/* 
   ZEROCORE - Premium Paid Proofs Showcase
   Obsidian Dark Theme CSS File
*/

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Outfit:wght@400;500;600;700;800&display=swap');

:root {
  /* Color System */
  --bg-primary: #070709;
  --bg-secondary: #0c0d12;
  --bg-tertiary: #13141c;
  --accent-green: #10b981;
  --accent-green-rgb: 16, 185, 129;
  --accent-cyan: #0ea5e9;
  --accent-cyan-rgb: 14, 165, 233;
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --border-color: rgba(255, 255, 255, 0.05);
  --border-glow: rgba(16, 185, 129, 0.15);
  
  /* Fonts */
  --font-header: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  /* Transitions */
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.15s ease;
  
  /* Layout Options */
  --card-radius: 16px;
  --btn-radius: 12px;
}

/* Reset & Core Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: var(--font-body);
  line-height: 1.5;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  background-image: 
    radial-gradient(circle at 10% 20%, rgba(16, 185, 129, 0.03) 0%, transparent 40%),
    radial-gradient(circle at 90% 80%, rgba(14, 165, 233, 0.03) 0%, transparent 45%);
  background-attachment: fixed;
}

/* Scrollbar Styles */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--bg-tertiary);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-green);
}

a {
  color: inherit;
  text-decoration: none;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header & Navigation */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7, 7, 9, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  padding: 16px 0;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: var(--font-header);
  font-size: 24px;
  font-weight: 800;
  letter-spacing: 1px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.logo span {
  background: linear-gradient(135deg, var(--text-main) 40%, var(--accent-green) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-dot {
  width: 6px;
  height: 6px;
  background-color: var(--accent-green);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--accent-green);
  display: inline-block;
  animation: pulse 2s infinite;
}

.system-status {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.2);
  padding: 6px 12px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 500;
  color: #34d399;
}

.status-indicator {
  width: 6px;
  height: 6px;
  background-color: var(--accent-green);
  border-radius: 50%;
  display: inline-block;
}

/* Hero Section */
.hero {
  padding: 80px 0 40px;
  text-align: center;
}

.hero h1 {
  font-family: var(--font-header);
  font-size: 48px;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: -1px;
}

.hero h1 span.gradient {
  background: linear-gradient(135deg, #ffffff 30%, #a7f3d0 60%, var(--accent-green) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  color: var(--text-muted);
  font-size: 18px;
  max-width: 600px;
  margin: 0 auto 32px;
  font-weight: 300;
}

/* Stats Row */
.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 800px;
  margin: 0 auto;
}

.stat-card {
  background: rgba(19, 20, 28, 0.4);
  border: 1px solid var(--border-color);
  border-radius: var(--card-radius);
  padding: 20px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  text-align: center;
  transition: var(--transition-smooth);
}

.stat-card:hover {
  border-color: rgba(16, 185, 129, 0.2);
  transform: translateY(-2px);
}

.stat-number {
  font-family: var(--font-header);
  font-size: 32px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 4px;
}

.stat-card:first-child .stat-number {
  color: var(--accent-green);
  text-shadow: 0 0 20px rgba(16, 185, 129, 0.2);
}

.stat-label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-muted);
  font-weight: 500;
}

/* Filter and Controls Toolbar */
.toolbar {
  margin: 48px 0 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  padding: 16px;
  background: rgba(12, 13, 18, 0.6);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.filter-tabs {
  display: flex;
  gap: 8px;
}

.filter-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 14px;
  padding: 8px 16px;
  border-radius: var(--btn-radius);
  cursor: pointer;
  transition: var(--transition-fast);
}

.filter-btn:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.03);
}

.filter-btn.active {
  background: rgba(16, 185, 129, 0.1);
  border-color: rgba(16, 185, 129, 0.2);
  color: #34d399;
}

.search-sort-group {
  display: flex;
  gap: 12px;
  align-items: center;
  width: 100%;
  max-width: 450px;
}

