:root {
  --bg-dark: #070c12;
  --bg-card: rgba(13, 22, 33, 0.75);
  --bg-card-hover: rgba(19, 32, 48, 0.85);
  --border-subtle: rgba(76, 175, 255, 0.15);
  --border-glow: rgba(0, 240, 180, 0.35);
  
  --text-main: #f0f6fc;
  --text-muted: #8b9eb3;
  --text-dim: #546a82;

  --accent-cyan: #00f0ff;
  --accent-emerald: #00e5a3;
  --accent-amber: #ffb703;
  --accent-red: #ff3366;
  --accent-purple: #9d4edd;

  --font-display: 'Plus Jakarta Sans', -apple-system, sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  --shadow-panel: 0 16px 36px -8px rgba(0, 0, 0, 0.55), 0 0 0 1px var(--border-subtle);
  --shadow-glow-cyan: 0 0 24px rgba(0, 240, 255, 0.25);
  --shadow-glow-emerald: 0 0 24px rgba(0, 229, 163, 0.25);
  --shadow-glow-red: 0 0 24px rgba(255, 51, 102, 0.35);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  background-color: var(--bg-dark);
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(0, 240, 255, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 85% 85%, rgba(0, 229, 163, 0.06) 0%, transparent 40%),
    linear-gradient(165deg, #070c12 0%, #0a131c 100%);
  color: var(--text-main);
  font-family: var(--font-display);
  line-height: 1.5;
  overflow-x: hidden;
}

.ambient {
  position: fixed;
  z-index: -1;
  width: 32rem;
  height: 32rem;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
  opacity: 0.25;
}
.ambient-a { background: var(--accent-cyan); top: -10rem; left: -10rem; }
.ambient-b { background: var(--accent-emerald); bottom: -10rem; right: -10rem; }

/* Glassmorphism Panel */
.panel {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  box-shadow: var(--shadow-panel);
}

/* Centered Login Viewport & Panel */
.login-viewport {
  min-height: 100vh;
  width: 100vw;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1.5rem;
}

.login-panel {
  width: 100%;
  max-width: 440px;
  margin: auto;
  padding: 2.5rem;
  background: rgba(13, 22, 33, 0.85);
  border: 1px solid rgba(0, 240, 255, 0.2);
  border-radius: 16px;
  box-shadow: 0 20px 45px -10px rgba(0, 0, 0, 0.7), 0 0 25px rgba(0, 240, 255, 0.12);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  text-align: center;
  animation: fadeInRise 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.brand-badge {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--accent-cyan);
  margin-bottom: 0.75rem;
}

.login-panel h1 {
  font-size: 1.65rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, #ffffff 40%, var(--text-muted) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;

}

.login-panel .muted {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  line-height: 1.4;
}

/* App Shell Layout */
.app-container {
  display: flex;
  min-height: 100vh;
  width: 100vw;
  background-color: var(--bg-dark);
}


/* Left Sidebar */
.sidebar {
  width: 260px;
  min-width: 260px;
  background: #060a0f;
  border-right: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.5rem 1.25rem;
  z-index: 10;
}

.sidebar-brand {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin-bottom: 1.5rem;
}

.sidebar-brand .logo-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.sidebar-brand h2 {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #ffffff 0%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;

}

.sidebar-status {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  margin-top: 0.2rem;
}

.sidebar-btn-audit {
  background: #00f0ff;
  color: #030712;
  font-weight: 800;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.4);
  transition: transform 0.2s, box-shadow 0.2s;
  margin-bottom: 1.5rem;
}

.sidebar-btn-audit:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(0, 240, 255, 0.7);
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  list-style: none;
}

.sidebar-nav-btn {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.7rem 0.9rem;
  border-radius: 8px;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  background: transparent;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  text-align: left;
  width: 100%;
}

.sidebar-nav-btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.04);
}

.sidebar-nav-btn.active {
  background: rgba(0, 240, 255, 0.1);
  color: var(--accent-cyan);
  border-left: 3px solid var(--accent-cyan);
  font-weight: 600;
}

.sidebar-footer {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-subtle);
}

.user-session-card {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem 0.25rem;
}

.user-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--accent-cyan);
  border: 1px solid var(--border-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  color: #000;
  font-size: 0.8rem;
}

/* Main Content Area */
.main-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow-y: auto;
  background: #030712;
}

/* Topbar Header */
.top-header {
  height: 64px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  background: rgba(6, 10, 15, 0.8);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 9;
}

.search-bar {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 0.45rem 0.9rem;
  width: 380px;
}

.search-bar input {
  background: transparent;
  border: none;
  outline: none;
  color: #fff;
  font-size: 0.85rem;
  width: 100%;
}

