:root {
  --bg: #050505;
  --bg-card: rgba(20, 20, 20, 0.6);
  --bg-card-hover: rgba(30, 30, 30, 0.8);
  --accent: #ff6600;
  --accent-glow: rgba(255, 102, 0, 0.4);
  --accent-blue: #00e5ff;
  --accent-blue-glow: rgba(0, 229, 255, 0.4);
  --text: #ffffff;
  --text-muted: #a0a0a0;
  --border: rgba(255, 255, 255, 0.05);
  --border-hover: rgba(255, 102, 0, 0.3);
  --font-family: 'Rajdhani', sans-serif;
  --font-display: 'Orbitron', sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(5, 5, 5, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  padding: 1rem 0;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo img {
  height: 32px;
  object-fit: contain;
}

.logo span {
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: 2px;
  background: linear-gradient(90deg, #fff, var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: color 0.3s ease;
}

.nav-links a:hover {
  color: var(--accent);
}

.nav-links a.hub-btn {
  background: linear-gradient(135deg, var(--accent) 0%, #ff3300 100%);
  padding: 0.6rem 1.2rem;
  border-radius: 8px;
  font-weight: 700;
  box-shadow: 0 0 15px var(--accent-glow);
  transition: all 0.3s ease;
}

.nav-links a.hub-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 25px var(--accent-glow);
  color: #fff;
}

/* Hero Section */
.hero {
  position: relative;
  padding: 8rem 0 3rem 0;
  background: radial-gradient(circle at center, rgba(255, 102, 0, 0.08) 0%, transparent 70%);
  text-align: center;
  border-bottom: 1px solid var(--border);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 900;
  line-height: 1.1;
  text-transform: uppercase;
  margin-bottom: 1rem;
  letter-spacing: 2px;
}

.hero h1 span {
  background: linear-gradient(135deg, var(--accent) 0%, #ff3300 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 0 30px var(--accent-glow);
}

.hero p {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 650px;
  margin: 0 auto;
}

.badge {
  display: inline-block;
  background: rgba(255, 102, 0, 0.1);
  border: 1px solid var(--accent);
  color: var(--accent);
  padding: 0.4rem 1rem;
  border-radius: 50px;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 1rem;
  box-shadow: 0 0 10px rgba(255, 102, 0, 0.2);
}

/* Tabs Container */
.tabs-container {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin: 3rem 0;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.5rem;
}

.tab-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  cursor: pointer;
  padding: 0.5rem 1rem;
  position: relative;
  transition: color 0.3s ease;
}

.tab-btn:hover, .tab-btn.active {
  color: #fff;
}

.tab-btn.active .tab-indicator {
  position: absolute;
  bottom: -0.6rem;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
}

.tab-btn[data-tab="used"].active .tab-indicator {
  background: var(--accent-blue);
  box-shadow: 0 0 10px var(--accent-blue-glow);
}

/* Marketplace Section & Layout */
.marketplace-section {
  padding: 0 0 6rem 0;
}

.marketplace-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 2rem;
}

/* Sidebar Styling */
.sidebar {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 1.5rem;
  border-radius: 16px;
  height: fit-content;
  backdrop-filter: blur(10px);
}

.sidebar-block {
  margin-bottom: 1.5rem;
}

.sidebar-block:last-child {
  margin-bottom: 0;
}

.sidebar-block h3 {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.sidebar-block input, .sidebar-block select {
  width: 100%;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.8rem;
  border-radius: 8px;
  font-family: var(--font-family);
  font-size: 1rem;
  outline: none;
  transition: border-color 0.2s;
}

.sidebar-block input:focus, .sidebar-block select:focus {
  border-color: var(--accent);
}

/* Checkbox container */
.checkbox-container {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  cursor: pointer;
  font-weight: 600;
  font-size: 1rem;
  user-select: none;
}

.checkbox-container input {
  display: none;
}

.checkmark {
  width: 18px;
  height: 18px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: rgba(0,0,0,0.4);
  display: inline-block;
  position: relative;
  transition: all 0.2s;
}

.checkbox-container input:checked ~ .checkmark {
  background: var(--accent);
  border-color: var(--accent);
}

.checkbox-container input:checked ~ .checkmark::after {
  content: '';
  position: absolute;
  left: 6px;
  top: 2px;
  width: 4px;
  height: 8px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

/* Grid Layout */
.scooters-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

/* Card Styling */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  backdrop-filter: blur(10px);
  cursor: pointer;
}

.card:hover {
  transform: translateY(-5px);
  border-color: var(--border-hover);
  box-shadow: 0 10px 30px var(--accent-glow);
  background: var(--bg-card-hover);
}

.card.used-card:hover {
  border-color: var(--accent-blue);
  box-shadow: 0 10px 30px var(--accent-blue-glow);
}

.card-img-wrapper {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: #111;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.card:hover .card-img-wrapper img {
  transform: scale(1.05);
}

.card-content {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.card-header h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  height: 2.6em;
}

.origin-badge {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  text-transform: uppercase;
}

.card-specs {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 1.25rem;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  height: 4.8em;
}

