body {
    background: linear-gradient(to bottom, #1e3a5f, #2c5282, #3b7ea1);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
.ai-logo-glow {
    filter: drop-shadow(0 0 10px rgba(26, 115, 232, 0.6));
}
.ai-gradient-bg {
    background: linear-gradient(135deg, rgba(26, 115, 232, 0.9), rgba(52, 168, 83, 0.8));
}
#app-transition {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(30, 58, 95, 0.95);
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}
.app-progress-container {
    width: 80%;
    max-width: 400px;
    margin: 20px auto;
    position: relative;
}
.app-progress-bar {
    height: 6px;
    background: linear-gradient(to right, #1a73e8, #34a853);
    width: 0%;
    border-radius: 3px;
    transition: width 2s ease-in-out;
    box-shadow: 0 0 10px rgba(26, 115, 232, 0.5);
}
.app-feature {
    display: flex;
    align-items: center;
    margin: 12px 0;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}
.app-feature.visible {
    opacity: 1;
    transform: translateY(0);
}
.app-pulse {
    animation: app-pulse-effect 2s infinite;
}
@keyframes app-pulse-effect {
    0% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
    }
    70% {
        transform: scale(1.05);
        box-shadow: 0 0 0 10px rgba(37, 211, 102, 0);
    }
    100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
    }
}
.app-float {
    animation: app-float-effect 3s ease-in-out infinite;
}
@keyframes app-float-effect {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
}
.app-card-shadow {
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}