.site-header{position:sticky;top:0;z-index:25;display:flex;align-items:center;justify-content:space-between;gap:25px;padding:17px max(24px,calc((100vw - 1240px)/2));background:#fffef9;border-bottom:1px solid #dfe6d4;box-shadow:0 3px 12px #36582d06}.site-brand{flex-shrink:0}.site-primary{display:flex;align-items:center;gap:7px}.site-primary>a,.site-dropdown>summary{display:flex;align-items:center;justify-content:center;gap:6px;min-height:46px;padding:9px 12px;border-radius:9px;color:#526c46;font-size:15px;font-weight:750;text-decoration:none;white-space:nowrap;line-height:1.5;cursor:pointer}.site-primary>a:hover,.site-dropdown>summary:hover{background:#edf3e3}.site-primary [aria-current="page"],.site-dropdown>summary.is-current{background:#e7efdb;color:#285d3d}.site-primary .site-teacher-link{background:#2b694a;color:white;padding:10px 16px;margin-left:5px}.site-primary .site-teacher-link:hover{background:#235a3e}.site-dropdown{position:relative}.site-dropdown>summary{list-style:none}.site-dropdown>summary::-webkit-details-marker{display:none}.site-dropdown[open]>summary{background:#edf3e3}.site-dropdown-links{position:absolute;right:0;top:calc(100% + 9px);width:250px;max-height:calc(100dvh - 110px);overflow:auto;padding:9px;border:1px solid #dce5ce;border-radius:13px;background:#fffef9;box-shadow:0 12px 32px #34562c20}.site-dropdown-links>a,.site-logout{display:flex;align-items:center;width:100%;min-height:46px;padding:10px 12px;font-size:16px;text-align:left;text-decoration:none;font-weight:650;border-radius:8px;white-space:normal;line-height:1.6;color:#4e6a42}.site-dropdown-links>a:hover,.site-logout:hover{background:#eff4e6}.site-dropdown-links form{margin:6px 0 0;padding-top:6px;border-top:1px solid #e4e9da}.site-logout{font-family:inherit;border:0;background:transparent;color:#8d603e;cursor:pointer}.site-menu-toggle{display:none;border:1px solid #cbd9ba;border-radius:10px;background:#edf3e3;color:#37653e;min-height:46px;padding:9px 14px;font-size:16px;font-weight:750;gap:8px;align-items:center}.site-menu-toggle[hidden]{display:none!important}.site-menu-toggle[aria-expanded="true"]{background:#dfeacf}.site-menu-toggle>span{font-size:20px}.site-breadcrumb{max-width:1240px;margin:0 auto;padding:19px 25px 0;font-size:14px;color:#6e815e}.site-breadcrumb ol{display:flex;gap:8px 10px;align-items:center;list-style:none;flex-wrap:wrap;padding:0;margin:0}.site-breadcrumb li{display:flex;align-items:center;gap:10px;min-width:0;max-width:100%}.site-breadcrumb li:not(:first-child):before{content:'›';color:#9dad8a}.site-breadcrumb a{min-height:30px;display:inline-flex;align-items:center;text-decoration:none}.site-breadcrumb a:hover{text-decoration:underline}.site-breadcrumb [aria-current]{overflow-wrap:anywhere;color:#41653b;font-weight:650}.teacher-shortcuts{max-width:1190px;margin:18px auto 0;padding:10px;display:flex;gap:9px;flex-wrap:wrap;border:1px solid #dce5cd;background:#f0f4e8;border-radius:12px}.teacher-shortcuts a{padding:8px 13px;min-height:44px;display:inline-flex;align-items:center;text-decoration:none;font-size:15px;font-weight:700;border-radius:8px}.teacher-shortcuts a:hover,.teacher-shortcuts a[aria-current]{background:#fffef8;box-shadow:0 1px 4px #24482a0c}.site-footer nav{display:flex;justify-content:center;gap:12px 25px;flex-wrap:wrap}.site-footer nav