/* ============================================================
   BuySell Bangladesh - Main Stylesheet
   Primary: Sky Blue (#0EA5E9), White, Light Gray, Navy Blue
   ============================================================ */

/* --- Google Fonts & Variables --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

:root {
  --primary: #0EA5E9;
  --primary-dark: #0284C7;
  --primary-light: #38BDF8;
  --primary-pale: #E0F2FE;
  --navy: #0F172A;
  --navy-mid: #1E293B;
  --navy-soft: #334155;
  --gray-dark: #475569;
  --gray-mid: #94A3B8;
  --gray-light: #CBD5E1;
  --gray-pale: #F1F5F9;
  --white: #FFFFFF;
  --success: #10B981;
  --warning: #F59E0B;
  --error: #EF4444;
  --glass-bg: rgba(255,255,255,0.85);
  --glass-border: rgba(255,255,255,0.4);
  --shadow-sm: 0 1px 3px rgba(14,165,233,0.08), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(14,165,233,0.12), 0 2px 8px rgba(0,0,0,0.08);
  --shadow-lg: 0 10px 40px rgba(14,165,233,0.18), 0 4px 16px rgba(0,0,0,0.1);
  --shadow-xl: 0 20px 60px rgba(14,165,233,0.22), 0 8px 24px rgba(0,0,0,0.12);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  --font-display: 'Plus Jakarta Sans', sans-serif;
  --font-body: 'Inter', sans-serif;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.18s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  color: var(--navy);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }
button { cursor: pointer; border: none; outline: none; font-family: var(--font-body); }
input, textarea, select { font-family: var(--font-body); outline: none; }

/* --- Loading Screen --- */
#loading-screen {
  position: fixed; inset: 0; background: var(--white);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  z-index: 9999; transition: opacity 0.6s ease, visibility 0.6s ease;
}
#loading-screen.hidden { opacity: 0; visibility: hidden; pointer-events: none; }
.loader-logo {
  font-family: var(--font-display);
  font-size: 2rem; font-weight: 800;
  color: var(--primary);
  margin-bottom: 2rem;
  animation: pulse 1.5s ease-in-out infinite;
}
.loader-logo span { color: var(--navy); }
.loader-bar {
  width: 200px; height: 4px;
  background: var(--gray-light); border-radius: var(--radius-full);
  overflow: hidden;
}
.loader-bar-inner {
  height: 100%; width: 0; background: linear-gradient(90deg, var(--primary), var(--primary-light));
  border-radius: var(--radius-full);
  animation: loading 2s ease forwards;
}
@keyframes loading { to { width: 100%; } }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.6} }

/* --- Navbar --- */
.navbar {
  position: sticky; top: 0; left: 0; right: 0; z-index: 1000;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: 0 2px 20px rgba(14,165,233,0.08);
  transition: var(--transition);
}
.navbar.scrolled {
  background: rgba(255,255,255,0.97);
  box-shadow: var(--shadow-md);
}
.nav-container {
  max-width: 1280px; margin: 0 auto;
  padding: 0 1.5rem;
  display: flex; align-items: center; gap: 1.5rem;
  height: 68px;
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 1.4rem; font-weight: 800;
  color: var(--primary); white-space: nowrap;
  flex-shrink: 0;
}
.nav-logo span { color: var(--navy); }
.nav-search {
  flex: 1; max-width: 500px;
  display: flex; align-items: center;
  background: var(--gray-pale);
  border: 2px solid transparent;
  border-radius: var(--radius-full);
  padding: 0.4rem 0.4rem 0.4rem 1rem;
  transition: var(--transition);
}
.nav-search:focus-within {
  border-color: var(--primary);
  background: var(--white);
  box-shadow: 0 0 0 4px rgba(14,165,233,0.1);
}
.nav-search input {
  flex: 1; background: none; border: none;
  font-size: 0.9rem; color: var(--navy);
}
.nav-search input::placeholder { color: var(--gray-mid); }
.nav-search-btn {
  background: var(--primary); color: white;
  border-radius: var(--radius-full);
  padding: 0.45rem 1rem; font-size: 0.85rem; font-weight: 600;
  display: flex; align-items: center; gap: 0.4rem;
  transition: var(--transition);
}
.nav-search-btn:hover { background: var(--primary-dark); transform: scale(1.03); }
.nav-links {
  display: flex; align-items: center; gap: 0.25rem; flex-shrink: 0;
}
.nav-link {
  padding: 0.5rem 0.85rem;
  font-size: 0.9rem; font-weight: 500;
  color: var(--navy-soft);
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
  white-space: nowrap;
}
.nav-link:hover, .nav-link.active {
  color: var(--primary); background: var(--primary-pale);
}
.nav-sell-btn {
  background: var(--primary); color: white;
  padding: 0.55rem 1.2rem;
  border-radius: var(--radius-full);
  font-size: 0.9rem; font-weight: 700;
  display: flex; align-items: center; gap: 0.4rem;
  transition: var(--transition);
  box-shadow: 0 4px 14px rgba(14,165,233,0.4);
}
.nav-sell-btn:hover {
  background: var(--primary-dark); transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(14,165,233,0.5);
}
.nav-icon-btn {
  width: 40px; height: 40px;
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  color: var(--gray-dark); font-size: 1.1rem;
  transition: var(--transition-fast);
  position: relative;
}
.nav-icon-btn:hover { background: var(--primary-pale); color: var(--primary); }
.nav-badge {
  position: absolute; top: 4px; right: 4px;
  width: 16px; height: 16px;
  background: var(--error); color: white;
  border-radius: var(--radius-full);
  font-size: 0.6rem; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.hamburger {
  display: none; flex-direction: column; gap: 5px;
  padding: 0.5rem; cursor: pointer; background: none; border: none;
}
.hamburger span {
  display: block; width: 24px; height: 2px;
  background: var(--navy); border-radius: 2px;
  transition: var(--transition);
}
.mobile-menu {
  display: none; position: fixed; top: 68px; left: 0; right: 0;
  background: var(--white); border-bottom: 1px solid var(--gray-light);
  padding: 1rem 1.5rem; z-index: 999;
  box-shadow: var(--shadow-md);
  flex-direction: column; gap: 0.5rem;
}
.mobile-menu.open { display: flex; }
.mobile-menu .nav-link { display: block; padding: 0.75rem 1rem; }

