/*! tailwindcss v4.2.1 | MIT License | https://tailwindcss.com */
@layer theme{:root,:host{--font-sans:ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--spacing:.25rem;--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,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{.visible{visibility:visible}.relative{position:relative}.start{inset-inline-start:var(--spacing)}.block{display:block}.inline{display:inline}.table{display:table}}:root{--paper:#f6f2e8;--paper-deep:#ebe4d5;--ink:#17352d;--ink-soft:#52645e;--green:#0d4a3b;--green-deep:#093a30;--coral:#ed7456;--line:#d8d0c0;--white:#fffdf7;--shadow:0 16px 50px #1d342c14}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--paper);color:var(--ink);-webkit-font-smoothing:antialiased;margin:0;font-family:Noto Sans JP,Hiragino Kaku Gothic ProN,Yu Gothic,sans-serif}a{color:inherit;text-decoration:none}.shell{width:min(1180px,100% - 48px);margin-inline:auto}.site-header{z-index:20;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#f6f2e8f0;border-bottom:1px solid #d8d0c0cc;position:sticky;top:0}.header-inner{justify-content:space-between;align-items:center;gap:28px;min-height:82px;display:flex}.brand{align-items:center;display:inline-flex}.brand strong,.brand small{display:block}.brand strong{letter-spacing:.08em;font-family:Yu Mincho,Hiragino Mincho ProN,serif;font-size:20px}.brand small{color:var(--ink-soft);letter-spacing:.12em;margin-top:2px;font-size:10px}nav{color:#314d45;gap:30px;font-size:13px;font-weight:700;display:flex}nav a,.footer-links a{transition:color .18s}nav a:hover,.footer-links a:hover{color:var(--coral)}.nav-ai-link{border:1px solid var(--green);background:var(--green);color:var(--white);margin-block:-9px;padding:9px 13px}.nav-ai-link:hover{border-color:var(--coral);background:var(--coral);color:var(--white)}.hero{border-bottom:1px solid var(--line);overflow:hidden}.hero-grid{grid-template-columns:minmax(0,1.18fr) minmax(370px,.82fr);align-items:center;gap:88px;min-height:665px;padding-block:88px;display:grid}.eyebrow{color:var(--coral);letter-spacing:.24em;margin:0 0 20px;font-family:Arial,sans-serif;font-size:11px;font-weight:800}.hero h1{letter-spacing:-.04em;margin:0;font-family:Yu Mincho,Hiragino Mincho ProN,serif;font-size:clamp(46px,5.2vw,76px);font-weight:600;line-height:1.2}.hero h1 span{color:var(--green);display:block}.hero-lead{max-width:670px;color:var(--ink-soft);margin:32px 0 0;font-size:16px;line-height:2}.hero-actions{flex-wrap:wrap;gap:12px;margin-top:38px;display:flex}.button{letter-spacing:.03em;border:1px solid #0000;border-radius:4px;justify-content:center;align-items:center;gap:16px;min-height:52px;padding:12px 22px;font-size:13px;font-weight:800;transition:transform .18s,background .18s,color .18s;display:inline-flex}.button:hover{transform:translateY(-2px)}.button-primary{background:var(--green);color:var(--white)}.button-primary:hover{background:var(--green-deep)}.button-quiet,.button-outline{border-color:var(--line);background:0 0}.button-quiet:hover,.button-outline:hover{border-color:var(--green);background:var(--white)}.hero-side{gap:24px;display:grid}.flow-card{background:var(--green);color:var(--white);box-shadow:30px 30px 0 var(--paper-deep);padding:30px 32px 28px;position:relative}.flow-card:before{content:"";background:#ed7456e6;width:72px;height:24px;position:absolute;top:-12px;right:34px;transform:rotate(2deg)}.flow-card-head{letter-spacing:.2em;border-bottom:1px solid #ffffff40;justify-content:space-between;padding-bottom:18px;font-family:Arial,sans-serif;font-size:10px;font-weight:800;display:flex}.flow-card-head p{margin:0}.flow-card-head span{color:#bfd1cb}.flow-card ol{margin:12px 0 0;padding:0;list-style:none}.flow-card li{border-bottom:1px