@import url('https://fonts.googleapis.com/css2?family=Inter:wght@100..900&display=swap');

:root {
  /* Modern Color Palette */
  --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --success-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  --warning-gradient: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
  --dark-bg: #0f0f23;
  --card-bg: rgba(255, 255, 255, 0.1);
  --card-border: rgba(255, 255, 255, 0.2);
  --text-primary: #ffffff;
  --text-secondary: #a0a0a0;
  --accent-color: #667eea;
  --success-color: #4facfe;
  --error-color: #f5576c;
  --warning-color: #f093fb;
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1);
  --glow: 0 0 20px rgba(102, 126, 234, 0.3);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--dark-bg);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  position: relative;
}

/* Animated Background */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 20% 80%, rgba(120, 119, 198, 0.3) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(255, 119, 198, 0.3) 0%, transparent 50%),
    radial-gradient(circle at 40% 40%, rgba(120, 219, 255, 0.2) 0%, transparent 50%);
  z-index: -1;
  animation: backgroundShift 20s ease-in-out infinite;
}

@keyframes backgroundShift {
  0%, 100% { transform: scale(1) rotate(0deg); }
  50% { transform: scale(1.1) rotate(1deg); }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb {
  background: var(--primary-gradient);
  border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--secondary-gradient);
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.hero {
  text-align: center;
  padding: 60px 0 40px;
  position: relative;
}

.page-title {
  font-size: 3.5rem;
  font-weight: 800;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
  animation: titleGlow 3s ease-in-out infinite;
}

@keyframes titleGlow {
  0%, 100% { filter: drop-shadow(0 0 20px rgba(102, 126, 234, 0.3)); }
  50% { filter: drop-shadow(0 0 30px rgba(102, 126, 234, 0.6)); }
}

.page-subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 40px;
  font-weight: 400;
}

/* Loading Status */
.loading-status {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 20px;
  padding: 16px 24px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  backdrop-filter: blur(10px);
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 500;
  animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Main Content */
.main {
  padding: 40px 0;
}

.sections {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
  gap: 40px;
  margin-top: 40px;
}

/* Section Cards */
.section {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  backdrop-filter: blur(20px);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--primary-gradient);
  transform: scaleX(0);
  transition: transform var(--transition-normal);
}

.section:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl), var(--glow);
}

.section:hover::before {
  transform: scaleX(1);
}

.section__title {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 24px;
  color: var(--text-primary);
  position: relative;
}

.section__title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 40px;
  height: 3px;
  background: var(--primary-gradient);
  border-radius: 2px;
}

/* Input Styling */
.section__input-wrapper {
  position: relative;
  margin-bottom: 24px;
}

.section__input {
  width: 100%;
  padding: 16px 20px;
  font-size: 1rem;
  background: rgba(255, 255, 255, 0.1);
  border: 2px solid var(--card-border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  transition: all var(--transition-normal);
  text-transform: uppercase;
  font-weight: 500;
}

.section__input::placeholder {
  color: var(--text-secondary);
  font-weight: 400;
  text-transform: none;
}

.section__input:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
  background: rgba(255, 255, 255, 0.15);
}

.section__input-suggestions {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  max-height: 200px;
  overflow-y: auto;
  background: rgba(15, 15, 35, 0.95);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  backdrop-filter: blur(20px);
  z-index: 1000;
  box-shadow: var(--shadow-lg);
}

.section__input-suggestions li {
  padding: 12px 20px;
  cursor: pointer;
  transition: all var(--transition-fast);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  position: relative;
}

.section__input-suggestions li:last-child {
  border-bottom: none;
}

.section__input-suggestions li:hover {
  background: rgba(102, 126, 234, 0.2);
  color: var(--text-primary);
  transform: translateX(5px);
}

.section__input-suggestions li:active {
  background: rgba(102, 126, 234, 0.4);
  transform: translateX(8px);
}

/* Button Styling */
.section__buttons {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.section__action {
  padding: 14px 28px;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  background: var(--primary-gradient);
  color: white;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  min-width: 140px;
}

.section__action::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left var(--transition-slow);
}

.section__action:hover::before {
  left: 100%;
}

.section__action:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), 0 0 20px rgba(102, 126, 234, 0.4);
}

.section__action:active {
  transform: translateY(0);
}

.section__action.secondary {
  background: var(--secondary-gradient);
}

.section__action.secondary:hover {
  box-shadow: var(--shadow-lg), 0 0 20px rgba(240, 147, 251, 0.4);
}

.section__action:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.section__action.loading {
  opacity: 0.8;
  cursor: not-allowed;
}

/* Loading Spinner */
.loading-spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: white;
  animation: spin 1s ease-in-out infinite;
  margin-right: 8px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Content Areas */
.section__content {
  margin-top: 24px;
}

.section__list-wrapper {
  margin-bottom: 24px;
}

/* Portfolio Grid */
.portfolio-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

@media (max-width: 768px) {
  .portfolio-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}

.section__list-title {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.section__list-title::before {
  content: '';
  width: 4px;
  height: 20px;
  background: var(--primary-gradient);
  border-radius: 2px;
}

.section__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 8px;
}

.section__list-item-key,
.section__list-item-value {
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-sm);
  border-left: 3px solid transparent;
  transition: all var(--transition-fast);
  font-weight: 500;
}

.section__list-item-key:nth-child(2n),
.section__list-item-value:nth-child(2n) {
  background: rgba(102, 126, 234, 0.1);
  border-left-color: var(--accent-color);
}

.section__list-item-error {
  color: var(--error-color);
  font-weight: 600;
  padding: 12px 16px;
  background: rgba(245, 87, 108, 0.1);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--error-color);
  margin: 8px 0;
  animation: shake 0.5s ease-in-out;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-5px); }
  75% { transform: translateX(5px); }
}

/* Responsive Design */
@media (max-width: 768px) {
  .page-title {
    font-size: 2.5rem;
  }
  
  .sections {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  .section {
    padding: 24px;
  }
  
  .section__buttons {
    flex-direction: column;
  }
  
  .section__action {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .page-title {
    font-size: 2rem;
  }
  
  .section {
    padding: 20px;
  }
  
  .section__title {
    font-size: 1.5rem;
  }
}

/* Animations */
@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.section {
  animation: slideInUp 0.6s ease-out;
}

.section:nth-child(2) {
  animation-delay: 0.2s;
}

/* Hover Effects */
.section__list-item-key:hover,
.section__list-item-value:hover {
  background: rgba(102, 126, 234, 0.15);
  transform: translateX(5px);
}

/* Focus States */
.section__action:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.3);
}

/* Loading States */
.section__action.loading {
  pointer-events: none;
}

.section__action.loading .loading-spinner {
  animation: spin 1s linear infinite;
}

/* Success States */
.section__list-item-key.success,
.section__list-item-value.success {
  border-left-color: var(--success-color);
  background: rgba(79, 172, 254, 0.1);
}

/* Warning States */
.section__list-item-key.warning,
.section__list-item-value.warning {
  border-left-color: var(--warning-color);
  background: rgba(240, 147, 251, 0.1);
}