/* ==========================================================================
   Pinger — Enterprise NOC Design System & Styles
   ========================================================================== */

:root {
    --bg-color: #0b0f19;
    --surface-color: rgba(26, 32, 53, 0.7);
    --surface-solid: #111827;
    --surface-border: rgba(255, 255, 255, 0.08);
    --surface-border-hover: rgba(255, 255, 255, 0.16);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    --success-color: #10b981;
    --success-bg: rgba(16, 185, 129, 0.12);
    --success-glow: rgba(16, 185, 129, 0.25);
    
    --danger-color: #ef4444;
    --danger-bg: rgba(239, 68, 68, 0.12);
    --danger-glow: rgba(239, 68, 68, 0.25);
    
    --warning-color: #f59e0b;
    --warning-bg: rgba(245, 158, 11, 0.12);
    --warning-glow: rgba(245, 158, 11, 0.25);
    
    --flapping-color: #a855f7;
    --flapping-bg: rgba(168, 85, 247, 0.12);
    --flapping-glow: rgba(168, 85, 247, 0.25);

    --maint-color: #38bdf8;
    --maint-bg: rgba(56, 189, 248, 0.12);

    --primary-color: #3b82f6;
    --primary-hover: #2563eb;
    --primary-bg: rgba(59, 130, 246, 0.12);
    --accent-purple: #8b5cf6;
    --accent-purple-bg: rgba(139, 92, 246, 0.12);

    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.15);

    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);

    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;
}

* { box-sizing: border-box; margin: 0; padding: 0; font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }

body {
    background-color: var(--bg-color); color: var(--text-primary); min-height: 100vh;
    background-image:
        radial-gradient(circle at 15% 50%, rgba(59, 130, 246, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 85% 30%, rgba(16, 185, 129, 0.05) 0%, transparent 50%);
    background-attachment: fixed;
}

.dashboard-container { max-width: 1480px; margin: 0 auto; padding: 1.75rem 2rem; }

/* ==========================================================================
   Header & NOC KPI Bar
   ========================================================================== */
.dashboard-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.5rem; padding-bottom: 1.5rem; border-bottom: 1px solid var(--surface-border); gap: 1rem; flex-wrap: wrap; }
.logo { display: flex; align-items: center; gap: 0.75rem; }
.pulse-dot { width: 12px; height: 12px; background-color: var(--success-color); border-radius: 50%; box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); animation: pulse 2s infinite; }
@keyframes pulse { 0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); } 70% { transform: scale(1); box-shadow: 0 0 0 10px rgba(16, 185, 129, 0); } 100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); } }
.logo h1 { font-size: 2.2rem; font-weight: 700; background: linear-gradient(135deg, #0068A8 0%, #91D000 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.badge-tag { font-size: 0.7rem; font-weight: 700; padding: 0.2rem 0.55rem; background: var(--primary-bg); color: var(--primary-color); border: 1px solid rgba(59, 130, 246, 0.3); border-radius: var(--radius-full); text-transform: uppercase; }
.subtitle { color: var(--text-secondary); font-size: 0.88rem; margin-top: 0.2rem; }
.header-right { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
.stats { display: flex; gap: 0.55rem; flex-wrap: wrap; }
.stat-box { background: var(--surface-color); border: 1px solid var(--surface-border); border-radius: var(--radius-lg); padding: 0.55rem 0.9rem; display: flex; flex-direction: column; align-items: center; backdrop-filter: blur(10px); transition: var(--transition-fast); min-width: 65px; }
.stat-box:hover { border-color: var(--surface-border-hover); }
.stat-value { font-size: 1.3rem; font-weight: 700; }
.stat-label { font-size: 0.65rem; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.05em; margin-top: 0.1rem; }
.stat-box.online .stat-value { color: var(--success-color); }
.stat-box.warning .stat-value { color: var(--warning-color); }
.stat-box.offline .stat-value { color: var(--danger-color); }
.stat-box.flapping .stat-value { color: var(--flapping-color); }

.header-actions { display: flex; align-items: center; gap: 0.55rem; flex-wrap: wrap; }