solid #ffffff2e;grid-template-columns:42px 1fr;gap:16px;padding:18px 0;display:grid}.step-number{color:var(--coral);font-family:Georgia,serif;font-size:20px}.flow-card strong{font-family:Yu Mincho,Hiragino Mincho ProN,serif;font-size:20px}.flow-card li p{color:#d4e0dc;margin:5px 0 0;font-size:12px;line-height:1.7}.flow-note{color:#d4e0dc;margin:20px 0 0;font-size:11px;line-height:1.7}.instagram-profile-card{border:1px solid var(--line);background:var(--white);box-shadow:10px 10px 0 var(--paper-deep);grid-template-columns:auto 1fr auto;align-items:center;gap:16px;padding:18px 20px;transition:transform .18s,box-shadow .18s;display:grid}.instagram-profile-card:hover{box-shadow:13px 13px 0 var(--paper-deep);transform:translateY(-3px)}.instagram-mark{color:#fff;letter-spacing:.08em;background:linear-gradient(135deg,#7137a8,#d83372 54%,#f4a63b);border-radius:15px;place-items:center;width:52px;height:52px;font-family:Arial,sans-serif;font-size:12px;font-weight:900;display:grid}.instagram-profile-copy{min-width:0}.instagram-profile-copy small,.instagram-profile-copy strong,.instagram-profile-copy>span{display:block}.instagram-profile-copy small{color:#b53669;letter-spacing:.2em;font-size:8px;font-weight:900}.instagram-profile-copy strong{margin-top:3px;font-family:Yu Mincho,Hiragino Mincho ProN,serif;font-size:17px}.instagram-profile-copy>span{color:var(--ink-soft);margin-top:1px;font-size:10px;font-weight:700}.instagram-profile-copy p{color:var(--ink-soft);margin:7px 0 0;font-size:10px;line-height:1.55}.instagram-arrow{color:#b53669;font-size:18px}.section{padding-block:104px}.section-heading{justify-content:space-between;align-items:end;gap:48px;margin-bottom:42px;display:flex}.section-heading h2,.statement-section h2,.feature-grid h2,.book-copy h2{margin:0;font-family:Yu Mincho,Hiragino Mincho ProN,serif;font-size:clamp(30px,3.3vw,46px);font-weight:600;line-height:1.45}.section-heading>p{max-width:340px;color:var(--ink-soft);margin:0;font-size:13px;line-height:1.8}.entrance-grid{grid-template-columns:repeat(4,1fr);gap:18px;display:grid}.entrance-card{border:1px solid var(--line);background:#fffdf7a3;flex-direction:column;min-height:310px;padding:30px;transition:transform .18s,box-shadow .18s;display:flex}.entrance-card:hover{box-shadow:var(--shadow);transform:translateY(-4px)}.card-number{color:var(--coral);font-family:Georgia,serif;font-size:16px}.entrance-card h3{margin:46px 0 14px;font-family:Yu Mincho,Hiragino Mincho ProN,serif;font-size:23px}.entrance-card p{color:var(--ink-soft);margin:0;font-size:13px;line-height:1.9}.entrance-card a{color:var(--green);margin-top:auto;padding-top:26px;font-size:13px;font-weight:800}.statement-section{background:var(--green);color:var(--white);padding-block:92px}.statement-grid{grid-template-columns:1fr .9fr;align-items:center;gap:96px;display:grid}.eyebrow-light{color:#f2a28f}.statement-copy p{color:#d4e0dc;margin:0;font-size:14px;line-height:2.1}.statement-copy a,.text-link{color:var(--coral);margin-top:28px;font-size:13px;font-weight:800;display:inline-block}.feature-grid{grid-template-columns:1.22fr .78fr;gap:20px;display:grid}.feature-main,.feature-side{border:1px solid var(--line);padding:52px}.feature-main{background:var(--white)}.feature-side{background:var(--paper-deep)}.feature-main>p:not(.eyebrow),.feature-side>p:not(.eyebrow),.book-copy>p:not(.eyebrow){color:var(--ink-soft);font-size:14px;line-height:2}.feature-side h2{font-size:31px}.feature-side .button{margin-top:16px}.feature-side small{color:var(--ink-soft);margin-top:18px;font-size:10px;line-height:1.7;display:block}.book-section{border-top:1px solid var(--line);padding-block:100px}.book-inner{grid-template-columns:320px 