/* Modern Dark Glassmorphism CSS Design System */
:root {
  --bg-dark: #090d16;
  --bg-card: rgba(17, 24, 39, 0.75);
  --bg-card-hover: rgba(31, 41, 55, 0.85);
  --bg-input: rgba(15, 23, 42, 0.9);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(99, 102, 241, 0.6);
  
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --primary-light: rgba(99, 102, 241, 0.15);
  --secondary: #06b6d4;
  --accent-green: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;
  
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --text-dim: #6b7280;
  
  --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.15);
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

body {
  background-color: var(--bg-dark);
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(99, 102, 241, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 85% 85%, rgba(6, 182, 212, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 50% 50%, rgba(16, 185, 129, 0.04) 0%, transparent 60%);
  background-attachment: fixed;
  color: var(--text-main);
  font-family: var(--font-sans);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: #1f293d; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #374151; }

.app-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 1.5rem;
}

.app-container.admin {
  max-width: 1400px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1rem;
  border-radius: 0.6rem;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 1px solid transparent;
  font-family: inherit;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  color: white;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.25);
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
  background: rgba(31, 41, 55, 0.8);
  color: var(--text-main);
  border-color: var(--border-color);
}
.btn-secondary:hover {
  background: rgba(55, 65, 81, 0.9);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-success {
  background: linear-gradient(135deg, #10b981, #059669);
  color: white;
}

.btn-sm {
  padding: 0.35rem 0.65rem;
  font-size: 0.8rem;
  border-radius: 0.45rem;
}

.btn-icon { padding: 0.5rem; border-radius: 0.5rem; }

.btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* Progress Bar */
.progress-bar-container {
  width: 100%;
  height: 8px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 999px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, #6366f1, #06b6d4, #10b981);
  border-radius: 999px;
  transition: width 0.4s ease;
}

/* Search Chips */
.search-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.35rem 0.6rem;
  background: rgba(31, 41, 55, 0.6);
  border: 1px solid var(--border-color);
  border-radius: 0.4rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  font-family: inherit;
}
.search-chip:hover {
  background: rgba(55, 65, 81, 0.8);
  color: white;
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-1px);
}
.search-chip.google:hover { border-color: #4285f4; color: #60a5fa; }
.search-chip.linkedin:hover { border-color: #0a66c2; color: #38bdf8; }
.search-chip.guess:hover { border-color: #f59e0b; color: #fbbf24; }

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}
.badge-missing {
  background: rgba(244, 63, 94, 0.15);
  color: #fda4af;
  border: 1px solid rgba(244, 63, 94, 0.3);
}
.badge-found {
  background: rgba(16, 185, 129, 0.15);
  color: #6ee7b7;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  padding: 1rem;
}
.modal-content {
  background: #111827;
  border: 1px solid var(--border-color);
  border-radius: 1rem;
  width: 100%;
  max-width: 600px;
  padding: 1.5rem;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
  max-height: 90vh;
  overflow-y: auto;
}

/* Toast */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 1000;
}
.toast {
  background: #1e293b;
  border: 1px solid var(--border-focus);
  color: white;
  padding: 0.85rem 1.25rem;
  border-radius: 0.6rem;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 600;
  animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
@keyframes slideUp {
  from { transform: translateY(100%); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* Admin Table */
.admin-table-container {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 0.85rem;
  overflow-x: auto;
}
.admin-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.875rem;
}
.admin-table th {
  background: rgba(15, 23, 42, 0.9);
  padding: 0.85rem 1rem;
  color: var(--text-muted);
  font-weight: 600;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
  position: sticky;
  top: 0;
  z-index: 2;
}
.admin-table td {
  padding: 0.65rem 1rem;
  border-bottom: 1px solid var(--border-color);
  vertical-align: middle;
}
.admin-table tr:hover { background: var(--bg-card-hover); }

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  padding: 1rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.stat-icon {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}
.stat-info .stat-value {
  font-size: 1.35rem;
  font-weight: 700;
  color: white;
}
.stat-info .stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Filter tabs */
.filter-tabs {
  display: flex;
  gap: 0.4rem;
  background: rgba(15, 23, 42, 0.8);
  padding: 0.25rem;
  border-radius: 0.6rem;
  border: 1px solid var(--border-color);
  flex-wrap: wrap;
}
.tab-btn {
  padding: 0.45rem 0.85rem;
  border-radius: 0.45rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
}
.tab-btn.active {
  background: var(--primary);
  color: white;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

/* Welcome Screen */
.welcome-screen {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.welcome-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 1.25rem;
  padding: 3rem 2.5rem;
  text-align: center;
  max-width: 500px;
  width: 100%;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
}
.welcome-card h1 {
  font-size: 1.75rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  background: linear-gradient(to right, #ffffff, #d1d5db);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.welcome-card p {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

/* Contributor Header */
.contributor-header {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 1rem;
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

/* Admin Header */
.admin-header {
  background: rgba(17, 24, 39, 0.8);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: 1rem;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

/* Contributor progress dot trail */
.dot-trail {
  display: flex;
  gap: 3px;
  flex-wrap: wrap;
  margin-top: 0.75rem;
}
.dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  transition: all 0.2s;
}
.dot.done { background: #10b981; }
.dot.skipped { background: #f59e0b; }
.dot.current { background: #6366f1; box-shadow: 0 0 8px #6366f1; width: 8px; height: 8px; }

/* Admin search */
.admin-search {
  width: 100%;
  padding: 0.65rem 1rem;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 0.6rem;
  color: white;
  font-size: 0.9rem;
  outline: none;
  transition: all 0.2s;
  font-family: inherit;
}
.admin-search:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

/* Submission tag in admin */
.submission-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.2rem 0.5rem;
  border-radius: 0.3rem;
  font-size: 0.75rem;
  margin: 0.15rem;
  font-family: var(--font-mono);
}
.submission-tag.has-email {
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #6ee7b7;
}
.submission-tag.skipped {
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.3);
  color: #fcd34d;
}