@layer properties{@supports (((-webkit-hyphens:none)) and (not (margin-trim:inline))) or ((-moz-orient:inline) and (not (color:rgb(from red r g b)))){*,:before,:after,::backdrop{--tw-outline-style:solid}}}@layer theme{:root,:host{--font-sans:var(--es1-font-sans);--font-mono:var(--es1-font-mono);--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring:where(:not(iframe)){outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab, red, red)){::placeholder{color:color-mix(in oklab, currentcolor 50%, transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.visible{visibility:visible}.absolute{position:absolute}.static{position:static}.block{display:block}.flex{display:flex}.grid{display:grid}.hidden{display:none}.capitalize{text-transform:capitalize}.underline{text-decoration-line:underline}.outline{outline-style:var(--tw-outline-style);outline-width:1px}}:root{--es1-font-sans:"Poppins", "SF Pro Text", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--es1-font-display:"Poppins", system-ui, sans-serif;--es1-font-mono:"JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;--es1-bg:#fff;--es1-bg-elevated:#fff;--es1-bg-sunken:#f3f8fc;--es1-bg-muted:#eaf2f8;--es1-fg:#002352;--es1-fg-muted:#526174;--es1-fg-subtle:#63748a;--es1-border:#d8e6f3;--es1-border-strong:#bdd0e3;--es1-accent:#007ab3;--es1-accent-hover:#069;--es1-accent-soft:#e7f5fc;--es1-accent-fg:#fff;--es1-highlight:#d97706;--es1-highlight-soft:#fef3df;--es1-focus:#0099d7;--es1-success:#15803d;--es1-success-soft:#dcfce7;--es1-danger:#b91c1c;--es1-danger-soft:#fee2e2;--es1-info:#1d4ed8;--es1-info-soft:#dbeafe;--es1-radius-sm:6px;--es1-radius-md:10px;--es1-radius-lg:16px;--es1-radius-xl:24px;--es1-shadow-sm:0 1px 2px #0f1a2e0f;--es1-shadow-md:0 4px 14px #0f1a2e14;--es1-shadow-lg:0 12px 32px #0f1a2e1f;--es1-motion-fast:.12s;--es1-motion-base:.2s;--es1-motion-slow:.32s;--es1-ease:cubic-bezier(.2, .8, .2, 1);--es1-max-content:72rem;--es1-reading-width:44rem;--es1-sidebar:18rem;--es1-instructor-panel:22rem;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}:root[data-theme=dark]{--es1-bg:#0c1424;--es1-bg-elevated:#131e33;--es1-bg-sunken:#0a1120;--es1-bg-muted:#1b2842;--es1-fg:#f3f1ec;--es1-fg-muted:#b6bfd3;--es1-fg-subtle:#7f8ba6;--es1-border:#243352;--es1-border-strong:#33466c;--es1-accent:#5cc8f0;--es1-accent-hover:#0099d7;--es1-accent-soft:#082f49;--es1-accent-fg:#002352;--es1-highlight:#f59e0b;--es1-highlight-soft:#3a2a0b;--es1-focus:#5cc8f0;--es1-success-soft:#113a22;--es1-danger-soft:#3f1616;--es1-info-soft:#14244a;--es1-shadow-sm:0 1px 2px #0006;--es1-shadow-md:0 4px 14px #00000073;--es1-shadow-lg:0 12px 32px #00000080;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--es1-bg:#0c1424;--es1-bg-elevated:#131e33;--es1-bg-sunken:#0a1120;--es1-bg-muted:#1b2842;--es1-fg:#f3f1ec;--es1-fg-muted:#b6bfd3;--es1-fg-subtle:#7f8ba6;--es1-border:#243352;--es1-border-strong:#33466c;--es1-accent:#5cc8f0;--es1-accent-hover:#0099d7;--es1-accent-soft:#082f49;--es1-accent-fg:#002352;--es1-highlight:#f59e0b;--es1-highlight-soft:#3a2a0b;--es1-focus:#5cc8f0;--es1-success-soft:#113a22;--es1-danger-soft:#3f1616;--es1-info-soft:#14244a;--es1-shadow-sm:0 1px 2px #0006;--es1-shadow-md:0 4px 14px #00000073;--es1-shadow-lg:0 12px 32px #00000080;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}}@media (prefers-reduced-motion:reduce){:root{--es1-motion-fast:0s;--es1-motion-base:0s;--es1-motion-slow:0s}}html{font-family:var(--es1-font-sans);background:var(--es1-bg);color:var(--es1-fg);-webkit-text-size-adjust:100%}body{margin:0;font-size:1rem;line-height:1.55}*{box-sizing:border-box}a{color:var(--es1-accent);text-underline-offset:3px}:focus-visible{outline:3px solid var(--es1-focus);outline-offset:2px;border-radius:var(--es1-radius-sm)}.es1-sr-only{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.es1-skip-link{background:var(--es1-accent);color:var(--es1-accent-fg);border-radius:var(--es1-radius-sm);z-index:100;transition:top var(--es1-motion-fast) var(--es1-ease);padding:.5rem .75rem;position:absolute;top:-3rem;left:1rem}.es1-skip-link:focus{top:1rem}.es1-display{font-family:var(--es1-font-display);letter-spacing:-.015em;font-weight:600;line-height:1.12}.es1-h1{font-size:clamp(2rem,4vw,3.25rem)}.es1-h2{font-size:clamp(1.5rem,2.6vw,2.125rem)}.es1-h3{font-size:1.375rem}.es1-eyebrow{letter-spacing:.12em;text-transform:uppercase;color:var(--es1-accent);font-size:.75rem;font-weight:700}.es1-muted{color:var(--es1-fg-muted)}.es1-subtle{color:var(--es1-fg-subtle)}.es1-mono{font-family:var(--es1-font-mono);font-size:.9em}.es1-wordmark{font-family:var(--es1-font-display);letter-spacing:-.02em;color:var(--es1-fg);align-items:baseline;gap:.35rem;font-weight:700;text-decoration:none;display:inline-flex}.es1-wordmark__one{color:var(--es1-accent);position:relative}.es1-wordmark__one:after{content:"";background:var(--es1-highlight);border-radius:2px;height:3px;position:absolute;bottom:-.12em;left:0;right:0}.es1-btn{border-radius:var(--es1-radius-md);min-height:2.75rem;font:inherit;cursor:pointer;transition:background var(--es1-motion-fast) var(--es1-ease), transform var(--es1-motion-fast) var(--es1-ease), box-shadow var(--es1-motion-fast) var(--es1-ease);border:1px solid #0000;justify-content:center;align-items:center;gap:.5rem;padding:0 1.1rem;font-weight:600;text-decoration:none;display:inline-flex}.es1-btn:active{transform:translateY(1px)}.es1-btn:disabled,.es1-btn[aria-disabled=true]{opacity:.55;cursor:not-allowed;transform:none}.es1-btn--primary{background:var(--es1-accent);color:var(--es1-accent-fg);box-shadow:var(--es1-shadow-sm)}.es1-btn--primary:hover:not(:disabled){background:var(--es1-accent-hover)}.es1-btn--secondary{background:var(--es1-bg-elevated);color:var(--es1-fg);border-color:var(--es1-border-strong)}.es1-btn--secondary:hover:not(:disabled){background:var(--es1-bg-sunken)}.es1-btn--ghost{color:var(--es1-fg-muted);background:0 0}.es1-btn--ghost:hover:not(:disabled){background:var(--es1-bg-muted);color:var(--es1-fg)}.es1-btn--danger{background:var(--es1-danger);color:#fff}.es1-btn--lg{border-radius:var(--es1-radius-lg);min-height:3.25rem;padding:0 1.5rem;font-size:1.05rem}.es1-btn--sm{min-height:2.25rem;padding:0 .8rem;font-size:.875rem}.es1-btn--block{width:100%}.es1-card{background:var(--es1-bg-elevated);border:1px solid var(--es1-border);border-radius:var(--es1-radius-lg);box-shadow:var(--es1-shadow-sm)}.es1-card--pad{padding:1.25rem}.es1-card--interactive{transition:box-shadow var(--es1-motion-base) var(--es1-ease), transform var(--es1-motion-base) var(--es1-ease)}.es1-card--interactive:hover{box-shadow:var(--es1-shadow-md);transform:translateY(-1px)}.es1-panel{background:var(--es1-bg-sunken);border-radius:var(--es1-radius-lg);padding:1.25rem}.es1-pill{border-radius:var(--es1-radius-full);letter-spacing:.02em;white-space:nowrap;align-items:center;gap:.35rem;padding:.2rem .6rem;font-size:.75rem;font-weight:700;display:inline-flex}.es1-pill--neutral{background:var(--es1-bg-muted);color:var(--es1-fg-muted)}.es1-pill--accent{background:var(--es1-accent-soft);color:var(--es1-accent)}.es1-pill--highlight{background:var(--es1-highlight-soft);color:var(--es1-highlight)}.es1-pill--success{background:var(--es1-success-soft);color:var(--es1-success)}.es1-pill--danger{background:var(--es1-danger-soft);color:var(--es1-danger)}.es1-pill--info{background:var(--es1-info-soft);color:var(--es1-info)}.es1-pill__dot{background:currentColor;border-radius:50%;width:.5rem;height:.5rem}.es1-field{flex-direction:column;gap:.4rem;display:flex}.es1-label{font-size:.9rem;font-weight:600}.es1-hint{color:var(--es1-fg-subtle);font-size:.85rem}.es1-input,.es1-select,.es1-textarea{font:inherit;border-radius:var(--es1-radius-md);border:1px solid var(--es1-border-strong);background:var(--es1-bg-elevated);color:var(--es1-fg);width:100%;min-height:2.75rem;padding:.7rem .85rem}.es1-textarea{resize:vertical;min-height:7rem;line-height:1.5}.es1-input:focus,.es1-select:focus,.es1-textarea:focus{border-color:var(--es1-accent);outline:3px solid var(--es1-focus)}@supports (color:color-mix(in lab, red, red)){.es1-input:focus,.es1-select:focus,.es1-textarea:focus{outline:3px