/* Frontend Styles for On Click to Top */
.octt-scroll-top-button {
    --button-size: var(--octt-size, 50px);
    --bg-color: var(--octt-bg-color, #ed5839);
    --hover-color: var(--octt-hover-color, #333333);
    --icon-color: var(--octt-icon-color, #ffffff);
    --border-radius: var(--octt-border-radius, 50%);
    --border-style: var(--octt-border-style, solid);
    --border-width: var(--octt-border-width, 2px);
    --border-color: var(--octt-border-color, #ed5839);
    --progress-color: var(--octt-progress-color, #ffffff);
    --progress-width: var(--octt-progress-width, 3px);
    --icon-size: var(--octt-icon-size, 20px);
    --position-bottom: var(--octt-position-bottom, 30px);
    
    position: fixed;
    z-index: 999999;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    width: var(--button-size);
    height: var(--button-size);
    bottom: var(--position-bottom);
    
    /* Position based on setting */
    right: var(--octt-position-right, 30px);
    left: var(--octt-position-left, auto);
}

/* Button visible state */
.octt-scroll-top-button.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* Button hover state */
.octt-scroll-top-button:hover {
    transform: translateY(-5px) scale(1.05);
    /* box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2); */
}

.octt-scroll-top-button:hover .octt-button-inner {
    background: var(--hover-color);
    transform: scale(0.95);
}

/* Button inner container */
.octt-button-inner {
    position: relative;
    width: 100%;
    height: 100%;
    background: var(--bg-color);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    overflow: hidden;
    border-style: var(--border-style);
    border-width: var(--border-width);
    border-color: var(--border-color);
}

/* Progress circle */
.octt-progress-circle {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.octt-progress-background {
    fill: none;
    stroke: rgba(255, 255, 255, 0.2);
    stroke-width: var(--progress-width);
}

.octt-progress-fill {
    fill: none;
    stroke: var(--progress-color);
    stroke-width: var(--progress-width);
    stroke-linecap: round;
    stroke-dasharray: 283;
    stroke-dashoffset: 283;
    transition: stroke-dashoffset 0.1s linear;
}

/* Icon styles */
.octt-button-icon {
    color: var(--icon-color);
    font-size: var(--icon-size);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    position: relative;
    z-index: 2;
    transition: all 0.3s ease;
}

.octt-button-icon img {
    max-width: 60%;
    max-height: 60%;
    object-fit: contain;
    filter: brightness(0) invert(1);
    transition: filter 0.3s ease;
}

.octt-scroll-top-button:hover .octt-button-icon img {
    filter: brightness(0) invert(1);
}

.octt-button-icon .dashicons {
    width: auto;
    height: auto;
    font-size: inherit;
}

/* Ripple effect */
.octt-button-inner::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    opacity: 0;
    z-index: 1;
}

.octt-scroll-top-button:active .octt-button-inner::before {
    animation: ripple 0.6s ease-out;
}

@keyframes ripple {
    0% {
        width: 0;
        height: 0;
        opacity: 0.5;
    }
    100% {
        width: 200%;
        height: 200%;
        opacity: 0;
    }
}

/* Pulse animation */
@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(var(--bg-color-rgb), 0.7);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(var(--bg-color-rgb), 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(var(--bg-color-rgb), 0);
    }
}

.octt-scroll-top-button.pulse {
    animation: pulse 2s infinite;
}

/* Responsive styles */
@media (max-width: 768px) {
    .octt-scroll-top-button {
        --button-size: 45px;
        --position-bottom: 20px;
        right: 20px !important;
        left: auto !important;
    }
    
    .octt-scroll-top-button:hover {
        transform: translateY(-3px) scale(1.03);
    }
}

@media (max-width: 480px) {
    .octt-scroll-top-button {
        --button-size: 40px;
        --position-bottom: 15px;
        right: 15px !important;
    }
}

/* Accessibility */
.octt-scroll-top-button:focus {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

.octt-scroll-top-button:focus:not(:focus-visible) {
    outline: none;
}

.octt-scroll-top-button:focus-visible {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

/* Admin area styles */
.admin-bar .octt-scroll-top-button {
    bottom: calc(var(--position-bottom) + 32px);
}

@media (max-width: 782px) {
    .admin-bar .octt-scroll-top-button {
        bottom: calc(var(--position-bottom) + 46px);
    }
}

/* Print styles */
@media print {
    .octt-scroll-top-button {
        display: none !important;
    }
}