@media (min-width: 768px) {
  .search-sort-group {
    width: auto;
  }
}

.search-box {
  position: relative;
  flex-grow: 1;
}

.search-box input {
  width: 100%;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 10px 16px 10px 38px;
  border-radius: var(--btn-radius);
  font-family: var(--font-body);
  font-size: 14px;
  outline: none;
  transition: var(--transition-fast);
}

.search-box input:focus {
  border-color: rgba(16, 185, 129, 0.4);
  box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.1);
}

.search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

.sort-select {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 10px 12px;
  border-radius: var(--btn-radius);
  font-family: var(--font-body);
  font-size: 14px;
  outline: none;
  cursor: pointer;
  transition: var(--transition-fast);
}

.sort-select:focus {
  border-color: rgba(16, 185, 129, 0.4);
}

/* Proofs Grid */
.proofs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
  margin-bottom: 80px;
}

/* Proof Card */
.proof-card {
  background: rgba(12, 13, 18, 0.5);
  border: 1px solid var(--border-color);
  border-radius: var(--card-radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  cursor: pointer;
  position: relative;
  transition: var(--transition-smooth);
}

.proof-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--card-radius);
  padding: 1px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.03) 0%, rgba(16, 185, 129, 0) 100%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  transition: var(--transition-smooth);
}

.proof-card:hover {
  transform: translateY(-6px);
  background: rgba(19, 20, 28, 0.6);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
  border-color: rgba(16, 185, 129, 0.15);
}

.proof-card:hover::before {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.25) 0%, rgba(14, 165, 233, 0.05) 100%);
}

.proof-media-wrapper {
  aspect-ratio: 4/3;
  width: 100%;
  position: relative;
  background-color: #0b0c10;
  overflow: hidden;
}

.proof-media-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.proof-card:hover .proof-media-wrapper img {
  transform: scale(1.05);
}

.media-overlay {
  position: absolute;
  inset: 0;
  background: rgba(7, 8, 12, 0.4);
  opacity: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: var(--transition-smooth);
}

.proof-card:hover .media-overlay {
  opacity: 1;
}

.overlay-btn {
  background: rgba(7, 7, 9, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #ffffff;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  transform: scale(0.8);
  transition: var(--transition-smooth);
}

.proof-card:hover .overlay-btn {
  transform: scale(1);
}

.overlay-btn:hover {
  background: var(--accent-green);
  border-color: var(--accent-green);
  box-shadow: 0 0 15px rgba(16, 185, 129, 0.4);
}

/* Badge overlay */
.media-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 4px;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 5;
}

.badge-image {
  background: rgba(14, 165, 233, 0.15);
  border: 1px solid rgba(14, 165, 233, 0.3);
  color: #38bdf8;
}

.badge-video {
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #34d399;
}

/* Proof Info */
.proof-info {
  padding: 16px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.proof-title {
  font-family: var(--font-header);
  font-size: 15px;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 8px;
  line-height: 1.3;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.proof-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
  font-size: 12px;
  color: var(--text-muted);
}

.proof-date {
  display: flex;
  align-items: center;
  gap: 4px;
}

.proof-size {
  background: var(--bg-tertiary);
  padding: 2px 6px;
  border-radius: 4px;
}

/* Loading Shimmer / Skeletons */
.skeleton-card {
  height: 300px;
  border-radius: var(--card-radius);
  background: rgba(12, 13, 18, 0.4);
  border: 1px solid var(--border-color);
  overflow: hidden;
  position: relative;
}

.skeleton-card::after {
  content: '';
  display: block;
  position: absolute;
  inset: 0;
  transform: translateX(-100%);
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.03) 20%,
    rgba(255, 255, 255, 0.06) 60%,
    transparent
  );
  animation: shimmer 1.5s infinite;
}

/* Empty / No Results State */
.no-results {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  background: rgba(12, 13, 18, 0.3);
  border: 1px dashed var(--border-color);
  border-radius: var(--card-radius);
  color: var(--text-muted);
}

