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

:root {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --glass-bg: rgba(30, 41, 59, 0.7);
  --glass-border: rgba(255, 255, 255, 0.08);
}

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

body {
  font-family: 'Outfit', sans-serif;
  background-color: var(--bg-primary);
  background-image: 
    radial-gradient(at 0% 0%, rgba(59, 130, 246, 0.15) 0px, transparent 50%),
    radial-gradient(at 100% 100%, rgba(16, 185, 129, 0.1) 0px, transparent 50%);
  background-attachment: fixed;
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3 {
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* Page Layout */
.page {
  display: none;
  min-height: 100vh;
  padding: 20px;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.page.active {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 1;
}

/* Containers */
.container {
  background: var(--glass-bg);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  padding: 48px;
  width: 100%;
  max-width: 480px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.container:hover {
  transform: translateY(-4px);
}

.wide-container {
  max-width: 1200px;
}

/* Logo Area */
.logo {
  text-align: center;
  margin-bottom: 40px;
}

.logo h1 {
  font-size: 2.75rem;
  background: linear-gradient(135deg, #60a5fa, #3b82f6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 8px;
}

.logo p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  font-weight: 300;
}

/* Forms */
.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
}

input, select {
  width: 100%;
  padding: 16px 20px;
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  background: rgba(15, 23, 42, 0.6);
  color: var(--text-primary);
  font-size: 1rem;
  font-family: 'Outfit', sans-serif;
  transition: all 0.3s ease;
}

input:focus, select:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(15, 23, 42, 0.8);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

select option {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

/* Buttons */
.btn {
  width: 100%;
  padding: 16px;
  background: var(--accent);
  color: white;
  font-size: 1rem;
  font-weight: 600;
  font-family: 'Outfit', sans-serif;
  border: none;
  border-radius: 16px;
  cursor: pointer;
  transition: all 0.3s ease;
  margin-bottom: 12px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
}

.btn:hover:not(:disabled) {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 20px -10px var(--accent);
}

.btn:active:not(:disabled) {
  transform: translateY(0);
}

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

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
}

.btn-secondary:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.1);
  box-shadow: none;
}

.btn-admin {
  background: rgba(16, 185, 129, 0.1);
  color: var(--success);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.btn-admin:hover:not(:disabled) {
  background: rgba(16, 185, 129, 0.2);
  box-shadow: 0 10px 20px -10px var(--success);
}

.btn-small {
  width: auto;
  padding: 8px 16px;
  font-size: 0.9rem;
  border-radius: 12px;
  margin-bottom: 0;
}

.btn-validate {
  background: var(--success);
}

.btn-validate:hover {
  background: #059669;
}

.delete-btn {
  padding: 8px 16px;
  background: rgba(239, 68, 68, 0.1);
  color: var(--danger);
  border: 1px solid rgba(239, 68, 68, 0.2);
  border-radius: 12px;
  cursor: pointer;
  font-weight: 500;
  transition: all 0.2s;
}

.delete-btn:hover {
  background: var(--danger);
  color: white;
}

/* Navigation */
.nav-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
  padding: 16px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 1000;
}

.nav-title {
  font-size: 1.25rem;
  font-weight: 600;
  background: linear-gradient(135deg, #fff, #94a3b8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-user {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-btn {
  padding: 8px 16px;
  background: transparent;
  border: 1px solid var(--glass-border);
  border-radius: 10px;
  color: var(--text-primary);
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s;
}

.nav-btn:hover {
  background: rgba(255, 255, 255, 0.05);
}

/* Dashboard & Stats */
.admin-container {
  max-width: 1200px;
  margin-top: 100px;
  width: 100%;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 32px;
}

.admin-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  margin-bottom: 40px;
}

.stat-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 32px;
  text-align: center;
  transition: transform 0.3s ease;
}

.stat-card:hover {
  transform: translateY(-4px);
  border-color: rgba(59, 130, 246, 0.3);
}

.stat-number {
  font-size: 3rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
}

/* Lists */
.user-item, .report-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  margin-bottom: 16px;
  background: rgba(30, 41, 59, 0.4);
  border-radius: 16px;
  border: 1px solid var(--glass-border);
  transition: all 0.2s;
}

.user-item:hover, .report-item:hover {
  background: rgba(30, 41, 59, 0.6);
  border-color: rgba(255, 255, 255, 0.15);
}

.report-item.retrieved {
  border-left: 4px solid var(--success);
}

.user-name, .report-plaque {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.user-role, .report-details {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
}

.report-status {
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
}

.status-pending {
  background: rgba(245, 158, 11, 0.1);
  color: var(--warning);
  border: 1px solid rgba(245, 158, 11, 0.2);
}

.status-retrieved {
  background: rgba(16, 185, 129, 0.1);
  color: var(--success);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

/* Rankings */
.ranking-item {
  display: flex;
  align-items: center;
  padding: 24px;
  margin-bottom: 16px;
  background: var(--glass-bg);
  border-radius: 20px;
  border: 1px solid var(--glass-border);
  transition: all 0.3s ease;
}

.ranking-item.top-3 {
  background: linear-gradient(145deg, rgba(30, 41, 59, 0.8), rgba(15, 23, 42, 0.9));
  border-color: rgba(245, 158, 11, 0.3);
}

.ranking-position {
  font-size: 2.5rem;
  font-weight: 700;
  min-width: 80px;
  text-align: center;
  color: var(--text-secondary);
}

.ranking-position.first { color: #fbbf24; }
.ranking-position.second { color: #94a3b8; }
.ranking-position.third { color: #b45309; }

.ranking-info {
  flex: 1;
  padding: 0 20px;
}

.ranking-name {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.ranking-stats {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.ranking-count {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent);
}

/* Messages */
.error-message, .success-message {
  padding: 12px 16px;
  border-radius: 12px;
  margin-top: 16px;
  font-size: 0.95rem;
  text-align: center;
  display: none;
  animation: fadeIn 0.3s ease;
}

.error-message {
  background: rgba(239, 68, 68, 0.1);
  color: var(--danger);
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.success-message {
  background: rgba(16, 185, 129, 0.1);
  color: var(--success);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

/* Filters */
.filter-buttons {
  display: flex;
  gap: 12px;
  background: rgba(15, 23, 42, 0.4);
  padding: 6px;
  border-radius: 16px;
  border: 1px solid var(--glass-border);
}

.filter-btn {
  padding: 8px 20px;
  background: transparent;
  border: none;
  border-radius: 10px;
  color: var(--text-secondary);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

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

.filter-btn.active {
  background: var(--accent);
  color: white;
}

/* Animations & Utilities */
.fade-in {
  animation: fadeInUp 0.5s ease-out forwards;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.loading {
  position: relative;
  color: transparent !important;
}

.loading::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-secondary);
  background: var(--glass-bg);
  border-radius: 24px;
  border: 1px dashed var(--glass-border);
}

.empty-state h3 {
  color: var(--text-primary);
  margin-bottom: 8px;
}

/* Responsive */
@media (max-width: 768px) {
  .container {
    padding: 32px 24px;
    margin: 20px;
  }
  
  .nav-header {
    padding: 16px 20px;
    flex-direction: column;
    gap: 16px;
  }
  
  .admin-container {
    margin-top: 140px;
    padding: 0 20px;
  }
  
  .report-item, .user-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  
  .filter-buttons {
    flex-wrap: wrap;
    width: 100%;
  }
  
  .filter-btn {
    flex: 1;
    text-align: center;
  }
}