/* --- Hero Section --- */
.hero {
  min-height: 88vh;
  background: linear-gradient(135deg, #0F172A 0%, #0EA5E9 50%, #0284C7 100%);
  position: relative; overflow: hidden;
  display: flex; align-items: center; justify-content: center;
}
.hero-bg-shapes { position: absolute; inset: 0; pointer-events: none; }
.hero-shape {
  position: absolute; border-radius: 50%;
  background: rgba(255,255,255,0.05);
  animation: float 6s ease-in-out infinite;
}
.hero-shape:nth-child(1) { width:400px;height:400px;top:-100px;right:-100px;animation-delay:0s; }
.hero-shape:nth-child(2) { width:250px;height:250px;bottom:50px;left:-50px;animation-delay:2s; }
.hero-shape:nth-child(3) { width:150px;height:150px;top:30%;left:20%;animation-delay:4s; }
.hero-shape:nth-child(4) { width:80px;height:80px;top:20%;right:25%;animation-delay:1s; }
@keyframes float {
  0%,100%{transform:translateY(0) rotate(0deg)}
  50%{transform:translateY(-20px) rotate(10deg)}
}
.hero-content {
  position: relative; z-index: 1;
  text-align: center; padding: 2rem 1.5rem;
  max-width: 800px; width: 100%;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 0.5rem;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: var(--radius-full);
  padding: 0.4rem 1rem; color: white;
  font-size: 0.85rem; font-weight: 500;
  margin-bottom: 1.5rem;
  animation: fadeInDown 0.6s ease;
}
.hero-badge i { color: var(--warning); }
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800; color: white;
  line-height: 1.15; margin-bottom: 1rem;
  animation: fadeInUp 0.7s ease 0.1s both;
}
.hero-title .highlight {
  background: linear-gradient(135deg, #38BDF8, #FDE68A);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  color: rgba(255,255,255,0.8);
  font-size: 1.1rem; margin-bottom: 2.5rem;
  animation: fadeInUp 0.7s ease 0.2s both;
}
.hero-search-box {
  background: white; border-radius: var(--radius-xl);
  padding: 0.6rem 0.6rem 0.6rem 1.5rem;
  display: flex; gap: 0.5rem; align-items: center;
  box-shadow: var(--shadow-xl);
  margin-bottom: 1.5rem;
  animation: fadeInUp 0.7s ease 0.3s both;
  transition: var(--transition);
}
.hero-search-box:focus-within { box-shadow: 0 20px 60px rgba(14,165,233,0.35); }
.hero-search-box input {
  flex: 1; border: none; background: none;
  font-size: 1rem; color: var(--navy);
  min-width: 0;
}
.hero-search-box input::placeholder { color: var(--gray-mid); }
.hero-search-select {
  border: none; background: var(--gray-pale);
  border-radius: var(--radius-md); padding: 0.6rem 0.8rem;
  font-size: 0.85rem; color: var(--navy-soft);
  cursor: pointer;
}
.hero-search-btn {
  background: var(--primary); color: white;
  border-radius: var(--radius-lg);
  padding: 0.75rem 2rem;
  font-size: 1rem; font-weight: 700;
  display: flex; align-items: center; gap: 0.5rem;
  transition: var(--transition);
  box-shadow: 0 4px 14px rgba(14,165,233,0.5);
  white-space: nowrap;
}
.hero-search-btn:hover { background: var(--primary-dark); transform: scale(1.03); }
.hero-quick-cats {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 0.6rem;
  animation: fadeInUp 0.7s ease 0.4s both;
}
.quick-cat {
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: var(--radius-full);
  padding: 0.4rem 1rem; color: white;
  font-size: 0.82rem; font-weight: 500;
  transition: var(--transition-fast);
  cursor: pointer;
}
.quick-cat:hover {
  background: rgba(255,255,255,0.25);
  transform: translateY(-2px);
}
.hero-stats {
  display: flex; justify-content: center; gap: 3rem;
  margin-top: 3rem; padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.15);
  animation: fadeInUp 0.7s ease 0.5s both;
}
.hero-stat { text-align: center; color: white; }
.hero-stat-num {
  font-family: var(--font-display);
  font-size: 1.8rem; font-weight: 800;
  display: block;
}
.hero-stat-label { font-size: 0.82rem; opacity: 0.7; }
@keyframes fadeInDown { from{opacity:0;transform:translateY(-20px)} to{opacity:1;transform:translateY(0)} }
@keyframes fadeInUp { from{opacity:0;transform:translateY(30px)} to{opacity:1;transform:translateY(0)} }

