@font-face{font-family:Plain;src:url(/atlas/fonts/plain-400.woff2) format("woff2");font-display:swap;font-style:normal;font-weight:400}@font-face{font-family:Plain;src:url(/atlas/fonts/plain-500.woff2) format("woff2");font-display:swap;font-style:normal;font-weight:500}@font-face{font-family:Plain;src:url(/atlas/fonts/plain-700.woff2) format("woff2");font-display:swap;font-style:normal;font-weight:700}.atlas-landing-root{color-scheme:light;font-family:Plain,Arial,sans-serif;--surface:#fbfdff;--surface-deep:#eef5ff;--surface-raised:#ffffff;--surface-card:#f2f7fd;--surface-soft:#e9f2fc;--text-primary:#0b203b;--text-secondary:#506984;--text-tertiary:#7b91a8;--divider:rgba(20,72,130,0.12);--blue:#175fd3;--blue-light:#438cf0;--blue-pale:#e8f2ff;--gradient:linear-gradient(90deg,#1459c7,#3f87ec 48%,#87bdf7);--slanted-gradient:linear-gradient(45deg,#0755d8,#327cf5 34%,#73afff 68%,#cde5ff)}.atlas-landing-root,.atlas-landing-root *{box-sizing:border-box}html:has(.atlas-landing-root){scroll-behavior:smooth;background:#fbfdff}body:has(.atlas-landing-root){margin:0;min-width:320px;min-height:100vh;overflow-x:hidden;background:#fbfdff;color:#0b203b;font-size:15px;line-height:26px;-webkit-font-smoothing:antialiased;text-rendering:geometricPrecision}:where(.atlas-landing-root) a,:where(.atlas-landing-root) button{color:inherit;font:inherit}:where(.atlas-landing-root) button{border:0}:where(.atlas-landing-root) a{text-decoration:none}:where(.atlas-landing-root) .feature-rail,:where(.atlas-landing-root) .stories-window,:where(.atlas-landing-root) a,:where(.atlas-landing-root) button{-webkit-tap-highlight-color:transparent}:where(.atlas-landing-root) [tabindex]:focus-visible,:where(.atlas-landing-root) a:focus-visible,:where(.atlas-landing-root) button:focus-visible{outline:2px solid var(--blue-light);outline-offset:4px}.site-shell{position:relative;min-height:100vh;flex-direction:column;background:radial-gradient(circle at 50% -200px,rgba(68,137,229,.1),transparent 550px),var(--surface)}.site-shell,.topbar{display:flex;width:100%;align-items:center}.topbar{position:sticky;top:0;z-index:40;height:72px;justify-content:space-between;padding:20px;border-bottom:1px solid rgba(20,72,130,.08);background:rgba(251,253,255,.92);backdrop-filter:blur(18px)}.brand{display:inline-flex;height:28px;align-items:center;flex:0 0 auto}.brand img{display:block;width:104px;height:auto;filter:none}.nav-actions{display:flex;align-items:center;gap:14px;white-space:nowrap}.nav-actions a,.nav-actions button{padding:0;border:0;background:transparent;color:var(--text-secondary);cursor:pointer;font-size:13px;line-height:32px;transition:color .15s ease,background-color .15s ease,transform .15s ease}.nav-actions a:hover,.nav-actions button:hover{color:var(--text-primary)}.nav-actions .nav-cta{height:40px;padding:0 13px;border-radius:10px;background:#0f58c8;box-shadow:inset 0 2px 4px rgba(255,255,255,.22),inset 0 -2px 4px rgba(3,45,110,.18);color:#fff;font-weight:500;line-height:40px}.nav-actions .nav-cta:hover{background:#0a4eBA;color:#fff}.language-select{display:inline-flex;align-items:center}.nav-short-label{display:none}.language-select select{height:34px;padding:0 7px;border:1px solid rgba(20,72,130,.14);border-radius:9px;background:#fff;color:var(--text-primary);cursor:pointer;font:inherit;font-size:12px;font-weight:500}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.nav-actions .nav-cta:active,.primary-button:active{transform:scale(.98)}.page-main{position:relative;z-index:1;display:flex;width:100%;flex-direction:column;align-items:center;gap:140px;padding-bottom:140px;background:var(--surface)}.gradient-text{background:var(--gradient);background-clip:text;-webkit-background-clip:text;color:transparent;-webkit-text-fill-color:transparent}.primary-button{position:relative;z-index:3;display:inline-flex;height:56px;align-items:center;justify-content:center;padding:0 24px;border-radius:14px;background:#0f58c8;box-shadow:inset 0 2px 4px rgba(255,255,255,.4),inset 0 -2px 4px rgba(2,13,29,.16),0 8px 30px rgba(0,65,160,.18);color:#fff;cursor:pointer;font-size:16px;font-weight:500;line-height:24px;white-space:nowrap;transition:transform .15s ease,background-color .15s ease,box-shadow .15s ease}.primary-button:hover{background:#0a4eba;box-shadow:inset 0 2px 4px rgba(255,255,255,.55),inset 0 -2px 4px rgba(2,13,29,.18),0 12px 34px rgba(0,107,255,.24)}.hero-section{width:100%;height:700px;justify-content:flex-start;margin:-24px 0;overflow:hidden;padding:92px 20px 0}.hero-section,.hero-stage{position:relative;display:flex;flex-direction:column;align-items:center}.hero-stage{width:calc(100% + 40px);height:100%;margin-inline:-20px}.hero-stage .primary-button,.hero-stage h1,.hero-stage h2,.trust-block{position:relative;z-index:3}.hero-stage h1{width:min(100%,350px);margin:0 0 16px;color:var(--text-primary);font-size:40px;font-weight:500;letter-spacing:-1.2px;line-height:43px;text-align:center}.hero-stage h2{width:min(calc(100% - 32px),540px);margin:0 0 26px;color:var(--text-secondary);font-size:17px;font-weight:400;letter-spacing:-.2px;line-height:25px;opacity:.92;text-align:center}.hero-study-path{position:absolute;top:-86px;left:50%;z-index:1;display:none;width:760px;max-width:none;height:auto;pointer-events:none;opacity:.82;transform:translateX(-50%);-webkit-user-select:none;-moz-user-select:none;user-select:none}.trust-block{display:flex;width:min(100%,760px);flex-direction:column;align-items:center;margin-top:64px}.trust-block>p{margin:0 0 20px;color:var(--text-secondary);line-height:26px}.trust-block>p,.trust-logos{font-size:15px;text-align:center}.trust-logos{display:grid;width:min(calc(100% - 40px),350px);grid-template-columns:repeat(3,1fr);gap:14px 12px;color:#6f89a6;font-family:Georgia,Times New Roman,serif;font-weight:700;letter-spacing:-.4px;line-height:22px;opacity:.66}.demo-section,.final-section{width:100%;max-width:1000px;padding:0 20px}.demo-section{max-width:1120px;margin-top:-90px}.demo-frame{width:100%;aspect-ratio:5/3;overflow:hidden;border:1px solid rgba(37,97,167,.12);border-radius:16px;background:#0a1a30;box-shadow:none}.demo-frame video{display:block;width:100%;height:100%;-o-object-fit:cover;object-fit:cover;-o-object-position:center top;object-position:center top}.decision-section{width:100%;max-width:1120px;padding:0 20px}.decision-header{max-width:850px}.section-kicker{margin:0 0 16px;color:var(--blue);font-size:12px;font-weight:700;letter-spacing:1.4px;line-height:18px}.decision-header h1{margin:0;color:var(--text-primary);font-size:38px;font-weight:500;letter-spacing:-1.4px;line-height:43px}.decision-header>p:last-child{max-width:700px;margin:22px 0 0;color:var(--text-secondary);font-size:17px;line-height:26px}.outcome-grid{display:grid;margin:46px 0 32px;border-top:1px solid var(--divider)}.outcome-grid article{display:grid;grid-template-columns:1fr auto 1fr;gap:16px;align-items:center;padding:22px 0;border-bottom:1px solid var(--divider)}.outcome-grid span{color:var(--text-secondary)}.outcome-grid i{color:var(--blue-light);font-size:20px;font-style:normal}.outcome-grid strong{color:var(--text-primary);font-size:17px;font-weight:500;text-align:right}.start-panel{display:grid;gap:34px;padding:28px;border:1px solid rgba(23,95,211,.12);border-radius:24px;background:#eef5ff}.start-copy h2{margin:0;color:var(--text-primary);font-size:34px;font-weight:500;letter-spacing:-1px;line-height:39px}.start-copy>p:not(.section-kicker){margin:18px 0 26px;color:var(--text-secondary);font-size:16px;line-height:25px}.start-steps{display:grid;gap:0;margin:0;padding:0;list-style:none}.start-steps li{display:grid;grid-template-columns:36px 1fr;gap:16px;padding:18px 0;border-bottom:1px solid rgba(23,95,211,.12)}.start-steps li:first-child{padding-top:0}.start-steps li:last-child{padding-bottom:0;border-bottom:0}.start-steps>li>span{color:var(--blue);font-size:12px;font-weight:700;letter-spacing:.8px}.start-steps h3{margin:0 0 4px;color:var(--text-primary);font-size:18px;font-weight:500;line-height:24px}.start-steps