.app-shell {
    display: flex;
    min-height: 100vh;
}

.app-sidebar {
    --bs-offcanvas-width: 296px;
    --bs-offcanvas-bg: var(--ac-sidebar);
    --bs-offcanvas-color: var(--ac-text-soft);
    --bs-offcanvas-border-width: 1px;
    --bs-offcanvas-border-color: var(--ac-line-accent);
    background:
        radial-gradient(circle at 10% 0%, rgba(200, 255, 0, 0.07), transparent 27%),
        linear-gradient(180deg, #0b0e13 0%, #090c11 100%);
    border-right: 1px solid var(--ac-line-accent);
    box-shadow: 14px 0 34px rgba(0, 0, 0, 0.28);
}

@media (min-width: 992px) {
    .app-sidebar {
        flex: 0 0 var(--ac-sidebar-w);
        width: var(--ac-sidebar-w);
        position: sticky;
        top: 0;
        height: 100vh;
        display: flex;
        flex-direction: column;
        overflow-y: auto;
    }
}

.app-sidebar .offcanvas-body {
    display: flex;
    flex-direction: column;
    padding: 1.25rem 1rem;
    gap: 1.25rem;
    overflow-y: auto;
}

.app-brand {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    padding: 0.75rem;
    border: 1px solid var(--ac-line-accent-soft);
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.03);
    color: #fff;
}

.app-brand:hover { text-decoration: none; color: #fff; }

.app-brand-mark {
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    border-radius: 15px;
    background: var(--ac-grad-lime);
    color: var(--ac-on-lime);
    font-size: 1.35rem;
    box-shadow: var(--ac-glow-lime);
}

.app-brand-text { line-height: 1.15; }
.app-brand-name { font-family: var(--ac-font-display); font-size: 1rem; font-weight: 900; letter-spacing: -0.02em; }
.app-brand-sub { font-size: 0.66rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ac-text-faint); }

.app-nav { display: flex; flex-direction: column; gap: 1.1rem; }
.app-nav-section { display: flex; flex-direction: column; gap: 0.25rem; }

.app-nav-label {
    padding: 0 0.85rem 0.35rem;
    font-size: 0.66rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--ac-text-faint);
}

.app-nav-link {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.68rem 0.85rem;
    border: 1px solid transparent;
    border-radius: 14px;
    color: #c7cfda;
    font-weight: 650;
    transition: color var(--ac-ease), background var(--ac-ease), border-color var(--ac-ease);
}

.app-nav-link .bi { font-size: 1.1rem; color: var(--ac-lime); transition: color var(--ac-ease); }

.app-nav-link:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.045);
    border-color: rgba(255, 255, 255, 0.075);
    text-decoration: none;
}

.app-nav-link.is-active {
    color: var(--ac-on-lime);
    background: var(--ac-lime);
    border-color: var(--ac-lime);
    font-weight: 800;
    box-shadow: 0 9px 22px rgba(0, 0, 0, 0.2);
}

.app-nav-link.is-active .bi { color: var(--ac-on-lime); }

.app-sidebar-user {
    margin-top: auto;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.8rem;
    border: 1px solid var(--ac-line);
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.035);
}

.app-avatar {
    flex: 0 0 auto;
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border-radius: 14px;
    background: var(--ac-grad-lime);
    color: var(--ac-on-lime);
    font-weight: 900;
    font-size: 0.95rem;
    letter-spacing: -0.02em;
}

.app-sidebar-user-text { min-width: 0; flex: 1 1 auto; line-height: 1.25; }
.app-sidebar-user-name { color: #fff; font-weight: 800; font-size: 0.9rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.app-sidebar-user-role { color: var(--ac-text-faint); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.app-main {
    flex: 1 1 auto;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.app-topbar {
    position: sticky;
    top: 0;
    z-index: 1020;
    display: flex;
    align-items: center;
    gap: 1rem;
    min-height: var(--ac-topbar-h);
    padding: 0.5rem 1.25rem;
    background: linear-gradient(90deg, rgba(13, 17, 14, 0.96), rgba(9, 12, 17, 0.96) 50%, rgba(10, 14, 19, 0.96));
    border-bottom: 1px solid var(--ac-line-accent);
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.28);
    backdrop-filter: blur(18px);
}

.app-topbar-title { margin: 0; font-size: 1.05rem; font-weight: 900; letter-spacing: -0.02em; color: #fff; }
.app-topbar-spacer { flex: 1 1 auto; }

.app-icon-btn {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border: 1px solid var(--ac-line);
    border-radius: 13px;
    background: #12171e;
    color: var(--ac-lime);
    font-size: 1.2rem;
    transition: background var(--ac-ease), color var(--ac-ease);
}

.app-icon-btn:hover { background: var(--ac-lime); color: var(--ac-on-lime); }

.app-user-chip {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    min-height: 46px;
    padding: 0.3rem 0.75rem 0.3rem 0.4rem;
    border: 1px solid var(--ac-line-accent-soft);
    border-radius: 15px;
    background: rgba(255, 255, 255, 0.035);
    color: #fff;
    font-weight: 700;
}

.app-user-chip:hover { text-decoration: none; color: #fff; border-color: var(--ac-line-accent); }
.app-user-chip .app-avatar { width: 34px; height: 34px; border-radius: 11px; font-size: 0.8rem; }

.app-content {
    flex: 1 1 auto;
    width: 100%;
    max-width: 1480px;
    margin: 0 auto;
    padding: 1.5rem 1.25rem 3rem;
}

@media (max-width: 575.98px) {
    .app-topbar { padding: 0.5rem 0.85rem; }
    .app-content { padding: 1rem 0.85rem 2.5rem; }
    .app-user-chip .d-chip-name { display: none; }
}