/* AquaSentinel AI - Cyber-Premium Design System v4.0 */
:root {
  /* Dark Theme - Deep Ocean Intelligence */
  --bg-color: #02040a;
  --surface-color: #0b1120;
  --card-bg: rgba(15, 23, 42, 0.7);
  --border-color: rgba(0, 243, 255, 0.15);
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --accent-color: #00f3ff;
  --accent-glow: rgba(0, 243, 255, 0.4);
  --accent-gradient: linear-gradient(135deg, #00f3ff 0%, #0077ff 100%);
  --ocean-gradient: linear-gradient(180deg, #02040a 0%, #0b1120 100%);
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --glass-blur: blur(16px);
  --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-premium: 0 20px 40px rgba(0, 0, 0, 0.4);
}

[data-theme="light"] {
  --bg-color: #f8fafc;
  --surface-color: #ffffff;
  --card-bg: rgba(255, 255, 255, 0.8);
  --border-color: rgba(0, 119, 255, 0.1);
  --text-primary: #0f172a;
  --text-secondary: #64748b;
  --accent-color: #0077ff;
  --accent-glow: rgba(0, 119, 255, 0.2);
  --accent-gradient: linear-gradient(135deg, #0077ff 0%, #00f3ff 100%);
  --shadow-premium: 0 10px 30px rgba(0, 119, 255, 0.05);
}

html {
  scroll-behavior: smooth;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Outfit', 'Inter', system-ui, sans-serif;
}

body {
  background-color: var(--bg-color);
  background-image: var(--ocean-gradient);
  color: var(--text-primary);
  line-height: 1.6;
  transition: var(--transition);
  overflow-x: hidden;
  min-height: 100vh;
}

/* Typography Hub */
h1, h2, h3, h4 {
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.text-gradient {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

/* Premium Layout Components */
.container {
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 2.5rem;
}

.glass-card {
  background: var(--card-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-color);
  border-radius: 28px;
  padding: 2.5rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-premium);
}

.glass-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
  opacity: 0.3;
}

.glass-card:hover {
  transform: translateY(-8px) scale(1.01);
  border-color: var(--accent-color);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5), 0 0 20px var(--accent-glow);
}

/* Buttons Evolution */
.btn {
  padding: 0.9rem 2.2rem;
  border-radius: 100px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.7rem;
  text-decoration: none;
  font-size: 0.9rem;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.btn-primary {
  background: var(--accent-gradient);
  color: #02040a;
  box-shadow: 0 10px 25px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 35px var(--accent-glow);
  filter: brightness(1.1);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}

.btn-outline:hover {
  background: rgba(0, 243, 255, 0.05);
  border-color: var(--accent-color);
  transform: translateY(-3px);
}

/* Navigation System */
.nav-container {
  position: fixed;
  top: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  width: 92%;
  max-width: 1200px;
  z-index: 1000;
}

.navbar {
  background: rgba(11, 17, 32, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-color);
  border-radius: 100px;
  padding: 0.8rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.nav-links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  transition: var(--transition);
  position: relative;
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: -4px; left: 0; width: 0; height: 2px;
  background: var(--accent-gradient);
  transition: var(--transition);
}

.nav-links a:hover { color: var(--text-primary); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }

/* Interface Elements */
.bg-grid {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image: 
    radial-gradient(circle at 50% 50%, rgba(0, 243, 255, 0.05) 0%, transparent 70%),
    linear-gradient(var(--border-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--border-color) 1px, transparent 1px);
  background-size: 100% 100%, 60px 60px, 60px 60px;
  pointer-events: none;
  z-index: -1;
  opacity: 0.4;
}

.hologram::after {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
  animation: scanline 8s cubic-bezier(0.4, 0, 0.2, 1) infinite;
  box-shadow: 0 0 15px var(--accent-color);
}

@keyframes scanline {
  0% { transform: translateY(-100px); opacity: 0; }
  5% { opacity: 1; }
  95% { opacity: 1; }
  100% { transform: translateY(600px); opacity: 0; }
}

.ai-trigger {
  position: fixed;
  bottom: 2.5rem;
  right: 2.5rem;
  width: 70px;
  height: 70px;
  background: var(--accent-gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 0 40px var(--accent-glow);
  z-index: 1000;
  transition: var(--transition);
}

.ai-trigger:hover {
  transform: scale(1.1) rotate(10deg);
  box-shadow: 0 0 60px var(--accent-glow);
}

/* Data Tags */
.status-tag {
  padding: 0.3rem 0.8rem;
  border-radius: 6px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border-color);
}

.status-tag.critical { color: var(--danger); border-color: var(--danger); background: rgba(239, 68, 68, 0.1); }
.status-tag.success { color: var(--success); border-color: var(--success); background: rgba(16, 185, 129, 0.1); }

