/* ===== Marketplace UI - Tema oscuro estilo CS ===== */
:root {
  --bg-primary: #0f0f12;
  --bg-secondary: #16161b;
  --bg-card: #1c1c23;
  --bg-card-hover: #23232d;
  --border: #2a2a35;
  --text-primary: #e8e8ed;
  --text-secondary: #9a9aa8;
  --text-muted: #6b6b78;
  --accent: #f59e0b;
  --accent-hover: #fbbf24;
  --success: #22c55e;
  --danger: #ef4444;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  --font-sans: 'DM Sans', system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
}

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover {
  color: var(--accent-hover);
}

/* ===== Layout ===== */
.layout {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ===== Header ===== */
.header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 1.5rem;
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}
.logo {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}
.logo span { color: var(--accent); }
.nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.nav a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
}
.nav a:hover { color: var(--text-primary); }
.search-wrap {
  flex: 1;
  max-width: 400px;
}
.search-input {
  width: 100%;
  padding: 0.5rem 1rem 0.5rem 2.5rem;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 0.9rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' fill='%236b6b78' viewBox='0 0 16 16'%3E%3Cpath d='M11.742 10.344a6.5 6.5 0 1 0-1.397 1.398h-.001c.03.04.062.078.098.115l3.85 3.85a1 1 0 0 0 1.415-1.414l-3.85-3.85a1.007 1.007 0 0 0-.115-.1zM12 6.5a5.5 5.5 0 1 1-11 0 5.5 5.5 0 0 1 11 0z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: 0.65rem center;
}
.search-input::placeholder { color: var(--text-muted); }
.search-input:focus {
  outline: none;
  border-color: var(--accent);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.2s, color 0.2s;
}
.btn-primary {
  background: var(--accent);
  color: #0f0f12;
}
.btn-primary:hover {
  background: var(--accent-hover);
}
.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}
.btn-ghost:hover {
  background: var(--bg-card);
  color: var(--text-primary);
}
.header-user {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* ===== Main content ===== */
.main {
  flex: 1;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
  padding: 1.5rem;
}
.messages {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem 0;
}
.message {
  padding: 0.6rem 1rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
}
.message--success {
  background: rgba(34, 197, 94, 0.15);
  color: var(--success);
  border: 1px solid var(--success);
}
.message--error {
  background: rgba(239, 68, 68, 0.15);
  color: var(--danger);
  border: 1px solid var(--danger);
}

/* ===== Sidebar + Grid ===== */
.content-with-sidebar {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
}
.sidebar {
  width: 260px;
  flex-shrink: 0;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1rem;
  position: sticky;
  top: 5rem;
}
.sidebar h3 {
  margin: 0 0 1rem 0;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.filter-group {
  margin-bottom: 1rem;
}
.filter-group label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}
.filter-group select,
.filter-group input[type="text"],
.filter-group input[type="number"] {
  width: 100%;
  padding: 0.45rem 0.6rem;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 0.85rem;
}
.filter-group input::placeholder { color: var(--text-muted); }
.grid-wrap {
  flex: 1;
  min-width: 0;
}
.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.toolbar .count {
  font-size: 0.9rem;
  color: var(--text-secondary);
}
.sort-select {
  padding: 0.4rem 0.75rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 0.85rem;
  cursor: pointer;
}

/* ===== Item grid ===== */
.items-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}
.item-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color 0.2s, background 0.2s, transform 0.15s;
}
.item-card:hover {
  border-color: var(--accent);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}
.item-card a {
  color: inherit;
  display: block;
}
.item-card a:hover { color: inherit; }
.item-image {
  aspect-ratio: 16 / 10;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.item-image img {
  width: 85%;
  height: 85%;
  object-fit: contain;
}
.item-image .placeholder-icon {
  width: 48px;
  height: 48px;
  opacity: 0.4;
}
.item-body {
  padding: 0.75rem;
}
.item-name {
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.25rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.item-wear {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}
.item-price {
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent);
}
.no-items {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--text-muted);
  font-size: 1rem;
  padding: 2rem;
  margin: 0;
}
.no-items a { color: var(--accent); }

