/* ============================================
   LAYOUT — Sidebar, Topbar, Screen, Grid
   ============================================ */

/* ---- App wrapper ---- */
#app {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: grid;
    grid-template-columns: 220px 1fr;
}

/* ---- Sidebar ---- */
.sidebar {
    position: sticky;
    top: 0;
    height: 100vh;
    background: #0d1120;
    border-right: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    z-index: 110;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: var(--sp-sm);
    padding: var(--sp-lg) var(--sp-md);
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    white-space: nowrap;
    color: var(--text-primary);
    border-bottom: 1px solid var(--glass-border);
}

.sidebar-nav {
    flex: 1;
    padding: var(--sp-sm) 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.sidebar-btn {
    display: flex;
    align-items: center;
    gap: var(--sp-sm);
    width: 100%;
    padding: 10px var(--sp-md);
    background: transparent;
    border: none;
    border-left: 3px solid transparent;
    color: var(--text-secondary);
    font-family: var(--font);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: left;
}

.sidebar-btn svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.sidebar-btn:hover {
    color: var(--text-primary);
    background: rgba(100, 120, 200, 0.08);
}

.sidebar-btn.active {
    color: var(--accent-light);
    background: rgba(108, 92, 231, 0.12);
    border-left-color: var(--accent);
    font-weight: 600;
}

.sidebar-divider {
    height: 1px;
    background: var(--glass-border);
    margin: var(--sp-sm) var(--sp-md);
}

/* ---- Status Dot ---- */
.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--success);
    box-shadow: 0 0 8px var(--success-glow);
    animation: pulse 2.5s infinite;
    flex-shrink: 0;
}

/* ---- Sidebar Backdrop (mobile) ---- */
.sidebar-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 109;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.sidebar-backdrop.open {
    opacity: 1;
    visibility: visible;
}

/* ---- Main Area ---- */
.main-area {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    overflow-y: auto;
}

/* ---- Topbar ---- */
.topbar {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--sp-sm) var(--sp-lg);
    background: rgba(10, 14, 26, 0.75);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border-bottom: 1px solid var(--glass-border);
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: var(--sp-sm);
}

.topbar-center {
    flex: 1;
    display: flex;
    justify-content: center;
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: var(--sp-sm);
}

.sidebar-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: transparent;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.sidebar-toggle:hover {
    color: var(--text-primary);
    background: rgba(100, 120, 200, 0.08);
}

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

/* ---- Heartbeat Badge ---- */
.heartbeat-badge {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: var(--radius-full);
}

.heartbeat-badge.fresh {
    color: var(--success);
    background: rgba(0, 206, 201, 0.12);
    animation: heartbeatPulse 3s ease-in-out infinite;
}

.heartbeat-badge.stale {
    color: var(--danger);
    background: rgba(255, 107, 107, 0.12);
}

@keyframes heartbeatPulse {
    0%, 100% { box-shadow: none; }
    50% { box-shadow: 0 0 8px rgba(0, 206, 201, 0.25); }
}

/* ---- Autonomy Bridge dispatch health badge ---- */
.dispatch-health-badge {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    display: none; /* hidden until first health read */
}

.dispatch-health-badge.healthy {
    display: inline-block;
    color: var(--success);
    background: rgba(0, 206, 201, 0.12);
}

.dispatch-health-badge.degraded {
    display: inline-block;
    color: var(--danger);
    background: rgba(255, 107, 107, 0.12);
    animation: dispatchAlertPulse 2s ease-in-out infinite;
}

@keyframes dispatchAlertPulse {
    0%, 100% { box-shadow: none; }
    50% { box-shadow: 0 0 8px rgba(255, 107, 107, 0.35); }
}

/* ---- Agent Status Bar (topbar) ---- */
.agent-status-bar {
    display: flex;
    align-items: center;
    gap: 6px;
}

.agent-status-pip {
    position: relative;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.6rem;
    font-weight: 700;
    color: #fff;
    opacity: 0.35;
    transition: opacity 0.3s, box-shadow 0.3s;
    cursor: default;
}

.agent-status-pip.working {
    opacity: 1;
    animation: agentPulse 1.5s ease-in-out infinite;
}

.agent-status-pip-tooltip {
    display: none;
    position: absolute;
    bottom: -30px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    padding: 2px 8px;
    font-size: 0.65rem;
    font-weight: 500;
    white-space: nowrap;
    z-index: 100;
    pointer-events: none;
}

.agent-status-pip:hover .agent-status-pip-tooltip {
    display: block;
}

@keyframes agentPulse {
    0%, 100% { box-shadow: 0 0 0 0 currentColor; }
    50% { box-shadow: 0 0 8px 2px currentColor; }
}

/* ---- Search ---- */
.search-trigger {
    display: flex;
    align-items: center;
    gap: var(--sp-sm);
    background: var(--bg-input);
    border: 1px solid var(--glass-border);
    color: var(--text-muted);
    font-family: var(--font);
    font-size: 0.8rem;
    padding: 6px 14px;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.search-trigger:hover {
    border-color: var(--glass-border-hover);
    color: var(--text-secondary);
}

.search-trigger kbd {
    font-family: var(--font);
    font-size: 0.7rem;
    background: rgba(100, 120, 200, 0.1);
    padding: 2px 6px;
    border-radius: 4px;
    border: 1px solid rgba(100, 120, 200, 0.15);
}

/* ---- Screen Content ---- */
.screen-content {
    flex: 1;
    padding: var(--sp-lg);
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
}

.screen {
    display: none;
    animation: fadeIn 0.3s var(--ease-out) both;
}

.screen.active {
    display: block;
}

/* ---- Grid Utilities ---- */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--sp-lg);
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--sp-lg);
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--sp-lg);
}

.grid-auto {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--sp-lg);
}

/* ---- Section Titles ---- */
.section-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--sp-md);
    display: flex;
    align-items: center;
    gap: var(--sp-sm);
}

.section-title .emoji {
    font-size: 1.1rem;
}

/* ---- Responsive ---- */
@media (max-width: 1200px) {
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    #app {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: fixed;
        left: -220px;
        width: 220px;
        transition: left var(--transition-normal);
    }

    .sidebar.open {
        left: 0;
    }

    .sidebar-toggle {
        display: flex;
    }

    .screen-content {
        padding: var(--sp-md);
    }

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

    .grid-auto {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .topbar {
        padding: var(--sp-xs) var(--sp-md);
    }

    .screen-content {
        padding: var(--sp-sm);
    }

    .search-trigger kbd {
        display: none;
    }
}