:root {
    --primary-dark-bg: #2e2e2e;
    --dark-text: #2e2e2e;
    --light-text: #fff;
    --accent-green: #5F9F72;
    --accent-green-darker: #4A8C60;
    --light-bg-body: #f8f9fa;
    --card-bg: #fff;
    --button-primary: #007bff; 
    --button-primary-hover: #0056b3;
    --quiz-button-color: #198754; 
    --quiz-button-hover-color: #156d44;
    --dictation-input-bg: #f2f2f2;
    --dictation-input-border: #ccc;
}

body {
    font-family: 'Montserrat', sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--light-bg-body);
    color: var(--dark-text);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    /* padding-top removed */
}

/* --- FIX: Navbar styling removed --- */
/* Removed .navbar, .navbar-brand, .navbar-nav to prevent conflict with common.css */

/* Dictation Section Specific Styles */
.dictation-section {
    padding: 40px 15px; /* Reduced padding */
    background-color: var(--light-bg-body);
    flex-grow: 1;
}

.section-title {
    font-family: 'Playfair Display', serif;
    font-weight: bold;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--dark-text);
    text-align: center;
    margin-top: 0%;
}

.content-card {
    background-color: var(--card-bg);
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    padding: 30px;
    margin-bottom: 30px;
}

.level-select-btn {
    background-color: var(--accent-green);
    color: var(--light-text);
    border: none;
    border-radius: 8px;
    padding: 10px 20px;
    margin: 5px;
    font-weight: 600;
    transition: background-color 0.2s ease, transform 0.1s ease;
}

.level-select-btn:hover {
    background-color: var(--accent-green-darker);
    transform: translateY(-2px);
}

.level-select-btn.active {
    background-color: var(--primary-dark-bg);
    border: 2px solid var(--accent-green);
}

.file-list-item {
    cursor: pointer;
    padding: 10px 15px;
    border-bottom: 1px solid #eee;
    transition: background-color 0.2s ease;
}

.file-list-item:hover {
    background-color: #f0f0f0;
}
.file-list-item.active {
    background-color: #e0ffe0; 
    font-weight: bold;
    color: cadetblue;
}

/* Custom Player Control Styles */
.audio-player-container {
    text-align: center;
    margin-top: 20px;
    margin-bottom: 20px;
}
.audio-player-container audio {
    display: none; 
}

#customPlayerControls {
    display: none; 
    background-color: #f0f0f0; 
    padding: 15px;
    border-radius: 10px;
    box-shadow: inset 0 1px 3px rgba(0,0,0,0.1);
    max-width: 600px; 
    margin: 0 auto;
    
    display: flex; 
    align-items: center; 
    justify-content: space-between; 
    flex-wrap: wrap; 
    gap: 10px; 
}

.player-controls-top-row,
.player-controls-bottom-row {
    display: contents; 
}

.btn-player-control {
    background-color: transparent; 
    color: var(--dark-text); 
    border: none;
    padding: 8px 12px; 
    border-radius: 8px;
    font-weight: 600;
    transition: background-color 0.2s ease, transform 0.1s ease;
    box-shadow: none; 
    cursor: pointer;
    min-width: 40px; 
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem; 
}
.btn-player-control:hover {
    background-color: rgba(0,0,0,0.05); 
    transform: translateY(-1px);
}
.btn-player-control:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}
.btn-player-control.play-pause-btn {
    font-size: 2rem; 
}

.btn-share {
    background-color: #25D366;
    color: white;
    border: none;
    border-radius: 50px;
    padding: 8px 20px;
    font-size: 14px;
    transition: all 0.3s ease;
}

.btn-share:hover {
    background-color: #128C7E;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.btn-share i {
    margin-right: 8px;
}

/* Progress Bar */
.progress-container {
    flex-grow: 1; 
    position: relative;
    height: 8px; 
    background: #d3d3d3;
    border-radius: 5px;
    margin: 0 10px; 
    cursor: pointer;
}
#progressBar {
    position: absolute;
    height: 100%;
    background: #ff6347; 
    border-radius: 5px;
    width: 0%; 
}
#progressDot {
    position: absolute;
    width: 16px;
    height: 16px;
    background: #ff6347; 
    border-radius: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    left: 0%; 
    box-shadow: 0 1px 3px rgba(0,0,0,0.3);
    pointer-events: none; 
}

/* Time Display */
.time-display {
    font-family: 'Courier Prime', monospace;
    font-size: 0.9rem;
    color: var(--dark-text);
    white-space: nowrap; 
}

/* Volume Slider */
#volumeSlider {
    -webkit-appearance: none;
    width: 80px; 
    height: 6px; 
    background: #d3d3d3;
    border-radius: 3px;
    outline: none;
    opacity: 0.9;
    transition: opacity .2s;
    vertical-align: middle;
    margin-left: 5px; 
}
#volumeSlider:hover {
    opacity: 1;
}
#volumeSlider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px; 
    height: 16px;
    border-radius: 50%;
    background: var(--accent-green);
    cursor: pointer;
    border: 1px solid var(--light-text);
    box-shadow: 0 1px 2px rgba(0,0,0,0.2);
}
#volumeSlider::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent-green);
    cursor: pointer;
    border: 1px solid var(--light-text);
    box-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