/* ===== Item detail page ===== */
.detail-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 2rem;
  align-items: start;
}
@media (max-width: 900px) {
  .detail-layout { grid-template-columns: 1fr; }
}
.detail-image-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  aspect-ratio: 16 / 10;
  display: flex;
  align-items: center;
  justify-content: center;
}
.detail-image-box img {
  max-width: 90%;
  max-height: 90%;
  object-fit: contain;
}
.detail-info h1 {
  margin: 0 0 0.5rem 0;
  font-size: 1.5rem;
}
.detail-meta {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}
.detail-price-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}
.detail-price {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 1rem;
}
.detail-price-box .btn {
  width: 100%;
  padding: 0.75rem;
  font-size: 1rem;
}
.specs-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0 0;
}
.specs-list li {
  display: flex;
  justify-content: space-between;
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}
.specs-list li span:first-child { color: var(--text-muted); }
.specs-list li span:last-child { color: var(--text-primary); }

/* ===== Auth / Sell pages ===== */
.auth-box, .sell-box {
  max-width: 420px;
  margin: 4rem auto;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}
.auth-box h1, .sell-box h1 {
  margin: 0 0 1.5rem 0;
  font-size: 1.5rem;
  text-align: center;
}
.form-group {
  margin-bottom: 1rem;
}
.form-group label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 0.35rem;
}
.form-group input {
  width: 100%;
  padding: 0.6rem 0.85rem;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 0.95rem;
}
.form-group input:focus {
  outline: none;
  border-color: var(--accent);
}
.auth-box .btn, .sell-box .btn {
  width: 100%;
  padding: 0.7rem;
  margin-top: 0.5rem;
}
/* Botón Steam */
.btn-steam {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  width: 100%;
  padding: 0.75rem 1.25rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius);
  background: #1b2838;
  color: #c7d5e0;
  border: 1px solid #2a475e;
  text-decoration: none;
  font-family: inherit;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}
.btn-steam:hover {
  background: #2a475e;
  border-color: #66c0f4;
  color: #fff;
}
.btn-steam .steam-icon {
  flex-shrink: 0;
}
.sell-box { max-width: 520px; }
.sell-box--wide { max-width: 720px; }
.inventory-login-cta {
  text-align: center;
  padding: 1.5rem 0;
  color: var(--text-secondary);
}
.inventory-url-section {
  margin-bottom: 1.25rem;
  padding: 1rem;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.inventory-url-label {
  display: block;
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}
.inventory-url-row {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}
.inventory-url-input {
  flex: 1;
  padding: 0.5rem 0.75rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 0.9rem;
}
.inventory-url-input:focus {
  outline: none;
  border-color: var(--accent);
}
.inventory-url-input::placeholder {
  color: var(--text-muted);
}
.inventory-url-hint {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin: 0;
}
.inventory-url-hint code {
  background: var(--bg-secondary);
  padding: 0.15rem 0.35rem;
  border-radius: 4px;
  font-size: 0.75rem;
  word-break: break-all;
}
.inventory-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.inventory-count {
  font-size: 0.9rem;
  color: var(--text-secondary);
}
.btn-sm {
  padding: 0.35rem 0.75rem;
  font-size: 0.85rem;
}
.inventory-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 0.75rem;
  max-height: 320px;
  overflow-y: auto;
  margin-bottom: 1.5rem;
  padding: 0.25rem 0;
}
.inventory-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  font-family: inherit;
  color: var(--text-primary);
  text-align: center;
  transition: border-color 0.2s, background 0.2s;
}
.inventory-item:hover {
  border-color: var(--accent);
  background: var(--bg-card-hover);
}
.inventory-item.is-selected {
  border-color: var(--accent);
  background: var(--bg-card-hover);
  box-shadow: 0 0 0 2px rgba(245, 158, 11, 0.25);
}
.inventory-item__img {
  width: 64px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-primary);
  border-radius: 4px;
  overflow: hidden;
}
.inventory-item__img img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}
.inventory-item__placeholder {
  font-size: 1.25rem;
  color: var(--text-muted);
}
.inventory-item__name {
  font-size: 0.75rem;
  line-height: 1.2;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}
.inventory-empty {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  padding: 1.5rem;
  margin: 0;
}
.sell-form { margin-top: 1rem; }

/* ===== Footer ===== */
.footer {
  margin-top: auto;
  padding: 1.5rem;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Published Badge Overlay */
.inventory-item.is-published {
  border-color: var(--accent);
  background-color: rgba(0, 168, 255, 0.05);
  cursor: pointer;
  text-decoration: none;
}
.inventory-item.is-published:hover {
  border-color: var(--accent-light);
  transform: translateY(-2px);
  background-color: rgba(0, 168, 255, 0.1);
}
.published-badge {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  padding: 0.25rem 0;
  background-color: rgba(0, 168, 255, 0.9);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
  text-align: center;
  text-transform: uppercase;
  z-index: 10;
  border-top-left-radius: 6px;
  border-top-right-radius: 6px;
}