/**
 * What My Friends Eat - Animations & Effects
 * Parallax, transitions, modals, and scroll animations
 */

/* ===== Page Transitions ===== */
.page-enter {
  opacity: 0;
  transform: translateY(20px);
}

.page-enter-active {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

/* ===== Parallax Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.hero-background img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  will-change: transform;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(0, 0, 0, 0.2) 0%,
    rgba(0, 0, 0, 0.4) 50%,
    rgba(0, 0, 0, 0.6) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: white;
  padding: var(--space-8);
  max-width: 800px;
}

.hero-title {
  font-family: var(--font-display);
  font-size: var(--text-5xl);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: var(--space-6);
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
  font-size: var(--text-xl);
  opacity: 0.9;
  margin-bottom: var(--space-8);
  text-shadow: 0 1px 10px rgba(0, 0, 0, 0.3);
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

/* Parallax scroll effect applied via JS */
[data-parallax] {
  will-change: transform;
}

/* ===== Modal ===== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal-backdrop);
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}

.modal-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.modal {
  position: fixed;
  top: 50%;
  left: 50%;
  z-index: var(--z-modal);
  width: calc(100% - var(--space-8));
  max-width: 480px;
  max-height: calc(100vh - var(--space-16));
  background-color: var(--color-surface);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  transform: translate(-50%, -50%) scale(0.95);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.modal.open {
  transform: translate(-50%, -50%) scale(1);
  opacity: 1;
  visibility: visible;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-6);
  border-bottom: 1px solid var(--color-border-light);
}

.modal-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
}

.modal-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  border-radius: var(--radius-full);
  color: var(--color-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background-color: var(--color-border-light);
  color: var(--color-text);
}

.modal-body {
  padding: var(--space-6);
  overflow-y: auto;
  max-height: calc(100vh - 200px);
}

.modal-footer {
  display: flex;
  gap: var(--space-3);
  justify-content: flex-end;
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--color-border-light);
  background-color: var(--color-bg);
}

/* Modal sizes */
.modal-sm { max-width: 360px; }
.modal-lg { max-width: 640px; }
.modal-xl { max-width: 800px; }

/* ===== Scroll Animations ===== */
[data-animate] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate].animated {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delays for children */
[data-animate-stagger] > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

[data-animate-stagger].animated > *:nth-child(1) { transition-delay: 0ms; }
[data-animate-stagger].animated > *:nth-child(2) { transition-delay: 100ms; }
[data-animate-stagger].animated > *:nth-child(3) { transition-delay: 200ms; }
[data-animate-stagger].animated > *:nth-child(4) { transition-delay: 300ms; }
[data-animate-stagger].animated > *:nth-child(5) { transition-delay: 400ms; }
[data-animate-stagger].animated > *:nth-child(6) { transition-delay: 500ms; }

[data-animate-stagger].animated > * {
  opacity: 1;
  transform: translateY(0);
}

/* Specific animation types */
[data-animate="fade-up"] {
  transform: translateY(40px);
}

[data-animate="fade-down"] {
  transform: translateY(-40px);
}

[data-animate="fade-left"] {
  transform: translateX(40px);
}

[data-animate="fade-right"] {
  transform: translateX(-40px);
}

[data-animate="zoom-in"] {
  transform: scale(0.9);
}

[data-animate="zoom-out"] {
  transform: scale(1.1);
}

/* ===== Hover Effects ===== */
.hover-lift {
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.hover-lift:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.hover-glow {
  transition: box-shadow var(--transition-base);
}

.hover-glow:hover {
  box-shadow: 0 0 30px var(--color-primary-light);
}

.hover-scale {
  transition: transform var(--transition-fast);
}

.hover-scale:hover {
  transform: scale(1.05);
}

/* ===== Image Reveal ===== */
.image-reveal {
  position: relative;
  overflow: hidden;
}

.image-reveal::before {
  content: '';
  position: absolute;
  inset: 0;
  background-color: var(--color-primary);
  transform: translateX(-100%);
  z-index: 1;
}

.image-reveal.animated::before {
  animation: image-reveal 0.8s ease forwards;
}

.image-reveal img {
  opacity: 0;
}

.image-reveal.animated img {
  animation: image-fade-in 0.4s ease 0.4s forwards;
}

@keyframes image-reveal {
  0% { transform: translateX(-100%); }
  50% { transform: translateX(0); }
  100% { transform: translateX(100%); }
}

@keyframes image-fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ===== Toast Notifications ===== */
.toast-container {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: var(--z-tooltip);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  transform: translateX(120%);
  transition: transform var(--transition-base);
}

.toast.show {
  transform: translateX(0);
}

.toast-success { border-left: 4px solid var(--color-success); }
.toast-error { border-left: 4px solid var(--color-danger); }
.toast-warning { border-left: 4px solid var(--color-warning); }
.toast-info { border-left: 4px solid var(--color-info); }

/* ===== Page Scroll Progress ===== */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background-color: var(--color-primary);
  transform-origin: left;
  transform: scaleX(0);
  z-index: calc(var(--z-sticky) + 1);
}

/* ===== Smooth Scroll Anchor Offset ===== */
html {
  scroll-padding-top: 80px; /* Navbar height */
}

/* ===== Reduced Motion ===== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  [data-parallax] {
    transform: none !important;
  }

  [data-animate] {
    opacity: 1 !important;
    transform: none !important;
  }
}