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:root{--nav-h:56px;--primary:#0f1f3d;--primary-active:#0b182f;--primary-disabled:#c7ceda;--secondary:#1e4d40;--secondary-soft:#eaf1ee;--error:#c13515;--error-hover:#b32505;--ink:#222;--body:#3f3f3f;--muted:#6a6a6a;--muted-soft:#929292;--hairline:#ddd;--hairline-soft:#ebebeb;--border-strong:#c1c1c1;--canvas:#fff;--surface-soft:#f7f7f7;--surface-strong:#f2f2f2;--on-primary:#fff;--scrim:#00000080;--brand-logo-ink:#0c2545;--r-xs:4px;--r-sm:8px;--r-md:14px;--r-lg:20px;--r-xl:32px;--r-full:9999px;--sp-xxs:2px;--sp-xs:4px;--sp-sm:8px;--sp-md:12px;--sp-base:16px;--sp-lg:24px;--sp-xl:32px;--sp-xxl:48px;--sp-section:64px;--shadow-tier:#00000005 0 0 0 1px, #0000000a 0 2px 6px 0, #0000001a 0 4px 8px 0;--font-sans:var(--font-inter),"Pretendard",-apple-system,BlinkMacSystemFont,system-ui,"Segoe UI",Roboto,"Helvetica Neue",sans-serif;--maxw:1120px;--z-dropdown:30;--z-sticky:40;--z-nav:50;--z-modal:60;--plate-grad:linear-gradient(165deg,#2b3b58 0%,#182842 55%,#0f1f3d 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0;overflow:hidden}.mobile-sidebar-dialog::backdrop{background:var(--scrim)}.mobile-sidebar-dialog[open]{animation:.2s cubic-bezier(.16,1,.3,1) sidebar-in}@keyframes sidebar-in{0%{opacity:.6;transform:translate(-18px)}to{opacity:1;transform:none}}@media (min-width:1024px){.desktop-sidebar{flex:0 0 280px;width:280px;min-width:0;display:block}.mobile-app-bar{display:none}}@media (prefers-reduced-motion:reduce){.mobile-sidebar-dialog[open]{animation:none}}*{box-sizing:border-box}html,body{margin:0;padding:0}html.product-shell-scroll-locked,html.product-shell-scroll-locked 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var(--nav-h));display:flex}.app-main{flex:1;min-width:0;overflow-y:auto}.brand{white-space:nowrap;align-items:center;line-height:0;display:flex}.brand-lockup{aspect-ratio:1649/366;background-color:var(--brand-logo-ink);height:22px;display:inline-block;-webkit-mask:url(/brand/econ-ai-logo.svg) 50%/contain no-repeat;mask:url(/brand/econ-ai-logo.svg) 50%/contain no-repeat}.nav-tabs{align-items:center;gap:var(--sp-lg);white-space:nowrap;font-size:14.5px;font-weight:600;display:flex}@media (min-width:1024px){.nav-tabs{display:none}}.nav-tabs a{color:var(--muted);padding:8px 2px;transition:color .18s;position:relative}.nav-tabs a:hover,.nav-tabs a.active{color:var(--ink)}.nav-tabs a.active:after{content:"";border-radius:var(--r-full);background:var(--ink);height:2px;position:absolute;bottom:0;left:0;right:0}.nav-with-persona .nav-tabs{display:none}.nav-persona{align-items:center;min-width:0;display:flex}.nav-persona:before{content:"";background:var(--hairline-soft);width:1px;height:18px;margin-right:var(--sp-base);flex:none}.nav-persona-link{border-radius:var(--r-full);align-items:center;gap:8px;min-width:0;padding:4px 10px 4px 5px;transition:background .18s;display:flex}.nav-persona-link:hover{background:var(--surface-soft)}.nav-persona .avatar{width:28px;height:28px}.nav-persona .chat-persona-name{color:var(--ink);font-size:14.5px;font-weight:600}@media (min-width:1024px){.nav .sessions-btn{display:none}}@media (max-width:760px){.nav-with-persona .brand,.nav-persona:before{display:none}}.nav-right{align-items:center;gap:var(--sp-sm);display:flex}.nav-login-button{background:var(--canvas)}.credit-chip{border:1px solid var(--hairline);border-radius:var(--r-full);height:30px;color:var(--ink);align-items:center;gap:5px;padding:0 12px;font-size:13px;font-weight:700;transition:background 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.icon-btn{width:32px;height:32px}.noti .icon-btn .ic{font-size:15px}.noti-popover{background:var(--canvas);border-radius:var(--r-md);width:264px;box-shadow:var(--shadow-tier);z-index:var(--z-dropdown);opacity:0;visibility:hidden;transform-origin:100% 0;padding:20px;transition:opacity .2s cubic-bezier(.16,1,.3,1),transform .2s cubic-bezier(.16,1,.3,1),visibility .2s;position:absolute;top:calc(100% + 10px);right:0;transform:translateY(-8px)scale(.985)}.noti.open .noti-popover{opacity:1;visibility:visible;transform:translateY(0)}.noti-popover p{color:var(--ink);margin:0;font-size:14px;font-weight:600}.noti-popover .noti-sub{color:var(--muted);margin-top:4px;font-size:12.5px;font-weight:400}.noti-popover a{color:var(--ink);align-items:center;gap:4px;margin-top:14px;font-size:13px;font-weight:600;display:inline-flex}.noti-popover a:hover{text-decoration:underline}.noti-popover a .ic{font-size:12px}.text-ellipsis{text-overflow:ellipsis;white-space:nowrap;min-width:0;max-width:100%;overflow:hidden}.text-break{overflow-wrap:anywhere;word-break:normal;min-width:0}.account{position:relative}.account-trigger{border-radius:var(--r-full);cursor:pointer;width:48px;height:48px;font-family:var(--font-sans);background:0 0;border:0;place-items:center;padding:5px;transition:transform .15s cubic-bezier(.16,1,.3,1);display:grid}.account-trigger .acct-name,.account-trigger .chev{display:none}.account-trigger:focus-visible{outline:2px solid var(--primary);outline-offset:2px}.account-trigger .avatar{width:38px;height:38px}.account-trigger:hover .user-avatar--initials{background:var(--hairline-soft)}.account-trigger:active .user-avatar{transform:scale(.96)}.account-trigger .acct-name{color:var(--ink);white-space:nowrap;font-size:14px;font-weight:600}.account-trigger .chev{color:var(--muted);font-size:15px;transition:transform .22s}.account.open .account-trigger .chev{transform:rotate(180deg)}.user-avatar{background:var(--canvas);color:var(--ink);border:0;place-items:center;transition:background .15s,transform .15s cubic-bezier(.16,1,.3,1);display:grid}.user-avatar-picture{object-fit:cover;object-position:center}.user-avatar--initials{background:var(--surface-strong)}.user-avatar-initials{letter-spacing:-.04em;color:var(--ink);font-size:16px;font-weight:700;line-height:1}.account-sidebar{width:100%}.account-sidebar .account-trigger{border-radius:var(--r-sm);text-align:left;grid-template-columns:auto minmax(0,1fr) auto;gap:10px;width:100%;height:52px;padding:7px 8px;display:grid}.account-sidebar .account-trigger:hover{background:var(--canvas)}.account-sidebar .account-trigger .avatar{width:36px;height:36px}.account-sidebar .account-trigger .acct-name{text-overflow:ellipsis;white-space:nowrap;min-width:0;font-size:14px;display:block;overflow:hidden}.account-sidebar .account-trigger .chev{font-size:15px;display:block}.account-sidebar .account-menu{width:320px;inset:auto auto calc(100% + 8px) 0}.account-menu{overscroll-behavior:contain;background:var(--canvas);border-radius:var(--r-md);width:360px;max-width:calc(100vw - 24px);max-height:calc(100dvh - 96px);box-shadow:var(--shadow-tier);z-index:var(--z-dropdown);opacity:0;visibility:hidden;transform-origin:100% 0;padding:8px;transition:opacity .2s cubic-bezier(.16,1,.3,1),transform .2s cubic-bezier(.16,1,.3,1),visibility .2s;position:absolute;top:calc(100% + 10px);right:0;overflow-y:auto;transform:translateY(-8px)scale(.985)}.account.open .account-menu{opacity:1;visibility:visible;transform:translateY(0)}.am-overview{border:1px solid var(--hairline);border-radius:var(--r-md);background:var(--canvas);color:var(--ink);padding:18px}.am-head{border-bottom:1px solid var(--hairline-soft);align-items:center;gap:13px;padding-bottom:18px;display:flex}.am-head 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span{color:var(--muted);font-size:12px;font-weight:500}.am-credit-detail{border:1px solid var(--hairline);border-radius:var(--r-sm);color:var(--body);flex:none;align-items:center;gap:2px;margin-bottom:4px;padding:7px 9px;font-size:12px;font-weight:600;transition:background .15s,border-color .15s,color .15s;display:flex}.am-credit-detail .ic{font-size:14px}.am-section{padding:14px 4px 2px}.am-section+.am-section{padding-top:10px}.am-section-label{color:var(--muted);margin:0;padding:0 12px 