/* Shared navigation and account dropdown on the tool and information pages. */
.site-header{position:sticky;top:0;z-index:60;width:100%;max-width:none;height:auto;min-height:80px;margin:0;display:flex;align-items:center;gap:28px;padding:16px 36px;background:var(--bg);border-bottom:1px solid var(--line)}
.site-header .brand{flex-shrink:0;line-height:0;text-decoration:none}
.site-header .brand-logo{width:220px;height:auto;max-width:100%}
.site-header .site-nav{display:flex;align-items:center;justify-content:flex-end;gap:24px;margin-left:auto;font-size:14px;min-width:0}
.site-header .site-nav>a{color:var(--text);text-decoration:none;white-space:nowrap;padding:9px 0}
.site-header .site-nav>a:hover,.site-header .site-nav>a[aria-current=page]{color:var(--accent)}
.site-header .account-menu{position:relative;flex:0 0 auto;max-width:none;min-width:0;margin:0;padding:0;border:0;font-size:14px;color:var(--text)}
.site-header .account-menu>summary{display:flex;align-items:center;min-height:44px;white-space:nowrap;padding:10px 14px;gap:10px;color:var(--text);font-size:14px;font-weight:500;border:1px solid var(--line);border-radius:9px;background:var(--panel);list-style:none;transition:border-color .15s,background .15s}
.site-header .account-menu>summary::after{content:none}
.site-header .account-menu>summary:hover{border-color:#64606a;background:#1c212a}
.site-header .account-menu[open]>summary{border-color:#edb27780;background:#1c212a}
.site-header .account-icon{flex:none;width:18px;height:18px;color:var(--muted)}
.site-header .account-chevron{margin-left:8px;color:var(--accent);transition:transform .15s}
.site-header .account-menu[open] .account-chevron{transform:rotate(180deg)}
.site-header .account-dropdown{position:absolute;right:0;top:calc(100% + 12px);z-index:30;width:360px;max-width:calc(100vw - 32px);max-height:calc(100dvh - 105px);overflow:auto;overscroll-behavior:contain;padding:20px 12px 10px;background:var(--panel);border:1px solid #353c48;border-radius:16px;box-shadow:0 20px 60px #0008,0 2px 8px #0004;font-size:14px;line-height:1.5;text-align:left;scrollbar-width:thin;scrollbar-color:var(--track) transparent}
.site-header .account-dropdown p{margin:0;line-height:1.5}
.site-header .account-identity{display:flex;align-items:flex-start;gap:12px;padding:0 8px 18px}
.site-header .account-avatar{display:flex;align-items:center;justify-content:center;flex:none;width:40px;height:40px;border:1px solid #edb27733;border-radius:12px;background:#edb2770d;color:var(--accent);font-size:14px;font-weight:650;letter-spacing:.5px}
.site-header .account-avatar .account-icon{width:21px;height:21px;color:var(--accent)}
.site-header .account-identity-copy{min-width:0;flex:1}
.site-header .account-name-row{display:flex;align-items:center;gap:6px 8px;flex-wrap:wrap}
.site-header #accountName{font-size:14px;font-weight:600;overflow-wrap:anywhere}
.site-header .plan-badge{font-size:10px;line-height:1.5;font-weight:600;padding:2px 7px;border-radius:20px;color:#f0c190;border:1px solid #edb27733;background:#edb2770a}
.site-header #accountEmail{margin-top:5px;color:var(--muted);font-size:12px;overflow-wrap:anywhere}
.site-header .account-status:not(:empty){margin:0 8px 14px;padding:10px 12px;border:1px solid var(--line);border-radius:8px;font-size:12px;color:var(--accent)}
.site-header .account-status:empty{display:none}
.site-header .account-usage{margin:0 8px 12px;padding:14px;background:#0d1117;border:1px solid var(--line);border-radius:10px}
.site-header .account-usage-heading{display:flex;justify-content:space-between;gap:10px;color:#b9c0cc;font-size:11px;letter-spacing:.15px}
.site-header #allowancePeriod{color:var(--muted)}
.site-header .account-usage-count{padding:5px 0 4px;color:var(--muted);font-size:13px;font-variant-numeric:tabular-nums}
.site-header .account-usage-count strong{font-size:26px;font-weight:600;letter-spacing:-.7px;color:var(--text)}
.site-header #accountUsageMeter{display:block;width:100%;height:5px;margin:7px 0 10px;border:0;border-radius:4px;background:var(--track)}
.site-header #accountUsageMeter::-webkit-meter-bar{height:5px;border:0;border-radius:4px;background:var(--track)}