a{display:inline-flex;align-items:center;min-height:44px;font-size:15px;font-weight:650;text-decoration:none}.site-footer p{font-size:13px;text-align:center;margin:12px 0 0}.landing-page .site-header{padding-left:max(28px,calc((100vw - 1200px)/2));padding-right:max(28px,calc((100vw - 1200px)/2));font-family:Nunito,'Segoe UI',Arial,sans-serif}.landing-page .site-header .site-brand strong{font-size:23px}.landing-page .site-primary>a,.landing-page .site-dropdown>summary{font-size:15px;font-weight:850}.landing-page .site-primary .site-teacher-link{color:#fff}.site-header~main section[id],.site-header~main .practice-task{scroll-margin-top:125px}
@media(max-width:1100px){.site-header{padding:14px 24px;gap:14px}.site-primary{gap:2px}.site-primary>a,.site-dropdown>summary,.landing-page .site-primary>a,.landing-page .site-dropdown>summary{font-size:14px;padding:9px}.site-header .brand{font-size:13px}.site-header .brand strong,.landing-page .site-header .site-brand strong{font-size:22px}.site-header .brand>span:first-child{font-size:32px}.site-primary .site-teacher-link{padding:10px 12px}.teacher-shortcuts{margin-left:25px;margin-right:25px}}
@media(max-width:900px){.site-header,.landing-page .site-header{flex-wrap:wrap;padding:13px 20px;gap:12px}.site-menu-toggle{display:inline-flex;margin-left:auto}.site-primary{flex-basis:100%;width:100%;display:grid;grid-template-columns:1fr 1fr;align-items:start;gap:7px;padding-top:11px;border-top:1px solid #e3e9d7;max-height:calc(100dvh - 110px);overflow:auto;overscroll-behavior:contain}.site-header.nav-ready .site-primary:not(.is-open){display:none}.site-primary>a,.site-dropdown>summary,.landing-page .site-primary>a,.landing-page .site-dropdown>summary{justify-content:flex-start;font-size:17px;padding:11px 14px;min-height:49px;white-space:normal}.site-dropdown{width:100%}.site-dropdown-links{position:static;margin-top:6px;width:100%;max-height:none;box-shadow:none;background:#f7f9f0;padding:5px}.site-dropdown-links>a{font-size:16px;min-height:47px}.site-primary .site-teacher-link{margin-left:0;justify-content:center}.site-breadcrumb{padding:15px 20px 0;font-size:14px}.site-breadcrumb a{min-height:35px}.teacher-shortcuts{margin:15px 20px 0}.teacher-shortcuts a{font-size:14px}.site-header~main section[id],.site-header~main .practice-task{scroll-margin-top:105px}}
@media(max-width:480px){.site-header,.landing-page .site-header{padding:12px 17px}.site-header .brand{font-size:12px}.site-header .brand strong,.landing-page .site-header .site-brand strong{font-size:21px}.site-header .brand>span:first-child{font-size:30px}.site-menu-toggle{font-size:16px;padding:8px 12px;min-height:46px}.site-primary{grid-template-columns:1fr;padding-top:10px;gap:5px}.site-primary>a,.site-dropdown>summary,.landing-page .site-primary>a,.landing-page .site-dropdown>summary{font-size:18px;padding:10px 13px}.site-primary .site-teacher-link{justify-content:flex-start}.site-dropdown-links{padding:5px 9px}.site-dropdown-links>a{font-size:17px}.site-breadcrumb{font-size:13px;padding:12px 17px 0}.site-breadcrumb ol{gap:5px 8px}.teacher-shortcuts{margin:12px 16px 0;display:grid;grid-template-columns:1fr 1fr;gap:5px;padding:7px}.teacher-shortcuts a{font-size:14px;padding:8px 9px;line-height:1.5}.site-footer nav{gap:8px 18px}.site-footer nav a{font-size:14px}}
@media print{.site-header,.site-breadcrumb,.teacher-shortcuts,.site-footer{display:none!important}}