/* ========================================
   Logo Archive — 92learns
   Premium dark theme, editorial grid
   ======================================== */

:root {
  --bg: #0a0a0a;
  --bg-elevated: #141414;
  --bg-card: #161616;
  --bg-card-hover: #1c1c1c;
  --bg-sidebar: #111111;
  --border: #222222;
  --border-light: #2a2a2a;
  --text: #f5f5f5;
  --text-secondary: #888888;
  --text-tertiary: #555555;
  --accent: #ff6431;
  --accent-hover: #ff7d52;
  --accent-subtle: rgba(255, 100, 49, 0.1);
  --accent-border: rgba(255, 100, 49, 0.3);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --sidebar-width: 260px;
  --header-height: 56px;
  --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}

::selection {
  background: var(--accent);
  color: white;
}

/* ---- Scrollbar ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-tertiary); }

/* ---- Header ---- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  padding: 0 20px;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 200px;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--text);
}

.logo-mark {
  font-size: 22px;
  color: var(--accent);
  line-height: 1;
}

.logo-text {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.logo-badge {
  font-size: 11px;
  color: var(--text-tertiary);
  font-weight: 400;
  padding: 2px 8px;
  border: 1px solid var(--border);
  border-radius: 100px;
  white-space: nowrap;
}

.header-center {
  flex: 1;
  max-width: 480px;
  margin: 0 20px;
}

.search-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.search-icon {
  position: absolute;
  left: 12px;
  color: var(--text-tertiary);
  pointer-events: none;
}

.search-input {
  width: 100%;
  height: 36px;
  padding: 0 40px 0 38px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--text);
  font-size: 13px;
  font-family: var(--font);
  outline: none;
  transition: border-color var(--transition), background var(--transition);
}

.search-input::placeholder {
  color: var(--text-tertiary);
}

.search-input:focus {
  border-color: var(--accent-border);
  background: var(--bg-card);
}

.search-kbd {
  position: absolute;
  right: 10px;
  font-size: 11px;
  font-family: var(--font);
  color: var(--text-tertiary);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 6px;
  line-height: 1.5;
  pointer-events: none;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 160px;
  justify-content: flex-end;
}

.stats-pill {
  font-size: 12px;
  color: var(--text-secondary);
  padding: 4px 12px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 100px;
  white-space: nowrap;
}

.filter-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
}

.filter-toggle:hover {
  border-color: var(--text-tertiary);
  color: var(--text);
}

.filter-count {
  position: absolute;
  top: -4px;
  right: -4px;
  font-size: 10px;
  min-width: 16px;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: white;
  border-radius: 100px;
  font-weight: 600;
  padding: 0 4px;
}

/* ---- Active Filters Bar ---- */
.active-filters {
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  padding: 10px 20px;
}

.active-filters-inner {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-left: var(--sidebar-width);
}

.chips-wrapper {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  flex: 1;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: var(--accent-subtle);
  border: 1px solid var(--accent-border);
  border-radius: 100px;
  font-size: 12px;
  color: var(--accent);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.chip:hover {
  background: rgba(255, 100, 49, 0.2);
}

.chip-x {
  font-size: 14px;
  line-height: 1;
  opacity: 0.7;
}

.clear-all {
  font-size: 12px;
  color: var(--text-tertiary);
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font);
  white-space: nowrap;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.clear-all:hover {
  color: var(--text);
  background: var(--bg-elevated);
}

/* ---- Layout ---- */
.layout {
  display: flex;
  min-height: calc(100vh - var(--header-height));
}

/* ---- Sidebar ---- */
.sidebar {
  width: var(--sidebar-width);
  min-width: var(--sidebar-width);
  border-right: 1px solid var(--border);
  background: var(--bg-sidebar);
  overflow-y: auto;
  height: calc(100vh - var(--header-height));
  position: sticky;
  top: var(--header-height);
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 18px 12px;
}

.sidebar-header h2 {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
}

.sidebar-close {
  display: none;
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 4px;
}

.sidebar-body {
  padding: 0 0 24px;
}

/* Filter Groups */
.filter-group {
  border-bottom: 1px solid var(--border);
}

.filter-group:last-child {
  border-bottom: none;
}

.filter-group-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  cursor: pointer;
  user-select: none;
  transition: background var(--transition);
}

.filter-group-header:hover {
  background: var(--bg-elevated);
}

.filter-group-title {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  text-transform: capitalize;
}

.filter-group-arrow {
  color: var(--text-tertiary);
  transition: transform var(--transition);
  font-size: 12px;
}

.filter-group.collapsed .filter-group-arrow {
  transform: rotate(-90deg);
}

.filter-group-items {
  padding: 0 12px 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.filter-group.collapsed .filter-group-items {
  display: none;
}

.filter-tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  font-size: 12px;
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 100px;
  cursor: pointer;
  font-family: var(--font);
  transition: all var(--transition);
  white-space: nowrap;
}

.filter-tag:hover {
  border-color: var(--text-tertiary);
  color: var(--text);
  background: var(--bg-elevated);
}

.filter-tag.active {
  background: var(--accent-subtle);
  border-color: var(--accent-border);
  color: var(--accent);
}

.filter-tag-count {
  margin-left: 4px;
  font-size: 10px;
  color: var(--text-tertiary);
}

.filter-tag.active .filter-tag-count {
  color: var(--accent);
  opacity: 0.6;
}

/* ---- Content ---- */
.content {
  flex: 1;
  min-width: 0;
  padding: 0 24px 48px;
}