p{margin:0;color:var(--text-secondary);font-size:14px;line-height:22px}.assurance-row{display:flex;flex-wrap:wrap;gap:10px;padding-top:22px;border-top:1px solid rgba(23,95,211,.12)}.assurance-row span{padding:7px 11px;border:1px solid rgba(23,95,211,.14);border-radius:999px;background:rgba(255,255,255,.7);color:#335575;font-size:12px;line-height:18px}.features-section{display:flex;width:100%;height:702px;flex-direction:column;gap:80px}.features-section>h1,.stories-section>h1{width:100%;margin:0;padding:0 20px;color:var(--text-primary);font-size:34px;font-weight:500;letter-spacing:-1px;line-height:41px}.feature-rail{display:flex;width:100%;height:540px;gap:32px;overflow-x:auto;overflow-y:hidden;padding:0 20px;scrollbar-color:rgba(150,184,226,.35) transparent;scrollbar-width:thin;scroll-padding-inline:20px}.feature-rail::-webkit-scrollbar,.stories-window::-webkit-scrollbar{height:6px}.feature-rail::-webkit-scrollbar-track,.stories-window::-webkit-scrollbar-track{background:transparent}.feature-rail::-webkit-scrollbar-thumb,.stories-window::-webkit-scrollbar-thumb{border-radius:999px;background:rgba(153,189,231,.34)}.feature-card{display:flex;width:340px;min-width:340px;height:540px;flex-direction:column;gap:20px}.feature-label{display:flex;width:100%;height:64px;flex:0 0 64px;flex-direction:column;gap:4px;padding:0 20px}.feature-label h2{margin:0;color:var(--text-primary);font-size:26px;font-weight:500;letter-spacing:-.4px;line-height:34px}.feature-label p{font-size:15px;line-height:26px}.feature-label p,.tool-window{margin:0;color:var(--text-secondary)}.tool-window{position:relative;width:340px;height:456px;flex:0 0 456px;overflow:hidden;border:1px solid rgba(24,80,144,.12);border-radius:20px;background:linear-gradient(155deg,rgba(47,128,255,.025),transparent 45%),var(--surface-raised);box-shadow:0 18px 50px rgba(29,84,150,.08)}.mock-button,.tool-window{display:flex;font-size:11px;line-height:16px}.mock-button{width:calc(100% - 40px);height:42px;align-items:center;justify-content:center;margin:auto 20px 20px;border-radius:9px;background:#e9f2ff;color:#164f9c;font-weight:500;cursor:pointer;transition:background-color .15s ease,color .15s ease,transform .15s ease}.chat-input:hover,.mock-button:hover{background:#dceaff;color:#0f58c8}.chat-input:active,.mock-button:active{transform:scale(.985)}.solve-window{flex-direction:column;padding-top:46px}.tool-copy{display:flex;flex-direction:column;gap:10px;margin:0 20px;padding:16px;border:1px solid var(--divider);border-radius:10px;background:#f7faff}.tool-copy p{margin:0}.tool-copy .micro-question{margin-bottom:2px;color:var(--text-primary);font-weight:500}.scan-line{position:absolute;top:-40px;right:20px;left:20px;height:40px;background:linear-gradient(180deg,transparent,rgba(136,190,255,.45));opacity:.5;animation:scan 5s ease-in-out infinite}.answer-box,.steps-box{display:flex;width:calc(100% - 40px);flex-direction:column;gap:4px;margin:12px 20px 0;padding:12px 14px;border:1px solid rgba(77,153,255,.7);border-radius:10px;background:linear-gradient(135deg,rgba(37,104,208,.18),rgba(134,188,255,.06));color:#174f96;animation:answer 5s ease-in-out infinite}.answer-box small,.document-sheet small,.flash-face small,.note-card small,.quiz-head small,.steps-box small{color:var(--text-tertiary);font-size:10px;line-height:14px}.answer-box strong{color:var(--text-primary);font-weight:500}.steps-box{border-color:var(--divider);background:#f7faff;animation-name:steps}.write-window{flex-direction:column;padding-top:20px}.doc-bar{display:flex;height:22px;align-items:center;gap:5px;padding:0 20px}.doc-bar span{width:5px;height:5px;border-radius:50%;background:var(--text-tertiary);opacity:.5}.document-sheet{position:relative;height:324px;margin:0 20px;overflow:hidden;padding:20px;border:1px solid var(--divider);border-radius:10px;background:#fbfdff}.document-sheet h3{margin:14px 0 16px;color:var(--text-primary);font-size:18px;font-weight:500;letter-spacing:-.2px;line-height:24px}.document-sheet