/* --- Section Base --- */
.section { padding: 5rem 1.5rem; }
.section-alt { background: var(--gray-pale); }
.container { max-width: 1280px; margin: 0 auto; }
.section-header { text-align: center; margin-bottom: 3rem; }
.section-eyebrow {
  display: inline-flex; align-items: center; gap: 0.5rem;
  color: var(--primary); font-size: 0.85rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.08em;
  margin-bottom: 0.75rem;
}
.section-eyebrow::before, .section-eyebrow::after {
  content: ''; display: block; width: 30px; height: 2px;
  background: var(--primary); border-radius: 2px;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.5vw, 2.5rem);
  font-weight: 800; color: var(--navy);
  line-height: 1.2; margin-bottom: 0.75rem;
}
.section-subtitle { color: var(--gray-dark); font-size: 1.05rem; max-width: 600px; margin: 0 auto; }

/* --- Category Grid --- */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 1rem;
}
.cat-card {
  background: white;
  border: 2px solid var(--gray-light);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1rem;
  text-align: center; cursor: pointer;
  transition: var(--transition);
  animation: fadeInUp 0.5s ease both;
  position: relative; overflow: hidden;
}
.cat-card::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, var(--primary-pale), transparent);
  opacity: 0; transition: var(--transition);
}
.cat-card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.cat-card:hover::before { opacity: 1; }
.cat-icon {
  width: 56px; height: 56px;
  background: var(--primary-pale);
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 0.75rem;
  font-size: 1.5rem; color: var(--primary);
  transition: var(--transition);
  position: relative; z-index: 1;
}
.cat-card:hover .cat-icon {
  background: var(--primary); color: white;
  transform: scale(1.1) rotate(-5deg);
}
.cat-name {
  font-size: 0.85rem; font-weight: 600;
  color: var(--navy-soft); position: relative; z-index: 1;
}
.cat-count { font-size: 0.75rem; color: var(--gray-mid); margin-top: 0.2rem; }

/* --- Product Cards --- */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
}
.product-card {
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--gray-light);
  transition: var(--transition);
  animation: fadeInUp 0.5s ease both;
  position: relative;
}
.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.product-img-wrap {
  position: relative; overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--gray-pale);
}
.product-img-wrap img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.5s ease;
}
.product-card:hover .product-img-wrap img { transform: scale(1.06); }
.product-badge {
  position: absolute; top: 0.75rem; left: 0.75rem;
  background: var(--primary); color: white;
  font-size: 0.72rem; font-weight: 700;
  padding: 0.25rem 0.6rem; border-radius: var(--radius-full);
  text-transform: uppercase; letter-spacing: 0.04em;
}
.product-badge.featured { background: var(--warning); }
.product-badge.new { background: var(--success); }
.product-wishlist {
  position: absolute; top: 0.75rem; right: 0.75rem;
  width: 34px; height: 34px;
  background: white; border-radius: var(--radius-full);
  display: flex; align-items: center; justify-content: center;
  color: var(--gray-mid); font-size: 0.95rem;
  box-shadow: var(--shadow-sm); transition: var(--transition-fast);
  cursor: pointer;
}
.product-wishlist:hover, .product-wishlist.active {
  color: var(--error); transform: scale(1.15);
}
.product-body { padding: 1rem; }
.product-price {
  font-family: var(--font-display);
  font-size: 1.25rem; font-weight: 800;
  color: var(--primary); margin-bottom: 0.4rem;
}
.product-name {
  font-size: 0.95rem; font-weight: 600;
  color: var(--navy); margin-bottom: 0.5rem;
  display: -webkit-box; -webkit-line-clamp: 2;
  -webkit-box-orient: vertical; overflow: hidden;
}
.product-meta {
  display: flex; align-items: center; gap: 0.5rem;
  font-size: 0.78rem; color: var(--gray-mid); flex-wrap: wrap;
}
.product-meta i { font-size: 0.7rem; }
.product-footer {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.75rem 1rem;
  border-top: 1px solid var(--gray-pale);
  background: var(--gray-pale);
}
.product-seller { display: flex; align-items: center; gap: 0.5rem; }
.seller-avatar {
  width: 28px; height: 28px; border-radius: var(--radius-full);
  background: var(--primary); color: white;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.7rem; font-weight: 700;
}
.seller-name { font-size: 0.8rem; font-weight: 500; color: var(--navy-soft); }
.product-date { font-size: 0.75rem; color: var(--gray-mid); }