1fr;align-items:center;gap:86px;max-width:960px;display:grid}.book-cover-link{width:min(100%,320px);box-shadow:18px 18px 0 var(--green);transition:transform .18s,box-shadow .18s;display:block}.book-cover-link:hover{box-shadow:22px 22px 0 var(--green);transform:translateY(-4px)}.book-cover{border:1px solid var(--line);width:100%;height:auto;display:block}.book-copy .button{margin-top:18px}.subpage{border-bottom:1px solid var(--line);min-height:72vh;padding-block:84px 120px}.subpage .shell{max-width:960px}.back-link{color:var(--ink-soft);margin-bottom:72px;font-size:12px;font-weight:700;display:inline-block}.subpage h1{max-width:850px;margin:0;font-family:Yu Mincho,Hiragino Mincho ProN,serif;font-size:clamp(40px,6vw,68px);font-weight:600;line-height:1.3}.subpage-lead{max-width:720px;color:var(--ink-soft);margin:32px 0 0;font-size:15px;line-height:2}.subpage-intro{border-bottom:1px solid var(--line);padding-block:82px 96px}.subpage-intro .shell{max-width:960px}.subpage-intro h1{max-width:860px;margin:0;font-family:Yu Mincho,Hiragino Mincho ProN,serif;font-size:clamp(42px,6vw,70px);font-weight:600;line-height:1.3}.content-section{padding-block:96px 112px}.content-heading{grid-template-columns:1fr minmax(280px,.58fr);align-items:end;gap:68px;margin-bottom:46px;display:grid}.content-heading h2{margin:0;font-family:Yu Mincho,Hiragino Mincho ProN,serif;font-size:clamp(32px,4vw,48px);font-weight:600}.content-heading>p{color:var(--ink-soft);margin:0;font-size:13px;line-height:1.9}.grade-nav{border:1px solid var(--line);grid-template-columns:repeat(6,1fr);gap:0;margin-bottom:72px;display:grid}.grade-nav a{border-right:1px solid var(--line);text-align:center;background:#fffdf780;padding:16px 8px;font-size:13px;font-weight:800}.grade-nav a:last-child{border-right:0}.grade-nav a:hover{background:var(--green);color:var(--white)}.grade-list{border-top:1px solid var(--line)}.grade-block{border-bottom:1px solid var(--line);grid-template-columns:minmax(230px,.42fr) 1fr;gap:72px;padding-block:58px;scroll-margin-top:104px;display:grid}.grade-title{align-items:flex-start;gap:20px;display:flex}.grade-title>span{color:var(--coral);padding-top:8px;font-family:Georgia,serif;font-size:14px}.grade-title p{color:var(--ink-soft);letter-spacing:.08em;margin:0 0 8px;font-size:11px;font-weight:700}.grade-title h2{margin:0;font-family:Yu Mincho,Hiragino Mincho ProN,serif;font-size:36px;font-weight:600}.grade-content>p{max-width:700px;color:var(--ink-soft);margin:0;font-size:14px;line-height:2}.unit-tags{flex-wrap:wrap;gap:8px;margin-top:26px;display:flex}.unit-tags span{border:1px solid var(--line);color:#425b54;background:#fffdf780;padding:8px 12px;font-size:11px;font-weight:700}.note-band{background:var(--paper-deep);padding-block:88px}.note-band-inner{grid-template-columns:.65fr 1fr;gap:84px;display:grid}.note-band h2{margin:0;font-family:Yu Mincho,Hiragino Mincho ProN,serif;font-size:36px;font-weight:600;line-height:1.45}.note-band ol{margin:0;padding:0;list-style:none}.note-band li{border-bottom:1px solid #cec5b4;grid-template-columns:34px 1fr;gap:16px;padding:20px 0;display:grid}.note-band li:first-child{padding-top:0}.note-band li>span{color:var(--coral);font-family:Georgia,serif;font-size:20px}.note-band li p{color:var(--ink-soft);margin:0;font-size:13px;line-height:1.8}.note-band li strong{color:var(--ink);font-size:15px;display:block}.resource-grid{grid-template-columns:repeat(2,1fr);gap:16px;display:grid}.resource-card{border:1px solid var(--line);background:#fffdf78a;flex-direction:column;min-height:270px;padding:28px;display:flex}.resource-meta{justify-content:space-between;align-items:center;display:flex}.resource-meta span{color:var(--coral);font-family:Georgia,serif;font-size:15px}.resource-meta