@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-rotate-x:initial;--tw-rotate-y:initial;--tw-rotate-z:initial;--tw-skew-x:initial;--tw-skew-y:initial;--tw-border-style:solid;--tw-leading:initial;--tw-ordinal:initial;--tw-slashed-zero:initial;--tw-numeric-figure:initial;--tw-numeric-spacing:initial;--tw-numeric-fraction:initial;--tw-shadow:0 0 #0000;--tw-shadow-color:initial;--tw-shadow-alpha:100%;--tw-inset-shadow:0 0 #0000;--tw-inset-shadow-color:initial;--tw-inset-shadow-alpha:100%;--tw-ring-color:initial;--tw-ring-shadow:0 0 #0000;--tw-inset-ring-color:initial;--tw-inset-ring-shadow:0 0 #0000;--tw-ring-inset:initial;--tw-ring-offset-width:0px;--tw-ring-offset-color:#fff;--tw-ring-offset-shadow:0 0 #0000;--tw-outline-style:solid;--tw-blur:initial;--tw-brightness:initial;--tw-contrast:initial;--tw-grayscale:initial;--tw-hue-rotate:initial;--tw-invert:initial;--tw-opacity:initial;--tw-saturate:initial;--tw-sepia:initial;--tw-drop-shadow:initial;--tw-drop-shadow-color:initial;--tw-drop-shadow-alpha:100%;--tw-drop-shadow-size:initial}}}@layer theme{:root,:host{--spacing:.25rem;--default-transition-duration:.15s;--default-transition-timing-function:cubic-bezier(.4, 0, .2, 1);--default-font-family:var(--font-body);--default-mono-font-family:var(--font-code)}}@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,ui-sans-serif, system-ui, 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{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{.\@container{container-type:inline-size}.collapse{visibility:collapse}.invisible{visibility:hidden}.visible{visibility:visible}.absolute{position:absolute}.fixed{position:fixed}.relative{position:relative}.static{position:static}.sticky{position:sticky}.isolate{isolation:isolate}.container{width:100%}@media (min-width:40rem){.container{max-width:40rem}}@media (min-width:48rem){.container{max-width:48rem}}@media (min-width:64rem){.container{max-width:64rem}}@media (min-width:80rem){.container{max-width:80rem}}@media (min-width:96rem){.container{max-width:96rem}}.m-1{margin:var(--spacing)}.block{display:block}.contents{display:contents}.flex{display:flex}.grid{display:grid}.hidden{display:none}.inline{display:inline}.table{display:table}.table\!{display:table!important}.size-0{width:0;height:0}.size-1{width:var(--spacing);height:var(--spacing)}.size-2{width:calc(var(--spacing) * 2);height:calc(var(--spacing) * 2)}.h-8{height:calc(var(--spacing) * 8)}.shrink{flex-shrink:1}.grow{flex-grow:1}.transform{transform:var(--tw-rotate-x,) var(--tw-rotate-y,) var(--tw-rotate-z,) var(--tw-skew-x,) var(--tw-skew-y,)}.resize{resize:both}.flex-wrap{flex-wrap:wrap}.truncate{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.rounded{border-radius:.25rem}.border{border-style:var(--tw-border-style);border-width:1px}.leading-1{--tw-leading:var(--spacing);line-height:var(--spacing)}.capitalize{text-transform:capitalize}.lowercase{text-transform:lowercase}.uppercase{text-transform:uppercase}.italic{font-style:italic}.ordinal{--tw-ordinal:ordinal;font-variant-numeric:var(--tw-ordinal,) var(--tw-slashed-zero,) var(--tw-numeric-figure,) var(--tw-numeric-spacing,) var(--tw-numeric-fraction,)}.line-through{text-decoration-line:line-through}.overline{text-decoration-line:overline}.underline{text-decoration-line:underline}.shadow{--tw-shadow:0 1px 3px 0 var(--tw-shadow-color,#0000001a), 0 1px 2px -1px var(--tw-shadow-color,#0000001a);box-shadow:var(--tw-inset-shadow), var(--tw-inset-ring-shadow), var(--tw-ring-offset-shadow), var(--tw-ring-shadow), var(--tw-shadow)}.ring{--tw-ring-shadow:var(--tw-ring-inset,) 0 0 0 calc(1px + var(--tw-ring-offset-width)) var(--tw-ring-color,currentcolor);box-shadow:var(--tw-inset-shadow), var(--tw-inset-ring-shadow), var(--tw-ring-offset-shadow), var(--tw-ring-shadow), var(--tw-shadow)}.outline{outline-style:var(--tw-outline-style);outline-width:1px}.grayscale{--tw-grayscale:grayscale(100%);filter:var(--tw-blur,) var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,)}.invert{--tw-invert:invert(100%);filter:var(--tw-blur,) var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,)}.filter{filter:var(--tw-blur,) var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,)}.transition{transition-property:color,background-color,border-color,outline-color,text-decoration-color,fill,stroke,--tw-gradient-from,--tw-gradient-via,--tw-gradient-to,opacity,box-shadow,transform,translate,scale,rotate,filter,-webkit-backdrop-filter,backdrop-filter,display,content-visibility,overlay,pointer-events;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration))}}:root{--bg:#fbfcfd;--surface:#fff;--ink:#0d1b2a;--muted:#526174;--line:#d7dee8;--teal:#0f8f86;--blue:#175a9e;--coral:#d7564a;--paper:#fffefa;--shadow:0 10px 28px #0d1b2a14;--font-body:Arial, Helvetica, sans-serif;--font-code:"Courier New", monospace}*{box-sizing:border-box}html{background:var(--bg);color:var(--ink);overflow-x:clip}body{background:var(--bg);min-width:320px;color:var(--ink);font-family:var(--font-body);margin:0;line-height:1.5;overflow-x:clip}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button{cursor:pointer}.site-shell{width:min(1160px,100% - 32px);max-width:calc(100% - 32px);margin:0 auto}.site-header{z-index:30;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#fffffff0;border-bottom:1px solid #0d1b2a1f;position:relative}.header-inner{grid-template-columns:minmax(245px,1fr) minmax(260px,320px) max-content;align-items:center;gap:12px;width:min(1440px,100% - 32px);max-width:calc(100% - 32px);min-height:72px;display:grid}.footer-inner{justify-content:space-between;align-items:center;gap:24px;min-height:72px;display:flex}.brand{align-items:center;gap:12px;min-width:220px;display:inline-flex}.brand span{min-width:0}.header-search-slot{justify-self:center;width:100%;min-width:0;max-width:320px}.brand-mark{background:#fff;border-radius:10px;flex:none;place-items:center;width:42px;height:42px;display:inline-grid;box-shadow:0 6px 16px #0d1b2a1a}.brand-mark-svg{width:38px;height:38px}.brand-mark-svg