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn { display: inline-flex; align-items: center; gap: 0.45rem; padding: 0.65rem 1.15rem; border-radius: var(--radius-md); font-weight: 600; font-size: 0.88rem; cursor: pointer; transition: var(--transition-smooth); border: none; outline: none; user-select: none; }
.btn.primary { background-color: var(--primary-color); color: white; box-shadow: 0 4px 14px 0 rgba(59, 130, 246, 0.39); }
.btn.primary:hover { background-color: var(--primary-hover); transform: translateY(-1px); }
.btn.secondary { background-color: transparent; color: var(--text-primary); border: 1px solid var(--surface-border); }
.btn.secondary:hover { background-color: rgba(255, 255, 255, 0.05); border-color: var(--surface-border-hover); }
.btn.danger { background-color: var(--danger-color); color: white; }
.btn.danger:hover { background-color: #dc2626; }
.btn-sm { padding: 0.4rem 0.75rem; font-size: 0.8rem; }
.btn-icon-only { padding: 0.65rem 0.85rem; }

/* ==========================================================================
   Search & Filter Bar
   ========================================================================== */
.search-bar { display: flex; align-items: center; gap: 0.75rem; background: var(--surface-color); border: 1px solid var(--surface-border); border-radius: var(--radius-lg); padding: 0.5rem 1rem; margin-bottom: 1.75rem; backdrop-filter: blur(10px); transition: var(--transition-fast); }
.search-bar:focus-within { border-color: var(--primary-color); box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.15); }
.search-bar svg { color: var(--text-secondary); flex-shrink: 0; }
.search-bar input { flex: 1; background: transparent; border: none; outline: none; color: var(--text-primary); font-size: 0.95rem; padding: 0.4rem 0; }
.search-bar input::placeholder { color: var(--text-muted); }
.filter-pills { display: flex; gap: 0.4rem; flex-shrink: 0; flex-wrap: wrap; }
.pill { background: transparent; border: 1px solid var(--surface-border); color: var(--text-secondary); padding: 0.3rem 0.75rem; border-radius: var(--radius-full); font-size: 0.76rem; font-weight: 500; cursor: pointer; transition: var(--transition-fast); }
.pill:hover { border-color: var(--surface-border-hover); color: var(--text-primary); }
.pill.active { background: var(--primary-bg); border-color: var(--primary-color); color: var(--primary-color); font-weight: 600; }

/* ==========================================================================
   Connection Banner
   ========================================================================== */
.connection-banner { display: none; align-items: center; gap: 0.5rem; background: var(--warning-bg); border: 1px solid rgba(245, 158, 11, 0.3); border-radius: var(--radius-md); padding: 0.65rem 1rem; margin-bottom: 1.5rem; color: var(--warning-color); font-size: 0.875rem; font-weight: 500; }
.connection-banner.show { display: flex; }

/* ==========================================================================
   Grid Layout & Network Group Header
   ========================================================================== */
.grid-container { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 0.75rem; }

.network-group-header {
    grid-column: 1 / -1; display: flex; align-items: center; justify-content: space-between;
    padding: 0.8rem 1.15rem; background: linear-gradient(135deg, rgba(139, 92, 246, 0.12), rgba(59, 130, 246, 0.05));
    border: 1px solid rgba(139, 92, 246, 0.25); border-radius: var(--radius-lg); margin-top: 0.75rem;
}
.network-group-header:first-child { margin-top: 0; }
.network-group-info { display: flex; align-items: center; gap: 0.75rem; }
.network-group-icon { width: 32px; height: 32px; border-radius: var(--radius-md); background: var(--accent-purple-bg); display: flex; align-items: center; justify-content: center; color: var(--accent-purple); font-size: 1.05rem; }
.network-group-name { font-weight: 700; font-size: 0.98rem; }
.network-group-subnet { font-family: 'Courier New', monospace; font-size: 0.8rem; color: var(--text-muted); }
.network-group-stats { display: flex; gap: 0.9rem; font-size: 0.82rem; }
.network-group-stats span { display: flex; align-items: center; gap: 0.3rem; }
.network-group-stats .online-stat { color: var(--success-color); font-weight: 600; }
.network-group-stats .offline-stat { color: var(--danger-color); font-weight: 600; }