solid color-mix(in srgb, var(--es1-focus) 30%, transparent)}}.es1-input:focus,.es1-select:focus,.es1-textarea:focus{outline-offset:0}.es1-input[aria-invalid=true]{border-color:var(--es1-danger)}.es1-error{color:var(--es1-danger);font-size:.875rem}.es1-choice{border:1px solid var(--es1-border-strong);border-radius:var(--es1-radius-md);background:var(--es1-bg-elevated);cursor:pointer;transition:border-color var(--es1-motion-fast);align-items:flex-start;gap:.75rem;padding:.85rem 1rem;display:flex}.es1-choice:hover{border-color:var(--es1-accent)}.es1-choice:has(input:checked){border-color:var(--es1-accent);background:var(--es1-accent-soft)}.es1-choice input{accent-color:var(--es1-accent);margin-top:.25rem}.es1-alert{border-radius:var(--es1-radius-md);border:1px solid var(--es1-border);background:var(--es1-bg-sunken);gap:.75rem;padding:1rem 1.1rem;display:flex}.es1-alert--info{background:var(--es1-info-soft);border-color:#0000}.es1-alert--warn{background:var(--es1-highlight-soft);border-color:#0000}.es1-alert--danger{background:var(--es1-danger-soft);border-color:#0000}.es1-alert--success{background:var(--es1-success-soft);border-color:#0000}.es1-state{text-align:center;border:1px dashed var(--es1-border-strong);border-radius:var(--es1-radius-lg);color:var(--es1-fg-muted);padding:3rem 1.5rem}.es1-state__icon{margin-bottom:.5rem;font-size:2rem}.es1-skeleton{background:var(--es1-bg-muted);border-radius:var(--es1-radius-md);min-height:1rem;position:relative;overflow:hidden}.es1-skeleton:after{content:"";background:linear-gradient(90deg,#0000,#ffffff59,#0000);animation:1.4s infinite es1-shimmer;position:absolute;inset:0;transform:translate(-100%)}@keyframes es1-shimmer{to{transform:translate(100%)}}@media (prefers-reduced-motion:reduce){.es1-skeleton:after{animation:none}}.es1-progress{background:var(--es1-bg-muted);border-radius:var(--es1-radius-full);height:.55rem;overflow:hidden}.es1-progress__bar{background:var(--es1-accent);border-radius:inherit;height:100%;transition:width var(--es1-motion-slow) var(--es1-ease)}.es1-progress--highlight .es1-progress__bar{background:var(--es1-highlight)}.es1-timeline{margin:0;padding:0;list-style:none}.es1-timeline__module{padding:.75rem 0}.es1-timeline__module-head{border-radius:var(--es1-radius-sm);color:var(--es1-fg-muted);justify-content:space-between;align-items:center;gap:.5rem;padding:.35rem .5rem;font-size:.9rem;font-weight:700;display:flex}.es1-timeline__lesson{border-radius:var(--es1-radius-md);color:var(--es1-fg);align-items:center;gap:.6rem;padding:.5rem .5rem .5rem .75rem;font-size:.95rem;text-decoration:none;display:flex;position:relative}.es1-timeline__lesson:hover{background:var(--es1-bg-muted)}.es1-timeline__lesson[aria-current=page]{background:var(--es1-accent-soft);color:var(--es1-accent);font-weight:600}.es1-timeline__lesson--locked{color:var(--es1-fg-subtle)}.es1-timeline__mark{border:2px solid var(--es1-border-strong);border-radius:50%;flex:none;justify-content:center;align-items:center;width:1.1rem;height:1.1rem;font-size:.65rem;display:inline-flex}.es1-timeline__mark--done{background:var(--es1-accent);border-color:var(--es1-accent);color:var(--es1-accent-fg)}.es1-timeline__mark--active{border-color:var(--es1-accent);box-shadow:0 0 0 3px var(--es1-accent-soft)}.es1-lesson{max-width:var(--es1-reading-width);margin:0 auto;font-size:1.05rem;line-height:1.7}.es1-lesson h2{font-family:var(--es1-font-display);letter-spacing:-.01em;margin:2.25rem 0 .75rem;font-size:1.5rem}.es1-lesson p{margin:0 0 1.1rem}.es1-lesson ul{padding-left:1.3rem}.es1-lesson li{margin-bottom:.4rem}.es1-callout{border-left:4px solid var(--es1-highlight);background:var(--es1-highlight-soft);border-radius:0 var(--es1-radius-md) var(--es1-radius-md) 0;margin:0 0 1.25rem;padding:.9rem 1.1rem}.es1-callout__title{margin-bottom:.25rem;font-size:.95rem;font-weight:700}.es1-example{border:1px solid var(--es1-border);border-radius:var(--es1-radius-lg);background:var(--es1-bg-elevated);margin:0 0 