rect{fill:var(--paper);stroke:var(--ink);stroke-width:3px}.brand-mark-svg path{fill:none;stroke-linecap:round;stroke-linejoin:round}.brand-mark-svg polygon{fill:#d7f0ea;stroke:var(--ink);stroke-width:3px;stroke-linejoin:round}.brand-mark-svg .worksheet-lines{stroke:#9db5c8;stroke-width:2.4px}.brand-mark-svg .worksheet-plus{stroke:var(--teal);stroke-width:3.4px}.brand-mark-svg circle{fill:var(--teal)}.brand-mark-svg .worksheet-check{stroke:#fff;stroke-width:2.8px}.brand-mark-svg.compact{width:32px;height:32px}.brand strong,.brand small{display:block}.brand strong{font-size:.98rem}.brand small{color:var(--muted);font-size:.76rem}.top-nav,.site-footer nav{flex-wrap:wrap;align-items:center;gap:8px;min-width:0;display:flex}.top-nav{flex-wrap:nowrap;justify-content:flex-end;justify-self:end;min-width:max-content;max-width:100%;position:relative;overflow:visible}.browse-nav{position:static}.browse-trigger{cursor:pointer;background:var(--teal);color:#fff;white-space:nowrap;border:1px solid #175a9e24;border-radius:8px;flex:none;align-items:center;gap:8px;min-height:42px;padding:10px 14px;font-size:.9rem;font-weight:700;display:inline-flex}.browse-trigger:hover,.browse-trigger[aria-expanded=true]{background:#087b73}.header-direct-link,.inline-action{color:var(--blue);white-space:nowrap;background:#fff;border:1px solid #175a9e24;border-radius:8px;flex:none;justify-content:center;align-items:center;gap:7px;padding:9px 12px;font-size:.9rem;font-weight:700;display:inline-flex}.header-direct-link:hover,.inline-action:hover{color:var(--teal);border-color:#0f766e59}.mega-menu{z-index:60;background:#fff;border:1px solid #0d1b2a1f;border-radius:8px;gap:20px;width:min(1080px,100vw - 32px);padding:24px 24px 20px;display:grid;position:absolute;top:calc(100% + 10px);right:0;box-shadow:0 18px 36px #0d1b2a24}.mega-menu:before{display:none}.mega-menu-grid{grid-template-columns:repeat(5,minmax(0,1fr));gap:0;display:grid}.mega-menu-section{border-right:1px solid #0d1b2a1a;align-content:start;gap:10px;min-width:0;padding:6px 22px 8px;display:grid}.mega-menu-section:last-child{border-right:0}.mega-section-heading{width:100%;color:var(--ink);text-align:left;cursor:default;background:0 0;border:0;align-items:center;gap:8px;padding:0;font-size:.98rem;font-weight:900;display:flex}.mega-section-heading span{flex:1}.section-caret{transition:transform .16s;display:none;color:var(--muted)!important}.mega-section-heading[aria-expanded=true] .section-caret{transform:rotate(180deg)}.mega-section-heading svg{color:var(--teal)}.mega-menu-section-links{gap:10px;display:grid}.mega-menu-section-links a,.mega-menu-all{color:var(--blue);border-radius:6px;align-items:center;gap:7px;padding:5px 0;font-size:.88rem;font-weight:760;display:inline-flex}.mega-menu-section-links a:hover,.mega-menu-all:hover{color:var(--teal)}.mega-menu-footer{border-top:1px solid #0d1b2a1a;align-items:center;gap:20px;padding:18px 0 0;display:flex}.mega-menu-all{color:var(--blue);padding:0;font-weight:800}.mega-menu-footer p{color:var(--muted);margin:0;font-size:.88rem;font-weight:700}.site-search{z-index:50;width:min(100%,520px);position:relative}.site-search.header{width:100%}.site-search.home{margin:18px 0 2px}.site-search-label{color:var(--muted);letter-spacing:0;text-transform:uppercase;gap:6px;font-size:.72rem;font-weight:900;display:grid}.site-search.header .site-search-label>span:first-child{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.site-search-input-shell{align-items:center;display:grid;position:relative}.site-search-input-shell>svg{width:18px;height:18px;color:var(--teal);pointer-events:none;position:absolute;left:12px}.site-search input{width:100%;min-height:42px;color:var(--ink);font:inherit;letter-spacing:0;background:#fff;border:1px solid #175a9e29;border-radius:8px;outline:none;padding:10px 42px 10px 38px;font-size:.9rem;font-weight:750;box-shadow:0 8px 20px #0d1b2a0f}.site-search.home input{min-height:48px;font-size:1rem}.site-search input:focus{border-color:#0f766e7a;box-shadow:0 0 0 3px #0f766e1f,0 12px 28px #0d1b2a14}.site-search-clear{width:30px;height:30px;color:var(--muted);cursor:pointer;background:#eef4f8;border:0;border-radius:999px;place-items:center;display:inline-grid;position:absolute;right:7px}.site-search-clear:hover{color:var(--ink)}.site-search-results{background:#fff;border:1px solid #0d1b2a1f;border-radius:8px;gap:6px;max-height:min(70vh,460px);padding:8px;display:grid;position:absolute;top:calc(100% + 8px);left:0;right:0;overflow-y:auto;box-shadow:0 22px 55px #0d1b2a2e}.site-search-result{min-height:58px;color:var(--ink);border-radius:6px;grid-template-columns:minmax(0,1fr) auto auto;align-items:center;gap:10px;padding:9px 10px;text-decoration:none;display:grid}.site-search-result:hover,.site-search-result:focus-visible{background:#f3faf8}.site-search-result strong,.site-search-result small{text-overflow:ellipsis;white-space:nowrap;min-width:0;display:block;overflow:hidden}.site-search-result strong{font-size:.9rem;font-weight:900}.site-search-result small{color:var(--muted);font-size:.74rem;font-weight:750}.site-search-result em,.site-search-kicker{color:var(--teal);text-transform:uppercase;font-size:.68rem;font-style:normal;font-weight:900}.site-search-result>svg{color:var(--blue)}.site-search-kicker,.site-search-empty{margin:0;padding:8px 10px}.site-search-empty{color:var(--muted);font-size:.86rem;font-weight:760}.home-hero,.tool-hero{padding:34px 0 22px}.home-hero-grid{grid-template-columns:minmax(280px,.68fr) minmax(540px,1.32fr);align-items:center;gap:30px;display:grid}.home-copy{min-width:0;padding:22px 0 10px}.home-copy.compact{max-width:760px}.home-hero-actions{flex-wrap:wrap;gap:10px;margin-top:18px;display:flex}.primary-action{border-color:var(--teal);background:var(--teal);color:#fff}.primary-action:hover{color:#fff;background:#087b73;border-color:#087b73}.home-popular{border-top:1px solid #0d1b2a1a;margin-top:24px;padding-top:15px}.home-popular p{color:#4a5968;text-transform:uppercase;margin:0 0 12px;font-size:.84rem;font-weight:800}.home-popular-links{grid-template-columns:repeat(4,minmax(0,1fr));align-items:stretch;gap:0;max-width:520px;display:grid}.home-popular-links