/* Viewer CSS */

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

body {
    font-family: 'Inter', sans-serif;
    background: #000;
    color: #fff;
    overflow: hidden;
    height: 100%;
    width: 100%;
    min-height: 100vh;
    min-width: 100vw;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

html {
    height: 100%;
    width: 100%;
    background: #0f172a;
}

/*
 * Some TV browsers keep a landscape viewport when the panel is mounted
 * vertically. Forced portrait authors one logical 100vh x 100vw stage and
 * rotates that single stage into the physical viewport.
 */
html.viewer-force-portrait-rotation {
    overflow: hidden;
    background: #000;
}

html.viewer-force-landscape-rotation {
    overflow: hidden;
    background: #000;
}

html.viewer-force-portrait-rotation body {
    position: fixed;
    top: 0;
    left: 100vw;
    width: 100vh;
    height: 100vw;
    min-width: 100vh;
    min-height: 100vw;
    -webkit-transform: rotate(90deg);
    transform: rotate(90deg);
    -webkit-transform-origin: 0 0;
    transform-origin: 0 0;
}

html.viewer-force-landscape-rotation body {
    position: fixed;
    top: 100vh;
    left: 0;
    width: 100vh;
    height: 100vw;
    min-width: 100vh;
    min-height: 100vw;
    -webkit-transform: rotate(-90deg);
    transform: rotate(-90deg);
    -webkit-transform-origin: 0 0;
    transform-origin: 0 0;
}

/* ── Экран подключения ── */
.pairing-screen {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    display: -webkit-box;
    display: -webkit-flex;
    display: flex;
    -webkit-box-align: center;
    -webkit-align-items: center;
    align-items: center;
    -webkit-box-pack: center;
    -webkit-justify-content: center;
    justify-content: center;
    z-index: 1000;
    padding: 24px;
    box-sizing: border-box;
    background-color: #0f172a;
    background:
        radial-gradient(ellipse 80% 60% at 50% -10%, rgba(59, 130, 246, 0.35), transparent 60%),
        radial-gradient(ellipse 50% 40% at 100% 100%, rgba(99, 102, 241, 0.18), transparent 55%),
        linear-gradient(165deg, #0b1224 0%, #111827 45%, #0f172a 100%);
}

.pairing-screen::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
    background-size: 48px 48px;
    -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 20%, transparent 100%);
    mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 20%, transparent 100%);
    pointer-events: none;
}

.pairing-card {
    position: relative;
    width: 100%;
    max-width: 560px;
    margin: 0 auto;
    padding: 36px 40px 32px;
    border-radius: 28px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(15, 23, 42, 0.92);
    box-shadow:
        0 24px 80px rgba(0, 0, 0, 0.45),
        inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.pairing-brand {
    display: -webkit-box;
    display: -webkit-flex;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -webkit-flex-direction: column;
    flex-direction: column;
    -webkit-box-align: center;
    -webkit-align-items: center;
    align-items: center;
    gap: 6px;
    margin-bottom: 28px;
}

.pairing-brand-title {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.pairing-brand-title .unicast-wordmark { max-width: 100%; }

.pairing-brand-subtitle {
    font-size: 15px;
    font-weight: 400;
    color: rgba(226, 232, 240, 0.72);
}

.pairing-qr-block {
    display: -webkit-box;
    display: -webkit-flex;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -webkit-flex-direction: column;
    flex-direction: column;
    -webkit-box-align: center;
    -webkit-align-items: center;
    align-items: center;
    gap: 14px;
    margin-bottom: 22px;
}

#pairing-qrcode {
    background: #fff;
    padding: 16px;
    border-radius: 20px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
    display: inline-block;
    line-height: 0;
}

#pairing-qrcode img,
#pairing-qrcode canvas {
    display: block;
    border-radius: 8px;
}

