/* Keyframe Animations */
@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 fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

@keyframes slideInUp {
    from {
        transform: translateY(100%);
    }
    to {
        transform: translateY(0);
    }
}

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

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Scroll-triggered animations */
[data-animate] {
    opacity: 0;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate="fade-up"] {
    transform: translateY(40px);
}

[data-animate="fade-down"] {
    transform: translateY(-40px);
}

[data-animate="fade-left"] {
    transform: translateX(-40px);
}

[data-animate="fade-right"] {
    transform: translateX(40px);
}

[data-animate="scale"] {
    transform: scale(0.9);
}

[data-animate="fade"] {
    transform: none;
}

/* Visible state */
[data-animate].visible {
    opacity: 1;
    transform: none;
}

/* Staggered children */
[data-stagger] > * {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

[data-stagger].visible > *:nth-child(1) { transition-delay: 0s; }
[data-stagger].visible > *:nth-child(2) { transition-delay: 0.1s; }
[data-stagger].visible > *:nth-child(3) { transition-delay: 0.2s; }
[data-stagger].visible > *:nth-child(4) { transition-delay: 0.3s; }
[data-stagger].visible > *:nth-child(5) { transition-delay: 0.4s; }
[data-stagger].visible > *:nth-child(6) { transition-delay: 0.5s; }

[data-stagger].visible > * {
    opacity: 1;
    transform: translateY(0);
}

/* Page transitions */
.page-transition {
    animation: fadeIn 0.4s ease;
}

/* Loading spinner */
.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-dark-gray);
    border-top-color: var(--color-bronze);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* Toast notification */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-white);
    z-index: 9999;
    transform: translateY(120%);
    transition: transform var(--transition-spring);
    max-width: 400px;
}

.toast.show {
    transform: translateY(0);
}

.toast--success {
    background: var(--color-success);
}

.toast--error {
    background: var(--color-error);
}

.toast--warning {
    background: var(--color-warning);
    color: var(--color-black);
}