a{min-height:70px;color:var(--blue);text-align:center;background:0 0;border:0;border-left:1px solid #0d1b2a1a;border-radius:0;place-items:center;gap:8px;padding:8px 10px;font-size:.82rem;font-weight:800;display:grid}.home-popular-links a:first-child{border-left:0}.home-popular-links a:hover,.home-popular-links svg{color:var(--teal)}.home-hero-benefits{background:#fff;border:1px solid #0d1b2a1a;border-radius:8px;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;margin-top:20px;display:grid;box-shadow:0 8px 20px #0d1b2a0d}.home-hero-benefits article{align-items:center;gap:12px;min-width:0;padding:14px 18px;display:flex}.home-hero-benefits article+article{border-left:1px solid #0d1b2a1a}.home-hero-benefits svg{color:var(--teal);flex:none}.home-hero-benefits strong,.home-hero-benefits small{display:block}.home-hero-benefits strong{color:var(--ink);font-size:.9rem}.home-hero-benefits small{color:var(--muted);font-size:.78rem}.home-preview-card{justify-content:center;align-items:center;min-width:0;min-height:500px;padding:0;display:flex;position:relative}.home-preview-image{aspect-ratio:1200/760;filter:drop-shadow(0 22px 34px #0d1b2a29);width:min(100%,840px);height:auto;display:block}.eyebrow{color:var(--teal);text-transform:uppercase;margin:0 0 8px;font-size:.76rem;font-weight:800}h1,h2,h3{overflow-wrap:break-word}p{overflow-wrap:normal}h1{max-width:860px;color:var(--ink);margin:0;font-size:clamp(2rem,3.4vw,3.4rem);line-height:1.05}h2{margin:0;font-size:clamp(1.55rem,2vw,2.2rem);line-height:1.14}h3{margin:0;font-size:1.04rem}.home-copy p,.page-heading p,.lede{color:#42505e;max-width:720px;font-size:1.08rem}.direct-answer{background:#f3fbf9;border:1px solid #0f766e2e;border-radius:8px;padding:14px 16px;line-height:1.55;color:#183e44!important;max-width:820px!important;margin-top:16px!important;font-size:1rem!important}.home-direct-answer{background:0 0;border:0;padding:0;line-height:1.45;color:#42505e!important;max-width:560px!important;margin-top:10px!important;font-size:.98rem!important}.page-main{min-height:72vh}.page-heading{min-width:0;margin-bottom:22px}.worksheet-tool-jump{margin-top:16px}#worksheet-tool{scroll-margin-top:20px}.tool-shell{box-shadow:var(--shadow);background:#fff;border:1px solid #0d1b2a1f;border-radius:8px;grid-template-columns:minmax(340px,480px) minmax(0,1fr);align-items:start;gap:22px;padding:18px;display:grid}.home-tool .tool-shell{grid-template-columns:1fr}.home-tool .control-panel{order:1}.home-tool .preview-panel{order:2;max-height:520px;overflow:auto}.control-panel,.preview-panel{background:var(--surface);min-width:0;max-width:100%;box-shadow:none;border:1px solid #0d1b2a1f;border-radius:8px}.control-panel{gap:18px;padding:18px;display:grid}.control-panel p{color:var(--muted);margin:8px 0 0}.controls-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.controls-grid label{color:#344252;gap:6px;min-width:0;font-size:.82rem;font-weight:750;display:grid}.title-control{grid-column:1/-1}.controls-grid input,.controls-grid select{border:1px solid var(--line);width:100%;min-width:0;min-height:40px;color:var(--ink);background:#fff;border-radius:8px;padding:9px 10px}.field-hint,.field-error{font-size:.76rem;font-weight:700;line-height:1.35}.field-hint{color:var(--muted)}.field-error{color:#b72727}.controls-grid input[aria-invalid=true]{border-color:#d75151;box-shadow:0 0 0 3px #d751511f}.checkbox-control{grid-column:1/-1;align-items:center;min-height:42px;grid-template-columns:none!important;gap:10px!important;display:flex!important}.checkbox-control input{width:18px;min-height:18px;accent-color:var(--teal)}.tool-actions{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;display:grid}.tool-actions button{background:var(--ink);color:#fff;white-space:nowrap;border:0;border-radius:8px;justify-content:center;align-items:center;gap:8px;min-height:42px;padding:10px;font-size:.86rem;font-weight:800;display:inline-flex}.tool-actions button:nth-child(2){background:var(--blue)}.tool-actions button:nth-child(3){background:var(--teal)}.tool-actions button:disabled{cursor:not-allowed;color:#f6f8fb;background:#9aa8b8}.tool-actions svg{flex:none}.tool-status{min-height:21px;font-size:.86rem;font-weight:700;color:var(--blue)!important;margin:0!important}.preview-panel{background:linear-gradient(#fff,#fbfcfd);max-height:820px;padding:18px;overflow:auto}.preview-stack{justify-items:center;gap:18px;display:grid}.worksheet-page{aspect-ratio:8.5/11;background:var(--paper);color:#17202a;border:1px solid #ccd6e0;width:min(100%,680px);padding:42px;position:relative;overflow:hidden;box-shadow:0 8px 22px #0d1b2a1f}.worksheet-print-header{border-bottom:2px solid #202b36;justify-content:space-between;align-items:flex-start;gap:18px;padding-bottom:18px;display:flex}.worksheet-print-header h2{margin:0 0 8px;font-size:clamp(1rem,2vw,1.45rem)}.worksheet-print-header p{color:#344252;margin:0;font-size:.82rem}.problem-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px 30px;padding-top:26px;display:grid}.problem-grid.dense{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.worksheet-directions{color:#344252;font-family:var(--font-code);margin:18px 0 0;font-size:.78rem;font-weight:800}.problem-item{min-height:42px;font-family:var(--font-code);font-size:clamp(.78rem,1.6vw,1.08rem)}.problem-item.horizontal{align-items:baseline;gap:8px;display:flex}.fraction-model-card{min-height:132px;font-family:var(--font-body);background:#fff;border:1px solid #d7e2ee;border-radius:7px;gap:9px;padding:12px;font-size:.82rem;display:grid}.fraction-model-card strong{font-size:.82rem}.fraction-bar-model{background:#fff;border:2px solid #17202a;width:min(100%,118px);height:34px;display:grid}.fraction-bar-model i{border-right:1px solid #17202a;display:block}.fraction-bar-model i:last-child{border-right:0}.fraction-bar-model i.shaded{background:#83c965}.fraction-answer-line{border-top:2px solid #17202a;width:min(100%,96px)}.problem-item.vertical{justify-items:end;gap:4px;width:118px;display:grid}.problem-number{color:#637083;justify-self:start;font-size:.78em}.answer-line{border-top:2px solid #17202a;width:100%}.division-problem{width:150px}.time-card{text-align:center;justify-items:center;gap:6px;min-height:150px;display:grid}.time-card .problem-number{justify-self:start}.time-card strong,.time-prompt strong{line-height:1.35}.analog-clock{aspect-ratio:1;width:min(100%,112px)}.analog-clock circle:first-child{fill:#fff;stroke:#17202a;stroke-width:3px}.analog-clock line{stroke:#17202a;stroke-linecap:round;stroke-width:2px}.analog-clock text{fill:#17202a;font-family:var(--font-code);text-anchor:middle;font-size:10px;font-weight:800}.analog-clock .hour-hand{stroke-width:4px}.analog-clock .minute-hand{stroke-width:2.8px}.analog-clock .clock-pin{fill:#17202a}.time-answer-line{font-size:.82rem;font-weight:800}.money-card{gap:8px;min-height:124px;display:grid}.money-card strong,.money-prompt strong{line-height:1.35}.coin-row{flex-wrap:wrap;align-items:center;gap:5px;min-height:58px;display:flex}.coin-chip{color:#17202a;width:28px;height:28px;font-family:var(--font-code);background:#f8fafc;border:2px solid #5f6b78;border-radius:50%;place-items:center;font-size:.72rem;font-weight:900;display:inline-grid}.coin-chip.quarters{background:#eef2f7;width:34px;height:34px}.coin-chip.dimes{width:24px;height:24px}.coin-chip.nickels{width:30px;height:30px}.coin-chip.pennies{color:#653b1f;background:#fff2e5;border-color:#9a5b30}.measurement-card{gap:8px;min-height:126px;display:grid}.measurement-card strong,.measurement-prompt strong{line-height:1.35}.measurement-ruler{gap:8px;display:grid}.ruler-track{border-bottom:2px solid #17202a;height:46px;display:block;position:relative}.ruler-tick{background:#17202a;width:1px;height:18px;position:absolute;bottom:0}.ruler-tick.major{height:28px}.ruler-tick em{color:#344252;font-family:var(--font-code);font-size:.62rem;font-style:normal;font-weight:800;position:absolute;bottom:30px;left:-5px}.measure-line{background:#0f766e;border-radius:999px;height:5px;position:absolute;bottom:7px;left:0}.ruler-unit{color:#344252;font-family:var(--font-code);font-size:.72rem;font-weight:800}.geometry-card{gap:7px;min-height:166px;display:grid}.geometry-card strong,.geometry-prompt strong{line-height:1.35}.geometry-diagram{width:min(100%,190px);height:126px}.geometry-diagram rect,.geometry-diagram polygon,.geometry-diagram circle:first-child{fill:#fff;stroke:#17202a;stroke-width:2.4px}.geometry-diagram line{stroke:#17202a;stroke-linecap:round;stroke-width:2px}.geometry-diagram .diagram-grid-line{stroke:#d7e0ea;stroke-width:1px}.geometry-diagram text{fill:#17202a;font-family:var(--font-code);font-size:11px;font-weight:800}.coordinate-diagram line{stroke:#d7e0ea;stroke-width:1px}.coordinate-diagram .axis-line{stroke:#17202a;stroke-width:2px}.geometry-dot{fill:var(--teal);stroke:var(--teal)}.geometry-answer-line{font-size:.78rem;font-weight:800}.word-problem-list{gap:14px;padding-top:18px;display:grid}.word-problem-list.two-column{grid-template-columns:repeat(2,minmax(0,1fr))}.word-problem-list.one-column{grid-template-columns:minmax(0,1fr)}.word-problem-card{min-height:138px;font-family:var(--font-code);background:#fff;border:1px solid #dbe5ef;border-radius:6px;gap:7px;padding:12px;display:grid}.word-problem-card strong{color:#17202a;font-size:.8rem;line-height:1.25}.word-problem-card p{color:#17202a;margin:0;font-size:.74rem;font-weight:700;line-height:1.45}.word-answer-line{color:#344252;font-size:.72rem;font-weight:900}.word-work-lines{background:repeating-linear-gradient(#0000 0 13px,#cbd6e2 14px,#0000 15px);min-height:38px;display:block}.grade-review-list{gap:12px;padding-top:18px;display:grid}.grade-review-list.compact-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.grade-review-list.review-list{grid-template-columns:minmax(0,1fr)}.grade-review-card{min-height:78px;font-family:var(--font-code);background:#fff;border:1px solid #dbe5ef;border-radius:6px;grid-template-columns:auto 1fr;align-items:start;gap:6px 9px;padding:10px;display:grid}.grade-review-card .problem-number{grid-row:span 3}.grade-review-card strong{color:#17202a;font-size:.78rem;line-height:1.35}.grade-skill-tag{color:#0f766e;background:#e8f5f3;border-radius:4px;width:fit-content;padding:4px 6px;font-size:.62rem;font-weight:900;line-height:1}.grade-answer-line{color:#344252;font-size:.7rem;font-weight:900}.algebra-list{gap:12px;padding-top:18px;display:grid}.algebra-list.algebra-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.algebra-list.practice-list{grid-template-columns:minmax(0,1fr)}.algebra-card{min-height:82px;font-family:var(--font-code);background:#fff;border:1px solid #dbe5ef;border-radius:6px;grid-template-columns:auto 1fr;align-items:start;gap:6px 9px;padding:10px;display:grid}.algebra-card .problem-number{grid-row:span 3}.algebra-card strong{color:#17202a;font-size:.78rem;line-height:1.35}.algebra-skill-tag{color:#3551a3;background:#eef2ff;border-radius:4px;width:fit-content;padding:4px 6px;font-size:.62rem;font-weight:900;line-height:1}.algebra-answer-line{color:#344252;font-size:.7rem;font-weight:900}.data-graphing-list{gap:12px;padding-top:18px;display:grid}.data-graphing-list.graph-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.data-graphing-list.question-list{grid-template-columns:minmax(0,1fr)}.data-graph-card{min-height:132px;font-family:var(--font-code);background:#fff;border:1px solid #dbe5ef;border-radius:6px;gap:7px;padding:10px;display:grid}.data-problem-meta{justify-content:space-between;align-items:center;gap:8px;display:flex}.data-graph-card strong{color:#17202a;font-size:.68rem;line-height:1.3}.data-skill-tag{color:#9a4f00;background:#fff4df;border-radius:4px;width:fit-content;padding:4px 6px;font-size:.58rem;font-weight:900;line-height:1}.data-answer-line{color:#344252;font-size:.68rem;font-weight:900}.data-visual{background:#f8fbfd;border:1px solid #e1e9f2;border-radius:5px;min-height:54px;padding:6px}.mini-bar-row{color:#1f2d3d;grid-template-columns:56px minmax(0,1fr) 