;gap:6px;margin-top:8px;padding:12px;border:1px solid #eed1c8;border-radius:8px;background:#fff7f4;color:#8c341d}.setting-summary span,.setting-summary small,.animation-pane span{font-size:12px}.setting-summary b{font-size:18px}.animation-pane{border-color:#ccd6e1;background:#fff;color:#40536b}.animation-pane strong{color:#243a55}.animation-pane strong{display:flex;justify-content:space-between;gap:8px;align-items:center}.animation-pane strong small{color:#a24927;font-size:11px}.animation-pane span{display:grid;grid-template-columns:24px 1fr;gap:7px;align-items:center}.animation-pane span i{width:22px;height:22px;display:grid;place-items:center;border-radius:50%;background:#eaf3ff;color:#145cad;font-size:11px;font-style:normal;font-weight:900}.resource-panel{margin-top:16px;display:grid;grid-template-columns:240px 1fr;gap:14px;padding:18px;border:1px solid var(--line);border-radius:8px;background:#fff}.resource-panel h2{margin:0 0 7px;color:#173c64;font-size:19px}.resource-panel p{margin:0;color:var(--muted);line-height:1.55;font-size:13px}.resource-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.resource-grid a{min-width:0;display:grid;grid-template-columns:auto 1fr auto auto;align-items:center;gap:8px;border:1px solid #dbe4ee;border-radius:7px;padding:10px;color:#33455d;background:#fbfdff;font-size:12px}.resource-grid a:hover{border-color:#9fbadd;color:#145caf}.resource-grid a span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.resource-grid a small{color:var(--muted);font-weight:800}.coach-panel{min-height:calc(100vh - 146px);height:calc(100vh - 146px);position:sticky;top:146px;overflow:auto;border-left:1px solid var(--line);background:#fbfcfe;padding:18px 16px 26px}.coach-title{display:flex;gap:10px;align-items:center;padding-bottom:14px}.coach-title svg{color:#dc8f15}.coach-title strong,.coach-title small{display:block}.coach-title small{color:var(--muted);margin-top:2px}.coach-tabs{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line);border-radius:8px;overflow:hidden;background:#fff;margin-bottom:16px}.coach-tabs button{border:0;background:transparent;padding:10px 5px;text-align:center;color:#667386;font-size:11px;border-right:1px solid var(--line)}.coach-tabs button:last-child{border-right:0}.coach-tabs .active{color:#1767d0;background:#edf5ff;font-weight:800}.coach-tabs button:focus-visible{outline:2px solid #1767d0;outline-offset:-2px}.coach-panel section{border:1px solid var(--line);background:#fff;border-radius:8px;padding:13px;margin-bottom:14px}.coach-panel h3{margin:0 0 10px;color:#213a57;font-size:14px}.goal-row,.coach-task{display:grid;grid-template-columns:28px 1fr;gap:9px;align-items:start;padding:9px 0;border-top:1px solid #edf1f5;color:#536172;font-size:12px;line-height:1.4}.goal-row:first-of-type,.coach-task:first-of-type{border-top:0}.goal-row span,.coach-task i{width:25px;height:25px;display:grid;place-items:center;border-radius:50%;background:#edf5ff;color:#1767d0;font-style:normal;font-weight:800;font-size:11px}.coach-progress{padding:14px;border:1px solid #c7e3d1;border-radius:8px;background:#f2fbf5;color:#2a6844;margin-bottom:14px}.coach-progress strong{font-size:28px}.coach-progress span{display:block;margin:3px 0 10px;font-size:12px}.tip-box{display:flex;gap:9px;padding:14px;border:1px solid #f0d3a2;border-radius:8px;background:#fff9ee;color:#7c5817;font-size:12px;line-height:1.55}.mode-heading,.challenge-heading{display:flex;justify-content:space-between;gap:22px;align-items:flex-end;margin-bottom:18px}.mode-heading>div:first-child{position:relative;padding-left:52px}.mode-number{position:absolute;top:-8px;left:0;color:#c6d5e6;font:800 42px Source Code Pro,monospace}.mode-heading h1,.challenge-heading h1,.result-page h1{margin:0;color:#102947;font-size:31px}.mode-heading p,.challenge-heading p{margin:7px 0 0;color:var(--muted);max-width:650px;line-height:1.55}.exercise-count,.mission-score{text-align:right;color:var(--green);font-size:30px;font-weight:800}.exercise-count small,.mission-score small{display:block;color:var(--muted);font-size:11px;font-weight:600}.practice-summary{display:grid;gap:8px;justify-items:end}.practice-reset-trigger{border:1px