:root {
    --sidebar-width: 258px;
    --sidebar-collapsed-width: 76px;
}

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

.app-shell .sidebar {
    width: var(--sidebar-width);
    padding: 16px 14px 12px;
    background:
        linear-gradient(150deg, rgba(47, 84, 150, 0.74) 0 92px, transparent 93px),
        linear-gradient(180deg, #1d4480 0%, #15376c 34%, #102957 70%, #0c1d40 100%) !important;
    color: #ecf2ff;
    border-right: 1px solid rgba(216, 229, 255, 0.14) !important;
    box-shadow:
        inset -1px 0 0 rgba(255, 255, 255, 0.04),
        10px 0 28px rgba(12, 29, 64, 0.18) !important;
    transition:
        width 150ms ease,
        padding 150ms ease,
        transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.app-shell .main-content {
    margin-left: var(--sidebar-width);
    transition: margin-left 150ms ease;
}

.sidebar-brand {
    padding: 0 2px 14px;
    border-bottom: 1px solid rgba(216, 229, 255, 0.12);
}

.brand-head {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.brand-full,
.brand-compact {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.brand-image-full {
    display: block;
    width: 188px;
    max-width: 100%;
    height: auto;
    object-fit: contain;
}

.brand-image-compact {
    display: none;
    width: auto;
    height: 26px;
    max-width: none;
    object-fit: contain;
    flex: 0 0 auto;
}

.sidebar-toggle {
    margin-left: auto;
    width: 28px;
    height: 28px;
    border: 0;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.12);
    color: #ffffff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 140ms ease, transform 140ms ease;
    flex: 0 0 auto;
}

.sidebar-toggle:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-1px);
}

.sidebar-toggle svg {
    width: 18px;
    height: 18px;
}

.orange-line {
    width: 62px;
    height: 3px;
    margin: 12px 0 14px;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--secondary), #ff9a3d);
}

.brand-copy {
    display: grid;
    gap: 6px;
}

.brand-kicker {
    color: #d5e3ff;
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.brand-subtitle {
    margin: 0;
    color: #aebfdf;
    font-size: 12px;
    line-height: 1.35;
}

.sidebar-section-label {
    margin: 14px 2px 10px;
    color: #9cb0d9;
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.sidebar-nav {
    padding: 14px 6px 96px !important;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.nav-item,
.nav-group-header {
    width: 100%;
    display: grid;
    grid-template-columns: 24px minmax(0, 1fr) auto;
    align-items: center;
    gap: 12px;
    margin: 0 !important;
    padding: 12px 12px !important;
    border-radius: 12px !important;
    color: rgba(236, 242, 255, 0.78) !important;
    background: transparent !important;
    position: relative;
    transition: background 140ms ease, transform 140ms ease, color 140ms ease;
}

.nav-item {
    text-decoration: none;
}

.nav-item .icon,
.nav-group-header .icon {
    width: 24px;
    height: 24px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: inherit;
}

.nav-item .icon svg,
.nav-group-header .icon svg {
    width: 18px;
    height: 18px;
}

.nav-item .label,
.nav-group-header .label {
    min-width: 0;
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.nav-group-header .arrow {
    width: 18px;
    height: 18px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: rgba(236, 242, 255, 0.66);
    transition: transform 140ms ease;
}

.nav-item::before,
.nav-group-header::before {
    content: "";
    position: absolute;
    left: 0;
    top: 6px;
    bottom: 6px;
    width: 4px;
    border-radius: 0 999px 999px 0;
    background: transparent;
}

.nav-item:hover,
.nav-group-header:hover,
.nav-sub-item:hover {
    color: #ffffff !important;
    background:
        linear-gradient(90deg, rgba(255, 122, 26, 0.05), transparent 38%),
        linear-gradient(135deg, rgba(74, 106, 163, 0.98), rgba(53, 85, 141, 0.96)) !important;
    transform: translateX(4px);
}

.nav-item.active,
.nav-group.expanded > .nav-group-header {
    color: #ffffff !important;
    background:
        linear-gradient(90deg, rgba(255, 122, 26, 0.08), transparent 42%),
        linear-gradient(135deg, rgba(74, 106, 163, 0.98), rgba(53, 85, 141, 0.96)) !important;
    box-shadow: inset 0 0 0 1px rgba(216, 229, 255, 0.08);
}

.nav-item.active::before,
.nav-group.expanded > .nav-group-header::before {
    background: linear-gradient(180deg, var(--secondary), #ff9a3d);
}

.nav-group.expanded > .nav-group-header .arrow {
    transform: rotate(90deg);
}

.nav-sub-menu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.22s ease;
}

.nav-group.expanded > .nav-sub-menu {
    max-height: 2400px;
}

.nav-sub-item {
    display: grid;
    grid-template-columns: 1fr;
    text-decoration: none;
    margin: 2px 0 2px 40px;
    padding: 8px 12px;
    border-radius: 10px;
    color: rgba(255, 255, 255, 0.56);
    transition: background 140ms ease, transform 140ms ease, color 140ms ease;
    font-size: 13px;
}

