:root {
  --bg-gradient: radial-gradient(circle at top left, #1e1b4b, #0f172a, #020617);
  --panel-bg: rgba(15, 23, 42, 0.65);
  --border-color: rgba(255, 255, 255, 0.08);
  --accent-color: #3b82f6;
  --accent-hover: #2563eb;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.5);
  --card-glow: 0 0 20px rgba(59, 130, 246, 0.15);
}

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

body {
  font-family: 'Outfit', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg-gradient);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header {
  padding: 1.5rem 2rem;
  border-bottom: 1px solid var(--border-color);
  backdrop-filter: blur(12px);
  background: rgba(15, 23, 42, 0.4);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, #3b82f6, #8b5cf6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

main {
  flex: 1;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.dashboard-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.card {
  background: var(--panel-bg);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1.75rem;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-color), transparent);
}

select {
  background-color: #0f172a;
  background-image: url("arrow-down.svg");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  background-size: 1.2rem;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 0.6rem 2.5rem 0.6rem 1rem;
  color: var(--text-primary);
  font-family: 'Outfit', sans-serif;
  font-size: 1rem;
  outline: none;
  cursor: pointer;
  transition: all 0.2s ease;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
}

select option {
  background: #0f172a;
  color: var(--text-primary);
}

select:focus {
  border-color: var(--accent-color);
  box-shadow: var(--card-glow);
}

.btn-primary {
  background: var(--accent-color);
  color: #fff;
  border: none;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.seo-section {
  color: var(--text-secondary);
  line-height: 1.7;
  text-align: left;
}

.seo-section h2 {
  color: var(--text-primary);
  margin-bottom: 1rem;
  font-size: 1.5rem;
}

.seo-section p {
  margin-bottom: 1rem;
}

footer {
  border-top: 1px solid var(--border-color);
  background: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(12px);
  padding: 3rem 2rem 1.5rem 2rem;
  margin-top: auto;
}

.footer-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
  margin-bottom: 3rem;
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-col h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  color: var(--text-primary);
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 0.75rem;
}

.footer-col ul li a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.2s ease;
}

.footer-col ul li a:hover {
  color: var(--accent-color);
}

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-bottom p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.lang-selector {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  justify-content: center;
}

.lang-link {
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-decoration: none;
  text-transform: uppercase;
  padding: 0.3rem 0.5rem;
  border-radius: 6px;
  transition: all 0.2s ease;
}

.lang-link:hover,
.lang-link.active {
  color: #fff;
  background: var(--accent-color);
}


.tool-ui { text-align: left; }

/* Match Columns Styles */
.match-columns {
  display: flex;
  justify-content: space-between;
  width: 100%;
  max-width: 600px;
  gap: 4rem;
  position: relative;
  z-index: 1;
}

@media (max-width: 600px) {
  .match-columns { gap: 1.5rem; }
}

.column {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  flex: 1;
  z-index: 2;
}

.match-item {
  min-height: 60px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  padding: 0.75rem 1rem;
  text-align: center;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  user-select: none;
}

.left-column .match-item {
  justify-content: flex-start;
  text-align: left;
}

.right-column .match-item {
  font-size: 3rem; /* Large flags */
  padding: 0.2rem;
}

.match-item:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.2);
}

.match-item.selected {
  background: rgba(59, 130, 246, 0.15) !important;
  border-color: var(--accent-color) !important;
  box-shadow: var(--card-glow);
  transform: translateY(-2px) scale(1.02);
}

.match-item.matched {
  background: rgba(16, 185, 129, 0.15) !important;
  border-color: #10b981 !important;
  color: #34d399 !important;
  cursor: default;
  pointer-events: none;
  opacity: 0.7;
}

.match-item.mismatched {
  background: rgba(239, 68, 68, 0.15) !important;
  border-color: #ef4444 !important;
  color: #f87171 !important;
  animation: shake 0.4s ease-in-out;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-5px); }
  50% { transform: translateX(5px); }
  75% { transform: translateX(-5px); }
}

#connections-svg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

.svg-line {
  stroke: #10b981;
  stroke-width: 3;
  stroke-linecap: round;
  fill: none;
  opacity: 0.5;
  transition: opacity 0.3s ease;
}