/* Custom Design Tokens */
:root {
  --primary-color: #2563eb;
  --primary-hover: #1d4ed8;
  --bg-gradient: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  --card-bg: #ffffff;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --accent-green: #10b981;
  --border-color: #e2e8f0;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --radius: 12px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body {
  background-color: #f8fafc;
  color: var(--text-main);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header & Hero Section */
.hero-section {
  background: var(--bg-gradient);
  color: #ffffff;
  padding: 60px 20px 80px;
  text-align: center;
}

.hero-container {
  max-width: 800px;
  margin: 0 auto;
}

.hero-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: #94a3b8;
  margin-bottom: 36px;
}

/* Search Box Container */
.search-box-wrapper {
  background: #ffffff;
  padding: 8px;
  border-radius: 16px;
  display: flex;
  gap: 10px;
  box-shadow: var(--shadow-lg);
  max-width: 700px;
  margin: 0 auto;
}

.search-input {
  flex: 1;
  border: none;
  outline: none;
  padding: 14px 18px;
  font-size: 1rem;
  color: var(--text-main);
  border-radius: 10px;
}

.search-btn {
  background-color: var(--primary-color);
  color: #ffffff;
  border: none;
  padding: 14px 28px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 10px;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.search-btn:hover {
  background-color: var(--primary-hover);
}

/* Main Content Area */
.main-container {
  max-width: 900px;
  margin: -40px auto 40px;
  padding: 0 20px;
  flex: 1;
  width: 100%;
}

/* Feature Grid Placeholder */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin-top: 20px;
}

.feature-card {
  background: var(--card-bg);
  padding: 24px;
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  text-align: center;
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.feature-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Footer */
footer {
  text-align: center;
  padding: 24px;
  color: var(--text-muted);
  font-size: 0.875rem;
  border-top: 1px solid var(--border-color);
  background: #ffffff;
}

/* Responsive adjustments */
@media (max-width: 600px) {
  .hero-title { font-size: 1.8rem; }
  .search-box-wrapper { flex-direction: column; }
  .search-btn { width: 100%; }
}