.nav-sub-item.active {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.08);
    box-shadow: inset 3px 0 0 var(--secondary);
}

.nav-group-nested .nav-group-header {
    grid-template-columns: minmax(0, 1fr) auto;
    margin-left: 40px !important;
    padding-inline: 12px !important;
    color: rgba(255, 255, 255, 0.6) !important;
}

.nav-group-nested .nav-sub-item {
    margin-left: 56px;
    font-size: 12.5px;
}

.sidebar-footer {
    padding: 14px 6px 4px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: grid;
    gap: 12px;
}

.user-profile {
    padding: 12px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.05);
    margin-bottom: 0;
}

.user-avatar {
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: none;
}

.user-name {
    font-weight: 600;
}

.user-role {
    color: rgba(255, 255, 255, 0.62);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.sidebar-footer-actions {
    display: grid;
    gap: 10px;
}

.btn-portal,
.btn-logout {
    width: 100%;
    min-height: 46px;
    padding: 0 14px !important;
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    gap: 10px;
    border-radius: 14px !important;
    font-weight: 700;
}

.btn-portal {
    background: rgba(255, 102, 0, 0.14) !important;
    border: 1px solid rgba(255, 102, 0, 0.28) !important;
    color: var(--secondary) !important;
}

.btn-logout {
    background: rgba(255, 255, 255, 0.08) !important;
    border: 1px solid rgba(255, 255, 255, 0.08) !important;
}

.btn-portal:hover,
.btn-logout:hover {
    transform: translateY(-1px);
}

.btn-icon {
    width: 18px;
    height: 18px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.btn-icon svg {
    width: 18px;
    height: 18px;
}

.btn-label {
    white-space: nowrap;
}

.app-shell.sidebar-collapsed .sidebar {
    width: var(--sidebar-collapsed-width);
    padding-inline: 8px;
}

.app-shell.sidebar-collapsed .main-content {
    margin-left: var(--sidebar-collapsed-width);
}

.app-shell.sidebar-collapsed .brand-full,
.app-shell.sidebar-collapsed .brand-copy,
.app-shell.sidebar-collapsed .sidebar-section-label,
.app-shell.sidebar-collapsed .nav-item .label,
.app-shell.sidebar-collapsed .nav-group-header .label,
.app-shell.sidebar-collapsed .nav-group-header .arrow,
.app-shell.sidebar-collapsed .nav-sub-menu,
.app-shell.sidebar-collapsed .user-info,
.app-shell.sidebar-collapsed .btn-label {
    display: none !important;
}

.app-shell.sidebar-collapsed .brand-compact {
    display: flex;
}

.app-shell.sidebar-collapsed .sidebar-brand {
    padding: 0 0 14px;
    border-bottom: 0;
    display: grid;
    justify-items: center;
}

.app-shell.sidebar-collapsed .brand-head {
    flex-direction: column;
    align-items: center;
    gap: 12px;
    width: 100%;
}

.app-shell.sidebar-collapsed .brand-compact {
    width: 100%;
    justify-content: center;
}

.app-shell.sidebar-collapsed .brand-image-compact {
    display: block;
    height: 42px;
}

.app-shell.sidebar-collapsed .sidebar-toggle {
    width: 44px;
    height: 44px;
    margin: 0 auto;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.1);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.app-shell.sidebar-collapsed .orange-line {
    width: 54px;
    height: 4px;
    margin: 12px auto 0;
}

.app-shell.sidebar-collapsed .sidebar-nav {
    padding-inline: 6px !important;
    gap: 6px;
}

.app-shell.sidebar-collapsed .nav-item,
.app-shell.sidebar-collapsed .nav-group-header {
    grid-template-columns: 1fr;
    justify-items: center;
    padding: 12px 0 !important;
    min-height: 48px;
    transform: none !important;
}

.app-shell.sidebar-collapsed .nav-item .icon,
.app-shell.sidebar-collapsed .nav-group-header .icon {
    width: 20px;
    height: 20px;
}

.app-shell.sidebar-collapsed .nav-item:hover,
.app-shell.sidebar-collapsed .nav-group-header:hover {
    transform: none;
}

.app-shell.sidebar-collapsed .sidebar-footer {
    padding-inline: 6px;
    gap: 10px;
}

.app-shell.sidebar-collapsed .user-profile {
    justify-content: center;
    padding: 10px 0;
    background: transparent;
}

.app-shell.sidebar-collapsed .sidebar-footer-actions {
    justify-items: center;
}

.app-shell.sidebar-collapsed .btn-portal,
.app-shell.sidebar-collapsed .btn-logout {
    width: 44px;
    min-width: 44px;
    height: 44px;
    padding: 0 !important;
}

@media (max-width: 768px) {
    .app-shell .sidebar {
        width: min(320px, calc(100vw - 24px));
        padding: 16px 12px 14px;
    }

    .sidebar-toggle {
        display: none;
    }

    .app-shell .main-content {
        margin-left: 0 !important;
    }

    .sidebar-brand {
        padding-bottom: 12px;
    }

    .sidebar-nav {
        padding-bottom: 24px !important;
    }
}