/* ==========================================================================
   Modern Animations & Effects
   Smooth transitions, micro-interactions, and visual polish
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Page Transition - Fade In from Bottom
   -------------------------------------------------------------------------- */
.page-wrapper {
    animation: pageEnter 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* Navbar is excluded from page transition - always visible during page load */
/* But allow transform for scroll hide/show effect */
.page-wrapper ~ .navbar,
.navbar:first-child {
    animation: none !important;
    opacity: 1 !important;
}

/* Smooth page exit for navigation */
.page-exit {
    animation: pageExit 0.3s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes pageExit {
    to {
        opacity: 0;
        transform: translateY(-20px);
    }
}

/* --------------------------------------------------------------------------
   2. Scroll Reveal Animations - Trigger once only
   -------------------------------------------------------------------------- */

/* Elements start invisible and below final position */
.reveal-once {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: opacity, transform;
}

/* When revealed, animate to visible position */
.reveal-once.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered delays for lists */
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }
.reveal-delay-6 { transition-delay: 0.6s; }

/* Slide from left - once only */
.reveal-left-once {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: opacity, transform;
}

.reveal-left-once.revealed {
    opacity: 1;
    transform: translateX(0);
}

/* Slide from right - once only */
.reveal-right-once {
    opacity: 0;
    transform: translateX(50px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: opacity, transform;
}

.reveal-right-once.revealed {
    opacity: 1;
    transform: translateX(0);
}

/* Scale reveal - once only */
.reveal-scale-once {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: opacity, transform;
}

.reveal-scale-once.revealed {
    opacity: 1;
    transform: scale(1);
}

/* Staggered delays for lists */
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* Slide from left */
.reveal-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-left.active {
    opacity: 1;
    transform: translateX(0);
}

/* Slide from right */
.reveal-right {
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-right.active {
    opacity: 1;
    transform: translateX(0);
}

/* Scale reveal */
.reveal-scale {
    opacity: 0;
    transform: scale(0.9);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-scale.active {
    opacity: 1;
    transform: scale(1);
}

/* --------------------------------------------------------------------------
   3. Micro-interactions & Hover Effects
   -------------------------------------------------------------------------- */

/* Magnetic button effect */
.magnetic-btn {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.magnetic-btn:hover {
    transform: translateY(-3px) scale(1.02);
}

/* Card lift effect */
.hover-lift {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.hover-lift:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

/* Shine effect on hover */
.shine-effect {
    position: relative;
    overflow: hidden;
}

.shine-effect::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        transparent
    );
    transition: left 0.5s ease;
}

.shine-effect:hover::before {
    left: 100%;
}

/* Image zoom on hover */
.img-zoom {
    overflow: hidden;
}

.img-zoom img {
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* Border glow effect */
.glow-border {
    position: relative;
    transition: all 0.3s ease;
}

.glow-border::after {
    content: '';
    position: absolute;
    inset: -2px;
    background: linear-gradient(45deg, var(--color-primary), var(--color-accent));
    border-radius: inherit;
    opacity: 0;
    z-index: -1;
    filter: blur(8px);
    transition: opacity 0.3s ease;
}

.glow-border:hover::after {
    opacity: 0.4;
}

/* --------------------------------------------------------------------------
   4. Text Animations
   -------------------------------------------------------------------------- */

/* Typewriter effect */
@keyframes typewriter {
    from { width: 0; }
    to { width: 100%; }
}

.typewriter {
    overflow: hidden;
    white-space: nowrap;
    border-right: 2px solid var(--color-primary);
    animation: typewriter 2s steps(40) forwards, blink 0.75s step-end infinite;
}

@keyframes blink {
    50% { border-color: transparent; }
}

/* Gradient text */
.gradient-text {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Text reveal on scroll */
.text-reveal {
    overflow: hidden;
}

.text-reveal span {
    display: inline-block;
    transform: translateY(100%);
    opacity: 0;
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.text-reveal.active span {
    transform: translateY(0);
    opacity: 1;
}

/* --------------------------------------------------------------------------
   5. Loading & Skeleton Animations
   -------------------------------------------------------------------------- */

/* Skeleton loading */
@keyframes skeleton-loading {
    0% { background-position: -200px 0; }
    100% { background-position: calc(200px + 100%) 0; }
}

.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200px 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
}

/* Pulse animation */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* --------------------------------------------------------------------------
   6. Parallax & Background Effects
   -------------------------------------------------------------------------- */

/* Parallax background */
.parallax-bg {
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

/* Floating animation */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.float {
    animation: float 6s ease-in-out infinite;
}

/* --------------------------------------------------------------------------
   7. Advanced Transitions
   -------------------------------------------------------------------------- */

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

/* Custom easing */
.ease-smooth {
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

.ease-bounce {
    transition-timing-function: cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* --------------------------------------------------------------------------
   8. Focus & Accessibility Animations
   -------------------------------------------------------------------------- */

/* Focus ring animation */
:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 4px;
    transition: outline-offset 0.2s ease;
}

/* Skip link animation */
.skip-link {
    position: absolute;
    top: -100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-primary);
    color: white;
    padding: 1rem 2rem;
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    z-index: 10000;
    transition: top 0.3s ease;
}

.skip-link:focus {
    top: 0;
}

/* --------------------------------------------------------------------------
   9. Mobile Optimizations
   -------------------------------------------------------------------------- */

@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-wrapper {
        animation: none;
    }
    
    .reveal-once,
    .reveal-left-once,
    .reveal-right-once,
    .reveal-scale-once {
        opacity: 1 !important;
        transform: none !important;
    }
}}
    .reveal-right,
    .reveal-scale {
        opacity: 1;
        transform: none;
    }
}

/* Touch device optimizations */
@media (hover: none) {
    .hover-lift:hover {
        transform: none;
    }
    
    .magnetic-btn:hover {
        transform: none;
    }
}