/**
 * TTS Story Shortcode Styles - NATURAL-TTS APPROACH
 *
 * @package TTSStory
 */

/* Main container - NATURAL-TTS APPROACH */
.tts-story {
    margin: 20px 0;
    padding: 20px;
    border: 1px solid #ddd;
    border-radius: 8px;
    background: #f9f9f9;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    transition: all 0.3s ease;
}

.tts-story.tts-playing {
    background: #e8f4fd;
    border-color: #0073aa;
}

/* Controls Panel - MODERN DESIGN */
.tts-controls-panel {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border: 1px solid #e3e6ea;
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    backdrop-filter: blur(10px);
}

.tts-controls-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 16px;
    align-items: start;
}

.tts-controls-row:last-child {
    margin-bottom: 0;
}

.tts-control-group {
    display: flex;
    flex-direction: column;
    min-width: 200px;
}

/* Special groups for better layout */
.tts-speed-group {
    grid-column: 1 / -1;
    max-width: 400px;
    margin: 0 auto;
}

.tts-highlight-speed-group {
    grid-column: 1 / -1;
    max-width: 500px;
    margin: 0 auto;
}

.tts-control-group label {
    font-weight: 700;
    margin-bottom: 8px;
    color: #2c3e50;
    font-size: 14px;
    letter-spacing: 0.5px;
}

.tts-control-group select {
    padding: 12px 16px;
    border: 2px solid #e1e8ed;
    border-radius: 8px;
    font-size: 14px;
    background: #fff;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.tts-control-group select:focus {
    border-color: #0073aa;
    box-shadow: 0 0 0 3px rgba(0, 115, 170, 0.1);
    outline: none;
}

/* Modern Slider Container */
.tts-slider-container {
    position: relative;
    margin: 12px 0;
    padding: 8px 0;
}

.tts-slider-labels {
    display: flex;
    justify-content: space-between;
    margin-top: 6px;
    font-size: 12px;
    color: #6c757d;
    font-weight: 600;
}

.tts-slider-min {
    color: #dc3545;
    background: rgba(220, 53, 69, 0.1);
    padding: 2px 6px;
    border-radius: 4px;
}

.tts-slider-max {
    color: #28a745;
    background: rgba(40, 167, 69, 0.1);
    padding: 2px 6px;
    border-radius: 4px;
}

/* Modern Range Sliders */
.tts-control-group input[type="range"] {
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: linear-gradient(90deg, #e9ecef 0%, #dee2e6 100%);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
    transition: all 0.3s ease;
}

.tts-control-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: linear-gradient(135deg, #0073aa, #0056b3);
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 115, 170, 0.3);
    transition: all 0.3s ease;
}

.tts-control-group input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(0, 115, 170, 0.4);
}

.tts-control-group input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: linear-gradient(135deg, #0073aa, #0056b3);
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 8px rgba(0, 115, 170, 0.3);
    transition: all 0.3s ease;
}

.tts-control-group input[type="range"]::-moz-range-thumb:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(0, 115, 170, 0.4);
}

/* Highlight Speed Slider - Green Theme */
.tts-highlight-speed-select {
    background: linear-gradient(90deg, #e8f5e8 0%, #d4edda 100%);
}

.tts-highlight-speed-select::-webkit-slider-thumb {
    background: linear-gradient(135deg, #28a745, #20c997);
    box-shadow: 0 2px 8px rgba(40, 167, 69, 0.3);
}

.tts-highlight-speed-select::-webkit-slider-thumb:hover {
    box-shadow: 0 4px 12px rgba(40, 167, 69, 0.4);
}

.tts-highlight-speed-select::-moz-range-thumb {
    background: linear-gradient(135deg, #28a745, #20c997);
    box-shadow: 0 2px 8px rgba(40, 167, 69, 0.3);
}

.tts-highlight-speed-select::-moz-range-thumb:hover {
    box-shadow: 0 4px 12px rgba(40, 167, 69, 0.4);
}

.tts-control-group input[type="checkbox"] {
    margin-right: 8px;
    transform: scale(1.2);
    accent-color: #0073aa;
}

.tts-speed-display {
    font-weight: 700;
    color: #0073aa;
    margin: 8px auto 0;
    font-size: 18px;
    text-shadow: 0 1px 2px rgba(0, 115, 170, 0.1);
    background: rgba(0, 115, 170, 0.1);
    padding: 4px 12px;
    border-radius: 6px;
    display: inline-block;
}