/* ==========================================================================
   Device Card (Square Aspect Ratio)
   ========================================================================== */
.stat-box.grand-total-box {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.25), rgba(168, 85, 247, 0.25));
    border: 1px solid rgba(168, 85, 247, 0.4);
    box-shadow: 0 0 12px rgba(168, 85, 247, 0.2);
}
.stat-box.grand-total-box .stat-value {
    color: #a855f7;
}

.device-card {
    background: var(--surface-color); border: 1px solid var(--surface-border);
    border-radius: var(--radius-lg); padding: 0.75rem; backdrop-filter: blur(12px);
    transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.2s ease;
    position: relative; overflow: hidden; display: flex; flex-direction: column;
    justify-content: space-between; min-height: 185px; cursor: pointer;
}
.device-card::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 3px; transition: background 0.3s ease; }
.device-card.online::before { background: linear-gradient(90deg, var(--success-color), rgba(16, 185, 129, 0.3)); }
.device-card.warning::before { background: linear-gradient(90deg, var(--warning-color), rgba(245, 158, 11, 0.3)); }
.device-card.offline::before { background: linear-gradient(90deg, var(--danger-color), rgba(239, 68, 68, 0.3)); }
.device-card.flapping::before { background: linear-gradient(90deg, var(--flapping-color), rgba(168, 85, 247, 0.3)); }
.device-card.maintenance::before { background: linear-gradient(90deg, var(--maint-color), rgba(56, 189, 248, 0.3)); }

.device-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); border-color: var(--surface-border-hover); }
.device-card.online:hover { box-shadow: var(--shadow-lg), 0 4px 18px var(--success-glow); }
.device-card.warning:hover { box-shadow: var(--shadow-lg), 0 4px 18px var(--warning-glow); }
.device-card.offline:hover { box-shadow: var(--shadow-lg), 0 4px 18px var(--danger-glow); }
.device-card.flapping:hover { box-shadow: var(--shadow-lg), 0 4px 18px var(--flapping-glow); }

.card-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 0.4rem; }
.device-title-wrap { max-width: 68%; overflow: hidden; }
.device-name { font-size: 0.82rem; font-weight: 700; margin-bottom: 0.15rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; display: flex; align-items: center; gap: 0.25rem; }
.device-ip-row { display: flex; align-items: center; gap: 0.3rem; font-family: 'Courier New', monospace; font-size: 0.72rem; color: var(--text-secondary); flex-wrap: wrap; }
.protocol-tag { font-size: 0.6rem; padding: 0.08rem 0.3rem; border-radius: var(--radius-sm); background: rgba(255, 255, 255, 0.08); text-transform: uppercase; font-family: 'Inter', sans-serif; font-weight: 600; color: var(--text-secondary); }
.device-location { font-size: 0.68rem; color: var(--text-muted); margin-top: 0.15rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.status-badge { display: inline-flex; align-items: center; gap: 0.25rem; padding: 0.15rem 0.45rem; border-radius: var(--radius-full); font-size: 0.62rem; font-weight: 700; text-transform: uppercase; flex-shrink: 0; }
.status-badge .status-dot { width: 5px; height: 5px; border-radius: 50%; }
.online .status-badge { background-color: var(--success-bg); color: var(--success-color); border: 1px solid rgba(16, 185, 129, 0.3); }
.online .status-badge .status-dot { background-color: var(--success-color); box-shadow: 0 0 6px var(--success-color); }
.warning .status-badge { background-color: var(--warning-bg); color: var(--warning-color); border: 1px solid rgba(245, 158, 11, 0.3); }
.warning .status-badge .status-dot { background-color: var(--warning-color); box-shadow: 0 0 6px var(--warning-color); }
.offline .status-badge { background-color: var(--danger-bg); color: var(--danger-color); border: 1px solid rgba(239, 68, 68, 0.3); }
.offline .status-badge .status-dot { background-color: var(--danger-color); box-shadow: 0 0 6px var(--danger-color); }
.flapping .status-badge { background-color: var(--flapping-bg); color: var(--flapping-color); border: 1px solid rgba(168, 85, 247, 0.3); }
.flapping .status-badge .status-dot { background-color: var(--flapping-color); box-shadow: 0 0 6px var(--flapping-color); }
.maintenance .status-badge { background-color: var(--maint-bg); color: var(--maint-color); border: 1px solid rgba(56, 189, 248, 0.3); }
.maintenance .status-badge .status-dot { background-color: var(--maint-color); }

