.app-header{background:var(--bg-surface,#131c2d);border-bottom:1px solid var(--border-subtle,rgba(116,147,197,.16));padding:0 20px;position:-webkit-sticky;position:sticky;top:0;z-index:100;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.app-header-row{display:flex;align-items:center;justify-content:space-between;gap:20px;height:56px;max-width:1400px;margin:0 auto}.app-header-left{display:flex;align-items:center;gap:18px;min-width:0;flex:1 1}.app-header-back{background:transparent;border:1px solid var(--border-subtle);color:var(--text-primary,#e5e7eb);width:32px;height:32px;border-radius:8px;font-size:16px;cursor:pointer;transition:all .15s;flex-shrink:0}.app-header-back:hover{background:var(--bg-glass-light,rgba(255,255,255,.04));border-color:var(--accent,#6366f1)}.app-header-logo{font-size:15px;font-weight:700;color:var(--accent,#6366f1);text-decoration:none;display:inline-flex;align-items:center;gap:8px;flex-shrink:0}.app-header-logo-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--accent,#6366f1);box-shadow:0 0 12px var(--accent,#6366f1)}.app-header-nav{display:flex;align-items:center;gap:2px}.app-header-nav a{padding:6px 14px;border-radius:8px;font-size:13px;font-weight:500;color:var(--text-secondary,#a7b6ca);text-decoration:none;transition:all .15s}.app-header-nav a:hover{background:var(--bg-glass-light,rgba(255,255,255,.04));color:var(--text-primary,#e5e7eb)}.app-header-nav a.active{background:var(--accent-soft,rgba(99,102,241,.14));color:var(--accent,#6366f1)}.app-header-right{display:flex;align-items:center;gap:8px;flex-shrink:0}.app-header-user{position:relative}.app-header-user-button{display:inline-flex;align-items:center;gap:8px;padding:4px 10px 4px 4px;border:1px solid var(--border-subtle,rgba(116,147,197,.16));background:transparent;color:var(--text-secondary,#a7b6ca);border-radius:20px;font-family:inherit;font-size:13px;cursor:pointer;transition:all .15s;max-width:200px}.app-header-user-button:hover{background:var(--bg-glass-light,rgba(255,255,255,.04));border-color:var(--accent,#6366f1);color:var(--text-primary,#e5e7eb)}.app-header-avatar{width:26px;height:26px;border-radius:50%;object-fit:cover;flex-shrink:0;display:inline-flex;align-items:center;justify-content:center}.app-header-avatar-placeholder{background:var(--accent,#6366f1);color:#fff;font-weight:600;font-size:12px}.app-header-user-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}.app-header-caret{font-size:10px;color:var(--text-muted,#94a3b8)}.app-header-menu{position:absolute;top:calc(100% + 8px);right:0;min-width:200px;background:var(--bg-surface,#131c2d);border:1px solid var(--border-subtle,rgba(116,147,197,.2));border-radius:10px;box-shadow:0 10px 40px rgba(0,0,0,.4);padding:4px;z-index:101}.app-header-menu a,.app-header-menu button{display:block;width:100%;text-align:left;padding:10px 12px;border-radius:6px;background:transparent;border:none;color:var(--text-primary,#e5e7eb);font-size:13px;cursor:pointer;text-decoration:none;font-family:inherit;transition:background .1s}.app-header-menu a:hover,.app-header-menu button:hover{background:var(--bg-glass-light,rgba(255,255,255,.06))}.app-header-menu-divider{height:1px;background:var(--border-subtle,rgba(116,147,197,.12));margin:4px 0}.app-header-subrow{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 0;max-width:1400px;margin:0 auto;border-top:1px solid var(--border-subtle,rgba(116,147,197,.08))}.app-header-title{font-size:20px;font-weight:600;color:var(--text-primary,#e5e7eb);margin:0 