.tts-highlight-speed-display {
    font-weight: 700;
    color: #28a745;
    margin: 8px auto 0;
    font-size: 18px;
    text-shadow: 0 1px 2px rgba(40, 167, 69, 0.1);
    background: rgba(40, 167, 69, 0.1);
    padding: 4px 12px;
    border-radius: 6px;
    display: inline-block;
}


/* Content Area */
.tts-content {
    padding: 15px;
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    margin-bottom: 15px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.tts-content:hover {
    background: #f8f9fa;
}

.tts-story.tts-playing .tts-content {
    background: #e8f4fd;
}

/* Player Controls - NEUTRAL & MODERN */
.tts-player-controls {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 16px 20px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border: 1px solid #dee2e6;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    backdrop-filter: blur(10px);
}

.tts-play-btn {
    background: linear-gradient(135deg, #6c757d, #495057);
    color: white;
    border: none;
    border-radius: 50%;
    width: 48px;
    height: 48px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 2px 8px rgba(108, 117, 125, 0.2);
    position: relative;
    overflow: hidden;
}

.tts-play-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #495057, #343a40);
    opacity: 0;
    transition: opacity 0.2s ease;
    border-radius: 50%;
}

.tts-play-btn:hover::before {
    opacity: 1;
}

.tts-play-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(108, 117, 125, 0.3);
}

.tts-play-btn:active {
    transform: scale(0.95);
    transition: transform 0.1s ease;
}

.tts-play-btn:disabled {
    background: linear-gradient(135deg, #adb5bd, #6c757d);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.tts-play-btn:disabled::before {
    opacity: 0;
}

/* Loading animation for play button */
.tts-loading {
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        box-shadow: 0 2px 8px rgba(108, 117, 125, 0.2);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 4px 12px rgba(108, 117, 125, 0.4);
    }
    100% {
        transform: scale(1);
        box-shadow: 0 2px 8px rgba(108, 117, 125, 0.2);
    }
}

.tts-progress {
    flex: 1;
    height: 8px;
    background: rgba(108, 117, 125, 0.15);
    border-radius: 10px;
    overflow: hidden;
    position: relative;
    cursor: pointer;
}

.tts-progress:hover {
    height: 10px;
    transition: height 0.2s ease;
}

.tts-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #6c757d, #495057);
    width: 0%;
    transition: width 0.1s linear;
    border-radius: 10px;
    position: relative;
    box-shadow: 0 0 8px rgba(108, 117, 125, 0.3);
}

.tts-progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 12px;
    height: 100%;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    transform: translateX(50%);
    box-shadow: 0 0 6px rgba(0, 0, 0, 0.15);
}

.tts-time {
    font-size: 14px;
    color: #495057;
    min-width: 80px;
    text-align: center;
    font-weight: 500;
}

.tts-download-btn {
    background: linear-gradient(135deg, #6c757d, #495057);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 10px 16px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 2px 8px rgba(108, 117, 125, 0.2);
}

.tts-download-btn:hover {
    background: linear-gradient(135deg, #495057, #343a40);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(108, 117, 125, 0.3);
}

.tts-download-btn:active {
    transform: translateY(0);
    transition: transform 0.1s ease;
}

.tts-download-btn:disabled {
    background: linear-gradient(135deg, #adb5bd, #6c757d);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.tts-regenerate-btn {
    background: linear-gradient(135deg, #0073aa, #0056b3);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 12px 20px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 700;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 12px rgba(0, 115, 170, 0.2);
    letter-spacing: 0.5px;
}

.tts-regenerate-btn:hover {
    background: linear-gradient(135deg, #0056b3, #004085);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 115, 170, 0.3);
}

.tts-regenerate-btn:active {
    transform: translateY(0);
    transition: transform 0.1s ease;
}

.tts-regenerate-btn:disabled {
    background: linear-gradient(135deg, #adb5bd, #6c757d);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Text highlighting styles */
.tts-word {
    transition: all 0.3s ease;
    padding: 2px 1px;
    border-radius: 3px;
}

.tts-word.tts-highlight {
    background-color: #ffeb3b !important;
    color: #000 !important;
    font-weight: bold;
    box-shadow: 0 0 8px rgba(255, 235, 59, 0.6);
    transform: scale(1.05);
}

/* Responsive design */
@media (max-width: 768px) {
    .tts-story {
        margin: 15px 0;
        padding: 12px;
    }
}