:root {
  --primary: #6366f1;
  --primary-gradient: linear-gradient(135deg, #6366f1, #a855f7);
  --accent: #06d6a0;
  --bg-dark: #0f172a;
  --bg-card: #1e293b;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --border: #334155;
}

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

body {
  background: var(--bg-dark);
  color: var(--text-primary);
  min-height: 100vh;
  padding-bottom: 90px;
}

/* ================= HEADER ================= */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between; /* Changed from space-between */
  align-items: center;
  padding: 16px 20px;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

/* Logo container */
.logo {
  margin-right: auto; /* Push everything else to the right */
  width: 120px;
}

.logo-img{
  width: 100%
}

/* Back button positioning */
.back-btn {
  margin-right: 20px; /* Space between back button and logo */
}

/* Header actions (search/sell buttons) */
.header-actions {
  margin-left: auto; /* Push to far right */
}

.logo a {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}

.logo h1 {
  font-weight: 800;
  font-size: 1.5rem;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.5px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.search-btn, .filter-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
  transition: all 0.2s ease;
}

.search-btn:hover, .filter-btn:hover {
  background: rgba(255, 255, 255, 0.05);
  color: white;
}

.sell-btn {
  background: var(--primary-gradient);
  color: white;
  border: none;
  padding: 10px 18px;
  border-radius: 10px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.3s ease;
}

.sell-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}

/* ================= PAGE HEADER ================= */
.page-header {
  padding: 30px 20px 20px;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.page-header h2 {
  font-size: 2.2rem;
  margin-bottom: 12px;
  background: linear-gradient(to right, #ffffff, #c7d2fe);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.page-header p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  line-height: 1.5;
  max-width: 600px;
  margin: 0 auto 30px;
}

/* ================= SEARCH BAR ================= */
.search-container {
  max-width: 600px;
  margin: 0 auto 40px;
  padding: 0 20px;
}

.search-bar {
  position: relative;
}

.search-input {
  width: 100%;
  padding: 18px 24px 18px 56px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  color: white;
  font-size: 1rem;
  transition: all 0.3s ease;
}

.search-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.search-icon {
  position: absolute;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-secondary);
}

.search-hints {
  display: flex;
  gap: 12px;
  margin-top: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

.search-hint {
  padding: 8px 14px;
  background: rgba(30, 41, 59, 0.8);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s ease;
  color: var(--text-secondary);
}

.search-hint:hover {
  background: rgba(99, 102, 241, 0.1);
  color: white;
  border-color: var(--primary);
}

/* ================= CATEGORIES GRID ================= */
.categories-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px 60px;
}

.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.category-card-large {
  background: var(--bg-card);
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all 0.4s ease;
  cursor: pointer;
  position: relative;
}

.category-card-large:hover {
  transform: translateY(-10px);
  border-color: var(--primary);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.category-header-large {
  padding: 30px;
  text-align: center;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(168, 85, 247, 0.1));
}

.category-icon-large {
  font-size: 4rem;
  margin-bottom: 16px;
  display: block;
}

.category-title {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.category-stats {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.category-details {
  padding: 24px;
}

.category-description {
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 20px;
  font-size: 0.95rem;
}

.category-features {
  list-style: none;
  margin-bottom: 24px;
}

.category-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  font-size: 0.9rem;
  color: var(--text-primary);
}

.category-features i {
  color: var(--accent);
  flex-shrink: 0;
}

.browse-btn {
  width: 100%;
  background: var(--primary-gradient);
  color: white;
  border: none;
  padding: 16px;
  border-radius: 12px;
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.browse-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(99, 102, 241, 0.4);
}

/* ================= RECENT LISTINGS ================= */

/* ================= BOTTOM NAV ================= */
.bottom-nav {
  position: fixed;
  bottom: 0;
  width: 100%;
  background: rgba(2, 6, 23, 0.95);
  backdrop-filter: blur(20px);
  display: flex;
  justify-content: space-around;
  align-items: center;
  padding: 12px 0;
  z-index: 200;
  border-top: 1px solid var(--border);
}

.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.75rem;
  transition: all 0.2s ease;
  padding: 4px 8px;
}

.nav-item:hover, .nav-item.active {
  color: white;
  transform: translateY(-2px);
}

.nav-item i {
  font-size: 20px;
}

.sell-btn-nav {
  position: relative;
  top: -10px;
  background: var(--primary-gradient);
  border: none;
  border-radius: 50%;
  width: 56px;
  height: 56px;
  color: white;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 25px rgba(99, 102, 241, 0.5);
}

.sell-btn-nav:hover {
  transform: scale(1.1);
  box-shadow: 0 12px 30px rgba(99, 102, 241, 0.7);
}

/* ================= RESPONSIVE ================= */
@media (max-width: 768px) {
  .page-header h2 {
    font-size: 1.8rem;
  }
  
  .categories-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .category-header-large {
    padding: 24px;
  }
  
  .category-icon-large {
    font-size: 3rem;
  }
  
  .category-title {
    font-size: 1.5rem;
  }
  
  .listings-preview {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  
  .search-hints {
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 8px;
  }
  
  .search-hint {
    white-space: nowrap;
  }
  
  .bottom-nav {
    padding: 10px 0;
  }
  
  .sell-btn-nav {
    width: 50px;
    height: 50px;
  }
}

@media (max-width: 480px) {
  .listings-preview {
    grid-template-columns: 1fr;
  }
  
  .header-actions {
    gap: 8px;
  }
  
  .logo h1 {
    font-size: 1.2rem;
  }
  
  .page-header {
    padding: 24px 16px 16px;
  }
  
  .search-container {
    padding: 0 16px;
  }
  
  .search-input {
    padding: 16px 20px 16px 48px;
  }
}
/* ===== MOBILE DENSITY FIX ===== */
@media (max-width: 480px) {

  .page-header h2 {
    font-size: 1.6rem;
  }

  .page-header p {
    font-size: 0.95rem;
  }

  .category-header-large {
    padding: 18px;
  }

  .category-icon-large {
    font-size: 2.5rem;
    margin-bottom: 10px;
  }

  .category-title {
    font-size: 1.3rem;
  }

  .category-stats {
    font-size: 0.8rem;
  }

  .category-details {
    padding: 16px;
  }

  .category-description {
    font-size: 0.9rem;
    margin-bottom: 16px;
  }

  .category-features li {
    font-size: 0.85rem;
  }

  .browse-btn {
    padding: 14px;
    font-size: 0.9rem;
  }
}