:root {
  --bg-dark: #090d16;
  --bg-card: rgba(18, 24, 40, 0.75);
  --bg-card-hover: rgba(30, 41, 67, 0.85);
  --accent-cyan: #06b6d4;
  --accent-purple: #8b5cf6;
  --accent-emerald: #10b981;
  --border-color: rgba(255, 255, 255, 0.1);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
}

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

body {
  font-family: 'Inter', sans-serif;
  background: radial-gradient(circle at 50% 0%, #1e1b4b 0%, var(--bg-dark) 75%);
  color: var(--text-main);
  min-height: 100vh;
  padding: 2rem 1rem;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
}

/* Header */
.header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.tech-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  padding: 0.4rem 1rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--accent-cyan);
  margin-bottom: 1rem;
  backdrop-filter: blur(10px);
}

.header h1 {
  font-family: 'Outfit', sans-serif;
  font-size: 2.75rem;
  font-weight: 800;
  background: linear-gradient(135deg, #ffffff 0%, #a5f3fc 50%, #c084fc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.5rem;
}

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

/* Search Box */
.search-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 1.5rem;
  padding: 2rem;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(16px);
  margin-bottom: 2rem;
}

.search-form {
  display: flex;
  gap: 1rem;
  max-width: 800px;
  margin: 0 auto 1.25rem auto;
}

.vin-input {
  flex: 1;
  background: rgba(15, 23, 42, 0.8);
  border: 2px solid rgba(255, 255, 255, 0.15);
  border-radius: 1rem;
  padding: 1rem 1.5rem;
  color: #fff;
  font-size: 1.1rem;
  font-family: monospace;
  letter-spacing: 2px;
  text-transform: uppercase;
  outline: none;
  transition: all 0.3s ease;
}

.vin-input:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 20px rgba(6, 182, 212, 0.3);
}

.btn-decode {
  background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-purple) 100%);
  color: #fff;
  font-weight: 700;
  font-size: 1.05rem;
  padding: 1rem 2rem;
  border: none;
  border-radius: 1rem;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-decode:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(139, 92, 246, 0.4);
}

.samples-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.sample-btn {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-color);
  color: #e2e8f0;
  padding: 0.4rem 0.85rem;
  border-radius: 0.5rem;
  cursor: pointer;
  font-size: 0.85rem;
  transition: all 0.2s ease;
}

.sample-btn:hover {
  background: rgba(6, 182, 212, 0.2);
  border-color: var(--accent-cyan);
  color: #fff;
}

/* Loading Spinner */
.loader {
  display: none;
  text-align: center;
  padding: 3rem 0;
}

.spinner {
  width: 50px;
  height: 50px;
  border: 4px solid rgba(255, 255, 255, 0.1);
  border-left-color: var(--accent-cyan);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 1rem auto;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Specs Section */
.specs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.spec-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 1rem;
  padding: 1.25rem;
  backdrop-filter: blur(12px);
}

.spec-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

.spec-value {
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  font-family: 'Outfit', sans-serif;
}

/* Toolbar */
.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.filter-input {
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  padding: 0.75rem 1.25rem;
  color: #fff;
  font-size: 0.95rem;
  width: 320px;
  outline: none;
}

.filter-input:focus {
  border-color: var(--accent-purple);
}

.btn-export {
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.4);
  color: var(--accent-emerald);
  padding: 0.75rem 1.5rem;
  border-radius: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-export:hover {
  background: rgba(16, 185, 129, 0.3);
  color: #fff;
}

/* Subsystems Grid */
.subsystems-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.subsystem-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 1.25rem;
  padding: 1.5rem;
  backdrop-filter: blur(12px);
  transition: all 0.3s ease;
}

.subsystem-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-color);
}

.subsystem-title {
  font-family: 'Outfit', sans-serif;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent-cyan);
}

.badge-count {
  background: rgba(139, 92, 246, 0.25);
  border: 1px solid var(--accent-purple);
  color: #d8b4fe;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.8rem;
  font-weight: 600;
}

.parts-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 1rem;
}

.part-item {
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 0.85rem;
  padding: 1rem;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.part-item:hover {
  border-color: rgba(6, 182, 212, 0.4);
  transform: translateY(-2px);
}

.part-name {
  font-weight: 600;
  font-size: 1.05rem;
  color: #f1f5f9;
  margin-bottom: 0.35rem;
}

.part-spec {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.4;
}