:root {
  --bg-primary: #080c15;
  --bg-secondary: #0e1626;
  --bg-card: rgba(16, 24, 40, 0.75);
  --bg-card-hover: rgba(22, 33, 56, 0.85);
  --border-subtle: rgba(255, 255, 255, 0.07);
  --border-glow: rgba(99, 102, 241, 0.25);
  --border-active: #6366f1;
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --accent-emerald: #10b981;
  --accent-emerald-glow: rgba(16, 185, 129, 0.15);
  --accent-indigo: #6366f1;
  --accent-indigo-glow: rgba(99, 102, 241, 0.15);
  --accent-cyan: #06b6d4;
  --accent-violet: #8b5cf6;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5), 0 0 0 1px var(--border-subtle);
  --shadow-glow: 0 0 25px -5px rgba(99, 102, 241, 0.25);
  --transition-fast: 0.18s ease;
  --transition-smooth: 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
  background-image: 
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(99, 102, 241, 0.12), transparent),
    radial-gradient(ellipse 60% 40% at 85% 90%, rgba(16, 185, 129, 0.08), transparent);
  background-attachment: fixed;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 7px;
  height: 7px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.25);
}

/* Layout */
.app-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 4rem;
}

/* Header */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  margin-bottom: 2rem;
  box-shadow: var(--shadow-card);
}

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

.brand-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.35);
}

.brand-title {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(to right, #ffffff, #cbd5e1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
}

.header-status {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.credits-meter {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.25);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  color: #34d399;
}

.credits-meter .dot {
  width: 8px;
  height: 8px;
  background: #10b981;
  border-radius: 50%;
  box-shadow: 0 0 10px #10b981;
  animation: pulse-dot 2s infinite ease-in-out;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

.btn-refresh-credits {
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: var(--transition-fast);
}

.btn-refresh-credits:hover {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.05);
}

/* Target Spotlight Card (Dra. Vet vs Unipatas) */
.spotlight-card {
  position: relative;
  background: linear-gradient(135deg, rgba(22, 33, 56, 0.9), rgba(14, 22, 38, 0.9));
  border: 1px solid rgba(99, 102, 241, 0.25);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow-glow), var(--shadow-card);
  overflow: hidden;
}

.spotlight-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #6366f1, #06b6d4, #10b981);
}

.spotlight-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.spotlight-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(99, 102, 241, 0.15);
  border: 1px solid rgba(99, 102, 241, 0.3);
  color: #a5b4fc;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.35rem 0.8rem;
  border-radius: var(--radius-full);
}

.spotlight-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-top: 0.5rem;
}

.spotlight-query {
  color: #38bdf8;
  font-family: monospace;
  font-size: 1.15rem;
  background: rgba(6, 182, 212, 0.1);
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(6, 182, 212, 0.2);
}

.target-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.25rem;
  margin-top: 1rem;
}

.target-competitor {
  background: rgba(11, 17, 30, 0.7);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  position: relative;
  transition: var(--transition-smooth);
}

.target-competitor.is-active-client {
  border-color: rgba(16, 185, 129, 0.4);
  background: linear-gradient(180deg, rgba(16, 185, 129, 0.08), rgba(11, 17, 30, 0.7));
}

.target-rank-pill {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  font-size: 1.25rem;
  font-weight: 800;
  padding: 0.2rem 0.75rem;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.rank-gold {
  color: #fbbf24;
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.rank-silver {
  color: #38bdf8;
  background: rgba(56, 189, 248, 0.15);
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.target-name {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.target-url {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  margin-bottom: 0.75rem;
}

.target-url:hover {
  color: #38bdf8;
  text-decoration: underline;
}

.target-details {
  font-size: 0.85rem;
  color: var(--text-secondary);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 0.75rem;
  margin-top: 0.75rem;
}

.target-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.5rem;
}

.tag-badge {
  font-size: 0.72rem;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-secondary);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.tag-badge.badge-success {
  color: #34d399;
  background: rgba(16, 185, 129, 0.1);
  border-color: rgba(16, 185, 129, 0.2);
}

