/* The learning centre has its own calm paper palette; lesson pages stay scoped. */
.study-page{--study-bg:#f5f7f1;--study-panel:#fffef9;--study-ink:#183d43;--study-muted:#526c70;--study-line:#d7e1da;--study-green:#17604e;background:var(--study-bg);color:var(--study-ink);font-family:Inter,'Segoe UI',sans-serif;color-scheme:light}
.study-page *{box-sizing:border-box}.study-page a{color:inherit;text-decoration:none;-webkit-text-fill-color:currentColor}.study-page button,.study-page input,.study-page select{font:inherit}.study-page [hidden]{display:none!important}
.study-page button,.study-page a,.study-page select{touch-action:manipulation}.study-page button{cursor:pointer}.study-page button:disabled{opacity:.6;cursor:wait}.study-page p{line-height:1.65}.study-page h1,.study-page h2,.study-page h3,.study-page p{overflow-wrap:break-word}.study-page h1,.study-page h2,.study-page h3{font-family:inherit;color:var(--study-ink)}
.study-page :is(a,button,select,input):focus-visible{outline:3px solid #17604e;outline-offset:4px}.study-page .seo-directory{background:#edf2eb;color:var(--study-ink);border-color:var(--study-line)}.study-page .seo-directory a{color:#17604e}.study-page .seo-directory a:hover{color:#0d4235}
.study-header{position:relative;z-index:20;border-bottom:1px solid var(--study-line);background:#f5f7f1f5;padding:16px 28px}.study-header-inner{max-width:1200px;margin:auto;display:flex;align-items:center;gap:22px}
.study-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:750;letter-spacing:-.4px}.study-brand>span{display:grid;place-items:center;width:34px;height:34px;border-radius:11px;background:var(--study-green);color:#fffef9;font-size:20px}
.study-nav{display:flex;align-items:center;gap:20px;margin-left:auto;font-size:13px}.study-nav>a{display:flex;align-items:center;min-height:44px;color:#526c70;white-space:nowrap}.study-nav>a:hover,.study-nav>a[aria-current]{color:#17604e}.study-nav>a[aria-current]{text-decoration:underline;text-underline-offset:8px;text-decoration-color:#17604e}
.study-header .lang-switch{order:3;min-height:44px;min-width:60px;border:1px solid #a6bbb1;background:#fffef9;color:#183d43;border-radius:8px;padding:8px}.study-header .lang-switch option{background:#fffef9;color:#183d43}
.study-header .header__account{gap:6px;flex-wrap:wrap;max-width:240px}.study-header .header__account-link{min-height:40px;display:flex;align-items:center;justify-content:center;color:#183d43;background:#fffef9;border-color:#a6bbb1}.study-header .header__account-link:hover{color:#183d43;background:#e8f1e9;border-color:#17604e}.study-header .header__account-link--primary{background:#17604e;border-color:#17604e;color:#fffef9;-webkit-text-fill-color:#fffef9}.study-header .header__account-link--primary:hover{background:#0d4939;border-color:#0d4939;color:#fffef9;-webkit-text-fill-color:#fffef9}
.study-menu-toggle{display:none;min-height:44px;border:1px solid #a6bbb1;border-radius:8px;background:#fffef9;color:#183d43;padding:9px 13px}.study-menu-toggle:hover{background:#e8f1e9;color:#183d43}

.study-main{max-width:1200px;margin:auto;padding:28px 28px 44px;outline:none}
.study-steps{display:flex;align-items:center;gap:24px;list-style:none;margin:0 0 32px;padding:0;font-size:13px;color:#526c70}
.study-steps li{display:flex;align-items:center;gap:9px}.study-steps li>span{display:grid;place-items:center;width:28px;height:28px;border-radius:50%;background:#e6eee2;border:1px solid #b8c9be;font-size:12px}.study-steps b{font-weight:500}.study-steps [aria-current]>span{background:#17604e;color:#fffef9;border-color:#17604e}.study-steps [aria-current]>b{font-weight:700;color:#17604e}