/* --- Location Grid --- */
.locations-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1rem;
}
.location-card {
  border-radius: var(--radius-lg); overflow: hidden;
  position: relative; cursor: pointer;
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--primary), var(--navy));
  transition: var(--transition);
}
.location-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.location-card-img {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, var(--primary-dark), var(--navy));
  display: flex; align-items: center; justify-content: center;
  font-size: 3rem; opacity: 0.3;
}
.location-card-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(15,23,42,0.85), transparent);
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: 1rem;
}
.location-name { color: white; font-weight: 700; font-size: 1rem; }
.location-count { color: rgba(255,255,255,0.7); font-size: 0.8rem; }

/* --- Stats --- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
}
.stat-card {
  background: white; border-radius: var(--radius-xl);
  padding: 2rem; text-align: center;
  box-shadow: var(--shadow-sm); transition: var(--transition);
}
.stat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.stat-icon {
  width: 60px; height: 60px;
  background: var(--primary-pale); border-radius: var(--radius-lg);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; color: var(--primary);
  margin: 0 auto 1rem;
}
.stat-num {
  font-family: var(--font-display);
  font-size: 2.2rem; font-weight: 900;
  color: var(--navy); display: block;
}
.stat-label { color: var(--gray-dark); font-size: 0.9rem; margin-top: 0.25rem; }

/* --- Testimonials --- */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}
.testimonial-card {
  background: white; border-radius: var(--radius-xl);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm); transition: var(--transition);
  border: 1px solid var(--gray-light);
}
.testimonial-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.testimonial-stars { color: var(--warning); margin-bottom: 1rem; font-size: 0.9rem; }
.testimonial-text { color: var(--gray-dark); font-size: 0.95rem; line-height: 1.7; margin-bottom: 1.25rem; font-style: italic; }
.testimonial-author { display: flex; align-items: center; gap: 0.75rem; }
.testimonial-avatar {
  width: 44px; height: 44px; border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white; display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 1rem;
}
.testimonial-name { font-weight: 600; font-size: 0.9rem; }
.testimonial-role { font-size: 0.8rem; color: var(--gray-mid); }

/* --- CTA Section --- */
.cta-section {
  background: linear-gradient(135deg, var(--navy) 0%, var(--primary-dark) 100%);
  padding: 5rem 1.5rem; text-align: center; position: relative; overflow: hidden;
}
.cta-section::before {
  content: ''; position: absolute; top: -50%; left: -20%;
  width: 600px; height: 600px; border-radius: 50%;
  background: rgba(255,255,255,0.04);
}
.cta-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 3rem); font-weight: 800;
  color: white; margin-bottom: 1rem;
}
.cta-subtitle { color: rgba(255,255,255,0.7); font-size: 1.1rem; margin-bottom: 2rem; }
.cta-buttons { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.8rem 2rem; border-radius: var(--radius-full);
  font-size: 0.95rem; font-weight: 700;
  transition: var(--transition);
  cursor: pointer;
}
.btn-primary {
  background: var(--primary); color: white;
  box-shadow: 0 4px 14px rgba(14,165,233,0.5);
}
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(14,165,233,0.6); }
.btn-white { background: white; color: var(--primary); }
.btn-white:hover { background: var(--primary-pale); transform: translateY(-2px); }
.btn-outline { background: transparent; color: white; border: 2px solid rgba(255,255,255,0.4); }
.btn-outline:hover { background: rgba(255,255,255,0.1); transform: translateY(-2px); }
.btn-lg { padding: 1rem 2.5rem; font-size: 1rem; }
.btn-sm { padding: 0.5rem 1.2rem; font-size: 0.85rem; }

/* --- Payment Badges --- */
.payment-badges {
  display: flex; align-items: center; justify-content: center; gap: 1.5rem;
  flex-wrap: wrap;
}
.payment-badge {
  background: white; border-radius: var(--radius-md);
  padding: 0.5rem 1.25rem;
  font-weight: 800; font-size: 0.95rem;
  box-shadow: var(--shadow-sm);
}
.payment-badge.bkash { color: #E2136E; }
.payment-badge.nagad { color: #F37021; }
.payment-badge.rocket { color: #8B2FC9; }