.pairing-qr-hint {
    font-size: 16px;
    font-weight: 400;
    color: rgba(226, 232, 240, 0.88);
    line-height: 1.5;
    max-width: 320px;
    text-align: center;
}

.pairing-divider {
    display: -webkit-box;
    display: -webkit-flex;
    display: flex;
    -webkit-box-align: center;
    -webkit-align-items: center;
    align-items: center;
    gap: 14px;
    width: 100%;
    margin: 4px 0 22px;
    color: rgba(148, 163, 184, 0.9);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.pairing-divider::before,
.pairing-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(148, 163, 184, 0.35), transparent);
}

.pairing-code-row {
    display: -webkit-box;
    display: -webkit-flex;
    display: flex;
    -webkit-box-align: center;
    -webkit-align-items: center;
    align-items: center;
    -webkit-box-pack: center;
    -webkit-justify-content: center;
    justify-content: center;
    gap: 14px;
    margin-bottom: 26px;
}

.pairing-code-segment {
    min-width: 132px;
    padding: 14px 18px;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.14);
    background: rgba(255, 255, 255, 0.06);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
    font-family: 'JetBrains Mono', 'Inter', sans-serif;
    font-size: 42px;
    font-size: clamp(36px, 7vw, 48px);
    font-weight: 700;
    letter-spacing: 0.22em;
    text-indent: 0.22em;
    line-height: 1;
    color: #f8fafc;
    text-align: center;
}

.pairing-code-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(148, 163, 184, 0.55);
    flex-shrink: 0;
}

.pairing-status {
    display: -webkit-box;
    display: -webkit-flex;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -webkit-flex-direction: column;
    flex-direction: column;
    -webkit-box-align: center;
    -webkit-align-items: center;
    align-items: center;
    gap: 14px;
    padding-top: 4px;
}

.pairing-status-text {
    font-size: 15px;
    font-weight: 500;
    color: rgba(203, 213, 225, 0.82);
}

.pairing-check-status {
    margin: 0;
    font-size: 13px;
    font-weight: 400;
    color: rgba(148, 163, 184, 0.95);
}

.pairing-status-dots {
    display: -webkit-box;
    display: -webkit-flex;
    display: flex;
    -webkit-box-align: center;
    -webkit-align-items: center;
    align-items: center;
    gap: 8px;
}

.pairing-status-dots span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #60a5fa;
    animation: pairing-dot 1.4s ease-in-out infinite;
}

.pairing-status-dots span:nth-child(2) { animation-delay: 0.2s; }
.pairing-status-dots span:nth-child(3) { animation-delay: 0.4s; }

@keyframes pairing-dot {
    0%, 80%, 100% { opacity: 0.25; transform: scale(0.85); }
    40% { opacity: 1; transform: scale(1); }
}

/* legacy hooks */
.pairing-content { display: contents; }
.pairing-or { display: none; }
.pairing-code { display: none; }
.pairing-instructions { display: contents; }
.waiting { display: none; }
.spinner { display: none; }

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Экран контента */
.content-screen {
    width: 100%;
    height: 100%;
    background: #000;
}

.media-container {
    width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
}

/* YouTube только звук + контент из «Файлы» — плеер ниже, без перекрытия */
.content-screen.youtube-audio-under-content .media-container {
    z-index: 10;
}

/* YouTube — слой из раздела «Аудио на ТВ» / синхронизация */
.youtube-sync-layer {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 50;
    background: #000;
    flex-direction: column;
    align-items: stretch;
    justify-content: center;
}

/* Без is-visible слой не должен перехватывать тапы (иначе чёрный экран «глухой» после F5). */
.youtube-sync-layer:not(.is-visible) {
    pointer-events: none !important;
}

.youtube-sync-layer.is-visible {
    display: flex;
}

/* Фоновое YouTube-аудио под основным контентом */
.youtube-sync-layer.youtube-sync-layer--parallel-audio.is-visible {
    display: block;
    background: transparent !important;
    pointer-events: none !important;
}