p{margin:0 0 18px;color:var(--text-secondary);font-size:11px;line-height:18px}.document-sheet .gradient-copy{background:var(--gradient);background-clip:text;-webkit-background-clip:text;color:transparent;-webkit-text-fill-color:transparent}.typing-cursor{position:absolute;bottom:48px;left:20px;width:1px;height:14px;border-radius:2px;background:#2f80ff;animation:cursor 1s step-end infinite}.chat-mask,.write-mask{position:absolute;inset:-10px 0;background:linear-gradient(to top,var(--surface-raised) 0,var(--surface-raised) 88%,transparent 100%);animation:reveal-text 3s ease-in-out infinite}.write-window .mock-button{margin-top:auto}.record-window{flex-direction:column;padding:24px 20px 20px}.recording-head{display:flex;align-items:center;gap:7px;color:var(--text-primary);font-size:11px}.record-dot{width:7px;height:7px;border-radius:50%;background:#68a6ff;box-shadow:0 0 14px rgba(104,166,255,.9)}.waveform{display:flex;height:82px;align-items:center;justify-content:center;gap:5px;margin:20px 0;border-radius:10px;background:#f3f8ff}.waveform span{width:3px;height:var(--bar-height);border-radius:999px;background:linear-gradient(180deg,#cfe5ff,#2f80ff);opacity:.72;transform-origin:center;animation:load 1.5s ease-in-out var(--delay) infinite}.note-card{padding:18px;border:1px solid var(--divider);border-radius:10px;background:#fbfdff}.note-card h3{margin:10px 0 8px;color:var(--text-primary);font-size:15px;font-weight:500;line-height:20px}.note-card p{margin:0;font-size:11px;line-height:17px}.note-lines{display:flex;flex-direction:column;gap:6px;margin-top:15px}.note-lines span{width:100%;height:4px;border-radius:999px;background:rgba(183,210,242,.12)}.note-lines span:nth-child(2){width:82%}.note-lines span:nth-child(3){width:61%}.record-window .mock-button{width:100%;margin:auto 0 0}.memorize-window{flex-direction:column;padding:30px 20px 20px;perspective:900px}.flashcard-stage{display:flex;height:270px;align-items:center;justify-content:center;perspective:900px}.flashcard{position:relative;width:250px;height:170px;transform-style:preserve-3d;animation:flip 5s ease-in-out infinite}.flash-face{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:22px;border:1px solid var(--divider);border-radius:12px;backface-visibility:hidden;background:linear-gradient(145deg,#ffffff,#edf5ff);box-shadow:0 18px 40px rgba(29,84,150,.12);text-align:center}.flash-face strong{margin:14px 0;color:var(--text-primary);font-size:18px;font-weight:500;line-height:23px}.flash-face span{color:var(--text-tertiary);font-size:9px}.flash-back{transform:rotateX(180deg)}.progress-row{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:10px;color:var(--text-tertiary);font-size:9px}.progress-row i{display:block;height:4px;overflow:hidden;border-radius:999px;background:rgba(180,210,247,.12)}.progress-row b{display:block;width:50%;height:100%;border-radius:inherit;background:var(--gradient)}.memorize-window .mock-button{width:100%;margin-right:0;margin-left:0}.practice-window{flex-direction:column;padding:22px 20px 20px}.quiz-head{display:flex;align-items:center;justify-content:space-between}.quiz-head span{padding:2px 8px;border-radius:999px;background:rgba(85,153,255,.14);color:#b7d6ff;font-size:9px}.practice-window h3{margin:22px 0 16px;color:var(--text-primary);font-size:14px;font-weight:500;line-height:20px}.choice{position:relative;display:flex;height:38px;align-items:center;gap:10px;margin-bottom:8px;padding:0 12px;border:1px solid var(--divider);border-radius:9px;background:#fbfdff}.choice>span{display:inline-flex;width:16px;height:16px;align-items:center;justify-content:center;border:1px solid rgba(179,209,245,.25);border-radius:50%;color:#c4d7ee;font-size:8px}.choice-1{animation:practice-right 5s ease-in-out infinite}.practice-explain{margin-top:4px;padding:10px 12px;border-radius:9px;background:rgba(55,126,232,.12);color:#1e5b9f;opacity:0;animation:practice-explain 5s ease-in-out infinite}.practice-window .mock-button{width:100%;margin-right:0;margin-left:0}.chat-window{flex-direction:column;padding:24px 18px 18px}.user-message{align-self:flex-end;width:218px;padding:12px 14px;border-radius:12px 12px 4px 12px;background:#2e6fc9;color:#f2f7ff;line-height:17px}.assistant-message{position:relative;display:grid;grid-template-columns:24px 1fr;gap:10px;margin-top:18px;overflow:hidden}.assistant-mark{display:flex;width:24px;height:24px;align-items:center;justify-content:center;border-radius:7px;background:#eaf3ff}.assistant-mark img{width:14px;height:14px;-o-object-fit:contain;object-fit:contain}.assistant-message p{margin:2px 0 8px;color:var(--text-primary)}.assistant-message ol{margin:0;padding-left:16px}.source-chip{display:inline-flex;margin-top:14px;padding:4px 8px;border:1px solid rgba(117,175,252,.22);border-radius:6px;background:rgba(71,136,228,.12);color:#accfff;font-size:9px}.chat-mask{animation:reveal-chat 5s ease-in-out infinite}.chat-input{display:flex;height:42px;align-items:center;justify-content:space-between;margin-top:auto;padding:0 10px 0 14px;border:1px solid var(--divider);border-radius:10px;background:#fbfdff;color:var(--text-tertiary);cursor:pointer;transition:background-color .15s ease,color .15s ease,transform .15s ease}.chat-input span{display:inline-flex;width:24px;height:24px;border-radius:7px;background:var(--text-primary);color:#071426;font-size:14px}.chat-input span,.vortex-section{align-items:center;justify-content:center}.vortex-section{position:relative;display:flex;width:100%;height:min(76vh,720px);min-height:620px;flex-direction:column;gap:32px;overflow:hidden;background:radial-gradient(circle at 50% 52%,rgba(46,128,255,.14),transparent 34%),radial-gradient(circle at 8% 86%,rgba(76,143,248,.1),transparent 38%),radial-gradient(circle at 92% 9%,rgba(113,174,255,.09),transparent 36%),var(--surface-deep)}.vortex-section:after{position:absolute;inset:0;background:radial-gradient(circle at center,transparent 0 31%,rgba(238,245,255,.25) 48%,rgba(238,245,255,.94) 76%);content:"";pointer-events:none}.vortex-glow{position:absolute;top:50%;left:50%;width:1000px;height:1000px;border-radius:50%;background:var(--gradient);filter:blur(100px);transform:translate(-50%,-50%);transition:opacity 80ms linear}.material-layer{position:absolute;inset:0;z-index:1;overflow:hidden;pointer-events:none}.material{position:absolute;top:50%;left:50%;display:block;filter:drop-shadow(0 24px 34px rgba(37,86,145,.2));transition:transform 75ms linear,opacity 75ms linear;-o-object-fit:cover;object-fit:cover;will-change:transform,opacity}.study-notebook{width:142px;height:auto}.study-homework{width:92px;height:auto}.study-pencil{width:118px;height:auto}.study-flashcards{width:108px;height:auto}.study-books{width:132px;height:auto}.vortex-copy{position:relative;z-index:3;display:flex;width:100%;flex-direction:column;align-items:center;gap:32px;padding:0 20px}.vortex-copy h1{width:100%;margin:0;color:var(--text-primary);font-size:34px;font-weight:500;letter-spacing:-1px;line-height:41px;text-align:center}.vortex-copy h2{width:min(100%,480px);margin:0;color:var(--text-secondary);font-size:20px;font-weight:400;letter-spacing:-.2px;line-height:26px;opacity:.92;text-align:center}.stories-section{display:flex;width:100%;max-width:1000px;height:424px;flex-direction:column;gap:80px;padding:0 20px}.stories-section>h1{padding:0}.stories-window{width:100%;height:262px;overflow-x:auto;overflow-y:hidden;scrollbar-color:rgba(150,184,226,.35) transparent;scrollbar-width:thin}.story-grid{display:flex;width:-moz-max-content;width:max-content;gap:20px}.story-column{display:contents}.story-card{display:flex;width:300px;min-width:300px;height:254px!important;flex-direction:column;justify-content:flex-start;padding:24px;border:1px solid rgba(24,80,144,.1);border-radius:16px;background:linear-gradient(155deg,rgba(47,128,255,.025),transparent 44%),var(--surface-card)}.story-signal{display:flex;gap:5px;margin-bottom:20px}.story-signal