.card-metrics { display: flex; justify-content: space-between; gap: 0.3rem; margin-bottom: 0.35rem; background: rgba(0, 0, 0, 0.2); padding: 0.3rem 0.5rem; border-radius: var(--radius-md); border: 1px solid var(--surface-border); }
.metric { display: flex; flex-direction: column; gap: 0.05rem; }
.metric-value { font-size: 0.78rem; font-weight: 700; white-space: nowrap; }
.metric-value.good { color: var(--success-color); }
.metric-value.warn { color: var(--warning-color); }
.metric-value.bad { color: var(--danger-color); }
.metric-label { font-size: 0.58rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.03em; }

.sparkline-container { margin-bottom: 0.25rem; padding: 0; height: 20px; }
.sparkline-container svg { width: 100%; height: 18px; overflow: visible; }

.card-actions { margin-top: auto; padding-top: 0.4rem; border-top: 1px solid var(--surface-border); display: flex; justify-content: space-between; align-items: center; gap: 0.25rem; }
.card-actions .last-seen-text { font-size: 0.65rem; color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 55%; }
.card-actions-buttons { display: flex; gap: 0.2rem; flex-shrink: 0; }
.icon-btn { background: rgba(255,255,255,0.04); border: 1px solid var(--surface-border); color: var(--text-secondary); cursor: pointer; padding: 0.3rem 0.4rem; border-radius: var(--radius-sm); transition: var(--transition-fast); display: inline-flex; align-items: center; justify-content: center; }
.icon-btn:hover { color: var(--text-primary); background-color: rgba(255, 255, 255, 0.08); border-color: var(--surface-border-hover); }
.icon-btn.ping-btn:hover { color: var(--primary-color); background-color: var(--primary-bg); border-color: rgba(59,130,246,0.4); }
.icon-btn.delete:hover { color: var(--danger-color); background-color: var(--danger-bg); border-color: rgba(239,68,68,0.4); }

/* ==========================================================================
   Detail & SLA Analytics Modal
   ========================================================================== */
.detail-modal-content { max-width: 680px; width: 95vw; }
.detail-ip-sub { font-family: 'Courier New', monospace; font-size: 0.82rem; color: var(--text-muted); margin-top: 0.15rem; }

.detail-kpi-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.75rem; margin-bottom: 1.25rem; }
.kpi-card { background: rgba(0, 0, 0, 0.25); border: 1px solid var(--surface-border); border-radius: var(--radius-lg); padding: 0.75rem; text-align: center; }
.kpi-value { font-size: 1.2rem; font-weight: 700; color: var(--primary-color); margin-bottom: 0.15rem; }
.kpi-label { font-size: 0.68rem; color: var(--text-muted); text-transform: uppercase; }

.chart-section { background: rgba(0, 0, 0, 0.2); border: 1px solid var(--surface-border); border-radius: var(--radius-lg); padding: 1rem; margin-bottom: 1.15rem; }
.chart-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.75rem; }
.chart-header h4 { font-size: 0.88rem; font-weight: 600; }
.chart-legend { font-size: 0.72rem; color: var(--text-secondary); }
.chart-canvas-container { height: 130px; position: relative; }
.chart-canvas-container canvas { width: 100% !important; height: 100% !important; }

.detail-maintenance-box { display: flex; justify-content: space-between; align-items: center; background: var(--maint-bg); border: 1px solid rgba(56, 189, 248, 0.25); border-radius: var(--radius-lg); padding: 0.75rem 1rem; margin-bottom: 1.15rem; }
.maintenance-actions { display: flex; gap: 0.4rem; }

.events-section h4 { font-size: 0.88rem; font-weight: 600; margin-bottom: 0.6rem; }
.events-list { max-height: 160px; overflow-y: auto; display: flex; flex-direction: column; gap: 0.45rem; }
.event-item { display: flex; justify-content: space-between; align-items: center; background: rgba(0, 0, 0, 0.25); border: 1px solid var(--surface-border); border-radius: var(--radius-md); padding: 0.5rem 0.75rem; font-size: 0.78rem; }
.event-tag { font-weight: 700; font-size: 0.7rem; padding: 0.1rem 0.4rem; border-radius: var(--radius-sm); text-transform: uppercase; }
.event-tag.online { background: var(--success-bg); color: var(--success-color); }
.event-tag.offline { background: var(--danger-bg); color: var(--danger-color); }
.event-tag.flapping { background: var(--flapping-bg); color: var(--flapping-color); }
.event-tag.maintenance { background: var(--maint-bg); color: var(--maint-color); }
.event-details { color: var(--text-secondary); margin-left: 0.5rem; flex: 1; }
.event-time { color: var(--text-muted); font-size: 0.7rem; }

