/* Floating Bar Container */
.wpfss-floating-bar {
    position: fixed;
    z-index: 99999;
    display: flex;
    flex-direction: column;
    gap: 0; /* No gap for seamless look */
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    opacity: 0;
    visibility: hidden;
}

.wpfss-pos-left { left: 0; top: 50%; transform: translateY(-50%); }
.wpfss-pos-right { right: 0; top: 50%; transform: translateY(-50%); }

/* Button Base Styling */
.wpfss-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff !important;
    text-decoration: none !important;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    border: none;
    outline: none;
    box-sizing: border-box;
}

.wpfss-btn svg {
    width: 22px;
    height: 22px;
    fill: #fff;
    transition: transform 0.3s ease;
    z-index: 2;
}

/* Shapes & Hover Effects */
.wpfss-shape-rounded .wpfss-btn { border-radius: 0 6px 6px 0; margin-bottom: 2px; }
.wpfss-pos-right.wpfss-shape-rounded .wpfss-btn { border-radius: 6px 0 0 6px; }

.wpfss-shape-circular .wpfss-btn { border-radius: 50%; margin: 5px; }
.wpfss-shape-pill .wpfss-btn { border-radius: 30px; margin: 5px; }

/* Sizes */
.wpfss-size-small .wpfss-btn { width: 40px; height: 40px; }
.wpfss-size-medium .wpfss-btn { width: 50px; height: 50px; }
.wpfss-size-large .wpfss-btn { width: 60px; height: 60px; }

/* Hover Interactions */
.wpfss-btn:hover {
    width: 110%; /* Slight expansion */
    box-shadow: 0 10px 20px rgba(0,0,0,0.15);
    filter: brightness(1.1);
    z-index: 10;
}

.wpfss-pos-left .wpfss-btn:hover { transform: translateX(5px); }
.wpfss-pos-right .wpfss-btn:hover { transform: translateX(-5px); }

.wpfss-btn:hover svg {
    transform: scale(1.2);
}

/* Ripple Effect */
.wpfss-btn::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255,255,255,0.4);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.4s ease-out, height 0.4s ease-out, opacity 0.4s ease-out;
    opacity: 0;
}

.wpfss-btn:active::after {
    width: 200%;
    height: 200%;
    opacity: 1;
    transition: 0s;
}

/* Inline Buttons (Auto-injected) */
.wpfss-inline-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin: 30px 0;
    padding: 20px 0;
    border-top: 1px solid #eee;
    border-bottom: 1px solid #eee;
    justify-content: flex-start;
}

.wpfss-inline-buttons .wpfss-btn {
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.08);
}

.wpfss-inline-buttons .wpfss-btn:hover {
    transform: translateY(-5px);
    width: auto; /* Reset width expansion for inline */
}

/* Mobile Sticky Bar */
@media (max-width: 768px) {
    .wpfss-floating-bar {
        flex-direction: row;
        bottom: 0;
        left: 0;
        right: 0;
        top: auto;
        transform: none;
        justify-content: space-around;
        background: #fff;
        padding: 5px;
        box-shadow: 0 -5px 20px rgba(0,0,0,0.1);
        opacity: 1 !important;
        visibility: visible !important;
    }
    
    .wpfss-btn {
        flex: 1;
        height: 50px !important;
        width: auto !important;
        border-radius: 8px !important;
        margin: 2px !important;
    }
    
    .wpfss-btn:hover {
        transform: none !important;
        width: auto !important;
    }
}