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ease-out}.waitlist-modal{width:480px;max-width:90%;background:var(--bg-surface);border:1px solid var(--border);border-radius:16px;padding:48px;position:relative;animation:slideUp .3s var(--ease-spring)}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.waitlist-close{position:absolute;top:16px;right:16px;width:36px;height:36px;border:none;background:transparent;color:var(--text-tertiary);font-size:24px;cursor:pointer;border-radius:8px;transition:all .2s}.waitlist-close:hover{background:var(--bg-primary);color:var(--text-primary)}.waitlist-content{text-align:center}.waitlist-eyebrow{display:inline-flex;align-items:center;justify-content:center;margin-bottom:16px;padding:7px 12px;border-radius:999px;border:1px solid color-mix(in srgb,var(--accent-blue) 24%,var(--border) 76%);background:color-mix(in srgb,var(--accent-blue) 10%,var(--bg-surface) 90%);color:var(--accent-blue);font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase}.waitlist-icon{font-size:48px;margin-bottom:16px}.waitlist-content h2{font-family:var(--font-reading);font-size:28px;font-weight:500;margin-bottom:12px;color:var(--text-primary)}.waitlist-content>p{font-size:15px;color:var(--text-secondary);margin-bottom:32px;line-height:1.6}.waitlist-input-group{display:flex;gap:12px;margin-bottom:16px}.waitlist-input-group input{flex:1;padding:14px 18px;border:1px solid var(--border);border-radius:10px;background:var(--bg-primary);font-size:15px;color:var(--text-primary);outline:none;transition:all .2s}.waitlist-input-group input:focus{border-color:var(--accent-blue);background:var(--bg-surface)}.waitlist-input-group input::placeholder{color:var(--text-tertiary)}.waitlist-note{font-size:13px;color:var(--text-tertiary);margin:0}.waitlist-error{font-size:13px;color:#e53e3e;margin:6px 0 0}.waitlist-success{text-align:center;padding:24px}.waitlist-success-icon{width:64px;height:64px;border-radius:50%;background:var(--accent-green);color:#fff;font-size:28px;display:flex;align-items:center;justify-content:center;margin:0 auto 24px;animation:scaleIn .3s var(--ease-spring)}@keyframes scaleIn{0%{opacity:0;transform:scale(.8)}to{opacity:1;transform:scale(1)}}.waitlist-success h2{font-family:var(--font-reading);font-size:24px;font-weight:500;margin-bottom:8px;color:var(--text-primary)}.waitlist-success p{font-size:15px;color:var(--text-secondary)}.upgrade-modal-overlay{--upgrade-modal-overlay: rgba(28, 22, 14, .72);--upgrade-modal-surface: color-mix(in srgb, var(--bg-surface) 94%, var(--bg-primary) 6%);--upgrade-modal-surface-strong: color-mix(in srgb, var(--bg-surface) 78%, var(--bg-primary) 22%);--upgrade-modal-surface-featured: color-mix(in srgb, var(--bg-surface) 60%, var(--bg-primary) 40%);--upgrade-modal-border: color-mix(in srgb, var(--border) 82%, black 18%);--upgrade-modal-border-strong: color-mix(in srgb, var(--border-focus) 78%, black 22%);--upgrade-modal-accent-soft: color-mix(in srgb, var(--border) 50%, var(--bg-surface) 50%);--upgrade-modal-accent-solid: var(--text-primary);--upgrade-modal-secondary-bg: color-mix(in srgb, var(--bg-primary) 80%, white 20%);--upgrade-modal-secondary-hover: color-mix(in srgb, var(--bg-primary) 68%, white 32%);position:fixed;inset:0;z-index:11000;display:flex;align-items:center;justify-content:center;padding:24px;background:var(--upgrade-modal-overlay);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);animation:fadeIn .2s ease-out}.app-theme-wrapper[data-theme=dark] .upgrade-modal-overlay{--upgrade-modal-overlay: rgba(14, 12, 9, .88);--upgrade-modal-surface: #1d1b18;--upgrade-modal-surface-strong: #252320;--upgrade-modal-surface-featured: #2e2c28;--upgrade-modal-border: #38352e;--upgrade-modal-border-strong: #5a5650;--upgrade-modal-accent-soft: #2e2c28;--upgrade-modal-accent-solid: #edecea;--upgrade-modal-secondary-bg: #1a1816;--upgrade-modal-secondary-hover: #201e1b}.upgrade-modal-shell{position:relative;width:min(1180px,100%);max-height:min(860px,calc(100vh - 32px));overflow:auto;padding:32px 36px 26px;border-radius:28px;border:1px solid