/* Playback Speed Control */
.speed-control {
    display: flex;
    align-items: center;
    gap: 5px;
    white-space: nowrap;
}
.speed-control button {
    padding: 5px 8px; 
    font-size: 0.9rem;
    background-color: transparent;
    color: var(--dark-text);
    border: 1px solid #ccc;
    border-radius: 5px;
    cursor: pointer;
}
.speed-control button:hover {
    background-color: #e0e0e0;
}
#speedPercentage {
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    color: var(--dark-text);
    min-width: 45px; 
    text-align: center;
}

/* Dictation Input Area */
#dictationInput {
    width: 100%;
    min-height: 150px;
    padding: 15px;
    border: 1px solid var(--dictation-input-border);
    border-radius: 8px;
    background-color: var(--dictation-input-bg);
    font-family: 'Courier Prime', monospace; 
    font-size: 1.1rem;
    line-height: 1.5;
    resize: vertical; 
}
#dictationControls { 
    margin-top: 20px;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
}
#dictationControls button {
    padding: 12px 25px;
    font-size: 1.1rem;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.2s ease;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}
#dictationControls button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 10px rgba(0,0,0,0.15);
}
.btn-submit {
    background-color: var(--quiz-button-color); 
    border-color: var(--quiz-button-color);
    color: var(--light-text);
}
.btn-submit:hover {
    background-color: var(--quiz-button-hover-color);
    border-color: var(--quiz-button-hover-color);
}
.btn-reset {
    background-color: #6c757d; 
    border-color: #6c757d;
    color: var(--light-text);
}
.btn-reset:hover {
    background-color: #5a6268;
    border-color: #545b62;
}

/* Feedback / Results Area */
#dictationFeedback {
    margin-top: 30px;
    padding: 20px;
    border-radius: 15px;
    background-color: #e6f7ff; 
    border: 1px solid #b3e0ff;
    display: none; 
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}
#dictationFeedback h4 {
    font-family: 'Playfair Display', serif;
    color: var(--dark-text);
    margin-bottom: 15px;
}
.feedback-line {
    font-family: 'Courier Prime', monospace;
    font-size: 1.05rem;
    line-height: 1.8;
    word-wrap: break-word; 
}
.correct-word {
    color: var(--quiz-button-color);
    font-weight: bold;
}
.incorrect-word {
    color: #dc3545; 
    text-decoration: underline;
    font-weight: bold;
}
.score-display {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--dark-text);
    margin-top: 20px;
}
.score-display .percentage {
    color: var(--accent-green);
    font-size: 1.8rem;
}
.score-display .icon {
    font-size: 2rem;
    margin-right: 10px;
    vertical-align: middle;
}

/* Footer Styling */
.footer {
    background-color: var(--primary-dark-bg);
    color: var(--light-text);
    padding: 20px 0;
    text-align: center;
    font-size: 0.8rem;
    margin-top: auto;
    box-shadow: 0 -2px 5px rgba(0,0,0,0.2);
}

.footer p {
    margin-bottom: 5px;
}

.footer .social-icons a {
    color: var(--light-text);
    font-size: 1.2rem;
    margin: 0 8px;
    transition: color 0.3s ease;
}

.footer .social-icons a:hover {
    color: var(--accent-green);
}

/* Responsive Adjustments */
@media (max-width: 991.98px) { 
    .dictation-section {
        padding: 30px 15px;
    }
    .section-title {
        font-size: 2rem;
        margin-bottom: 2rem;
    }
    .col-md-4, .col-md-8 { 
        flex: 0 0 100%;
        max-width: 100%;
    }
    #customPlayerControls {
        flex-direction: column; 
        align-items: center; 
        gap: 15px; 
        padding: 15px 10px; 
    }
    #customPlayerControls > * { 
        width: 100%; 
        display: flex; 
        justify-content: center; 
        align-items: center;
        gap: 8px; 
    }

    .player-controls-top-row,
    .player-controls-bottom-row {
        display: flex; 
        flex-wrap: wrap; 
        justify-content: center; 
    }

    .progress-container {
        margin: 10px 0; 
    }
    #volumeSlider {
        flex-grow: 1; 
        width: auto; 
    }
    .speed-control {
        gap: 3px; 
    }
    .file-list-item {
        font-size: 0.95rem; 
    }
}
@media (max-width: 767.98px) { 
    #customPlayerControls {
        padding: 10px 5px; 
    }
    .player-controls-top-row,
    .player-controls-bottom-row {
        justify-content: space-around; 
    }
}
@media (max-width: 575.98px) { 
    .dictation-section {
        padding: 20px 10px;
    }
    .section-title {
        font-size: 1.8rem;
        margin-bottom: 1.5rem;
    }
    .content-card {
        padding: 20px;
    }
    .level-select-btn {
        padding: 8px 15px;
        font-size: 0.9rem;
        margin: 3px;
    }
    #dictationControls button {
        width: 100%; 
        padding: 10px 20px;
        font-size: 1rem;
    }
    #dictationInput {
        min-height: 120px;
        font-size: 1rem;
        padding: 10px;
    }
    .score-display {
        font-size: 1.2rem;
    }
    .score-display .percentage {
        font-size: 1.5rem;
    }
    .score-display .icon {
        font-size: 1.5rem;
    }
    .feedback-line {
        font-size: 0.95rem;
    }
    .btn-player-control {
        padding: 6px 10px; 
        font-size: 1.3rem; 
        min-width: 35px;
    }
    .btn-player-control.play-pause-btn {
        font-size: 1.8rem; 
    }
    .time-display {
        font-size: 0.8rem;
    }
}