small{background:var(--paper-deep);color:var(--ink-soft);padding:5px 8px;font-size:9px;font-weight:800}.resource-card h3{margin:34px 0 12px;font-family:Yu Mincho,Hiragino Mincho ProN,serif;font-size:23px}.resource-card p{color:var(--ink-soft);margin:0;font-size:12px;line-height:1.9}.resource-card a{color:var(--green);margin-top:auto;padding-top:24px;font-size:12px;font-weight:800}.links-section{background:var(--paper-deep);padding-block:100px}.useful-grid{grid-template-columns:repeat(3,1fr);gap:16px;display:grid}.useful-card{border-top:3px solid var(--green);background:var(--white);padding:30px}.useful-card h3{min-height:54px;margin:0 0 22px;font-family:Yu Mincho,Hiragino Mincho ProN,serif;font-size:20px}.useful-card ul{margin:0;padding:0;list-style:none}.useful-card li{border-top:1px solid var(--line)}.useful-card a{color:var(--ink-soft);justify-content:space-between;gap:10px;padding:14px 0;font-size:11px;font-weight:700;display:flex}.useful-card a:hover{color:var(--coral)}.plan-list{border-top:1px solid var(--line)}.plan-row{border-bottom:1px solid var(--line);grid-template-columns:180px 1fr auto;align-items:center;gap:44px;padding:34px 0;display:grid}.plan-grade{align-items:center;gap:16px;display:flex}.plan-grade span{color:var(--coral);font-family:Georgia,serif}.plan-grade h3{margin:0;font-family:Yu Mincho,Hiragino Mincho ProN,serif;font-size:24px}.plan-row ul{flex-wrap:wrap;gap:8px 20px;margin:0;padding:0;list-style:none;display:flex}.plan-row li{color:var(--ink-soft);font-size:12px}.plan-row a{color:var(--green);white-space:nowrap;font-size:11px;font-weight:800}.video-section{background:var(--green);color:var(--white);padding-block:100px}.content-heading-light>p{color:#ccdbd6}.video-grid{grid-template-columns:repeat(2,1fr);gap:20px;display:grid}.video-card{color:var(--ink);background:#f5f0e5;overflow:hidden}.video-frame{aspect-ratio:16/9;background:#082f27;position:relative}.video-frame iframe{border:0;width:100%;height:100%;position:absolute;inset:0}.video-copy{padding:26px}.video-copy small{color:var(--coral);letter-spacing:.1em;font-size:9px;font-weight:800}.video-copy h3{margin:10px 0 8px;font-family:Yu Mincho,Hiragino Mincho ProN,serif;font-size:21px}.video-copy p{color:var(--ink-soft);margin:0;font-size:11px;line-height:1.8}.video-note{color:#b8cec7;margin:24px 0 0;font-size:10px}.about-grid{grid-template-columns:minmax(250px,.52fr) 1fr;gap:100px;display:grid}.about-name h2{margin:0;font-family:Yu Mincho,Hiragino Mincho ProN,serif;font-size:42px;font-weight:600}.about-name>span{color:var(--ink-soft);letter-spacing:.14em;margin-top:8px;font-size:11px;display:block}.about-copy>p{color:var(--ink-soft);margin:0 0 22px;font-size:14px;line-height:2.1}.activity-list{border-top:1px solid var(--line);margin:46px 0 0;padding:0;list-style:none}.activity-list li{border-bottom:1px solid var(--line);padding:14px 0;font-size:12px;font-weight:700}.publication-section{background:var(--green);color:var(--white);padding-block:94px}.publication-grid{grid-template-columns:.5fr 1fr;gap:96px;display:grid}.publication-grid h2{margin:0;font-family:Yu Mincho,Hiragino Mincho ProN,serif;font-size:42px;font-weight:600}.publication-main{border-bottom:1px solid #ffffff40;padding-bottom:34px}.publication-main small{color:#f2a28f;font-size:10px;font-weight:800}.publication-main h3{margin:12px 0 14px;font-family:Yu Mincho,Hiragino Mincho ProN,serif;font-size:28px}.publication-main p,.publication-other{color:#d4e0dc;font-size:12px;line-height:1.9}.publication-main a{color:#f2a28f;margin-top:18px;font-size:12px;font-weight:800;display:inline-block}.publication-other{padding-top:24px}.publication-other p{margin:0 0 8px}.publication-other