var(--upgrade-modal-border);background:var(--upgrade-modal-surface);box-shadow:0 36px 96px #0006}.upgrade-modal-close{position:absolute;top:18px;right:18px;width:40px;height:40px;border-radius:12px;border:1px solid var(--upgrade-modal-border);background:var(--upgrade-modal-surface-strong);color:var(--text-secondary);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:all var(--duration-fast) var(--ease-spring)}.upgrade-modal-close:hover{background:var(--upgrade-modal-surface-featured);color:var(--text-primary);border-color:var(--upgrade-modal-border-strong)}.upgrade-modal-header{max-width:720px;margin:0 auto 22px;text-align:center}.upgrade-modal-eyebrow{display:inline-flex;align-items:center;justify-content:center;padding:7px 12px;border-radius:999px;border:1px solid var(--upgrade-modal-border);background:var(--upgrade-modal-accent-soft);color:var(--text-secondary);font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;margin-bottom:12px}.upgrade-modal-header h2{font-family:var(--font-reading);font-size:clamp(28px,4vw,42px);line-height:1.04;letter-spacing:-.03em;color:var(--text-primary);margin-bottom:10px}.upgrade-modal-subtitle{font-size:15px;line-height:1.6;color:var(--text-secondary);margin:0 auto}.upgrade-modal-segment{display:inline-flex;align-items:center;gap:6px;padding:6px;border-radius:999px;border:1px solid var(--upgrade-modal-border);background:var(--upgrade-modal-surface-strong)}.upgrade-modal-segment span{padding:9px 16px;border-radius:999px;color:var(--text-secondary);font-size:14px;font-weight:500}.upgrade-modal-segment span.active{background:var(--upgrade-modal-surface-featured);color:var(--text-primary);box-shadow:none}.upgrade-modal-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.upgrade-plan-card{min-height:100%;display:flex;flex-direction:column;gap:16px;padding:22px;border-radius:20px;border:1px solid var(--upgrade-modal-border);background:var(--upgrade-modal-surface-strong);box-shadow:0 18px 40px #0000002e}.upgrade-plan-card.featured{border-color:var(--upgrade-modal-border-strong);background:var(--upgrade-modal-surface-featured);box-shadow:0 24px 52px #0000003d}.upgrade-plan-card-top{display:flex;flex-direction:column;gap:12px}.upgrade-plan-card-title-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:8px}.upgrade-plan-card-heading h3{font-family:var(--font-reading);font-size:26px;font-weight:500;color:var(--text-primary)}.upgrade-plan-card-eyebrow{margin-bottom:6px;color:var(--text-tertiary);font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase}.upgrade-plan-card-heading p{font-size:15px;line-height:1.65;color:var(--text-secondary)}.upgrade-plan-card-badge{display:inline-flex;align-items:center;justify-content:center;padding:5px 10px;border-radius:999px;background:var(--upgrade-modal-accent-soft);color:var(--text-secondary);font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase}.upgrade-plan-price{display:flex;align-items:flex-end;gap:8px}.upgrade-plan-price-value{font-family:var(--font-reading);font-size:40px;line-height:1;color:var(--text-primary)}.upgrade-plan-price-cadence{font-size:15px;color:var(--text-secondary);padding-bottom:6px}.upgrade-plan-value{display:flex;flex-direction:column;gap:6px;padding-top:14px;border-top:1px solid color-mix(in srgb,var(--upgrade-modal-border) 76%,transparent 24%)}.upgrade-plan-value strong{color:var(--text-primary);font-size:15px;line-height:1.55}.upgrade-plan-value span{color:var(--text-secondary);font-size:14px;line-height:1.65}.upgrade-plan-value em{color:var(--text-secondary);font-size:13px;font-style:normal;font-weight:600}.upgrade-plan-cta{width:100%;min-height:44px;padding:11px 16px;border-radius:12px;border:1px solid transparent;font-family:var(--font-ui);font-size:15px;font-weight:600;cursor:pointer;transition:transform var(--duration-fast) var(--ease-spring),border-color var(--duration-fast) var(--ease-spring),background var(--duration-fast) var(--ease-spring),color var(--duration-fast) var(--ease-spring)}.upgrade-plan-cta:hover{transform:translateY(-1px)}.upgrade-plan-cta.primary{background:var(--upgrade-modal-accent-solid);border-color:var(--upgrade-modal-accent-solid);color:var(--upgrade-modal-surface);box-shadow:none}.upgrade-plan-cta.primary:hover{background:color-mix(in 