.results-bar {
  padding: 14px 0;
  font-size: 12px;
  color: var(--text-tertiary);
}

/* ---- Grid ---- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
}

.card:hover {
  border-color: var(--border-light);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.card-image {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 28px;
  background: var(--bg-card);
  position: relative;
  overflow: hidden;
}

.card-image img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  filter: none;
  transition: transform var(--transition);
}

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

/* For SVGs that are too dark on dark bg */
.card-image.light-bg {
  background: #f0f0f0;
}

.card-info {
  padding: 10px 14px;
  border-top: 1px solid var(--border);
}

.card-name {
  font-size: 12px;
  font-weight: 500;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-tags {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 8px 10px;
  background: linear-gradient(transparent, rgba(0,0,0,0.9));
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  opacity: 0;
  transform: translateY(4px);
  transition: all var(--transition);
  pointer-events: none;
}

.card:hover .card-tags {
  opacity: 1;
  transform: translateY(0);
}

.card-tag {
  font-size: 10px;
  padding: 2px 6px;
  background: rgba(255,255,255,0.1);
  border-radius: 100px;
  color: var(--text-secondary);
  backdrop-filter: blur(4px);
}

/* ---- Load More ---- */
.load-more-wrapper {
  display: flex;
  justify-content: center;
  padding: 32px 0;
}

.load-more-btn {
  padding: 10px 32px;
  font-size: 13px;
  font-family: var(--font);
  font-weight: 500;
  color: var(--text);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 100px;
  cursor: pointer;
  transition: all var(--transition);
}

.load-more-btn:hover {
  border-color: var(--accent-border);
  background: var(--accent-subtle);
  color: var(--accent);
}

.load-more-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ---- Empty State ---- */
.empty-state {
  text-align: center;
  padding: 80px 20px;
}

.empty-icon {
  font-size: 48px;
  color: var(--text-tertiary);
  margin-bottom: 16px;
}

.empty-state h3 {
  font-size: 18px;
  font-weight: 500;
  margin-bottom: 8px;
}

.empty-state p {
  font-size: 14px;
  color: var(--text-secondary);
}

/* ---- Loading ---- */
.loading {
  display: flex;
  justify-content: center;
  padding: 48px;
}

.loading.hidden {
  display: none;
}

.spinner {
  width: 24px;
  height: 24px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ---- Modal ---- */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal-overlay.active {
  display: flex;
}

.modal {
  width: 100%;
  max-width: 800px;
  max-height: 90vh;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow-y: auto;
  position: relative;
  animation: modalIn 0.25s ease;
}

@keyframes modalIn {
  from {
    opacity: 0;
    transform: scale(0.96) translateY(8px);
  }
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 10;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 50%;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}

.modal-close:hover {
  color: var(--text);
  border-color: var(--text-tertiary);
}

.modal-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 40px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  min-height: 280px;
}

.modal-logo img {
  max-width: 240px;
  max-height: 200px;
  object-fit: contain;
}

.modal-body {
  padding: 28px 32px;
}

.modal-title {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 4px;
  letter-spacing: -0.02em;
}

.modal-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin: 16px 0 20px;
}

.modal-meta-item {
  font-size: 13px;
}

.modal-meta-label {
  color: var(--text-tertiary);
  margin-right: 4px;
}

.modal-meta-value {
  color: var(--text-secondary);
}

.modal-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 28px;
}

.modal-tag {
  font-size: 12px;
  padding: 4px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}

.modal-tag:hover {
  border-color: var(--accent-border);
  color: var(--accent);
}

.modal-section-title {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-tertiary);
  margin-bottom: 14px;
}

.similar-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 8px;
}

.similar-card {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
}

.similar-card:hover {
  border-color: var(--border-light);
  background: var(--bg-card-hover);
}

.similar-card img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

/* ---- Sidebar Overlay (mobile) ---- */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 49;
  background: rgba(0, 0, 0, 0.6);
}

.sidebar-overlay.active {
  display: block;
}

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .active-filters-inner {
    padding-left: 0;
  }
}

@media (max-width: 768px) {
  .header-left {
    min-width: auto;
  }

  .logo-badge {
    display: none;
  }

  .header-center {
    margin: 0 12px;
  }

  .stats-pill {
    display: none;
  }

  .filter-toggle {
    display: flex;
  }

  .sidebar {
    position: fixed;
    top: 0;
    left: -300px;
    width: 280px;
    min-width: 280px;
    height: 100vh;
    z-index: 50;
    transition: left 0.3s ease;
    border-right: 1px solid var(--border);
  }

  .sidebar.open {
    left: 0;
  }

  .sidebar-close {
    display: block;
  }

  .sidebar-header {
    padding-top: 20px;
  }

  .active-filters-inner {
    padding-left: 0;
  }

  .content {
    padding: 0 16px 48px;
  }

  .grid {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 8px;
  }

  .card-image {
    padding: 20px;
  }

  .modal {
    margin: 0;
    border-radius: var(--radius-md);
  }

  .modal-logo {
    padding: 40px 24px;
    min-height: 200px;
  }

  .modal-body {
    padding: 20px;
  }

  .modal-title {
    font-size: 20px;
  }
}

@media (max-width: 480px) {
  .search-kbd {
    display: none;
  }

  .grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 6px;
  }

  .card-info {
    padding: 8px 10px;
  }

  .card-name {
    font-size: 11px;
  }
}