:root {
  --bg-primary: #0a0e14;
  --bg-secondary: #151b23;
  --bg-accent: #1e252e;
  --text-primary: #f0f6fc;
  --text-secondary: #8b949e;
  --accent-color: #2f81f7;
  --accent-hover: #58a6ff;
  --nifty-green: #3fb950;
  --nifty-red: #f85149;
  --border-color: #30363d;
  --card-shadow: 0 8px 24px rgba(0,0,0,0.5);
  --font-main: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 48px;
}

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

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-main);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

/* Layout */
.container {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

header {
  height: 70px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
  background: rgba(10, 14, 20, 0.8);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -1px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--accent-hover);
}

.logo span {
  color: var(--text-primary);
}

/* Dashboard Grid */
.dashboard {
  display: grid;
  grid-template-columns: 1fr 350px;
  gap: var(--spacing-lg);
  padding: var(--spacing-lg) 0;
}

@media (max-width: 1024px) {
  .dashboard {
    grid-template-columns: 1fr;
  }
}

/* Cards */
.card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: var(--spacing-lg);
  box-shadow: var(--card-shadow);
  overflow: hidden;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--spacing-md);
}

.card-title {
  font-size: 1rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
}

/* Market Indices Grid */
.indices-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.index-card {
  padding: var(--spacing-md);
  transition: transform 0.2s ease, border-color 0.2s ease;
  cursor: pointer;
}

.index-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent-color);
}

.index-name {
  font-size: 1.25rem;
  font-weight: 700;
}

.index-value {
  font-size: 2.5rem;
  font-weight: 800;
  margin: 4px 0;
  letter-spacing: -1px;
}

.index-change {
  display: flex;
  align-items: center;
  gap: 4px;
  font-weight: 600;
  font-size: 0.9rem;
}

.up { color: var(--nifty-green); }
.down { color: var(--nifty-red); }

/* Visualization Section */
.viz-container {
  min-height: 400px;
  background: var(--bg-accent);
  border-radius: 8px;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 1px dashed var(--border-color);
  margin-top: var(--spacing-md);
}

.placeholder-viz {
  width: 90%;
  height: 300px;
  background: linear-gradient(90deg, transparent 0%, rgba(47, 129, 247, 0.05) 50%, transparent 100%);
  background-size: 200% 100%;
  animation: pulse 3s infinite linear;
  display: flex;
  align-items: flex-end;
  padding: 20px;
  gap: 10px;
}

@keyframes pulse {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.bar {
  flex: 1;
  background: var(--accent-color);
  border-radius: 4px 4px 0 0;
  opacity: 0.7;
}

/* Form Styles */
.generate-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

select, input {
  background: var(--bg-accent);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 12px;
  border-radius: 6px;
  font-size: 1rem;
  outline: none;
}

select:focus, input:focus {
  border-color: var(--accent-color);
}

.btn {
  background: var(--accent-color);
  color: white;
  border: none;
  padding: 14px;
  border-radius: 6px;
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn:hover {
  background: var(--accent-hover);
}

.btn-secondary {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
}

.btn-secondary:hover {
  background: var(--bg-accent);
  color: var(--text-primary);
}

/* Timeline */
.timeline {
  list-style: none;
  margin-top: var(--spacing-md);
}

.timeline-item {
  padding-left: 20px;
  border-left: 2px solid var(--border-color);
  position: relative;
  padding-bottom: 20px;
}

.timeline-item::after {
  content: '';
  position: absolute;
  left: -7px;
  top: 0;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent-color);
}

.timeline-time {
  font-size: 0.75rem;
  color: var(--text-secondary);
  display: block;
}

.timeline-desc {
  font-size: 0.9rem;
}

/* Badges */
.badge {
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

.badge-new { background: rgba(63, 185, 80, 0.2); color: var(--nifty-green); }
.badge-hot { background: rgba(248, 81, 73, 0.2); color: var(--nifty-red); }

.placeholder-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  color: currentColor;
}