/* ==========================================================================
   Auto-Discovery Modal
   ========================================================================== */
.discovery-modal-content { max-width: 780px; width: 95vw; }
.discovery-controls { margin-bottom: 1.25rem; }
.scan-progress-box { background: rgba(0, 0, 0, 0.25); border: 1px solid var(--surface-border); border-radius: var(--radius-md); padding: 0.75rem 1rem; margin-top: 0.85rem; }
.progress-info { display: flex; justify-content: space-between; font-size: 0.82rem; margin-bottom: 0.4rem; font-weight: 500; }
.progress-bar-track { height: 8px; background: rgba(255, 255, 255, 0.1); border-radius: var(--radius-full); overflow: hidden; }
.progress-bar-fill { height: 100%; background: linear-gradient(90deg, var(--primary-color), var(--success-color)); width: 0%; transition: width 0.25s ease; }

.discovery-results-box { border-top: 1px solid var(--surface-border); padding-top: 1rem; }
.discovery-results-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.75rem; }
.discovery-table-wrap { max-height: 260px; overflow-y: auto; border: 1px solid var(--surface-border); border-radius: var(--radius-md); }
.discovery-table { width: 100%; border-collapse: collapse; font-size: 0.82rem; text-align: left; }
.discovery-table th { background: rgba(0, 0, 0, 0.4); padding: 0.6rem 0.75rem; color: var(--text-muted); font-weight: 600; font-size: 0.72rem; text-transform: uppercase; }
.discovery-table td { padding: 0.6rem 0.75rem; border-top: 1px solid var(--surface-border); }
.vendor-badge { display: inline-block; padding: 0.15rem 0.5rem; border-radius: var(--radius-sm); font-size: 0.72rem; font-weight: 600; background: var(--primary-bg); color: var(--primary-color); border: 1px solid rgba(59, 130, 246, 0.3); }