1.25rem;overflow:hidden}.es1-example__head{background:var(--es1-bg-sunken);border-bottom:1px solid var(--es1-border);justify-content:space-between;padding:.6rem 1rem;font-size:.9rem;font-weight:700;display:flex}.es1-example__body{padding:.9rem 1rem}.es1-code{background:var(--es1-bg-sunken);border:1px solid var(--es1-border);border-radius:var(--es1-radius-md);font-family:var(--es1-font-mono);white-space:pre;margin:0 0 1.25rem;padding:.9rem 1rem;font-size:.9rem;line-height:1.55;overflow-x:auto}.es1-check{border:1px solid var(--es1-border-strong);border-radius:var(--es1-radius-lg);background:var(--es1-bg-elevated);margin:0 0 1.25rem;padding:1.1rem 1.25rem}.es1-check__title{align-items:center;gap:.5rem;margin-bottom:.6rem;font-weight:700;display:flex}.es1-check__options{gap:.5rem;margin:.75rem 0;display:grid}.es1-practice{border:1px dashed var(--es1-accent);background:var(--es1-accent-soft);border-radius:var(--es1-radius-lg);margin:0 0 1.25rem;padding:1.1rem 1.25rem}.es1-practice__title{color:var(--es1-accent);margin-bottom:.5rem;font-weight:700}.es1-citations{flex-wrap:wrap;gap:.4rem;margin-top:.5rem;display:flex}.es1-citation{border-radius:var(--es1-radius-full);background:var(--es1-bg-muted);color:var(--es1-fg-muted);border:1px solid var(--es1-border);padding:.2rem .55rem;font-size:.78rem;text-decoration:none}.es1-citation:hover{border-color:var(--es1-accent);color:var(--es1-accent)}.es1-msg{gap:.65rem;max-width:100%;margin-bottom:.9rem;display:flex}.es1-msg--learner{flex-direction:row-reverse}.es1-msg__avatar{background:var(--es1-accent);width:1.9rem;height:1.9rem;color:var(--es1-accent-fg);border-radius:50%;flex:none;justify-content:center;align-items:center;font-size:.75rem;font-weight:800;display:inline-flex}.es1-msg--learner .es1-msg__avatar{background:var(--es1-bg-muted);color:var(--es1-fg-muted)}.es1-msg__bubble{border-radius:var(--es1-radius-lg);background:var(--es1-bg-sunken);white-space:pre-wrap;max-width:88%;padding:.75rem .95rem;font-size:.95rem;line-height:1.55}.es1-msg--learner .es1-msg__bubble{background:var(--es1-accent-soft)}.es1-msg--system .es1-msg__bubble{border:1px dashed var(--es1-border-strong);color:var(--es1-fg-muted);background:0 0;font-size:.85rem}.es1-msg__meta{color:var(--es1-fg-subtle);margin-top:.3rem;font-size:.72rem}.es1-quick{flex-wrap:wrap;gap:.4rem;display:flex}.es1-quick .es1-btn{border-radius:var(--es1-radius-full);min-height:2.1rem;padding:0 .7rem;font-size:.8rem}.es1-typing{gap:.25rem;display:inline-flex}.es1-typing span{background:var(--es1-fg-subtle);border-radius:50%;width:.4rem;height:.4rem;animation:1.2s infinite es1-bounce}.es1-typing span:nth-child(2){animation-delay:.15s}.es1-typing span:nth-child(3){animation-delay:.3s}@keyframes es1-bounce{0%,80%,to{opacity:.5;transform:translateY(0)}40%{opacity:1;transform:translateY(-3px)}}@media (prefers-reduced-motion:reduce){.es1-typing span{animation:none}}.es1-feedback{border:1px solid var(--es1-border);border-radius:var(--es1-radius-lg);overflow:hidden}.es1-feedback__row{border-top:1px solid var(--es1-border);justify-content:space-between;gap:1rem;padding:.75rem 1rem;font-size:.92rem;display:flex}.es1-feedback__row:first-child{border-top:0}.es1-feedback__score{font-family:var(--es1-font-display);font-size:2rem;font-weight:700}.es1-steps{counter-reset:s;gap:0;margin:0;padding:0;list-style:none;display:flex}.es1-steps li{text-align:center;color:var(--es1-fg-subtle);flex:1;padding-top:1.6rem;font-size:.8rem;position:relative}.es1-steps li:before{content:"";background:var(--es1-border-strong);height:2px;position:absolute;top:.55rem;left:0;right:0}.es1-steps li:after{counter-increment:s;content:counter(s);background:var(--es1-bg-elevated);border:2px solid var(--es1-border-strong);border-radius:50%;justify-content:center;align-items:center;width:1.2rem;height:1.2rem;font-size:.65rem;font-weight:700;display:flex;position:absolute;top:0;left:50%;transform:translate(-50%)}.es1-steps li.is-done{color:var(--es1-fg-muted)}.es1-steps li.is-done:before,.es1-steps li.is-done:after{background:var(--es1-accent);border-color:var(--es1-accent);color:var(--es1-accent-fg)}.es1-steps