:root {
            --primary-color: #DD0B51;
            --background-color: #141414;
            --card-background-color: #222;
            --text-color: #f0f0f0;
            --focus-outline-color: #ff0057;
            --card-width: 95px;
            --card-height: 90px;
            --card-margin: 7px;
            --focus-shadow-color: var(--primary-color);
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            margin: 0;
            color: var(--text-color);
            overflow-x: hidden;
            background-color: #141414;

            &::after {
            content: "";
            width: 100%;
            height: 100%;
            background: linear-gradient(0deg, #5E2639 -100%, #050c12 60%);
            position: fixed;
            display: block;
            z-index: -1;
            top: 0;
            left: 0;
            bottom:0;
        } 
        }
        .yad-app { display: flex; flex-direction: column; min-height: 100vh; }
        .header-place { background-color: #161320; padding: 10px 0px; box-shadow: 0 2px 5px rgba(0,0,0,0.3); position: sticky; top: 0; z-index: 1000; }
        .header { display: flex; align-items: center; justify-content: space-between; width: 100%; box-sizing: border-box; padding: 0 16px; flex-wrap: nowrap; gap: 10px; }
        .header-menu-toggle { font-size: 1.5em; color: var(--text-color); cursor: pointer; padding: 8px; border-radius: 4px; flex-shrink: 0; display: flex; align-items: center; justify-content: center; width: 40px; height: 40px; line-height: 1; }
        .header-menu-toggle:focus { outline: 2px solid var(--focus-outline-color); box-shadow: 0 0 8px var(--focus-shadow-color); }
        #logo-container { display: flex; align-items: center; text-decoration: none; color: var(--text-color); flex-shrink: 0; gap: 8px; }
        #logo-container img#app-logo-img { height: 30px; object-fit: contain; margin-top: 4px; }
        .search-bar { display: flex; align-items: center; flex-grow: 1; min-width: 150px; max-width: 400px; }
        #search-input { padding: 10px 15px; border: 1px solid #e91e6369; border-radius: 20px 0 0 20px; background-color: #16161b4a; color: var(--text-color); font-size: 0.9em; flex-grow: 1; outline: none; }
        #search-input:focus { border-color: var(--primary-color); box-shadow: 0 0 5px var(--focus-shadow-color); }
        .search-bar button { padding: 10px 15px; background-color: var(--primary-color); color: white; border: none; cursor: pointer; font-size: 0.9em; outline: none; height: 38px; box-sizing: border-box;}
        #search-button { border-radius: 0 20px 20px 0; margin-left: -1px; }
        #clear-button { background-color: transparent; color: #aaa; font-size: 1.1em; margin-left: 5px; border-radius: 50%; padding: 5px; width: 38px; height: 38px; display: flex; align-items: center; justify-content: center; }
        #clear-button i { pointer-events: none; }
        .menu-panel { position: absolute; top: 60px; background-color: #050c12; border: 1px solid #e91e63; box-shadow: 0px 10px 15px rgba(0, 0, 0, 0.7); padding: 15px; z-index: 1001; width: 250px; border-radius: 4px; display: none; }
        #main-nav-panel { right: 16px; }
        #main-nav-links-container ul { list-style: none; padding: 0; margin: 0; }
        #main-nav-links-container ul li a { display: block; color: var(--text-color); text-decoration: none; padding: 10px 12px; border-radius: 4px; font-size: 0.95em; }
        #main-nav-links-container ul li a:hover,
        #main-nav-links-container ul li a:focus { background-color: var(--primary-color); color: white; outline: none; }
        #main-nav-links-container ul li a i { margin-right: 8px; width: 1.2em; text-align: center; }
        #thumb-settings-panel { left: 16px; }
        .menu-item { display: flex; flex-direction: column; color: var(--text-color); }
        .menu-item label { margin-bottom: 8px; font-size: 0.95em; font-weight: 500; }
        .slider-container { display: flex; align-items: center; gap: 10px; }
        #thumbnail-size-slider { flex-grow: 1; -webkit-appearance: none; appearance: none; width: 100%; height: 8px; background: #444; outline: none; border-radius: 4px; cursor: pointer; }
