/* =============================================
   ZERO COLLECTION — Animations & Transitions
   ============================================= */

/* ── Marquee / Scrolling Text ── */
@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.marquee-container {
  overflow: hidden;
  white-space: nowrap;
  width: 100%;
}

.marquee-content {
  display: inline-flex;
  animation: marquee 30s linear infinite;
}

.marquee-content:hover {
  animation-play-state: paused;
}

.marquee-content span {
  display: inline-block;
  padding: 0 32px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

/* Fast marquee for announcement bar */
.marquee-content--fast {
  animation-duration: 20s;
}

/* ── Fade In Up ── */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s var(--transition-ease),
              transform 0.6s var(--transition-ease);
}

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

/* ── Fade In ── */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.fade-in {
  animation: fadeIn 0.5s var(--transition-ease) forwards;
}

/* ── Slide In Right (Cart Drawer) ── */
@keyframes slideInRight {
  from { transform: translateX(100%); }
  to { transform: translateX(0); }
}

@keyframes slideOutRight {
  from { transform: translateX(0); }
  to { transform: translateX(100%); }
}

/* ── Slide In Left (Mobile Menu) ── */
@keyframes slideInLeft {
  from { transform: translateX(-100%); }
  to { transform: translateX(0); }
}

/* ── Scale Up ── */
@keyframes scaleUp {
  from { transform: scale(0.95); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

/* ── Pulse (WhatsApp Button) ── */
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(0, 0, 0, 0.3); }
  70% { box-shadow: 0 0 0 15px rgba(0, 0, 0, 0); }
  100% { box-shadow: 0 0 0 0 rgba(0, 0, 0, 0); }
}

/* ── Spin (Loading) ── */
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.spinner {
  width: 24px;
  height: 24px;
  border: 2px solid var(--color-grey-light);
  border-top: 2px solid var(--color-black);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* ── Underline Grow (Nav Links) ── */
.underline-grow {
  position: relative;
}

.underline-grow::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-black);
  transition: width var(--transition-speed) var(--transition-ease);
}

.underline-grow:hover::after,
.underline-grow.active::after {
  width: 100%;
}

/* ── Image Hover Zoom ── */
.img-zoom-container {
  overflow: hidden;
}

.img-zoom-container img {
  transition: transform 0.5s var(--transition-ease);
}

.img-zoom-container:hover img {
  transform: scale(1.08);
}

/* ── Stagger Children Animation ── */
.stagger-children > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.4s var(--transition-ease),
              transform 0.4s var(--transition-ease);
}

.stagger-children.visible > *:nth-child(1) { transition-delay: 0s; }
.stagger-children.visible > *:nth-child(2) { transition-delay: 0.1s; }
.stagger-children.visible > *:nth-child(3) { transition-delay: 0.2s; }
.stagger-children.visible > *:nth-child(4) { transition-delay: 0.3s; }
.stagger-children.visible > *:nth-child(5) { transition-delay: 0.4s; }
.stagger-children.visible > *:nth-child(6) { transition-delay: 0.5s; }

.stagger-children.visible > * {
  opacity: 1;
  transform: translateY(0);
}

/* ── Overlay Fade ── */
.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-speed), visibility var(--transition-speed);
  z-index: 998;
}

.overlay.active {
  opacity: 1;
  visibility: visible;
}

/* ── Noise / Grain Texture Overlay ── */
.grain-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 1;
}

/* ── Button Hover Slide Effect ── */
.btn-slide {
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn-slide::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background-color: var(--color-white);
  transition: left var(--transition-speed) var(--transition-ease);
  z-index: -1;
}

.btn-slide:hover::before {
  left: 0;
}

/* ── Count Badge Bounce ── */
@keyframes badgeBounce {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.3); }
}

.badge-bounce {
  animation: badgeBounce 0.3s var(--transition-ease);
}

/* ── Skeleton Loading ── */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.skeleton {
  background: linear-gradient(90deg,
    var(--color-grey-light) 25%,
    #f0f0f0 50%,
    var(--color-grey-light) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: 4px;
}