:root, [data-theme="dark"] {
  --bg-primary: #0a0a0f;
  --bg-card: rgba(15, 15, 25, 0.85);
  --bg-card-hover: rgba(20, 20, 35, 0.9);
  --neon-red: #ff3333;
  --neon-red-dim: #cc0000;
  --neon-red-glow: rgba(255, 51, 51, 0.3);
  --text-primary: #e0e0e0;
  --text-secondary: rgba(224, 224, 224, 0.6);
  --text-muted: rgba(224, 224, 224, 0.35);
  --border-color: rgba(255, 51, 51, 0.15);
  --border-glow: rgba(255, 51, 51, 0.3);
  --success: #00ff88;
  --success-glow: rgba(0, 255, 136, 0.3);
  --warning: #ffcc00;
  --pending: rgba(224, 224, 224, 0.2);
  --input-bg: rgba(10, 10, 15, 0.8);
  --chat-customer-bg: linear-gradient(135deg, var(--neon-red), var(--neon-red-dim));
  --chat-customer-text: white;
  --chat-tech-bg: var(--bg-card);
  --chat-tech-border: var(--border-color);
  --scrollbar-thumb: rgba(255, 51, 51, 0.3);
  --scrollbar-hover: rgba(255, 51, 51, 0.5);
}

[data-theme="light"] {
  --bg-primary: #f5f5f7;
  --bg-card: rgba(255, 255, 255, 0.9);
  --bg-card-hover: rgba(255, 255, 255, 0.95);
  --neon-red: #cc0000;
  --neon-red-dim: #990000;
  --neon-red-glow: rgba(204, 0, 0, 0.15);
  --text-primary: #1a1a2e;
  --text-secondary: rgba(26, 26, 46, 0.65);
  --text-muted: rgba(26, 26, 46, 0.4);
  --border-color: rgba(0, 0, 0, 0.1);
  --border-glow: rgba(204, 0, 0, 0.2);
  --success: #059669;
  --success-glow: rgba(5, 150, 105, 0.2);
  --warning: #d97706;
  --pending: rgba(0, 0, 0, 0.1);
  --input-bg: rgba(255, 255, 255, 0.9);
  --chat-customer-bg: linear-gradient(135deg, #cc0000, #990000);
  --chat-customer-text: white;
  --chat-tech-bg: #f0f0f2;
  --chat-tech-border: rgba(0, 0, 0, 0.08);
  --scrollbar-thumb: rgba(0, 0, 0, 0.15);
  --scrollbar-hover: rgba(0, 0, 0, 0.25);
}

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

body {
  font-family: 'Rajdhani', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Orbitron', sans-serif;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.card {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 24px;
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
}
.card:hover {
  border-color: var(--border-glow);
  box-shadow: 0 8px 32px var(--neon-red-glow), 0 0 60px rgba(255, 51, 51, 0.05);
  transform: translateY(-2px);
}

.btn-primary {
  font-family: 'Orbitron', sans-serif;
  background: linear-gradient(135deg, var(--neon-red), var(--neon-red-dim));
  color: white;
  border: none;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px var(--neon-red-glow);
}
.btn-primary:hover {
  box-shadow: 0 6px 25px rgba(255, 51, 51, 0.5);
  transform: translateY(-1px);
}
.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.input-field {
  font-family: 'Rajdhani', sans-serif;
  background: var(--input-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 12px 16px;
  color: var(--text-primary);
  font-size: 16px;
  font-weight: 500;
  width: 100%;
  transition: border-color 0.3s, box-shadow 0.3s;
}
.input-field:focus {
  outline: none;
  border-color: var(--neon-red);
  box-shadow: 0 0 15px var(--neon-red-glow);
}
.input-field.error {
  border-color: #ff3333;
  box-shadow: 0 0 15px rgba(255, 51, 51, 0.4);
}
.input-label {
  font-family: 'Orbitron', sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 6px;
  display: block;
}

.progress-track {
  display: flex;
  align-items: center;
  gap: 0;
  width: 100%;
  padding: 16px 0;
  overflow: hidden;
}
.progress-step {
  flex: 1;
  text-align: center;
  position: relative;
  overflow: visible;
}
.progress-dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  margin: 0 auto 8px;
  background: var(--pending);
  transition: all 0.5s ease;
}
.progress-dot.active {
  background: var(--neon-red);
  box-shadow: 0 0 12px var(--neon-red-glow), 0 0 24px rgba(255, 51, 51, 0.2);
  animation: pulse-dot 2s ease-in-out infinite;
}
.progress-dot.complete {
  background: var(--success);
  box-shadow: 0 0 8px var(--success-glow);
}
.progress-line {
  position: absolute;
  top: 8px;
  right: 50%;
  width: 100%;
  height: 2px;
  background: var(--pending);
  z-index: -1;
}
.progress-line.complete {
  background: var(--success);
  box-shadow: 0 0 6px var(--success-glow);
}
.progress-label {
  font-family: 'Rajdhani', sans-serif;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}
.progress-label.active { color: var(--neon-red); }
.progress-label.complete { color: var(--success); }

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}
.status-dot.online {
  background: var(--success);
  box-shadow: 0 0 8px var(--success-glow);
  animation: pulse-dot 2s ease-in-out infinite;
}
.status-dot.offline { background: var(--text-muted); }

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(1.15); }
}

.chat-container {
  display: flex;
  flex-direction: column;
  height: 400px;
  max-height: 60vh;
}
.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.chat-bubble {
  max-width: 80%;
  padding: 10px 14px;
  border-radius: 12px;
  font-size: 14px;
  line-height: 1.5;
}
.chat-bubble.customer {
  align-self: flex-end;
  background: var(--chat-customer-bg);
  color: var(--chat-customer-text);
  border-bottom-right-radius: 4px;
}
.chat-bubble.tech {
  align-self: flex-start;
  background: var(--chat-tech-bg);
  border: 1px solid var(--chat-tech-border);
  color: var(--text-primary);
  border-bottom-left-radius: 4px;
}
.chat-input-row {
  display: flex;
  gap: 8px;
  padding: 12px;
  border-top: 1px solid var(--border-color);
}

@media (max-width: 768px) {
  .card { padding: 16px; }
  .progress-label { font-size: 9px; }
  .chat-container { height: 300px; }
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--scrollbar-hover); }

/* Theme toggle */
.theme-toggle {
  width: 44px;
  height: 24px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  background: var(--input-bg);
  cursor: pointer;
  position: relative;
  transition: background 0.3s, border-color 0.3s;
  flex-shrink: 0;
}
.theme-toggle::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--neon-red);
  transition: transform 0.3s;
}
[data-theme="light"] .theme-toggle::after {
  transform: translateX(20px);
  background: #cc0000;
}