.study-eyebrow{display:block;font-size:10px;font-weight:750;letter-spacing:.1em;color:#17604e;margin:0 0 12px}
.subject-hero{max-width:750px;margin:0 0 24px}.subject-hero h1,.subject-heading h1{font-size:clamp(30px,4vw,44px);line-height:1.12;letter-spacing:-.04em;margin:0 0 15px}.study-intro,.subject-heading>p{font-size:15px;line-height:1.7;color:#526c70;margin:0}
.study-search{display:flex;align-items:center;gap:12px;padding:0 15px;background:#fffef9;border:1px solid #b8c9be;border-radius:10px;min-width:0;flex:1}.subject-search{max-width:560px;margin-bottom:24px}.study-search>span[aria-hidden]{font-size:26px;color:#17604e}.study-search:focus-within{border-color:#17604e;box-shadow:0 0 0 2px #17604e20}.study-search input{width:100%;min-width:0;height:48px;border:0;background:none;color:#183d43;outline:none!important;box-shadow:none!important;font-size:14px}.study-search input::placeholder{color:#526c70}
.study-subjects{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-bottom:32px}
.subject-card{display:flex;flex-direction:column;min-width:0;padding:22px;background:#fffef9;border:1px solid #d7e1da;border-radius:15px;transition:background .15s,border-color .15s}.subject-card:hover{background:#edf4e8;border-color:#17604e;color:#183d43}.subject-icon{width:48px;height:36px;display:block;margin-bottom:16px}.learning-art{display:block;width:100%;height:auto}.subject-card h2{font-size:19px;letter-spacing:-.02em;line-height:1.3;margin:0 0 10px}.subject-card p{font-size:13px;color:#526c70;margin:0 0 22px}.subject-card-bottom{display:flex;align-items:center;gap:10px;justify-content:space-between;margin-top:auto;padding-top:12px;border-top:1px solid #d7e1da;font-size:11px;color:#17604e}.subject-card-bottom b{font-size:20px;font-weight:500}
.study-how{padding:23px 26px;background:#edf3e9;border:1px solid #d7e1da;border-radius:14px}.study-how h2{font-size:18px;margin:0 0 16px}.study-how>div{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.study-how p{margin:0;font-size:13px;color:#526c70}.study-how strong{display:block;color:#183d43;margin-bottom:5px}
.study-breadcrumb{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-bottom:25px;font-size:13px;color:#526c70}.study-breadcrumb a{min-height:36px;display:inline-flex;align-items:center;color:#17604e}.study-breadcrumb a:hover{text-decoration:underline;text-underline-offset:4px}.study-breadcrumb [aria-current]{padding:6px 10px;background:#e6eee2;border-radius:7px;color:#183d43}.subject-heading{max-width:730px;margin-bottom:32px}
#grade-picker h2{font-size:24px;line-height:1.3;margin:0 0 12px}.study-section-intro{font-size:14px;color:#526c70;margin:0 0 24px;max-width:740px}
.study-grades{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-bottom:30px}.grade-card{position:relative;display:flex;flex-direction:column;gap:8px;padding:18px 38px 18px 18px;border:1px solid #d7e1da;border-radius:11px;background:#fffef9;min-width:0}.grade-card:hover{background:#edf4e8;border-color:#17604e;color:#183d43}.grade-card strong{font-size:16px;line-height:1.35;font-weight:650}.grade-card>span{font-size:11px;line-height:1.5;color:#526c70}.grade-card>b{position:absolute;right:16px;top:19px;font-size:18px;color:#17604e;font-weight:500}
.study-section-heading{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:22px}.study-section-heading h2{font-size:24px;line-height:1.3;margin:0}.study-button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:11px 17px;border:1px solid #acbfb5;border-radius:9px;font-size:13px;font-weight:650;background:#fffef9;color:#183d43;-webkit-text-fill-color:currentColor;cursor:pointer}.study-page .study-button-secondary:hover{background:#e6eee2;border-color:#17604e;color:#183d43}.study-page .study-button-primary{background:#17604e;border-color:#17604e;color:#fffef9}.study-page .study-button-primary:hover{background:#0d4939;color:#fffef9}