strong{color:var(--white)}.contact-section{padding-block:92px 60px}.contact-inner{justify-content:space-between;align-items:center;gap:72px;padding-bottom:72px;display:flex}.contact-inner h2{margin:0;font-family:Yu Mincho,Hiragino Mincho ProN,serif;font-size:34px}.contact-inner p:not(.eyebrow){max-width:620px;color:var(--ink-soft);font-size:13px;line-height:1.9}.site-note{border-top:1px solid var(--line);padding-top:26px}.site-note p{max-width:850px;color:var(--ink-soft);margin:0;font-size:10px;line-height:1.8}footer{border-top:1px solid var(--line);background:#eee8dc;padding-block:44px}.footer-inner{grid-template-columns:1fr auto auto;align-items:center;gap:54px;display:grid}.footer-inner strong{font-family:Yu Mincho,Hiragino Mincho ProN,serif;font-size:18px}.footer-inner p{color:var(--ink-soft);margin:6px 0 0;font-size:11px}.footer-links{flex-wrap:wrap;gap:12px 24px;font-size:12px;font-weight:700;display:flex}.footer-inner>small{color:var(--ink-soft);font-size:10px}.legal-page{max-width:960px}.legal-sync-status{margin-bottom:24px}.legal-document{border:1px solid var(--line);background:#fffdf7b8;padding:58px 64px 68px}.legal-document>:first-child{margin-top:0}.legal-document>:last-child{margin-bottom:0}.legal-document h2{border-bottom:1px solid var(--line);margin:48px 0 16px;padding-bottom:12px;font-family:Yu Mincho,Hiragino Mincho ProN,serif;font-size:25px;font-weight:600}.legal-document p,.legal-document li{color:var(--ink-soft);font-size:14px;line-height:2}.legal-document p{margin:0 0 20px}.legal-document ul{gap:9px;margin:0 0 22px;padding-left:1.4em;display:grid}.legal-document li::marker{color:var(--coral)}.archive-summary{border:1px solid var(--line);background:#fffdf79e;align-items:center;gap:34px;margin-bottom:76px;padding:24px 28px;display:flex}.archive-summary>div{align-items:baseline;gap:8px;display:flex}.archive-summary strong{color:var(--green);font-family:Georgia,serif;font-size:32px;font-weight:500}.archive-summary span{color:var(--ink-soft);font-size:11px;font-weight:800}.archive-summary p{color:var(--ink-soft);margin:0 0 0 auto;font-size:11px}.sync-status{color:var(--ink-soft);align-items:center;gap:.55rem;margin:0 0 1.5rem;font-size:.82rem;display:flex}.sync-status span{background:#3f8b62;border-radius:999px;flex:none;width:.48rem;height:.48rem;display:inline-block;box-shadow:0 0 0 4px #3f8b621f}.grade-selector{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;display:grid}.grade-select-card{border:1px solid var(--line);background:#fffdf7b8;grid-template-columns:86px 1fr;gap:22px;min-height:300px;padding:32px;transition:transform .18s,box-shadow .18s,border-color .18s;display:grid;position:relative;overflow:hidden}.grade-select-card:hover{border-color:var(--green);box-shadow:var(--shadow);transform:translateY(-4px)}.grade-select-number{color:var(--coral);font-family:Georgia,serif;font-size:72px;line-height:.9}.grade-select-card>div>p:first-child{color:var(--ink-soft);letter-spacing:.18em;margin:0;font-size:9px;font-weight:900}.grade-select-card h2{margin:9px 0 0;font-family:Yu Mincho,Hiragino Mincho ProN,serif;font-size:34px;font-weight:600}.grade-select-description{color:var(--ink-soft);margin:14px 0 0;font-size:12px;line-height:1.85}.grade-select-card footer{border-top:1px solid var(--line);grid-column:1/-1;justify-content:space-between;align-items:end;gap:20px;margin-top:auto;padding-top:24px;font-size:11px;display:flex}.grade-select-card footer strong{color:var(--green)}.grade-select-card footer span{color:var(--coral);font-weight:800}.boardwork-level-intro .shell{max-width:1040px}.boardwork-breadcrumb{width:auto;color:var(--ink-soft);white-space:normal;border:0;gap:10px;margin:0 0 54px;padding:0;font-size:11px;font-weight:700;display:flex;overflow:visible}.boardwork-breadcrumb