/* ===================================
   RESET & BASE STYLES
   =================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Colors */
  --bg-primary: #0a0a0f;
  --bg-secondary: #13131a;
  --text-primary: #ffffff;
  --text-secondary: #a0a0b0;
  --text-muted: #6b6b7a;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-accent: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --gradient-success: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);

  /* Glass Effect */
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

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

/* ===================================
   BACKGROUND ANIMATION
   =================================== */
.bg-animation {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  overflow: hidden;
}

.gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.3;
  animation: float 20s ease-in-out infinite;
}

.orb-1 {
  width: 500px;
  height: 500px;
  background: linear-gradient(135deg, #667eea, #764ba2);
  top: -250px;
  left: -250px;
  animation-delay: 0s;
}

.orb-2 {
  width: 400px;
  height: 400px;
  background: linear-gradient(135deg, #f093fb, #f5576c);
  bottom: -200px;
  right: -200px;
  animation-delay: 5s;
}

.orb-3 {
  width: 350px;
  height: 350px;
  background: linear-gradient(135deg, #4facfe, #00f2fe);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation-delay: 10s;
}

@keyframes float {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }
  33% {
    transform: translate(50px, -50px) scale(1.1);
  }
  66% {
    transform: translate(-50px, 50px) scale(0.9);
  }
}

/* ===================================
   CONTAINER & LAYOUT
   =================================== */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--spacing-lg);
  position: relative;
  z-index: 1;
}

/* ===================================
   HERO SECTION
   =================================== */
.hero {
  text-align: center;
  padding: var(--spacing-2xl) 0;
  animation: fadeInUp 0.8s ease;
}

.logo-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 50px;
  backdrop-filter: blur(10px);
  margin-bottom: var(--spacing-lg);
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--transition-normal);
}

.logo-badge:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
}

.logo-badge svg {
  color: #667eea;
}

.hero-title {
  font-family: "Outfit", sans-serif;
  font-size: clamp(2.5rem, 8vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--spacing-md);
  letter-spacing: -0.02em;
}

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

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ===================================
   GLASS CARDS
   =================================== */
.glass-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(20px);
  box-shadow: var(--glass-shadow);
  transition: all var(--transition-normal);
}

.glass-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-4px);
  box-shadow: 0 12px 48px 0 rgba(0, 0, 0, 0.5);
}

/* ===================================
   UPLOAD SECTION
   =================================== */
.upload-section {
  margin: var(--spacing-xl) 0;
  animation: fadeInUp 0.8s ease 0.2s backwards;
}

.upload-card {
  padding: var(--spacing-xl);
}

.upload-zone {
  text-align: center;
  padding: var(--spacing-2xl);
  border: 2px dashed var(--glass-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-normal);
  cursor: pointer;
}

.upload-zone:hover,
.upload-zone.drag-over {
  border-color: #667eea;
  background: rgba(102, 126, 234, 0.05);
}

.upload-zone.drag-over {
  transform: scale(1.02);
}

.upload-icon {
  color: #667eea;
  margin-bottom: var(--spacing-md);
  animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.upload-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
}

.upload-text {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xs);
}

.upload-formats {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: var(--spacing-lg);
}

/* ===================================
   BUTTONS
   =================================== */
.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 1rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-normal);
  font-family: inherit;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background: var(--glass-bg);
  color: var(--text-primary);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.btn-remove {
  background: rgba(245, 87, 108, 0.1);
  border: 1px solid rgba(245, 87, 108, 0.3);
  color: #f5576c;
  padding: var(--spacing-xs);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-remove:hover {
  background: rgba(245, 87, 108, 0.2);
  transform: scale(1.1);
}

/* ===================================
   FILE INFO
   =================================== */
.file-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  background: rgba(102, 126, 234, 0.1);
  border: 1px solid rgba(102, 126, 234, 0.3);
  border-radius: var(--radius-md);
  margin-top: var(--spacing-lg);
  animation: slideInRight 0.4s ease;
}

.file-icon {
  color: #667eea;
  display: flex;
  align-items: center;
  justify-content: center;
}

.file-details {
  flex: 1;
}

.file-name {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.file-size {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* ===================================
   PROCESSING INDICATOR
   =================================== */
.processing {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-xl);
  animation: fadeIn 0.3s ease;
}

.spinner {
  width: 50px;
  height: 50px;
  border: 4px solid rgba(102, 126, 234, 0.2);
  border-top-color: #667eea;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* ===================================
   STATS SECTION
   =================================== */
.stats-section {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin: var(--spacing-xl) 0;
  animation: fadeInUp 0.8s ease 0.4s backwards;
}

.stat-card {
  text-align: center;
  padding: var(--spacing-xl);
}

.stat-icon {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
}

.stat-value {
  font-size: 2.5rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  color: var(--text-secondary);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ===================================
   PREVIEW SECTION
   =================================== */
.preview-section {
  margin: var(--spacing-xl) 0;
  animation: fadeInUp 0.8s ease 0.6s backwards;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.section-title {
  font-family: "Outfit", sans-serif;
  font-size: 2rem;
  font-weight: 700;
}

.table-card {
  padding: 0;
  overflow: hidden;
}

.table-wrapper {
  overflow-x: auto;
  max-height: 600px;
  overflow-y: auto;
}

/* Custom Scrollbar */
.table-wrapper::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

.table-wrapper::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
}

.table-wrapper::-webkit-scrollbar-thumb {
  background: rgba(102, 126, 234, 0.5);
  border-radius: 4px;
}

.table-wrapper::-webkit-scrollbar-thumb:hover {
  background: rgba(102, 126, 234, 0.7);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.data-table thead {
  position: sticky;
  top: 0;
  background: rgba(13, 13, 26, 0.95);
  backdrop-filter: blur(10px);
  z-index: 10;
}

.data-table th {
  padding: var(--spacing-md);
  text-align: left;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  border-bottom: 2px solid var(--glass-border);
  white-space: nowrap;
}

.data-table td {
  padding: var(--spacing-md);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
}

.data-table tbody tr {
  transition: background var(--transition-fast);
}

.data-table tbody tr:hover {
  background: rgba(102, 126, 234, 0.05);
}

.data-table td a {
  color: #667eea;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.data-table td a:hover {
  color: #764ba2;
  text-decoration: underline;
}

/* ===================================
   FOOTER
   =================================== */
.footer {
  text-align: center;
  padding: var(--spacing-xl) 0;
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* ===================================
   ANIMATIONS
   =================================== */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

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

/* ===================================
   RESPONSIVE DESIGN
   =================================== */
@media (max-width: 768px) {
  .container {
    padding: var(--spacing-md);
  }

  .hero {
    padding: var(--spacing-xl) 0;
  }

  .upload-card {
    padding: var(--spacing-lg);
  }

  .upload-zone {
    padding: var(--spacing-xl);
  }

  .section-header {
    flex-direction: column;
    align-items: stretch;
  }

  .btn-secondary {
    width: 100%;
    justify-content: center;
  }

  .stats-section {
    grid-template-columns: 1fr;
  }

  .data-table {
    font-size: 0.75rem;
  }

  .data-table th,
  .data-table td {
    padding: var(--spacing-sm);
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 0.875rem;
  }

  .btn-primary,
  .btn-secondary {
    padding: 0.875rem 1.5rem;
    font-size: 0.875rem;
  }
}