/**
 * Base CSS for On-Scroll Filter Projects Plugin
 */

:root {
    --osf-color-text: #fff;
    --osf-color-bg: #000;
    --osf-color-bg-alt: hsl(15deg 55% 6%);
    --osf-color-link: rgba(255, 255, 255, 0.5);
    --osf-color-link-hover: #fff;
    --osf-color-title: #e93f33;
}

.osf-enabled {
    color: var(--osf-color-text);
    background-color: var(--osf-color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Page Loader */
.js.loading::before,
.js.loading::after {
    content: '';
    position: fixed;
    z-index: 1000;
}

.js.loading::before {
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--osf-color-bg);
}

.js.loading::after {
    top: 50%;
    left: 50%;
    width: 60px;
    height: 60px;
    margin: -30px 0 0 -30px;
    border-radius: 50%;
    opacity: 0.4;
    background: var(--osf-color-link);
    animation: loaderAnim 0.7s linear infinite alternate forwards;
}

@keyframes loaderAnim {
    to {
        opacity: 1;
        transform: scale3d(0.5, 0.5, 1);
    }
}

/* Links styling */
.osf-enabled a {
    text-decoration: none;
    color: var(--osf-color-link);
    outline: none;
    cursor: pointer;
}

.osf-enabled a:hover {
    color: var(--osf-color-link-hover);
    outline: none;
}

/* Better focus styles from https://developer.mozilla.org/en-US/docs/Web/CSS/:focus-visible */
.osf-enabled a:focus {
    /* Provide a fallback style for browsers that don't support :focus-visible */
    outline: none;
    background: lightgrey;
}

.osf-enabled a:focus:not(:focus-visible) {
    /* Remove the focus indicator on mouse-focus for browsers that do support :focus-visible */
    background: transparent;
}

.osf-enabled a:focus-visible {
    /* Draw a very noticeable focus style for keyboard-focus on browsers that do support :focus-visible */
    outline: 2px solid red;
    background: transparent;
}

/* Reset button styling */
.osf-unbutton {
    background: none;
    border: 0;
    padding: 0;
    margin: 0;
    font: inherit;
    cursor: pointer;
}

.osf-unbutton:focus {
    outline: none;
}

/* Smooth scrolling */
.osf-enabled.lenis {
    height: auto;
}

.osf-enabled .lenis.lenis-smooth {
    scroll-behavior: auto;
}

.osf-enabled .lenis.lenis-smooth [data-lenis-prevent] {
    overscroll-behavior: contain;
}

.osf-enabled .lenis.lenis-stopped {
    overflow: hidden;
}

.osf-enabled .lenis.lenis-scrolling iframe {
    pointer-events: none;
}

/* Prevent FOUC (Flash of Unstyled Content) */
.js .osf-content-wrap {
    visibility: visible;
}

.no-js .osf-content-wrap {
    visibility: hidden;
}

/* Ensure SVG elements are visible */
.osf-enabled .osf-content__img {
    display: block;
}

/* Adapt base styling for themes */
body.osf-enabled {
    margin-bottom: 50vh;
    overflow-x: hidden;
}

/* Circular Stack Animation */
.osf-circular-stack__item {
    transition: transform 0.3s ease-in-out;
}

.osf-circular-stack:hover .osf-circular-stack__item {
    transform: scale(1.1);
}

/* Credits */
.osf-credits {
    font-size: 1rem;
    text-align: center;
    margin: 2rem 0;
}

/* Single project container */
.osf-single-project .osf-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}