/* ===================================
   ANIMATIONS — DEEPCURRENT
   =================================== */

/* Float animation */
@keyframes float-y {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

/* Fade in up */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1) var(--delay, 0s),
                transform 0.7s cubic-bezier(0.4, 0, 0.2, 1) var(--delay, 0s);
}

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

/* Fade in left */
.fade-in-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1) var(--delay, 0s),
                transform 0.7s cubic-bezier(0.4, 0, 0.2, 1) var(--delay, 0s);
}

.fade-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

/* Fade in right */
.fade-in-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1) var(--delay, 0s),
                transform 0.7s cubic-bezier(0.4, 0, 0.2, 1) var(--delay, 0s);
}

.fade-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* Bubble particle */
@keyframes bubble-rise {
    0% {
        transform: translateY(0) translateX(0) scale(1);
        opacity: 0.6;
    }
    50% {
        transform: translateY(-50vh) translateX(20px) scale(1.1);
        opacity: 0.3;
    }
    100% {
        transform: translateY(-100vh) translateX(-10px) scale(0.8);
        opacity: 0;
    }
}

.bubble {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(63, 193, 170, 0.3), rgba(63, 193, 170, 0.05));
    pointer-events: none;
    animation: bubble-rise linear infinite;
}

/* Light ray */
@keyframes light-ray {
    0% { opacity: 0.05; transform: rotate(-15deg) translateY(0); }
    50% { opacity: 0.1; transform: rotate(-15deg) translateY(-20px); }
    100% { opacity: 0.05; transform: rotate(-15deg) translateY(0); }
}

.light-ray {
    position: absolute;
    width: 2px;
    background: linear-gradient(to bottom, rgba(255, 209, 102, 0.2), transparent);
    pointer-events: none;
    animation: light-ray 6s ease-in-out infinite;
}

/* Pulse ring */
@keyframes pulse-ring {
    0% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(255, 127, 80, 0.3);
    }
    70% {
        transform: scale(1);
        box-shadow: 0 0 0 12px rgba(255, 127, 80, 0);
    }
    100% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(255, 127, 80, 0);
    }
}

/* Smooth wave motion */
@keyframes wave-motion {
    0% { transform: translateX(0) translateZ(0) scaleY(1); }
    50% { transform: translateX(-25%) translateZ(0) scaleY(0.55); }
    100% { transform: translateX(-50%) translateZ(0) scaleY(1); }
}