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:root{--kp-navy-950:#0a1224;--kp-navy-900:#0f1b33;--kp-navy-800:#1a2a4a;--kp-navy-700:#283b60;--kp-navy-600:#3a4f78;--kp-navy-500:#56698f;--kp-navy-400:#7a8aa8;--kp-navy-300:#a5b1c6;--kp-navy-200:#cbd3e0;--kp-navy-100:#e4e8ef;--kp-navy-50:#f2f4f8;--kp-emerald-900:#064a35;--kp-emerald-800:#086044;--kp-emerald-700:#0b7a57;--kp-emerald-600:#0e9168;--kp-emerald-500:#12a877;--kp-emerald-400:#3dc393;--kp-emerald-300:#7ed9b5;--kp-emerald-200:#b6ebd5;--kp-emerald-100:#ddf6eb;--kp-emerald-50:#f0fbf6;--kp-gray-0:#fff;--kp-gray-25:#f9fafb;--kp-gray-50:#f6f7f9;--kp-gray-100:#eef1f5;--kp-gray-200:#dde2ea;--kp-gray-300:#c3cad6;--kp-gray-400:#8792a6;--kp-gray-500:#5e6a80;--kp-gray-600:#3d4a63;--kp-amber-700:#8a5f0e;--kp-amber-100:#fbf5e6;--kp-amber-300:#e3c889;--kp-orange-700:#9a4f14;--kp-orange-100:#fbeee3;--kp-orange-300:#e9c3a3;--kp-red-700:#a32d2d;--kp-red-100:#fbefef;--kp-red-300:#e8b7b7;--bg-page:#eaeff5;--bg-topbar:var(--kp-navy-900);--surface-card:var(--kp-gray-0);--surface-subtle:var(--kp-navy-50);--surface-hover:var(--kp-navy-50);--surface-selected:var(--kp-emerald-100);--surface-control:var(--kp-navy-50);--border-control:var(--kp-navy-200);--surface-sunken:var(--kp-navy-100);--surface-inverse:var(--kp-navy-900);--surface-accent-soft:var(--kp-emerald-50);--backdrop:#0a122473;--border-1:#d6dde8;--border-2:var(--kp-gray-300);--border-input:var(--kp-gray-300);--border-strong:var(--kp-navy-900);--text-1:var(--kp-navy-900);--text-2:var(--kp-gray-600);--text-3:var(--kp-gray-500);--text-placeholder:var(--kp-gray-400);--text-on-dark:#fff;--text-on-dark-2:var(--kp-navy-200);--text-link:var(--kp-emerald-700);--text-link-hover:var(--kp-emerald-800);--text-accent:var(--kp-emerald-700);--text-danger:var(--kp-red-700);--action-primary:var(--kp-navy-900);--action-primary-hover:var(--kp-navy-800);--action-primary-press:var(--kp-navy-950);--action-primary-fg:#fff;--action-accent:var(--kp-emerald-500);--action-accent-hover:var(--kp-emerald-600);--focus-ring:var(--kp-emerald-500);--chevron-color:var(--kp-emerald-600);--state-waiting:var(--kp-gray-500);--state-draft:var(--kp-amber-700);--state-review:var(--kp-orange-700);--state-changes:var(--kp-red-700);--state-approved:var(--kp-navy-600);--state-published:var(--kp-emerald-700);--badge-neutral-fg:var(--kp-gray-500);--badge-neutral-bg:var(--kp-gray-100);--badge-neutral-border:var(--kp-gray-300);--badge-open-fg:var(--kp-emerald-700);--badge-open-bg:var(--kp-emerald-100);--badge-open-border:var(--kp-emerald-300);--badge-scheduled-fg:var(--kp-amber-700);--badge-scheduled-bg:var(--kp-amber-100);--badge-scheduled-border:var(--kp-amber-300);--badge-danger-fg:var(--kp-red-700);--badge-danger-bg:var(--kp-red-100);--badge-danger-border:var(--kp-red-300);--badge-info-fg:var(--kp-navy-700);--badge-info-bg:var(--kp-navy-50);--badge-info-border:var(--kp-navy-200);--font-sans:var(--font-sora), 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72px);--reader-max:800px;--radius-xs:3px;--radius-sm:5px;--radius-md:8px;--radius-lg:10px;--radius-xl:12px;--radius-2xl:16px;--radius-pill:999px;--shadow-thumb:0 2px 6px #0f1b3321;--shadow-tip:0 6px 