24px;align-items:center;gap:5px;min-height:14px;font-size:.54rem;font-weight:800;display:grid}.mini-bar-row>span:first-child{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.mini-bar-track{background:#e7edf5;border-radius:999px;height:7px;overflow:hidden}.mini-bar-fill{border-radius:inherit;background:linear-gradient(90deg,#0f766e,#f05f43);height:100%;display:block}.mini-bar-row b{color:#25364a;text-align:right;font-size:.52rem}.data-visual.probability .mini-bar-fill{background:linear-gradient(90deg,#315a9d,#f0b33a)}.tally-table{border-collapse:collapse;width:100%;font-size:.56rem;font-weight:800}.tally-table th,.tally-table td{text-align:left;border-bottom:1px solid #e1e9f2;padding:3px 4px}.tally-table th{color:#203047;width:44%}.tally-table td{color:#0f766e;letter-spacing:.5px}.pictograph{gap:3px;display:grid}.pictograph-row{grid-template-columns:58px 1fr;align-items:center;gap:5px;font-size:.55rem;font-weight:800;display:grid}.pictograph-row i{background:#f05f43;border-radius:50%;width:8px;height:8px;margin-right:2px;display:inline-block}.pictograph em{color:#5a6878;font-size:.52rem;font-style:normal;font-weight:800}.line-plot{align-items:end;gap:6px;min-height:68px;display:flex;overflow-x:auto}.line-plot-column{color:#233247;text-align:center;align-items:end;min-width:17px;font-size:.54rem;font-weight:900;display:grid}.line-plot-marks{color:#0f766e;border-bottom:2px solid #243449;align-content:end;min-height:35px;line-height:.8;display:grid}.data-set{flex-wrap:wrap;align-items:center;gap:4px;display:flex}.data-set span{color:#0f766e;text-align:center;background:#e8f5f3;border-radius:4px;min-width:24px;padding:4px 6px;font-size:.62rem;font-weight:900}.number-sense-list{gap:12px;padding-top:18px;display:grid}.number-sense-list.number-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.number-sense-list.practice-list{grid-template-columns:minmax(0,1fr)}.number-sense-card{min-height:126px;font-family:var(--font-code);background:#fff;border:1px solid #dbe5ef;border-radius:6px;gap:7px;padding:10px;display:grid}.number-problem-meta{justify-content:space-between;align-items:center;gap:8px;display:flex}.number-sense-card strong{color:#17202a;font-size:.7rem;line-height:1.3}.number-skill-tag{color:#3b7a19;background:#eef8e8;border-radius:4px;width:fit-content;padding:4px 6px;font-size:.58rem;font-weight:900;line-height:1}.number-answer-line{color:#344252;font-size:.68rem;font-weight:900}.number-visual{background:#f8fbfd;border:1px solid #e1e9f2;border-radius:5px;min-height:52px;padding:6px}.base-ten-model{grid-template-columns:auto auto 1fr;align-items:center;gap:8px;display:grid}.hundreds-blocks,.tens-rods,.ones-cubes{flex-wrap:wrap;align-items:center;gap:3px;display:flex}.hundreds-blocks i{background:linear-gradient(#9dcb62 0 0) padding-box padding-box,repeating-linear-gradient(90deg,#0000 0 4px,#23481240 4px 5px),repeating-linear-gradient(0deg,#0000 0 4px,#23481240 4px 5px);border:1px solid #79a94f;width:25px;height:25px;display:block}.tens-rods i{background:#56a7d9;border-radius:2px;width:5px;height:32px;display:block}.ones-cubes i{background:#f0b33a;border-radius:2px;width:8px;height:8px;display:block}.mini-number-line{min-height:64px;padding:24px 10px 14px;display:block;position:relative}.line-axis{background:#243449;height:2px;position:absolute;top:31px;left:10px;right:10px}.line-tick{color:#243449;text-align:center;font-size:.54rem;font-weight:900;position:absolute;top:24px;transform:translate(-50%)}.line-tick b{background:#243449;width:2px;height:14px;margin:0 auto 3px;display:block}.line-tick em{font-style:normal}.line-marker{background:#f05f43;border-radius:50%;width:9px;height:9px;position:absolute;top:21px;transform:translate(-50%);box-shadow:0 0 0 3px #f05f4326}.number-chip-row{flex-wrap:wrap;align-items:center;gap:5px;display:flex}.number-chip-row span{color:#0f766e;text-align:center;background:#e8f5f3;border-radius:4px;min-width:31px;padding:5px 6px;font-size:.62rem;font-weight:900}.number-chip-row.ordering span{color:#9a4f00;background:#fff4df}.expanded-model,.comparison-model,.place-value-model{color:#243449;justify-content:center;align-items:center;gap:10px;font-size:.9rem;font-weight:900;display:flex}.expanded-model b,.comparison-model b,.place-value-model b{color:#0f766e}.patterns-list{gap:12px;padding-top:18px;display:grid}.patterns-list.pattern-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.patterns-list.practice-list{grid-template-columns:minmax(0,1fr)}.pattern-card{min-height:130px;font-family:var(--font-code);background:#fff;border:1px solid #dbe5ef;border-radius:6px;gap:7px;padding:10px;display:grid}.pattern-problem-meta{justify-content:space-between;align-items:center;gap:8px;display:flex}.pattern-card strong{color:#17202a;font-size:.68rem;line-height:1.3}.pattern-skill-tag{color:#0f766e;background:#e8f5f3;border-radius:4px;width:fit-content;padding:4px 6px;font-size:.58rem;font-weight:900;line-height:1}.pattern-answer-line{color:#344252;font-size:.68rem;font-weight:900}.pattern-visual{background:#f8fbfd;border:1px solid #e1e9f2;border-radius:5px;min-height:54px;padding:6px}.pattern-chip-row{flex-wrap:wrap;align-items:center;gap:5px;display:flex}.pattern-chip-row span{color:#9a4f00;text-align:center;background:#fff4df;border-radius:4px;min-width:30px;padding:5px 6px;font-size:.62rem;font-weight:900}.shape-pattern-row{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.pattern-shape,.shape-blank{justify-content:center;align-items:center;width:24px;height:24px;display:inline-flex}.shape-blank{color:#344252;width:34px;font-size:.62rem;font-weight:900}.pattern-shape i{background:#0f766e;width:18px;height:18px;display:block}.pattern-shape.circle i{border-radius:50%}.pattern-shape.square i{border-radius:3px}.pattern-shape.triangle i{background:0 0;border-bottom:18px solid #f0b33a;border-left:10px solid #0000;border-right:10px solid #0000;width:0;height:0}.pattern-shape.green i{background:#68a83f}.pattern-shape.blue i{background:#2563a8}.pattern-shape.coral i{background:#f05f43}.pattern-shape.teal i{background:#0f766e}.pattern-shape.amber