* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { height: 100%; overflow: hidden; font-family: var(--scp-font-family); background: var(--scp-bg-primary); color: var(--scp-text-secondary); }
.topbar { position: fixed; top: 0; left: 0; right: 0; height: 56px; background: linear-gradient(135deg, #1e293b 0%, #334155 100%); border-bottom: 1px solid var(--scp-border); display: flex; align-items: center; justify-content: space-between; padding: 0 1rem; z-index: 1000; }
.topbar__left { display: flex; align-items: center; gap: 0.75rem; }
.topbar__hamburger { background: none; border: none; cursor: pointer; width: 36px; height: 36px; display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 5px; padding: 6px; border-radius: var(--scp-radius-sm); transition: background 0.15s; }
.topbar__hamburger:hover { background: rgba(255, 255, 255, 0.1); }
.topbar__hamburger span { display: block; width: 20px; height: 2px; background: var(--scp-text-secondary); border-radius: 1px; transition: transform 0.2s, opacity 0.2s; }
.topbar__title { font-size: 1.25rem; font-weight: 600; color: var(--scp-text-primary); }
.topbar__right { display: flex; align-items: center; gap: 0.75rem; }
.topbar__auth { display: flex; align-items: center; gap: 0.75rem; }
.topbar__user-name { color: var(--scp-text-muted); font-size: 0.9rem; }
.topbar__btn { padding: 0.4rem 1rem; border-radius: var(--scp-radius-sm); font-size: 0.85rem; cursor: pointer; border: none; transition: background 0.2s, border-color 0.2s, color 0.2s; font-family: inherit; }
.topbar__btn--login { background: var(--scp-accent-blue); color: #0f172a; font-weight: 600; }
.topbar__btn--login:hover { background: #7dd3fc; }
.topbar__btn--logout { background: transparent; color: var(--scp-text-muted); border: 1px solid var(--scp-border); }
.topbar__btn--logout:hover { border-color: var(--scp-border-hover); color: var(--scp-text-primary); }
.shell-body { position: fixed; top: 56px; left: 0; right: 0; bottom: 0; display: flex; }
.sidebar { width: 260px; background: var(--scp-bg-secondary); border-right: 1px solid var(--scp-border); overflow-y: auto; overflow-x: hidden; transition: width 0.25s ease; flex-shrink: 0; display: flex; flex-direction: column; }
.sidebar--collapsed { width: 0; border-right: none; }
.sidebar__section { padding: 1rem 0.75rem 0.5rem; }
.sidebar__section--bottom { margin-top: auto; border-top: 1px solid var(--scp-border); padding-top: 0.75rem; }
.sidebar__heading { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--scp-text-faint); margin-bottom: 0.4rem; padding: 0 0.5rem; font-weight: 600; white-space: nowrap; }
.sidebar__list { list-style: none; }
.sidebar__link { display: flex; align-items: center; gap: 0.5rem; padding: 0.5rem 0.75rem; border-radius: var(--scp-radius-sm); color: var(--scp-text-muted); text-decoration: none; font-size: 0.9rem; transition: background 0.15s, color 0.15s; white-space: nowrap; cursor: pointer; }
.sidebar__link:hover { background: rgba(255, 255, 255, 0.05); color: var(--scp-text-primary); }
.sidebar__link--active { background: rgba(56, 189, 248, 0.1); color: var(--scp-accent-blue); }
.sidebar__link--disabled { opacity: 0.4; cursor: not-allowed; pointer-events: none; }
.sidebar__icon { width: 18px; height: 18px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.sidebar__icon svg { width: 18px; height: 18px; fill: currentColor; }
.sidebar__status { margin-left: auto; }
.content-area { flex: 1; overflow: hidden; position: relative; }
.content-page { height: 100%; overflow-y: auto; padding: 2rem; }
.content-iframe { width: 100%; height: 100%; border: none; }
.help-hero { text-align: center; padding: 2.5rem 0 2rem; }
.help-hero h2 { font-size: 2rem; font-weight: 700; color: #f8fafc; margin-bottom: 0.75rem; }
.help-hero p { font-size: 1.1rem; color: var(--scp-text-muted); max-width: 600px; margin: 0 auto; line-height: 1.6; }
.help-content { max-width: 960px; margin: 0 auto; }
.help-footer { text-align: center; padding: 1.5rem; color: var(--scp-text-faint); font-size: 0.8rem; border-top: 1px solid var(--scp-bg-secondary); margin-top: 2rem; }
@media (max-width: 768px) { .topbar__title { font-size: 1rem; } .sidebar { position: absolute; top: 0; left: 0; bottom: 0; z-index: 100; } .sidebar--collapsed { width: 0; } }