/* Custom styles that complement Tailwind utilities */

/* Smooth scrolling */
html { scroll-behavior: smooth; }

/* Line clamp for card bio text */
.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.line-clamp-3 {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Filter panel slide animation on mobile */
#filter-panel {
  transition: transform 0.25s ease, opacity 0.25s ease;
}
#filter-panel.hidden-mobile {
  transform: translateX(-100%);
  opacity: 0;
  pointer-events: none;
}

/* Range slider styling */
input[type="range"] {
  -webkit-appearance: none;
  width: 100%;
  height: 4px;
  border-radius: 2px;
  background: #E0E7FF;
  outline: none;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #4F46E5;
  cursor: pointer;
  border: 2px solid #fff;
  box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}

/* Availability calendar hover tooltip */
.cal-slot[title]:hover::after {
  content: attr(title);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: #1f2937;
  color: #fff;
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 4px;
  white-space: nowrap;
  pointer-events: none;
}

/* Sticky CTA button on profile page */
#sticky-cta {
  transition: opacity 0.2s ease, transform 0.2s ease;
}

/* Custom scrollbar (WebKit) */
::-webkit-scrollbar       { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: #F9FAFB; }
::-webkit-scrollbar-thumb { background: #D1D5DB; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #9CA3AF; }

/* Hero gradient animation */
.hero-gradient {
  background: linear-gradient(135deg, #4F46E5 0%, #7C3AED 50%, #6366F1 100%);
  background-size: 200% 200%;
  animation: gradientShift 8s ease infinite;
}
@keyframes gradientShift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Card hover lift */
article.tutor-card {
  will-change: transform;
}

/* Badge tooltip */
[title] { cursor: help; }

/* Focus ring for accessibility */
button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 2px solid #4F46E5;
  outline-offset: 2px;
}