i{background:#f0b33a}.pattern-shape.triangle.green i,.pattern-shape.triangle.blue i,.pattern-shape.triangle.coral i,.pattern-shape.triangle.teal i,.pattern-shape.triangle.amber i{background:0 0}.pattern-shape.triangle.green i{border-bottom-color:#68a83f}.pattern-shape.triangle.blue i{border-bottom-color:#2563a8}.pattern-shape.triangle.coral i{border-bottom-color:#f05f43}.pattern-shape.triangle.teal i{border-bottom-color:#0f766e}.pattern-shape.triangle.amber i{border-bottom-color:#f0b33a}.growing-pattern-model{grid-template-columns:repeat(5,minmax(0,1fr));gap:4px;display:grid}.growing-pattern-model span{color:#243449;text-align:center;background:#eef2ff;border-radius:4px;gap:3px;padding:4px;font-size:.5rem;font-weight:900;display:grid}.growing-pattern-model em{color:#315a9d;font-size:.72rem;font-style:normal}.growing-pattern-model .missing-stage em{color:#f05f43}.input-output-mini-table{border-collapse:collapse;text-align:center;width:100%;font-size:.56rem;font-weight:900}.input-output-mini-table th,.input-output-mini-table td{border:1px solid #dbe5ef;padding:4px}.input-output-mini-table th{color:#0f766e;text-align:left;background:#e8f5f3;width:44px}.input-output-mini-table td{color:#243449}.mixed-operations-list{gap:12px;padding-top:18px;display:grid}.mixed-operations-list.operations-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.mixed-operations-list.practice-list{grid-template-columns:minmax(0,1fr)}.mixed-operation-card{min-height:112px;font-family:var(--font-code);background:#fff;border:1px solid #dbe5ef;border-radius:6px;gap:8px;padding:10px;display:grid}.mixed-operation-meta{justify-content:space-between;align-items:center;gap:8px;display:flex}.mixed-operation-card strong{color:#17202a;font-size:.82rem;line-height:1.35}.mixed-operation-tag{color:#315a9d;background:#eef2ff;border-radius:4px;width:fit-content;padding:4px 6px;font-size:.58rem;font-weight:900;line-height:1}.mixed-operation-answer-line{color:#344252;font-size:.68rem;font-weight:900}.answer-page{page-break-before:always}.answer-grid{font-family:var(--font-code);grid-template-columns:repeat(3,minmax(0,1fr));gap:14px 22px;margin:26px 0 0;padding:0;display:grid}.answer-entry{gap:8px;display:flex}.paper-page{padding:0}.paper-grid.quarter-inch{background-image:linear-gradient(#d6e0ea 1px,#0000 1px),linear-gradient(90deg,#d6e0ea 1px,#0000 1px);background-size:24px 24px}.paper-grid.half-inch{background-image:linear-gradient(#d6e0ea 1px,#0000 1px),linear-gradient(90deg,#d6e0ea 1px,#0000 1px);background-size:48px 48px}.paper-grid.coordinate{background-image:linear-gradient(#d6e0ea 1px,#0000 1px),linear-gradient(90deg,#d6e0ea 1px,#0000 1px);background-size:24px 24px}.axis{background:#526073;position:absolute}.x-axis{width:100%;height:2px;top:50%;left:0}.y-axis{width:2px;height:100%;top:0;left:50%}.paper-lines{background-image:linear-gradient(#c6d4e4 1px,#0000 1px)}.paper-lines.wide{background-size:100% 42px}.paper-lines.narrow{background-size:100% 30px}.paper-lines.handwriting{background-image:linear-gradient(#e2e9f2 1px,#0000 1px),linear-gradient(#b9c9dc 1px,#0000 1px);background-position:0 21px,0 42px;background-size:100% 42px,100% 42px}.paper-lines:before{content:"";background:#ee795b;width:2px;position:absolute;top:0;bottom:0;left:72px}.ad-slot{background:#ffffff6b;border:1px solid #64707d2e;border-radius:8px;min-height:96px;margin:26px 0;display:block;overflow:hidden}.category-section,.content-section,.related-section,.trust-section{padding:46px 0}.section-heading-row{justify-content:space-between;align-items:end;gap:18px;margin-bottom:22px;display:flex}.section-heading-row p{color:var(--muted);margin:8px 0 0}.category-group-list{gap:28px;display:grid}.category-group{gap:14px;display:grid}.category-group-heading{gap:4px;display:grid}.category-group-heading h3,.category-group-heading p{margin:0}.category-group-heading h3{color:var(--ink);font-size:1.08rem}.category-group-heading p{color:var(--muted);max-width:64ch}.category-columns{grid-template-columns:repeat(5,minmax(0,1fr));gap:18px;margin-top:20px;display:grid}.category-cards{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;display:grid}.category-card{background:#fff;border:1px solid #0d1b2a1f;border-radius:8px;grid-template-columns:auto minmax(0,1fr);align-items:start;gap:16px;min-height:150px;padding:22px;display:grid;box-shadow:0 6px 18px #0d1b2a0a}.category-card:hover{border-color:#175a9e42;box-shadow:0 12px 28px #0d1b2a14}.category-card strong,.category-card small,.category-card em{display:block}.category-card strong{font-size:1.1rem}.category-card small{color:var(--muted);margin-top:8px;font-size:.9rem}.category-card em{color:#20384d;background:#eef5f8;border-radius:6px;width:fit-content;margin-top:18px;padding:5px 8px;font-size:.78rem;font-style:normal;font-weight:800}.category-main-link{width:fit-content;color:var(--blue);align-items:center;gap:8px;font-weight:850;display:inline-flex}.category-main-link svg{flex:none}.category-deep-links{flex-wrap:wrap;gap:7px;margin-top:14px;display:flex}.category-deep-links a{color:#24465c;background:#f7fbfc;border:1px solid #175a9e24;border-radius:6px;padding:5px 7px;font-size:.74rem;font-weight:800}.category-deep-links a:hover{color:var(--teal);border-color:#0f766e47}.category-icon{color:#fff;border-radius:8px;place-items:center;width:42px;height:42px;display:inline-grid}.category-icon.teal{background:var(--teal)}.category-icon.blue{background:var(--blue)}.category-icon.orange{background:#e67718}.category-icon.slate{background:#526174}.category-icon.gold{background:#c58a13}.category-icon.mint{background:#2d8b6f}.category-icon.amber{background:#a87712}.category-icon.green{background:#177f68}.category-icon.red{background:#cf443d}.category-icon.violet{background:#8761ba}.category-icon.cyan{background:#1287a5}.category-column,.trust-grid article,.tip-grid article,.related-card,.hub-card{background:#fff;border:1px solid #0d1b2a1a;border-radius:8px}.category-column{padding:18px}.category-column ul,.check-list{gap:10px;margin:14px 0 0;padding:0;list-style:none;display:grid}.category-column