/* =========================================================================
   Layout Shell
   ========================================================================= */

#app-container {
    display: flex;
    min-height: 100vh;
}

#sidebar {
    width: var(--sidebar-width);
    position: sticky;
    top: 0;
    align-self: flex-start;
    height: 100vh;
    min-height: 100vh;
    background-color: var(--clr-navy);
    color: #fff;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.sidebar-header {
    height: 70px;
    display: flex;
    align-items: center;
    padding: 0 24px;
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.brand-lockup {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
}

.brand-mark {
    width: 42px;
    height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.28), rgba(59, 130, 246, 0.18));
    color: #dff5ff;
    box-shadow: inset 0 0 0 1px rgba(255,255,255,0.08), 0 10px 24px rgba(2, 132, 199, 0.18);
    flex-shrink: 0;
}

.brand-mark svg {
    width: 24px;
    height: 24px;
}

.brand-wordmark {
    display: inline-block;
    white-space: nowrap;
    letter-spacing: -0.03em;
}

.brand-lockup-sidebar .brand-wordmark {
    color: #fff;
}

.sidebar-location-switcher {
    padding: 12px 16px 10px;
}

.sidebar-location-card {
    padding: 12px;
    border: 1px solid rgba(148, 163, 184, 0.16);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.04);
}

.sidebar-location-select {
    width: 100%;
    min-height: 42px;
    background: rgba(15, 23, 42, 0.34);
    color: #fff;
    border-color: rgba(148, 163, 184, 0.2);
    font-weight: 600;
}

.sidebar-location-select:focus {
    border-color: rgba(125, 211, 252, 0.7);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.18);
}

.sidebar-nav {
    flex: 1;
    padding: 18px 0 24px;
    overflow-y: auto;
}

.sidebar-nav ul {
    list-style: none;
    margin: 8px 0 0;
    padding: 0;
}

.sidebar-nav li + li {
    margin-top: 2px;
}

.sidebar-nav li a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    border-left: 4px solid transparent;
    color: #cbd5e1;
    text-decoration: none;
    font-weight: 500;
    transition: all var(--transition);
}

.nav-link-icon {
    width: 36px;
    height: 36px;
    min-width: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.06);
    color: #e2e8f0;
    box-shadow: inset 0 0 0 1px rgba(255,255,255,0.05);
    transition: transform var(--transition), background-color var(--transition), color var(--transition), box-shadow var(--transition);
}

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

.nav-link-label {
    flex: 1;
    min-width: 0;
}

.nav-link-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 24px;
    height: 24px;
    padding: 0 8px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.14);
    color: #fff;
    font-size: 0.75rem;
}

.nav-link-badge.is-pulse,
.sidebar-nav li a.nav-alert-pulse .nav-link-badge {
    animation: navBadgePulse 1.2s ease-in-out infinite;
}

.sidebar-nav li a:hover,
.sidebar-nav li a.active {
    background-color: var(--clr-navy-hover);
    color: #fff;
    border-left-color: var(--clr-ocean);
}

.sidebar-nav li a.active .nav-link-icon {
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.28), rgba(59, 130, 246, 0.22));
    color: #fff;
    transform: translateY(-1px);
}

.sidebar-nav li a.nav-alert-warning {
    color: #fde68a;
}

.sidebar-nav li a.nav-alert-warning .nav-link-icon {
    color: #fde68a;
}

.sidebar-nav li a.nav-alert-warning .nav-link-badge {
    background: rgba(245, 158, 11, 0.28);
    color: #fff7d6;
}

.sidebar-nav li a.nav-alert-critical {
    color: #fecaca;
}

.sidebar-nav li a.nav-alert-critical .nav-link-icon {
    color: #fecaca;
}

.sidebar-nav li a.nav-alert-critical .nav-link-badge {
    background: rgba(239, 68, 68, 0.3);
    color: #fff1f2;
}

@keyframes navBadgePulse {
    0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.4); }
    70% { transform: scale(1.08); box-shadow: 0 0 0 10px rgba(239, 68, 68, 0); }
    100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); }
}

.sidebar-footer {
    padding: 24px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.sidebar-footer button {
    background: transparent;
    border: none;
    color: var(--clr-text-muted);
    text-align: left;
    cursor: pointer;
    font-size: 1rem;
}

.sidebar-footer button:hover {
    color: #fff;
}

#main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.topbar {
    height: 70px;
    padding: 0 32px;
    background-color: var(--clr-card);
    border-bottom: 1px solid var(--clr-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.page-title {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--clr-navy);
}

.content-wrapper {
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
    padding: 24px 32px 40px;
}

.table-search-toolbar {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
    margin-top: 18px;
}

body.is-login #sidebar,
body.is-login .topbar {
    display: none;
}

body.is-login {
    --sidebar-width: 0px;
}

body.is-login #main-content {
    justify-content: center;
    align-items: center;
    background-color: var(--clr-surface);
}

body.is-login .content-wrapper {
    padding: 0;
    display: flex;
    justify-content: center;
}

@media (max-width: 900px) {
    .topbar {
        padding: 0 20px;
    }

    .content-wrapper {
        padding: 20px;
    }

    .table-search-toolbar {
        grid-template-columns: 1fr;
    }

    .sidebar-location-switcher {
        padding: 14px 16px 10px;
    }
}