a:hover{color:var(--coral)}.boardwork-breadcrumb span[aria-current=page]{color:var(--ink)}.unit-selector{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;display:grid}.unit-select-card{border:1px solid var(--line);background:#fffdf7b8;flex-direction:column;min-height:210px;padding:24px;transition:transform .18s,box-shadow .18s,border-color .18s;display:flex}.unit-select-card:hover{border-color:var(--green);box-shadow:var(--shadow);transform:translateY(-3px)}.unit-select-card>span{color:var(--coral);font-family:Georgia,serif;font-size:13px}.unit-select-card h2{margin:34px 0 20px;font-family:Yu Mincho,Hiragino Mincho ProN,serif;font-size:21px;font-weight:600;line-height:1.5}.unit-select-card p{color:var(--green);margin:auto 0 0;font-size:11px;font-weight:800}.boardwork-empty{border:1px solid var(--line);text-align:center;background:#fffdf79e;padding:64px}.boardwork-empty h2{margin:0;font-family:Yu Mincho,Hiragino Mincho ProN,serif;font-size:28px;font-weight:600}.boardwork-empty p{color:var(--ink-soft);margin:14px 0 0;font-size:12px;line-height:1.8}.gallery-groups{gap:86px;display:grid}.gallery-group{scroll-margin-top:110px}.gallery-group-heading{grid-template-columns:minmax(220px,.52fr) 1fr;align-items:end;column-gap:48px;margin-bottom:28px;display:grid}.gallery-group-heading .eyebrow{grid-column:1/-1;margin-bottom:12px}.gallery-group-heading h3{margin:0;font-family:Yu Mincho,Hiragino Mincho ProN,serif;font-size:clamp(28px,3vw,40px);font-weight:600;line-height:1.35}.gallery-group-heading>p:last-child{max-width:650px;color:var(--ink-soft);margin:0;font-size:12px;line-height:1.9}.media-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;display:grid}.media-card{border:1px solid var(--line);background:var(--white);min-width:0;color:var(--ink);cursor:zoom-in;text-align:left;border-radius:0;padding:0;transition:transform .18s,box-shadow .18s}.media-card:hover{box-shadow:var(--shadow);transform:translateY(-4px)}.media-card:focus-visible,.lightbox button:focus-visible,.plan-doc-card:focus-visible,.resource-actions a:focus-visible{outline:3px solid var(--coral);outline-offset:3px}.media-thumbnail{aspect-ratio:4/3;background:#ddd7ca;place-items:center;display:grid;position:relative;overflow:hidden}.media-thumbnail img{object-fit:cover;width:100%;height:100%}.media-zoom{color:var(--white);letter-spacing:.08em;background:#0d4a3be6;padding:6px 9px;font-size:9px;font-weight:800;position:absolute;bottom:10px;right:10px}.media-caption{padding:15px 16px 17px;font-size:12px;font-weight:800;display:block}.modal-open{overflow:hidden}.lightbox{z-index:100;color:var(--white);background:#051814f0;grid-template-columns:minmax(48px,.1fr) minmax(0,1fr) minmax(48px,.1fr);place-items:center;padding:66px 28px 28px;display:grid;position:fixed;inset:0}.lightbox-close{color:var(--white);cursor:pointer;font:inherit;background:0 0;border:1px solid #ffffff59;padding:9px 12px;font-size:11px;font-weight:800;position:absolute;top:20px;right:24px}.lightbox-close span{vertical-align:-1px;margin-left:8px;font-size:18px}.lightbox-arrow{width:46px;height:46px;color:var(--white);cursor:pointer;background:#ffffff0f;border:1px solid #ffffff59;border-radius:50%;font-size:20px}.lightbox-prev{grid-column:1}.lightbox-next{grid-column:3}.lightbox-figure{grid-column:2;place-items:center;min-width:0;max-width:100%;margin:0;display:grid}.lightbox-figure img{object-fit:contain;max-width:100%;max-height:calc(100vh - 154px);box-shadow:0 18px 70px #0000005c}.lightbox-figure figcaption{text-align:center;margin-top:14px;font-size:12px;font-weight:800}.lightbox-figure figcaption span{color:#b8cec7;margin-right:10px;font-weight:500}.plan-groups{gap:64px;display:grid}.plan-group-title{border-bottom:1px