/* app-shell-header.css — google-maps-test */
#app-header {
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    background: color-mix(in srgb, var(--surface) 88%, transparent);
    border-bottom: 1px solid var(--line);
}

.shell-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1.25rem;
    gap: 1rem;
    max-width: 100%;
}

.shell-brand {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    text-decoration: none;
    color: var(--ink);
    flex-shrink: 0;
}

.shell-brand-mark {
    width: 1.8rem;
    height: 1.8rem;
    border-radius: 0.5rem;
    background: linear-gradient(135deg, var(--brand), var(--accent));
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.35);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    flex-shrink: 0;
}

.shell-brand-name {
    font-family: 'Sora', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    white-space: nowrap;
}

.shell-nav {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.shell-nav a {
    color: var(--muted);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.45rem 0.75rem;
    border-radius: 0.5rem;
    transition: color 0.15s, background 0.15s;
}

.shell-nav a:hover,
.shell-nav a.active {
    color: var(--ink);
    background: var(--surface);
}

.shell-right {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    flex-shrink: 0;
}

.shell-auth-email {
    font-size: 0.82rem;
    color: var(--muted);
    max-width: 160px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

@media (max-width: 640px) {
    .shell-nav {
        display: none;
    }
    .shell-brand-name {
        font-size: 0.9rem;
    }
    .shell-auth-email {
        display: none;
    }
}