@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-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{--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--text-sm:.875rem;--text-lg:1.125rem;--text-xl:1.25rem;--text-2xl:1.5rem;--text-3xl:1.875rem;--radius-sm:.25rem;--radius-md:.375rem;--radius-lg:.5rem;--default-font-family:var(--font-family-base);--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,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{.collapse{visibility:collapse}.visible{visibility:visible}.fixed{position:fixed}.relative{position:relative}.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}}.block{display:block}.flex{display:flex}.hidden{display:none}.inline{display:inline}.table{display:table}.h-full{height:100%}.min-h-full{min-height:100%}.flex-shrink{flex-shrink:1}.border-collapse{border-collapse:collapse}.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-col{flex-direction:column}.flex-wrap{flex-wrap:wrap}.border{border-style:var(--tw-border-style);border-width:1px}.antialiased{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.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,)}}:root{--background:#fff;--foreground:#171717;--student-header:#39adba;--student-primary:#39adba;--student-primary-dark:#2a8a96;--student-primary-light:#e8f7f9;--student-accent:#f5c842;--student-header-bg:#30a3b1;--student-primary-strong:#187b8b;--color-star:#be8d00;--joy-gold-bg:#fff4cc;--joy-gold-fill:#f2b705;--joy-gold-line:#6e5100;--joy-orange-bg:#ffe9d9;--joy-orange-fill:#f08a3c;--joy-orange-line:#a3400a;--joy-teal-bg:#e3f5f7;--joy-teal-fill:#39adba;--joy-teal-line:#0f5f69;--joy-purple-bg:#f0eaff;--joy-purple-fill:#9c7ceb;--joy-purple-line:#5a2db5;--joy-gray-bg:#f0f0f0;--joy-gray-fill:#dadada;--joy-gray-line:gray;--color-gain:#085041;--color-gain-bg:#e1f5ee;--accent:var(--student-primary);--accent-strong:var(--student-primary-strong);--accent-strong-hover:var(--joy-teal-line);--accent-light:var(--student-primary-light);--accent-header-bg:var(--student-header-bg);--teacher-header:#185fa5;--teacher-primary:#185fa5;--teacher-primary-dark:#0c3d6b;--teacher-primary-light:#e6f1fb;--store-header:#6b3fa0;--store-primary:#6b3fa0;--store-primary-dark:#4a2b70;--store-primary-light:#f0ebf8;--color-bg:#f7f6f2;--color-surface:#fff;--color-text:#1a1917;--color-text-muted:#999;--color-text-secondary:#6b6b6b;--color-text-sub:#666;--color-border:#00000014;--color-border-strong:#e0e0e0;--color-track:#00000014;--color-disabled-bg:#ececec;--color-disabled-text:#6b6b6b;--color-success:#1d9e75;--color-success-dark:#085041;--color-success-light:#e1f5ee;--color-warning:#ef9f27;--color-warning-dark:#854f0b;--color-warning-light:#faeeda;--color-danger:#993c1d;--color-danger-light:#faece7;--color-info:#185fa5;--color-info-light:#e6f1fb;--depth-1:#9fe1cb;--depth-2:#5dcaa5;--depth-3:#1d9e75;--depth-4:#0f6e56;--depth-5:#085041;--font-family-base:var(--font-biz-udp-gothic), "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;--tracking-base:.04em;--tracking-number:0;--text-label:14px;--text-label-weight:700;--text-label-leading:1.5;--text-label-tracking:.08em;--text-label-color:var(--color-text-secondary);--text-video-title:17px;--text-video-title-weight:700;--text-video-title-leading:1.5;--text-video-title-tracking:var(--tracking-base);--text-video-title-lines:2;--text-title:17px;--text-title-weight:700;--text-title-leading:1.5;--text-title-tracking:var(--tracking-base);--text-list-title:16px;--text-list-title-weight:700;--text-list-title-leading:1.5;--text-list-title-tracking:var(--tracking-base);--text-body:16px;--text-body-weight:400;--text-body-leading:1.8;--text-body-tracking:var(--tracking-base);--text-caption:14px;--text-caption-weight:400;--text-caption-leading:1.6;--text-caption-tracking:var(--tracking-base);--text-caption-color:var(--color-text-secondary);--text-number:28px;--text-number-weight:700;--text-number-leading:1.2;--text-number-tracking:var(--tracking-number);--text-number-sm:20px;--text-number-sm-weight:700;--text-number-sm-leading:1.3;--text-number-sm-tracking:var(--tracking-number);--text-badge:12px;--text-badge-weight:700;--text-badge-leading:1.4;--text-badge-tracking:var(--tracking-base);--text-greeting:15px;--text-greeting-weight:700;--text-greeting-leading:1.5;--text-greeting-tracking:var(--tracking-base);--text-page-title:17px;--text-page-title-weight:700;--text-page-title-leading:1.5;--text-page-title-tracking:var(--tracking-base);--text-footer:12px;--text-footer-weight:400;--text-footer-leading:1.6;--text-footer-tracking:var(--tracking-base);--text-footer-color:var(--color-text-secondary);--text-nav:13px;--text-nav-weight:700;--text-nav-tracking:var(--tracking-base);--icon-badge:16px;--icon-caption:18px;--icon-body:20px;--icon-title:22px;--icon-boost:3px;--text-xs:12px;--text-sm:14px;--text-md:16px;--text-lg:18px;--text-xl:20px;--text-2xl:24px;--text-3xl:32px;--text-hero:40px;--card-radius:12px;--card-padding:20px;--card-gap-inner:14px;--card-gap:16px;--card-shadow:0 1px 2px #0000000a, 0 4px 16px #0000000d;--card-shadow-hero:0 2px 4px #0000000d, 0 8px 24px #00000017;--card-hero-border:2px solid var(--student-primary);--inner-radius:8px;--page-gutter:16px;--page-bottom-space:88px;--divider:1px solid #0000000f;--button-height:44px;--button-height-sm:36px;--button-radius:var(--radius-pill);--button-text:16px;--button-text-sm:14px;--button-text-weight:700;--font-xs:13px;--font-sm:15px;--font-md:16px;--font-lg:17px;--font-xl:18px;--font-2xl:20px;--font-3xl:24px;--font-hero:44px;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:20px;--space-6:24px;--space-8:32px;--tap-min:44px;--bottom-nav-height:64px;--content-reading:640px;--content-max:720px;--teacher-content-max:1120px;--video-max:min(960px, calc((100dvh - 140px) * 16 / 9));--max-width:1280px;--max-width-narrow:480px;--padding:16px;--padding-sm:12px;--padding-lg:24px;--radius-sm:8px;--radius-md:10px;--radius:14px;--radius-lg:20px;--radius-pill:999px}@media (min-width:1024px){:root{--card-gap:20px}}@media (max-width:768px){:root{--font-xs:12px;--font-sm:13px;--font-md:14px;--font-lg:15px;--font-xl:16px;--font-2xl:17px;--font-3xl:19px;--font-hero:36px;--padding:12px;--padding-lg:16px}}[data-theme=teacher]{--accent:#378add;--accent-strong:var(--teacher-primary);--accent-strong-hover:var(--teacher-primary-dark);--accent-light:var(--teacher-primary-light);--accent-header-bg:var(--teacher-header);--card-hero-border:2px solid var(--accent)}body{background:var(--color-bg);color:var(--color-text);font-family:Arial,Helvetica,sans-serif}@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-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}