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

:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-card: #ffffff;
  --text-primary: #1a1a1a;
  --text-secondary: #6c757d;
  --border: #e9ecef;
  --accent: #6366f1;
  --accent-hover: #4f46e5;
  --shadow: rgba(0, 0, 0, 0.1);
  --nav-bg: rgba(255, 255, 255, 0.95);
  --success: #10b981;
}

[data-theme="dark"] {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-card: #1e293b;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --border: #334155;
  --accent: #818cf8;
  --accent-hover: #6366f1;
  --shadow: rgba(0, 0, 0, 0.3);
  --nav-bg: rgba(15, 23, 42, 0.95);
  --success: #34d399;
}

body {
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  transition: background 0.3s ease, color 0.3s ease;
  min-height: 100vh;
}

/* Navbar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--nav-bg);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  transition: all 0.3s ease;
  animation: slideDown 0.5s ease;
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: transform 0.3s ease;
}

.logo:hover {
  transform: scale(1.05);
}

.logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}

.theme-toggle {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 50px;
  width: 60px;
  height: 32px;
  position: relative;
  cursor: pointer;
  transition: all 0.3s ease;
}

.theme-toggle:hover {
  transform: scale(1.05);
}

.theme-toggle-slider {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 24px;
  height: 24px;
  background: var(--accent);
  border-radius: 50%;
  transition: transform 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 12px;
}

[data-theme="dark"] .theme-toggle-slider {
  transform: translateX(28px);
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-primary));
  padding: 3rem 2rem;
  text-align: center;
  animation: fadeIn 0.8s ease;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.controls-section {
  max-width: 1400px;
  margin: 2rem auto;
  padding: 0 2rem;
  animation: fadeIn 0.8s ease 0.2s both;
}

.controls {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
  background: var(--bg-card);
  padding: 1.5rem;
  border-radius: 16px;
  border: 1px solid var(--border);
  box-shadow: 0 4px 6px var(--shadow);
}

.search-wrapper {
  flex: 1;
  min-width: 250px;
  position: relative;
}

.search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-secondary);
}

input[type="search"] {
  width: 100%;
  padding: 0.875rem 1rem 0.875rem 3rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 1rem;
  transition: all 0.3s ease;
}

input[type="search"]:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

select {
  padding: 0.875rem 1rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

select:focus {
  outline: none;
  border-color: var(--accent);
}

.status {
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  animation: fadeIn 0.8s ease 0.4s both;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.3s ease;
  cursor: pointer;
  animation: scaleIn 0.5s ease both;
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 24px var(--shadow);
  border-color: var(--accent);
}

.card-image {
  position: relative;
  width: 100%;
  height: 220px;
  overflow: hidden;
  background: var(--bg-secondary);
}

.card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.card:hover img {
  transform: scale(1.1);
}

.card-content {
  padding: 1.25rem;
}

.card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
  display: -webkit-box;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-meta {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.badge {
  background: var(--bg-secondary);
  padding: 0.25rem 0.75rem;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 500;
}

.price {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
  margin-top: 0.5rem;
}

.empty-state {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--text-secondary);
}

.empty-state-icon {
  font-size: 4rem;
  margin-bottom: 1rem;
  opacity: 0.5;
}

/* Loading Spinner */
.spinner {
  border: 3px solid var(--border);
  border-top: 3px solid var(--accent);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
  margin: 2rem auto;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-container {
    padding: 1rem;
  }

  .hero h1 {
    font-size: 1.75rem;
  }

  .controls {
    flex-direction: column;
  }

  .search-wrapper {
    width: 100%;
  }
}