/**
 * Scroll Sequence Animation - Frontend Styles
 */

/* Container */
.ssa-container {
    position: relative;
    width: 100%;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    /* Performance: contain layout and paint to this element */
    contain: layout style paint;
    /* Force GPU layer for smoother animations */
    transform: translateZ(0);
    backface-visibility: hidden;
}

/* Canvas */
.ssa-canvas {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    display: block;
    /* GPU acceleration hints */
    will-change: transform, opacity;
    transform-origin: center center;
    transform: translateZ(0);
    /* Prevent subpixel rendering issues */
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
}

/* Loading Indicator */
.ssa-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    z-index: 10;
    text-align: center;
}

.ssa-loading-text {
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #86868b;
}

.ssa-loading-progress {
    font-size: 2rem;
    font-weight: 600;
    color: #1d1d1f;
    letter-spacing: -0.02em;
}

.ssa-loading.ssa-hidden {
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.5s ease;
}

/* Pinned state - GSAP adds pin-spacer automatically */
.ssa-container.ssa-pinned {
    position: relative;
}

/* GSAP pin-spacer styling */
.pin-spacer {
    width: 100% !important;
    display: flex !important;
    justify-content: center !important;
}

.ssa-pin-spacer {
    width: 100% !important;
}

/* Wrapper */
.ssa-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* Scroll Indicator */
.ssa-scroll-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 2rem 0;
    width: 100%;
    text-align: center;
}

.ssa-scroll-arrow {
    width: 32px;
    height: 32px;
    animation: ssa-float 2s ease-in-out infinite;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

@keyframes ssa-float {
    0%, 100% {
        transform: translateY(0);
        opacity: 1;
    }
    50% {
        transform: translateY(10px);
        opacity: 0.7;
    }
}

.ssa-scroll-text {
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.15em;
}

/* Responsive */
@media (max-width: 767px) {
    .ssa-container {
        height: 340px !important;
    }

    .ssa-loading-progress {
        font-size: 1.5rem;
    }

    .ssa-scroll-indicator {
        padding: 1rem 0;
    }

    .ssa-scroll-arrow {
        width: 20px;
        height: 20px;
    }

    .ssa-scroll-text {
        font-size: 0.65rem;
    }
}