span{width:14px;height:3px;border-radius:999px;background:linear-gradient(90deg,#2f80ff,#dcecff);opacity:.85}.story-eyebrow{margin:0 0 12px;color:#8db9ef;font-size:10px;font-weight:700;letter-spacing:.09em;line-height:14px}.story-text{margin:0;color:#334f6d;font-size:15px;line-height:23px}.story-meta{margin:auto 0 0;color:var(--text-secondary);font-size:12px;line-height:18px}.final-section{height:562px}.landing-faq-section{display:grid;width:min(100%,1000px);grid-template-columns:minmax(0,.72fr) minmax(0,1.28fr);gap:72px;padding:20px}.landing-faq-heading{position:sticky;top:108px;align-self:start}.landing-faq-heading h1{margin:18px 0 0;color:var(--text-primary);font-size:46px;font-weight:500;letter-spacing:-2px;line-height:1.06}.landing-faq-list{border-top:1px solid var(--divider)}.landing-faq-item{border-bottom:1px solid var(--divider)}.landing-faq-item h2{margin:0}.landing-faq-item button{display:flex;width:100%;align-items:center;justify-content:space-between;gap:24px;padding:24px 0;background:transparent;color:var(--text-primary);cursor:pointer;font-size:18px;font-weight:500;line-height:1.35;text-align:left}.landing-faq-item button i{display:grid;width:30px;height:30px;flex:0 0 30px;place-items:center;border:1px solid rgba(24,80,144,.16);border-radius:50%;background:#edf5ff;color:#1559b7;font-size:20px;font-style:normal;line-height:1}.landing-faq-item>p{max-width:620px;margin:-4px 48px 24px 0;color:var(--text-secondary);font-size:15px;line-height:1.65}.faq-pricing-link{justify-content:space-between;gap:20px;margin-top:28px;padding:17px 20px;border-radius:12px;background:#0f58c8;color:#fff;font-size:15px;font-weight:500}.faq-pricing-link,.final-card{display:flex;align-items:center}.final-card{width:100%;height:562px;flex-direction:column;justify-content:center;gap:32px;overflow:hidden;border:1px solid rgba(228,241,255,.16);border-radius:24px;background:radial-gradient(circle at 82% 18%,rgba(241,248,255,.36),transparent 30%),radial-gradient(circle at 12% 92%,rgba(0,58,166,.32),transparent 32%),var(--slanted-gradient);box-shadow:0 28px 90px rgba(0,40,110,.18);text-align:center}.final-card h1{margin:0;font-size:48px;letter-spacing:-.6px;line-height:50px}.final-card h1,.final-card h1 strong{color:#fff;font-weight:500}.final-card h2{margin:0;color:rgba(248,252,255,.92);font-size:20px;font-weight:400;letter-spacing:-.2px;line-height:26px}.site-footer{display:flex;width:100%;min-height:364px;justify-content:center;background:var(--surface)}.footer-inner{width:100%;max-width:1000px;gap:48px;padding:0 20px 40px}.footer-about,.footer-inner{display:flex;flex-direction:column}.footer-about{max-width:420px;gap:32px}.footer-about p,.footer-about span,.footer-links a,.footer-links button{margin:0;color:var(--text-tertiary);font-size:12px;line-height:18px}.footer-links{display:grid;width:100%;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.footer-links>div{display:flex;flex-direction:column;gap:8px}.footer-links button{padding:0;background:transparent;cursor:pointer;text-align:left}.footer-links a,.footer-links button{transition:color .15s ease}.footer-links a:hover,.footer-links button:hover{color:var(--text-primary)}.dialog-backdrop{position:fixed;inset:0;z-index:100;display:flex;align-items:center;justify-content:center;padding:20px;background:rgba(18,45,78,.34);backdrop-filter:blur(12px);animation:backdrop-in .18s ease-out both}.signup-dialog{position:relative;display:flex;width:min(100%,430px);flex-direction:column;align-items:center;padding:38px;border:1px solid rgba(24,80,144,.14);border-radius:24px;background:radial-gradient(circle at 50% 0,rgba(64,137,244,.11),transparent 45%),#ffffff;box-shadow:0 32px 100px rgba(24,65,115,.22);text-align:center;animation:dialog-in .22s cubic-bezier(.2,.8,.2,1) both}.dialog-close{position:absolute;top:14px;right:14px;display:inline-flex;width:34px;height:34px;align-items:center;justify-content:center;border-radius:10px;background:#edf4fd;color:#4f6884;cursor:pointer;font-size:24px;line-height:1}.dialog-mark{width:48px;height:48px;margin-bottom:18px;border-radius:14px;background:#f0f6ff;-o-object-fit:contain;object-fit:contain;padding:8px}.dialog-kicker{margin:0 