/* Fade in on scroll */
.fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered children */
.fade-in-group > * {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.fade-in-group.visible > *:nth-child(1) { transition-delay: 0ms; }
.fade-in-group.visible > *:nth-child(2) { transition-delay: 80ms; }
.fade-in-group.visible > *:nth-child(3) { transition-delay: 160ms; }
.fade-in-group.visible > *:nth-child(4) { transition-delay: 240ms; }
.fade-in-group.visible > *:nth-child(5) { transition-delay: 320ms; }
.fade-in-group.visible > *:nth-child(6) { transition-delay: 400ms; }

.fade-in-group.visible > * {
    opacity: 1;
    transform: translateY(0);
}

/* Hover effects */
.card {
    will-change: transform;
}

/* Nav link underline animation */
.nav-link::after {
    will-change: width;
}

/* Avatar pulse glow */
.avatar-wrapper {
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
    animation: avatar-glow 3s ease-in-out infinite;
}

.avatar-wrapper:hover {
    border-color: var(--accent-light);
    box-shadow: 0 0 0 4px rgba(94, 234, 212, 0.1);
}

@keyframes avatar-glow {
    0%, 100% { box-shadow: 0 0 8px rgba(94, 234, 212, 0.15), 0 0 24px rgba(94, 234, 212, 0.05); }
    50% { box-shadow: 0 0 16px rgba(94, 234, 212, 0.3), 0 0 40px rgba(94, 234, 212, 0.1); }
}

/* Social icon bounce */
@keyframes subtle-bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-2px); }
}

/* Typing cursor blink */
@keyframes blink-cursor {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

/* Timeline dot pulse */
@keyframes dot-pulse {
    0% { box-shadow: 0 0 0 0 rgba(94, 234, 212, 0.5); }
    70% { box-shadow: 0 0 0 8px rgba(94, 234, 212, 0); }
    100% { box-shadow: 0 0 0 0 rgba(94, 234, 212, 0); }
}

/* Scroll progress bar */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    width: 0%;
    background: linear-gradient(90deg, var(--accent), var(--accent-light));
    z-index: 10000;
    transition: width 50ms linear;
    pointer-events: none;
}

/* Card tilt - override default hover for tilt cards */
.tilt-card {
    transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}