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

:root {
    --netflix-red: #e50914;
    --netflix-red-hover: #f6121d;
    --netflix-black: #141414;
    --netflix-black-soft: #181818;
    --netflix-panel: #1f1f1f;
    --netflix-panel-2: #232323;
    --netflix-border: rgba(255, 255, 255, 0.08);
    --netflix-text: #ffffff;
    --netflix-text-soft: #b3b3b3;
    --netflix-text-muted: #808080;
    --netflix-shadow: 0 20px 60px rgba(0, 0, 0, 0.55);
}

body {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    color: var(--netflix-text);
    background:
        radial-gradient(circle at top, rgba(229, 9, 20, 0.18), transparent 35%),
        linear-gradient(180deg, #0b0b0b 0%, #141414 32%, #111111 100%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 32px 20px 48px;
    overflow-x: hidden;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.18) 0%, rgba(0, 0, 0, 0.55) 100%);
    pointer-events: none;
    z-index: -3;
}

body::after {
    content: "";
    position: fixed;
    inset: 0;
    background: radial-gradient(circle at center, transparent 45%, rgba(0, 0, 0, 0.5) 100%);
    pointer-events: none;
    z-index: -2;
}

.background-pattern {
    position: fixed;
    inset: 0;
    background:
        linear-gradient(to bottom, rgba(0, 0, 0, 0.10), rgba(0, 0, 0, 0.55)),
        repeating-linear-gradient(
            90deg,
            rgba(255, 255, 255, 0.015) 0,
            rgba(255, 255, 255, 0.015) 1px,
            transparent 1px,
            transparent 120px
        );
    pointer-events: none;
    z-index: -1;
}

.container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 28px;
    width: 100%;
    max-width: 1380px;
}

/* ====== PLAYER PRINCIPAL ====== */
.tv-set {
    position: relative;
    width: 100%;
    max-width: 1180px;
    filter: drop-shadow(0 30px 60px rgba(0, 0, 0, 0.45));
}

.antenna {
    display: none;
}

.tv-body {
    position: relative;
    background:
        linear-gradient(180deg, rgba(35, 35, 35, 0.96) 0%, rgba(20, 20, 20, 0.98) 100%);
    border: 1px solid var(--netflix-border);
    border-radius: 24px;
    padding: 24px;
    box-shadow: var(--netflix-shadow);
    max-width: 100%;
    overflow: hidden;
}

.tv-body::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(229, 9, 20, 0.16), transparent 28%, transparent 72%, rgba(229, 9, 20, 0.08));
    pointer-events: none;
}

.screen-frame {
    position: relative;
    background: #000;
    padding: 0;
    border-radius: 18px;
    border: 1px solid rgba(255, 255, 255, 0.04);
    overflow: hidden;
    margin-bottom: 22px;
    box-shadow:
        0 0 0 1px rgba(255, 255, 255, 0.03),
        0 24px 45px rgba(0, 0, 0, 0.45),
        0 0 40px rgba(229, 9, 20, 0.08);
}

.screen-glass {
    position: relative;
    border-radius: 18px;
    overflow: hidden;
    background: #000;
    aspect-ratio: 16 / 9;
}

.screen-glass::after {
    content: "";
    position: absolute;
    inset: 0;
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 18px;
    pointer-events: none;
}

.screen-reflection {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(115deg, rgba(255, 255, 255, 0.14) 0%, transparent 22%, transparent 60%, rgba(255, 255, 255, 0.05) 100%);
    pointer-events: none;
    z-index: 2;
}

.video-container {
    position: relative;
    width: 100%;
    height: 100%;
    background: #000;
}

#youtubePlayer {
    width: 100%;
    height: 100%;
    border: none;
}

.scanlines {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(to top, rgba(0, 0, 0, 0.28), transparent 22%),
        repeating-linear-gradient(
            0deg,
            rgba(255, 255, 255, 0.02) 0px,
            rgba(255, 255, 255, 0.02) 1px,
            transparent 1px,
            transparent 3px
        );
    mix-blend-mode: screen;
    opacity: 0.22;
    pointer-events: none;
    z-index: 1;
}

