/* Minimalist & Premium Design System for Unlock! Tracker */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600&display=swap');

:root {
  --bg-page: #f8f9fa;
  --bg-card: #ffffff;
  --border-color: #e5e7eb;
  --text-primary: #111827;
  --text-secondary: #4b5563;
  --text-muted: #9ca3af;
  
  /* Sage Green Theme */
  --color-accent: #2e7d32;
  --color-accent-light: #e8f5e9;
  --color-accent-hover: #1b5e20;
  
  /* Unowned gray */
  --color-unowned-bg: #f3f4f6;
  --color-unowned-border: #d1d5db;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.03);
  
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --font-title: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
}

/* Dark Mode Variables */
[data-theme="dark"] {
  --bg-page: #0f172a;
  --bg-card: #1e293b;
  --border-color: #334155;
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #64748b;
  
  --color-accent: #4ade80;
  --color-accent-light: rgba(74, 222, 128, 0.1);
  --color-accent-hover: #22c55e;
  
  --color-unowned-bg: #1e293b;
  --color-unowned-border: #475569;
}

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

body {
  background-color: var(--bg-page);
  color: var(--text-primary);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.5;
  transition: background-color 0.3s ease, color 0.3s ease;
}

header {
  max-width: 1200px;
  margin: 2rem auto 0 auto;
  padding: 0 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand h1 {
  font-family: var(--font-title);
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--text-primary);
}

.brand p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

.theme-toggle-btn {
  background: none;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition);
}

.theme-toggle-btn:hover {
  background-color: var(--color-unowned-bg);
}

main {
  max-width: 1200px;
  margin: 1.5rem auto 3rem auto;
  padding: 0 1.5rem;
}

/* Dashboard Stats Box */
.stats-panel {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  margin-bottom: 2rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  transition: var(--transition);
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.stat-value {
  font-family: var(--font-title);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: baseline;
  gap: 0.25rem;
}

.stat-value .total {
  font-size: 1rem;
  color: var(--text-muted);
  font-weight: 400;
}

.stat-progress-bar {
  height: 6px;
  background-color: var(--color-unowned-bg);
  border-radius: 999px;
  margin-top: 0.75rem;
  overflow: hidden;
}

.stat-progress-fill {
  height: 100%;
  background-color: var(--color-accent);
  border-radius: 999px;
  width: 0%;
  transition: width 0.6s cubic-bezier(0.1, 0.8, 0.3, 1);
}

/* Filters & Search Panel */
.controls-panel {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2rem;
}

.search-container {
  position: relative;
  flex: 1;
  min-width: 280px;
  max-width: 400px;
}

.search-input {
  width: 100%;
  padding: 0.625rem 1rem 0.625rem 2.5rem;
  font-family: var(--font-body);
  font-size: 0.875rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  transition: var(--transition);
}

.search-input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-light);
}

.search-icon {
  position: absolute;
  left: 0.875rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

.filters-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.filter-btn {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: 999px;
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn:hover {
  background-color: var(--color-unowned-bg);
  color: var(--text-primary);
}

.filter-btn.active {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: #ffffff;
}

.toggle-group {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.toggle-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
}

.toggle-checkbox {
  accent-color: var(--color-accent);
  width: 16px;
  height: 16px;
  cursor: pointer;
}

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

/* Elegant Minimalist Box Card */
.box-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.2s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.2s ease;
}

.box-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Ownership states */
.box-card.owned {
  border-color: var(--color-accent);
}

.box-card.not-owned {
  border-color: var(--border-color);
}

/* Cover Wrapper */
.cover-wrapper {
  position: relative;
  width: 100%;
  height: 200px;
  background-color: var(--color-unowned-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-bottom: 1px solid var(--border-color);
}

.cover-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity 0.3s ease;
}

/* Typography cover when image is absent or loading */
.cover-fallback {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #f3f4f6 0%, #e5e7eb 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.25rem;
}

[data-theme="dark"] .cover-fallback {
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
}