.youtube-sync-layer.youtube-sync-layer--parallel-audio #youtube-player-host {
    position: fixed !important;
    width: 1px !important;
    height: 1px !important;
    left: 0 !important;
    top: 0 !important;
    opacity: 0 !important;
    visibility: hidden !important;
    overflow: hidden !important;
    clip-path: inset(50%) !important;
    pointer-events: none !important;
    flex: none !important;
    min-height: 0 !important;
}

#youtube-player-host {
    flex: 1;
    width: 100%;
    min-height: 0;
}

.youtube-sync-layer--audio-only #youtube-player-host {
    position: absolute;
    width: 200px;
    height: 200px;
    left: -9999px;
    top: 0;
    flex: none;
    min-height: 0;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    overflow: hidden;
    clip-path: inset(50%);
}

.youtube-audio-only-msg {
    display: none;
    flex: 1;
    align-items: center;
    justify-content: center;
    padding: 24px;
    font-size: clamp(16px, 3vw, 22px);
    color: rgba(255, 255, 255, 0.88);
    text-align: center;
    z-index: 51;
}

.youtube-audio-only-msg.is-visible {
    display: flex;
}

.youtube-sync-hint,
.youtube-sync-error {
    display: none;
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    max-width: 90%;
    padding: 12px 20px;
    border-radius: 8px;
    font-size: clamp(14px, 2.5vw, 18px);
    text-align: center;
    color: #fff;
    z-index: 200;
}

.youtube-sync-hint {
    background: rgba(0, 0, 0, 0.78);
    pointer-events: none;
}

.youtube-sync-error {
    background: rgba(100, 20, 20, 0.92);
    pointer-events: none;
}

.youtube-sync-hint.is-visible,
.youtube-sync-error.is-visible {
    display: block;
}

.media-item {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    opacity: 0;
    z-index: 0;
    /* GPU layer promotion for buttery-smooth compositing */
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    -webkit-font-smoothing: subpixel-antialiased;
}

.media-item.active {
    opacity: 1;
    z-index: 1;
}

/* z-index layers — animation itself is applied via JS style.animation */
.media-item.fade-in,
.media-item.fade-out,
.media-item.slide-in-left,
.media-item.slide-out-left,
.media-item.slide-in-right,
.media-item.slide-out-right,
.media-item.slide-in-up,
.media-item.slide-out-up,
.media-item.slide-in-down,
.media-item.slide-out-down,
.media-item.zoom-in,
.media-item.zoom-out {
    z-index: 5;
    will-change: opacity, transform;
}

/* ─── Fade ─────────────────────────────────────────── */
@keyframes fadeIn {
    0%   { opacity: 0; transform: scale(1.03) translateZ(0); }
    100% { opacity: 1; transform: scale(1)    translateZ(0); }
}
@keyframes fadeOut {
    0%   { opacity: 1; transform: scale(1)    translateZ(0); }
    100% { opacity: 0; transform: scale(0.97) translateZ(0); }
}

/* ─── Slide Left ────────────────────────────────────── */
@keyframes slideInLeft {
    0%   { opacity: 0; transform: translateX(100%) translateZ(0); }
    5%   { opacity: 1; }
    100% { opacity: 1; transform: translateX(0)    translateZ(0); }
}
@keyframes slideOutLeft {
    0%   { opacity: 1; transform: translateX(0)      translateZ(0); }
    95%  { opacity: 1; }
    100% { opacity: 0; transform: translateX(-100%) translateZ(0); }
}

/* ─── Slide Right ───────────────────────────────────── */
@keyframes slideInRight {
    0%   { opacity: 0; transform: translateX(-100%) translateZ(0); }
    5%   { opacity: 1; }
    100% { opacity: 1; transform: translateX(0)     translateZ(0); }
}
@keyframes slideOutRight {
    0%   { opacity: 1; transform: translateX(0)    translateZ(0); }
    95%  { opacity: 1; }
    100% { opacity: 0; transform: translateX(100%) translateZ(0); }
}

