/* © Элвис · Telegram: @ElvisOnlyDev · ofdev.net */
.app { display: grid; grid-template-columns: var(--sidebar-w) minmax(0, 1fr); min-height: 100vh; }

.sidebar {
    position: sticky; top: 0; align-self: start;
    height: 100vh;
    display: flex; flex-direction: column;
    background: var(--bg-surface);
    border-right: 1px solid var(--border);
    padding: var(--space-4) var(--space-3);
}

.brand {
    display: flex; align-items: center; gap: var(--space-2);
    font-size: 16px; font-weight: 700; letter-spacing: -0.02em;
    color: var(--text-primary);
    padding: var(--space-1) var(--space-2);
    margin-bottom: var(--space-6);
}
.brand .brand-mark { color: var(--accent); display: inline-flex; }
.brand .brand-mark svg { width: 20px; height: 20px; }

.sidebar nav { display: flex; flex-direction: column; gap: 2px; flex: 1; }

.nav-group { font-size: 10px; letter-spacing: .08em; text-transform: uppercase; color: var(--text-muted); padding: var(--space-4) var(--space-2) var(--space-1); }

.nav-link {
    display: flex; align-items: center; gap: 10px;
    color: var(--text-secondary);
    padding: 8px 10px;
    border-radius: var(--radius-md);
    font-weight: 500;
    border-left: 2px solid transparent;
    transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}
.nav-link svg { width: 16px; height: 16px; flex: none; opacity: .85; }
.nav-link:hover { background: var(--bg-hover); color: var(--text-primary); }
.nav-link.active {
    color: var(--text-primary);
    background: var(--accent-soft);
    border-left-color: var(--accent);
}
.nav-link.active svg { color: var(--accent); opacity: 1; }

.sidebar-foot { border-top: 1px solid var(--border); padding-top: var(--space-3); margin-top: var(--space-3); }
.who { display: flex; align-items: center; gap: 10px; padding: 6px 8px; margin-bottom: var(--space-1); }
.who .who-name { display: flex; flex-direction: column; min-width: 0; }
.who .who-name b { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.who .role { font-size: 10px; color: var(--text-muted); text-transform: uppercase; letter-spacing: .06em; }

.content { display: flex; flex-direction: column; min-width: 0; }

.topbar {
    position: sticky; top: 0; z-index: var(--z-sticky);
    display: flex; align-items: center; gap: var(--space-3);
    padding: var(--space-4) var(--space-6);
    border-bottom: 1px solid var(--border);
    background: color-mix(in srgb, var(--bg-base) 82%, transparent);
    backdrop-filter: blur(10px);
}
.topbar h1 { flex: 1; }
.topbar .crumb { color: var(--text-muted); font-size: 12px; }

.sidebar-toggle { display: none; }

.page { padding: var(--space-6); display: flex; flex-direction: column; gap: var(--space-4); }
.page.narrow { max-width: 720px; }

.section-head { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); margin-bottom: var(--space-2); }
.section-head h2, .section-head h3 { display: flex; align-items: center; gap: var(--space-2); }

.split { display: grid; grid-template-columns: 1fr; gap: var(--space-4); }
@media (min-width: 1100px) { .split.aside { grid-template-columns: minmax(0,1fr) 340px; align-items: start; } }

@media (max-width: 860px) {
    .app { grid-template-columns: 1fr; }
    .sidebar {
        position: fixed; z-index: var(--z-modal); left: 0; top: 0; width: min(84vw, 300px);
        transform: translateX(-102%); transition: transform var(--dur) var(--ease);
        box-shadow: var(--shadow-2);
    }
    .app.nav-open .sidebar { transform: translateX(0); }
    .app.nav-open::after { content: ""; position: fixed; inset: 0; z-index: calc(var(--z-modal) - 1); background: rgba(0,0,0,.5); }
    .sidebar-toggle { display: inline-flex; }
    .page { padding: var(--space-4); }
    .topbar { padding: var(--space-3) var(--space-4); }
}