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li:before{content:"";position:absolute;top:8px;left:0;width:8px;height:8px;border-radius:999px;background:var(--text-tertiary);box-shadow:none}.upgrade-modal-footnote{margin-top:14px;text-align:center;color:var(--text-tertiary);font-size:13px}.widget-usage-bar{font-size:11px;font-weight:500;color:var(--text-secondary);background:var(--bg-primary);border-bottom:1px solid var(--border);padding:5px 14px;letter-spacing:.2px;transition:background var(--duration-fast),color var(--duration-fast)}.usage-bar-inner{display:flex;align-items:center;gap:7px}.usage-dots{display:flex;gap:3px;flex-shrink:0}.usage-dot{width:5px;height:5px;border-radius:50%;background:color-mix(in srgb,var(--accent-green) 82%,white 18%);box-shadow:0 0 0 2px color-mix(in srgb,var(--accent-green) 18%,transparent);transition:background .25s,box-shadow .25s,opacity .25s}.usage-dot.used{background:color-mix(in srgb,var(--border-focus) 72%,var(--bg-surface) 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strong{color:var(--text-primary)}.usage-limit-benefits{list-style:none;padding:0;margin:14px 0 20px;text-align:left}.usage-limit-benefits li{font-size:13px;color:var(--text-secondary);padding:4px 0 4px 20px;position:relative}.usage-limit-benefits li:before{content:"✓";position:absolute;left:0;color:var(--accent);font-weight:700}.usage-limit-actions{display:flex;flex-direction:column;gap:12px;margin-bottom:20px}.usage-limit-actions .landing-btn-primary,.usage-limit-actions .landing-btn-secondary{width:100%;justify-content:center}@media(max-width:1024px){.about-mission-grid,.team-grid{grid-template-columns:repeat(2,1fr)}.about-story-content{grid-template-columns:1fr;gap:48px}.demo-panels{grid-template-columns:1fr}.demo-widget{width:100%;max-width:500px}.demo-features-highlight,.landing-demo-grid,.landing-review-grid{grid-template-columns:1fr}.pricing-grid{grid-template-columns:repeat(2,1fr)}.pricing-card.featured{transform:none}.upgrade-modal-shell{padding:42px 32px 30px}.upgrade-modal-grid{grid-template-columns:1fr;max-width:760px;margin:0 auto}.upgrade-plan-card.featured{transform:none}.widget-preview-container{grid-template-columns:1fr}.widget-preview,.widget-preview.secondary{width:100%;max-width:none}.landing-waitlist-card{flex-direction:column;align-items:flex-start}.waitlist-actions{width:100%;flex-direction:row;flex-wrap:wrap;margin-left:0}.landing-footer-content{grid-template-columns:1fr;gap:40px}.landing-footer-links{grid-column:1 / -1;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px}}@media(max-width:640px){.legal-header h1{font-size:32px}.about-hero h1{font-size:28px}.landing-demo,.landing-review{padding:72px 20px}.landing-demo-grid{gap:24px}.landing-review-grid{gap:20px}.review-export-window-bar,.review-export-preview-sheet,.review-export-preview-lines{padding-left:14px;padding-right:14px}.review-export-plus-flow{flex-direction:column}.landing-pricing{padding:72px 20px}.pricing-grid{grid-template-columns:1fr}.demo-video-overlay{padding:16px}.demo-video-overlay h3{font-size:20px}.demo-video-frame{aspect-ratio:auto;min-height:640px}.demo-inline{padding:10px}.demo-widget.inline{padding:8px}.demo-widget.inline .demo-transcript-panel,.demo-widget.inline .demo-qa-panel{padding:12px}.demo-widget.inline .demo-transcript-item,.demo-widget.inline .demo-answer-block p,.demo-widget.inline .demo-question-block blockquote{font-size:12.5px}.review-card{padding:22px}.review-card-title-wrap,.review-file-row,.review-format-row{flex-direction:column;align-items:flex-start}.review-format-chips{justify-content:flex-start}.review-summary-flow{flex-direction:column}.review-flow-card,.review-flow-arrow{width:100%}.review-flow-recap{text-align:center}.review-flow-bullets{justify-items:center}.landing-waitlist-card{padding:28px 24px}.landing-waitlist-copy h2{font-size:24px}.waitlist-actions{flex-direction:column;align-items:stretch}.about-mission-grid,.team-grid{grid-template-columns:1fr}.value-item{flex-direction:column;gap:12px}.waitlist-modal{padding:32px 