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

body {
    font-family: 'Roboto', sans-serif;
    background-color: rgba(255, 243, 222, 0.884);
    color: #333;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* index.html ile aynı arka plan tasarımı */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    background-image: url('/img/main.png');
    background-repeat: no-repeat;
    background-size: contain;
    background-position: right center;
    background-attachment: scroll;
    z-index: -1;
    opacity: 0.95;
}

.promotion-container {
    max-width: 1000px;
    width: 100%;
    margin: 0 auto;
    padding: 30px 20px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.promotion-header {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
}

/* videos.html'deki back-link stili */
.back-link {
    margin-bottom: 10px;
    text-align: left;
    border-bottom: 1px solid orange;
    padding-bottom: 10px;
    font-size: 18px;
    font-weight: bold;
}

.back-link a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: orange;
    transition: color 0.2s ease;
}

.back-link a:hover {
    color: #ff6600;
}

.promotion-page-title {
    font-size: 2rem;
    color: #1a1a1a;
    font-family: 'Archivo Black', sans-serif;
}

.promotion-content {
    width: 100%;
    display: flex;
    justify-content: center;
}

.player-wrapper {
    width: 100%;
    aspect-ratio: 16 / 9;
    background-color: #000;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
    position: relative;
}

.player-wrapper iframe {
    width: 100%;
    height: 100%;
    border: 0;
    border-radius: 20px;
}

.placeholder-box {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background-color: #1a1a1a;
    color: #ffffff;
    padding: 24px;
    position: absolute;
    top: 0;
    left: 0;
}

.placeholder-content h3 {
    font-size: 1.4rem;
    margin-bottom: 8px;
    color: #f8f9fa;
}

.placeholder-content p {
    font-size: 1rem;
    color: #adb5bd;
}

@media (max-width: 768px) {
    body::before {
        background-size: contain;
        background-position: center bottom;
    }

    .promotion-container {
        padding: 20px 16px;
    }

    .promotion-page-title {
        font-size: 1.5rem;
    }
}