/* ==========================================================================
   Settings Panel & Forms
   ========================================================================== */
.settings-overlay { position: fixed; top: 0; left: 0; width: 100vw; height: 100vh; background: rgba(0, 0, 0, 0.65); z-index: 900; opacity: 0; pointer-events: none; transition: opacity 0.3s ease; }
.settings-overlay.show { opacity: 1; pointer-events: all; }
.settings-panel { position: fixed; top: 0; right: 0; width: 560px; max-width: 94vw; height: 100vh; background: var(--surface-solid); border-left: 1px solid var(--surface-border); z-index: 950; transform: translateX(100%); transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1); display: flex; flex-direction: column; overflow: hidden; box-shadow: -10px 0 40px rgba(0, 0, 0, 0.5); }
.settings-panel.show { transform: translateX(0); }
.settings-header { display: flex; justify-content: space-between; align-items: center; padding: 1.35rem 1.5rem 1rem; border-bottom: 1px solid var(--surface-border); }
.settings-header h2 { font-size: 1.25rem; font-weight: 700; }
.settings-subtitle { font-size: 0.78rem; color: var(--text-muted); margin-top: 0.15rem; }
.settings-tabs { display: flex; padding: 0 1.5rem; border-bottom: 1px solid var(--surface-border); }
.settings-tab { display: flex; align-items: center; gap: 0.45rem; padding: 0.8rem 1.15rem; background: transparent; border: none; border-bottom: 2px solid transparent; color: var(--text-secondary); font-size: 0.88rem; font-weight: 600; cursor: pointer; transition: var(--transition-fast); }
.settings-tab:hover { color: var(--text-primary); }
.settings-tab.active { color: var(--primary-color); border-bottom-color: var(--primary-color); }
.settings-tab-content { display: none; flex: 1; overflow-y: auto; padding: 1.35rem 1.5rem 2rem; }
.settings-tab-content.active { display: flex; flex-direction: column; }
.settings-section-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 1.2rem; }
.settings-section-header h3 { font-size: 1rem; font-weight: 600; margin-bottom: 0.2rem; }
.settings-desc { font-size: 0.8rem; color: var(--text-muted); max-width: 320px; line-height: 1.4; }
.settings-list { display: flex; flex-direction: column; gap: 0.75rem; }
.settings-item { display: flex; justify-content: space-between; align-items: center; padding: 0.95rem 1.15rem; background: var(--surface-color); border: 1px solid var(--surface-border); border-radius: var(--radius-lg); transition: var(--transition-fast); }
.settings-item:hover { border-color: var(--surface-border-hover); }
.settings-item-name { font-weight: 600; font-size: 0.92rem; margin-bottom: 0.15rem; }
.settings-item-detail { font-size: 0.8rem; color: var(--text-muted); font-family: 'Courier New', monospace; }
.settings-item-meta { font-size: 0.72rem; color: var(--text-secondary); margin-top: 0.25rem; display: flex; gap: 0.75rem; }
.settings-item-actions { display: flex; gap: 0.3rem; }
.settings-card { background: var(--surface-color); border: 1px solid var(--surface-border); border-radius: var(--radius-lg); padding: 1.25rem; margin-bottom: 1.25rem; }
.settings-card-header { display: flex; align-items: center; gap: 0.85rem; margin-bottom: 1rem; }
.settings-card-header h4 { font-size: 0.95rem; font-weight: 600; }
.settings-card-body { display: flex; flex-direction: column; gap: 0.85rem; }
.toggle-switch { position: relative; display: inline-block; width: 44px; height: 24px; flex-shrink: 0; }
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-slider { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background-color: rgba(255, 255, 255, 0.1); transition: 0.3s; border-radius: 24px; border: 1px solid var(--surface-border); }
.toggle-slider:before { position: absolute; content: ""; height: 16px; width: 16px; left: 3px; bottom: 3px; background-color: white; transition: 0.3s; border-radius: 50%; }
input:checked + .toggle-slider { background-color: var(--primary-color); border-color: var(--primary-color); }
input:checked + .toggle-slider:before { transform: translateX(20px); }
.settings-actions-footer { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-top: 1rem; padding-top: 1.25rem; border-top: 1px solid var(--surface-border); }

/* ==========================================================================
   Modals & Forms
   ========================================================================== */
.modal-backdrop { position: fixed; top: 0; left: 0; width: 100vw; height: 100vh; background-color: rgba(0, 0, 0, 0.65); backdrop-filter: blur(4px); display: flex; justify-content: center; align-items: center; z-index: 1000; opacity: 0; pointer-events: none; transition: var(--transition-normal); }
.modal-backdrop.show { opacity: 1; pointer-events: all; }
.modal-content { background-color: var(--surface-solid); border: 1px solid var(--surface-border); border-radius: var(--radius-xl); width: 100%; max-width: 480px; padding: 1.85rem; transform: scale(0.95) translateY(10px); transition: var(--transition-smooth); box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5); max-height: 90vh; overflow-y: auto; }
.modal-backdrop.show .modal-content { transform: scale(1) translateY(0); }
.modal-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.35rem; }
.modal-header h2 { font-size: 1.2rem; font-weight: 700; }
.close-btn { background: transparent; border: none; color: var(--text-secondary); font-size: 1.5rem; cursor: pointer; transition: var(--transition-fast); line-height: 1; }
.close-btn:hover { color: var(--text-primary); }

.confirm-modal-content { text-align: center; max-width: 380px; }
.confirm-icon { color: var(--danger-color); margin-bottom: 1rem; }
.confirm-modal-content h2 { margin-bottom: 0.5rem; font-size: 1.2rem; }
.confirm-message { color: var(--text-secondary); font-size: 0.88rem; margin-bottom: 0.5rem; }
.confirm-modal-content .modal-footer { justify-content: center; }

