:root {
  --bg: #030712;
  --surface: rgba(9, 16, 32, 0.85);
  --card: rgba(10, 16, 33, 0.95);
  --card-strong: rgba(8, 14, 29, 0.96);
  --accent: #4db5ff;
  --text: #f5f7ff;
  --muted: #9fb4d9;
  --border: rgba(255, 255, 255, 0.08);
  --success: #2dd4bf;
  --warning: #fbbf24;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  background: linear-gradient(135deg, #050c1c, #03050f 40%, #05060f 100%);
  color: var(--text);
}

.noise-overlay {
  pointer-events: none;
  position: fixed;
  inset: 0;
  background-image: url('https://www.transparenttextures.com/patterns/asfalt-dark.png');
  opacity: 0.08;
  z-index: 0;
}

main, header { position: relative; z-index: 1; }

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem clamp(1rem, 6vw, 3rem);
  background: rgba(5, 9, 20, 0.88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.brand { display: flex; gap: 0.9rem; align-items: center; }
.brand-mark {
  width: 3rem;
  height: 3rem;
  border-radius: 0.75rem;
  border: 1px solid var(--accent);
  display: grid;
  place-items: center;
  font-family: "Rajdhani", sans-serif;
  letter-spacing: 0.2em;
}
.brand-title { margin: 0; text-transform: uppercase; letter-spacing: 0.16em; font-size: 0.95rem; }
.brand-subtitle { margin: 0; color: var(--muted); font-size: 0.8rem; }

.site-nav { display: flex; gap: 1.25rem; text-transform: uppercase; letter-spacing: 0.1em; }
.site-nav a { color: var(--muted); text-decoration: none; font-size: 0.85rem; }
.site-nav a.active, .site-nav a:hover { color: var(--accent); }

.btn {
  border: none;
  border-radius: 999px;
  padding: 0.65rem 1.5rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  cursor: pointer;
}
.btn.secondary, .btn.ghost {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  color: var(--text);
}

.market-hero {
  padding: clamp(2rem, 8vw, 4rem) clamp(1.25rem, 6vw, 4rem) 1rem;
}
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.3em;
  font-size: 0.75rem;
  color: var(--accent);
  margin-bottom: 0.75rem;
}
.market-hero h1 { margin: 0 0 1rem; font-size: clamp(1.8rem, 4vw, 2.8rem); }
.market-hero p { color: var(--muted); max-width: 70ch; }

.market-board {
  padding: 0 clamp(1.25rem, 6vw, 4rem) 4rem;
  background: radial-gradient(1200px 240px at 40% -20%, rgba(77, 181, 255, 0.12), transparent 55%);
}

.controls-top {
  margin-bottom: 0.6rem;
}

.controls {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.controls p {
  margin: 0;
}

.filter-controls {
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: 0.9rem;
  background: linear-gradient(170deg, rgba(13, 20, 39, 0.9), rgba(9, 15, 30, 0.9));
  align-items: end;
  box-shadow: 0 10px 30px rgba(3, 8, 20, 0.35);
}

.controls label {
  display: grid;
  gap: 0.35rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.controls select,
.controls input[type="search"] {
  min-width: 240px;
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  outline: none;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.controls select:focus,
.controls input[type="search"]:focus {
  border-color: rgba(77, 181, 255, 0.75);
  box-shadow: 0 0 0 3px rgba(77, 181, 255, 0.2);
}

.controls select {
  appearance: none;
  -webkit-appearance: none;
  padding-right: 2rem;
  background-image:
    linear-gradient(45deg, transparent 50%, #87cfff 50%),
    linear-gradient(135deg, #87cfff 50%, transparent 50%),
    linear-gradient(to right, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0.14));
  background-position:
    calc(100% - 15px) calc(50% - 2px),
    calc(100% - 10px) calc(50% - 2px),
    calc(100% - 2.1rem) 0.45rem;
  background-size: 5px 5px, 5px 5px, 1px 1.4rem;
  background-repeat: no-repeat;
}

