/* Shared navigation for the admin and teacher panels. */
:root{--panel-sidebar-width:286px}
.panel-sidebar{box-sizing:border-box;position:fixed;inset:0 auto 0 0;width:var(--panel-sidebar-width);height:100vh;background:#fff;border-right:1px solid #e7e9ee;z-index:100;color:#273142}
.panel-sidebar .panel-inner{box-sizing:border-box;height:100%;display:flex;flex-direction:column;gap:0;padding:22px 18px 18px;overflow:auto}
.panel-sidebar .panel-top{display:flex;flex-direction:column;min-height:0;flex:1}
.panel-sidebar .panel-brand{display:flex;align-items:center;gap:12px;padding:3px 8px 18px;color:#172033;text-decoration:none;flex-shrink:0}
.panel-sidebar .panel-brand img{width:44px;height:44px;object-fit:contain;background:transparent;border-radius:0;flex-shrink:0}
.panel-sidebar .panel-brand strong{display:block;font-family:var(--font-display,'Raleway',sans-serif);font-size:20px;line-height:1.25;font-weight:800;letter-spacing:0}
.panel-sidebar .panel-brand small{display:block;margin-top:4px;color:#8a94a6;font-size:12px;font-weight:600;line-height:1.4;letter-spacing:0}
.panel-sidebar .panel-user{display:flex;align-items:center;gap:10px;margin:0 6px 20px;padding:12px;border:1px solid #eceef2;border-radius:13px;background:#fafbfc;flex-shrink:0}
.panel-sidebar .panel-avatar{width:34px;height:34px;display:grid;place-items:center;flex-shrink:0;border-radius:50%;background:#eef2ff;color:#002aaa;font-size:12px;font-weight:800}
.panel-sidebar .panel-user-copy{min-width:0}.panel-sidebar .panel-user-copy strong,.panel-sidebar .panel-user-copy small{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:12px;line-height:1.5}.panel-sidebar .panel-user-copy small{color:#8a94a6;font-size:10px;margin-top:2px}
.panel-sidebar .panel-nav{display:flex;flex-direction:column;gap:18px;min-height:0;overflow-y:auto;flex:1}
.panel-sidebar .panel-group{display:flex;flex-direction:column;gap:4px}
.panel-sidebar .panel-eyebrow{display:block;padding:0 10px 7px;color:#002aaa;font-size:10px;line-height:1.2;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
.panel-sidebar .panel-link{display:flex;align-items:center;justify-content:flex-start;gap:11px;min-height:40px;padding:9px 11px;border-radius:10px;color:#273142;text-decoration:none;font-size:12px;font-weight:650;line-height:1.4;box-sizing:border-box}
.panel-sidebar .panel-link>i{display:grid;place-items:center;width:24px;height:24px;flex:0 0 24px;font-size:16px;line-height:1;border-radius:7px}
.panel-sidebar .panel-link:hover{background:#f5f7fb;color:#002aaa}.panel-sidebar .panel-link.active,.panel-sidebar .panel-link[aria-current=page]{background:#eef2ff;color:#002aaa;font-weight:800}
.panel-sidebar .panel-count{margin-left:auto;padding:2px 7px;border-radius:20px;background:#fff0bc;color:#614c00;font-size:10px;font-weight:800}
.panel-sidebar .panel-bottom{display:grid;gap:8px;flex-shrink:0;margin-top:18px;padding-top:14px;border-top:1px solid #eceef2}
.panel-sidebar .panel-bottom form{margin:0}.panel-sidebar .panel-bottom a,.panel-sidebar .panel-bottom button{display:flex;align-items:center;gap:10px;width:100%;min-height:40px;box-sizing:border-box;padding:10px 12px;border:0;border-radius:10px;font:inherit;font-size:12px;font-weight:750;text-align:left;text-decoration:none;cursor:pointer}
.panel-sidebar .panel-website{background:#002aaa;color:#fff}.panel-sidebar .panel-logout{background:#fff4f2;color:#b42318}
.panel-sidebar a:focus-visible,.panel-sidebar button:focus-visible{outline:2px solid #002aaa;outline-offset:2px}
.portal-mobile-bar{display:none}.portal-page .portal-main,.portal-page .guru-shell{box-sizing:border-box;margin-left:var(--panel-sidebar-width);width:calc(100% - var(--panel-sidebar-width));max-width:none;padding:36px 40px 50px}
@media(min-width:1100px){.admin-with-sidebar .admin-main-column{margin-left:var(--panel-sidebar-width)}}
@media(max-width:1280px){:root{--panel-sidebar-width:260px}}
@media(max-width:1099px){
 .panel-sidebar{display:none;position:static;width:100%;height:auto;border-right:0;border-bottom:1px solid #e7e9ee}
 .admin-nav-open .panel-sidebar,.portal-nav-open .panel-sidebar{display:block}
 .panel-sidebar .panel-inner{height:auto;max-height:65vh;padding:16px 24px;overflow:auto}
 .panel-sidebar .panel-top{flex:none}.panel-sidebar .panel-nav{flex:none;overflow:visible}.panel-sidebar .panel-brand{display:none}
 .portal-mobile-bar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 24px;background:#fff;border-bottom:1px solid #e7e9ee}
 .portal-mobile-bar>a{font-weight:800;color:#002aaa}.portal-menu-toggle{display:flex;align-items:center;gap:8px;min-height:44px;padding:8px 14px;border:1px solid #e7e9ee;border-radius:10px;background:#fff;color:#002aaa;cursor:pointer}
 .portal-page .portal-main,.portal-page .guru-shell{margin-left:0;width:100%;padding:28px 24px 40px}
}
@media(max-width:640px){.portal-mobile-bar{padding:12px 16px}.portal-page .portal-main,.portal-page .guru-shell{padding:24px 16px 36px}}
@media print{.panel-sidebar,.portal-mobile-bar{display:none!important}.portal-page .portal-main,.portal-page .guru-shell{margin:0;width:100%}}