20px #0f1b331f;--shadow-popover:0 8px 30px #0f1b3324;--shadow-dialog:0 24px 80px #0f1b3338;--shadow-card-hover:0 6px 18px #0f1b3314;--focus-outline:3px solid var(--focus-ring);--focus-offset:3px;--ease-standard:cubic-bezier(.2, 0, 0, 1);--duration-fast:.12s;--duration-base:.15s}:root[data-theme=dark]{--bg-page:var(--kp-navy-950);--bg-topbar:var(--kp-navy-900);--surface-card:var(--kp-navy-900);--surface-subtle:var(--kp-navy-800);--surface-hover:var(--kp-navy-800);--surface-selected:var(--kp-emerald-900);--surface-control:var(--kp-navy-800);--border-control:var(--kp-navy-500);--surface-sunken:var(--kp-navy-950);--surface-inverse:var(--kp-navy-800);--surface-accent-soft:#082e2d;--backdrop:#0009;--border-1:var(--kp-navy-700);--border-2:var(--kp-navy-600);--border-input:var(--kp-navy-400);--border-strong:var(--kp-navy-100);--text-1:var(--kp-navy-50);--text-2:var(--kp-navy-200);--text-3:var(--kp-navy-300);--text-placeholder:var(--kp-navy-400);--text-link:var(--kp-emerald-400);--text-link-hover:var(--kp-emerald-300);--text-accent:var(--kp-emerald-400);--text-danger:var(--kp-red-300);--action-primary:var(--kp-navy-50);--action-primary-hover:var(--kp-gray-0);--action-primary-press:var(--kp-navy-200);--action-primary-fg:var(--kp-navy-950);--action-accent-hover:var(--kp-emerald-400);--focus-ring:var(--kp-emerald-400);--chevron-color:var(--kp-emerald-400);--state-waiting:var(--kp-navy-300);--state-draft:var(--kp-amber-300);--state-review:var(--kp-orange-300);--state-changes:var(--kp-red-300);--state-approved:var(--kp-navy-100);--state-published:var(--kp-emerald-400);--badge-neutral-fg:var(--kp-navy-200);--badge-neutral-bg:var(--kp-navy-800);--badge-neutral-border:var(--kp-navy-600);--badge-open-fg:var(--kp-emerald-300);--badge-open-bg:var(--kp-emerald-900);--badge-open-border:var(--kp-emerald-700);--badge-scheduled-fg:var(--kp-amber-300);--badge-scheduled-bg:#372d1c;--badge-scheduled-border:var(--kp-amber-700);--badge-danger-fg:var(--kp-red-300);--badge-danger-bg:#401b27;--badge-danger-border:var(--kp-red-700);--badge-info-fg:var(--kp-navy-100);--badge-info-bg:var(--kp-navy-700);--badge-info-border:var(--kp-navy-500);--shadow-thumb:0 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input.sheet-label:focus{border-color:var(--kl-gray-alpha-500);background:var(--kl-background-100)}.sheet-actions{z-index:3;gap:4px;display:none;position:absolute;top:-14px;right:-8pt}.sheet-edit-block:hover>.sheet-actions,.sheet-edit-block:focus-within>.sheet-actions{display:inline-flex}.sheet-actions button{min-height:24px;font:12px var(--kl-font-sans);padding:2px 8px}.sheet-actions button.danger{color:var(--kl-red-900);border-color:var(--kl-red-500)}.sheet-answer-edit{border-left:2pt solid var(--kl-green-500);background:var(--kl-green-100);margin:3pt 0 6pt 14.2pt;padding:3pt 8pt;font-size:11pt;font-style:italic}.sheet-answer-edit.not-shown{border-left-color:var(--kl-red-500);background:var(--kl-red-100)}.sheet-answer-edit-head{font:600 11px var(--kl-font-sans);color:var(--kl-green-900);flex-wrap:wrap;align-items:center;gap:12px;font-style:normal;display:flex}.sheet-answer-edit-head label{font:400 11px var(--kl-font-sans);color:var(--kl-gray-1000);white-space:nowrap;align-items:center;gap:4px;display:inline-flex}.sheet-answer-edit-head input[type=checkbox]{width:auto;margin:0;padding:0}.sheet-add-exercise{min-height:28px;font:12px var(--kl-font-sans);margin-top:14pt;padding:2px 10px}.sheet-image-replace input{display:block}