/* ─── Slide Up ──────────────────────────────────────── */
@keyframes slideInUp {
    0%   { opacity: 0; transform: translateY(100%) translateZ(0); }
    5%   { opacity: 1; }
    100% { opacity: 1; transform: translateY(0)    translateZ(0); }
}
@keyframes slideOutUp {
    0%   { opacity: 1; transform: translateY(0)      translateZ(0); }
    95%  { opacity: 1; }
    100% { opacity: 0; transform: translateY(-100%) translateZ(0); }
}

/* ─── Slide Down ────────────────────────────────────── */
@keyframes slideInDown {
    0%   { opacity: 0; transform: translateY(-100%) translateZ(0); }
    5%   { opacity: 1; }
    100% { opacity: 1; transform: translateY(0)     translateZ(0); }
}
@keyframes slideOutDown {
    0%   { opacity: 1; transform: translateY(0)    translateZ(0); }
    95%  { opacity: 1; }
    100% { opacity: 0; transform: translateY(100%) translateZ(0); }
}

/* ─── Zoom ──────────────────────────────────────────── */
@keyframes zoomIn {
    0%   { opacity: 0; transform: scale(0.88) translateZ(0); }
    60%  { opacity: 1; }
    100% { opacity: 1; transform: scale(1)    translateZ(0); }
}
@keyframes zoomOut {
    0%   { opacity: 1; transform: scale(1)    translateZ(0); }
    40%  { opacity: 1; }
    100% { opacity: 0; transform: scale(1.12) translateZ(0); }
}

/* ─── No transition ─────────────────────────────────── */
.media-item.no-transition {
    transition: none;
    animation: none;
    will-change: auto;
    z-index: 10;
}
.media-item.no-transition.active {
    opacity: 1;
}
.media-item.no-transition:not(.active) {
    opacity: 0;
}

.media-item video,
.media-item img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* Сообщение */
.message {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    font-size: 24px;
    color: #999;
}

/* Индикатор загрузки */
.loading {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0, 0, 0, 0.9);
    padding: 40px 60px;
    border-radius: 8px;
    display: none;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    z-index: 2000;
    min-width: 400px;
}

.loading.active {
    display: flex;
}

#loading-text {
    font-size: 20px;
    color: #fff;
    font-weight: 500;
    margin-bottom: 10px;
}

.progress-bar-container {
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #3b82f6 0%, #1e40af 100%);
    width: 0%;
    transition: width 0.3s ease;
}

#loading-size {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.8);
    margin-top: 5px;
}

/* Полное скрытие элементов управления видео */
video {
    outline: none !important;
    pointer-events: none;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    background: #000 !important; /* Чёрный фон — скрывает иконку плей и серый placeholder */
    color-scheme: dark;
}

video::-webkit-media-controls,
video::-webkit-media-controls-enclosure,
video::-webkit-media-controls-panel,
video::-webkit-media-controls-play-button,
video::-webkit-media-controls-start-playback-button,
video::-webkit-media-controls-overlay-play-button,
video::-webkit-media-controls-overlay-enclosure,
video::-webkit-media-controls-timeline,
video::-webkit-media-controls-current-time-display,
video::-webkit-media-controls-time-remaining-display,
video::-webkit-media-controls-mute-button,
video::-webkit-media-controls-volume-slider,
video::-webkit-media-controls-fullscreen-button {
    display: none !important;
    opacity: 0 !important;
    visibility: hidden !important;
    -webkit-appearance: none !important;
}

