:root {
    --bg-color: #121212;
    --surface-color: #1e1e1e;
    --primary-color: #bb86fc;
    --secondary-color: #03dac6;
    --text-color: #e0e0e0;
    --text-secondary: #a0a0a0;
    --button-bg: #333333;
    --button-hover: #444444;
    --button-focus: #bb86fc;
    --button-text: #ffffff;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    --radius: 12px;
}

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

body {
    font-family: 'Inter', 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    /* Previeni zoom su TV e schermi grandi */
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
    text-size-adjust: 100%;
    touch-action: manipulation;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    width: 100%;
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
}

h1,
h2 {
    color: var(--text-color);
    text-align: center;
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

h2 {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: var(--text-secondary);
    font-weight: 400;
}

.iframe-container {
    width: 100%;
    max-width: 900px;
    aspect-ratio: 16 / 9;
    background-color: #000;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
    position: relative;
}

.iframe-container:fullscreen {
    width: 100vw;
    height: 100vh;
    max-width: none;
    aspect-ratio: unset;
    border-radius: 0;
    padding: 0;
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: black;
}

.iframe-container:fullscreen iframe {
    width: 100%;
    height: 100%;
    border: none;
}

iframe {
    width: 100%;
    height: 100%;
    border: none;
    display: block;
}

.buttons-container {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
    width: 100%;
}

.canal-button {
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: 600;
    background-color: var(--button-bg);
    border: 2px solid transparent;
    border-radius: var(--radius);
    color: var(--button-text);
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: var(--shadow);
    min-width: 120px;
}

.canal-button:hover {
    background-color: var(--button-hover);
    transform: translateY(-2px);
}

.canal-button:focus {
    outline: none;
    border-color: var(--button-focus);
    background-color: var(--button-hover);
    box-shadow: 0 0 0 4px rgba(187, 134, 252, 0.2);
}

.canal-button.active {
    background-color: var(--primary-color);
    color: #000;
}

footer {
    margin-top: auto;
    padding: 2rem 0;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

#loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--bg-color);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.loading-svg {
    width: 100px;
    height: 100px;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        opacity: 0.6;
        transform: scale(0.95);
    }

    50% {
        opacity: 1;
        transform: scale(1.05);
    }

    100% {
        opacity: 0.6;
        transform: scale(0.95);
    }
}

.instructions {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 0.5rem;
    opacity: 0.7;
}

.hidden {
    display: none !important;
}


@media (max-width: 768px) {
    .container {
        padding: 10px;
    }

    h1 {
        font-size: 1.8rem;
    }

    h2 {
        font-size: 1rem;
    }

    .iframe-container {
        max-width: 100%;
        aspect-ratio: 16 / 9;
    }

    .buttons-container {
        gap: 0.8rem;
    }

    .canal-button {
        padding: 10px 20px;
        font-size: 0.9rem;
        flex: 1 1 auto;
    }
}