:root{--kl-font-sans:var(--font-geist), Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--kl-font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--kl-cover-spine:#2e2e2e;--kl-cover-spine-mid:#3e3e3e;--kl-cover-face-end:#2c2f30;--kl-logo-green:#12a877;--kl-contrast-fg:#fff;--kl-hero-glow-a:#6ab2f4;--kl-hero-glow-b:#6addf4;--kl-background-100:#fff;--kl-background-200:#fafafa;--kl-gray-100:#f2f2f2;--kl-gray-200:#ebebeb;--kl-gray-300:#e6e6e6;--kl-gray-400:#ebebeb;--kl-gray-500:#c9c9c9;--kl-gray-600:#a8a8a8;--kl-gray-700:#8f8f8f;--kl-gray-800:#7d7d7d;--kl-gray-900:#4d4d4d;--kl-gray-1000:#171717;--kl-gray-alpha-100:#0000000d;--kl-gray-alpha-200:#00000014;--kl-gray-alpha-300:#0000001a;--kl-gray-alpha-400:#00000014;--kl-gray-alpha-500:#00000036;--kl-gray-alpha-600:#00000057;--kl-gray-alpha-700:#00000070;--kl-gray-alpha-800:#00000082;--kl-gray-alpha-900:#000000b3;--kl-gray-alpha-1000:#000000e8;--kl-blue-100:#f0f7ff;--kl-blue-200:#ebf5ff;--kl-blue-300:#e0f0ff;--kl-blue-400:#cce6ff;--kl-blue-500:#99ceff;--kl-blue-600:#52aeff;--kl-blue-700:#0072f5;--kl-blue-800:#0062d1;--kl-blue-900:#0068d6;--kl-blue-1000:#00254d;--kl-red-100:#fff0f0;--kl-red-200:#ffebeb;--kl-red-300:#ffe6e6;--kl-red-400:#fdd8d8;--kl-red-500:#f8b9b9;--kl-red-600:#f87275;--kl-red-700:#e5484d;--kl-red-800:#da2f35;--kl-red-900:#cb2a2f;--kl-red-1000:#391417;--kl-amber-100:#fff6e6;--kl-amber-200:#fff4d6;--kl-amber-300:#fef0cd;--kl-amber-400:#ffdd8f;--kl-amber-500:#ffc96b;--kl-amber-600:#f5b047;--kl-amber-700:#ffb224;--kl-amber-800:#ff990a;--kl-amber-900:#a35200;--kl-amber-1000:#4e2009;--kl-green-100:#effbef;--kl-green-200:#ebfaeb;--kl-green-300:#daf6da;--kl-green-400:#c6f1c7;--kl-green-500:#99e69e;--kl-green-600:#6cda75;--kl-green-700:#45a557;--kl-green-800:#398e4a;--kl-green-900:#297a3a;--kl-green-1000:#1b311e;--kl-teal-100:#eefcf9;--kl-teal-200:#e5faf6;--kl-teal-300:#d4f7f0;--kl-teal-400:#bef4eb;--kl-teal-500:#86ead9;--kl-teal-600:#45dec5;--kl-teal-700:#12a594;--kl-teal-800:#0d8c7d;--kl-teal-900:#067a6e;--kl-teal-1000:#073c34;--kl-purple-100:#f9f0ff;--kl-purple-200:#f9f1fe;--kl-purple-300:#f4e8fc;--kl-purple-400:#eddcf9;--kl-purple-500:#d5b1f1;--kl-purple-600:#bf89ec;--kl-purple-700:#8e4ec6;--kl-purple-800:#763da9;--kl-purple-900:#7820bc;--kl-purple-1000:#2e004d;--kl-pink-100:#ffebf5;--kl-pink-200:#feecf2;--kl-pink-300:#fce3ec;--kl-pink-400:#f9d7e2;--kl-pink-500:#f5b8cc;--kl-pink-600:#ee87a7;--kl-pink-700:#ea3e83;--kl-pink-800:#df2670;--kl-pink-900:#bd2864;--kl-pink-1000:#430a23;--kl-focus-color:var(--kl-blue-700);--kl-link-color:var(--kl-blue-700);--kl-page-bg:var(--kl-background-100);--kl-nav-link:#666;--kl-primary-hover:#383838;--kl-secondary-hover:var(--kl-gray-100);--kl-surface-quiet:#f9fafb;--kl-badge-amber-bg:#fceabb;--kl-badge-green-bg:#d7f5d9;--kl-logo-ink:#0f1b33;--kl-shadow-border:0 0 0 1px #00000014, 0 0 0 1px #fafafa;--kl-shadow-border-small:0 