:root {
  --bg-color: #f4f7f9;
  --surface-color: #ffffff;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --accent-color: #2563eb;
  --accent-hover: #1d4ed8;
  --border-color: #e2e8f0;
  --positive-color: #ef4444;
  --negative-color: #3b82f6;
  --neutral-color: #94a3b8;
  --input-bg: #ffffff;
  --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
}

body.dark-mode {
  --bg-color: #0f172a;
  --surface-color: #1e293b;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --accent-color: #3b82f6;
  --accent-hover: #60a5fa;
  --border-color: #334155;
  --input-bg: #0f172a;
}

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

body {
  font-family: 'Pretendard Variable', -apple-system, BlinkMacSystemFont, system-ui, Roboto, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.6;
  transition: background-color 0.3s ease;
  overflow-x: hidden;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.2rem 5%;
  background-color: var(--surface-color);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(8px);
}

.logo {
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--accent-color);
  letter-spacing: -0.05em;
}

.nav-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-link {
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.95rem;
  transition: color 0.2s;
}

.nav-link:hover { color: var(--accent-color); }

button {
  padding: 0.6rem 1.2rem;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background-color: var(--surface-color);
  color: var(--text-primary);
  cursor: pointer;
  font-weight: 600;
  transition: all 0.2s;
}

button:hover {
  background-color: var(--accent-color);
  color: white;
  border-color: var(--accent-color);
}

.container {
  max-width: 1200px;
  margin: 3rem auto;
  padding: 0 5%;
}

.dashboard-header {
  margin-bottom: 4rem;
  text-align: center;
}

.badge-main {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background-color: var(--accent-color);
  color: white;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 800;
  margin-bottom: 1rem;
}

.dashboard-header h1 {
  font-size: 2.8rem;
  font-weight: 900;
  margin-bottom: 0.8rem;
  letter-spacing: -0.05em;
  line-height: 1.1;
}

.intro-text {
  max-width: 700px;
  margin: 1.5rem auto;
  color: var(--text-secondary);
  font-size: 1.1rem;
  font-weight: 500;
}

.section-title {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  letter-spacing: -0.03em;
}

.section-desc {
  color: var(--text-secondary);
  margin-bottom: 2rem;
  font-weight: 500;
}

.news-grid {
  display: flex;
  overflow-x: auto;
  gap: 1.5rem;
  padding: 1rem 0.5rem 2rem;
  scroll-snap-type: x mandatory;
}

.news-grid::-webkit-scrollbar { height: 8px; }
.news-grid::-webkit-scrollbar-track { background: var(--border-color); border-radius: 10px; }
.news-grid::-webkit-scrollbar-thumb { background: var(--accent-color); border-radius: 10px; }

.news-card {
  flex: 0 0 380px;
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  scroll-snap-align: start;
}

.news-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.1);
}

.news-card h3 {
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: 1rem;
  line-height: 1.3;
}

.news-summary {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  flex-grow: 1;
}

.impact-box {
  background-color: var(--bg-color);
  padding: 1.2rem;
  border-radius: 12px;
}

.impact-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  font-weight: 800;
  font-size: 0.9rem;
}

.impact-status {
  padding: 0.25rem 0.75rem;
  border-radius: 50px;
  font-size: 0.8rem;
}

.status-positive { background-color: #fee2e2; color: #ef4444; }
.status-negative { background-color: #dbeafe; color: #3b82f6; }
.status-neutral { background-color: #f1f5f9; color: #64748b; }

.stocks-list { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.stock-tag {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  padding: 0.2rem 0.6rem;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 700;
}

/* Policy Page Styles */
.policy-container {
  max-width: 800px;
  margin: 0 auto;
  background-color: var(--surface-color);
  padding: 3rem;
  border-radius: 20px;
  box-shadow: var(--shadow);
  text-align: left;
}

.policy-content h3 {
  margin: 2rem 0 1rem;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--accent-color);
}

.policy-content p, .policy-content li {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  font-size: 1rem;
}

.policy-content ul {
  padding-left: 1.5rem;
  margin-bottom: 1.5rem;
}

/* Form Styles */
.form-container {
  max-width: 700px;
  margin: 0 auto;
  background-color: var(--surface-color);
  padding: 3.5rem;
  border-radius: 24px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow);
}

.partnership-form {
  display: flex;
  flex-direction: column;
  gap: 1.8rem;
  text-align: left;
}

.form-group label {
  display: block;
  font-size: 0.95rem;
  font-weight: 800;
  margin-bottom: 0.6rem;
  color: var(--text-primary);
}

.form-group input, .form-group textarea {
  width: 100%;
  padding: 1rem;
  border-radius: 12px;
  border: 2px solid var(--border-color);
  background-color: var(--input-bg);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 1rem;
  transition: all 0.2s;
}

.form-group input:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--accent-color);
}

.submit-btn {
  margin-top: 1rem;
  background-color: var(--accent-color);
  color: white;
  border: none;
  padding: 1.2rem;
  border-radius: 12px;
  font-size: 1.1rem;
  font-weight: 800;
  cursor: pointer;
  transition: all 0.2s;
}

.submit-btn:hover {
  background-color: var(--accent-hover);
  transform: translateY(-2px);
}

/* Footer */
.footer {
  background-color: var(--surface-color);
  border-top: 1px solid var(--border-color);
  padding: 4rem 5%;
  margin-top: 6rem;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.footer-logo {
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--accent-color);
  margin-bottom: 1.5rem;
}

.footer-disclaimer {
  max-width: 800px;
  margin: 0 auto 2rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-links a {
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
}

.copyright {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

@media (max-width: 768px) {
  .news-card { flex: 0 0 300px; }
  .dashboard-header h1 { font-size: 2rem; }
  .footer-links { flex-direction: column; gap: 1rem; }
  .policy-container, .form-container { padding: 2rem 1.5rem; }
}