0 10px;color:#84b7fb;font-size:11px;font-weight:700;letter-spacing:.12em}.signup-dialog h2{margin:0;color:var(--text-primary);font-size:34px;font-weight:500;letter-spacing:-.8px;line-height:39px}.signup-dialog>p:not(.dialog-kicker){max-width:330px;margin:18px 0 26px;color:var(--text-secondary);font-size:15px;line-height:23px}.dialog-action,.dialog-secondary{width:100%;height:50px;border-radius:12px;cursor:pointer;font-weight:500}.dialog-action{display:flex;align-items:center;justify-content:space-between;padding:0 18px;background:#0f58c8;color:#fff}.dialog-secondary{display:flex;align-items:center;justify-content:center;margin-top:10px;background:#edf4fd;color:#294865}.pricing-dialog{position:relative;width:min(100%,900px);max-height:calc(100vh - 40px);overflow:auto;padding:42px;border:1px solid rgba(24,80,144,.14);border-radius:24px;background:#fff;box-shadow:0 32px 100px rgba(24,65,115,.22);animation:dialog-in .22s cubic-bezier(.2,.8,.2,1) both}.pricing-dialog h2{max-width:660px;margin:0;color:var(--text-primary);font-size:34px;font-weight:500;letter-spacing:-.8px;line-height:39px}.pricing-intro{margin:14px 0 28px;color:var(--text-secondary)}.pricing-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.pricing-plan{display:flex;min-height:250px;flex-direction:column;padding:20px;border:1px solid var(--divider);border-radius:16px;background:#f7faff}.pricing-plan.is-featured{border-color:rgba(20,89,199,.38);background:#eef5ff}.pricing-plan>div{display:flex;align-items:center;justify-content:space-between;gap:8px;color:var(--text-primary);font-weight:500}.pricing-plan em{padding:3px 7px;border-radius:999px;background:#dceaff;color:#1655a5;font-size:9px;font-style:normal;line-height:14px}.pricing-plan strong{margin:22px 0 16px;color:var(--text-primary);font-size:34px;font-weight:500;line-height:38px}.pricing-plan strong small{color:var(--text-secondary);font-size:12px;font-weight:400}.pricing-plan p,.pricing-plan>small{margin:0;color:var(--text-secondary);font-size:12px;line-height:18px}.pricing-plan .pricing-plan-use{margin-top:8px;color:#294865}.pricing-plan>small{margin-top:6px}.pricing-plan button,.pricing-plan>a{display:flex;height:42px;align-items:center;justify-content:center;margin-top:auto;border-radius:10px;background:#0f58c8;color:#fff;cursor:pointer;font-weight:500}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}@keyframes float2{0%,to{transform:translateY(-8px)}50%{transform:translateY(0)}}@keyframes scan{0%,10%{top:-40px;opacity:0}20%{opacity:.5}52%,to{top:300px;opacity:0}}@keyframes answer{0%,33%{opacity:0;transform:scale(.9)}42%,to{opacity:1;transform:scale(1)}}@keyframes steps{0%,45%{opacity:0;transform:scale(.9)}54%,to{opacity:1;transform:scale(1)}}@keyframes reveal-text{0%,20%{transform:translateY(-10px)}72%,to{transform:translateY(100%)}}@keyframes reveal-chat{0%,18%{transform:translateY(-10px)}68%,to{transform:translateY(100%)}}@keyframes cursor{0%,48%{opacity:1}49%,to{opacity:0}}@keyframes load{0%,to{transform:scaleY(.35);opacity:.45}50%{transform:scaleY(1);opacity:1}}@keyframes flip{0%,35%{transform:rotateX(0deg)}47%,85%{transform:rotateX(180deg)}97%,to{transform:rotateX(1turn)}}@keyframes practice-right{0%,35%{border-color:var(--divider);background:rgba(4,15,31,.15)}45%,88%{border-color:rgba(88,164,255,.82);background:rgba(55,126,232,.18)}to{border-color:var(--divider);background:rgba(4,15,31,.15)}}@keyframes practice-explain{0%,42%{opacity:0;transform:translateY(6px)}52%,88%{opacity:1;transform:translateY(0)}to{opacity:0;transform:translateY(6px)}}@keyframes backdrop-in{0%{opacity:0}to{opacity:1}}@keyframes dialog-in{0%{opacity:0;transform:translateY(14px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}@media (min-width:640px){.study-notebook{width:250px}.study-homework{width:150px}.study-pencil{width:190px}.study-flashcards{width:170px}.study-books{width:210px}.topbar{padding-right:40px;padding-left:40px}.brand