:root {
  /* Design System - Dark Premium Palette */
  --bg-base: #080a0f;
  --bg-surface: #111420;
  --bg-surface-hover: #181d2e;
  --bg-surface-active: #20273d;
  
  --primary: #6366f1; /* Indigo Moderno */
  --primary-hover: #4f46e5;
  --primary-glow: rgba(99, 102, 241, 0.15);
  
  --accent: #d946ef;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dark: #64748b;
  
  --border: #222a3d;
  --border-hover: #313d59;
  
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-title: 'Inter', system-ui, -apple-system, sans-serif;
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.6);
  --glow-primary: 0 0 20px rgba(99, 102, 241, 0.3);
  
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  background-color: var(--bg-base);
  color: var(--text-main);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  line-height: 1.5;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  font-weight: 700;
  letter-spacing: -0.02em;
}

button, input, select, textarea {
  font-family: var(--font-sans);
  font-size: inherit;
  color: inherit;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-base);
}
::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--border-hover);
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.spinner {
  animation: spin 1s linear infinite !important;
}

.animate-fade-in {
  animation: fadeIn var(--transition-normal);
}

.glass {
  background: rgba(17, 20, 32, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
}

.app-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  border-bottom: 1px solid var(--border);
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: var(--primary-glow);
  border: 1px solid rgba(99, 102, 241, 0.3);
}

.logo-text {
  font-family: var(--font-title);
  font-weight: 800;
  font-size: 18px;
  background: linear-gradient(135deg, #ffffff 0%, #cbd5e1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 13.5px;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--primary);
  color: #ffffff;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background: var(--primary-hover);
  box-shadow: var(--glow-primary);
}

.btn-secondary {
  background: var(--bg-surface);
  color: var(--text-main);
  border-color: var(--border);
}

.btn-secondary:hover {
  background: var(--bg-surface-hover);
  border-color: var(--border-hover);
}

/* Layout Principal com Sidebar */
.main-content {
  display: flex;
  flex: 1;
}

.filter-panel {
  width: 280px;
  flex-shrink: 0;
  padding: 24px;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.filter-section-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-dark);
  margin-bottom: 12px;
}

.filter-input {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-base);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-size: 13px;
  transition: border-color var(--transition-fast);
}

.filter-input:focus {
  outline: none;
  border-color: var(--primary);
}

.filter-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.filter-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  background: transparent;
  border: none;
  width: 100%;
  text-align: left;
}

.filter-item:hover {
  background: var(--bg-surface-hover);
  color: var(--text-main);
}

.filter-item.active {
  background: var(--primary-glow);
  color: var(--primary);
  font-weight: 600;
}

.filter-count {
  font-size: 11px;
  padding: 2px 6px;
  border-radius: 10px;
  background: var(--bg-base);
  color: var(--text-dark);
}

.content-area {
  flex: 1;
  padding: 28px 36px;
}

/* Ads Grid */
.ads-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.ad-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.ad-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-md);
}

.ad-card-media {
  width: 100%;
  height: 180px;
  background: var(--bg-base);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ad-card-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.ad-card-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  backdrop-filter: blur(8px);
}

.badge-pending { background: rgba(245, 158, 11, 0.2); color: #f59e0b; border: 1px solid rgba(245, 158, 11, 0.4); }
.badge-processing { background: rgba(99, 102, 241, 0.2); color: #818cf8; border: 1px solid rgba(99, 102, 241, 0.4); }
.badge-completed { background: rgba(16, 185, 129, 0.2); color: #34d399; border: 1px solid rgba(16, 185, 129, 0.4); }
.badge-failed { background: rgba(239, 68, 68, 0.2); color: #f87171; border: 1px solid rgba(239, 68, 68, 0.4); }

.ad-card-nicho {
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 700;
  background: rgba(15, 23, 42, 0.75);
  color: var(--accent);
  border: 1px solid rgba(217, 70, 239, 0.3);
  backdrop-filter: blur(8px);
}

.ad-card-body {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}

.ad-card-page {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-main);
  line-clamp: 2;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.ad-card-copy {
  font-size: 12px;
  color: var(--text-muted);
}

.ad-card-footer {
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  background: rgba(8, 10, 15, 0.4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-dark);
}