/**
 * Enhanced Button & Interactive Element Styles
 * Works with GSAP for micro-animations
 */

/* ====== Base Button Enhancements ====== */
.btn {
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
  transform-origin: center;
  will-change: transform;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s ease, height 0.6s ease;
}

.btn:hover::before {
  width: 300%;
  height: 300%;
}

/* Primary button glow effect */
.btn-primary,
.btn[type="submit"] {
  box-shadow: 0 4px 15px rgba(20, 157, 221, 0.3);
}

.btn-primary:hover,
.btn[type="submit"]:hover {
  box-shadow: 0 6px 25px rgba(20, 157, 221, 0.4);
}

/* ====== Social Link Animations ====== */
.social-links a {
  position: relative;
  transition: all 0.3s ease;
  transform-origin: center;
  will-change: transform;
}

.social-links a::after {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(20, 157, 221, 0.3) 0%, transparent 70%);
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: -1;
}

.social-links a:hover::after {
  opacity: 1;
}

/* ====== Navigation Link Effects ====== */
.nav-menu a {
  position: relative;
  transition: all 0.3s ease;
}

.nav-menu a::before {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #149ddd, #4fc3f7);
  transition: width 0.3s ease;
}

.nav-menu a:hover::before,
.nav-menu a.active::before {
  width: 100%;
}

/* ====== Card Hover States ====== */
.highlight-item,
.portfolio-item {
  transition: all 0.3s ease;
  will-change: transform, box-shadow;
}

.highlight-item {
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(20, 157, 221, 0.1);
}

.highlight-item:hover {
  border-color: rgba(20, 157, 221, 0.3);
  background: rgba(20, 157, 221, 0.05);
}

/* ====== Scroll Progress Bar ====== */
#scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, #149ddd, #0563bb, #4fc3f7);
  z-index: 9999;
  transform-origin: left;
}

/* ====== Section Reveal Preparation ====== */
.reveal-fade {
  opacity: 0;
}

.reveal-slide-up {
  opacity: 0;
  transform: translateY(30px);
}

.reveal-slide-left {
  opacity: 0;
  transform: translateX(-30px);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.9);
}

/* When JS is disabled, show content normally */
@media (scripting: none) {
  .reveal-fade,
  .reveal-slide-up,
  .reveal-slide-left,
  .reveal-scale {
    opacity: 1;
    transform: none;
  }
}

/* ====== Icon Animations ====== */
.bi, .bx, .ai {
  transition: transform 0.3s ease;
}

a:hover .bi,
a:hover .bx,
button:hover .bi,
button:hover .bx {
  transform: scale(1.1);
}

/* ====== Form Input Focus Effects ====== */
.form-control,
.form-select {
  transition: all 0.3s ease;
  border: 2px solid transparent;
}

.form-control:focus,
.form-select:focus {
  border-color: #149ddd;
  box-shadow: 0 0 0 4px rgba(20, 157, 221, 0.1);
}

/* ====== Back to Top Button ====== */
.back-to-top {
  transition: all 0.3s ease;
}

.back-to-top:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(20, 157, 221, 0.4);
}

/* ====== Loading Shimmer for Dynamic Content ====== */
.loading-shimmer {
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.1) 50%,
    rgba(255, 255, 255, 0) 100%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

/* ====== Reduced Motion ====== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .reveal-fade,
  .reveal-slide-up,
  .reveal-slide-left,
  .reveal-scale {
    opacity: 1;
    transform: none;
  }
  
  #scroll-progress {
    display: none;
  }
}

/* ====== Dark Mode Adjustments ====== */
[data-theme="dark"] .highlight-item {
  background: rgba(0, 0, 0, 0.2);
  border-color: rgba(20, 157, 221, 0.2);
}

[data-theme="dark"] .highlight-item:hover {
  background: rgba(20, 157, 221, 0.1);
  border-color: rgba(20, 157, 221, 0.4);
}

[data-theme="dark"] .btn::before {
  background: rgba(255, 255, 255, 0.05);
}