.qfone-player-container {
    position: relative;
    width: 100%;
    max-width: 100%;
    margin: 0 auto;
    background: #050505;
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 6px 20px rgba(0,0,0,0.4);
    user-select: none;
    -webkit-user-select: none;
}

.qfone-static-logo {
    position: absolute;
    z-index: 20;
    max-width: 90px;
    opacity: 0.85;
    pointer-events: none;
}
.qfone-logo-top-right { top: 15px; right: 15px; }
.qfone-logo-top-left { top: 15px; left: 15px; }
.qfone-logo-bottom-right { bottom: 65px; right: 15px; }
.qfone-logo-bottom-left { bottom: 65px; left: 15px; }

.qfone-watermark-overlay {
    position: absolute;
    z-index: 30;
    color: #ffffff;
    background: rgba(0, 0, 0, 0.4);
    padding: 6px 14px;
    font-size: 12px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    border-radius: 4px;
    pointer-events: none;
    transition: left 1.2s cubic-bezier(0.4, 0, 0.2, 1), top 1.2s cubic-bezier(0.4, 0, 0.2, 1);
    letter-spacing: 0.5px;
}

.qfone-fit-toast {
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.8);
    color: #ffcc00;
    padding: 6px 16px;
    font-size: 13px;
    font-weight: bold;
    border-radius: 20px;
    z-index: 40;
    display: none;
    pointer-events: none;
    border: 1px solid rgba(255,204,0,0.3);
}

.qfone-seek-feedback {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.6);
    color: #fff;
    padding: 15px 20px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: bold;
    z-index: 32;
    opacity: 0;
    transition: opacity 0.2s ease-in-out;
    pointer-events: none;
    backdrop-filter: blur(4px);
    border: 1px solid rgba(255,255,255,0.2);
}
.qfone-seek-rewind { left: 15%; }
.qfone-seek-forward { right: 15%; }
.qfone-seek-feedback.active { opacity: 1; }

.qfone-devtools-warning, .qfone-quiz-overlay {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.85);
    z-index: 35;
    display: flex;
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(8px);
}
.qfone-warning-box, .qfone-quiz-box {
    background: #1e293b;
    border: 1px solid rgba(255,255,255,0.15);
    padding: 25px;
    border-radius: 8px;
    text-align: center;
    max-width: 400px;
    color: #fff;
}
.qfone-warning-box h3, .qfone-quiz-box h3 { color: #f87171; margin-top: 0; }
.qfone-dismiss-warning, .qfone-quiz-opt-btn {
    background: #0051ff;
    color: #fff;
    border: none;
    padding: 10px 18px;
    margin-top: 10px;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
}
.qfone-quiz-opt-btn { display: block; width: 100%; text-align: left; background: rgba(255,255,255,0.08); }
.qfone-quiz-opt-btn:hover { background: #0051ff; }

.qfone-chapters-drawer {
    position: absolute;
    top: 0; right: 0; width: 280px; height: calc(100% - 50px);
    background: rgba(15, 23, 42, 0.95);
    z-index: 25;
    border-left: 1px solid rgba(255,255,255,0.1);
    display: flex; flex-direction: column;
    backdrop-filter: blur(10px);
}
.qfone-chapters-header {
    display: flex; justify-content: space-between; align-items: center;
    padding: 12px 15px; background: rgba(0,0,0,0.3); color: #ffcc00; font-weight: bold; font-size: 14px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}
.qfone-close-chapters { background: none; border: none; color: #fff; font-size: 20px; cursor: pointer; }
.qfone-chapters-list { overflow-y: auto; flex: 1; padding: 10px; }
.qfone-chapter-item {
    padding: 10px 12px; margin-bottom: 6px; background: rgba(255,255,255,0.05);
    border-radius: 4px; cursor: pointer; display: flex; justify-content: space-between; align-items: center;
    color: #e2e8f0; font-size: 13px;
}
.qfone-chapter-item:hover { background: rgba(0, 81, 255, 0.4); color: #fff; }

.video-js .vjs-menu-button-popup .vjs-menu { width: 110px; left: -30px; }
.video-js .vjs-menu-button-popup .vjs-menu .vjs-menu-content { 
    background-color: rgba(28, 28, 28, 0.95); border-radius: 6px; padding: 6px 0; box-shadow: 0 4px 12px rgba(0,0,0,0.5);
}
.video-js .vjs-menu li { font-size: 13px; padding: 8px 12px; text-align: center; text-transform: uppercase; }
.video-js .vjs-menu li.vjs-selected { background-color: #3ea6ff !important; color: #fff; font-weight: bold; }
.vjs-hls-quality-selector .vjs-icon-placeholder::before { font-family: VideoJS; content: "\f114"; }

.video-js .vjs-menu-button-popup .vjs-menu .vjs-menu-content::-webkit-scrollbar,
.qfone-chapters-list::-webkit-scrollbar {
    width: 0px;
    height: 0px;
    display: none;
}
.video-js .vjs-menu-button-popup .vjs-menu .vjs-menu-content,
.qfone-chapters-list {
    scrollbar-width: none;
}

.qfone-theme-academy .vjs-big-play-button {
    background-color: rgba(0, 81, 255, 0.9) !important; border: 2px solid #ffcc00 !important; border-radius: 10px !important;
    width: 70px !important; height: 70px !important; line-height: 66px !important; margin-top: -35px !important; margin-left: -35px !important;
}
.qfone-theme-academy .vjs-play-progress, .qfone-theme-academy .vjs-volume-level { background-color: #0051ff !important; }
.qfone-theme-academy .vjs-control-bar { background-color: rgba(5, 15, 35, 0.95) !important; }