/* Tabs Navigation */
.tabs-nav {
  display: flex;
  gap: 0.5rem;
  background: var(--bg-card);
  padding: 0.4rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  margin-bottom: 1.5rem;
  overflow-x: auto;
}

.tab-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition-fast);
  white-space: nowrap;
}

.tab-btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.05);
}

.tab-btn.active {
  color: #fff;
  background: var(--accent-indigo);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.35);
}

/* Tab Content */
.tab-pane {
  display: none;
  animation: fadeIn 0.3s ease;
}

.tab-pane.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Search Box Form */
.search-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-card);
}

.search-form {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.input-group {
  flex: 1;
  min-width: 260px;
  position: relative;
}

.input-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
}

.text-input, .select-input {
  width: 100%;
  padding: 0.8rem 1rem;
  background: rgba(11, 17, 30, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  color: #fff;
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition-fast);
}

.text-input:focus, .select-input:focus {
  border-color: var(--accent-indigo);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.25);
}

.btn-search {
  align-self: flex-end;
  background: linear-gradient(135deg, #6366f1, #4f46e5);
  color: #fff;
  border: none;
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition-fast);
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.35);
}

.btn-search:hover {
  background: linear-gradient(135deg, #4f46e5, #4338ca);
  transform: translateY(-1px);
}

.btn-search:active {
  transform: translateY(0);
}

/* Results Section */
.results-container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.serp-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  transition: var(--transition-smooth);
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
}

.serp-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(99, 102, 241, 0.3);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}

.serp-rank-badge {
  font-size: 1.1rem;
  font-weight: 800;
  min-width: 42px;
  height: 42px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.serp-rank-badge.top-1 {
  background: rgba(245, 158, 11, 0.15);
  color: #fbbf24;
  border-color: rgba(245, 158, 11, 0.3);
}

.serp-rank-badge.top-2 {
  background: rgba(56, 189, 248, 0.15);
  color: #38bdf8;
  border-color: rgba(56, 189, 248, 0.3);
}

.serp-rank-badge.top-3 {
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border-color: rgba(16, 185, 129, 0.3);
}

.serp-content {
  flex: 1;
}

.serp-domain-pill {
  font-size: 0.78rem;
  color: #94a3b8;
  margin-bottom: 0.25rem;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  word-break: break-all;
}

.serp-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: #38bdf8;
  text-decoration: none;
  display: inline-block;
  margin-bottom: 0.35rem;
  line-height: 1.35;
}

.serp-title:hover {
  text-decoration: underline;
}

.serp-snippet {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.45;
}

/* Keyword Explorer Table */
.kw-table-container {
  overflow-x: auto;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

.kw-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9rem;
}

.kw-table th {
  background: rgba(11, 17, 30, 0.9);
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
}

.kw-table td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  color: var(--text-primary);
}

.kw-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

.kd-bar-wrapper {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.kd-bar {
  flex: 1;
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  overflow: hidden;
  max-width: 80px;
}

.kd-fill {
  height: 100%;
  border-radius: var(--radius-full);
}

.kd-easy { background: #10b981; }
.kd-medium { background: #f59e0b; }
.kd-hard { background: #ef4444; }

/* Loading State */
.loading-state {
  text-align: center;
  padding: 3rem 1rem;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(99, 102, 241, 0.15);
  border-top-color: var(--accent-indigo);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 1rem;
}

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

/* Empty State */
.empty-state {
  text-align: center;
  padding: 4rem 1rem;
  color: var(--text-muted);
}

.empty-icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
  opacity: 0.6;
}

/* Responsive */
@media (max-width: 768px) {
  .app-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
  .header-status {
    width: 100%;
    justify-content: space-between;
  }
  .search-form {
    flex-direction: column;
  }
  .btn-search {
    width: 100%;
    justify-content: center;
  }
}