/* ====== CABEÇALHO DO CONTEÚDO ====== */
.channel-display {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 18px;
    padding: 16px 18px;
    border-radius: 16px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.02));
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.channel-display::after {
    content: "Assista agora";
    color: var(--netflix-text-soft);
    font-size: 0.88rem;
    font-weight: 500;
    letter-spacing: 0.02em;
}

.led-light {
    width: 12px;
    height: 12px;
    background: var(--netflix-red);
    border-radius: 50%;
    box-shadow: 0 0 0 4px rgba(229, 9, 20, 0.14), 0 0 18px rgba(229, 9, 20, 0.8);
    animation: pulse 1.8s ease-in-out infinite;
}

@keyframes pulse {
    0%,
    100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(0.9);
        opacity: 0.65;
    }
}

.channel-info {
    display: flex;
    align-items: baseline;
    gap: 12px;
    color: var(--netflix-text);
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    flex: 1;
}

.channel-label {
    color: var(--netflix-text-soft);
    text-transform: uppercase;
    font-size: 0.78rem;
    letter-spacing: 0.16em;
}

.channel-number {
    color: var(--netflix-text);
    font-size: 1.55rem;
    font-weight: 700;
}

/* ====== CONTROLES ====== */
.control-panel {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    justify-content: flex-start;
    padding: 20px;
    border-radius: 18px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.02));
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.control-group {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 14px;
    border-radius: 14px;
    background: rgba(0, 0, 0, 0.22);
    border: 1px solid rgba(255, 255, 255, 0.04);
}

.control-label {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--netflix-text-muted);
    margin-right: 2px;
}

.control-btn {
    min-width: 48px;
    height: 46px;
    padding: 0 16px;
    border: none;
    border-radius: 10px;
    background: #2f2f2f;
    color: var(--netflix-text);
    font-size: 0.98rem;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.22s ease, background 0.22s ease, box-shadow 0.22s ease;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.22);
    font-family: inherit;
}

.control-btn.wide {
    min-width: 76px;
}

.control-btn:hover {
    background: var(--netflix-red);
    transform: translateY(-2px);
    box-shadow: 0 14px 28px rgba(229, 9, 20, 0.28);
}

.control-btn:active {
    transform: translateY(0);
}

/* ====== MARCA ====== */
.tv-brand {
    margin-top: 18px;
    color: var(--netflix-red);
    font-size: 1rem;
    font-weight: 800;
    letter-spacing: 0.28em;
    text-align: left;
    text-transform: uppercase;
}

.tv-stand {
    display: none;
}

/* ====== LISTA DE AULAS ====== */
.channel-list {
    width: 100%;
    max-width: 1180px;
    padding: 24px;
    background: linear-gradient(180deg, rgba(24, 24, 24, 0.94), rgba(17, 17, 17, 0.98));
    border-radius: 22px;
    border: 1px solid rgba(255, 255, 255, 0.06);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

.channel-list h3 {
    color: var(--netflix-text);
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 18px;
    text-align: left;
}

#channelListContainer {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
}

.channel-item {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    min-height: 124px;
    padding: 18px;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.06);
    cursor: pointer;
    transition: transform 0.28s ease, border-color 0.28s ease, box-shadow 0.28s ease, background 0.28s ease;
    color: var(--netflix-text);
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.015)),
        linear-gradient(135deg, rgba(229, 9, 20, 0.18), rgba(0, 0, 0, 0) 55%);
    overflow: hidden;
}

.channel-item::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.02), rgba(0, 0, 0, 0.45));
    pointer-events: none;
}

.channel-item > * {
    position: relative;
    z-index: 1;
}

.channel-item:hover {
    transform: translateY(-6px) scale(1.02);
    border-color: rgba(255, 255, 255, 0.16);
    box-shadow: 0 20px 30px rgba(0, 0, 0, 0.28);
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.02)),
        linear-gradient(135deg, rgba(229, 9, 20, 0.28), rgba(0, 0, 0, 0) 58%);
}