solid var(--line);align-items:baseline;gap:15px;margin-bottom:20px;padding-bottom:15px;display:flex}.plan-group-title>span{color:var(--coral);font-family:Georgia,serif;font-size:13px}.plan-group-title h3{margin:0;font-family:Yu Mincho,Hiragino Mincho ProN,serif;font-size:29px;font-weight:600}.plan-group-title small{color:var(--ink-soft);margin-left:auto;font-size:10px;font-weight:800}.plan-doc-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;display:grid}.plan-doc-card{border:1px solid var(--line);background:#fffdf799;flex-direction:column;min-height:172px;padding:20px;transition:transform .18s,border-color .18s,box-shadow .18s;display:flex}.plan-doc-card:hover{border-color:var(--green);box-shadow:var(--shadow);transform:translateY(-3px)}.plan-doc-card .pdf-mark{background:var(--coral);color:#17352d;letter-spacing:.08em;align-self:flex-start;padding:5px 7px;font-family:Arial,sans-serif;font-size:8px;font-weight:900}.plan-doc-card strong{margin-top:20px;font-family:Yu Mincho,Hiragino Mincho ProN,serif;font-size:17px;line-height:1.55}.plan-doc-card>span:last-child{color:var(--green);margin-top:auto;padding-top:16px;font-size:10px;font-weight:800}.resource-pdf-section{background:var(--paper-deep);padding-block:100px}.resource-actions{flex-wrap:wrap;gap:8px 18px;margin-top:auto;padding-top:24px;display:flex}.resource-card .resource-actions a{margin:0;padding:0}.pdf-page{padding-block:64px 84px}.pdf-toolbar{justify-content:space-between;align-items:end;gap:48px;margin-bottom:26px;display:flex}.pdf-toolbar .back-link{margin-bottom:36px}.pdf-toolbar .eyebrow{margin-bottom:10px}.pdf-toolbar h1{margin:0;font-family:Yu Mincho,Hiragino Mincho ProN,serif;font-size:clamp(28px,4vw,48px);font-weight:600;line-height:1.35}.pdf-actions{flex:none;gap:10px;display:flex}.pdf-actions .button{min-height:46px;padding-inline:16px;font-size:11px}.pdf-frame-wrap{border:1px solid var(--line);background:#d7d2c8;padding:12px}.pdf-frame{background:var(--white);border:0;width:100%;height:min(78vh,960px);display:block}.pdf-fallback{color:var(--ink-soft);margin:10px 4px 0;font-size:10px;line-height:1.7}@media (width<=900px){.header-inner{flex-wrap:wrap;padding-block:12px}nav{border-top:1px solid var(--line);white-space:nowrap;scrollbar-width:none;width:100%;padding-top:11px;overflow-x:auto}nav::-webkit-scrollbar{display:none}.hero-grid,.statement-grid,.feature-grid{grid-template-columns:1fr}.hero-grid{gap:56px}.flow-card{max-width:620px}.entrance-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.entrance-card{min-height:240px}.entrance-card h3{margin-top:28px}.book-inner{grid-template-columns:260px 1fr;gap:54px}.book-cover-link{width:min(260px,100%)}.content-heading,.note-band-inner,.about-grid,.publication-grid{grid-template-columns:1fr;gap:38px}.grade-block{grid-template-columns:1fr;gap:28px}.useful-grid{grid-template-columns:1fr}.plan-row{grid-template-columns:150px 1fr}.plan-row>a{grid-column:2}.media-grid,.plan-doc-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.pdf-toolbar{flex-direction:column;align-items:flex-start;gap:26px}.unit-selector{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width<=680px){.shell{width:min(100% - 32px,1180px)}.header-inner{flex-wrap:wrap;min-height:72px;padding-block:12px}nav{border-top:1px solid var(--line);white-space:nowrap;scrollbar-width:none;gap:22px;width:100%;padding-top:11px;display:flex;overflow-x:auto}nav::-webkit-scrollbar{display:none}.nav-ai-link{margin-block:-6px;padding:6px 10px}.hero-grid{grid-template-columns:1fr;min-height:auto;padding-block:64px 72px}.hero h1{font-size:42px;line-height:1.28}.hero-lead{font-size:14px}.hero-actions .button{width:100%}.flow-card{box-shadow:12px 12px 0 