/* --- Trust Features --- */
.trust-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}
.trust-card {
  text-align: center; padding: 2rem 1.25rem;
}
.trust-icon {
  width: 64px; height: 64px;
  background: linear-gradient(135deg, var(--primary-pale), #DBEAFE);
  border-radius: var(--radius-lg);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem; color: var(--primary);
  margin: 0 auto 1rem;
}
.trust-title { font-weight: 700; font-size: 1rem; color: var(--navy); margin-bottom: 0.5rem; }
.trust-desc { font-size: 0.88rem; color: var(--gray-dark); line-height: 1.6; }

/* --- FAQ --- */
.faq-list { max-width: 700px; margin: 0 auto; display: flex; flex-direction: column; gap: 0.75rem; }
.faq-item {
  background: white; border-radius: var(--radius-lg);
  border: 1px solid var(--gray-light);
  overflow: hidden; transition: var(--transition);
}
.faq-item.open { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(14,165,233,0.1); }
.faq-question {
  display: flex; justify-content: space-between; align-items: center;
  padding: 1.25rem 1.5rem; cursor: pointer;
  font-weight: 600; color: var(--navy); font-size: 0.95rem;
}
.faq-question i { color: var(--primary); transition: transform 0.3s ease; }
.faq-item.open .faq-question i { transform: rotate(180deg); }
.faq-answer {
  padding: 0 1.5rem;
  max-height: 0; overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  color: var(--gray-dark); font-size: 0.9rem; line-height: 1.7;
}
.faq-item.open .faq-answer { max-height: 200px; padding: 0 1.5rem 1.25rem; }

/* --- Newsletter --- */
.newsletter-form {
  display: flex; gap: 0.75rem; max-width: 480px; margin: 0 auto;
}
.newsletter-form input {
  flex: 1; padding: 0.85rem 1.25rem;
  border: 2px solid var(--gray-light);
  border-radius: var(--radius-full); font-size: 0.95rem;
  background: white; color: var(--navy);
  transition: var(--transition);
}
.newsletter-form input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(14,165,233,0.1); }

/* --- Footer --- */
.footer {
  background: var(--navy); color: rgba(255,255,255,0.7);
  padding: 4rem 1.5rem 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem; max-width: 1280px; margin: 0 auto 3rem;
}
.footer-brand-logo {
  font-family: var(--font-display);
  font-size: 1.5rem; font-weight: 800;
  color: white; margin-bottom: 1rem;
}
.footer-brand-logo span { color: var(--primary-light); }
.footer-brand-desc { font-size: 0.88rem; line-height: 1.7; margin-bottom: 1.5rem; }
.footer-socials { display: flex; gap: 0.75rem; }
.footer-social {
  width: 38px; height: 38px;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.08);
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.7); font-size: 0.95rem;
  transition: var(--transition-fast);
}
.footer-social:hover { background: var(--primary); color: white; }
.footer-col-title { color: white; font-weight: 700; font-size: 0.95rem; margin-bottom: 1.25rem; }
.footer-links { display: flex; flex-direction: column; gap: 0.65rem; }
.footer-links a {
  font-size: 0.88rem; color: rgba(255,255,255,0.6);
  transition: var(--transition-fast);
}
.footer-links a:hover { color: var(--primary-light); padding-left: 4px; }
.footer-bottom {
  max-width: 1280px; margin: 0 auto;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 1rem; font-size: 0.85rem;
}

/* --- Back to Top --- */
#back-to-top {
  position: fixed; bottom: 2rem; right: 2rem; z-index: 900;
  width: 46px; height: 46px;
  background: var(--primary); color: white;
  border-radius: var(--radius-full);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  box-shadow: 0 4px 14px rgba(14,165,233,0.5);
  transition: var(--transition);
  opacity: 0; pointer-events: none; transform: translateY(10px);
  cursor: pointer;
}
#back-to-top.visible { opacity: 1; pointer-events: all; transform: translateY(0); }
#back-to-top:hover { background: var(--primary-dark); transform: translateY(-3px); }

/* --- Page Hero --- */
.page-hero {
  background: linear-gradient(135deg, var(--navy) 0%, var(--primary-dark) 100%);
  padding: 4rem 1.5rem; text-align: center;
}
.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 800;
  color: white; margin-bottom: 0.5rem;
}
.page-hero p { color: rgba(255,255,255,0.75); font-size: 1rem; }
.breadcrumb {
  display: flex; align-items: center; justify-content: center;
  gap: 0.5rem; color: rgba(255,255,255,0.5);
  font-size: 0.85rem; margin-bottom: 1rem;
}
.breadcrumb a { color: var(--primary-light); }
.breadcrumb i { font-size: 0.65rem; }