0 2px}.app-header-subtitle{font-size:12px;color:var(--text-muted,#94a3b8)}.app-header-actions{display:flex;align-items:center;gap:8px}.notifications-bell{position:relative}.notifications-bell-btn{width:36px;height:36px;border-radius:8px;border:1px solid var(--border-subtle,rgba(116,147,197,.16));background:transparent;color:var(--text-secondary,#a7b6ca);font-size:16px;cursor:pointer;position:relative;transition:all .15s}.notifications-bell-btn:hover{background:var(--bg-glass-light,rgba(255,255,255,.04));border-color:var(--accent,#6366f1)}.notifications-bell-badge{position:absolute;top:-4px;right:-4px;min-width:18px;height:18px;padding:0 5px;background:#ef4444;color:#fff;border-radius:9px;font-size:10px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;border:2px solid var(--bg-surface,#131c2d);line-height:1}.notifications-bell-badge:before{content:"";position:absolute;inset:-2px;border-radius:inherit;background:#ef4444;opacity:.55;z-index:-1;animation:notifications-bell-pulse 2s ease-out infinite}@keyframes notifications-bell-pulse{0%{transform:scale(1);opacity:.55}70%{transform:scale(1.9);opacity:0}to{transform:scale(1.9);opacity:0}}.notifications-bell-btn.has-new{animation:notifications-bell-wiggle .7s ease-in-out;transform-origin:50% 0}@keyframes notifications-bell-wiggle{0%,to{transform:rotate(0deg)}15%{transform:rotate(-14deg)}30%{transform:rotate(12deg)}45%{transform:rotate(-9deg)}60%{transform:rotate(6deg)}75%{transform:rotate(-3deg)}}@media (prefers-reduced-motion:reduce){.notifications-bell-badge:before{animation:none;opacity:0}.notifications-bell-btn.has-new{animation:none}}.notifications-dropdown{position:absolute;top:calc(100% + 8px);right:0;width:340px;max-height:480px;background:var(--bg-surface,#131c2d);border:1px solid var(--border-subtle,rgba(116,147,197,.2));border-radius:12px;box-shadow:0 10px 40px rgba(0,0,0,.4);overflow:hidden;display:flex;flex-direction:column;z-index:101}.notifications-header{padding:12px 14px;border-bottom:1px solid var(--border-subtle,rgba(116,147,197,.12));display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-primary,#e5e7eb)}.btn-link{background:transparent;border:none;color:var(--accent,#6366f1);font-size:12px;cursor:pointer;padding:2px 6px;font-family:inherit}.btn-link:hover{text-decoration:underline}.notifications-empty{padding:30px 20px;text-align:center;color:var(--text-muted,#94a3b8);font-size:13px}.notifications-list{list-style:none;margin:0;padding:0;overflow-y:auto;flex:1 1}.notifications-item{padding:12px 14px;border-bottom:1px solid var(--border-subtle,rgba(116,147,197,.08));transition:background .1s}.notifications-item:last-child{border-bottom:none}.notifications-item.clickable{cursor:pointer}.notifications-item.clickable:hover{background:var(--bg-glass-light,rgba(255,255,255,.04))}.notifications-item.unread{background:rgba(99,102,241,.06);border-left:3px solid var(--accent,#6366f1);padding-left:11px}.notifications-item-title{font-size:13px;font-weight:600;color:var(--text-primary,#e5e7eb);margin-bottom:2px}.notifications-item-body{font-size:12px;color:var(--text-secondary,#a7b6ca);line-height:1.4;margin-bottom:4px}.notifications-item-time{font-size:11px;color:var(--text-muted,#94a3b8)}@media (max-width:720px){.app-header-nav,.app-header-user-name{display:none}.app-header-user-button{padding:4px}.app-header-logo{font-size:13px}.app-header-subrow{flex-direction:column;align-items:flex-start;gap:8px}.notifications-dropdown{width:calc(100vw - 40px);right:-60px}}