/* ============================================
   ANIMATIONS & TRANSITIONS
   ============================================ */

/* Base animation settings */
:root {
  --animation-duration: 0.3s;
  --animation-timing: cubic-bezier(0.4, 0, 0.2, 1);
  --hover-duration: 0.2s;
  --hover-timing: ease-out;
}

/* Reduced motion preferences */
@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;
  }
}

/* ============================================
   PAGE TRANSITIONS
   ============================================ */

/* Main content fade in */
.fade-in {
  animation: fadeInUp var(--animation-duration) var(--animation-timing);
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Stagger animation for multiple elements */
.stagger-in > * {
  animation: fadeInUp var(--animation-duration) var(--animation-timing);
  animation-fill-mode: both;
}

.stagger-in > *:nth-child(1) { animation-delay: 0ms; }
.stagger-in > *:nth-child(2) { animation-delay: 50ms; }
.stagger-in > *:nth-child(3) { animation-delay: 100ms; }
.stagger-in > *:nth-child(4) { animation-delay: 150ms; }
.stagger-in > *:nth-child(5) { animation-delay: 200ms; }
.stagger-in > *:nth-child(6) { animation-delay: 250ms; }
.stagger-in > *:nth-child(7) { animation-delay: 300ms; }
.stagger-in > *:nth-child(8) { animation-delay: 350ms; }

/* ============================================
   TABLE ANIMATIONS
   ============================================ */

/* Table row animations */
table[role="grid"] tbody tr {
  transition: all var(--hover-duration) var(--hover-timing);
  animation: slideInLeft 0.4s var(--animation-timing);
  animation-fill-mode: both;
}

table[role="grid"] tbody tr:nth-child(1) { animation-delay: 0ms; }
table[role="grid"] tbody tr:nth-child(2) { animation-delay: 40ms; }
table[role="grid"] tbody tr:nth-child(3) { animation-delay: 80ms; }
table[role="grid"] tbody tr:nth-child(4) { animation-delay: 120ms; }
table[role="grid"] tbody tr:nth-child(5) { animation-delay: 160ms; }
table[role="grid"] tbody tr:nth-child(6) { animation-delay: 200ms; }
table[role="grid"] tbody tr:nth-child(7) { animation-delay: 240ms; }
table[role="grid"] tbody tr:nth-child(8) { animation-delay: 280ms; }
table[role="grid"] tbody tr:nth-child(9) { animation-delay: 320ms; }
table[role="grid"] tbody tr:nth-child(10) { animation-delay: 360ms; }

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Table hover effects */
table[role="grid"] tbody tr:hover td {
  background-color: color-mix(
    in oklab,
    var(--pico-primary) 8%,
    transparent
  ) !important;
  transform: translateX(4px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* Table cell content animations */
/* ============================================
   CARD ANIMATIONS
   ============================================ */

/* Card entrance animation */
section.card {
  animation: cardSlideIn 0.5s var(--animation-timing);
  transition: all var(--hover-duration) var(--hover-timing);
}

@keyframes cardSlideIn {
  from {
    opacity: 0;
    transform: translateY(30px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* Card hover effects */
section.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
}

/* ============================================
   BUTTON ANIMATIONS
   ============================================ */

/* Chip button animations */
.chip-button {
  transition: all var(--hover-duration) var(--hover-timing);
  position: relative;
  overflow: hidden;
}

.chip-button::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: all 0.3s ease;
}

.chip-button:hover::before {
  width: 300px;
  height: 300px;
}

.chip-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.chip-button:active {
  transform: translateY(0) scale(0.98);
}

/* Link button animations */
a[href]:not(.button):not(.no-btn):not(:has(img)) {
  transition: all var(--hover-duration) var(--hover-timing);
  position: relative;
  overflow: hidden;
}

a[href]:not(.button):not(.no-btn):not(:has(img)):hover {
  transform: translateY(-1px);
}

a[href]:not(.button):not(.no-btn):not(:has(img)):active {
  transform: translateY(0) scale(0.98);
}