.study-search-row{display:flex;gap:16px;margin-bottom:14px}.study-format{display:flex;align-items:center;gap:12px;font-size:12px;color:#526c70;min-width:0}.study-format select{min-height:46px;min-width:0;padding:10px 12px;border:1px solid #b8c9be;background:#fffef9;color:#183d43;border-radius:9px;font:inherit;max-width:100%;color-scheme:light}.study-format select option{background:#fffef9;color:#183d43}.study-search-row>.study-format select{max-width:260px}
.study-refinements{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;padding:14px;background:#edf3e9;border:1px solid #d7e1da;border-radius:11px}.study-refinements .study-format{flex-direction:column;align-items:stretch;gap:7px}.study-filter-help{font-size:12px;color:#526c70;margin:12px 0 20px;line-height:1.6}.study-grade-note{padding:16px;background:#edf3e9;border:1px solid #b8c9be;border-radius:10px;font-size:13px;color:#315f59}
.study-catalog-meta{display:flex;justify-content:space-between;align-items:center;gap:12px;min-height:50px}.study-catalog-meta p{font-size:13px;color:#526c70;margin:0}.study-reset{border:0;background:none;color:#17604e;font-size:12px;min-height:44px;padding:8px;cursor:pointer}.study-reset:hover{color:#0d4939;text-decoration:underline}
.study-activity-group{margin-bottom:32px}.study-group-heading{display:flex;align-items:center;gap:10px;margin-bottom:14px}.study-group-heading h3{font-size:19px;line-height:1.35;margin:0}.study-group-heading>span{display:grid;place-items:center;min-width:26px;height:26px;border-radius:50%;background:#e6eee2;color:#17604e;font-size:12px}.study-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.study-card{display:flex;flex-direction:column;min-width:0;padding:22px;border:1px solid #d7e1da;border-radius:12px;background:#fffef9;transition:background .15s,border-color .15s}.study-card:hover{background:#edf4e8;border-color:#17604e;color:#183d43}.study-card-top{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:16px}.study-card-icon{display:block;width:42px;height:32px;flex-shrink:0}.study-card-format{font-size:11px;color:#526c70}.study-card h3{font-size:18px;line-height:1.35;margin:0 0 10px}.study-card>p{font-size:13px;color:#526c70;margin:0 0 20px}.study-card-meta{display:flex;flex-wrap:wrap;gap:6px 10px;margin-top:auto;font-size:11px;line-height:1.5;color:#526c70}.study-access{color:#79551b}.study-card-bottom{display:flex;justify-content:space-between;gap:12px;padding-top:13px;margin-top:16px;border-top:1px solid #d7e1da;font-size:12px;color:#17604e}.study-card-bottom b{font-size:18px}
.study-resume{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;background:#edf3e9;border:1px solid #b8c9be;border-radius:12px;padding:20px 24px;margin-top:30px}.study-resume .study-eyebrow{margin-bottom:8px;font-size:9px}.study-resume strong{font-size:16px;line-height:1.4}.study-resume>div{min-width:0}
.study-empty,.study-load-note{padding:22px;border:1px dashed #a5b9a9;border-radius:12px;background:#edf3e9;font-size:14px;color:#526c70}.study-empty strong{font-size:19px;color:#183d43}.study-empty p{margin:10px 0 0}.study-load-note{margin-top:24px}.study-load-note p{margin:0 0 12px}.study-storage-note{font-size:12px;color:#526c70;line-height:1.65;margin:25px 0 0;max-width:850px}