a{color:var(--blue);font-weight:700}.category-column a:hover{color:var(--teal)}.two-column-content{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;display:grid}.page-profile-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:18px;padding:0;display:grid}.page-profile-grid article{background:#fff;border:1px solid #0d1b2a1a;border-radius:8px;padding:18px}.family-content-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:18px;display:grid}.family-content-grid article{background:#fff;border:1px solid #0d1b2a1a;border-radius:8px;padding:18px}.family-content-grid h3{margin:0}.family-content-grid p{color:var(--muted);margin:8px 0 0}.check-list li{color:#344252;padding-left:24px;position:relative}.check-list li:before{color:var(--teal);content:"+";font-weight:900;position:absolute;left:0}.tip-grid,.trust-grid,.related-grid,.quick-grid,.hub-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:18px;display:grid}.tip-grid article,.trust-grid article,.quick-grid article,.related-card,.hub-card{padding:18px}.tip-grid p,.trust-grid p,.quick-grid p,.page-profile-grid p,.related-card small,.site-footer p{color:var(--muted);margin:8px 0 0}.review-section{border-top:1px solid #0d1b2a1a;border-bottom:1px solid #0d1b2a1a;grid-template-columns:minmax(240px,.7fr) minmax(0,1fr);align-items:start;gap:28px;display:grid}.review-section p{color:var(--muted)}.quick-grid article{border-left:4px solid var(--teal);background:#fff}.quick-grid strong{color:var(--ink);display:block}.worksheet-sample-section{border-bottom:1px solid #0d1b2a14}.worksheet-sample-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:0;padding:0;list-style:none;display:grid}.worksheet-sample-list li,.worksheet-paper-sample{background:#fff;border:1px solid #0d1b2a1a;border-radius:8px;padding:16px}.worksheet-sample-list li{grid-template-columns:auto minmax(0,1fr);align-items:start;gap:12px;display:grid}.worksheet-sample-list li>span{width:32px;height:32px;color:var(--blue);background:#eef5f8;border-radius:8px;place-items:center;font-weight:900;display:grid}.worksheet-sample-list strong{color:var(--ink);font-family:var(--font-code);line-height:1.35;display:block}.worksheet-sample-list p,.worksheet-paper-sample p{color:var(--muted);margin:8px 0 0}.worksheet-sample-list b{color:var(--teal)}.worksheet-paper-sample{gap:14px;max-width:760px;display:grid}.setup-snapshot-section{border-top:1px solid #0d1b2a14;border-bottom:1px solid #0d1b2a14}.setup-snapshot-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;display:grid}.setup-snapshot-card{background:#fff;border:1px solid #0d1b2a1a;border-radius:8px;align-content:start;gap:12px;min-height:188px;padding:18px;display:grid}.setup-snapshot-card p{color:var(--muted);margin:0}.setup-snapshot-kicker{color:var(--teal);align-items:center;gap:9px;display:flex}.setup-snapshot-kicker strong{color:var(--ink)}.setup-snapshot-list{gap:8px;margin:0;padding:0;list-style:none;display:grid}.setup-snapshot-list li{color:#344252;padding-left:18px;font-size:.92rem;position:relative}.setup-snapshot-list li:before{color:var(--teal);content:"+";font-weight:900;position:absolute;left:0}.setup-snapshot-tags{flex-wrap:wrap;gap:8px;display:flex}.setup-snapshot-tags span{color:#24465c;background:#f7fbfc;border:1px solid #175a9e24;border-radius:6px;padding:6px 8px;font-size:.78rem;font-weight:800}.related-section{gap:14px;display:grid}.related-card{gap:8px;display:grid}.related-card span{color:var(--coral);text-transform:uppercase;font-size:.76rem;font-weight:850}.related-card strong{color:var(--blue)}.hub-section{border-bottom:1px solid #0d1b2a14}.hub-card{gap:8px;display:grid}.hub-card span{color:var(--coral);text-transform:uppercase;font-size:.74rem;font-weight:850}.hub-card strong{color:var(--blue)}.hub-card small{color:var(--muted);line-height:1.45}.video-section{border-top:1px solid #0d1b2a14;border-bottom:1px solid #0d1b2a14;grid-template-columns:minmax(0,1fr) minmax(320px,560px);align-items:start;gap:20px;padding:34px 0;display:grid}.video-copy{align-content:start;gap:8px;display:grid}.video-copy h2{max-width:620px;font-size:clamp(1.3rem,1.55vw,1.7rem)}.video-copy p{max-width:660px;color:var(--muted);margin:0}.video-transcript-inline{max-width:660px;font-size:.94rem;line-height:1.65;color:#42505e!important;margin-top:8px!important}.video-frame{background:#0d1b2a;border:1px solid #0d1b2a1f;border-radius:8px;justify-self:end;width:100%;max-width:560px;overflow:hidden;box-shadow:0 10px 28px #0d1b2a14}.video-frame video{aspect-ratio:16/9;background:#0d1b2a;width:100%;height:auto;display:block}.faq-section details{border-top:1px solid var(--line);padding:16px 0}.faq-section summary{cursor:pointer;color:var(--ink);font-weight:800}.faq-section p{color:var(--muted)}.legal-page{padding-top:46px}.legal-meta-row{flex-wrap:wrap;gap:10px;margin-top:18px;display:flex}.legal-meta-row span{color:#183e44;background:#f3fbf9;border:1px solid #0f766e29;border-radius:999px;padding:7px 10px;font-size:.82rem;font-weight:800}.legal-summary-grid,.contact-action-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:18px;display:grid}.legal-summary-grid article,.contact-action{background:#fff;border:1px solid #0d1b2a1a;border-radius:8px;padding:18px;box-shadow:0 6px 18px #0d1b2a0a}.legal-summary-grid p,.legal-content-section p{max-width:840px;color:var(--muted);margin:10px 0 0}.legal-content-section{border-top:1px solid #0d1b2a14}.legal-link-list{flex-wrap:wrap;gap:8px 18px;margin:16px 0 0;padding-left:20px;display:flex}.legal-link-list a{color:var(--blue);text-underline-offset:3px;font-weight:750;text-decoration:underline}.html-sitemap-page{padding-top:46px}.sitemap-feature-section{gap:18px;display:grid}.sitemap-feature-grid{grid-template-columns:repeat(5,minmax(0,1fr));gap:14px;display:grid}.sitemap-feature-card{background:#fff;border:1px solid #0d1b2a1a;border-radius:8px;gap:8px;padding:18px;display:grid;box-shadow:0 6px 18px #0d1b2a0a}.sitemap-feature-card:hover,.sitemap-feature-card:focus-visible{border-color:#0f766e47}.sitemap-feature-card span,.sitemap-category-heading