.location-badge {
  position: absolute;
  bottom: 0.5rem;
  left: 0.5rem;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--text);
  background: rgba(0, 229, 255, 0.85);
  backdrop-filter: blur(5px);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 700;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
  z-index: 5;
}

.location-badge svg {
  width: 14px;
  height: 14px;
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
  border-top: 1px solid var(--border);
  padding-top: 1rem;
  gap: 1rem;
}

.price {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 900;
  color: #fff;
}

.card.used-card .price {
  color: var(--accent-blue);
}

.buy-btn {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  font-family: var(--font-family);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  font-size: 0.85rem;
  box-shadow: 0 0 10px var(--accent-glow);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.buy-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 20px var(--accent-glow);
}

.card.used-card .buy-btn {
  background: var(--accent-blue);
  box-shadow: 0 0 10px var(--accent-blue-glow);
}

.card.used-card .buy-btn:hover {
  box-shadow: 0 0 20px var(--accent-blue-glow);
}

/* Loader */
.loader {
  grid-column: 1 / -1;
  text-align: center;
  padding: 3rem;
  color: var(--text-muted);
  font-size: 1.2rem;
  font-family: var(--font-display);
  letter-spacing: 1px;
}

/* Full-Page Detail View Layout */
.detail-page-container {
  padding: 7rem 0 6rem 0;
  background: radial-gradient(circle at top right, rgba(255, 102, 0, 0.04) 0%, transparent 60%);
  min-height: 100vh;
}

.back-navigation {
  margin-bottom: 2rem;
}

.back-btn {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-family: var(--font-family);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  cursor: pointer;
  transition: all 0.3s;
}

.back-btn:hover {
  border-color: var(--accent);
  box-shadow: 0 0 15px var(--accent-glow);
  background: rgba(255, 102, 0, 0.05);
}

.detail-page-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.detail-gallery-pane {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 2.5rem;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(10px);
}

.detail-img-wrapper {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.detail-img-wrapper img {
  max-width: 100%;
  max-height: 480px;
  object-fit: contain;
  border-radius: 12px;
}

.location-badge-large {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: rgba(0, 229, 255, 0.9);
  color: #000;
  padding: 0.4rem 1rem;
  border-radius: 6px;
  font-weight: 700;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: 0 5px 15px rgba(0, 229, 255, 0.3);
}

.location-badge-large svg {
  width: 16px;
  height: 16px;
}

/* Detail Info Pane */
.detail-info-pane {
  display: flex;
  flex-direction: column;
}

.detail-meta {
  margin-bottom: 0.5rem;
}

.detail-info-pane h1 {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 900;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 1rem;
  letter-spacing: 1px;
}

.detail-price {
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 900;
  color: var(--accent);
  margin-bottom: 2.5rem;
  text-shadow: 0 0 20px var(--accent-glow);
}

.detail-section {
  margin-bottom: 2rem;
}

.detail-section h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  text-transform: uppercase;
  color: var(--accent);
  letter-spacing: 1px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.5rem;
  margin-bottom: 1rem;
}

.specs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.spec-row {
  display: flex;
  justify-content: space-between;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.02);
  font-size: 1.05rem;
}

.spec-row span {
  color: var(--text-muted);
}

.spec-row strong {
  color: #fff;
}

.description-body {
  font-size: 1.1rem;
  line-height: 1.6;
  color: var(--text-muted);
}

.seller-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
  font-size: 1.05rem;
}

.seller-card p {
  margin-bottom: 0.5rem;
}

.seller-card p:last-child {
  margin-bottom: 0;
}

.detail-actions {
  margin-top: 2rem;
}

.visit-ad-btn {
  background: linear-gradient(135deg, var(--accent) 0%, #ff3300 100%);
  color: #fff;
  border: none;
  width: 100%;
  padding: 1.25rem;
  border-radius: 12px;
  font-family: var(--font-family);
  font-weight: 700;
  font-size: 1.2rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  box-shadow: 0 0 20px var(--accent-glow);
  transition: all 0.3s;
}

.visit-ad-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 0 35px var(--accent-glow);
}

.visit-ad-btn.used-btn {
  background: linear-gradient(135deg, var(--accent-blue) 0%, #0099ff 100%);
  box-shadow: 0 0 20px var(--accent-blue-glow);
  color: #000;
}

.visit-ad-btn.used-btn:hover {
  box-shadow: 0 0 35px var(--accent-blue-glow);
}

/* Footer */
footer {
  background: #020202;
  border-top: 1px solid var(--border);
  padding: 4rem 0 2rem 0;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 2rem;
}

.footer-brand p {
  color: var(--text-muted);
  max-width: 400px;
  margin-top: 1rem;
}

.footer-bottom {
  border-top: 1px solid var(--border);
  width: 100%;
  padding-top: 2rem;
  color: rgba(255, 255, 255, 0.15);
  font-size: 0.8rem;
}

@media (max-width: 900px) {
  .detail-page-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  .marketplace-layout {
    grid-template-columns: 1fr;
  }
  .hero h1 {
    font-size: 2.2rem;
  }
  .nav-links {
    display: none;
  }
}