html, body {
    height: 100svh;
    min-height: 100dvh;
}

body { 
    margin: 0; 
    overflow: hidden; 
    background-color: #000000; 
    display: flex; 
    justify-content: center; 
    align-items: center; 
    font-family: Arial, sans-serif; 
    color: #dddddd; 
}

canvas { 
    display: block; 
    position: absolute; 
    top: 0; 
    left: 0; 
    z-index: 1; 
}

.top-left-controls {
    position: absolute;
    top: 15px;
    left: 15px;
    z-index: 1006;
    display: flex;
    gap: 10px;
    align-items: center;
}

#seoToggle {
    display: block !important;
    padding: 8px 12px;
    background-color: rgba(35,35,35,0.75);
    color: #eeeeee;
    border-radius: 5px;
    font-size: 14px;
    border: 1px solid rgba(120, 120, 120, 0.4);
    cursor: pointer;
    font-family: Arial, sans-serif;
    transition: background-color 0.2s ease-out, transform 0.2s ease-out;
}

#seoToggle:hover {
    background-color: rgba(55, 55, 55, 0.9);
    transform: translateY(-2px);
}

#info-display-container, #controls-container, #resource-error, #load-status, .webgl-fallback, .mobile-controls-toggler { 
    position: absolute; 
    z-index: 10; 
}

#info-display-container { 
    top: 15px; 
    left: 50%; 
    transform: translateX(-50%); 
    text-align: center; 
    background-color: rgba(0,0,0,0.6); 
    padding: 5px 10px; 
    border-radius: 5px; 
}

#info-display-container h1 { 
    font-size: 16px; 
    margin: 0 0 3px 0; 
    font-weight: normal; 
    color: #eeeeee;
}

#info-display-container p { 
    font-size: 13px; 
    margin: 0; 
    color: #cccccc; 
}
    
#controls-container { 
    bottom: 10px; 
    left: 50%; 
    transform: translateX(-50%); 
    padding: 10px; 
    background: rgba(50, 50, 50, 0.85); 
    border-radius: 8px; 
    box-shadow: 0 2px 10px rgba(0,0,0,0.5); 
    display: flex; 
    flex-direction: column; 
    align-items: center; 
    box-sizing: border-box;
    z-index: 1000;
}

.slider-group { 
    margin-bottom: 10px; 
    display: flex; 
    align-items: center; 
    width: 320px; 
}

.slider-group label { 
    color: #eeeeee; 
    font-size: 14px; 
    margin-right: 10px; 
    width: 160px; 
    text-align: right; 
}

.slider-group input[type="range"] { 
    width: 120px; 
    margin: 0; 
    vertical-align: middle; 
}

.slider-group span { 
    font-size: 12px; 
    color: #cccccc; 
    width: 30px; 
    text-align: right; 
    vertical-align: middle; 
    display: inline-block;
}
    
#resetSettingsBtn { 
    padding: 8px 15px; 
    margin-top: 5px; 
    cursor: pointer; 
    background-color: #686868; 
    color: white; 
    border: none; 
    border-radius: 4px; 
    font-size: 13px; 
    width: auto; 
}

#resource-error { 
    top: 10px; 
    left: 10px; 
    padding: 10px; 
    background-color: #ffdddd; 
    color: #d8000c; 
    border: 1px solid #d8000c; 
    border-radius: 5px; 
    z-index: 100; 
    display: none; 
}

#load-status { 
    bottom: 5px; 
    right: 5px; 
    font-size: 10px; 
    color: #777; 
    z-index:101; 
}

.webgl-fallback { 
    text-align: center; 
    padding: 50px; 
    font-family: Arial, sans-serif; 
    color: #ccc; 
    position: absolute; 
    top: 50%; 
    left: 50%; 
    transform: translate(-50%, -50%); 
    background-color: rgba(0,0,0,0.7); 
    border-radius: 10px; 
    z-index: 200;
}

.back-to-portfolio-link { 
    padding: 8px 12px; 
    background-color: rgba(35,35,35,0.75); 
    color: #eeeeee; 
    text-decoration: none; 
    border-radius: 5px; 
    font-size: 14px; 
    border: 1px solid rgba(120, 120, 120, 0.4); 
    box-shadow: 0px 2px 3px rgba(0, 0, 0, 0.4), 
                inset 0px 1px 0px rgba(255, 255, 255, 0.1),
                inset 0px -1px 0px rgba(0, 0, 0, 0.1);
    transition: background-color 0.2s ease-out, transform 0.2s ease-out, box-shadow 0.2s ease-out;
}

.back-to-portfolio-link:hover {
    background-color: rgba(55, 55, 55, 0.9); 
    transform: translateY(-2px); 
    box-shadow: 0px 4px 6px rgba(0, 0, 0, 0.5),
                inset 0px 1px 0px rgba(255, 255, 255, 0.15),
                inset 0px -1px 0px rgba(0, 0, 0, 0.15);
}