solid #cfd9e5;border-radius:7px;background:#fff;color:#4e6075;display:flex;align-items:center;gap:6px;padding:8px 10px;font-size:12px;font-weight:800}.practice-reset-trigger:not(:disabled):hover{border-color:#9fb0c3;color:#173d6a}.practice-reset-confirm{display:flex;justify-content:space-between;gap:14px;align-items:center;margin:-4px 0 18px;padding:14px;border:1px solid #f0d3a2;border-radius:8px;background:#fff9ee;color:#6e5614}.practice-reset-confirm strong,.practice-reset-confirm span{display:block}.practice-reset-confirm span{margin-top:2px;font-size:12px}.reset-confirm-actions{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}.reset-confirm-actions button{border:1px solid #d8bd89;border-radius:7px;background:#fff;color:#6e5614;padding:9px 12px;font-weight:800}.reset-confirm-actions .danger{border-color:#c64d4d;background:#c64d4d;color:#fff}.practice-layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:16px;align-items:start}.exercise-rail{display:grid;gap:7px;border:1px solid var(--line);border-radius:8px;padding:8px;background:#fff}.exercise-rail button{border:0;border-radius:6px;background:transparent;color:#536174;display:flex;align-items:center;gap:9px;min-height:42px;padding:8px;text-align:left;font-size:12px;font-weight:700}.exercise-rail button.active{background:#edf5ff;color:#135cb2}.exercise-rail button span{flex:0 0 25px;width:25px;height:25px;display:grid;place-items:center;border-radius:50%;border:1px solid #b7c6d8;font-size:11px}.exercise-rail button.complete span{background:var(--green);color:#fff;border-color:var(--green)}.exercise-stage,.quiz-card,.challenge-board{border:1px solid var(--line);border-radius:8px;background:linear-gradient(90deg,transparent 0 36px,#e9eef5 36px 37px,transparent 37px),repeating-linear-gradient(to bottom,var(--paper) 0,var(--paper) 31px,#e6eef5 32px),var(--paper);box-shadow:0 8px 22px #263a5512}.exercise-stage{padding:34px 42px;min-height:480px}.exercise-stage>span,.quiz-card>span{color:var(--green);font-size:12px;text-transform:uppercase;font-weight:800}.exercise-stage h2{margin:9px 0 8px;color:#17436e;font-size:27px}.exercise-stage p{margin:0;color:#526174;line-height:1.6}.choice-grid,.quiz-options{display:grid;gap:10px;margin:24px 0 14px}.choice-grid button,.quiz-options button{border:1px solid #c9d4e1;border-radius:7px;background:#fff;min-height:48px;display:flex;align-items:center;gap:12px;padding:11px 12px;color:#42536b;text-align:left}.choice-grid button i,.quiz-options button i{flex:0 0 30px;width:30px;height:30px;display:grid;place-items:center;border-radius:50%;border:1px solid #a9b8ca;font-style:normal;font-weight:800}.choice-grid button.selected,.quiz-options button.selected{border:2px solid #1767d0;background:#edf5ff;color:#1359ad;font-weight:800}.choice-grid button.selected i,.quiz-options button.selected i{border-color:#1767d0;background:#1767d0;color:#fff}.text-answer{margin:24px 0 14px;display:grid;grid-template-columns:54px 1fr;border:2px solid #6a9fe0;background:#fff;min-height:56px;box-shadow:4px 4px #cadcf0}.text-answer span{display:grid;place-items:center;border-right:1px solid #c8d5e4;color:#2863a2;font-weight:800}.text-answer input{min-width:0;border:0;outline:0;padding:12px 15px;color:#173d6a;font-weight:700}.entry-actions{display:flex;justify-content:space-between;gap:12px;align-items:center}.entry-actions>button:first-child{border:0;background:transparent;color:#836315;display:flex;gap:7px;align-items:center;font-weight:800}.inline-hint,.answer-feedback,.challenge-result{display:flex;align-items:center;gap:11px;margin-top:18px;padding:13px;border-radius:7px}.inline-hint{background:#fff7dc;border-left:4px solid var(--yellow);color:#6e5614;font-size:13px}.answer-feedback{border:1px solid #e1b0b0;background:#fff5f5;color:#8b3737}.answer-feedback.correct{border-color:#85c997;background:#f0faf3;color:#216e3d}.answer-feedback strong,.answer-feedback span,.challenge-result strong,.challenge-result span{display:block}.answer-feedback span,.challenge-result span{margin-top:2px;font-size:12px}.quiz-page,.result-page{max-width:860px;margin:0 auto}.quiz-progress{display:flex;gap:7px;margin-bottom:14px}.quiz-progress