span{color:var(--coral);text-transform:uppercase;font-size:.74rem;font-weight:850}.sitemap-feature-card strong{color:var(--blue)}.sitemap-feature-card small,.sitemap-index-section p{color:var(--muted);line-height:1.45}.sitemap-category-list{gap:18px;margin-top:20px;display:grid}.sitemap-category{border-top:1px solid #0d1b2a14;padding-top:18px}.sitemap-category-heading{justify-content:space-between;align-items:baseline;gap:16px;margin-bottom:12px;display:flex}.sitemap-category-heading h3{color:var(--ink);margin:0;font-size:1.25rem}.sitemap-link-list{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px 18px;margin:0;padding:0;list-style:none;display:grid}.sitemap-link-list a{color:var(--blue);font-weight:750}.sitemap-link-list a:hover{color:var(--teal)}.contact-action{color:var(--blue);gap:8px;display:grid}.contact-action:hover{color:var(--teal);border-color:#0f766e47}.contact-action span{color:var(--muted);font-size:.88rem}.contact-form{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;max-width:840px;margin-top:18px;display:grid}.contact-form label{color:#344252;gap:7px;font-size:.84rem;font-weight:800;display:grid}.contact-form input,.contact-form select,.contact-form textarea{border:1px solid var(--line);width:100%;min-width:0;color:var(--ink);background:#fff;border-radius:8px;padding:10px 11px}.contact-form textarea{resize:vertical}.contact-message-control,.contact-form button{grid-column:1/-1}.contact-form button{background:var(--ink);color:#fff;border:0;border-radius:8px;min-height:44px;font-weight:850}.contact-honeypot{position:absolute;left:-9999px}.site-footer{background:#fff;border-top:1px solid #0d1b2a1a;margin-top:36px}.footer-brand{align-items:center;gap:12px;display:flex}.site-footer nav a{color:var(--blue);font-weight:700}@media (max-width:1180px){.header-inner{grid-template-columns:minmax(220px,1fr) minmax(280px,420px);grid-template-areas:"brand search""nav nav";row-gap:10px;padding:10px 0}.brand{grid-area:brand}.header-search-slot{grid-area:search;justify-self:end;max-width:420px}.top-nav{grid-area:nav;width:100%;min-width:0}.home-hero-grid,.tool-shell,.two-column-content,.page-profile-grid,.family-content-grid{grid-template-columns:1fr}.category-columns,.category-cards{grid-template-columns:repeat(2,minmax(0,1fr))}.tip-grid,.trust-grid,.related-grid,.quick-grid,.worksheet-sample-list,.setup-snapshot-grid,.hub-grid,.legal-summary-grid,.contact-action-grid,.sitemap-feature-grid,.sitemap-link-list,.review-section{grid-template-columns:1fr}}@media (max-width:720px){.site-shell{width:min(1160px,100% - 24px);max-width:calc(100% - 24px)}.footer-inner{flex-direction:column;align-items:flex-start;padding:12px 0}.header-inner{grid-template-columns:1fr;grid-template-areas:"brand""search""nav";align-items:stretch;gap:8px;min-height:0;padding:8px 0}.brand{min-width:0}.header-search-slot,.site-search.header{width:100%}.header-search-slot{justify-self:stretch;max-width:none}.top-nav{grid-template-columns:1fr;gap:8px;width:100%;min-width:0;max-width:100%;padding-bottom:2px;display:grid;overflow:visible}.browse-nav{grid-column:1/-1;min-width:0}.header-direct-link{display:none}.browse-trigger,.header-direct-link{justify-content:center;width:100%}.mega-menu{width:100%;box-shadow:none;margin-top:8px;padding:16px;position:static;transform:none}.mega-menu:before{display:none}.mega-menu-grid{grid-template-columns:1fr;gap:0}.mega-menu-section{border-bottom:1px solid #0d1b2a1a;border-right:0;padding:0}.mega-menu-section:last-child{border-bottom:0}.mega-section-heading{cursor:pointer;min-height:52px}.section-caret{display:block}.mega-menu-section-links{gap:0;padding:0 0 14px 28px}.mega-menu-section-links a{align-items:center;min-height:38px}.mega-menu-footer{gap:8px;padding-top:14px;display:grid}.home-hero,.tool-hero{padding:18px 0}.tool-hero .page-heading{margin-bottom:14px}.tool-hero .direct-answer{display:none}.worksheet-tool-jump{width:100%}.home-hero-actions{display:grid}.home-popular-links{background:#fff;border:1px solid #0d1b2a1a;border-radius:8px;grid-template-columns:1fr;max-width:100%}.home-popular-links a{text-align:left;border-top:1px solid #0d1b2a1a;border-left:0;grid-template-columns:auto minmax(0,1fr);justify-items:start;min-height:48px;padding:10px 12px}.home-popular-links a:first-child{border-top:0}.home-hero-benefits{grid-template-columns:1fr}.home-hero-benefits article+article{border-top:1px solid #0d1b2a1a;border-left:0}.controls-grid,.tool-actions,.category-columns,.problem-grid,.problem-grid.dense,.answer-grid{grid-template-columns:1fr}.fraction-model-card{min-height:118px}.tool-actions button{min-height:46px}.control-panel,.preview-panel{padding:14px}.contact-form{grid-template-columns:1fr}.sitemap-category-heading{display:grid}.tool-shell{padding:12px}.category-cards{grid-template-columns:1fr}.video-section{grid-template-columns:1fr;padding:28px 0}.video-frame{justify-self:stretch;width:100%;max-width:100%}.preview-panel{max-height:620px;margin-inline:-4px}.home-preview-card{min-height:auto}.worksheet-page{min-width:0;max-width:100%;padding:22px}.worksheet-print-header{display:grid}.problem-item.vertical{width:100%;max-width:128px}}@media print{@page{margin:.35in;size:letter}html,body{background:#fff}.no-print,.site-header,.site-footer,.control-panel,.page-heading,.page-main>.site-shell,.video-section{display:none!important}.page-main,.tool-hero,.site-shell,.tool-shell,.preview-panel,.preview-stack{width:auto;box-shadow:none;background:#fff;border:0;margin:0;padding:0;display:block}.worksheet-page{aspect-ratio:auto;width:7.5in;height:10in;box-shadow:none;page-break-after:always;border:0;margin:0 auto;overflow:hidden}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-leading{syntax:"*";inherits:false}@property --tw-ordinal{syntax:"*";inherits:false}@property --tw-slashed-zero{syntax:"*";inherits:false}@property --tw-numeric-figure{syntax:"*";inherits:false}@property --tw-numeric-spacing{syntax:"*";inherits:false}@property --tw-numeric-fraction{syntax:"*";inherits:false}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}