.mobile-controls-toggler {
    display: none;
}

@media (max-width: 767px) {
    #info-display-container {
        top: 55px; 
        width: calc(100% - 30px); 
        padding-left: 5px;
        padding-right: 5px;
        box-sizing: border-box;
    }

    .mobile-controls-toggler {
        display: block;
        position: fixed;        
        bottom: max(10px, env(safe-area-inset-bottom));
        left: 50%;
        transform: translateX(-50%);
        padding: 10px 20px;
        background-color: #3a3a3a;
        color: white;
        border: 1px solid #555;
        border-radius: 5px;
        cursor: pointer;
        font-size: 13px;
        z-index: 1005; 
        box-shadow: 0px -1px 5px rgba(0,0,0,0.3);
    }

    #controls-container {
        position: fixed;
        left: 50%;
        width: 90%; 
        max-width: 340px; 
        padding: 8px; 
        background: rgba(35, 35, 35, 0.95); 
        border-radius: 8px 8px 0 0; 
        box-shadow: 0 -2px 10px rgba(0,0,0,0.5);
        transform: translateX(-50%) translateY(100%); 
        bottom: 0; 
        opacity: 0.8; 
        visibility: hidden; 
        transition: transform 0.3s ease-out, opacity 0.3s ease-out, visibility 0.3s step-end; 
        max-height: 55vh; 
        overflow-y: auto;  
        box-sizing: border-box;        
        will-change: transform, opacity;
    }

    #controls-container.is-open {
        transform: translateX(-50%) translateY(0%); 
        opacity: 1;
        visibility: visible;
        transition: transform 0.3s ease-out, opacity 0.3s ease-out, visibility 0s; 
    }

    .slider-group { 
        width: 100%; 
        display: flex; 
        align-items: center; 
        margin-bottom: 8px; 
    }

    .slider-group label { 
        text-align: left; 
        font-size: 11px; 
        color: #b0b0b0; 
        margin-right: 6px; 
        flex-basis: 90px;  
        flex-shrink: 0;    
        line-height: 1.2;
    }
    
    .slider-group input[type="range"] {
        flex-grow: 1; 
        margin-right: 6px; 
        vertical-align: middle;
        box-sizing: border-box;
        height: 20px; 
        min-width: 40px; 
        padding:0;
    }

    .slider-group span {
        font-size: 10px; 
        width: 28px; 
        text-align: right;
        color: #a0a0a0;
        box-sizing: border-box;
        flex-shrink: 0; 
    }
    
    #resetSettingsBtn {
        margin-top: 8px; 
        width: 100%; 
        box-sizing: border-box;
        font-size: 11px;
        padding: 6px 10px; 
    }
}

.seo-panel {
    position: fixed;
    top: 0; right: 0; height: 100%;
    width: 360px;
    background: rgba(35,35,35,.95);
    border-left: 1px solid rgba(120,120,120,.4);
    box-shadow: -20px 0 60px rgba(0,0,0,.35);
    transform: translateX(110%);
    opacity: 0;
    transition: transform .25s ease, opacity .25s ease;
    z-index: 1100;
    pointer-events: none;
    will-change: transform, opacity;
}

.seo-panel.open {
    transform: translateX(0);
    opacity: 1;
    pointer-events: auto;
}

.seo-panel__head { 
    display:flex; 
    justify-content:space-between; 
    align-items:center; 
    padding:12px 14px; 
    border-bottom:1px solid rgba(120,120,120,0.35); 
}

.seo-panel__body { 
    padding:14px; 
    line-height:1.6; 
    max-height:calc(100% - 48px); 
    overflow:auto; 
}

.seo-panel__body a { 
    color:#ddd; 
    text-decoration:underline; 
}

.seo-panel__close { 
    background:none; 
    border:0; 
    color:#eee; 
    font-size:22px; 
    cursor:pointer 
}

@media (max-width: 767px) {
  .seo-panel {
    left: 0; right: 0; bottom: 0; top: auto;
    width: auto; height: 65vh;
    border-left: 0;
    border-top: 1px solid rgba(120,120,120,.35);
    border-radius: 12px 12px 0 0;
    transform: translateY(110%);
    padding-bottom: max(12px, env(safe-area-inset-bottom));
    box-sizing: border-box;
  }
  .seo-panel.open { transform: translateY(0); }
}

.back-to-portfolio-link:focus-visible,
#seoToggle:focus-visible,
.seo-panel__close:focus-visible {
    outline: 2px solid #8F41E9;
    outline-offset: 3px;
    border-radius: 6px;
}

#load-status { display: none !important; }