/* --- Products Page --- */
.products-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 2rem; max-width: 1280px;
  margin: 0 auto; padding: 2.5rem 1.5rem;
}
.sidebar {
  position: sticky; top: 88px;
  height: fit-content;
}
.sidebar-card {
  background: white; border-radius: var(--radius-lg);
  border: 1px solid var(--gray-light);
  padding: 1.5rem; margin-bottom: 1rem;
}
.sidebar-title {
  font-weight: 700; font-size: 0.95rem; color: var(--navy);
  margin-bottom: 1rem; padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--primary-pale);
  display: flex; align-items: center; justify-content: space-between;
}
.sidebar-title .clear { font-size: 0.78rem; color: var(--primary); cursor: pointer; font-weight: 500; }
.filter-option {
  display: flex; align-items: center; gap: 0.6rem;
  padding: 0.5rem 0; cursor: pointer; border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}
.filter-option:hover { color: var(--primary); padding-left: 4px; }
.filter-option input[type="checkbox"],
.filter-option input[type="radio"] {
  accent-color: var(--primary); width: 16px; height: 16px;
}
.filter-label { font-size: 0.88rem; color: var(--navy-soft); }
.filter-count { font-size: 0.75rem; color: var(--gray-mid); margin-left: auto; }
.price-range-inputs {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem;
}
.price-input {
  padding: 0.5rem 0.75rem;
  border: 2px solid var(--gray-light); border-radius: var(--radius-md);
  font-size: 0.85rem; color: var(--navy); width: 100%;
  transition: var(--transition-fast);
}
.price-input:focus { border-color: var(--primary); }
.products-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 1.25rem; flex-wrap: wrap; gap: 0.75rem;
}
.products-count { font-size: 0.9rem; color: var(--gray-dark); }
.products-count span { font-weight: 700; color: var(--navy); }
.products-sort {
  padding: 0.5rem 1rem;
  border: 2px solid var(--gray-light); border-radius: var(--radius-md);
  font-size: 0.85rem; color: var(--navy);
  background: white; cursor: pointer;
  transition: var(--transition-fast);
}
.products-sort:focus { border-color: var(--primary); }
.view-toggle { display: flex; gap: 0.25rem; }
.view-btn {
  width: 36px; height: 36px;
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  color: var(--gray-mid); font-size: 0.9rem;
  background: var(--gray-pale); transition: var(--transition-fast);
}
.view-btn.active, .view-btn:hover { background: var(--primary); color: white; }

/* --- Product Detail --- */
.product-detail { max-width: 1280px; margin: 0 auto; padding: 2.5rem 1.5rem; }
.product-detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; }
.product-gallery { position: sticky; top: 88px; height: fit-content; }
.gallery-main {
  border-radius: var(--radius-lg); overflow: hidden;
  aspect-ratio: 4/3; background: var(--gray-pale);
  margin-bottom: 0.75rem;
}
.gallery-main img { width: 100%; height: 100%; object-fit: cover; }
.gallery-thumbs { display: flex; gap: 0.75rem; }
.gallery-thumb {
  width: 80px; height: 80px; border-radius: var(--radius-md);
  overflow: hidden; cursor: pointer; border: 2px solid transparent;
  transition: var(--transition-fast);
}
.gallery-thumb:hover, .gallery-thumb.active { border-color: var(--primary); }
.gallery-thumb img { width: 100%; height: 100%; object-fit: cover; }
.product-detail-info { padding: 1rem 0; }
.product-detail-price {
  font-family: var(--font-display);
  font-size: 2.2rem; font-weight: 900; color: var(--primary);
  margin-bottom: 0.75rem;
}
.product-detail-title {
  font-family: var(--font-display);
  font-size: 1.5rem; font-weight: 700; color: var(--navy);
  margin-bottom: 1.25rem; line-height: 1.3;
}
.product-info-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 0.75rem; margin-bottom: 1.5rem;
}
.product-info-item {
  background: var(--gray-pale); border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
}
.product-info-label { font-size: 0.75rem; color: var(--gray-mid); text-transform: uppercase; letter-spacing: 0.05em; }
.product-info-value { font-size: 0.9rem; font-weight: 600; color: var(--navy); margin-top: 0.2rem; }
.product-detail-desc {
  color: var(--gray-dark); font-size: 0.95rem; line-height: 1.8;
  margin-bottom: 1.5rem;
}
.seller-card {
  background: var(--gray-pale); border-radius: var(--radius-lg);
  padding: 1.25rem; margin-bottom: 1.25rem;
}
.seller-card-header { display: flex; align-items: center; gap: 1rem; margin-bottom: 1rem; }
.seller-card-avatar {
  width: 52px; height: 52px; border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white; display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 1.2rem;
}
.seller-card-name { font-weight: 700; font-size: 1rem; color: var(--navy); }
.seller-card-meta { font-size: 0.82rem; color: var(--gray-mid); }
.seller-card-stats { display: flex; gap: 1.5rem; }
.seller-stat { text-align: center; }
.seller-stat-num { font-weight: 700; color: var(--navy); font-size: 1rem; }
.seller-stat-label { font-size: 0.75rem; color: var(--gray-mid); }
.contact-buttons { display: flex; gap: 0.75rem; margin-bottom: 1rem; }
.contact-btn {
  flex: 1; padding: 0.85rem; border-radius: var(--radius-lg);
  font-weight: 700; font-size: 0.9rem;
  display: flex; align-items: center; justify-content: center; gap: 0.5rem;
  transition: var(--transition); cursor: pointer;
}
.contact-btn-primary { background: var(--primary); color: white; }
.contact-btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); }
.contact-btn-outline { background: white; color: var(--primary); border: 2px solid var(--primary); }
.contact-btn-outline:hover { background: var(--primary-pale); }