.search-bar kbd {
  font-size: 0.7rem;
  background: rgba(255, 255, 255, 0.08);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--text-muted);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* View Canvas Container */
.content-body {
  padding: 2rem;
  flex: 1;
}

/* Command Center Top KPI Cards */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

.kpi-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.kpi-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.kpi-title {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  color: var(--text-muted);
  font-weight: 700;
}

.kpi-val-row {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
}

.kpi-value {
  font-size: 2rem;
  font-weight: 800;
  font-family: var(--font-mono);
}

.kpi-trend {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  display: inline-flex;
  align-items: center;
  gap: 2px;
}

.kpi-trend-cyan { background: rgba(0, 240, 255, 0.15); color: var(--accent-cyan); }
.kpi-trend-amber { background: rgba(255, 183, 3, 0.15); color: var(--accent-amber); }

.kpi-bar {
  height: 4px;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.06);
  overflow: hidden;
  position: relative;
}

.kpi-bar-fill-cyan { width: 65%; height: 100%; background: var(--accent-cyan); box-shadow: 0 0 8px var(--accent-cyan); }
.kpi-bar-fill-amber { width: 35%; height: 100%; background: var(--accent-amber); box-shadow: 0 0 8px var(--accent-amber); }


.login-panel .muted {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 1.75rem;
}

.stack {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
}

input, select, textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  background: rgba(4, 9, 15, 0.7);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px rgba(0, 240, 255, 0.2);
}

button {
  font-family: var(--font-display);
  cursor: pointer;
  border: none;
  border-radius: 10px;
  font-weight: 700;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-emerald) 0%, var(--accent-cyan) 100%);
  color: #031018;
  padding: 0.85rem 1.25rem;
  font-size: 0.95rem;
  box-shadow: 0 4px 16px rgba(0, 240, 255, 0.3);
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(0, 240, 255, 0.4);
}

.btn-secondary {
  background: rgba(18, 34, 52, 0.8);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  padding: 0.65rem 1rem;
}
.btn-secondary:hover {
  background: rgba(28, 48, 72, 0.9);
  border-color: var(--accent-cyan);
}

.btn-danger-outline {
  background: transparent;
  border: 1px solid rgba(255, 51, 102, 0.4);
  color: var(--accent-red);
  padding: 0.45rem 0.9rem;
  font-size: 0.85rem;
}
.btn-danger-outline:hover {
  background: var(--accent-red);
  color: white;
}

/* Topbar Header */
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.85rem 1.5rem;
  margin-bottom: 1.5rem;
  gap: 1rem;
  flex-wrap: wrap;
}

.brand-group {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.brand {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.05em;
}
.brand .tag {
  font-size: 0.65rem;
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  background: rgba(0, 240, 255, 0.15);
  color: var(--accent-cyan);
  border: 1px solid rgba(0, 240, 255, 0.3);
  margin-left: 0.4rem;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.8rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
}
.status-pill-safe {
  background: rgba(0, 229, 163, 0.12);
  color: var(--accent-emerald);
  border: 1px solid rgba(0, 229, 163, 0.3);
}
.status-pill-warning {
  background: rgba(255, 183, 3, 0.15);
  color: var(--accent-amber);
  border: 1px solid rgba(255, 183, 3, 0.35);
}
.status-pill-danger {
  background: rgba(255, 51, 102, 0.15);
  color: var(--accent-red);
  border: 1px solid rgba(255, 51, 102, 0.35);
  animation: pulseGlow 1.5s infinite;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 8px currentColor;
}

.nav-actions {
  display: flex;
  gap: 0.4rem;
  background: rgba(4, 9, 15, 0.6);
  padding: 0.35rem;
  border-radius: 12px;
  border: 1px solid var(--border-subtle);
}

.nav-btn {
  background: transparent;
  color: var(--text-muted);
  padding: 0.55rem 1rem;
  font-size: 0.85rem;
  border-radius: 8px;
}
.nav-btn:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.05);
}
.nav-btn.active {
  background: linear-gradient(135deg, rgba(0, 229, 163, 0.25) 0%, rgba(0, 240, 255, 0.25) 100%);
  color: #fff;
  border: 1px solid var(--border-glow);
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.2);
}

.user-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.user-badge {
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.4rem 0.8rem;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-muted);
  border: 1px solid var(--border-subtle);
}

.icon-btn {
  background: rgba(18, 34, 52, 0.8);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  padding: 0.45rem 0.85rem;
  font-size: 0.8rem;
}
.icon-btn.muted-sound {
  color: var(--text-dim);
  border-color: rgba(255, 255, 255, 0.1);
}

/* Overview Layout & Cards */
.grid-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  border-left: 4px solid var(--accent-cyan);
}
.stat-card.safe { border-left-color: var(--accent-emerald); }
.stat-card.warning { border-left-color: var(--accent-amber); }
.stat-card.danger { border-left-color: var(--accent-red); }