.site-header #accountUsageMeter::-webkit-meter-optimum-value{border-radius:4px;background:var(--accent)}
.site-header #accountUsageMeter::-moz-meter-bar{border-radius:4px;background:var(--accent)}
.site-header .account-reset{color:var(--muted);font-size:11px}
.site-header .account-reset:empty{display:none}
.site-header .account-signup-benefits{padding:2px 8px 12px}
.site-header .account-signup-benefits strong{font-size:13px;font-weight:550}
.site-header .account-signup-benefits p{margin-top:5px;color:var(--muted);font-size:12px}
.site-header .account-links{display:grid;gap:2px}
.site-header .account-link{display:flex;align-items:center;gap:12px;min-height:44px;padding:10px;border-radius:8px;color:var(--text);text-decoration:none;font-size:13px;font-weight:450;transition:background .15s}
.site-header .account-link span{flex:1}
.site-header .account-link>.account-icon:last-child{width:14px;height:14px;color:#747e8e}
.site-header .account-link:hover{background:#222933}
.site-header .account-link:hover>.account-icon:first-child{color:var(--accent)}
.site-header .account-link.account-register{margin:4px 8px 6px;padding:10px 12px;background:var(--accent);color:#161a22;font-weight:600}
.site-header .account-link.account-register>.account-icon{color:inherit}
.site-header .account-link.account-register:hover{background:#f2c394}
.site-header .account-session-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:0 10px}
.site-header .account-session-actions button{min-height:44px;padding:8px;color:var(--muted);border:0;font-size:12px}
.site-header .account-session-actions button:hover{color:var(--text);background:#222933}
.site-header .account-recent{margin:12px 8px 0;padding:14px 0 0;border-top:1px solid var(--line)}
.site-header .account-recent h3{margin:0 0 8px;font-size:11px;font-weight:500;color:var(--muted);letter-spacing:.2px}
.site-header #generationHistory{list-style:none;padding:0;margin:0;font-size:12px;line-height:1.5}
.site-header #generationHistory li{display:flex;justify-content:space-between;align-items:baseline;gap:12px;margin:0;padding:5px 0}
.site-header #generationHistory time{font-size:11px;color:var(--muted);text-align:right}
.site-header .account-dropdown-footer{margin:12px 8px 0;padding-top:14px;border-top:1px solid var(--line)}
.site-header .account-storage-note{font-size:11px;color:var(--muted)}
.site-header .account-signout{display:flex;align-items:center;gap:10px;min-height:44px;width:100%;margin-top:9px;padding:10px 0;border:0;border-radius:6px;text-align:left;font-size:12px;color:#bec5d0}
.site-header .account-signout:hover{background:#222933;color:var(--text)}
.site-header .account-signout .account-icon{width:16px;height:16px}
.site-header .account-dropdown :is(a,button):focus-visible{outline-offset:1px}
.premium-page section[id],.premium-page #premiumHeading{scroll-margin-top:100px}
@media(max-width:980px){.site-header{padding:14px 24px;gap:18px}.site-header .brand-logo{width:185px}.site-header .site-nav{gap:18px}}
@media(max-width:780px){.site-header{padding:14px 20px;flex-wrap:wrap;gap:10px}.site-header .site-nav{width:100%;margin:0;justify-content:space-between;gap:16px}.site-header .account-dropdown{max-height:calc(100dvh - 160px)}.premium-page section[id],.premium-page #premiumHeading{scroll-margin-top:145px}}
@media(max-width:540px){.site-header{padding:12px 16px;gap:10px}.site-header .brand-logo{width:172px}.site-header .site-nav{display:grid;grid-template-columns:1fr 1fr;gap:2px 16px;font-size:13px}.site-header .site-nav>a{padding:9px 0;min-height:38px}.site-header .account-menu{grid-column:2;width:100%;margin:0}.site-header .account-menu>summary{font-size:13px;padding:8px 10px;gap:8px}.site-header .account-chevron{margin-left:auto}.site-header .account-dropdown{max-height:calc(100dvh - 190px);top:calc(100% + 10px)}.premium-page section[id],.premium-page #premiumHeading{scroll-margin-top:175px}}
@media(max-width:360px){.site-header .account-menu>summary>.account-icon{display:none}}
@media(prefers-reduced-motion:reduce){.site-header .account-menu>summary,.site-header .account-chevron,.site-header .account-link{transition:none}}