.study-footer{max-width:1144px;margin:auto;padding:25px 0 32px;border-top:1px solid #d7e1da;display:flex;flex-wrap:wrap;align-items:center;gap:24px;font-size:12px;color:#526c70}.study-footer>a:first-child{font-size:15px;font-weight:750;color:#183d43}.study-footer>a:last-child{margin-left:auto}.study-footer a:hover{color:#17604e}
.study-skip{position:fixed;top:10px;left:10px;z-index:100;background:#fffef9;color:#183d43;padding:13px 18px;border-radius:9px;transform:translateY(-160%)}.study-skip:focus{transform:none}.study-sr{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
body.study-page .portal-report{background:#e6eee2;color:#183d43;border-color:#d7dfd6}body.study-page .portal-report small{color:#526c70}body.study-page .portal-report a{background:#fffef9;color:#183d43!important;border-color:#acbfb5}
@media(max-width:1200px){.study-footer{margin:0 28px}.study-header-inner{gap:15px}.study-nav{gap:14px}.study-nav>a{font-size:12px}}
@media(max-width:1060px){.study-nav{display:none;position:absolute;left:20px;right:20px;top:calc(100% - 2px);padding:16px;background:#fffef9;border:1px solid #b8c9be;border-radius:12px;box-shadow:0 18px 45px #183d4320}.study-nav.is-open{display:flex;flex-direction:column;align-items:stretch;gap:4px}.study-nav>a{padding:10px 14px;font-size:14px}.study-header .header__account{max-width:none;justify-content:flex-start;padding:10px;gap:12px}.study-header .lang-switch{order:0;margin-left:auto}.study-menu-toggle{display:inline-flex;align-items:center;justify-content:center}.study-subjects,.study-grades{grid-template-columns:repeat(3,minmax(0,1fr))}.study-cards{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:740px){.study-subjects,.study-grades{grid-template-columns:repeat(2,minmax(0,1fr))}.study-how>div{grid-template-columns:1fr;gap:16px}.study-search-row{flex-wrap:wrap}.study-search-row>.study-format{flex-basis:100%;justify-content:space-between}.study-search-row>.study-format select{flex:1}.study-search{flex-basis:100%}}
@media(max-width:520px){.study-header{padding:13px 16px}.study-header-inner{gap:10px}.study-brand{font-size:15px}.study-brand>span{width:30px;height:30px}.study-header .lang-switch{min-width:55px;padding:8px 4px}.study-menu-toggle{font-size:12px;padding:9px}.study-main{padding:24px 18px 32px}.study-steps{gap:17px;font-size:12px;margin-bottom:27px}.study-steps li{gap:7px}.study-steps li>span{width:25px;height:25px}.study-intro{font-size:14px}.study-subjects{grid-template-columns:1fr;gap:12px}.subject-card{padding:19px;display:grid;grid-template-columns:44px 1fr;gap:8px 13px}.subject-icon{grid-row:1/3;width:40px;height:30px;margin:0}.subject-card h2{font-size:19px;margin:0;align-self:center}.subject-card p{grid-column:2;margin:0 0 8px;font-size:13px}.subject-card-bottom{grid-column:1/-1}.study-how{padding:20px}.study-refinements{grid-template-columns:1fr 1fr;gap:12px}.study-refinements .study-format:last-child{grid-column:1/-1}.study-section-heading{flex-wrap:wrap}.study-section-heading h2{font-size:23px}.study-cards{grid-template-columns:1fr}.study-card{padding:20px}.study-breadcrumb{gap:9px;font-size:12px}.study-grades{gap:10px}.grade-card{padding:16px 30px 16px 14px}.grade-card>b{right:12px;top:17px}.grade-card strong{font-size:15px}.study-resume{padding:18px}.study-footer{margin:0 18px;gap:16px}.study-footer>span{order:3;flex-basis:100%}.study-storage-note{font-size:11px}}
@media(max-width:350px){.study-main{padding-inline:14px}.study-grades{grid-template-columns:1fr}.study-steps{gap:12px;font-size:11px}}
@media(prefers-reduced-motion:reduce){.study-page *{scroll-behavior:auto!important;transition:none!important;animation:none!important}}