.cover-fallback .box-type {
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.cover-fallback .box-title {
  font-family: var(--font-title);
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
  margin-top: 0.25rem;
}

/* Badges on Cover */
.category-badge {
  position: absolute;
  top: 0.875rem;
  left: 0.875rem;
  background-color: rgba(255, 255, 255, 0.9);
  color: #1f2937;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.5rem;
  border-radius: 999px;
  box-shadow: var(--shadow-sm);
  z-index: 2;
}

[data-theme="dark"] .category-badge {
  background-color: rgba(15, 23, 42, 0.9);
  color: #f1f5f9;
}

.own-toggle-btn {
  position: absolute;
  top: 0.875rem;
  right: 0.875rem;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.95);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  z-index: 2;
  color: var(--text-secondary);
}

[data-theme="dark"] .own-toggle-btn {
  background-color: rgba(30, 41, 59, 0.95);
}

.own-toggle-btn:hover {
  transform: scale(1.05);
  background-color: #ffffff;
}

.box-card.owned .own-toggle-btn {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: #ffffff;
}

/* Card Content details */
.card-content {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.box-info {
  margin-bottom: 1rem;
}

.box-name {
  font-family: var(--font-title);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
}

.box-progress {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
  font-weight: 500;
}

/* Scenarios List inside Card */
.scenarios-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  border-top: 1px solid var(--border-color);
  padding-top: 1rem;
  margin-top: auto;
  
  /* For Short Adventures (14 scenarios), add maximum height and scroll */
  max-height: 220px;
  overflow-y: auto;
  padding-right: 0.25rem;
}

/* Thin custom scrollbar for scenario lists */
.scenarios-list::-webkit-scrollbar {
  width: 4px;
}
.scenarios-list::-webkit-scrollbar-track {
  background: transparent;
}
.scenarios-list::-webkit-scrollbar-thumb {
  background-color: var(--border-color);
  border-radius: 2px;
}

.scenario-item {
  display: flex;
  align-items: center;
  font-size: 0.875rem;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
  transition: color 0.2s ease;
}

.scenario-checkbox {
  appearance: none;
  width: 18px;
  height: 18px;
  border: 1.5px solid var(--text-muted);
  border-radius: var(--radius-sm);
  margin-right: 0.75rem;
  display: grid;
  place-content: center;
  cursor: pointer;
  transition: var(--transition);
  flex-shrink: 0;
}

.scenario-checkbox::before {
  content: "";
  width: 10px;
  height: 10px;
  transform: scale(0);
  transition: 120ms transform ease-in-out;
  box-shadow: inset 1em 1em var(--color-accent);
  clip-path: polygon(14% 44%, 0 65%, 50% 100%, 100% 16%, 80% 0%, 43% 62%);
}

.scenario-checkbox:checked {
  border-color: var(--color-accent);
  background-color: var(--color-accent-light);
}

.scenario-checkbox:checked::before {
  transform: scale(1);
}

.scenario-item:hover {
  color: var(--text-primary);
}

.scenario-item:hover .scenario-checkbox {
  border-color: var(--text-primary);
}

.scenario-item.played {
  color: var(--text-muted);
}

.scenario-item.played .scenario-name {
  text-decoration: line-through;
}

/* Settings and Import/Export Section */
.footer-settings {
  max-width: 1200px;
  margin: 4rem auto;
  padding: 2rem 1.5rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
}

.settings-description {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.settings-actions {
  display: flex;
  gap: 0.75rem;
}

.btn-secondary {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-secondary:hover {
  background-color: var(--color-unowned-bg);
  color: var(--text-primary);
}

/* Hidden file inputs */
.hidden-file-input {
  display: none;
}

/* Media Queries for responsive tweaks */
@media (max-width: 640px) {
  header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
  
  .theme-toggle-btn {
    align-self: flex-end;
  }
  
  .controls-panel {
    flex-direction: column;
    align-items: stretch;
  }
  
  .search-container {
    max-width: none;
  }
}