img{width:118px}.nav-actions{gap:24px}.nav-actions a,.nav-actions button{font-size:15px}.nav-actions .nav-cta{height:40px;padding:0 16px}.page-main{gap:180px;padding-bottom:180px}.hero-section{height:760px;margin:-40px 0;padding-top:150px}.hero-stage{width:min(100%,960px);margin-inline:0}.hero-stage h1{width:860px;margin-bottom:28px;font-size:76px;letter-spacing:-4px;line-height:74px}.hero-stage h2{width:620px;margin-bottom:30px;background:var(--surface);box-shadow:0 0 0 16px var(--surface);font-size:19px;line-height:28px}.hero-study-path{top:-175px;display:block;width:min(1536px,100vw);opacity:.92}.trust-logos{display:flex;width:auto;align-items:center;justify-content:center;gap:34px;font-size:17px}.decision-header h1{font-size:52px;letter-spacing:-2.2px;line-height:58px}.outcome-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.outcome-grid article{display:flex;min-height:158px;flex-direction:column;align-items:flex-start;justify-content:space-between;padding:26px 30px;border-right:1px solid var(--divider)}.outcome-grid article:first-child{padding-left:0}.outcome-grid article:last-child{padding-right:0;border-right:0}.outcome-grid strong{font-size:19px;text-align:left}.start-panel{grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:64px;padding:48px}.start-copy h2{font-size:42px;line-height:47px}.assurance-row{grid-column:1/-1;justify-content:center}.demo-frame{border-radius:24px;box-shadow:none}.demo-section{margin-top:-190px}.features-section{height:676px}.features-section>h1{padding:0 0 0 calc((100% - 1000px) / 2 + 20px);font-size:48px;line-height:56px}.feature-rail{padding-right:calc((100% - 1000px) / 2);padding-left:calc((100% - 1000px) / 2);scrollbar-width:none}.feature-rail::-webkit-scrollbar{display:none}.vortex-copy h1{font-size:48px;line-height:56px}.stories-section{height:857px}.stories-section>h1{font-size:48px;line-height:56px}.stories-window{height:721px;overflow:hidden}.story-grid{display:grid;width:100%;height:721px;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.story-column{display:flex;flex-direction:column;gap:20px}.story-card{width:100%;min-width:0;height:auto!important}.story-0-0{height:227px!important}.story-0-1{height:220px!important}.story-0-2{height:234px!important}.story-1-0{height:260px!important}.story-1-1{height:200px!important}.story-1-2{height:221px!important}.story-2-0{height:200px!important}.story-2-1{height:261px!important}.story-2-2{height:220px!important}.final-card,.final-section{height:637px}.final-card h1{font-size:80px;letter-spacing:-4px;line-height:75px}.site-footer{min-height:224px}.footer-inner{flex-direction:row;align-items:flex-start;justify-content:space-between;gap:80px;padding-bottom:40px}.footer-about,.footer-links{width:420px}}@media (max-width:420px){.topbar{gap:10px}.brand img{width:88px}.nav-actions{gap:7px}.nav-actions a,.nav-actions button{font-size:12px}.nav-actions .nav-cta{padding:0 9px}.nav-blog,.nav-login{display:none}.nav-pricing{max-width:none}.nav-full-label{display:none}.nav-short-label{display:inline}.language-select select{width:45px;padding:0 4px}.hero-stage h1{width:350px}.final-card h1{font-size:clamp(40px,12.3vw,48px);line-height:1.04}.signup-dialog{padding:34px 24px 24px}.pricing-dialog{padding:34px 20px 20px}.pricing-dialog h2{font-size:26px;line-height:31px}.pricing-grid{grid-template-columns:1fr}.pricing-plan{min-height:210px}}@media (max-width:720px){.landing-faq-section{grid-template-columns:1fr;gap:40px}.landing-faq-heading{position:static}.landing-faq-heading h1{font-size:38px}.landing-faq-item button{padding:20px 0;font-size:16px}}@media (max-width:360px){.hero-stage h1{width:calc(100% - 20px);font-size:36px;line-height:39px}.features-section{height:743px}.stories-section{height:465px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:after,:before{animation-duration:.01ms!important;animation-iteration-count:1!important;scroll-behavior:auto!important;transition-duration:.01ms!important}}