/* =========================================================================
   CLASSIC ANTIGRAVITY - PREMIUM GLOBAL UI CSS
   ========================================================================= */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

:root {
  /* Vibrant & Harmonic Color Palette (Binance Theme) */
  --primary: #f0b90b;
  --primary-gradient: linear-gradient(135deg, #f0b90b, #FCD535);
  --secondary: #FCD535;
  --secondary-gradient: linear-gradient(135deg, #f0b90b, #FCD535);
  --success: #00d1b2;
  --success-gradient: linear-gradient(135deg, #22c55e, #10b981);
  --warning: #ffaa00;
  --danger: #ff4d4d;
  --danger-gradient: linear-gradient(135deg, #ff4d4d, #f43f5e);
  
  --bg-dark: #0b0e11;
  --bg-darker: #000000;
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-hover: rgba(255, 255, 255, 0.12);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  
  --text-main: #ffffff;
  --text-muted: rgba(255, 255, 255, 0.6);
  --text-accent: #f0b90b;
  
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 40px;
  --radius-full: 9999px;
  
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  --transition-slow: 0.5s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Poppins', sans-serif;
}

body {
  background: var(--bg-dark);
  color: var(--text-main);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  letter-spacing: 0.5px;
}

p {
  line-height: 1.6;
  color: var(--text-muted);
}

a {
  color: var(--text-accent);
  text-decoration: none;
  transition: var(--transition-fast);
}

a:hover {
  text-shadow: 0 0 8px rgba(127, 223, 255, 0.5);
  transform: translateY(-1px);
}

/* Premium Buttons */
.btn-premium {
  width: 100%;
  padding: 16px 24px;
  border-radius: var(--radius-full);
  border: none;
  font-size: 16px;
  font-weight: 600;
  color: white;
  cursor: pointer;
  background: var(--primary-gradient);
  box-shadow: 0 10px 25px rgba(72, 198, 239, 0.3);
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.btn-premium::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(to right, rgba(255,255,255,0) 0%, rgba(255,255,255,0.3) 50%, rgba(255,255,255,0) 100%);
  transform: skewX(-25deg);
  transition: 0.5s;
}

.btn-premium:hover:not(:disabled) {
  transform: translateY(-3px);
  box-shadow: 0 15px 35px rgba(72, 198, 239, 0.5);
}

.btn-premium:hover:not(:disabled)::after {
  left: 150%;
}

.btn-premium:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
}

/* Premium Input Forms */
.input-group {
  margin-bottom: 24px;
  position: relative;
}

.input-box {
  background: var(--glass-bg);
  padding: 16px 20px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  transition: var(--transition-normal);
  border: 1px solid transparent;
  gap: 12px;
}

.input-box:focus-within {
  border-color: rgba(72, 198, 239, 0.5);
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 0 15px rgba(72, 198, 239, 0.2);
}

.input-box:hover {
  background: var(--glass-hover);
}

.input-box i {
  color: var(--text-accent);
  font-size: 1.2rem;
  width: 24px;
  display: flex;
  justify-content: center;
  opacity: 0.8;
  transition: var(--transition-fast);
}

.input-box:focus-within i {
  opacity: 1;
  transform: scale(1.1);
}

.input-box input, .input-box select {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  color: var(--text-main);
  font-size: 15px;
  width: 100%;
}

.input-box input::placeholder {
  color: var(--text-muted);
}

/* Error Messages & Tooltips */
.error-message {
  position: absolute;
  top: -40px;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: rgba(0, 0, 0, 0.9);
  color: white;
  padding: 8px 16px;
  font-size: 12px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  opacity: 0;
  pointer-events: none;
  transition: var(--transition-normal);
  white-space: nowrap;
  border-left: 4px solid var(--danger);
  box-shadow: 0 5px 15px rgba(0,0,0,0.3);
  z-index: 10;
}

.error-message.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* Floating Alerts (Toasts) */
.floating-message {
  position: fixed;
  top: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(-150px);
  background: var(--bg-darker);
  color: white;
  padding: 16px 32px;
  border-radius: var(--radius-full);
  font-size: 15px;
  font-weight: 500;
  z-index: 9999;
  transition: var(--transition-slow);
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
  border: 1px solid var(--glass-border);
  border-left: 4px solid var(--primary);
  display: flex;
  align-items: center;
  gap: 12px;
}

.floating-message.success {
  border-left-color: var(--success);
}

.floating-message.error {
  border-left-color: var(--danger);
}

.floating-message.warning {
  border-left-color: var(--warning);
}

.floating-message.show {
  transform: translateX(-50%) translateY(0);
}

/* Loading Spinner Overlays */
.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(2, 18, 28, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: none;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  z-index: 9999;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.loading-overlay.active {
  display: flex;
  opacity: 1;
}

.spinner-premium {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  border: 4px solid rgba(72, 198, 239, 0.1);
  border-top-color: var(--primary);
  border-bottom-color: var(--text-accent);
  animation: spin-premium 1s cubic-bezier(0.68, -0.55, 0.265, 1.55) infinite;
}

@keyframes spin-premium {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.loading-text {
  color: var(--text-accent);
  margin-top: 24px;
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 1px;
  animation: pulse-text 2s ease-in-out infinite;
}

@keyframes pulse-text {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; text-shadow: 0 0 10px rgba(127, 223, 255, 0.5); }
}

/* Animations */
.animate-fade-in {
  animation: fadeIn var(--transition-slow) forwards;
}

.animate-slide-up {
  animation: slideUp var(--transition-slow) forwards;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Scrollbar customization */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-dark); 
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.2); 
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.4); 
}