.app-shell{grid-template-columns:auto 1fr;width:100%;height:100vh;display:grid;overflow:hidden}.app-main{background:var(--bg-color);overscroll-behavior:contain;flex-direction:column;min-width:0;height:100vh;min-height:0;display:flex;overflow-y:auto}.app-main__inner{width:100%;max-width:1400px;margin-inline:auto;padding:36px 48px 56px}.app-topbar{justify-content:space-between;align-items:center;gap:16px;padding:24px 36px 0;display:flex}.app-topbar__left{align-items:center;gap:16px;display:flex}.app-topbar__eyebrow{letter-spacing:.24em;text-transform:uppercase;color:var(--text-secondary);font-size:12px}.app-topbar__right{align-items:center;gap:12px;display:flex}.app-topbar__status{color:var(--academic-ink);background:var(--surface-2);border:1px solid color-mix(in srgb,var(--primary-color)24%,var(--border-color));letter-spacing:.02em;box-shadow:var(--shadow-sm);border-radius:999px;padding:6px 12px;font-size:12px;font-weight:600}.app-topbar__menu{background:var(--surface-2);border:1px solid color-mix(in srgb,var(--primary-color)22%,var(--border-color));width:40px;height:40px;box-shadow:var(--shadow-sm);color:var(--text-main);border-radius:12px;font-size:18px}.app-topbar__menu-icon{display:block;transform:translateY(-1px)}@media (max-width:1024px){.app-shell{grid-template-columns:1fr;height:auto;overflow:visible}.app-main{height:auto;overflow:visible}body{display:block}.app-shell{grid-template-columns:1fr}.app-main__inner{padding:24px}.app-topbar{padding:20px 24px 0}}.main-content{flex-grow:1;max-width:1400px;margin-left:260px;padding:48px 64px}@media (max-width:1024px){.app-main__inner{padding-inline:var(--app-main-padding-x)}}@media (max-width:1200px){.main-content{padding:40px}}@media (max-width:768px){.main-content{margin-left:0;padding:24px}}
.sidebar{background-color:var(--sidebar-bg);width:260px;box-shadow:1px 0 0px 0 var(--border-color);z-index:20;flex-direction:column;height:100vh;padding:32px 24px;display:flex;position:fixed;overflow-y:auto}.logo-section{align-items:center;gap:12px;margin-bottom:48px;padding-left:8px;display:flex}.logo-icon{font-size:28px}.site-name{color:var(--text-main);letter-spacing:-.5px;font-size:22px;font-weight:800}.main-nav{flex-direction:column;flex-grow:1;gap:6px;display:flex}.nav-item{color:var(--text-secondary);border-radius:12px;align-items:center;gap:14px;padding:12px 16px;font-size:15px;font-weight:500;transition:background-color .2s,color .2s;display:flex}.nav-item:hover{color:var(--text-main);background-color:#f8fafc}.nav-item.active{background-color:var(--accent-soft);color:var(--primary-color);font-weight:600}.nav-icon{opacity:.8;font-size:18px}.sidebar-footer{border-top:1px solid var(--border-color);flex-direction:column;gap:4px;margin-top:24px;padding-top:24px;display:flex}.footer-item{color:#94a3b8;border-radius:12px;align-items:center;gap:14px;padding:10px 16px;font-size:14px;transition:background-color .2s,color .2s;display:flex}.footer-item:hover{color:var(--text-secondary);background-color:#f8fafc}.app-sidebar{--surface-1:var(--accent-soft);--border-color:#d5d9cb;--focus-ring:#b0c6b3;background:var(--sidebar-bg);border-right:1px solid var(--border-color);width:260px;height:100vh;min-height:0;color:var(--text-main);font-family:var(--font-body);z-index:30;overscroll-behavior:contain;flex-direction:column;gap:28px;padding:32px 20px 24px;display:flex;position:sticky;top:0;overflow-y:auto}.app-sidebar--collapsed{width:84px;padding:28px 12px}.app-sidebar__header{border-bottom:1px solid var(--border-color);align-items:center;gap:12px;padding:0 6px 26px;display:flex}.app-sidebar__mark{color:#96662c;border:1px solid #c3cbb8;border-radius:20px 20px 3px 3px;flex:0 0 40px;place-items:center;height:44px;display:grid}.app-sidebar__brand{flex-direction:column;gap:4px;display:flex}.app-sidebar__logo{letter-spacing:-1.2px;font-size:32px;font-weight:500;line-height:1;font-family:var(--font-display);color:var(--academic-ink)}.app-sidebar__tag{font-family:var(--font-mono);color:var(--text-secondary);letter-spacing:.08em;text-transform:uppercase;font-size:9px}.app-sidebar__collapse{width:34px;height:34px;color:var(--text-secondary);box-shadow:none;background:#fcfcfaeb;border:1px