/* ChromaBlind Studio - Main Stylesheet (Modern Light Mode) */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600;700&display=swap');
@import url('./variables.css');
@import url('./components.css');

/* CSS Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  color-scheme: light;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-app);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background-image: 
    radial-gradient(circle at 12% 8%, rgba(37, 99, 235, 0.04) 0%, transparent 40%),
    radial-gradient(circle at 88% 82%, rgba(99, 102, 241, 0.04) 0%, transparent 40%),
    radial-gradient(circle at 50% 40%, rgba(139, 92, 246, 0.02) 0%, transparent 50%);
  background-attachment: fixed;
}

/* Custom Accessible Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-app);
}

::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: var(--radius-full);
  border: 2px solid var(--bg-app);
}

::-webkit-scrollbar-thumb:hover {
  background: #94a3b8;
}

/* Accessible Focus States */
:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

button, input, select {
  font: inherit;
}

a {
  color: var(--accent-primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* Tab Panels Visibility */
.view-panel {
  display: none;
  animation: fadeIn 200ms ease forwards;
}

.view-panel.active {
  display: block;
}

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

/* Utility Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.22rem 0.6rem;
  border-radius: var(--radius-full);
  font-size: 0.725rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.badge-info {
  background: var(--color-info-bg);
  color: var(--color-info);
  border: 1px solid rgba(2, 132, 199, 0.2);
}

.badge-pill-cyan {
  background: rgba(6, 182, 212, 0.1);
  color: #0891b2;
  border: 1px solid rgba(6, 182, 212, 0.2);
}

/* Responsive adjustments */
@media (max-width: 960px) {
  .dual-input-grid {
    grid-template-columns: 1fr;
    gap: 0.85rem;
  }
  .swap-colors-center {
    margin: 0.25rem 0;
  }
  .header-tier-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.65rem;
  }
}

@media (max-width: 768px) {
  .app-header {
    padding: 0.65rem 1rem;
  }
  .header-tier-top {
    flex-wrap: wrap;
    gap: 0.65rem;
  }
  .main-content {
    padding: 0 1rem;
    margin: 1rem auto 2rem;
  }
  .split-slider-container {
    height: 280px;
  }
}

@media (max-width: 520px) {
  .cmyk-sliders-grid {
    grid-template-columns: 1fr;
  }
}