24px}.upgrade-modal-header h2{font-size:32px}.upgrade-plan-card{padding:24px 22px}.upgrade-plan-price-value{font-size:40px}.waitlist-input-group{flex-direction:column}.legal-footer-content{flex-direction:column;gap:24px;text-align:center}.landing-footer-links{grid-template-columns:1fr;gap:24px}}.auth-overlay{position:fixed;inset:0;background:#faf9f5db;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);z-index:21000;display:flex;align-items:center;justify-content:center;padding:24px;animation:fadeIn .2s ease-out}.auth-card{width:min(520px,100%);background:var(--bg-surface);border:1px solid var(--border);border-radius:16px;box-shadow:0 20px 60px #00000014;overflow:hidden}.auth-header{padding:40px 40px 20px;text-align:center}.auth-icon{font-size:52px;line-height:1;margin-bottom:14px}.auth-mail-icon{width:58px;height:58px;display:inline-flex;align-items:center;justify-content:center;border-radius:18px;border:1px solid rgba(120,140,93,.24);background:linear-gradient(180deg,#788c5d29,#788c5d14),var(--bg-surface);color:var(--accent-green);box-shadow:inset 0 1px #ffffff0d}.auth-title{font-family:var(--font-reading);font-size:24px;font-weight:500}.auth-subtitle{margin-top:6px;font-size:14px;color:var(--text-secondary)}.auth-body{padding:28px 40px 36px;display:flex;flex-direction:column;gap:18px}.auth-google{width:100%;padding:12px 16px;border-radius:8px;border:1px solid var(--border);background:var(--bg-surface);font-weight:600;font-size:14px;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:10px;transition:all var(--duration-fast) var(--ease-spring)}.auth-google:hover:not(:disabled){border-color:var(--border-focus);background:var(--bg-primary)}.auth-google:disabled{opacity:.6;cursor:not-allowed}.auth-google-dot{width:10px;height:10px;border-radius:50%;background:var(--accent-blue);box-shadow:0 0 0 4px #6a9bcc33}.auth-divider{display:flex;align-items:center;gap:12px;color:var(--text-tertiary);font-size:12px;text-transform:uppercase;letter-spacing:.08em}.auth-divider:before,.auth-divider:after{content:"";flex:1;height:1px;background:var(--border)}.auth-form{display:flex;flex-direction:column;gap:14px}.auth-sent-state{display:flex;flex-direction:column;gap:16px}.auth-sent-card{border:1px solid rgba(120,140,93,.24);border-radius:14px;padding:18px 18px 16px;background:radial-gradient(circle at top left,rgba(120,140,93,.12),transparent 55%),var(--bg-primary)}.auth-sent-label{font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--accent-green);margin-bottom:10px}.auth-sent-email{font-family:SF Mono,Fira Code,monospace;font-size:18px;line-height:1.5;color:var(--text-primary);word-break:break-word}.auth-sent-copy{margin:10px 0 0;font-size:13px;line-height:1.65;color:var(--text-secondary)}.auth-sent-actions{display:flex;flex-direction:column;gap:10px}.auth-field{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--text-secondary)}.auth-field input{padding:12px 14px;border-radius:8px;border:1px solid var(--border);font-size:14px;font-family:var(--font-ui);background:var(--bg-surface);transition:all var(--duration-fast) var(--ease-out)}.auth-field input:focus{outline:none;border-color:var(--border-focus);box-shadow:0 0 0 3px #788c5d1f}.auth-error{background:#b54a3e1a;border:1px solid rgba(181,74,62,.25);color:var(--danger);padding:10px 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button{background:none;border:none;color:var(--text-secondary);font-size:13px;cursor:pointer}.auth-toggle button:hover{color:var(--text-primary)}.auth-helper{margin:0;font-size:12px;line-height:1.6;color:var(--text-secondary);text-align:center}.auth-legal{font-size:12px;color:var(--text-tertiary);text-align:center;line-height:1.6}.auth-legal a{color:var(--text-primary);text-decoration:none;border-bottom:1px solid transparent}.auth-legal a:hover{border-color:var(--text-primary)}.auth-back{margin-top:4px;background:none;border:none;color:var(--text-secondary);font-size:13px;cursor:pointer;text-align:center}.pw-strength{display:flex;align-items:center;gap:10px;margin-top:6px}.pw-strength-bar{display:flex;gap:4px;flex:1}.pw-segment{flex:1;height:3px;border-radius:2px;background:var(--border);transition:background .2s 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24px #0000001f}.thread-menu-item{width:100%;border:1px solid transparent;background:transparent;border-radius:7px;padding:7px 8px;text-align:left;cursor:pointer;color:var(--text-primary);font-family:var(--font-ui);font-size:12px;font-weight:500;display:flex;align-items:center}.thread-menu-item:hover{background:var(--hover-bg)}.thread-menu-item.danger{color:#a53b36}.thread-menu-item.danger:hover{background:#a53b361a;border-color:#a53b3640}.menu-icon{display:inline-flex;align-items:center;margin-right:6px;opacity:.7}.thread-title-editable{outline:none;caret-color:var(--text-primary);cursor:text;white-space:nowrap;overflow:hidden}.thread-title{display:flex;align-items:center;gap:2px;min-width:0;min-height:18px;font-family:var(--font-ui);font-size:13px;font-weight:500;color:var(--text-secondary);white-space:nowrap;overflow:hidden;-webkit-mask-image:linear-gradient(to right,black calc(100% - 2.5rem),transparent 100%);mask-image:linear-gradient(to right,black calc(100% - 2.5rem),transparent 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.student-chat-overlay{position:relative;inset:auto;background:none;-webkit-backdrop-filter:none;backdrop-filter:none;z-index:auto;animation:none;display:flex;flex-direction:column;flex:1;min-height:0}.al-panel-assistant .student-chat-panel{width:100%;height:100%;border:none;border-radius:0;box-shadow:none;animation:none;background:var(--bg-primary)}.al-panel-assistant>.al-panel-content{overflow:visible}.al-panel-tabs{display:flex;border-bottom:1px solid var(--border);background:var(--bg-primary);flex-shrink:0}.al-panel-tab{flex:1;padding:10px 12px;font-size:12px;font-weight:600;font-family:var(--font-ui);text-transform:uppercase;letter-spacing:.5px;color:var(--text-tertiary);cursor:pointer;border:none;background:none;border-bottom:2px solid transparent;transition:color .15s,border-color .15s}.al-panel-tab:hover{color:var(--text-primary)}.al-panel-tab.al-tab-active{color:var(--accent-blue);border-bottom-color:var(--accent-blue)}.al-panel-content{flex:1;min-height:0;display:flex;flex-direction:column;overflow:hidden}.al-panel-assistant .chat-tabs{background:var(--bg-primary);position:relative;box-sizing:border-box;height:var(--al-app-header-row-height);min-height:var(--al-app-header-row-height);max-height:var(--al-app-header-row-height);padding:6px 10px!important;gap:6px!important;align-items:center;border:none!important;box-shadow:none!important;overflow:hidden}.al-panel-assistant .chat-tabs:after{content:"";position:absolute;left:10px;right:10px;bottom:0;border-bottom:1px solid var(--border);pointer-events:none}.al-panel-assistant .chat-tabs .chat-tabs-inner{padding:3px!important;min-height:0;align-self:stretch;align-items:center;border-radius:12px!important}.al-panel-assistant .chat-tabs .chat-tab{padding:8px 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.qa-card,.al-panel-assistant .al-footer{background:var(--bg-primary)}.al-panel-assistant .chat-message.user .message-content{background:var(--bg-surface)}.al-panel-assistant .chat-study-pane{background:var(--bg-primary)}.al-panel-assistant .chat-study-launch-btn{border-color:var(--border);background:color-mix(in srgb,var(--accent-warm, #8d7150) 16%,var(--bg-primary));color:var(--text-primary);box-shadow:0 2px 8px color-mix(in srgb,#000 18%,transparent)}.al-panel-assistant .chat-study-launch-btn:hover{border-color:color-mix(in srgb,var(--accent-warm, #8d7150) 40%,var(--border));background:color-mix(in srgb,var(--accent-warm, #8d7150) 24%,var(--bg-primary));box-shadow:0 4px 14px color-mix(in srgb,#000 22%,transparent)}.al-panel-assistant .chat-study-launch-btn:focus-visible{outline:2px solid color-mix(in srgb,var(--accent-warm, #8d7150) 65%,transparent);outline-offset:2px}.al-panel-assistant .chat-study-launch-hint{color:var(--text-secondary)}.al-panel-assistant 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