        #thumbnail-size-slider::-webkit-slider-thumb { -webkit-appearance: none; appearance: none; width: 20px; height: 20px; background: var(--primary-color); cursor: pointer; border-radius: 50%; border: 2px solid var(--background-color); box-shadow: 0 0 3px rgba(0,0,0,0.5); }
        #thumbnail-size-slider::-moz-range-thumb { width: 18px; height: 18px; background: var(--primary-color); cursor: pointer; border-radius: 50%; border: 2px solid var(--background-color); box-shadow: 0 0 3px rgba(0,0,0,0.5); }
        #thumbnail-size-slider:focus { outline: 0px solid var(--focus-outline-color); box-shadow: 0 0px 5px 5px var(--focus-shadow-color); }
        #thumbnail-size-value { font-size: 0.9em; min-width: 45px; text-align: right; color: #ccc; }
        #main-content { flex-grow: 1; padding: 20px; overflow-y: auto; }
        #loading-indicator { display: flex; flex-direction: column; align-items: center; justify-content: center; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background-color: #16161a; z-index: 9999; }
        #loading-indicator.hidden { display: none; }
        .spinner { border: 8px solid #374151; border-top: 8px solid var(--primary-color); border-radius: 50%; width: 60px; height: 60px; animation: spin 1s linear infinite; margin-bottom: 20px; }
        @keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }
        #error-message-critical { color: #ff6b6b; background-color: #3e1a1a; border: 1px solid #772a2a; padding: 20px; margin: 20px auto; border-radius: 8px; text-align: center; font-size: 1.2em; max-width: 600px; display: none; }
        .channel-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(var(--card-width), 1fr)); gap: var(--card-margin); justify-content: center; padding: var(--card-margin); }
        .channel-card { background-color: transparent; border-radius: 8px; overflow: hidden; cursor: pointer; transition: transform 0.2s ease-in-out, box-shadow 0.2s ease-in-out; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 10px; box-sizing: border-box; height: var(--card-height); border: 2px solid #e91e632b; outline: none; /* backdrop-filter: blur(10px); */}
        .channel-card:hover, .channel-card:focus { transform: scale(1.2); box-shadow: 0 0 15px var(--focus-shadow-color),inset 0 0 1px var(--focus-shadow-color); border-color: var(--primary-color); outline: 1px solid var(--focus-outline-color); z-index: 2; translate: 0px -5px; transition: 0s; backdrop-filter: blur(20px);}
        .channel-card.unplayable { opacity: 0.6; cursor: no-drop; filter: grayscale(1);}
        .channel-card-logo{width:90%;object-fit:contain;flex-grow:1;display:flex;align-items:center;justify-content:center;min-height:0;margin-bottom:8px}
        .channel-card-name{width:100%;font-size:.7em;text-align:center;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--text-color);flex-shrink:0}
        #video-player-container { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background-color: rgb(0 0 0); z-index: 2000; display: flex; flex-direction: column; align-items: center; justify-content: center; }
        #hls-player-wrapper, #shaka-player-wrapper, #youtube-player-wrapper { width: 100%; height: 100%; position: relative; }
        #hls-video-element, #video-player-element, #videojs-youtube-player { width: 100%; height: 100%; background-color: transparent; object-fit: contain; }
        #youtube-player-wrapper .video-js,
        #youtube-player-wrapper .video-js iframe { position: absolute; top: 0; left: 0; width: 100% !important; height: 100% !important; padding: 0px }
        #youtube-rightclick-overlay { position: absolute; top: 0; left: 0; width: 100%; height: 96%; z-index: 10; display: none; background-color:transparent; }