li.is-current{color:var(--es1-fg);font-weight:700}.es1-steps li.is-current:after{border-color:var(--es1-highlight);box-shadow:0 0 0 3px var(--es1-highlight-soft)}.es1-session{grid-template-columns:4.5rem 1fr auto;align-items:center;gap:1rem;display:grid}.es1-session__date{text-align:center;background:var(--es1-bg-sunken);border-radius:var(--es1-radius-md);padding:.5rem .25rem}.es1-session__day{font-family:var(--es1-font-display);font-size:1.6rem;font-weight:700;line-height:1}.es1-session__mon{text-transform:uppercase;letter-spacing:.08em;color:var(--es1-fg-muted);font-size:.7rem}@media (max-width:640px){.es1-session{grid-template-columns:4rem 1fr}.es1-session>:last-child{grid-column:1/-1}}.es1-notif{border-radius:var(--es1-radius-md);border:1px solid var(--es1-border);background:var(--es1-bg-elevated);gap:.75rem;padding:.85rem 1rem;display:flex}.es1-notif--unread{border-left:3px solid var(--es1-accent)}.es1-table{border-collapse:collapse;width:100%;font-size:.9rem}.es1-table th{text-align:left;letter-spacing:.06em;text-transform:uppercase;color:var(--es1-fg-subtle);border-bottom:1px solid var(--es1-border-strong);padding:.6rem .75rem;font-size:.75rem}.es1-table td{border-bottom:1px solid var(--es1-border);vertical-align:top;padding:.7rem .75rem}.es1-table tr:hover td{background:var(--es1-bg-sunken)}@font-face{font-family:Poppins;src:url(/brand/poppins-regular.woff2)format("woff2");font-weight:400;font-display:swap}@font-face{font-family:Poppins;src:url(/brand/poppins-semibold.woff2)format("woff2");font-weight:500 800;font-display:swap}.es1-wordmark{flex-shrink:0;align-items:center;gap:10px}.es1-brand-logo{object-fit:contain;width:auto;height:40px}.es1-wordmark__one{font-family:var(--es1-font-sans);text-transform:uppercase;letter-spacing:.1em;border-left:1px solid var(--es1-border-strong);padding-left:10px;font-size:17px}.es1-wordmark__one:after{display:none}.es1-display{font-weight:700}@media (max-width:600px){.es1-brand-logo{height:30px}.es1-wordmark__one{font-size:14px}}:root[data-theme=dark] .es1-brand-logo{background:#fff;border-radius:4px;padding:3px}.page{max-width:var(--es1-max-content);margin:0 auto;padding:0 1.25rem}.hero-grid{grid-template-columns:1.15fr 1fr;align-items:center;gap:3rem;display:grid}@media (max-width:900px){.hero-grid{grid-template-columns:1fr;gap:2rem}}.workspace{--es1-instructor-panel:390px;grid-template-columns:var(--es1-sidebar) minmax(0, 1fr) var(--es1-instructor-panel);min-height:calc(100vh - 3.5rem);display:grid}.workspace--outline-collapsed{grid-template-columns:3rem minmax(0, 1fr) var(--es1-instructor-panel)}.workspace--focus{grid-template-columns:var(--es1-sidebar) minmax(0, 1fr) 3rem}.workspace--outline-collapsed.workspace--focus{grid-template-columns:3rem minmax(0,1fr) 3rem}.workspace__outline{border-right:1px solid var(--es1-border);background:var(--es1-bg-sunken);height:calc(100vh - 3.5rem);position:sticky;top:3.5rem;overflow-y:auto}.workspace__canvas{min-width:0;padding:2rem 2rem 7rem}.workspace__instructor{border-left:1px solid var(--es1-border);background:var(--es1-bg-elevated);flex-direction:column;height:calc(100vh - 3.5rem);display:flex;position:sticky;top:3.5rem}.workspace__actions{background:var(--es1-bg);position:sticky;bottom:0}@supports (color:color-mix(in lab, red, red)){.workspace__actions{background:color-mix(in srgb, var(--es1-bg) 88%, transparent)}}.workspace__actions{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-top:1px solid var(--es1-border);flex-wrap:wrap;justify-content:center;gap:.5rem;padding:.75rem 1rem;display:flex}@media (max-width:1100px){.workspace,.workspace--outline-collapsed,.workspace--focus{grid-template-columns:1fr}.workspace__outline{border:0;border-bottom:1px solid var(--es1-border);height:auto;position:static}.workspace__instructor{display:none}.workspace__instructor.is-open{z-index:45;height:auto;box-shadow:var(--es1-shadow-lg);border-radius:var(--es1-radius-xl) var(--es1-radius-xl) 0 0;padding-bottom:env(safe-area-inset-bottom,0px);border:0;display:flex;position:fixed;inset:3.5rem 