.screen-shake {
    animation: shake 0.15s ease-out;
}

@keyframes shake {
    0% { transform: translate(0, 0); }
    25% { transform: translate(-3px, 2px); }
    50% { transform: translate(2px, -2px); }
    75% { transform: translate(-1px, 1px); }
    100% { transform: translate(0, 0); }
}

.damage-flash {
    animation: dmgFlash 0.2s ease-out;
}

@keyframes dmgFlash {
    0% { filter: brightness(2) saturate(0.5); }
    100% { filter: brightness(1) saturate(1); }
}

.level-up-flash {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: radial-gradient(circle at center, rgba(0, 212, 255, 0.15), transparent 60%);
    pointer-events: none;
    z-index: 15;
    animation: lvlFlash 1s ease-out forwards;
}

@keyframes lvlFlash {
    0% { opacity: 1; }
    100% { opacity: 0; }
}

.floating-text {
    position: fixed;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 1px;
    pointer-events: none;
    z-index: 15;
    animation: floatUp 1s ease-out forwards;
    text-shadow: 0 1px 3px rgba(0,0,0,0.5);
}

@keyframes floatUp {
    0% { opacity: 1; transform: translateY(0); }
    100% { opacity: 0; transform: translateY(-40px); }
}

.danger-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    border: 3px solid rgba(255, 50, 80, 0.4);
    pointer-events: none;
    z-index: 15;
    animation: dangerPulse 0.5s ease-out;
}

@keyframes dangerPulse {
    0% { opacity: 1; }
    100% { opacity: 0; }
}