* { margin: 0; padding: 0; box-sizing: border-box; }

body, html {
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    background: #000;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

#display-container {
    width: 100vw;
    height: 100vh;
    position: relative;
}

#slide-stage {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0; left: 0;
}

.slide {
    position: absolute;
    top: 0; left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
}

.slide.active { opacity: 1; }

.slide.fade-out { opacity: 0; }
.slide.slide-out-left { transform: translateX(-100%); opacity: 0; }
.slide.slide-in-right { transform: translateX(100%); opacity: 1; }
.slide.zoom-out { transform: scale(0); opacity: 0; }
.slide.dissolve-out { opacity: 0; filter: blur(10px); }

.slide-content {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
}

.slide-image {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.slide-text {
    color: #fff;
    font-size: 3rem;
    text-align: center;
    padding: 2rem;
}

.slide-bg-color { position: absolute; top: 0; left: 0; width: 100%; height: 100%; z-index: -1; }

#error-screen, #no-content-screen, #loading-screen {
    position: absolute;
    top: 0; left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #000;
    color: #fff;
    z-index: 100;
}

.error-content, .no-content-content, .loading-content {
    text-align: center;
}

.error-content h1, .no-content-content h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.error-content p, .no-content-content p {
    font-size: 1.5rem;
    color: #888;
    margin-bottom: 2rem;
}

#error-clock, #no-content-clock {
    font-size: 4rem;
    font-weight: 300;
    margin-bottom: 2rem;
}

.display-name-tag {
    position: absolute;
    bottom: 10px;
    right: 10px;
    font-size: 0.8rem;
    color: #555;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 3px solid #333;
    border-top: 3px solid #fff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.hidden { display: none !important; }