0 0 1px #00000014, 0px 2px 2px #0000000a, 0 0 0 1px #fafafa;--kl-shadow-border-medium:0 0 0 1px #00000014, 0px 2px 2px #0000000a, 0px 8px 8px -8px #0000000a, 0 0 0 1px #fafafa;--kl-shadow-border-large:0 0 0 1px #00000014, 0px 2px 2px #0000000a, 0px 8px 16px -4px #0000000a, 0 0 0 1px #fafafa;--kl-shadow-menu:0 0 0 1px #00000014, 0px 1px 1px #00000005, 0px 4px 8px -4px #0000000a, 0px 16px 24px -8px #0000000f, 0 0 0 1px #fafafa;--kl-focus-ring:0 0 0 2px #fff, 0 0 0 4px #0072f5;--kl-field-focus:0 0 0 1px #00000057, 0 0 0 4px #00000029;--kl-space-1x:4px;--kl-space-2x:8px;--kl-space-3x:12px;--kl-space-4x:16px;--kl-space-6x:24px;--kl-space-8x:32px;--kl-space-10x:40px;--kl-space-16x:64px;--kl-space-24x:96px;--kl-space-32x:128px;--kl-space-gap:24px;--kl-space-gap-half:12px;--kl-radius-xs:2px;--kl-radius-sm:4px;--kl-radius-md:6px;--kl-radius-lg:8px;--kl-radius-xl:12px;--kl-radius-2xl:16px;--kl-radius-drawer:10px;--kl-radius-full:9999px;--kl-control-small:32px;--kl-control-medium:36px;--kl-control-large:40px;--kl-header-height:64px;--kl-course-bar-height:48px;--kl-page-width-learn:961px;--kl-course-bar-width:1072px;--kl-page-width-hub:1152px;--kl-page-width-site:1400px;--kl-featured-card-width:713px;--kl-quiz-card-width:640px;--kl-chapter-menu-width:544px;--kl-text-column:881px;--kl-z-header:1000;--kl-z-course-bar:10;--kl-z-drawer:200;--kl-z-modal:300;--kl-heading-56-font:600 56px/56px var(--kl-font-sans);--kl-heading-56-tracking:-3.36px;--kl-heading-40-font:600 40px/48px var(--kl-font-sans);--kl-heading-40-tracking:-2.4px;--kl-course-title-font:600 40px/48px var(--kl-font-sans);--kl-course-title-tracking:-.93px;--kl-heading-32-font:600 32px/40px var(--kl-font-sans);--kl-heading-32-tracking:-1.28px;--kl-heading-24-font:600 24px/32px var(--kl-font-sans);--kl-heading-24-tracking:-.96px;--kl-heading-20-font:600 20px/26px var(--kl-font-sans);--kl-heading-20-tracking:-.4px;--kl-heading-16-font:600 16px/24px var(--kl-font-sans);--kl-heading-16-tracking:-.32px;--kl-heading-14-font:600 14px/20px var(--kl-font-sans);--kl-heading-14-tracking:-.28px;--kl-copy-24-font:400 24px/36px var(--kl-font-sans);--kl-copy-20-font:400 20px/36px var(--kl-font-sans);--kl-copy-18-font:400 18px/28px var(--kl-font-sans);--kl-copy-16-font:400 16px/24px var(--kl-font-sans);--kl-copy-14-font:400 14px/20px var(--kl-font-sans);--kl-copy-13-font:400 13px/18px var(--kl-font-sans);--kl-copy-14-medium-font:500 14px/20px var(--kl-font-sans);--kl-label-16-medium-font:500 16px/24px var(--kl-font-sans);--kl-label-14-font:400 14px/20px var(--kl-font-sans);--kl-label-13-font:400 13px/16px var(--kl-font-sans);--kl-label-12-font:400 12px/16px var(--kl-font-sans);--kl-button-14-font:500 14px/20px var(--kl-font-sans);--kl-button-12-font:500 12px/16px var(--kl-font-sans);--kl-prose-body-font:400 16px/1.7 var(--kl-font-sans);--kl-prose-h1-font:600 36px/1.2 var(--kl-font-sans);--kl-prose-h2-font:600 24px/1.7 var(--kl-font-sans);--kl-prose-h3-font:600 20px/1.7 var(--kl-font-sans);--kl-prose-h4-font:600 16px/1.7 var(--kl-font-sans);--kl-prose-small-font:400 14px/20px var(--kl-font-sans);--kl-prose-code-font:400 14.4px/1.7 var(--kl-font-mono);--kl-code-block-font:400 