.controls select option {
  color: #f5f7ff;
  background: #0d1730;
}

.inline-toggle {
  display: inline-flex !important;
  align-items: center;
  gap: 0.6rem;
  margin-top: 1.15rem;
  cursor: pointer;
  user-select: none;
}

.inline-toggle input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
  pointer-events: none;
}

.inline-toggle span {
  position: relative;
  padding-left: 2.2rem;
  color: var(--text);
}

.inline-toggle span::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 1.45rem;
  height: 1.45rem;
  transform: translateY(-50%);
  border-radius: 0.36rem;
  border: 1px solid rgba(135, 207, 255, 0.45);
  background: rgba(255, 255, 255, 0.03);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.03);
}

.inline-toggle span::after {
  content: "";
  position: absolute;
  left: 0.48rem;
  top: 50%;
  width: 0.34rem;
  height: 0.7rem;
  transform: translateY(-62%) rotate(45deg);
  border: solid #081224;
  border-width: 0 2px 2px 0;
  opacity: 0;
  transition: opacity 0.15s ease;
}

.inline-toggle input[type="checkbox"]:checked + span::before {
  background: linear-gradient(160deg, #7bc8ff, #3ea6f7);
  border-color: #8fd2ff;
}

.inline-toggle input[type="checkbox"]:checked + span::after {
  opacity: 1;
}

.inline-toggle input[type="checkbox"]:focus + span::before {
  box-shadow: 0 0 0 3px rgba(77, 181, 255, 0.25);
}

.listing-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}
@media (max-width: 1200px) { .listing-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 900px) { .listing-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px) { .listing-grid { grid-template-columns: 1fr; } .site-nav { display: none; } }

.listing-card {
  border: 1px solid var(--border);
  border-radius: 1rem;
  background: linear-gradient(170deg, var(--card-strong), var(--card));
  overflow: hidden;
  box-shadow: 0 16px 36px rgba(2, 6, 20, 0.45);
  transition: transform 0.18s ease, border-color 0.18s ease;
}

.listing-card:hover {
  transform: translateY(-2px);
  border-color: rgba(77, 181, 255, 0.38);
}
.listing-image {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: linear-gradient(150deg, #11203a, #0a1221);
}
.listing-body { padding: 0.9rem; display: grid; gap: 0.5rem; }
.listing-title { margin: 0; font-size: 1.1rem; }
.listing-sku { margin: 0; color: var(--muted); font-size: 0.85rem; letter-spacing: 0.08em; text-transform: uppercase; }
.listing-desc { margin: 0; color: var(--muted); font-size: 0.9rem; min-height: 2.6em; }
.listing-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.4rem;
  font-size: 0.85rem;
}
.listing-meta span { color: var(--muted); display: block; }
.stock-tag {
  display: inline-block;
  font-size: 0.75rem;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  border: 1px solid var(--border);
}
.stock-tag.in-stock { color: var(--success); }
.stock-tag.low-stock { color: var(--warning); }

.status { color: var(--muted); margin-top: 1rem; min-height: 1.25rem; }
.site-footer {
  position: relative;
  z-index: 1;
  padding: 1.5rem;
  text-align: center;
  color: var(--muted);
  border-top: 1px solid var(--border);
}

.modal {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(2, 6, 18, 0.75);
  backdrop-filter: blur(6px);
  z-index: 30;
}
.modal[aria-hidden="true"] {
  display: none;
}
.modal-content {
  width: min(92vw, 420px);
  background: #081224;
  border: 1px solid var(--border);
  border-radius: 0.9rem;
  padding: 1rem;
}
.modal-content form {
  display: grid;
  gap: 0.7rem;
}
.modal-content input {
  width: 100%;
  padding: 0.6rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}
.modal-close {
  margin-left: auto;
  display: block;
  background: transparent;
  border: none;
  color: var(--text);
  font-size: 1.35rem;
  cursor: pointer;
}