:root {
    --bg-dark: #000000;
    --card-bg: #ffffff;
    --accent: #00e676;
    --focus-border: #ffd700;
    --strip-blue: #003366;
    --text-white: #ffffff;
    --text-gray: #a0a0a0;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    user-select: none;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-white);
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    position: relative;
}

/* =========================================
   REPRODUCTOR
   ========================================= */
.player-container {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    background: #000;
}

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

.player-loader {
    position: absolute;
    inset: 0;
    background: #000000;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2;
    transition: opacity 0.5s ease;
}

.player-loader.hidden {
    opacity: 0;
    pointer-events: none;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255, 255, 255, 0.1);
    border-top: 4px solid var(--accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* =========================================
   BANNER SUPERIOR (OSD)
   ========================================= */
.tv-banner {
    position: absolute;
    top: 30px;
    left: 40px;
    background: rgba(12, 16, 22, 0.92);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-left: 6px solid var(--accent);
    border-radius: 10px;
    padding: 14px 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    z-index: 20;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.8);
    opacity: 0;
    transform: translateY(-20px);
    transition: opacity 0.4s ease, transform 0.4s ease;
    max-width: 80vw;
}

.tv-banner.visible {
    opacity: 1;
    transform: translateY(0);
}

.banner-badge {
    padding: 5px 12px;
    font-size: 13px;
    font-weight: 800;
    border-radius: 5px;
    letter-spacing: 1px;
}

.banner-badge.live { background: #e50914; color: #fff; animation: pulse 1.5s infinite; }
.banner-badge.ch { background: var(--focus-border); color: #000; }
.banner-badge.sport { background: rgba(255, 255, 255, 0.15); color: var(--accent); text-transform: uppercase; }

.banner-divider { width: 1px; height: 35px; background: rgba(255, 255, 255, 0.2); }

.banner-info h2 {
    font-size: 20px;
    font-weight: 700;
    color: #fff;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.banner-info p {
    font-size: 13px;
    color: var(--text-gray);
    margin-top: 3px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* =========================================
   PANEL LATERAL IZQUIERDO (CANALES)
   ========================================= */
.side-panel {
    position: absolute;
    top: 0;
    left: 0;
    width: 400px;
    max-width: 85vw; /* 100% responsivo para pantallas más chicas */
    height: 100vh;
    background: linear-gradient(to right, rgba(10, 14, 20, 0.98) 0%, rgba(10, 14, 20, 0.85) 85%, transparent 100%);
    backdrop-filter: blur(12px);
    z-index: 30;
    display: flex;
    flex-direction: column;
    padding: 40px 30px;
    transform: translateX(-100%);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 20px 0 50px rgba(0, 0, 0, 0.8);
}

.side-panel.visible {
    transform: translateX(0);
}

.side-panel-header {
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.side-panel-title {
    font-size: 20px;
    font-weight: 800;
    letter-spacing: 1px;
    color: var(--focus-border);
    text-transform: uppercase;
}

.side-panel-hint {
    font-size: 12px;
    color: var(--text-gray);
    margin-top: 6px;
    font-weight: 600;
}

.side-panel-list {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding-right: 20px; /* Margen para difuminado */
    
    /* OCULTAR SCROLLBARS NATIVOS */
    -ms-overflow-style: none;  /* IE y Edge */
    scrollbar-width: none;  /* Firefox */
}

.side-panel-list::-webkit-scrollbar {
    display: none; /* Chrome, Safari y Opera */
}

.channel-item {
    background: rgba(255, 255, 255, 0.03);
    border: 2px solid transparent;
    border-radius: 10px;
    padding: 14px 18px;
    display: flex;
    flex-direction: column;
    gap: 5px;
    transition: background 0.2s, border-color 0.2s, transform 0.2s;
}

.channel-item-header {
    display: flex;
    align-items: center;
    gap: 12px;
}

.channel-item-index {
    font-size: 12px;
    font-weight: 800;
    color: var(--bg-dark);
    background: var(--text-white);
    padding: 3px 8px;
    border-radius: 4px;
}

.channel-item-name {
    font-size: 15px;
    font-weight: 700;
    color: #ffffff;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.channel-item-meta {
    font-size: 12px;
    color: var(--text-gray);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    padding-left: 48px;
}

.channel-item.focused {
    background: rgba(255, 215, 0, 0.15);
    border-color: var(--focus-border);
    transform: translateX(10px); /* Efecto pop-out */
}

.channel-item.playing {
    border-left: 4px solid var(--accent);
}
.channel-item.playing .channel-item-index {
    background: var(--accent);
}

/* =========================================
   MENÚ INFERIOR (DEPORTES)
   ========================================= */
.sports-bar {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 125px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.95) 0%, rgba(0, 0, 0, 0.7) 65%, transparent 100%);
    display: flex;
    align-items: center;
    padding: 0 40px;
    z-index: 15;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.sports-bar.hidden {
    transform: translateY(100%);
}

.sports-bar-track {
    display: flex;
    gap: 14px;
    align-items: center;
    overflow-x: hidden;
    width: 100%;
    padding: 10px 0;
}

.sport-card {
    min-width: 135px;
    width: 135px;
    height: 90px;
    background: var(--card-bg);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
    border: 3px solid transparent;
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
    flex-shrink: 0;
}

.sport-card-count {
    position: absolute;
    top: 5px;
    right: 6px;
    background: rgba(0, 0, 0, 0.8);
    color: #fff;
    font-size: 10px;
    font-weight: 800;
    padding: 2px 6px;
    border-radius: 10px;
}

.sport-card-logo {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 8px;
    background: #ffffff;
}

.sport-card-logo img {
    max-height: 40px;
    max-width: 80px;
    object-fit: contain;
}

.sport-card-logo .fallback-icon { font-size: 28px; }

.sport-card-strip {
    background-color: var(--strip-blue);
    color: #ffffff;
    height: 26px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 6px;
}

.sport-card-strip span {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: block;
    width: 100%;
    text-align: center;
}

.sport-card.focused {
    border-color: var(--focus-border);
    transform: scale(1.08) translateY(-6px);
    box-shadow: 0 0 20px rgba(255, 215, 0, 0.6);
    z-index: 10;
}

.sport-card.active-sport {
    border-color: var(--accent);
}