5px;font-size:12px;font-weight:600;line-height:1.4}.am-item{text-align:left;border-radius:var(--r-sm);width:100%;min-height:48px;color:var(--body);cursor:pointer;font-size:14px;font-weight:550;font-family:var(--font-sans);background:0 0;border:none;align-items:center;gap:11px;padding:10px 12px;text-decoration:none;transition:background .15s,color .15s,transform .15s cubic-bezier(.16,1,.3,1);display:flex}.am-item:hover{background:var(--surface-soft);color:var(--ink)}.am-item:active{transform:scale(.985)}.am-item .ic{color:var(--muted);font-size:18px}.am-item:hover .ic{color:var(--body)}.am-item-copy{flex-direction:column;flex:1;gap:1px;min-width:0;line-height:1.35;display:flex}.am-item-copy small{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;font-size:11px;font-weight:400;overflow:hidden}.am-item .am-item-chevron{color:var(--muted-soft);margin-left:auto;font-size:15px;transition:transform .15s cubic-bezier(.16,1,.3,1)}.am-item:hover .am-item-chevron{color:var(--body);transform:translate(2px)}.am-account-actions{border-top:1px solid var(--hairline-soft);grid-template-columns:1fr 1fr;gap:4px;margin:10px 4px 2px;padding-top:10px;display:grid}.am-account-actions .am-item{justify-content:center;min-width:0;padding-inline:8px}.am-account-actions .am-item-copy{flex:0 auto}.am-item.danger,.am-item.danger .ic{color:var(--error)}.am-item.danger:hover{color:var(--error-hover);background:#fdf0ed}.delete-account-dialog{border-radius:var(--r-lg);background:var(--canvas);width:min(480px,100vw - 32px);color:var(--ink);box-shadow:var(--shadow-tier);border:0;padding:0}.delete-account-dialog::backdrop{background:var(--scrim)}.delete-account-content{padding:32px}.delete-account-kicker{letter-spacing:.04em;color:var(--muted);font-size:13px;font-weight:700}.delete-account-content h2{letter-spacing:-.025em;margin:6px 0 8px;font-size:26px;line-height:1.3}.delete-account-intro{color:var(--muted);margin:0;font-size:14px;line-height:1.65}.delete-account-summary{border:1px solid var(--hairline-soft);border-radius:var(--r-md);background:var(--surface-soft);color:var(--body);margin:24px 0;padding:18px 20px 18px 38px;font-size:14px;line-height:1.65}.delete-account-summary li+li{margin-top:6px}.delete-account-label{color:var(--body);margin-bottom:8px;font-size:14px;display:block}.delete-account-label strong{color:var(--ink)}.delete-account-dialog input{border:1px solid var(--border-strong);border-radius:var(--r-sm);background:var(--canvas);width:100%;height:48px;color:var(--ink);font:inherit;outline:none;padding:0 14px}.delete-account-dialog input:focus{border-color:var(--primary);box-shadow:0 0 0 3px #dde3ee}.delete-account-dialog input:disabled{background:var(--surface-soft)}.delete-account-error{color:var(--error);margin:10px 0 0;font-size:13px}.delete-account-actions{justify-content:flex-end;gap:10px;margin-top:24px;display:flex}.delete-account-cancel,.delete-account-submit{border-radius:var(--r-sm);min-height:44px;font:600 14px/1 var(--font-sans);cursor:pointer;padding:0 18px}.delete-account-cancel{border:1px solid var(--hairline);background:var(--canvas);color:var(--body)}.delete-account-cancel:hover{background:var(--surface-soft)}.delete-account-submit{border:1px solid var(--error);background:var(--error);color:#fff}.delete-account-submit:hover:not(:disabled){background:var(--error-hover);border-color:var(--error-hover)}.delete-account-submit:disabled{cursor:not-allowed;background:#ead4cf;border-color:#ead4cf}@media (max-width:560px){.delete-account-content{padding:24px}.delete-account-actions{flex-direction:column-reverse}.delete-account-cancel,.delete-account-submit{width:100%}}.btn{border-radius:var(--r-sm);cursor:pointer;min-height:48px;font-size:16px;font-weight:500;font-family:var(--font-sans);white-space:nowrap;border:1px solid #0000;justify-content:center;align-items:center;gap:8px;padding:13px 24px;transition:background .18s,border-color .18s;display:inline-flex}.btn 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