var(--paper-deep);padding-inline:24px}.instagram-profile-card{box-shadow:7px 7px 0 var(--paper-deep)}.section{padding-block:74px}.entrance-grid{grid-template-columns:1fr}.section-heading{display:block}.section-heading>p{margin-top:18px}.statement-section{padding-block:70px}.statement-grid{gap:40px}.feature-main,.feature-side{padding:34px 26px}.book-inner{grid-template-columns:1fr;gap:64px}.book-cover-link{width:min(280px,100% - 18px);margin-inline:auto}.legal-document{padding:38px 24px 46px}.legal-document h2{margin-top:38px;font-size:22px}.footer-inner{grid-template-columns:1fr;gap:26px}.subpage-intro{padding-block:58px 68px}.back-link{margin-bottom:52px}.content-section{padding-block:68px 80px}.grade-nav{grid-template-columns:repeat(3,1fr)}.grade-nav a:nth-child(3){border-right:0}.grade-nav a:nth-child(-n+3){border-bottom:1px solid var(--line)}.grade-block{padding-block:42px}.resource-grid,.video-grid{grid-template-columns:1fr}.archive-summary{flex-wrap:wrap;gap:18px 28px;margin-bottom:56px}.archive-summary p{width:100%;margin-left:0}.grade-selector,.unit-selector{grid-template-columns:1fr}.grade-select-card{grid-template-columns:64px 1fr;min-height:270px;padding:26px}.grade-select-number{font-size:58px}.boardwork-breadcrumb{border:0;width:auto;margin-bottom:42px;padding:0;overflow:visible}.boardwork-empty{padding:46px 24px}.gallery-groups{gap:64px}.gallery-group-heading{grid-template-columns:1fr;gap:12px}.media-grid,.plan-doc-grid{grid-template-columns:1fr}.media-thumbnail{aspect-ratio:16/11}.lightbox{grid-template-columns:1fr 1fr;padding:62px 14px 18px}.lightbox-figure{grid-area:1/1/auto/-1}.lightbox-prev,.lightbox-next{z-index:1;grid-row:2;margin-top:14px}.lightbox-prev{grid-column:1;justify-self:end;margin-right:8px}.lightbox-next{grid-column:2;justify-self:start;margin-left:8px}.lightbox-figure img{max-height:calc(100vh - 182px)}.resource-pdf-section{padding-block:74px}.pdf-page{padding-block:46px 64px}.pdf-toolbar .back-link{margin-bottom:28px}.pdf-actions{flex-direction:column;width:100%}.pdf-actions .button{width:100%}.pdf-frame-wrap{border-inline:0;width:100%;padding:6px}.pdf-frame{height:72vh}.links-section,.video-section{padding-block:74px}.plan-row{grid-template-columns:1fr;gap:18px}.plan-row>a{grid-column:1}.contact-inner{display:block}.contact-inner .button{margin-top:24px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{transition-duration:.01ms!important}}.video-frame video{object-fit:contain;width:100%;height:100%}.video-copy a{text-underline-offset:.2em;margin-top:1rem;text-decoration:underline;display:inline-block}.resource-actions a,.plan-doc-card a{overflow-wrap:anywhere}.lesson-notes{white-space:pre-wrap;margin:1.5rem 0}.lesson-attachments{margin-top:1.5rem}.lesson-attachments>a{overflow-wrap:anywhere;margin:.75rem 0;padding:.5rem 0;display:block}.unit-documents{border:1px solid var(--ink-soft);border-radius:.75rem;margin:0 0 3rem;padding:1.5rem}.unit-documents h2{margin:0 0 .75rem;font-size:1.25rem}.unit-documents p{margin:0 0 1rem;font-size:1rem;line-height:1.7}.unit-documents ul{gap:.75rem;margin:0;padding:0;list-style:none;display:grid}.unit-documents a{background:var(--paper);text-underline-offset:.2em;overflow-wrap:anywhere;border-radius:.5rem;padding:.75rem 1rem;font-size:1rem;line-height:1.7;text-decoration:underline;display:block}.unit-documents a:focus-visible{outline-offset:3px;outline:2px solid}.lesson-pdf{border:1px solid #bdc6ce;border-radius:.75rem;margin:1rem 0;padding:1rem}.lesson-pdf summary{cursor:pointer;font-weight:700}.lesson-pdf iframe{background:#fff;border:0;width:100%;height:min(75vh,800px);margin:1rem 0;display:block}.lesson-pdf>a{margin:.5rem 1.5rem 0 0;text-decoration:underline;display:inline-block}