.stat-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.stat-value {
  font-size: 2rem;
  font-weight: 800;
  color: #fff;
  font-family: var(--font-mono);
}
.stat-sub {
  font-size: 0.75rem;
  color: var(--text-dim);
}

/* Live Detection Layout */
.detection-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 1.25rem;
}
@media (max-width: 1024px) {
  .detection-grid {
    grid-template-columns: 1fr;
  }
}

.viewport-container {
  position: relative;
  border-radius: 14px;
  overflow: hidden;
  background: #02060a;
  min-height: 480px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-subtle);
}

.live-stream-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.canvas-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: auto;
}

.viewport-hud {
  position: absolute;
  top: 1rem;
  left: 1rem;
  right: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  pointer-events: none;
}
.viewport-hud > * {
  pointer-events: auto;
}

.stream-status-badge {
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  padding: 0.35rem 0.75rem;
  border-radius: 8px;
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--accent-emerald);
  border: 1px solid rgba(0, 229, 163, 0.3);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.mode-selector {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  background: rgba(0, 0, 0, 0.75);
  padding: 0.35rem;
  border-radius: 10px;
  border: 1px solid var(--border-subtle);
}
.mode-btn {
  background: transparent;
  color: var(--text-muted);
  padding: 0.4rem 0.8rem;
  font-size: 0.78rem;
  border-radius: 6px;
}
.mode-btn.active {
  background: var(--accent-cyan);
  color: #020d14;
}

/* Side Controls Card */
.side-card {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.side-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Incidents Table & Filter */
.table-container {
  width: 100%;
  overflow-x: auto;
  border-radius: 12px;
  margin-top: 1rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9rem;
}

th {
  background: rgba(4, 9, 15, 0.8);
  color: var(--text-muted);
  font-weight: 600;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-subtle);
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

td {
  padding: 0.9rem 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  color: var(--text-main);
}

tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

.badge {
  display: inline-block;
  padding: 0.25rem 0.65rem;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}
.badge-open { background: rgba(255, 51, 102, 0.18); color: var(--accent-red); border: 1px solid rgba(255, 51, 102, 0.4); }
.badge-progress { background: rgba(255, 183, 3, 0.18); color: var(--accent-amber); border: 1px solid rgba(255, 183, 3, 0.4); }
.badge-resolved { background: rgba(0, 229, 163, 0.18); color: var(--accent-emerald); border: 1px solid rgba(0, 229, 163, 0.4); }

/* Copilot Tab Styles */
.copilot-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 1.25rem;
}
@media (max-width: 900px) {
  .copilot-grid {
    grid-template-columns: 1fr;
  }
}

.chat-history {
  height: 440px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  padding: 1rem;
  background: rgba(3, 8, 14, 0.7);
  border-radius: 12px;
  border: 1px solid var(--border-subtle);
}

.chat-bubble {
  max-width: 85%;
  padding: 0.85rem 1.15rem;
  border-radius: 14px;
  font-size: 0.92rem;
  line-height: 1.5;
}
.chat-bubble-agent {
  background: rgba(18, 36, 56, 0.85);
  border: 1px solid rgba(0, 240, 255, 0.25);
  align-self: flex-start;
  color: #e4f2ff;
}
.chat-bubble-user {
  background: linear-gradient(135deg, rgba(0, 229, 163, 0.3) 0%, rgba(0, 240, 255, 0.3) 100%);
  border: 1px solid var(--border-glow);
  align-self: flex-end;
  color: #fff;
}

/* Modal */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(2, 6, 10, 0.85);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}
.modal-content {
  max-width: 720px;
  width: 90%;
  max-height: 85vh;
  overflow-y: auto;
  padding: 1.5rem;
}
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}
.close-btn {
  background: transparent;
  color: var(--text-muted);
  font-size: 1.5rem;
  padding: 0.2rem 0.5rem;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  padding: 0.85rem 1.4rem;
  border-radius: 12px;
  font-weight: 600;
  font-size: 0.9rem;
  z-index: 10000;
  animation: slideUp 0.3s ease-out;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
}
.toast-ok {
  background: #022b20;
  border: 1px solid var(--accent-emerald);
  color: #a7f3d0;
}
.toast-error {
  background: #3b0714;
  border: 1px solid var(--accent-red);
  color: #fecdd3;
}

.hidden { display: none !important; }

/* Keyframes */
@keyframes fadeInRise {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 8px rgba(255, 51, 102, 0.4); }
  50% { box-shadow: 0 0 20px rgba(255, 51, 102, 0.8); }
}

/* Detection View & HUD Layout */
.detection-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 1.5rem;
  align-items: start;
}

.viewport-container {
  position: relative;
  width: 100%;
  height: 520px;
  background: #000;
  border-radius: 14px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.live-stream-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.canvas-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: auto;
}