0 0}.workspace__canvas{padding:1.25rem 1rem 7rem}.workspace__actions{z-index:35}}@media (max-width:760px){.workspace__actions{bottom:calc(3.4rem + env(safe-area-inset-bottom,0px))}}.appnav{z-index:30;background:var(--es1-bg);align-items:center;gap:1rem;height:3.5rem;padding:0 1.25rem;display:flex;position:sticky;top:0}@supports (color:color-mix(in lab, red, red)){.appnav{background:color-mix(in srgb, var(--es1-bg) 92%, transparent)}}.appnav{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--es1-border)}.appnav__links{gap:.25rem;margin-left:1rem;display:flex}.appnav__link{border-radius:var(--es1-radius-md);color:var(--es1-fg-muted);padding:.45rem .75rem;font-size:.95rem;font-weight:500;text-decoration:none}.appnav__link:hover{background:var(--es1-bg-muted);color:var(--es1-fg)}.appnav__link[aria-current=page]{background:var(--es1-accent-soft);color:var(--es1-accent);font-weight:600}.bottomnav{display:none}@media (max-width:760px){.appnav__links{display:none}.bottomnav{z-index:30;background:var(--es1-bg-elevated);border-top:1px solid var(--es1-border);padding-bottom:env(safe-area-inset-bottom,0px);grid-template-columns:repeat(5,1fr);display:grid;position:fixed;bottom:0;left:0;right:0}.bottomnav a{color:var(--es1-fg-muted);flex-direction:column;align-items:center;gap:.15rem;padding:.55rem 0 .4rem;font-size:.68rem;text-decoration:none;display:flex}.bottomnav a[aria-current=page]{color:var(--es1-accent);font-weight:700}.bottomnav span:first-child{font-size:1.15rem}main.app-main{padding-bottom:5rem}}.brand-container{max-width:1280px;margin-inline:auto;padding-inline:32px}.brand-header{z-index:40;background:var(--es1-bg-elevated);position:sticky;top:0;box-shadow:0 1px 5px #00235212}.brand-header__row{align-items:center;gap:20px;height:80px;display:flex}.brand-navigation{align-items:center;gap:4px;margin-left:auto;display:flex}.brand-navigation .appnav__link{color:var(--es1-fg);padding:8px;font-size:13px}.brand-menu{display:none}.brand-hero{background:#002352;align-items:center;min-height:560px;display:flex;position:relative;overflow:hidden}.brand-hero__image{object-fit:cover;width:65%;height:100%;position:absolute;top:0;right:0}.brand-hero__shade{background:linear-gradient(90deg,#002352 32%,#002352dc 51%,#00235222 85%);position:absolute;inset:0}.brand-hero__content{width:100%;padding-block:65px;position:relative}.brand-kicker{letter-spacing:.15em;color:var(--es1-accent);margin:0 0 16px;font-size:12px;font-weight:600}.brand-hero .brand-kicker{color:#a7dff7}.brand-hero h1{color:#fff;letter-spacing:-.025em;max-width:680px;margin:0 0 24px;font-size:clamp(36px,4.4vw,60px);font-weight:700;line-height:1.1}.brand-hero h1 span{color:#5cc8f0}.brand-hero__description{color:#c4d3e8;max-width:540px;margin:0;font-size:17px;line-height:1.8}.brand-actions{flex-wrap:wrap;align-items:center;gap:24px;margin-top:30px;display:flex}.brand-white-button.es1-btn{color:#002352;background:#fff;border-radius:8px;font-size:15px}.brand-white-button.es1-btn:hover{background:#e7f5fc}.brand-hero__link{color:#fff;text-underline-offset:5px;font-size:14px}.brand-intro{background:linear-gradient(#f3f8fc,var(--es1-bg));padding:40px 0}.brand-intro__panel{border:1px solid var(--es1-border);background:var(--es1-bg-elevated);border-radius:16px;justify-content:space-between;align-items:center;gap:40px;padding:32px;display:flex;box-shadow:0 16px 40px #00235214}.brand-intro__panel>div{max-width:800px}.brand-intro__panel>.es1-btn{flex-shrink:0}.brand-intro h2,.brand-section h2{letter-spacing:-.02em;margin:0 0 16px;font-size:30px;font-weight:700;line-height:1.35}.brand-intro p:last-child,.brand-section p{color:var(--es1-fg-muted);font-size:15px;line-height:1.8}.brand-section{padding-block:64px}.brand-section__intro{max-width:780px;margin-bottom:32px}.brand-area-grid{grid-template-columns:repeat(4,1fr);gap:20px;display:grid}.brand-area{border:1px solid var(--es1-border);color:var(--es1-fg);border-radius:12px;flex-direction:column;padding:28px 24px;text-decoration:none;transition:box-shadow .2s,border-color .2s;display:flex;box-shadow:0 4px 20px #00235206}.brand-area:hover{border-color:#0099d7;box-shadow:0 12px 24px #00235212}.brand-area__number{background:var(--es1-accent-soft);width:44px;height:44px;color:var(--es1-accent);border-radius:10px;place-items:center;margin-bottom:18px;font-size:16px;font-weight:600;display:grid}.brand-area h3,.brand-step-grid h3{margin:0 0 10px;font-size:19px;font-weight:600;line-height:1.45}.brand-area p{margin:0 0 22px;font-size:14px}.brand-area__link{color:var(--es1-accent);justify-content:space-between;gap:8px;margin-top:auto;font-size:12px;font-weight:600;display:flex}.brand-process{background:var(--es1-bg-sunken)}.brand-step-grid{grid-template-columns:repeat(3,1fr);gap:48px;margin-top:36px;display:grid}.brand-step-number{color:var(--es1-accent);margin-bottom:16px;font-size:32px;font-weight:600;display:block}.brand-example{grid-template-columns:1fr 1fr;align-items:center;gap:64px;display:grid}.brand-example__card{border:1px solid var(--es1-border);background:var(--es1-bg-elevated);border-radius:16px;padding:32px;box-shadow:0 12px 32px #00235210}.brand-example__card h3{font-size:23px;font-weight:600;line-height:1.4}.brand-example__card ol{color:var(--es1-fg-muted);padding-left:22px;font-size:14px;line-height:1.8;list-style:decimal}.brand-example__card li{margin-bottom:12px}.brand-example__note{background:var(--es1-accent-soft);color:var(--es1-accent);border-radius:8px;padding:16px;font-size:13px}.brand-cta{text-align:center;color:#fff;background:#002352;padding:80px 24px}.brand-cta h2{margin:0 0 20px;font-size:clamp(30px,4vw,44px);font-weight:700;line-height:1.2}.brand-cta p{color:#c4d3e8;max-width:600px;margin:0 auto 28px}.brand-footer{color:#fff;background:#0f172a;margin-top:0!important;padding-block:60px!important}.brand-footer .es1-muted,.brand-footer .es1-subtle{color:#cbd5e1}.brand-footer .es1-brand-logo{background:#fff;border-radius:4px;padding:4px}.brand-footer .es1-wordmark__one{color:#5cc8f0}@media (max-width:1100px){.brand-navigation{background:var(--es1-bg-elevated);padding:20px;display:none;position:absolute;top:80px;left:0;right:0;box-shadow:0 8px 12px #00235214}.brand-navigation.is-open{flex-wrap:wrap;display:flex}.brand-menu{border:1px solid var(--es1-border);background:var(--es1-bg-elevated);font:inherit;color:var(--es1-fg);border-radius:8px;padding:8px;font-size:12px;display:block}.brand-area-grid{grid-template-columns:repeat(2,1fr)}.brand-intro__panel{flex-direction:column;align-items:flex-start;gap:12px}}@media (max-width:650px){.brand-container{padding-inline:20px}.brand-header__row{gap:8px;height:72px}.brand-header .es1-btn{padding:0 9px;font-size:11px}.brand-header .appnav__link{padding:4px;font-size:11px}.brand-header .es1-wordmark__one{padding-left:6px;display:inline}.brand-header .es1-wordmark{gap:6px}.brand-header .es1-brand-logo{height:26px}.brand-navigation{top:72px}.brand-hero{min-height:565px}.brand-hero__content{padding-block:48px}.brand-hero__image{opacity:.35;width:100%}.brand-hero__shade{background:linear-gradient(90deg,#002352ee,#00235299)}.brand-hero h1{font-size:40px}.brand-hero__description{font-size:16px}.brand-actions{gap:20px}.brand-intro__panel{padding:24px}.brand-intro h2,.brand-section h2{font-size:26px}.brand-area-grid,.brand-step-grid,.brand-example{grid-template-columns:1fr;gap:24px}.brand-section{padding-block:44px}.brand-area{padding:24px}.brand-area h3{font-size:20px}.brand-example__card{padding:24px}.brand-kicker{font-size:10px}}.teacher-controls{border-bottom:1px solid var(--es1-border);margin-bottom:16px;padding-bottom:14px;font-size:12px}.teacher-controls__status{color:var(--es1-accent);margin-bottom:10px;font-weight:600}.teacher-controls summary{cursor:pointer;padding:8px 0;font-weight:600}.teacher-controls label{gap:5px;margin-bottom:10px;display:grid}.teacher-controls select{background:var(--es1-bg-elevated);border:1px solid var(--es1-border-strong);color:var(--es1-fg);font:inherit;border-radius:8px;padding:8px}.teacher-controls p{color:var(--es1-fg-muted);margin:8px 