/* ========================================
   PERRINE BORLÉE - Portfolio Website
   Animations Stylesheet
   ======================================== */

/* ========================================
   Keyframe Animations
   ======================================== */

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

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

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

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-8px);
    }
    60% {
        transform: translateY(-4px);
    }
}

@keyframes scroll {
    0% {
        opacity: 1;
        transform: translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateY(10px);
    }
}

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

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes slideInFromLeft {
    from {
        opacity: 0;
        transform: translateX(-100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInFromRight {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes rotateIn {
    from {
        opacity: 0;
        transform: rotate(-180deg) scale(0.5);
    }
    to {
        opacity: 1;
        transform: rotate(0) scale(1);
    }
}

/* ========================================
   Scroll-Triggered Animation Classes
   ======================================== */

/* Base hidden state for all animated elements */
.animate-fade-up,
.animate-fade-down,
.animate-fade-left,
.animate-fade-right,
.animate-scale,
.animate-rotate {
    opacity: 0;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-fade-up {
    transform: translateY(40px);
}

.animate-fade-down {
    transform: translateY(-40px);
}

.animate-fade-left {
    transform: translateX(40px);
}

.animate-fade-right {
    transform: translateX(-40px);
}

.animate-scale {
    transform: scale(0.9);
}

.animate-rotate {
    transform: rotate(-10deg) scale(0.9);
}

/* Visible state when in viewport */
.animate-fade-up.visible,
.animate-fade-down.visible,
.animate-fade-left.visible,
.animate-fade-right.visible {
    opacity: 1;
    transform: translate(0);
}

.animate-scale.visible {
    opacity: 1;
    transform: scale(1);
}

.animate-rotate.visible {
    opacity: 1;
    transform: rotate(0) scale(1);
}

/* ========================================
   Stagger Animation Delays
   ======================================== */

.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }
.stagger-5 { transition-delay: 0.5s; }
.stagger-6 { transition-delay: 0.6s; }

/* ========================================
   Portfolio Item Animations
   ======================================== */

.portfolio-item {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.5s ease, transform 0.5s ease, box-shadow 0.3s ease;
}

.portfolio-item.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger portfolio items */
.portfolio-item:nth-child(1) { transition-delay: 0.1s; }
.portfolio-item:nth-child(2) { transition-delay: 0.2s; }
.portfolio-item:nth-child(3) { transition-delay: 0.3s; }
.portfolio-item:nth-child(4) { transition-delay: 0.4s; }
.portfolio-item:nth-child(5) { transition-delay: 0.5s; }
.portfolio-item:nth-child(6) { transition-delay: 0.6s; }
.portfolio-item:nth-child(7) { transition-delay: 0.7s; }
.portfolio-item:nth-child(8) { transition-delay: 0.8s; }
.portfolio-item:nth-child(9) { transition-delay: 0.9s; }

/* ========================================
   Hover Animations
   ======================================== */

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

.hover-zoom img {
    transition: transform 0.5s ease;
}

.hover-zoom:hover img {
    transform: scale(1.1);
}

/* Lift effect on hover */
.hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.15);
}

/* Glow effect on hover */
.hover-glow {
    transition: box-shadow 0.3s ease;
}

.hover-glow:hover {
    box-shadow: 0 0 30px rgba(0, 128, 128, 0.4);
}

/* ========================================
   Text Animations
   ======================================== */

/* Typewriter effect */
.typewriter {
    overflow: hidden;
    border-right: 2px solid var(--color-accent);
    white-space: nowrap;
    animation: typing 3s steps(30) 1s forwards, blink 0.75s step-end infinite;
}

@keyframes typing {
    from {
        width: 0;
    }
    to {
        width: 100%;
    }
}

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

/* Gradient text animation */
.gradient-text {
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent), var(--color-primary));
    background-size: 200% auto;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: shimmer 3s linear infinite;
}

/* ========================================
   Loading States
   ======================================== */

/* Skeleton loading */
.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

/* Pulse loading */
.pulse-loading {
    animation: pulse 1.5s ease-in-out infinite;
}

/* ========================================
   Button Animations
   ======================================== */

/* Ripple effect */
.btn-ripple {
    position: relative;
    overflow: hidden;
}

.btn-ripple::after {
    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: width 0.6s ease, height 0.6s ease;
}

.btn-ripple:active::after {
    width: 300px;
    height: 300px;
}

/* ========================================
   Page Transitions
   ======================================== */

/* Smooth section transitions */
.section {
    opacity: 1;
    transition: opacity 0.3s ease;
}

/* ========================================
   Reduced Motion
   ======================================== */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .animate-fade-up,
    .animate-fade-down,
    .animate-fade-left,
    .animate-fade-right,
    .animate-scale,
    .animate-rotate,
    .portfolio-item {
        opacity: 1;
        transform: none;
    }
}