.app-header{z-index:100;-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--rule);background:#faf8f4eb;width:100%;position:sticky;top:0}.app-header-inner{justify-content:space-between;align-items:center;gap:24px;max-width:1320px;margin:0 auto;padding:16px 28px;display:flex}.app-header-brand{color:var(--ink);align-items:center;gap:10px;min-width:0;text-decoration:none;display:flex}.app-header-brand svg{flex-shrink:0;width:36px;height:36px}.app-header-brand-text{flex-direction:column;gap:1px;min-width:0;display:flex}.app-header-brand-row{align-items:center;gap:10px;min-width:0;display:flex}.app-header-brand .wm{font-family:var(--display);letter-spacing:-.02em;text-transform:none;white-space:nowrap;font-size:20px;font-weight:700}.app-header-brand .wm .myexam{color:var(--coral)}.app-header-subtitle{font-family:var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--inkf);white-space:nowrap;text-overflow:ellipsis;font-size:10.5px;font-weight:500;overflow:hidden}.app-header-crumb{font-family:var(--mono);letter-spacing:.18em;text-transform:uppercase;color:var(--inkf);border-left:1.5px solid var(--rule);white-space:nowrap;margin-left:6px;padding-left:14px;font-size:11px;font-weight:500}.app-header-actions{flex-shrink:0;align-items:center;gap:12px;display:flex}.app-header-hint{color:var(--inkf);letter-spacing:.02em;font-size:14px}.app-header-btn,.nav-auth-link,.ob-ghost{font-family:var(--body);color:var(--inks);letter-spacing:.02em;border:1.5px solid var(--rule);cursor:pointer;transition:color .15s var(--ease-out),border-color .15s var(--ease-out),background .15s var(--ease-out);background:#fff;border-radius:100px;align-items:center;gap:6px;padding:8px 14px;font-size:14px;font-weight:700;text-decoration:none;display:inline-flex}.app-header-btn:hover,.nav-auth-link:hover,.ob-ghost:hover{color:var(--ink);border-color:var(--ink)}.ob-ghost{background:0 0;border-color:#0000;border-radius:9px}.ob-ghost:hover{border-color:var(--rule);background:#fff}.ob-ghost.is-hidden{display:none}.app-header-icon-btn{border:1.5px solid var(--rule);width:42px;height:42px;color:var(--inks);cursor:pointer;transition:border-color .16s var(--ease-out),color .16s var(--ease-out);background:#fff;border-radius:12px;flex:none;justify-content:center;align-items:center;padding:0;display:flex}.app-header-icon-btn svg{width:18px;height:18px;display:block}.app-header-icon-btn:hover{border-color:var(--inkf);color:var(--ink)}.app-header-icon-btn.on{border-color:var(--coral);color:var(--coral);background:var(--corals)}.nav-links{align-items:center;gap:28px;display:flex}.nav-links a{color:var(--inks);letter-spacing:.02em;padding:8px 4px;font-size:15px;font-weight:700;text-decoration:none;transition:color .15s}.nav-links a:hover{color:var(--ink)}.nav-links a.nav-here{color:var(--ink);position:relative}.nav-links a.nav-here:after{content:"";background:var(--coral);border-radius:2px;height:2px;position:absolute;bottom:2px;left:4px;right:4px}.nav-links--auth{gap:12px}.nav-cta{letter-spacing:-.005em;text-transform:none;box-shadow:0 4px 0 var(--corald);transition:transform .12s var(--ease-out),box-shadow .12s var(--ease-out);border-radius:10px;align-items:center;gap:8px;min-height:42px;padding:11px 18px;font-size:14px;font-weight:700;display:inline-flex;background:var(--coral)!important;color:#fff!important}.nav-cta:hover{box-shadow:0 2px 0 var(--corald);transform:translateY(2px)}.ob-top-actions{align-items:center;gap:8px;display:flex}.app-header--session-minimal .app-header-inner{justify-content:flex-end;max-width:none;padding:10px 16px}.app-header--session-minimal{z-index:110}@media (max-width:820px){.app-header-inner{padding:12px 16px}.app-header-crumb,.nav-links a:not(.nav-cta){display:none}}@media (max-width:520px){.app-header-hint{display:none}}