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

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

@keyframes glowPulse {
    0%, 100% {
        box-shadow: 0 0 20px rgba(0, 212, 255, 0.2), 0 0 40px rgba(0, 212, 255, 0.1);
    }
    50% {
        box-shadow: 0 0 30px rgba(0, 212, 255, 0.35), 0 0 60px rgba(0, 212, 255, 0.15);
    }
}

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

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

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

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

/* ==========================================================================
   Animation Classes
   ========================================================================== */

/* Scroll reveal - elements start hidden, become visible when in viewport */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

/* Staggered delays for grid items */
.fade-in-up:nth-child(2) {
    transition-delay: 0.1s;
}

.fade-in-up:nth-child(3) {
    transition-delay: 0.2s;
}

.fade-in-up:nth-child(4) {
    transition-delay: 0.3s;
}

/* Gradient animated text */
.gradient-text {
    background: linear-gradient(135deg, #00d4ff, #00a8cc, #00d4ff, #7dd3fc);
    background-size: 300% 300%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: gradientShift 4s ease infinite;
}

/* Glow pulse for CTA buttons */
.glow-pulse {
    animation: glowPulse 2.5s ease-in-out infinite;
}

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

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

    .fade-in-up {
        opacity: 1;
        transform: none;
    }

    .gradient-text {
        animation: none;
        background-size: 100% 100%;
    }
}