        .custom-player-poster{width:50%;max-height:50%;object-fit:contain;z-index:5;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);transform-style:preserve-3d;perspective:1200px;will-change:transform,opacity,filter;animation:intro-sequence 0.5s cubic-bezier(.7,0,.2,1) forwards,looping-pulse 4s ease-out 1.4s infinite}.custom-player-poster::after{content:'';position:absolute;left:10%;bottom:-30px;width:80%;height:20px;background:rgb(0 0 0 / .25);border-radius:50%;filter:blur(15px);transform-origin:center;z-index:-1;will-change:transform,opacity;animation:shadow-intro 1.4s cubic-bezier(.7,0,.3,1) forwards}@keyframes intro-sequence{from{transform:translate(-50%,-50%) rotateX(70deg) rotateZ(-45deg) scale(.1);opacity:0}to{transform:translate(-50%,-50%) rotateX(0deg) rotateZ(0deg) scale(1);opacity:1}}@keyframes shadow-intro{from{transform:scale(.6);opacity:0}to{transform:scale(1);opacity:.4}}@keyframes looping-pulse{0%,45%,100%{transform:translate(-50%,-50%) scale(1);filter:blur(0);opacity:1}5%{transform:translate(-50%,-50%) scale(1.01);filter:blur(2px);opacity:.7}10%{transform:translate(-50%,-50%) scale(1.03);filter:blur(10px);opacity:1}}

        #close-player-button { opacity: 0.1; transition: opacity 0.3s ease; position: absolute; top: 0; z-index: 2005; background-color: rgb(0 0 0 / 0%); color: #fff; border: none; width: 100%; height: 90%; font-size: 1.2em; cursor: pointer; display: flex; align-items: center; justify-content: center; box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3); }
        #close-player-button:focus{ background-color: transparent; opacity: 1;}
        @media (max-width: 720px) { #close-player-button { opacity: 0.8; } }
        #player-info-overlay { position: absolute; top: 20px; left: 20px; background-color: rgba(0,0,0,0.7); padding: 10px 15px; border-radius: 8px; display: flex; align-items: center; z-index: 2001; max-width: 400px; opacity: 0; visibility: hidden; transition: opacity 0.3s ease-in-out, visibility 0s 0.3s; }
        #player-info-overlay.visible { opacity: 1; visibility: visible; transition: opacity 0.3s ease-in-out, visibility 0s 0s; }
        #player-channel-logo { height: 40px; width: auto; max-width: 70px; object-fit: contain; margin-right: 10px; border-radius: 4px; }
        #player-channel-name, #player-error-message { font-size: 1.1em; color: var(--text-color); text-shadow: 1px 1px 2px black; }
        #player-info-overlay .preview-text { font-size: 0.8em; color: #ccc; display: block; margin-top: 5px; }
        #player-error-message { color: #ffaeae; }
        .toast-notification { position: fixed; bottom: 30px; left: 50%; transform: translateX(-50%); background-color: var(--primary-color); color: white; padding: 15px 25px; border-radius: 8px; box-shadow: 0 4px 15px rgba(0,0,0,0.3); z-index: 5000; font-size: 1.1em; opacity: 0; visibility: hidden; transition: opacity 0.3s ease, bottom 0.3s ease, visibility 0s 0.3s; }
        .toast-notification.show { opacity: 1; bottom: 50px; visibility: visible; transition: opacity 0.3s ease, bottom 0.3s ease, visibility 0s 0s; }
        @media (max-width: 1024px) { :root { --card-margin: 7px; } }
        @media (max-width: 768px) { .header-menu-toggle { font-size: 1.3em; padding: 6px; width: 35px; height: 35px;} #logo-container img#app-logo-img { height: 25px; margin-left: 5px;} .search-bar {min-width: 100px;} #search-input { padding: 8px 12px; font-size: 0.8em; } .search-bar button { padding: 8px 12px; font-size: 0.8em; height: 34px;} #clear-button { font-size: 1em; width: 34px; height: 34px;} .channel-card-name { font-size: 0.5em; } .channel-card {padding: 3px; } .header-place { padding: 8px 5px; } }
        @media (max-width: 480px) { :root { --card-width: 55px; --card-height: 50px; --card-margin: 5px; } #main-content { padding: 10px; } .channel-grid { padding: 5px; } .header { gap: 5px; padding: 0 8px;} .header-menu-toggle { font-size: 1.2em; padding: 5px; width: 30px; height: 30px;} #logo-container img#app-logo-img { height: 20px; } }
        .video-js { width: 100%; height: 100%; }
        @media (max-width: 480px) {
            .menu-panel {
                width: 175px
            }
            .header-menu-toggle {
                width: 5px;
            }
            .header {
                gap: 10px
            }
            #search-input {
                padding: 8px 10px;
                font-size: 0.8em;
            }
            input#search-input {
                width: 100px;
            }
            #thumb-settings-panel {
                width: 82%;
                max-width: 350px;
            }

        }