/* ========================================
   ButtonBass Navigation Styles
   Save to: css/nav-styles.css
   ======================================== */

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

.instrument-nav {
  --nav-bg-card: #12121a;
  --nav-bg-hover: #1a1a2e;
  --nav-accent-cyan: #00d4ff;
  --nav-accent-magenta: #ff00aa;
  --nav-accent-purple: #8b5cf6;
  --nav-accent-orange: #ff6b35;
  --nav-accent-green: #10b981;
  --nav-text-primary: #f0f0f5;
  --nav-text-muted: #6b7280;
  --nav-border-subtle: rgba(255, 255, 255, 0.06);

  font-family: 'Outfit', sans-serif;
  max-width: 1400px;
  margin: 0 auto;
  background: linear-gradient(145deg, var(--nav-bg-card) 0%, rgba(18, 18, 26, 0.8) 100%);
  border-radius: 24px;
  padding: 2rem;
  border: 1px solid var(--nav-border-subtle);
  box-shadow: 0 4px 60px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

/* Header */
.instrument-nav .nav-header {
  text-align: center;
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--nav-border-subtle);
}

.instrument-nav .nav-header h1 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  background: linear-gradient(135deg, var(--nav-accent-cyan), var(--nav-accent-magenta));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin: 0 0 0.5rem 0;
}

.instrument-nav .nav-header p {
  color: var(--nav-text-muted);
  font-size: 0.875rem;
  margin: 0;
}

/* Category Sections */
.instrument-nav .nav-category {
  margin-bottom: 2rem;
}

.instrument-nav .nav-category:last-child {
  margin-bottom: 0;
}

.instrument-nav .category-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  padding-left: 0.5rem;
}

.instrument-nav .category-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  color: white;
}

.instrument-nav .category-icon.games {
  background: linear-gradient(135deg, var(--nav-accent-green), #059669);
}
.instrument-nav .category-icon.cubes {
  background: linear-gradient(135deg, var(--nav-accent-cyan), #0099cc);
}
.instrument-nav .category-icon.pianos {
  background: linear-gradient(135deg, var(--nav-accent-magenta), #cc0088);
}
.instrument-nav .category-icon.guitars {
  background: linear-gradient(135deg, var(--nav-accent-orange), #cc5500);
}
.instrument-nav .category-icon.tools {
  background: linear-gradient(135deg, var(--nav-accent-purple), #6b3fc7);
}

.instrument-nav .category-title {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--nav-text-muted);
}

.instrument-nav .category-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--nav-border-subtle), transparent);
}

/* Grid */
.instrument-nav .nav-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(70px, 1fr));
  gap: 0.75rem;
}

.instrument-nav .nav-item {
  position: relative;
}

.instrument-nav .nav-item a {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0.75rem 0.5rem;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid transparent;
  text-decoration: none;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.instrument-nav .nav-item a:hover {
  background: var(--nav-bg-hover);
  border-color: var(--nav-border-subtle);
  transform: translateY(-4px);
}

/* Category hover glows */
.instrument-nav .nav-category.games .nav-item a:hover {
  box-shadow: 0 0 20px rgba(16, 185, 129, 0.3);
  border-color: rgba(16, 185, 129, 0.3);
}
.instrument-nav .nav-category.cubes .nav-item a:hover {
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
  border-color: rgba(0, 212, 255, 0.3);
}
.instrument-nav .nav-category.pianos .nav-item a:hover {
  box-shadow: 0 0 20px rgba(255, 0, 170, 0.3);
  border-color: rgba(255, 0, 170, 0.3);
}
.instrument-nav .nav-category.guitars .nav-item a:hover {
  box-shadow: 0 0 20px rgba(255, 107, 53, 0.3);
  border-color: rgba(255, 107, 53, 0.3);
}
.instrument-nav .nav-category.tools .nav-item a:hover {
  box-shadow: 0 0 20px rgba(139, 92, 246, 0.3);
  border-color: rgba(139, 92, 246, 0.3);
}

.instrument-nav .nav-item img {
  width: 50px;
  height: 50px;
  object-fit: contain;
  transition: transform 0.25s ease;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
}

.instrument-nav .nav-item a:hover img {
  transform: scale(1.1);
}

.instrument-nav .nav-item .label {
  margin-top: 0.5rem;
  font-size: 0.625rem;
  font-weight: 500;
  color: var(--nav-text-muted);
  text-align: center;
  line-height: 1.2;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: color 0.25s ease;
}

.instrument-nav .nav-item a:hover .label {
  color: var(--nav-text-primary);
}

/* Responsive */
@media (max-width: 768px) {
  .instrument-nav {
    padding: 1.25rem;
    border-radius: 16px;
  }

  .instrument-nav .nav-grid {
    grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
    gap: 0.5rem;
  }

  .instrument-nav .nav-item a {
    padding: 0.5rem 0.25rem;
  }

  .instrument-nav .nav-item img {
    width: 40px;
    height: 40px;
  }

  .instrument-nav .nav-item .label {
    font-size: 0.5625rem;
  }

  .instrument-nav .category-header {
    margin-bottom: 0.75rem;
  }
}