.app-shell{height:100dvh;display:flex;overflow:hidden}.app-sidebar{z-index:30;background:var(--surface-primary);border-right:1px solid var(--overlay-border);flex-direction:column;width:64px;height:100dvh;transition:width .2s ease-in-out;display:flex;position:fixed;top:0;left:0;overflow:hidden}.app-sidebar[data-expanded=true]{width:240px}.sidebar-header{align-items:center;gap:10px;min-height:56px;padding:16px 16px 12px;display:flex}.app-sidebar:not([data-expanded=true]) .sidebar-header{justify-content:center;padding-left:0;padding-right:0}.sidebar-logo-btn{cursor:pointer;width:28px;height:28px;color:var(--brand-500);background:0 0;border:none;border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;padding:0;transition:background .12s;display:inline-flex}.sidebar-logo-btn:hover{background:var(--overlay-hover)}.sidebar-wordmark{letter-spacing:-.03em;color:var(--text-primary);white-space:nowrap;font-size:15px;font-weight:600;display:none}.app-sidebar[data-expanded=true] .sidebar-wordmark{display:inline}.sidebar-collapse-btn{width:28px;height:28px;color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-radius:6px;justify-content:center;align-items:center;transition:background .12s,color .12s;display:inline-flex}.sidebar-collapse-btn:hover{background:var(--overlay-hover);color:var(--text-primary)}.sidebar-nav{flex-direction:column;flex:1;gap:2px;padding:4px 8px;display:flex}.app-sidebar:not([data-expanded=true]) .sidebar-nav{align-items:stretch;padding:4px 0}.sidebar-section-label{letter-spacing:.08em;text-transform:uppercase;color:var(--text-tertiary);white-space:nowrap;padding:12px 8px 4px;font-size:11px;font-weight:500;display:none}.app-sidebar[data-expanded=true] .sidebar-section-label{display:block}.sidebar-nav-item{color:var(--text-secondary);white-space:nowrap;box-sizing:border-box;border-radius:8px;align-items:center;gap:10px;width:100%;padding:8px 10px;font-size:13px;font-weight:500;text-decoration:none;transition:background .12s,color .12s;display:flex;position:relative}.app-sidebar:not([data-expanded=true]) .sidebar-nav-item{justify-content:center;padding-left:0;padding-right:0}.sidebar-nav-item:hover{background:var(--overlay-hover);color:var(--text-primary)}.sidebar-nav-item[data-active=true]{background:var(--overlay-active);color:var(--text-primary)}.sidebar-nav-item[data-active=true]:before{content:"";background:var(--brand-500);border-radius:0 3px 3px 0;width:3px;position:absolute;top:6px;bottom:6px;left:0}.app-sidebar[data-expanded=true] .sidebar-nav-item[data-active=true]:before{left:-8px}.sidebar-label{transition:opacity .15s ease-in-out;display:none}.app-sidebar[data-expanded=true] .sidebar-label{opacity:1;pointer-events:auto;display:inline}.sidebar-footer{border-top:1px solid var(--overlay-border);flex-direction:column;gap:4px;padding:8px;display:flex}.app-sidebar:not([data-expanded=true]) .sidebar-footer{align-items:center;padding-left:0;padding-right:0}.app-shell-main{flex:1;height:100dvh;margin-left:64px;overflow:hidden auto}.app-shell-main[data-sidebar-expanded=true]{margin-left:240px}.app-shell-main::-webkit-scrollbar{width:6px}.app-shell-main::-webkit-scrollbar-track{background:0 0}.app-shell-main::-webkit-scrollbar-thumb{background:var(--overlay-border);border-radius:3px}.app-shell-main::-webkit-scrollbar-thumb:hover{background:var(--text-tertiary)}.app-page-header{padding:24px 32px 0}.app-page-title{letter-spacing:-.02em;color:var(--text-primary);font-size:22px;font-weight:600}.app-page-description{color:var(--text-tertiary);margin-top:4px;font-size:13px}.settings-section{padding:24px 32px}.settings-section+.settings-section{border-top:1px solid var(--overlay-border)}.settings-label{color:var(--text-primary);margin-bottom:6px;font-size:13px;font-weight:500}.settings-hint{color:var(--text-tertiary);margin-top:4px;font-size:12px}.settings-avatar-upload{background:var(--overlay-subtle);border:2px dashed var(--overlay-border);cursor:pointer;border-radius:50%;justify-content:center;align-items:center;width:80px;height:80px;transition:border-color .15s,background .15s;display:inline-flex;position:relative;overflow:hidden}.settings-avatar-upload:hover{border-color:var(--brand-500);background:var(--overlay-hover)}.settings-avatar-upload img{object-fit:cover;width:100%;height:100%}.settings-avatar-overlay{opacity:0;background:#0006;justify-content:center;align-items:center;transition:opacity .15s;display:flex;position:absolute;inset:0}.settings-avatar-upload:hover .settings-avatar-overlay{opacity:1}.placeholder-page{text-align:center;flex-direction:column;justify-content:center;align-items:center;min-height:60vh;padding:32px;display:flex}.placeholder-icon{background:var(--overlay-subtle);width:64px;height:64px;color:var(--text-tertiary);border-radius:16px;justify-content:center;align-items:center;margin-bottom:16px;display:flex}.placeholder-title{color:var(--text-primary);margin-bottom:8px;font-size:16px;font-weight:600}.placeholder-description{color:var(--text-tertiary);max-width:320px;font-size:13px}