i{flex:1;height:6px;border-radius:99px;background:#dce4ee}.quiz-progress i.active{background:var(--green)}.quiz-card{padding:42px 52px}.quiz-card h1{min-height:86px;margin:10px 0;color:#17365a;line-height:1.32;font-size:28px}.quiz-actions{display:flex;justify-content:space-between;margin-top:22px}.quiz-actions>button:first-child{border:0;background:transparent;color:#5e6b7c;font-weight:800}.result-page{text-align:center}.result-page>svg{color:#c79017}.big-score{color:var(--green);font-size:72px;font-weight:800}.big-score span{font-size:28px;color:#718093}.review-list{display:grid;gap:8px;margin:26px 0;text-align:left}.review-list>div{display:flex;gap:10px;align-items:flex-start;padding:12px;border-left:4px solid #c64d4d;background:#fff}.review-list>div.right{border-color:var(--green)}.review-list .right svg{color:var(--green)}.review-list .missed svg{color:#be3e3e}.review-list strong,.review-list small{display:block}.review-list small{color:var(--muted);margin-top:3px}.challenge-heading>div:first-child>span{display:flex;align-items:center;gap:8px;color:#9b6712;font-weight:800;margin-bottom:8px}.challenge-board{padding:18px;display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:16px}.challenge-preview{min-width:0}.challenge-visual{height:100%;min-height:430px;border:1px solid #d7e0ea;border-radius:8px;background:#fff;overflow:hidden;box-shadow:0 6px 18px #24384f10}.visual-window{min-height:62px;display:grid;grid-template-columns:auto 1fr;gap:4px 10px;align-items:center;padding:13px 15px;border-bottom:1px solid #dce5ee;background:#fbfdff}.visual-window .file-badge{grid-row:1 / 3}.visual-window strong{color:#183959;font-size:16px}.visual-window small{color:var(--muted);font-size:12px}.word-final article{width:min(460px,calc(100% - 42px));min-height:330px;margin:22px auto;padding:30px 36px;background:var(--paper);box-shadow:0 7px 18px #263a5518;color:#1d2633}.word-final header{display:flex;justify-content:space-between;padding-bottom:6px;margin-bottom:18px;border-bottom:3px double #36475a;color:#687588;font-size:10px;font-style:italic}.word-final h2{margin:0 0 5px;font-size:18px;line-height:1.25}.word-final h3{margin:0 0 14px;color:#435a75;font-size:17px;font-style:italic}.word-final p{font-family:Georgia,Times New Roman,serif;font-size:13px;line-height:1.65}.word-final ul{margin:12px 0 0;padding-left:18px;line-height:1.7;color:#33445a}.slide-board{min-height:360px;display:grid;grid-template-columns:78px 1fr;background:#eef3f8}.slide-board aside{padding:14px 12px;display:grid;align-content:start;gap:8px;border-right:1px solid #d8e1eb;background:#f9fbfd}.slide-board aside span{height:38px;border:1px solid #d2dce7;border-radius:6px;display:grid;place-items:center;color:#68788c;background:#fff;font-weight:800;font-size:12px}.slide-board aside span:first-child{border-color:var(--powerpoint);color:#b43b22;box-shadow:inset 3px 0 var(--powerpoint)}.slide-board section{align-self:start;width:min(520px,calc(100% - 36px));aspect-ratio:16 / 9;margin:26px auto;padding:42px 48px;position:relative;background:linear-gradient(180deg,transparent 0 75%,#e65332 75% 83%,transparent 83%),#fff;border:1px solid #cfd9e5;box-shadow:0 8px 18px #25384f18}.slide-board section:before{content:"";position:absolute;left:48px;right:48px;top:28px;height:3px;background:#e65332}.slide-board h2{margin:18px 0 8px;text-align:center;color:#172a46;font-size:28px}.slide-board p{margin:0 0 28px;text-align:center;color:#e65332;font-size:15px}.mini-smartart{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.mini-smartart span{display:grid;justify-items:center;gap:7px;color:#173d61;text-align:center;font-size:11px;font-weight:800}.mini-smartart i{width:38px;height:38px;display:block;border-radius:10px;background:linear-gradient(135deg,#0c528d,#122f54)}.challenge-preview .document-stage,.challenge-preview .ppt-stage{min-height:430px}.challenge-preview .mini-settings,.challenge-preview .ppt-settings{display:none}.challenge-preview .document-stage{grid-template-columns:1fr}.challenge-preview .ppt-stage{grid-template-columns:105px 1fr}.challenge-preview .paper-preview{min-height:540px}.challenge-preview .slide-canvas{width:calc(100% - 28px);padding:38px 44px}.challenge-list{display:grid;align-content:start;gap:9px}a.material-open{background:#17436e;min-height:42px}.challenge-list label{display:grid;grid-template-columns:auto 28px 1fr;gap:9px;align-items:start;padding:11px;border:1px solid #dce4ee;border-radius:7px;background:#fff;color:#4d5b6f;line-height:1.42;font-size:12px}.challenge-list label.checked{border-color:#9ad3aa;background:#f2fbf5;color:#276941}.challenge-list input{margin-top:3px;accent-color:var(--green)}.challenge-list label span{width:25px;height:25px;display:grid;place-items:center;border-radius:50%;background:#edf5ff;color:#1767d0;font-weight:800}.challenge-result.warn{background:#fff8e5;border:1px solid #e4c271;color:#765819}.challenge-result.success{background:#edf9f0;border:1px solid #7cbd8e;color:#1f7039}.reset-progress{position:fixed;right:16px;bottom:16px;z-index:50;width:36px;height:36px;border-radius:50%;border:1px solid #bac7d6;background:#fff;color:#6b7685;display:grid;place-items:center;box-shadow:0 4px 12px #1d2c4018}@media(max-width:1320px){.topbar{grid-template-columns:290px 1fr 170px}.mode-nav{gap:8px}.mode-nav button{min-width:80px;font-size:13px}.app-grid{grid-template-columns:282px minmax(0,1fr)}.coach-panel{display:none}.progress-strip{grid-template-columns:220px 1fr 190px}.document-stage{grid-template-columns:165px minmax(0,1fr)}.ppt-stage{grid-template-columns:130px minmax(0,1fr) 170px}}@media(max-width:1120px)and (min-width:941px){.ppt-stage{grid-template-columns:130px minmax(0,1fr)}.ppt-settings{grid-column:1 / -1;border-left:0;border-top:1px solid #d8e1eb;grid-template-columns:repeat(5,minmax(120px,1fr));align-items:start}.setting-summary,.animation-pane{margin-top:0}}@media(max-width:940px){.topbar{min-height:0;grid-template-columns:1fr auto;grid-template-areas:"brand student" "nav nav";padding:10px 14px;row-gap:10px}.brand{grid-area:brand}.student-box{grid-area:student}.brand small,.student-box span:first-child{display:none}.mode-nav{grid-area:nav;width:100%;height:56px;border-top:1px solid #ffffff24;background:#052b5e52;border-radius:8px;justify-content:space-around;gap:0}.mode-nav button{flex:1;min-width:0;flex-direction:column;gap:2px;font-size:10px}.mode-nav button:after{top:0;bottom:auto}.progress-strip{position:static;grid-template-columns:1fr;gap:10px;padding:12px 14px}.weekly-goal{display:none}.app-grid{display:block}.sidebar{position:static;height:auto;min-height:0;border-right:0;border-bottom:1px solid var(--line)}.lesson-group{display:block}.lesson-list{display:flex;overflow-x:auto;padding-bottom:3px}.lesson-list button{flex:0 0 220px}.autosave-note{display:none}.workspace,.mode-page,.quiz-page,.challenge-page,.result-page{padding:16px 14px 32px}.lesson-hero,.mode-heading,.challenge-heading{flex-direction:column;align-items:stretch}.hero-actions{flex-basis:auto}.concept-stack,.resource-panel,.resource-grid,.practice-layout,.challenge-board{grid-template-columns:1fr}.document-stage,.ppt-stage{display:block;overflow:auto}.mini-settings,.ppt-settings{border:0;border-bottom:1px solid var(--line)}.paper-preview{width:720px;transform:none;margin:18px}.slide-rail{display:flex;overflow-x:auto;border-right:0;border-bottom:1px solid var(--line)}.slide-rail button{flex:0 0 145px}.slide-canvas{width:760px;margin:18px}.exercise-rail{display:flex;overflow-x:auto}.exercise-rail button{flex:0 0 160px}.exercise-stage,.quiz-card{padding:28px 22px}.mode-heading>div:first-child{padding-left:0}.practice-summary{justify-items:start}.practice-reset-confirm{flex-direction:column;align-items:stretch}.reset-confirm-actions{justify-content:flex-start}.mode-number{position:static;display:block;font-size:28px}.reset-progress{display:none}}@media(max-width:560px){.track-switch{grid-template-columns:1fr}.lesson-hero h1,.mode-heading h1,.challenge-heading h1,.result-page h1{font-size:26px}.quiz-card h1{font-size:22px;min-height:0}.smart-art{grid-template-columns:repeat(3,1fr)}.resource-grid a{grid-template-columns:auto 1fr auto}.resource-grid a small,.challenge-preview{display:none}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}