/* Navigation scroll effect */
.nav-scrolled {
  background-color: rgba(17, 17, 24, 0.95) !important;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
}

/* Animated nav underlines */
.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: #3b82f6;
  transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* Scroll progress bar */
#scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, #3b82f6, #60a5fa);
  z-index: 9999;
  transition: width 0.1s linear;
  box-shadow: 0 0 8px rgba(59, 130, 246, 0.6);
}

/* Glow button */
.glow-btn {
  box-shadow: 0 0 15px rgba(59, 130, 246, 0.3);
  transition: box-shadow 0.3s ease, background-color 0.3s ease, color 0.3s ease;
}

.glow-btn:hover {
  box-shadow: 0 0 25px rgba(59, 130, 246, 0.6), 0 0 50px rgba(59, 130, 246, 0.2);
}

/* Glow outline button */
.glow-btn-outline {
  box-shadow: 0 0 10px rgba(59, 130, 246, 0.15);
  transition: box-shadow 0.3s ease, background-color 0.3s ease, color 0.3s ease;
}

.glow-btn-outline:hover {
  box-shadow: 0 0 20px rgba(59, 130, 246, 0.4), 0 0 40px rgba(59, 130, 246, 0.15);
}

/* Card lift + glow + tilt on hover */
.portfolio-card {
  transition: box-shadow 0.3s ease;
  transform-style: preserve-3d;
  perspective: 800px;
}

.portfolio-card:hover {
  box-shadow: 0 8px 30px rgba(59, 130, 246, 0.2), 0 0 15px rgba(59, 130, 246, 0.1);
}

.portfolio-card.hidden {
  opacity: 0;
  transform: scale(0.95);
  pointer-events: none;
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

/* Form input glow on focus */
.glow-input:focus {
  box-shadow: 0 0 0 2px #3b82f6, 0 0 15px rgba(59, 130, 246, 0.25);
}

/* Gradient heading */
.gradient-heading {
  background: linear-gradient(135deg, #f1f5f9 0%, #3b82f6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Section divider */
.section-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.4) 30%, rgba(59, 130, 246, 0.4) 70%, transparent);
  box-shadow: 0 0 8px rgba(59, 130, 246, 0.15);
}

/* Staggered fade-in animation */
.fade-in-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Lightbox */
.lightbox-open {
  overflow: hidden;
}

/* Hero parallax */
.parallax-bg {
  will-change: transform;
}

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

/* Designer section */
.colour-picker {
  -webkit-appearance: none;
  appearance: none;
  padding: 2px;
}

.colour-picker::-webkit-color-swatch-wrapper {
  padding: 2px;
}

.colour-picker::-webkit-color-swatch {
  border: none;
  border-radius: 6px;
}

.colour-picker::-moz-color-swatch {
  border: none;
  border-radius: 6px;
}

.logo-dropzone {
  min-height: 100px;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.logo-dropzone.drag-over {
  border-color: #3b82f6;
  background-color: rgba(59, 130, 246, 0.05);
}

.logo-dropzone.has-logo {
  border-color: #3b82f6;
  border-style: solid;
}

.canvas-container {
  background: repeating-conic-gradient(#1a1a24 0% 25%, #111118 0% 50%) 50% / 20px 20px;
}

.canvas-container canvas {
  display: block;
  max-width: 100%;
  height: auto;
}

/* Turntable scroll-scrub */
#portfolio {
  position: relative;
  min-height: 300vh;
}

@media (max-width: 768px) {
  #portfolio {
    min-height: auto;
  }
}

.turntable {
  position: sticky;
  top: 10rem;
  height: calc(100vh - 10rem);
  display: flex;
  align-items: center;
  justify-content: center;
  user-select: none;
  -webkit-user-select: none;
  pointer-events: none;
}

.turntable-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2vw;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.turntable-item {
  flex: 1 1 0;
  min-width: 0;
  max-width: 30%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.turntable-row img {
  display: block;
  max-height: 60vh;
  width: auto;
  height: auto;
  object-fit: contain;
}

.turntable-label {
  text-align: center;
  color: #94a3b8;
  font-size: 0.85rem;
  line-height: 1.5;
  margin-top: 1rem;
  pointer-events: auto;
}

.turntable-label strong {
  color: #f1f5f9;
  font-size: 1rem;
}

@media (max-width: 768px) {
  .turntable {
    position: relative;
    top: auto;
    height: auto;
  }
  .turntable-row {
    flex-direction: column;
    align-items: center;
    gap: 2rem;
  }
  .turntable-item {
    max-width: 80%;
    width: 80%;
    flex: none;
  }
  .turntable-row img {
    max-height: 50vh;
  }
  .turntable-label {
    font-size: 0.85rem;
  }
  .turntable-label strong {
    font-size: 1rem;
  }
}

#three-container {
  width: 400px;
  height: 560px;
  max-width: 100%;
  cursor: grab;
}

#three-container:active {
  cursor: grabbing;
}

#three-container canvas {
  display: block;
  max-width: 100%;
  height: auto !important;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .fade-in-up {
    opacity: 1;
    transform: none;
    transition: none;
  }
  html {
    scroll-behavior: auto;
  }
  .portfolio-card {
    transition: none;
  }
  .portfolio-card:hover {
    transform: none;
  }
  .parallax-bg {
    transform: none !important;
  }
  .nav-link::after {
    transition: none;
  }
  #scroll-progress {
    transition: none;
  }
}