/* Firefox */
video::-moz-media-controls {
    display: none !important;
}

/* Chromium/Android WebView внутренние контролы (Shadow DOM) */
video::-internal-media-controls-overlay-cast-button,
video::-internal-media-controls-button-panel,
video::-internal-media-controls-play-button,
video::-internal-media-controls-timeline-container,
video::-internal-media-controls-current-time-display,
video::-internal-media-controls-time-remaining-display,
video::-internal-media-controls-mute-button,
video::-internal-media-controls-volume-slider,
video::-internal-media-controls-fullscreen-button,
video::-internal-media-controls-overflow-button,
video::-internal-media-controls-download-button,
video::-internal-media-controls-picture-in-picture-button,
video::-internal-media-controls-loading-panel,
video::-internal-media-controls-text-track-list {
    display: none !important;
    opacity: 0 !important;
}

/* WebOS TV (браузер на реальном LG): CSS keyframes по <video> не рисуются — только мгновенная смена */
html.viewer-webos-tv .media-container video.media-item,
body.viewer-webos-tv .media-container video.media-item {
    animation: none !important;
    transition: none !important;
    transform: none !important;
    -webkit-transform: none !important;
}

html.viewer-webos-tv .media-container video.media-item.active,
body.viewer-webos-tv .media-container video.media-item.active {
    opacity: 1 !important;
}

/* WebOS loop slot — один постоянный <video> на весь экран */
html.viewer-webos-loop #media-container,
body.viewer-webos-loop #media-container {
    position: relative !important;
    width: 100% !important;
    height: 100% !important;
    background: #000 !important;
    overflow: hidden !important;
}

html.viewer-webos-loop .webos-loop-slot,
html.viewer-webos-loop #media-container video.media-item,
body.viewer-webos-loop .webos-loop-slot,
body.viewer-webos-loop #media-container video.media-item {
    position: absolute !important;
    inset: 0 !important;
    width: 100% !important;
    height: 100% !important;
    object-fit: contain !important;
    z-index: 1 !important;
    background: transparent !important;
}

/*
 * Production LG playback uses one undecorated media plane. webOS recognises a
 * video as fullscreen only when its box starts at 0,0 and fills the viewport;
 * transforms/transparency can make the system launch its screensaver. The
 * explicit dual-decoder test stand is excluded from this production rule.
 */
html.viewer-webos-loop:not(.viewer-webos-dual-test) .webos-loop-slot,
body.viewer-webos-loop:not(.viewer-webos-dual-test) .webos-loop-slot {
    position: fixed !important;
    inset: auto !important;
    top: 0 !important;
    left: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    border: 0 !important;
    margin: 0 !important;
    padding: 0 !important;
    background: #000 !important;
}

html.viewer-webos-loop .webos-loop-slot.webos-loop-active,
body.viewer-webos-loop .webos-loop-slot.webos-loop-active {
    z-index: 2 !important;
}

/* WebOS diag overlay (?debug=1 на index.php) */
.viewer-webos-diag-badge {
    position: fixed;
    top: 6px;
    right: 6px;
    z-index: 99999;
    background: rgba(15, 23, 42, 0.85);
    color: #94a3b8;
    font: 11px/1.35 monospace;
    padding: 4px 8px;
    border-radius: 4px;
    pointer-events: none;
    opacity: 0.55;
    border: 1px solid rgba(148, 163, 184, 0.25);
}

.viewer-webos-diag-panel {
    display: none;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    max-height: 38vh;
    z-index: 99998;
    background: rgba(0, 0, 0, 0.88);
    color: #e2e8f0;
    font: 11px/1.35 monospace;
    overflow: auto;
    padding: 8px 10px;
    border-top: 1px solid rgba(148, 163, 184, 0.3);
    pointer-events: auto;
}

.viewer-webos-diag-panel.visible {
    display: block;
}

.viewer-webos-diag-panel .row {
    padding: 2px 0;
    border-bottom: 1px solid rgba(148, 163, 184, 0.12);
    word-break: break-all;
}

.viewer-webos-diag-panel .row.warn {
    color: #fbbf24;
}

.viewer-webos-diag-panel .row.err {
    color: #f87171;
}