.viewport-hud {
  position: absolute;
  top: 1rem;
  left: 1rem;
  right: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  pointer-events: none;
  z-index: 5;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.stream-status-badge {
  background: rgba(3, 7, 18, 0.85);
  border: 1px solid var(--border-subtle);
  padding: 4px 10px;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 6px;
  pointer-events: auto;
  backdrop-filter: blur(8px);
}

.mode-selector {
  display: flex;
  gap: 0.35rem;
  pointer-events: auto;
  background: rgba(3, 7, 18, 0.85);
  padding: 4px;
  border-radius: 8px;
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(8px);
}

.mode-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
}

.mode-btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.05);
}

.mode-btn.active {
  background: var(--accent-cyan);
  color: #030712;
  font-weight: 700;
  box-shadow: 0 0 10px rgba(0, 240, 255, 0.4);
}

.side-card {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* ==========================================================================
   SMART DEVICE & MOBILE RESPONSIVE OPTIMIZATIONS (Smartphones / Tablets)
   ========================================================================== */

.mobile-menu-btn {
  display: none;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: #fff;
  padding: 8px 10px;
  border-radius: 8px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  touch-action: manipulation;
}

.sidebar-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(2, 6, 10, 0.7);
  backdrop-filter: blur(6px);
  z-index: 99;
}

/* Tablet Breakpoint (<= 1024px) */
@media (max-width: 1024px) {
  .sidebar {
    position: fixed;
    top: 0;
    left: -280px;
    height: 100vh;
    width: 260px;
    z-index: 100;
    transition: left 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 10px 0 30px rgba(0, 0, 0, 0.8);
  }

  .sidebar.sidebar-mobile-open {
    left: 0;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .top-header {
    padding: 0 1rem;
  }

  .search-bar {
    width: 220px;
  }

  .main-wrapper {
    width: 100vw;
  }

  .view-canvas {
    padding: 1rem;
  }

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

  .kpi-grid {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  }
}

/* Smartphone & Small Display Breakpoint (<= 640px) */
@media (max-width: 640px) {
  html, body {
    overflow-x: hidden;
    touch-action: manipulation;
  }

  .top-header {
    height: 56px;
    padding: 0 0.75rem;
  }

  .search-bar {
    display: none;
  }

  .header-right {
    gap: 0.4rem;
  }

  .header-right .icon-btn span {
    display: none;
  }

  .view-canvas {
    padding: 0.75rem;
  }

  .kpi-grid {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .viewport-container {
    height: 280px;
  }

  .login-panel {
    padding: 1.5rem 1.25rem;
  }

  .login-panel h1 {
    font-size: 1.35rem;
  }

  /* Reflow 2x2 CCTV Matrix to 1 column on small phones */
  div[style*="grid-template-columns: 1.6fr 1fr"] {
    grid-template-columns: 1fr !important;
  }

  div[style*="grid-template-columns: 1fr 1fr; grid-template-rows: 240px 240px"] {
    grid-template-columns: 1fr !important;
    grid-template-rows: auto !important;
  }

  div[style*="grid-template-columns: 1fr 340px"] {
    grid-template-columns: 1fr !important;
  }

  .mode-selector {
    flex-wrap: wrap;
  }

  .mode-btn {
    padding: 4px 8px;
    font-size: 0.7rem;
  }

  table th, table td {
    padding: 0.5rem;
    font-size: 0.75rem;
  }

  .modal-content {
    width: 95%;
    padding: 1rem;
  }
}

/* Fit to Screen Viewport Rules */
.detection-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 1.25rem;
  align-items: stretch;
  min-height: calc(100vh - 160px);
}

.viewport-container {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 520px;
  max-height: calc(100vh - 160px);
  background: #000;
  border-radius: 16px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-glow);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.8);
}

.live-stream-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.canvas-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: auto;
}

.viewport-hud {
  position: absolute;
  top: 16px;
  left: 16px;
  right: 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  pointer-events: none;
  z-index: 10;
}

.mode-selector {
  display: flex;
  gap: 0.35rem;
  background: rgba(3, 7, 18, 0.85);
  padding: 4px 6px;
  border-radius: 8px;
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(12px);
  pointer-events: auto;
}

.mode-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-muted);
  font-size: 0.75rem;
  font-family: var(--font-mono);
  padding: 4px 10px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
}

.mode-btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.05);
}

.mode-btn.active {
  background: var(--accent-cyan);
  color: #030712;
  font-weight: 700;
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.4);
}

.side-card {
  height: calc(100vh - 160px);
  max-height: calc(100vh - 160px);
  overflow-y: auto;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

@media (max-width: 1024px) {
  .detection-grid {
    grid-template-columns: 1fr;
    height: auto;
  }
  .side-card {
    height: auto;
    max-height: none;
  }
}