/* --- Sell Form --- */
.sell-container { max-width: 780px; margin: 0 auto; padding: 3rem 1.5rem; }
.progress-steps {
  display: flex; justify-content: center; gap: 0;
  margin-bottom: 3rem; position: relative;
}
.progress-steps::before {
  content: ''; position: absolute; top: 20px; left: 15%; right: 15%;
  height: 2px; background: var(--gray-light); z-index: 0;
}
.step {
  display: flex; flex-direction: column; align-items: center;
  gap: 0.5rem; flex: 1; position: relative; z-index: 1;
}
.step-circle {
  width: 42px; height: 42px; border-radius: var(--radius-full);
  background: var(--gray-light); color: var(--gray-mid);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 0.9rem;
  transition: var(--transition);
}
.step.active .step-circle { background: var(--primary); color: white; box-shadow: 0 0 0 4px rgba(14,165,233,0.2); }
.step.done .step-circle { background: var(--success); color: white; }
.step-label { font-size: 0.78rem; font-weight: 600; color: var(--gray-mid); text-align: center; }
.step.active .step-label { color: var(--primary); }
.step.done .step-label { color: var(--success); }
.form-step { display: none; }
.form-step.active { display: block; animation: fadeInUp 0.4s ease; }
.form-card {
  background: white; border-radius: var(--radius-xl);
  border: 1px solid var(--gray-light); padding: 2rem;
  box-shadow: var(--shadow-sm); margin-bottom: 1.25rem;
}
.form-title {
  font-family: var(--font-display);
  font-size: 1.2rem; font-weight: 700; color: var(--navy);
  margin-bottom: 1.5rem; display: flex; align-items: center; gap: 0.75rem;
}
.form-title i { color: var(--primary); }
.form-group { margin-bottom: 1.25rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-label {
  display: block; font-size: 0.88rem; font-weight: 600;
  color: var(--navy-soft); margin-bottom: 0.5rem;
}
.form-label span { color: var(--error); }
.form-input {
  width: 100%; padding: 0.75rem 1rem;
  border: 2px solid var(--gray-light); border-radius: var(--radius-md);
  font-size: 0.9rem; color: var(--navy);
  background: white; transition: var(--transition);
}
.form-input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(14,165,233,0.1); }
.form-input::placeholder { color: var(--gray-mid); }
.form-input.error { border-color: var(--error); }
textarea.form-input { resize: vertical; min-height: 120px; }
select.form-input { cursor: pointer; }
.image-upload {
  border: 2px dashed var(--gray-light);
  border-radius: var(--radius-lg); padding: 2.5rem;
  text-align: center; cursor: pointer;
  transition: var(--transition);
}
.image-upload:hover { border-color: var(--primary); background: var(--primary-pale); }
.image-upload i { font-size: 2.5rem; color: var(--primary-light); margin-bottom: 0.75rem; }
.image-upload p { font-size: 0.9rem; color: var(--gray-dark); }
.image-upload span { font-size: 0.8rem; color: var(--gray-mid); }
.form-nav {
  display: flex; justify-content: space-between; gap: 1rem;
  margin-top: 1.5rem;
}
.form-nav .btn { min-width: 140px; justify-content: center; }
.success-animation {
  text-align: center; padding: 4rem 2rem;
  display: none;
}
.success-animation.show { display: block; animation: fadeInUp 0.6s ease; }
.success-checkmark {
  width: 90px; height: 90px;
  background: linear-gradient(135deg, var(--success), #34D399);
  border-radius: var(--radius-full);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 1.5rem;
  font-size: 2.5rem; color: white;
  animation: successPop 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
@keyframes successPop { 0%{transform:scale(0)} 80%{transform:scale(1.1)} 100%{transform:scale(1)} }
.success-title {
  font-family: var(--font-display);
  font-size: 1.8rem; font-weight: 800;
  color: var(--navy); margin-bottom: 0.75rem;
}
.success-message { color: var(--gray-dark); font-size: 1rem; line-height: 1.7; max-width: 400px; margin: 0 auto 2rem; }