13px/20px var(--kl-font-mono)}:root[data-theme=dark]{--kl-background-100:#0a0a0a;--kl-background-200:#000;--kl-gray-100:#1a1a1a;--kl-gray-200:#1f1f1f;--kl-gray-300:#292929;--kl-gray-400:#2e2e2e;--kl-gray-500:#454545;--kl-gray-600:#878787;--kl-gray-700:#8f8f8f;--kl-gray-800:#7d7d7d;--kl-gray-900:#a1a1a1;--kl-gray-1000:#ededed;--kl-gray-alpha-100:#ffffff0f;--kl-gray-alpha-200:#ffffff17;--kl-gray-alpha-300:#ffffff21;--kl-gray-alpha-400:#ffffff24;--kl-gray-alpha-500:#ffffff3d;--kl-gray-alpha-600:#ffffff82;--kl-gray-alpha-700:#ffffff8a;--kl-gray-alpha-800:#ffffff78;--kl-gray-alpha-900:#ffffff9c;--kl-gray-alpha-1000:#ffffffeb;--kl-blue-100:#0f1c2e;--kl-blue-200:#10233d;--kl-blue-300:#0f2f57;--kl-blue-400:#0d3868;--kl-blue-500:#0a4380;--kl-blue-600:#0091ff;--kl-blue-700:#0072f5;--kl-blue-800:#0062d1;--kl-blue-900:#52a8ff;--kl-blue-1000:#ebf6ff;--kl-red-100:#2a1314;--kl-red-200:#3c1618;--kl-red-300:#561a1e;--kl-red-400:#671e21;--kl-red-500:#832126;--kl-red-600:#e5484d;--kl-red-700:#e5484d;--kl-red-800:#d93036;--kl-red-900:#ff6166;--kl-red-1000:#feecee;--kl-amber-100:#291800;--kl-amber-200:#331b00;--kl-amber-300:#4d2a00;--kl-amber-400:#573300;--kl-amber-500:#6b4105;--kl-amber-600:#e79d13;--kl-amber-700:#ffb224;--kl-amber-800:#ff990a;--kl-amber-900:#f2a20d;--kl-amber-1000:#fef3dc;--kl-green-100:#0b2212;--kl-green-200:#0f2e18;--kl-green-300:#12361b;--kl-green-400:#0c451b;--kl-green-500:#126426;--kl-green-600:#1a9338;--kl-green-700:#45a557;--kl-green-800:#398e4a;--kl-green-900:#62c073;--kl-green-1000:#e5fbea;--kl-teal-100:#04201b;--kl-teal-200:#062822;--kl-teal-300:#083a33;--kl-teal-400:#053d35;--kl-teal-500:#085e53;--kl-teal-600:#0c9784;--kl-teal-700:#12a594;--kl-teal-800:#0d8c7d;--kl-teal-900:#0ac7b4;--kl-teal-1000:#e0faf4;--kl-purple-100:#231528;--kl-purple-200:#2e1938;--kl-purple-300:#422154;--kl-purple-400:#4f2768;--kl-purple-500:#5f2e85;--kl-purple-600:#8e4ec6;--kl-purple-700:#8e4ec6;--kl-purple-800:#763da9;--kl-purple-900:#bf7af0;--kl-purple-1000:#f8edfc;--kl-pink-100:#28151d;--kl-pink-200:#3a1726;--kl-pink-300:#4f1c31;--kl-pink-400:#551b33;--kl-pink-500:#6c1e3e;--kl-pink-600:#b31a57;--kl-pink-700:#ea3e83;--kl-pink-800:#df2670;--kl-pink-900:#f75f8f;--kl-pink-1000:#feecf4;--kl-focus-color:var(--kl-blue-900);--kl-link-color:var(--kl-blue-900);--kl-page-bg:var(--kl-background-200);--kl-nav-link:#888;--kl-primary-hover:#ccc;--kl-secondary-hover:var(--kl-gray-200);--kl-surface-quiet:#171717;--kl-badge-amber-bg:#411a00;--kl-badge-green-bg:#003400;--kl-logo-ink:#fff;--kl-shadow-border:0 0 0 1px #ffffff25, 0 0 0 1px #000;--kl-shadow-border-small:0 0 0 1px #ffffff25, 0px 1px 2px #00000029, 0 0 0 1px #000;--kl-shadow-border-medium:0 0 0 1px #ffffff25, 0px 2px 2px #00000052, 0px 8px 8px -8px #00000029, 0 0 0 1px #000;--kl-shadow-border-large:0 0 0 1px #ffffff25, 0px 2px 2px #0000000a, 0px 8px 16px -4px #0000000a, 0 0 0 1px #000;--kl-shadow-menu:0 0 0 1px #ffffff25, 0px 1px 1px #00000005, 0px 4px 8px -4px #0000000a, 0px 16px 24px -8px #0000000f, 0 0 0 1px #000;--kl-focus-ring:0 0 0 2px #0a0a0a, 0 0 0 4px #52a8ff;--kl-field-focus:0 0 0 1px #ffffff82, 0 0 0 4px #ffffff3d}
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