@media (max-width: 992px) {
  .nav-links { display: none; }
  .container { padding: 0 1.5rem; }
}

/* --- Premium Chat UI Redesign --- */

.copilot-widget {
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.6), 0 0 40px var(--accent-glow) !important;
  border: 1px solid rgba(0, 243, 255, 0.2) !important;
  overflow: hidden;
  transition: var(--transition);
}

.copilot-widget.active {
  display: flex !important;
}

#chat-box {
  padding: 1.5rem !important;
  gap: 1.5rem;
  display: flex;
  flex-direction: column;
  scroll-behavior: smooth;
}

.chat-message {
  max-width: 88% !important;
  position: relative;
  animation: messageAppear 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  opacity: 0;
  transform: translateY(10px);
}

@keyframes messageAppear {
  to { opacity: 1; transform: translateY(0); }
}

.chat-message.user {
  background: var(--accent-gradient) !important;
  color: #02040a !important;
  border-radius: 20px 20px 4px 20px !important;
  padding: 1rem 1.4rem !important;
  font-weight: 600 !important;
  align-self: flex-end !important;
  box-shadow: 0 10px 20px rgba(0, 243, 255, 0.2) !important;
}

.chat-message.ai {
  background: rgba(15, 23, 42, 0.8) !important;
  backdrop-filter: blur(12px) !important;
  border: 1px solid rgba(0, 243, 255, 0.1) !important;
  border-radius: 20px 20px 20px 4px !important;
  padding: 1.5rem !important;
  color: var(--text-primary) !important;
  align-self: flex-start !important;
  border-left: 4px solid var(--accent-color) !important;
}

/* AI Message Typography & Structure */
.ai-greeting { font-weight: 700; font-size: 1.1rem; margin-bottom: 0.8rem; display: block; color: var(--accent-color); }
.ai-summary { font-weight: 500; font-size: 0.95rem; line-height: 1.7; margin-bottom: 1.2rem; display: block; }

.ai-section {
  background: rgba(255, 255, 255, 0.03);
  border-radius: 12px;
  padding: 1rem;
  margin-top: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.ai-section-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-secondary);
  margin-bottom: 0.6rem;
}

.ai-list { list-style: none; padding: 0; margin: 0; }
.ai-list-item {
  position: relative;
  padding-left: 1.2rem;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
}
.ai-list-item::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--accent-color);
  font-weight: bold;
}

.ai-action {
  margin-top: 1.2rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.85rem;
  color: var(--accent-color);
  font-weight: 700;
}

/* Suggestion Chips */
.suggestion-container {
  display: flex;
  gap: 0.6rem;
  padding: 0 1.5rem 1rem;
  overflow-x: auto;
  scrollbar-width: none;
  scroll-behavior: smooth;
}
.suggestion-container::-webkit-scrollbar { display: none; }

.suggestion-chip {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  padding: 0.5rem 1rem;
  border-radius: 50px;
  font-size: 0.75rem;
  white-space: nowrap;
  cursor: pointer;
  transition: var(--transition);
  color: var(--text-secondary);
}
.suggestion-chip:hover {
  background: rgba(0, 243, 255, 0.1);
  border-color: var(--accent-color);
  color: var(--accent-color);
  transform: translateY(-2px);
}

/* Typing Indicator */
.typing-indicator {
  display: flex;
  gap: 4px;
  padding: 1rem 1.5rem;
  align-items: center;
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 600;
}
.typing-dot {
  width: 6px;
  height: 6px;
  background: var(--accent-color);
  border-radius: 50%;
  animation: typingBounce 1.4s infinite ease-in-out;
}
.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingBounce {
  0%, 80%, 100% { transform: scale(0); opacity: 0.3; }
  40% { transform: scale(1); opacity: 1; }
}

/* Scrollbar styling for Chat */
#chat-box::-webkit-scrollbar { width: 4px; }
#chat-box::-webkit-scrollbar-track { background: transparent; }
#chat-box::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 10px; }
/* Animations Hub */
@keyframes pulse {
    0% { transform: scale(1); opacity: 0.8; }
    50% { transform: scale(1.5); opacity: 0.3; }
    100% { transform: scale(2); opacity: 0; }
}
.pulse-animation {
    animation: pulse 2s infinite ease-out;
}

/* Status & Indicators */
.status-tag {
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
}
.status-tag.critical {
    background: rgba(239, 68, 68, 0.1);
    border-color: var(--danger);
    color: var(--danger);
}
.status-tag.active {
    background: rgba(16, 185, 129, 0.1);
    border-color: var(--success);
    color: var(--success);
}