/* --- Categories Page --- */
.categories-page-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.25rem;
}
.category-page-card {
  background: white; border-radius: var(--radius-xl);
  border: 1px solid var(--gray-light);
  padding: 2rem 1.5rem; text-align: center;
  cursor: pointer; transition: var(--transition);
  text-decoration: none; display: block;
}
.category-page-card:hover {
  border-color: var(--primary);
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  background: var(--primary-pale);
}
.category-page-icon {
  width: 72px; height: 72px;
  background: var(--primary-pale); border-radius: var(--radius-lg);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.8rem; color: var(--primary);
  margin: 0 auto 1rem; transition: var(--transition);
}
.category-page-card:hover .category-page-icon { background: var(--primary); color: white; transform: scale(1.1); }
.category-page-name { font-weight: 700; font-size: 1.05rem; color: var(--navy); margin-bottom: 0.3rem; }
.category-page-count { font-size: 0.85rem; color: var(--gray-mid); }

/* --- About Page --- */
.about-hero { background: linear-gradient(135deg, var(--navy), var(--primary-dark)); padding: 5rem 1.5rem; }
.about-mission-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.about-mission-card {
  background: white; border-radius: var(--radius-xl);
  padding: 2rem; box-shadow: var(--shadow-sm);
  border-top: 4px solid var(--primary);
}
.about-mission-card h3 { font-family: var(--font-display); font-size: 1.2rem; font-weight: 700; margin-bottom: 0.75rem; color: var(--navy); }
.about-mission-card p { color: var(--gray-dark); font-size: 0.95rem; line-height: 1.7; }
.team-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 1.5rem; }
.team-card { text-align: center; }
.team-avatar {
  width: 90px; height: 90px; border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--primary), var(--navy));
  color: white; display: flex; align-items: center; justify-content: center;
  font-size: 2rem; font-weight: 700; margin: 0 auto 1rem;
}
.team-name { font-weight: 700; color: var(--navy); }
.team-role { font-size: 0.85rem; color: var(--gray-mid); }

/* --- Contact Page --- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; max-width: 1000px; margin: 0 auto; }
.contact-info-item { display: flex; gap: 1rem; align-items: flex-start; margin-bottom: 1.5rem; }
.contact-info-icon {
  width: 46px; height: 46px; flex-shrink: 0;
  background: var(--primary-pale); border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  color: var(--primary); font-size: 1.1rem;
}
.contact-info-label { font-weight: 700; font-size: 0.9rem; color: var(--navy); margin-bottom: 0.2rem; }
.contact-info-value { font-size: 0.88rem; color: var(--gray-dark); }
.map-placeholder {
  background: linear-gradient(135deg, var(--primary-pale), #DBEAFE);
  border-radius: var(--radius-xl);
  height: 250px; display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  color: var(--primary); margin-top: 1.5rem;
  border: 2px dashed var(--primary-light);
}
.map-placeholder i { font-size: 3rem; margin-bottom: 0.75rem; opacity: 0.6; }
.map-placeholder p { font-size: 0.9rem; color: var(--gray-dark); }

/* --- Scroll Animation --- */
.reveal {
  opacity: 0; transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* --- Chip Tags --- */
.chips { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.chip {
  background: var(--primary-pale); color: var(--primary);
  border-radius: var(--radius-full); padding: 0.3rem 0.85rem;
  font-size: 0.8rem; font-weight: 600;
}
.chip.condition-new { background: #D1FAE5; color: var(--success); }
.chip.condition-used { background: #FEF3C7; color: var(--warning); }

/* --- Search Suggestions --- */
.search-suggestions {
  position: absolute; top: calc(100% + 8px); left: 0; right: 0;
  background: white; border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg); border: 1px solid var(--gray-light);
  z-index: 100; overflow: hidden;
  display: none;
}
.search-suggestions.show { display: block; }
.suggestion-item {
  padding: 0.75rem 1.25rem; cursor: pointer;
  display: flex; align-items: center; gap: 0.75rem;
  font-size: 0.9rem; color: var(--navy-soft);
  transition: var(--transition-fast);
}
.suggestion-item:hover { background: var(--primary-pale); color: var(--primary); }
.suggestion-item i { color: var(--gray-mid); font-size: 0.85rem; }

/* --- Responsive --- */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .products-layout { grid-template-columns: 240px 1fr; }
  .product-detail-grid { grid-template-columns: 1fr; }
  .product-gallery { position: static; }
}
@media (max-width: 768px) {
  .nav-links, .nav-search { display: none; }
  .hamburger { display: flex; }
  .products-layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .form-row { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .about-mission-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .hero-stats { gap: 1.5rem; }
  .hero-search-box { flex-wrap: wrap; }
  .hero-search-select { display: none; }
  .products-grid { grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); }
}
@media (max-width: 480px) {
  .section { padding: 3rem 1rem; }
  .categories-grid { grid-template-columns: repeat(3, 1fr); }
  .products-grid { grid-template-columns: 1fr 1fr; gap: 0.75rem; }
  .hero-stats { flex-direction: column; gap: 1rem; }
  .cta-buttons { flex-direction: column; align-items: center; }
}