.form-group { margin-bottom: 1rem; }
.form-group label { display: block; margin-bottom: 0.4rem; font-size: 0.82rem; font-weight: 600; color: var(--text-secondary); }
.form-group input, .form-select { width: 100%; padding: 0.65rem 0.9rem; background-color: rgba(0, 0, 0, 0.25); border: 1px solid var(--surface-border); border-radius: var(--radius-md); color: var(--text-primary); font-size: 0.92rem; transition: var(--transition-fast); }
.form-group input:focus, .form-select:focus { outline: none; border-color: var(--primary-color); box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2); }
.form-select option { background-color: var(--surface-solid); color: var(--text-primary); }
.field-hint { display: block; font-size: 0.72rem; color: var(--text-muted); margin-top: 0.25rem; }
.form-row { display: flex; gap: 0.85rem; }
.form-row .form-group { flex: 1; }
.modal-footer { display: flex; justify-content: flex-end; gap: 0.85rem; margin-top: 1.5rem; }

/* ==========================================================================
   Toast Notifications
   ========================================================================== */
.toast-container { position: fixed; top: 1.5rem; right: 1.5rem; z-index: 2000; display: flex; flex-direction: column; gap: 0.75rem; pointer-events: none; }
.toast { display: flex; align-items: center; gap: 0.75rem; padding: 0.85rem 1.25rem; border-radius: var(--radius-lg); background: var(--surface-solid); border: 1px solid var(--surface-border); box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35); min-width: 280px; max-width: 420px; pointer-events: auto; animation: toastSlideIn 0.35s cubic-bezier(0.21, 1.02, 0.73, 1) forwards; font-size: 0.88rem; font-weight: 500; }
.toast.removing { animation: toastSlideOut 0.3s ease forwards; }
.toast-icon { flex-shrink: 0; width: 20px; height: 20px; display: flex; align-items: center; justify-content: center; }
.toast.success { border-left: 3px solid var(--success-color); } .toast.success .toast-icon { color: var(--success-color); }
.toast.error { border-left: 3px solid var(--danger-color); } .toast.error .toast-icon { color: var(--danger-color); }
.toast.warning { border-left: 3px solid var(--warning-color); } .toast.warning .toast-icon { color: var(--warning-color); }
.toast.info { border-left: 3px solid var(--primary-color); } .toast.info .toast-icon { color: var(--primary-color); }
.toast-text { flex: 1; color: var(--text-primary); }
.toast-close { background: transparent; border: none; color: var(--text-muted); cursor: pointer; padding: 0.2rem; font-size: 1.1rem; line-height: 1; transition: var(--transition-fast); }
.toast-close:hover { color: var(--text-primary); }
@keyframes toastSlideIn { from { opacity: 0; transform: translateX(100%) scale(0.95); } to { opacity: 1; transform: translateX(0) scale(1); } }
@keyframes toastSlideOut { from { opacity: 1; transform: translateX(0) scale(1); } to { opacity: 0; transform: translateX(100%) scale(0.95); } }

/* ==========================================================================
   Empty State & Responsive
   ========================================================================== */
.empty-state { grid-column: 1 / -1; text-align: center; padding: 4rem 2rem; color: var(--text-secondary); }
.empty-state-icon { font-size: 3rem; margin-bottom: 1rem; opacity: 0.5; }
.empty-state h3 { font-size: 1.15rem; font-weight: 600; color: var(--text-primary); margin-bottom: 0.4rem; }
.empty-state p { font-size: 0.88rem; max-width: 400px; margin: 0 auto; line-height: 1.4; }

/* ==========================================================================
   Login Screen Overlay
   ========================================================================== */
.login-screen-overlay {
    position: fixed;
    top: 0; left: 0; width: 100vw; height: 100vh;
    background: radial-gradient(circle at 50% 35%, #171d31 0%, #0b0f19 75%);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(25px);
}
.login-card {
    width: 390px;
    max-width: 90vw;
    background: var(--surface-solid);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-xl);
    padding: 2.2rem;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.6), 0 0 32px rgba(59, 130, 246, 0.15);
}
.login-header { text-align: center; margin-bottom: 1.8rem; }
.login-header .logo { justify-content: center; margin-bottom: 0.5rem; flex-direction: column; gap: 0.2rem; }
.login-header .company-logo { max-height: 90px; width: auto; max-width: 100%; margin: 0 auto 1rem auto; display: block; }
.login-header h1 { font-size: 1.8rem; text-align: center; margin-top: 0; }
.password-input-wrap { position: relative; display: flex; align-items: center; }
.password-input-wrap input { padding-right: 2.5rem; }
.toggle-password-btn { position: absolute; right: 0.5rem; background: transparent; border: none; cursor: pointer; color: var(--text-secondary); padding: 0.3rem; border-radius: var(--radius-sm); font-size: 1rem; }
.login-error-msg { background: rgba(239, 68, 68, 0.15); border: 1px solid rgba(239, 68, 68, 0.3); color: var(--danger-color); padding: 0.65rem 0.8rem; border-radius: var(--radius-md); font-size: 0.82rem; margin-bottom: 1rem; text-align: center; font-weight: 500; }
.btn-block { width: 100%; display: flex; justify-content: center; align-items: center; gap: 0.5rem; padding: 0.75rem 1rem; font-weight: 600; font-size: 0.95rem; }

