:root {
  --primary: #1a1a2e;
  --primary-light: #2d2d4e;
  --accent: #e94560;
  --accent-hover: #d63851;
  --bg: #f0f2f5;
  --card: #ffffff;
  --text: #2d2d2d;
  --muted: #6c757d;
  --border: #dee2e6;
  --success: #28a745;
  --warning: #ffc107;
  --radius: 10px;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.app { min-height: 100vh; display: flex; flex-direction: column; }

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: white;
  padding: 3rem 2rem;
  text-align: center;
}

.hero h1 { font-size: 2.2rem; margin-bottom: 0.5rem; }
.hero p { opacity: 0.85; font-size: 1.1rem; }

/* Main */
.main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem;
  flex: 1;
}

/* Form */
.input-section {
  background: var(--card);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
  margin-bottom: 2rem;
}

.input-section h2 { color: var(--primary); margin-bottom: 1.5rem; font-size: 1.4rem; }

.form { display: flex; flex-direction: column; gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: 0.3rem; }
.form-group label { font-weight: 600; font-size: 0.9rem; color: var(--primary); }
.form-group input, .form-group select {
  padding: 0.7rem 1rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 1rem;
  transition: border-color 0.2s;
}
.form-group input:focus, .form-group select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(233, 69, 96, 0.15);
}
.form-group small { font-size: 0.8rem; color: var(--muted); }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-actions {
  display: flex;
  gap: 1rem;
  margin-top: 0.5rem;
  flex-wrap: wrap;
}

.btn {
  padding: 0.7rem 1.5rem;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: all 0.2s;
}

.btn-primary { background: var(--accent); color: white; }
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

.btn-secondary { background: var(--primary); color: white; }
.btn-secondary:hover { background: var(--primary-light); }

.btn-small { padding: 0.4rem 0.8rem; font-size: 0.85rem; background: var(--primary); color: white; }
.btn-small:hover { background: var(--primary-light); }

/* Output */
.output-section {
  background: var(--card);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
  margin-bottom: 2rem;
}

.output-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.output-header h2 { color: var(--primary); font-size: 1.3rem; }

.output-actions { display: flex; gap: 0.5rem; }

.report-container {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem;
  max-height: 80vh;
  overflow-y: auto;
  background: white;
}

.report-container h2 { color: var(--primary); border-bottom: 2px solid var(--accent); padding-bottom: 0.4rem; margin: 1.5rem 0 0.8rem; }
.report-container h3 { color: var(--primary-light); margin: 1rem 0 0.5rem; }
.report-container table { width: 100%; border-collapse: collapse; margin: 0.8rem 0; }
.report-container th, .report-container td { padding: 0.4rem 0.6rem; border: 1px solid var(--border); text-align: left; font-size: 0.85rem; }
.report-container th { background: var(--primary); color: white; }
.report-container blockquote { border-left: 3px solid var(--accent); padding-left: 1rem; margin: 0.8rem 0; color: var(--muted); font-style: italic; }

/* Info Section */
.info-section {
  margin-bottom: 2rem;
}

.info-section h2 { color: var(--primary); margin-bottom: 1.5rem; font-size: 1.4rem; text-align: center; }

.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.info-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  text-align: center;
}

.info-card h3 { color: var(--primary); margin-bottom: 0.5rem; font-size: 1.1rem; }
.info-card p { color: var(--muted); font-size: 0.9rem; }

/* Ticker Grid */
.ticker-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 0.8rem;
  margin-bottom: 2rem;
}

.ticker-card {
  background: var(--card);
  border: 2px solid var(--border);
  border-radius: 8px;
  padding: 0.8rem 1rem;
  cursor: pointer;
  transition: all 0.2s;
  font-size: 0.9rem;
}

.ticker-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(233, 69, 96, 0.15);
}

.ticker-card strong {
  color: var(--accent);
  margin-right: 0.3rem;
}

/* Footer */
.footer {
  background: var(--primary);
  color: rgba(255,255,255,0.7);
  text-align: center;
  padding: 1.5rem;
  font-size: 0.85rem;
}

/* Loading */
.loading-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.loading-content {
  background: white;
  border-radius: var(--radius);
  padding: 2.5rem;
  text-align: center;
  min-width: 300px;
}

.spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 1rem;
}

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

.loading-content p { color: var(--muted); }

/* Responsive */
@media (max-width: 640px) {
  .hero { padding: 2rem 1rem; }
  .hero h1 { font-size: 1.6rem; }
  .main { padding: 1rem; }
  .form-row { grid-template-columns: 1fr; }
  .output-header { flex-direction: column; }
}