:root {
  --primary-gradient: linear-gradient(135deg, #a855f7, #6366f1);
  --secondary-gradient: linear-gradient(135deg, #0ea5e9, #2563eb);
  --bg-dark: #0b0f19;
  --card-bg: rgba(17, 24, 39, 0.7);
  --card-border: 1px solid rgba(255, 255, 255, 0.08);
  --text-hover: #cbd5e1;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --accent-purple: #a855f7;
  --accent-blue: #0ea5e9;
  --glass-blur: blur(20px);
}

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

body {
  background-color: var(--bg-dark);
  font-family: "Outfit", sans-serif;
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* Background Globos (Figma Style) */
.background-globes {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: -1;
}

.globe {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.35;
  animation: pulse 12s infinite alternate ease-in-out;
}

.globe-1 {
  width: 600px;
  height: 600px;
  background: #6d28d9;
  top: -200px;
  left: -100px;
}
.globe-2 {
  width: 700px;
  height: 700px;
  background: #db2777;
  bottom: -250px;
  right: -150px;
  animation-delay: 2s;
}
.globe-3 {
  width: 400px;
  height: 400px;
  background: #0284c7;
  top: 30%;
  left: 20%;
  animation-duration: 18s;
  opacity: 0.2;
}

@keyframes pulse {
  0% {
    transform: scale(1) translate(0, 0);
    opacity: 0.3;
  }
  100% {
    transform: scale(1.1) translate(40px, 60px);
    opacity: 0.45;
  }
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px 24px;
}

/* Header (Screen 1) */
.header {
  text-align: center;
  margin-bottom: 60px;
}

.logo {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  margin-bottom: 12px;
}

.logo i {
  font-size: 3rem;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

h1 {
  font-size: 3.5rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  background: linear-gradient(180deg, #fff 0%, #94a3b8 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.subtitle {
  color: var(--text-secondary);
  font-size: 1.25rem;
  font-weight: 300;
}

/* Upload Card (Screen 1 & 2) */
.upload-card {
  max-width: 700px;
  margin: 0 auto 50px;
}

.card {
  background: var(--card-bg);
  backdrop-filter: var(--glass-blur);
  border: var(--card-border);
  border-radius: 24px;
  padding: 32px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.card:hover {
  border-color: rgba(168, 85, 247, 0.3);
  box-shadow: 0 30px 60px -15px rgba(0, 0, 0, 0.7);
}

.card-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
}

.card-header i {
  font-size: 1.6rem;
  color: var(--accent-purple);
}
.card-header h2 {
  font-size: 1.6rem;
  font-weight: 600;
}

.file-input-wrapper {
  position: relative;
  height: 180px;
  border: 2px dashed rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: rgba(255, 255, 255, 0.02);
  margin-bottom: 24px;
  transition: all 0.3s;
}

.file-input-wrapper:hover {
  border-color: var(--accent-purple);
  background: rgba(168, 85, 247, 0.04);
}

.file-label i {
  font-size: 3.5rem;
  color: var(--text-secondary);
  opacity: 0.6;
}

.btn-primary {
  width: 100%;
  padding: 18px;
  border: none;
  border-radius: 16px;
  background: var(--primary-gradient);
  color: white;
  font-size: 1.15rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 10px 20px -5px rgba(139, 92, 246, 0.4);
  transition: all 0.3s;
}

.btn-primary:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
  box-shadow: 0 15px 30px -5px rgba(139, 92, 246, 0.6);
}

/* Predictor (Screen 3, 11-14) */
.predict-card {
  border-top: 4px solid var(--accent-blue);
}

.predict-controls {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
}

.predict-select {
  flex: 1;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 12px 16px;
  color: white;
  font-family: inherit;
  font-size: 1rem;
}

.predict-btn {
  background: var(--secondary-gradient);
  color: white;
  border: none;
  padding: 12px 24px;
  border-radius: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: 0.3s;
}