.channel-item.active {
    border-color: rgba(229, 9, 20, 0.88);
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.025)),
        linear-gradient(135deg, rgba(229, 9, 20, 0.45), rgba(40, 0, 0, 0.2) 60%);
    box-shadow: 0 16px 32px rgba(229, 9, 20, 0.18);
}

.channel-item .channel-num {
    display: inline-flex;
    align-items: center;
    width: fit-content;
    padding: 6px 10px;
    margin-bottom: 12px;
    border-radius: 999px;
    background: rgba(0, 0, 0, 0.35);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: #ffffff;
    font-size: 0.82rem;
    font-weight: 700;
}

.channel-item span:last-child {
    font-size: 1rem;
    line-height: 1.45;
    color: var(--netflix-text);
}

/* ====== BOTÃO EXTERNO ====== */
.buttons {
    display: flex;
    justify-content: center;
    width: 100%;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 26px;
    margin: 10px 0 0;
    background: var(--netflix-red);
    color: #fff;
    border: none;
    border-radius: 10px;
    text-decoration: none;
    transition: transform 0.22s ease, background 0.22s ease, box-shadow 0.22s ease;
    font-size: 1rem;
    font-weight: 700;
    box-shadow: 0 14px 30px rgba(229, 9, 20, 0.25);
}

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

.button2 {
    display: none;
}

.button i {
    margin-right: 8px;
}

.button2 i {
    margin-right: 1px;
}

/* ====== RODAPÉ ====== */
.footer {
    margin-top: 28px;
    text-align: center;
    color: var(--netflix-text-soft);
    font-size: 0.95rem;
    padding: 8px 20px 0;
}

/* ====== RESPONSIVIDADE ====== */
@media (max-width: 1024px) {
    .tv-body,
    .channel-list {
        padding: 20px;
    }

    .channel-display {
        flex-wrap: wrap;
    }

    .channel-display::after {
        width: 100%;
        padding-left: 30px;
    }
}

@media (max-width: 768px) {
    body {
        padding: 20px 14px 36px;
    }

    .container {
        gap: 22px;
    }

    .tv-body,
    .channel-list {
        border-radius: 18px;
        padding: 16px;
    }

    .screen-frame,
    .screen-glass,
    .screen-glass::after {
        border-radius: 14px;
    }

    .channel-display {
        gap: 12px;
        padding: 14px;
    }

    .channel-display::after {
        padding-left: 0;
        font-size: 0.8rem;
    }

    .channel-info {
        flex-wrap: wrap;
        gap: 8px;
    }

    .channel-number {
        font-size: 1.3rem;
    }

    .control-panel {
        gap: 12px;
        padding: 14px;
    }

    .control-group {
        width: 100%;
        justify-content: space-between;
        flex-wrap: wrap;
    }

    .control-btn {
        flex: 1 1 auto;
        min-width: 44px;
    }

    .tv-brand {
        font-size: 0.9rem;
        letter-spacing: 0.2em;
    }

    .channel-list h3 {
        font-size: 1.15rem;
    }

    #channelListContainer {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
        gap: 12px;
    }

    .channel-item {
        min-height: 110px;
        padding: 14px;
    }

    .channel-item span:last-child {
        font-size: 0.94rem;
    }

    .button {
        width: 100%;
        max-width: 420px;
    }
}

@media (max-width: 480px) {
    .channel-display {
        align-items: flex-start;
    }

    .channel-list h3 {
        font-size: 1rem;
    }

    #channelListContainer {
        grid-template-columns: 1fr;
    }

    .channel-item {
        min-height: 96px;
    }

    .channel-item .channel-num {
        font-size: 0.76rem;
    }

    .channel-item span:last-child {
        font-size: 0.9rem;
    }

    .footer {
        font-size: 0.88rem;
    }
}

@media (max-width: 320px) {
    .control-group {
        padding: 10px;
    }

    .control-btn,
    .control-btn.wide {
        min-width: 100%;
    }

    .button {
        padding: 12px 18px;
        font-size: 0.92rem;
    }
}