@media (max-width: 768px) {
    .dashboard-container { padding: 1rem; }
    .dashboard-header { flex-direction: column; align-items: flex-start; gap: 1rem; }
    .header-right { width: 100%; justify-content: space-between; }
    .search-bar { flex-wrap: wrap; }
    .filter-pills { width: 100%; justify-content: flex-start; padding-top: 0.25rem; }
    .grid-container { grid-template-columns: repeat(2, 1fr); }
    .settings-panel { width: 100%; max-width: 100vw; }
    .detail-kpi-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1600px) {
    .grid-container { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
}

/* ==========================================================================
   Custom Logo & Powered By Stamp
   ========================================================================== */
.company-logo {
    max-height: 140px;
    max-width: 400px;
    object-fit: contain;
    margin-right: 0.5rem;
    border-radius: var(--radius-md);
}

.powered-by-stamp {
    position: fixed;
    bottom: 1rem;
    right: 1.5rem;
    font-size: 0.85rem;
    font-weight: 700;
    color: #0068A8;
    background: rgba(255, 255, 255, 0.95);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    border: 2px solid #91D000;
    box-shadow: 0 4px 15px rgba(0, 104, 168, 0.3);
    backdrop-filter: blur(10px);
    z-index: 100;
    pointer-events: none;
    transition: var(--transition-fast);
}

.powered-by-stamp:hover {
    color: #005085;
    border-color: #72a300;
    box-shadow: 0 6px 20px rgba(0, 104, 168, 0.5);
}


/* ===========================================================================
   Pi Health Bar
   =========================================================================== */
.pi-health-bar {
    display: flex;
    align-items: center;
    gap: 0;
    background: var(--surface-2);
    border-bottom: 1px solid var(--border);
    padding: 0.35rem 1.5rem;
    font-size: 0.78rem;
    color: var(--text-secondary);
    flex-wrap: wrap;
    gap: 0.25rem;
}
.health-item {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.15rem 0.75rem;
}
.health-icon { font-size: 0.9rem; }
.health-label { color: var(--text-muted); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.04em; }
.health-val { font-weight: 600; font-size: 0.82rem; color: var(--text-primary); }
.health-val.hot  { color: #ef4444; }
.health-val.warm { color: #f59e0b; }
.health-val.cool { color: var(--online); }
.health-divider  { width: 1px; height: 1.2rem; background: var(--border); margin: 0 0.25rem; }
.health-bar-mini {
    width: 48px; height: 5px;
    background: var(--surface-3);
    border-radius: 999px; overflow: hidden;
}
.health-bar-fill {
    height: 100%; border-radius: 999px;
    background: var(--primary);
    transition: width 0.5s ease, background 0.3s;
}

/* ===========================================================================
   CSV Drop Zone
   =========================================================================== */
.csv-drop-zone {
    border: 2px dashed var(--border);
    border-radius: var(--radius-md);
    padding: 2rem 1.5rem;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
    display: flex; flex-direction: column; align-items: center;
    color: var(--text-muted);
}
.csv-drop-zone.dragover {
    border-color: var(--primary);
    background: rgba(0, 104, 168, 0.06);
}
.csv-drop-zone p { margin: 0; font-size: 0.88rem; }
.modal-footer {
    display: flex; justify-content: flex-end;
    gap: 0.75rem; padding: 1rem 1.5rem;
    border-top: 1px solid var(--border);
}