/* ═══════════════════════════════════════════════════════════
   GITANA DESIGN SYSTEM — Animations
   
   Micro-animations for enhanced user experience.
   All animations respect prefers-reduced-motion.
   ═══════════════════════════════════════════════════════════ */

/* ─── Keyframes ─── */

/* Orbital rotation for hero (maintains exact center alignment) */
@keyframes orbit-spin {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Counter-rotation so nodes stay upright */
@keyframes counter-spin {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(-360deg); }
}

/* Pulse ring for TANA widget */
@keyframes pulse-ring {
    0% {
        transform: scale(1);
        opacity: 0.6;
    }
    100% {
        transform: scale(1.4);
        opacity: 0;
    }
}

/* Scroll indicator bounce */
@keyframes scroll-bounce {
    0%, 100% { transform: translateY(0); opacity: 1; }
    50% { transform: translateY(12px); opacity: 0.4; }
}

/* Slide in from right (toasts) */
@keyframes slide-in-right {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Fade up (scroll reveal) */
@keyframes fade-up {
    from {
        transform: translateY(30px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Fade in */
@keyframes fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Scale in */
@keyframes scale-in {
    from {
        transform: scale(0.9);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

/* Shimmer (loading state) */
@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* Glow pulse for interactive elements */
@keyframes glow-pulse {
    0%, 100% { box-shadow: var(--shadow-glow-brand); }
    50% { box-shadow: 0 0 40px rgba(59, 191, 160, 0.2), 0 0 80px rgba(26, 115, 232, 0.1); }
}


/* ─── Scroll Reveal Classes ─── */
/* Elements with data-animate="fade-up" are initially hidden, 
   then revealed by JavaScript IntersectionObserver */

[data-animate] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slower), transform var(--transition-slower);
}

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

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

/* Activated state */
[data-animate].animate-visible {
    opacity: 1;
    transform: translateY(0) scale(1);
}

/* Staggered delays */
[data-animate][data-delay="100"] { transition-delay: 100ms; }
[data-animate][data-delay="200"] { transition-delay: 200ms; }
[data-animate][data-delay="300"] { transition-delay: 300ms; }
[data-animate][data-delay="400"] { transition-delay: 400ms; }
[data-animate][data-delay="500"] { transition-delay: 500ms; }
[data-animate][data-delay="600"] { transition-delay: 600ms; }
[data-animate][data-delay="700"] { transition-delay: 700ms; }


/* ─── Hover Micro-animations ─── */

/* Card lift effect */
.card-hover {
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card-hover:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* Subtle scale on hover */
.hover-scale {
    transition: transform var(--transition-fast);
}

.hover-scale:hover {
    transform: scale(1.02);
}

/* Loading shimmer effect */
.shimmer {
    background: linear-gradient(
        90deg,
        var(--color-surface-1) 25%,
        var(--color-surface-2) 50%,
        var(--color-surface-1) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s ease-in-out infinite;
}