/* Animation keyframes */
@keyframes fadeIn {
    from { opacity: /* Enhanced Project cards animation */
.project-hidden {
    opacity: 0;
    transform: translateY(30px) scale(0.95);
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), 
                transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    filter: blur(5px);
}

.project-reveal {
    opacity: 1;
    transform: translateY(0) scale(1);
    filter: blur(0);
}o { opacity: 1; }
}

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

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

@keyframes scale {
    0% { transform: scale(0.8); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
}

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

/* Animation classes */
.fade-in {
    animation: fadeIn 0.8s ease forwards;
}

.scale-in {
    animation: scale 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

/* Scroll-reveal animations */
.section-hidden {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.6s ease, transform 0.8s ease;
}

.reveal {
    opacity: 1;
    transform: translateY(0);
}

/* Enhanced skill items staggered animation */
.skill-hidden {
    opacity: 0;
    transform: translateY(30px) scale(0.95);
    transition: opacity 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275), 
                transform 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    filter: blur(5px);
}

.skill-reveal {
    opacity: 1;
    transform: translateY(0) scale(1);
    filter: blur(0);
}

/* Category headers animation */
.category-header {
    transition: opacity 0.5s ease, transform 0.5s ease;
}

/* Enhanced Project cards animation */
.project-hidden {
    opacity: 0;
    transform: translateY(30px) scale(0.95);
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    filter: blur(5px);
}

.project-reveal {
    opacity: 1;
    transform: translateY(0) scale(1);
    filter: blur(0);
}

/* Hover animations */
.btn:hover {
    animation: pulse 0.4s ease-in-out;
}

.profile-picture-wrapper:hover {
    animation: pulse 1s infinite;
}

/* Typing cursor effect */
.typing-cursor {
    display: inline-block;
    width: 2px;
    background-color: var(--text-primary);
    animation: blink 1s step-end infinite;
    margin-left: 2px;
    height: 1.2em;
    vertical-align: text-bottom;
}

@keyframes blink {
    from, to { opacity: 1; }
    50% { opacity: 0; }
}