0;font-size:12px;line-height:1.65}.teacher-next-step{background:var(--es1-accent-soft);border-radius:10px;margin:12px 0;padding:12px}.teacher-controls small{color:var(--es1-fg-muted);font-size:10px;line-height:1.6;display:block}.voice-teacher{border:1px solid var(--es1-border-strong);background:var(--es1-bg-sunken);border-radius:12px;margin-top:10px;padding:12px}.voice-teacher__title{justify-content:space-between;align-items:center;gap:8px;display:flex}.voice-teacher__title>span{color:var(--es1-accent);white-space:nowrap;font-size:9px}.voice-teacher label.voice-teacher__consent{align-items:flex-start;gap:8px;margin:12px 0;font-size:11px;line-height:1.6;display:flex}.voice-teacher__consent input{accent-color:var(--es1-accent);flex-shrink:0;margin-top:4px}.voice-teacher__buttons{flex-wrap:wrap;gap:6px;margin-top:12px;display:flex}.voice-teacher__buttons .es1-btn{font-size:11px}.voice-teacher__captions{overflow-wrap:anywhere;max-height:230px;overflow:auto}.voice-teacher__captions p{border-bottom:1px solid var(--es1-border);padding-bottom:8px}.workspace__instructor>.teacher-controls{flex-shrink:0;max-height:45%;margin:0 .9rem 8px;padding-top:8px;overflow-y:auto}.workspace__instructor{min-height:0}.teaching-lab{border:1px solid var(--es1-border);background:var(--es1-accent-soft);border-radius:16px;margin-bottom:2rem;padding:1.25rem}.teaching-lab h2{font-size:1.4rem}.teaching-lab__stages{grid-template-columns:repeat(2,minmax(0,1fr));gap:.5rem;padding:0;list-style:none;display:grid}.teaching-lab__stages button{text-align:left;background:var(--es1-bg-elevated);width:100%;color:var(--es1-fg);border:1px solid var(--es1-border);cursor:pointer;font:inherit;border-radius:9px;padding:.7rem;font-size:.9rem}.teaching-lab__stages button[aria-current]{border:2px solid var(--es1-accent);font-weight:700}.teaching-lab__stages span{color:var(--es1-accent);margin-right:.6rem}.teaching-lab details{margin-top:1rem}.teaching-lab summary{cursor:pointer;font-weight:600}.teaching-lab__buttons{flex-wrap:wrap;align-items:center;gap:.7rem;margin:1rem 0;display:flex}.teaching-lab__buttons input{max-width:100%;margin-top:.5rem;display:block}.teaching-lab__consent{align-items:flex-start;gap:.6rem;display:flex}.teaching-lab table{border-collapse:collapse;width:100%;font-size:.9rem}.teaching-lab td,.teaching-lab th{text-align:left;border-bottom:1px solid var(--es1-border);padding:.5rem}.teaching-lab pre{white-space:pre-wrap;overflow-wrap:anywhere}.teaching-lab small{display:block}@media (max-width:600px){.teaching-lab__stages{grid-template-columns:1fr}}.teaching-lab__consent input{width:20px;height:20px;accent-color:var(--es1-accent);flex:0 0 20px;margin-top:4px;scroll-margin-block:6rem}.teaching-lab button,.teaching-lab summary{scroll-margin-top:5rem;scroll-margin-bottom:9rem}@media (max-width:700px){.workspace__actions{flex-wrap:nowrap;justify-content:flex-start;overflow-x:auto}.workspace__actions>*{flex-shrink:0}.teaching-lab__consent{font-size:.9rem}}.teaching-lab__focus{background:var(--es1-bg-elevated);border-left:4px solid var(--es1-accent);border-radius:12px;margin-top:1rem;padding:1.25rem}.teaching-lab__focus h3{margin:.5rem 0;font-size:1.15rem}.workspace__instructor>.teacher-controls--voice-active{flex:1 0 auto;max-height:80%}.teacher-controls--voice-active .voice-teacher__captions{max-height:38vh}.course-welcome{border:1px solid var(--es1-border);background:var(--es1-bg-elevated);border-radius:16px;margin-bottom:1.5rem;padding:1.5rem}.course-welcome h2{margin:.5rem 0 1rem;font-size:1.4rem;line-height:1.3}.course-welcome h3{margin:.75rem 0;font-size:1.05rem}.course-welcome p,.course-welcome li{line-height:1.65}.course-welcome ul,.course-welcome ol{padding-left:1.4rem}.course-welcome li{margin:.4rem 0}.course-welcome summary{cursor:pointer;color:var(--es1-accent);padding:.6rem 0;font-weight:600}.course-welcome__chapter{background:var(--es1-accent-soft);border-radius:12px;margin:1rem 0;padding:1rem}.course-welcome small{color:var(--es1-fg-muted);line-height:1.6;display:block}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}