/* ============================================
   NAVIGATION ANIMATIONS
   ============================================ */

/* Navigation link hover effects */
nav ul li a {
  transition: all var(--hover-duration) var(--hover-timing);
  position: relative;
}

nav ul li a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--pico-primary);
  transition: all var(--hover-duration) var(--hover-timing);
  transform: translateX(-50%);
}

nav ul li a:hover::after {
  width: 80%;
}

nav ul li a:hover {
  transform: translateY(-1px);
  color: var(--pico-primary);
}

/* ============================================
   SOCIAL ICONS ANIMATIONS
   ============================================ */

.social-links a {
  transition: all var(--hover-duration) var(--hover-timing);
}

.social-links a:hover {
  transform: translateY(-2px) scale(1.1);
  filter: brightness(1.2);
}

.social-links img {
  transition: all var(--hover-duration) var(--hover-timing);
}

/* ============================================
   MODAL ANIMATIONS
   ============================================ */

/* Modal backdrop animation */
.modal[aria-hidden="false"] .modal-backdrop {
  animation: fadeIn 0.2s ease-out;
}

.modal[aria-hidden="true"] .modal-backdrop {
  animation: fadeOut 0.2s ease-out;
}

/* Modal card animation */
.modal[aria-hidden="false"] .modal-card {
  animation: modalSlideIn 0.3s var(--animation-timing);
}

.modal[aria-hidden="true"] .modal-card {
  animation: modalSlideOut 0.2s var(--animation-timing);
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeOut {
  from { opacity: 1; }
  to { opacity: 0; }
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: scale(0.9) translateY(-20px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

@keyframes modalSlideOut {
  from {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
  to {
    opacity: 0;
    transform: scale(0.9) translateY(-20px);
  }
}

/* ============================================
   FORM ANIMATIONS
   ============================================ */

/* Input focus animations */
input:focus,
select:focus,
textarea:focus {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  transition: all var(--hover-duration) var(--hover-timing);
}

/* ============================================
   LOADING ANIMATIONS
   ============================================ */

/* Spinner animation */
.loading-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--pico-muted-border-color);
  border-radius: 50%;
  border-top-color: var(--pico-primary);
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Pulse animation for loading states */
.loading-pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

/* ============================================
   MICRO-INTERACTIONS
   ============================================ */

/* Subtle bounce for interactive elements */
.bounce-on-click {
  transition: transform 0.1s ease;
}

.bounce-on-click:hover {
  background: color-mix(in oklab, var(--pico-muted-border-color, #e5e7eb) 25%, transparent);
  border-color: color-mix(in oklab, var(--pico-muted-border-color, #e5e7eb) 90%, transparent);
}

.bounce-on-click:active {
  transform: scale(0.95);
}

/* Shake animation for errors */
.shake {
  animation: shake 0.5s ease-in-out;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
  20%, 40%, 60%, 80% { transform: translateX(5px); }
}

/* Success check animation */
.success-check {
  animation: successPop 0.4s var(--animation-timing);
}

@keyframes successPop {
  0% { transform: scale(0); }
  50% { transform: scale(1.1); }
  100% { transform: scale(1); }
}

/* ============================================
   SCROLL ANIMATIONS
   ============================================ */

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

/* Scroll to top button animation */
.scroll-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--animation-duration) var(--animation-timing);
  pointer-events: none;
  z-index: 100;
}

.scroll-to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
}

.scroll-to-top:hover {
  transform: translateY(-2px);
}

/* ============================================
   ACCESSIBILITY ANIMATIONS
   ============================================ */

/* Focus visible animations */
*:focus-visible {
  outline: 2px solid var(--pico-primary);
  outline-offset: 2px;
  transition: outline-offset var(--hover-duration) ease;
}

*:focus-visible:hover {
  outline-offset: 4px;
}