:root {
  --bg-primary: #0a0d14;
  --bg-secondary: #121824;
  --bg-card: #182030;
  --accent: #3b82f6;
  --accent-glow: rgba(59, 130, 246, 0.4);
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --border: #243048;
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: var(--font-family);
}

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header & Nav */
header {
  background-color: rgba(18, 24, 36, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
  padding: 0.85rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-main);
}

.logo-badge {
  background: linear-gradient(135deg, #2563eb, #3b82f6);
  color: white;
  font-weight: 800;
  font-size: 1.1rem;
  padding: 0.35rem 0.65rem;
  border-radius: 8px;
  box-shadow: 0 0 15px var(--accent-glow);
}

.logo-title {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.logo-subtitle {
  color: var(--accent);
  font-size: 0.8rem;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--text-main);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.6rem 1.25rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, #2563eb, #3b82f6);
  color: white;
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #1d4ed8, #2563eb);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.45);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-main);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: #1f2a3f;
  border-color: #3b82f6;
}

.btn-danger {
  background: rgba(239, 68, 68, 0.15);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
  background: #ef4444;
  color: white;
}

/* Landing Page Hero */
.hero {
  padding: 5rem 2rem 4rem;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.3);
  color: #60a5fa;
  padding: 0.35rem 1rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: 3rem;
  line-height: 1.2;
  font-weight: 800;
  margin-bottom: 1.25rem;
  background: linear-gradient(180deg, #ffffff, #94a3b8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 1.2rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 2.5rem;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
}

/* Feature Cards Grid */
.features-section {
  max-width: 1200px;
  margin: 0 auto 5rem;
  padding: 0 2rem;
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title h2 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.section-title p {
  color: var(--text-muted);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.feature-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 2rem;
  transition: transform 0.2s, border-color 0.2s;
}

.feature-card:hover {
  transform: translateY(-3px);
  border-color: #3b82f6;
}

.feature-icon {
  width: 50px;
  height: 50px;
  background: rgba(59, 130, 246, 0.15);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: #60a5fa;
  margin-bottom: 1.25rem;
}

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.feature-card p {
  color: var(--text-muted);
  line-height: 1.5;
  font-size: 0.95rem;
}

/* Dashboard Styles */
.dashboard-container {
  max-width: 1440px;
  margin: 2rem auto;
  padding: 0 2rem;
  flex: 1;
}

.dashboard-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  background: var(--bg-secondary);
  padding: 1.25rem 2rem;
  border-radius: 14px;
  border: 1px solid var(--border);
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.8rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
}

.status-online {
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.status-offline {
  background: rgba(239, 68, 68, 0.15);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: currentColor;
}

/* CCTV PC Grid */
.pc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(420px, 1fr));
  gap: 1.5rem;
}

.pc-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s;
}

.pc-card.active-control {
  border-color: #3b82f6;
  box-shadow: 0 0 20px rgba(59, 130, 246, 0.25);
}

.pc-card-header {
  padding: 0.9rem 1.25rem;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.pc-title-wrap {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.pc-name-text {
  font-weight: 700;
  font-size: 1.05rem;
}

.btn-icon {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem;
  font-size: 0.9rem;
  transition: color 0.2s;
}

.btn-icon:hover {
  color: var(--text-main);
}

/* Video Stream Box with Interactive Click Overlay */
.video-wrapper {
  position: relative;
  background: #000;
  width: 100%;
  aspect-ratio: 16 / 9;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  cursor: crosshair;
}

.video-wrapper video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  pointer-events: none;
}

.stream-placeholder {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.click-indicator {
  position: absolute;
  width: 24px;
  height: 24px;
  border: 2px solid #3b82f6;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  animation: ripple 0.4s ease-out forwards;
}

@keyframes ripple {
  0% { transform: translate(-50%, -50%) scale(0.5); opacity: 1; }
  100% { transform: translate(-50%, -50%) scale(2); opacity: 0; }
}

.pc-card-footer {
  padding: 0.85rem 1.25rem;
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Modals */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(5px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 2rem;
  width: 100%;
  max-width: 440px;
}

.modal h3 {
  margin-bottom: 1.25rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-main);
  font-size: 0.95rem;
}

.form-control:focus {
  outline: none;
  border-color: #3b82f6;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}

/* Remote Control Bar under PC Video */
.pc-control-bar {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  padding: 0.75rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.control-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.wasd-cluster {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
}

.wasd-row {
  display: flex;
  gap: 3px;
}

.btn-ctrl {
  background: #1e293b;
  color: var(--text-main);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-weight: 700;
  font-size: 0.85rem;
  padding: 0.4rem 0.75rem;
  cursor: pointer;
  user-select: none;
  transition: all 0.1s;
  min-width: 36px;
  text-align: center;
}

.btn-ctrl:active, .btn-ctrl.active {
  background: #3b82f6;
  border-color: #60a5fa;
  transform: scale(0.95);
  box-shadow: 0 0 10px rgba(59, 130, 246, 0.5);
}

.btn-town {
  background: rgba(239, 68, 68, 0.15);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.35);
  font-weight: 700;
  padding: 0.45rem 1rem;
}

.btn-town:hover {
  background: #ef4444;
  color: white;
}

.skill-bar {
  display: flex;
  gap: 4px;
}

.skill-btn {
  background: #182234;
  border: 1px solid #2d3b55;
  color: #93c5fd;
  font-weight: 700;
  border-radius: 6px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  user-select: none;
  font-size: 0.85rem;
}

.skill-btn:active {
  background: #2563eb;
  color: white;
  transform: scale(0.92);
}