:root {
  --primary: #5d5dff;
  --primary-hover: #4a4aff;
  --secondary: #64748b;
  --bg: #f8fafc;
  --card-bg: rgba(255, 255, 255, 0.8);
  --glass-border: rgba(226, 232, 240, 0.8);
  --text-main: #0f172a;
  --text-muted: #64748b;
  --radius: 16px;
  --shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
}

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

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background-color: var(--bg);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, .logo {
  font-family: 'Outfit', sans-serif;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.premium-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* NAVBAR */
nav {
  height: 90px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
  transition: all 0.3s ease;
}

nav.scrolled {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px);
  height: 70px;
  border-bottom: 1px solid var(--glass-border);
}

.logo {
  font-size: 1.8rem;
  color: var(--primary);
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 1rem;
}

/* BUTTONS */
.btn {
  padding: 0.75rem 1.5rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  display: inline-block;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--primary);
  color: white;
  box-shadow: 0 4px 14px 0 rgba(93, 93, 255, 0.39);
}

.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(93, 93, 255, 0.23);
}

/* HERO */
.hero {
  padding: 8rem 0 6rem;
  text-align: center;
  background: radial-gradient(circle at top right, rgba(93, 93, 255, 0.05), transparent),
              radial-gradient(circle at bottom left, rgba(93, 93, 255, 0.05), transparent);
}

.hero h1 {
  font-size: 4rem;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  color: #1e293b;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 2.5rem;
}

/* CARDS */
.glass {
  background: var(--card-bg);
  backdrop-filter: blur(8px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.listing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2.5rem;
  margin-top: 3rem;
}

.puppy-card {
  transition: transform 0.3s ease;
  overflow: hidden;
}

.puppy-card:hover {
  transform: translateY(-8px);
}

.puppy-image {
  height: 240px;
  background: #e2e8f0;
  position: relative;
}

.puppy-info {
  padding: 1.5rem;
}

.puppy-price {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 0.5rem;
}

.puppy-breed {
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
}

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

/* BADGES */
.badge {
  display: inline-block;
  padding: 0.4rem 1rem;
  background: #f1f5f9;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
  margin-right: 0.5rem;
}

/* ANIMATIONS */
@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

.pulse {
  animation: pulse 2s infinite ease-in-out;
}

/* FOOTER */
footer {
  margin-top: 8rem;
  padding: 4rem 0 2rem;
  border-top: 1px solid var(--glass-border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 4rem;
}

.footer-brand p {
  margin-top: 1rem;
  color: var(--text-muted);
  max-width: 300px;
}

.footer-bottom {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--glass-border);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* SEARCH PAGE */
.search-layout {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 3rem;
  padding-top: 4rem;
}

.filter-group {
  margin-bottom: 1.5rem;
}

.filter-group label {
  display: block;
  font-weight: 700;
  font-size: 0.85rem;
  margin-bottom: 0.5rem;
  color: var(--text-muted);
  text-transform: uppercase;
}