solid #94a3b847;border-radius:12px;transition:background-color .2s,border-color .2s,color .2s}.app-sidebar__collapse:hover{color:var(--text-main);box-shadow:none;transform:none}.app-sidebar__collapse:focus-visible{box-shadow:0 0 0 3px var(--focus-ring);border-color:color-mix(in srgb,var(--primary-color)42%,transparent);outline:none}.app-sidebar__collapse-icon{font-size:14px}.app-nav{flex-direction:column;flex:1;gap:6px;display:flex}.app-nav__item{min-height:46px;color:var(--text-secondary);text-align:left;background:0 0;border:1px solid #0000;border-radius:4px;grid-template-columns:24px 1fr;align-items:center;gap:12px;padding:11px 14px;font-size:13px;font-weight:500;transition:background-color .15s,border-color .15s,color .15s;display:grid;position:relative}.app-nav__item:hover{color:var(--text-main);box-shadow:none;background:#e6e9de;border-color:#0000;transform:none}.app-nav__item--active{color:var(--primary-color);background:var(--surface-1);box-shadow:none;border-color:#cfd7c5}.app-nav__item--active:before{content:"";background:var(--primary-color);width:2px;box-shadow:none;border-radius:0;position:absolute;top:10px;bottom:10px;left:0}.app-nav__item:focus-visible{border-color:color-mix(in srgb,var(--primary-color)34%,transparent);box-shadow:0 0 0 3px var(--focus-ring);outline:none}.app-nav__item--signin.app-nav__item--active{color:var(--sign-accent);background:var(--sign-accent-soft);border-color:#cfd7c5}.app-nav__item--signin.app-nav__item--active:before{background:var(--sign-accent)}.app-nav__item--disabled{opacity:.55;cursor:not-allowed}.app-nav__item--disabled:hover{color:var(--text-secondary);box-shadow:none;background:0 0;border-color:#0000;transform:none}.app-nav__item--collapsed{grid-template-columns:1fr;justify-items:center;padding:12px 10px}.app-nav__iconWrap{color:currentColor;background:0 0;border-radius:0;place-items:center;width:24px;height:24px;transition:background .18s,color .18s;display:grid}.app-nav__item:hover .app-nav__iconWrap{background:0 0}.app-nav__item--active .app-nav__iconWrap{color:var(--primary-color);background:0 0}.app-nav__item--signin.app-nav__item--active .app-nav__iconWrap{color:var(--sign-accent);background:0 0}.app-nav__icon{stroke-width:1.6px;width:19px;height:19px}.app-nav__label{white-space:nowrap}.app-nav__expandAffordance{flex:none;justify-self:end;align-items:center;display:inline-flex}.app-nav__chevronPill{border:1px solid var(--border-color);width:24px;height:24px;box-shadow:none;background:0 0;border-radius:3px;place-items:center;transition:transform .18s,border-color .18s,background .18s,box-shadow .18s;display:grid}.app-nav__chevronPill.is-open{transform:rotate(180deg)}.app-nav__chevron{color:currentColor;opacity:.85;font-size:14px}.app-nav__group{border-top:1px solid var(--border-color);flex-direction:column;gap:6px;margin-top:16px;padding-top:16px;display:flex}.app-nav__item--history{grid-template-columns:24px 1fr auto}.app-nav__item--history:hover .app-nav__chevronPill{border-color:color-mix(in srgb,var(--primary-color)28%,transparent);background:var(--surface-1);box-shadow:none}.app-nav__historyList{border-left:1px solid var(--border-color);flex-direction:column;gap:4px;margin-left:25px;padding-left:10px;display:flex}.app-nav__historyRow{width:100%;color:var(--text-secondary);background:0 0;border:none;border-radius:4px;align-items:center;transition:color .18s,background .18s;display:flex;position:relative}.app-nav__historyRow:hover{color:var(--text-main);background:#e6e9de}.app-nav__historyRow.is-active{color:var(--primary-color);background:var(--surface-1)}.app-nav__historyItem{min-width:0;color:inherit;text-align:left;flex:auto;align-items:center;padding:9px 8px;font-size:12px;font-weight:400;display:flex}.app-nav__historyItem:focus-visible{box-shadow:0 0 0 3px var(--focus-ring);outline:none}.app-nav__historyItemText{text-overflow:ellipsis;white-space:nowrap;flex:auto;min-width:0;display:block;overflow:hidden}.app-nav__historyMenuAnchor{flex:none;margin-right:6px;position:relative}.app-nav__historyMenuButton{color:currentColor;opacity:0;border-radius:10px;place-items:center;width:32px;height:32px;transition:opacity .16s,background .16s,color .16s;display:grid}.app-nav__historyRow:hover .app-nav__historyMenuButton,.app-nav__historyMenuButton:focus-visible,.app-nav__historyMenuButton[aria-expanded=true]{opacity:1}.app-nav__historyMenuButton:hover,.app-nav__historyMenuButton[aria-expanded=true]{color:var(--text-main);background:#0f172a0f}.app-nav__historyMenuButton:disabled{opacity:.55;cursor:not-allowed}.app-nav__historyMenu{z-index:80;background:#fff;border:1px solid #94a3b842;border-radius:8px;min-width:136px;padding:6px;position:fixed;box-shadow:0 10px 24px #1018281f}.app-nav__historyMenuItem{width:100%;min-height:36px;color:var(--text-main);text-align:left;border-radius:7px;align-items:center;gap:10px;padding:8px 10px;font-size:14px;font-weight:620;display:flex}.app-nav__historyMenuItem:hover:not(:disabled),.app-nav__historyMenuItem:focus-visible{background:#a12b3c14;outline:none}.app-nav__historyMenuItem--danger{color:#c62828}.app-nav__historyMenuItem:disabled{opacity:.65;cursor:not-allowed}.app-nav__historyMenuError{color:#c62828;padding:5px 10px 2px;font-size:11px}.app-nav__historyMeta{color:var(--text-secondary);padding:6px 12px;font-size:12px}.app-nav__historyMore{border:1px solid var(--border-color);width:100%;color:var(--text-secondary);background:0 0;border-radius:4px;justify-content:center;align-items:center;padding:7px 12px;font-size:12px;font-weight:650;transition:background .18s,border-color .18s,color .18s;display:inline-flex}.app-nav__historyMore:hover:not(:disabled){color:var(--text-main);background:#fcfcfaf2;border-color:#94a3b84d}.app-nav__historyMore:disabled{opacity:.7;cursor:not-allowed}.app-nav__tooltip{color:#fff;opacity:0;pointer-events:none;background:#0f172a;border-radius:999px;padding:6px 10px;font-size:11px;transition:opacity .2s,transform .2s;position:absolute;top:50%;left:calc(100% + 10px);transform:translateY(-50%)}.app-nav__item--collapsed:hover .app-nav__tooltip{opacity:1;transform:translate(4px,-50%)}.app-sidebar__footer{border-top:1px solid var(--border-color);flex-direction:column;gap:10px;padding-top:20px;display:flex}.app-sidebar__footerSection{flex-direction:column;gap:10px;display:flex}.app-sidebar__footerLabel{font-family:var(--font-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--text-secondary);padding-left:14px;font-size:9px}.app-sidebar--collapsed .app-sidebar__footerLabel{display:none}.app-sidebar__footerActions{flex-direction:column;gap:8px;display:flex}.app-nav__item--account{color:var(--primary-color);border-color:var(--border-color);background:#f7f6f0}.app-nav__item--account:hover{color:var(--text-main);background:var(--surface-1);border-color:#aab99d}.app-nav__item--collapsed.app-nav__item--account{padding:12px 10px}.app-nav__item--collapsed.app-nav__item--signin.app-nav__item--active{box-shadow:var(--shadow-sm)}.app-sidebar__drawer{z-index:40;display:none;position:fixed;inset:0}.app-sidebar__drawer.is-open{display:block}.app-sidebar__backdrop{background:#0f172a73;position:absolute;inset:0}.app-sidebar--mobile{height:100%;box-shadow:var(--shadow-lg);position:absolute;top:0;left:0}@media (max-width:1024px){.app-sidebar{border-right:0;border-bottom:1px solid var(--border-color);gap:16px;width:100%;height:auto;padding:16px 20px;position:relative;overflow:visible}.app-sidebar__header{border:0;padding:0;position:absolute;top:22px;left:20px}.app-sidebar__footer{border:0;order:-1;margin-left:auto;padding:0}.app-sidebar__footerSection{gap:4px}.app-sidebar__footerLabel{padding-left:10px}.app-nav{flex-flow:wrap;gap:4px}.app-nav__item{grid-template-columns:20px 1fr;gap:8px;min-height:44px;padding:10px;font-size:12px}.app-nav__iconWrap{width:20px;height:20px}.app-nav__icon{width:18px;height:18px}.app-nav__item--active:before{display:none}.app-nav__item--history{grid-template-columns:20px 1fr auto}.app-nav__chevronPill{width:20px;height:20px}.app-nav__group{flex:100%;margin-top:8px;padding-top:8px}}@media (hover:none){.app-nav__historyMenuButton{opacity:1}}@media (max-width:768px){.sidebar{width:0;padding:0;display:none;overflow:hidden}}