.no-results svg {
  margin-bottom: 16px;
  color: var(--accent-green);
  opacity: 0.6;
}

.no-results h3 {
  color: #ffffff;
  margin-bottom: 8px;
  font-family: var(--font-header);
}

/* Lightbox Modal */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(4, 5, 8, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: none;
  justify-content: center;
  align-items: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.lightbox.active {
  display: flex;
  opacity: 1;
}

.lightbox-content-wrapper {
  position: relative;
  width: 100%;
  max-width: 900px;
  height: 90vh;
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.lightbox-media-container {
  flex-grow: 1;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  position: relative;
  border-radius: 12px;
}

.lightbox-media-container img {
  max-width: 100%;
  max-height: 70vh;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.6);
  user-select: none;
  transition: transform 0.2s ease;
}

.lightbox-media-container iframe {
  width: 100%;
  height: 70vh;
  border: none;
  background: #000000;
  border-radius: 8px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.6);
}

.lightbox-info {
  width: 100%;
  margin-top: 20px;
  background: rgba(19, 20, 28, 0.6);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 16px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.lightbox-details {
  flex-grow: 1;
  min-width: 0;
}

.lightbox-title {
  font-family: var(--font-header);
  font-size: 16px;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lightbox-meta {
  font-size: 12px;
  color: var(--text-muted);
  display: flex;
  gap: 16px;
}

.lightbox-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

.lightbox-btn {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: #ffffff;
  padding: 8px 16px;
  border-radius: 10px;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition-fast);
}

.lightbox-btn:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.15);
}

.lightbox-btn.btn-primary {
  background: var(--accent-green);
  border-color: var(--accent-green);
  color: var(--bg-primary);
  font-weight: 600;
}

.lightbox-btn.btn-primary:hover {
  background: #34d399;
  border-color: #34d399;
  box-shadow: 0 0 15px rgba(16, 185, 129, 0.3);
}

/* Lightbox Controls */
.close-lightbox {
  position: absolute;
  top: 24px;
  right: 24px;
  background: rgba(12, 13, 18, 0.8);
  border: 1px solid var(--border-color);
  color: #ffffff;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  z-index: 1010;
  transition: var(--transition-fast);
}

.close-lightbox:hover {
  background: #ef4444;
  border-color: #ef4444;
  transform: rotate(90deg);
}

.nav-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(12, 13, 18, 0.7);
  border: 1px solid var(--border-color);
  color: #ffffff;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  z-index: 1005;
  transition: var(--transition-smooth);
}

.nav-arrow:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.3);
  color: #ffffff;
}

.nav-prev {
  left: 24px;
}

.nav-next {
  right: 24px;
}

/* Toast Message */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translate(-50%, 100px);
  background: rgba(12, 13, 18, 0.9);
  border: 1px solid var(--accent-green);
  color: #ffffff;
  padding: 12px 24px;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  z-index: 2000;
  opacity: 0;
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.3s ease;
}

.toast.show {
  transform: translate(-50%, 0);
  opacity: 1;
}

/* Footer Section */
footer {
  border-top: 1px solid var(--border-color);
  padding: 40px 0;
  background-color: var(--bg-secondary);
  text-align: center;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.footer-brand {
  font-family: var(--font-header);
  font-weight: 700;
  font-size: 18px;
}

.footer-copy {
  font-size: 13px;
  color: var(--text-muted);
}

.footer-dev-trigger {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  transition: var(--transition-fast);
  padding: 4px 8px;
  border-radius: 4px;
}

.footer-dev-trigger:hover {
  color: var(--accent-green);
  background: rgba(255, 255, 255, 0.02);
}

/* Dev Dashboard Modal */
.dev-modal {
  position: fixed;
  inset: 0;
  z-index: 1100;
  background: rgba(4, 5, 8, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: none;
  justify-content: center;
  align-items: center;
}

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

.dev-modal-content {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  width: 90%;
  max-width: 500px;
  padding: 28px;
  position: relative;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7);
}

