/* ===================================
   Layout - Topbar, Sidebar, Grid, Panels
   =================================== */

/* ---- TOP BAR ---- */
.topbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--topbar-h);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    z-index: 100;
}

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

.sidebar-toggle {
    background: none;
    border: none;
    color: var(--text-secondary);
    padding: 8px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    transition: var(--t-fast);
}
.sidebar-toggle:hover {
    background: var(--bg-panel);
    color: var(--text-primary);
}

.topbar-logo {
    font-family: var(--font-mono);
    font-size: 13px;
    cursor: pointer;
    user-select: none;
}
.logo-prompt { color: var(--green); }
.logo-at { color: var(--text-muted); }
.logo-host { color: var(--blue); }
.logo-colon, .logo-path { color: var(--text-secondary); }
.logo-dollar { color: var(--text-muted); }

.topbar-breadcrumb {
    display: flex;
    align-items: center;
    gap: 4px;
    color: var(--text-muted);
    font-size: 13px;
}
.topbar-breadcrumb span {
    color: var(--text-secondary);
}

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

.topbar-time-range {
    display: flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-secondary);
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 6px 12px;
    cursor: pointer;
    transition: var(--t-fast);
}
.topbar-time-range:hover {
    border-color: var(--border-hover);
    color: var(--text-primary);
}

.topbar-terminal-btn {
    background: none;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 6px 10px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    transition: var(--t-fast);
}
.topbar-terminal-btn:hover {
    border-color: var(--green);
    color: var(--green);
}

.topbar-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid var(--border);
    transition: border-color var(--t-fast);
}
.topbar-avatar:hover {
    border-color: var(--green);
}
.topbar-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ---- SIDEBAR ---- */
.sidebar {
    position: fixed;
    top: var(--topbar-h);
    left: 0;
    bottom: 0;
    width: var(--sidebar-w);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    z-index: 90;
    transition: width var(--t-base);
    overflow: hidden;
}

.sidebar.expanded {
    width: var(--sidebar-w-expanded);
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    padding: 8px 0;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 18px;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    white-space: nowrap;
    transition: var(--t-fast);
    border-left: 3px solid transparent;
    text-decoration: none;
    position: relative;
}
.sidebar-link:hover {
    color: var(--text-primary);
    background: var(--bg-panel);
}
.sidebar-link.active {
    color: var(--text-bright);
    border-left-color: var(--green);
    background: rgba(0, 212, 170, 0.06);
}
.sidebar-link svg {
    flex-shrink: 0;
}

.sidebar-label {
    opacity: 0;
    transition: opacity var(--t-fast);
    pointer-events: none;
}
.sidebar.expanded .sidebar-label {
    opacity: 1;
    pointer-events: auto;
}

/* Tooltip for collapsed sidebar */
.sidebar:not(.expanded) .sidebar-link[data-tooltip]:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    left: calc(var(--sidebar-w) + 4px);
    top: 50%;
    transform: translateY(-50%);
    background: var(--bg-panel);
    color: var(--text-primary);
    font-size: 12px;
    padding: 4px 10px;
    border-radius: 4px;
    border: 1px solid var(--border);
    white-space: nowrap;
    z-index: 200;
    pointer-events: none;
}

.sidebar-footer {
    border-top: 1px solid var(--border);
    padding: 8px 0;
}

/* ---- MOBILE NAV ---- */
.mobile-nav {
    display: none;
}

.mobile-more-menu {
    display: none;
}

/* ---- MAIN CONTENT ---- */
.main-content {
    position: fixed;
    top: var(--topbar-h);
    left: var(--sidebar-w);
    right: 0;
    bottom: 0;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 24px;
    transition: left var(--t-base);
}

.sidebar.expanded ~ .main-content {
    left: var(--sidebar-w-expanded);
}

/* ---- DASHBOARD SECTIONS ---- */
.dashboard {
    display: none;
}
.dashboard.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.dashboard-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 12px;
}

.dashboard-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-bright);
}

.dashboard-actions {
    display: flex;
    gap: 8px;
}

/* ---- PANEL GRID ---- */
.panel-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 16px;
}

/* ---- PANEL ---- */
.panel {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: 4px;
    overflow: hidden;
    transition: border-color var(--t-fast), box-shadow var(--t-fast);
}
.panel:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-panel);
}

.panel-full  { grid-column: 1 / -1; }
.panel-wide  { grid-column: span 2; }
.panel-medium { grid-column: span 1; }
.panel-small { grid-column: span 1; }
.panel-tall  { grid-column: span 1; grid-row: span 2; }
.panel-stat  { grid-column: span 1; }

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 16px;
    border-bottom: 1px solid var(--border);
    background: rgba(0,0,0,0.15);
}

.panel-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.panel-subtitle {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-muted);
}

.panel-body {
    padding: 16px;
}

/* ---- STATUS BADGES ---- */
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 500;
    padding: 4px 10px;
    border-radius: 3px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-online {
    color: var(--green);
    background: var(--green-dim);
}
.status-running {
    color: var(--green);
    background: var(--green-dim);
}

.status-led {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--green);
    animation: blink 2s ease-in-out infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.status-led-gray {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--text-muted);
}