.swiper-button-next,
.swiper-button-prev {
    opacity: 1 !important;
    visibility: visible !important;
    display: block !important;
}
.button-next,.button-prev{
    width: 45px;
    height: 45px;
    position: absolute;
    top: 50%;
    right: 0;
    z-index: 2;
    border: 1px solid #ccc;
    border-radius: 50%;
    line-height: 45px;
    text-align: center;
    background: #fff;
}
.button-prev{
    right: auto;
    left: 0;
}

.speaking-practice{
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 20px;
}
.speaking-question-group{
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.speaking-question-media{
    text-align: center;
}
.speaking-question-media img{
    max-width: 100%;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(15,23,42,0.08);
}
.speaking-question-card{
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    padding: 20px;
    box-shadow: 0 10px 30px rgba(15,23,42,0.05);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.speaking-question-card.is-recording{
    border-color: #f97316;
    box-shadow: 0 12px 32px rgba(249,115,22,0.18);
}
.speaking-question-card.is-playing{
    border-color: #0ea5e9;
    box-shadow: 0 12px 32px rgba(14,165,233,0.18);
}
.speaking-question-header h5{
    margin: 0 0 8px;
    font-weight: 600;
    color: #1f2937;
}
.speaking-question-text{
    color: #1f2937;
    font-size: 16px;
    line-height: 1.5;
}
.speaking-question-actions{
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 16px;
}
.speaking-btn{
    border-radius: 8px;
    border: 1px solid transparent;
    padding: 8px 16px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.speaking-btn:hover:not(.disabled):not(:disabled){
    transform: translateY(-1px);
    box-shadow: 0 8px 20px rgba(15,23,42,0.12);
}
.speaking-btn:active:not(.disabled):not(:disabled){
    transform: translateY(0);
    box-shadow: none;
}
.speaking-btn.disabled,
.speaking-btn:disabled{
    opacity: 0.55;
    cursor: not-allowed;
    box-shadow: none;
}
.speaking-btn.listen-question{
    background: #e0f2fe;
    border-color: #bae6fd;
    color: #0369a1;
}
.speaking-btn.start-record{
    background: #fee2e2;
    border-color: #fecaca;
    color: #b91c1c;
}
.speaking-btn.stop-record{
    background: #fef3c7;
    border-color: #fde68a;
    color: #b45309;
}
.speaking-btn.play-record{
    background: #dcfce7;
    border-color: #bbf7d0;
    color: #047857;
}
.speaking-btn.delete-record{
    background: #f1f5f9;
    border-color: #e2e8f0;
    color: #475569;
}
.speaking-question-status{
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 16px;
    gap: 12px;
    font-size: 14px;
    color: #475569;
}
.speaking-question-status .record-timer{
    font-variant-numeric: tabular-nums;
    font-weight: 600;
    color: #0f172a;
}
.status-indicator{
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 8px;
    background: #cbd5f5;
    flex-shrink: 0;
}
.status-idle{
    background: #cbd5f5;
}
.status-recording{
    background: #f97316;
    animation: speaking-pulse 1.2s ease-in-out infinite;
}
.status-completed{
    background: #10b981;
}
.status-error{
    background: #ef4444;
}
@keyframes speaking-pulse{
    0%{box-shadow:0 0 0 0 rgba(249,115,22,0.45);}
    70%{box-shadow:0 0 0 8px rgba(249,115,22,0);}
    100%{box-shadow:0 0 0 0 rgba(249,115,22,0);}
}

/* Audio Player Design */
.question-audio-player{
    display: none !important;
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 8px;
    padding: 10px 16px;
    background: linear-gradient(135deg, #e0f2fe 0%, #bae6fd 100%);
    border-radius: 10px;
    border: 1px solid #7dd3fc;
}

.audio-waveform{
    display: flex;
    align-items: center;
    gap: 4px;
    height: 24px;
}

.waveform-bar{
    width: 4px;
    height: 12px;
    background: #0369a1;
    border-radius: 2px;
    transition: height 0.3s ease;
}

.audio-waveform.is-playing .waveform-bar{
    animation: waveform-animation 0.6s ease-in-out infinite;
}

.audio-waveform.is-playing .waveform-bar:nth-child(1){animation-delay: 0s;}
.audio-waveform.is-playing .waveform-bar:nth-child(2){animation-delay: 0.1s;}
.audio-waveform.is-playing .waveform-bar:nth-child(3){animation-delay: 0.2s;}
.audio-waveform.is-playing .waveform-bar:nth-child(4){animation-delay: 0.3s;}
.audio-waveform.is-playing .waveform-bar:nth-child(5){animation-delay: 0.4s;}

@keyframes waveform-animation{
    0%, 100%{height: 12px; transform: scaleY(1);}
    50%{height: 20px; transform: scaleY(1.3);}
}

.audio-status-text{
    font-size: 13px;
    font-weight: 600;
    color: #0369a1;
}

.speaking-question-header{
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 12px;
}

.speaking-question-header h5{
    margin: 0;
    flex: 1;
}

.speaking-btn i{
    font-size: 14px;
    margin-right: 6px;
}

.speaking-btn{
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.speaking-question-card.is-playing-audio{
    border-color: #0ea5e9;
    box-shadow: 0 12px 32px rgba(14,165,233,0.2);
}

.speaking-question-card.is-playing-audio .question-audio-player{
    background: linear-gradient(135deg, #0ea5e9 0%, #0284c7 100%);
    border-color: #0369a1;
}

.speaking-question-card.is-playing-audio .waveform-bar{
    background: #ffffff;
}

.speaking-question-card.is-playing-audio .audio-status-text{
    color: #ffffff;
}

/* Style cho phần sub-content của Speaking Practice */
#practice-side .sub-content{
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #ffffff;
    padding: 18px 24px;
    border-radius: 12px;
    margin-bottom: 24px;
    box-shadow: 0 4px 20px rgba(102, 126, 234, 0.2);
    border: none !important;
    position: relative;
    overflow: hidden;
}

#practice-side .sub-content::before{
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    pointer-events: none;
}

#practice-side .sub-content .part-title{
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 12px;
    margin-right: 12px;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.15);
    letter-spacing: 0.5px;
    position: relative;
    z-index: 1;
    background: rgba(255, 255, 255, 0.15);
    padding: 6px 14px;
    border-radius: 8px;
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.25);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    text-align: left;
    text-transform: uppercase;
}

.part-audio-btn{
    background: rgba(255, 255, 255, 0.25);
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: 6px;
    width: 28px;
    height: 28px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    padding: 0;
    margin: 0;
    color: #ffffff;
    font-size: 14px;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.part-audio-btn:hover{
    background: rgba(255, 255, 255, 0.35);
    border-color: rgba(255, 255, 255, 0.5);
    transform: scale(1.1);
}

.part-audio-btn:active{
    transform: scale(0.95);
}

.part-audio-btn.is-playing{
    background: rgba(255, 255, 255, 0.4);
    animation: part-audio-pulse 1.2s ease-in-out infinite;
}

.part-audio-btn i{
    margin: 0;
}

@keyframes part-audio-pulse{
    0%, 100%{opacity: 1; transform: scale(1);}
    50%{opacity: 0.7; transform: scale(1.1);}
}

#practice-side .sub-content p{
    font-size: 15px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.95);
    position: relative;
    z-index: 1;
    margin: 0;
    padding: 0;
}