.dev-modal-title {
  font-family: var(--font-header);
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: #ffffff;
}

.dev-modal-title svg {
  color: var(--accent-green);
}

.dev-step {
  margin-bottom: 16px;
  font-size: 14px;
}

.dev-step-num {
  font-weight: 700;
  color: var(--accent-green);
  margin-right: 4px;
}

.dev-code-block {
  background: var(--bg-tertiary);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 8px;
  padding: 10px;
  font-family: monospace;
  font-size: 11px;
  color: #34d399;
  overflow-x: auto;
  margin: 8px 0;
  white-space: pre;
}

.close-dev-modal {
  position: absolute;
  top: 20px;
  right: 20px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 18px;
  transition: var(--transition-fast);
}

.close-dev-modal:hover {
  color: #ffffff;
}

/* Animations */
@keyframes pulse {
  0% {
    transform: scale(0.9);
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.5);
  }
  70% {
    transform: scale(1);
    box-shadow: 0 0 0 6px rgba(16, 185, 129, 0);
  }
  100% {
    transform: scale(0.9);
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
  }
}

@keyframes shimmer {
  100% {
    transform: translateX(100%);
  }
}

/* Fully Mobile Responsive Adaptations */
@media (max-width: 600px) {
  .hero {
    padding: 40px 0 20px;
  }
  
  .hero h1 {
    font-size: 32px;
  }
  
  .hero p {
    font-size: 14px;
    margin-bottom: 24px;
  }
  
  .stats-row {
    gap: 10px;
  }
  
  .stat-card {
    padding: 12px 8px;
  }
  
  .stat-number {
    font-size: 20px;
  }
  
  .stat-label {
    font-size: 9px;
    letter-spacing: 0.5px;
  }
  
  .toolbar {
    margin: 24px 0 16px;
    padding: 10px;
    border-radius: 14px;
    gap: 12px;
  }
  
  .filter-tabs {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 4px;
  }
  
  .filter-btn {
    padding: 6px 12px;
    font-size: 13px;
    flex-shrink: 0;
  }
  
  .search-sort-group {
    flex-direction: column;
    width: 100%;
    gap: 8px;
  }
  
  .search-box {
    width: 100%;
  }
  
  .sort-select {
    width: 100%;
    padding: 10px;
  }

  /* 2-column Layout for Receipts on Mobile */
  .proofs-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-bottom: 40px;
  }
  
  .proof-card {
    border-radius: 12px;
  }
  
  .proof-card::before {
    border-radius: 12px;
  }
  
  .proof-media-wrapper {
    aspect-ratio: 1/1; /* Square cards on mobile look extremely neat */
  }
  
  .proof-info {
    padding: 8px;
  }
  
  .proof-title {
    font-size: 12px;
    margin-bottom: 4px;
    -webkit-line-clamp: 1; /* single line name to save space */
  }
  
  .proof-meta {
    font-size: 10px;
  }
  
  .proof-size {
    display: none; /* Hide file size on mobile list for cleaner layout */
  }

  /* Lightbox Mobile layout */
  .lightbox-content-wrapper {
    padding: 12px;
    height: 95vh;
  }
  
  .lightbox-media-container img {
    max-height: 65vh;
  }
  
  .lightbox-media-container iframe {
    height: 65vh;
  }
  
  .lightbox-info {
    margin-top: 10px;
    padding: 10px;
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }
  
  .lightbox-details {
    text-align: center;
  }
  
  .lightbox-meta {
    justify-content: center;
  }
  
  .lightbox-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    width: 100%;
  }
  
  .lightbox-btn {
    justify-content: center;
    padding: 10px;
    font-size: 12px;
  }
  
  .close-lightbox {
    top: 12px;
    right: 12px;
    width: 36px;
    height: 36px;
    font-size: 14px;
  }
  
  .nav-arrow {
    display: none; /* Hide desktop side arrows on mobile; will rely on touch and bottom nav or swipe, but let's provide visual controls inside the lightbox info or simple icons */
  }
}