.download-btn-chart {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-secondary);
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s;
}

.download-btn-chart:hover {
  background: var(--primary-gradient);
  color: white;
  transform: scale(1.1);
  border-color: transparent;
}

/* Data Table (Screen 4) */
.preview-card {
  overflow: hidden;
  padding: 0 !important;
}

.preview-header {
  padding: 24px 32px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.table-wrapper {
  max-height: 450px;
  overflow-y: auto;
  overflow-x: auto;
}

.styled-table {
  width: 100%;
  border-collapse: collapse;
  white-space: nowrap;
}

.styled-table th {
  position: sticky;
  top: 0;
  background: #1e293b;
  padding: 16px 24px;
  text-align: left;
  font-weight: 600;
  color: var(--text-secondary);
  z-index: 10;
}

.styled-table td {
  padding: 16px 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
  font-size: 0.95rem;
  color: var(--text-hover);
}

.styled-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

/* Accuracy Badge */
.accuracy-badge {
  display: inline-block;
  padding: 8px 20px;
  background: rgba(16, 185, 129, 0.15);
  color: #10b981;
  border-radius: 100px;
  font-weight: 600;
  font-size: 0.9rem;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

/* Insights (Screen 7) */
.insights-grid {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  padding-bottom: 10px;
}

.insight-item {
  min-width: 280px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 16px;
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.insight-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}

.insight-icon.blue {
  background: rgba(59, 130, 246, 0.2);
  color: #60a5fa;
}
.insight-icon.red {
  background: rgba(239, 68, 68, 0.2);
  color: #f87171;
}
.insight-icon.purple {
  background: rgba(168, 85, 247, 0.2);
  color: #c084fc;
}

/* Grid for Stats (Screen 6) */
.grid-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 30px;
  margin-bottom: 30px;
}

/* Prediction Feature List */
.feature-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.feature-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.bar-bg {
  width: 100%;
  height: 8px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 4px;
  margin-top: 6px;
  position: relative;
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  background: var(--primary-gradient);
  border-radius: 4px;
}

/* Downloads (Screen 5) */
.btn-download {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(16, 185, 129, 0.1);
  color: #10b981;
  border: 1px solid rgba(16, 185, 129, 0.2);
  padding: 14px 28px;
  border-radius: 14px;
  text-decoration: none;
  font-weight: 600;
  transition: 0.3s;
}

.btn-download:hover {
  background: #10b981;
  color: white;
}

/* Chart Styles */
.chart-card {
  min-height: 450px;
}

/* Responsive */
@media (max-width: 640px) {
  h1 {
    font-size: 2.5rem;
  }
  .grid-container {
    grid-template-columns: 1fr;
  }
  .predict-controls {
    flex-direction: column;
  }
}

/* Animations */
.fade-in {
  animation: fadeIn 0.8s forwards;
}
.slide-up {
  animation: slideUp 0.6s forwards cubic-bezier(0.16, 1, 0.3, 1);
  opacity: 0;
}
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.delay-1 {
  animation-delay: 0.1s;
}
.delay-2 {
  animation-delay: 0.2s;
}
.delay-3 {
  animation-delay: 0.3s;
}
.delay-4 {
  animation-delay: 0.4s;
}
/* Chat Bubbles */
.chat-message {
  margin-bottom: 12px;
  padding: 10px 14px;
  border-radius: 12px;
  max-width: 85%;
  font-size: 0.9rem;
  line-height: 1.4;
}

.chat-message.bot {
  background: rgba(168, 85, 247, 0.1);
  color: #e9d5ff;
  align-self: flex-start;
  border: 1px solid rgba(168, 85, 247, 0.2);
}

.chat-message.user {
  background: rgba(14, 165, 233, 0.1);
  color: #bae6fd;
  align-self: flex-end;
  margin-left: auto;
  border: 1px solid rgba(14, 165, 233, 0.2);
}

#chatWindow {
  display: flex;
  flex-direction: column;
}