/* ================================================
   TTS Player — Premium News Reader UI
   ================================================ */

/* Player Container */
.tts-player-wrap {
    margin: 18px 0;
    border-radius: 14px;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.18), 0 2px 8px rgba(15, 52, 96, 0.12);
    padding: 18px 22px;
    position: relative;
    overflow: hidden;
    z-index: 10;
}
.tts-player-wrap::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -30%;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(83, 52, 131, 0.25) 0%, transparent 70%);
    pointer-events: none;
}

/* Top Row: Listen label + main controls */
.tts-top-row {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
}

.tts-label {
    display: flex;
    align-items: center;
    gap: 7px;
    color: #e0e0e0;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.3px;
    white-space: nowrap;
    font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
}
.tts-label .tts-icon {
    font-size: 20px;
    filter: drop-shadow(0 0 4px rgba(83, 176, 255, 0.4));
}

/* Control buttons */
.tts-controls {
    display: flex;
    align-items: center;
    gap: 6px;
}

.tts-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    border: none;
    border-radius: 8px;
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    letter-spacing: 0.2px;
    position: relative;
    overflow: hidden;
}
.tts-btn:active {
    transform: scale(0.95);
}

/* Play button */
.tts-btn-play {
    background: linear-gradient(135deg, #00b4d8, #0077b6);
    color: #fff;
    box-shadow: 0 3px 12px rgba(0, 119, 182, 0.35);
}
.tts-btn-play:hover {
    background: linear-gradient(135deg, #00c4e8, #0088c6);
    box-shadow: 0 5px 20px rgba(0, 119, 182, 0.5);
    transform: translateY(-1px);
}

/* Pause button */
.tts-btn-pause {
    background: linear-gradient(135deg, #f77f00, #e36414);
    color: #fff;
    box-shadow: 0 3px 12px rgba(227, 100, 20, 0.35);
}
.tts-btn-pause:hover {
    background: linear-gradient(135deg, #ff8f10, #f37424);
    box-shadow: 0 5px 20px rgba(227, 100, 20, 0.5);
    transform: translateY(-1px);
}

/* Resume button */
.tts-btn-resume {
    background: linear-gradient(135deg, #06d6a0, #059669);
    color: #fff;
    box-shadow: 0 3px 12px rgba(5, 150, 105, 0.35);
}
.tts-btn-resume:hover {
    background: linear-gradient(135deg, #16e6b0, #15a679);
    box-shadow: 0 5px 20px rgba(5, 150, 105, 0.5);
    transform: translateY(-1px);
}

/* Stop button */
.tts-btn-stop {
    background: linear-gradient(135deg, #ef476f, #d90429);
    color: #fff;
    box-shadow: 0 3px 12px rgba(217, 4, 41, 0.3);
}
.tts-btn-stop:hover {
    background: linear-gradient(135deg, #ff577f, #e91439);
    box-shadow: 0 5px 20px rgba(217, 4, 41, 0.45);
    transform: translateY(-1px);
}

/* Hidden state */
.tts-btn.tts-hidden {
    display: none !important;
}

/* Settings Row */
.tts-settings-row {
    display: flex;
    align-items: center;
    gap: 18px;
    margin-top: 12px;
    flex-wrap: wrap;
}

.tts-setting-group {
    display: flex;
    align-items: center;
    gap: 6px;
}

.tts-setting-label {
    color: #a0aec0;
    font-size: 12px;
    font-weight: 500;
    white-space: nowrap;
    font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
}

/* Speed Slider */
.tts-speed-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100px;
    height: 5px;
    border-radius: 5px;
    background: linear-gradient(90deg, #0077b6, #00b4d8);
    outline: none;
    cursor: pointer;
}
.tts-speed-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
    cursor: pointer;
    transition: transform 0.15s ease;
}
.tts-speed-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}
.tts-speed-slider::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
    cursor: pointer;
    border: none;
}

.tts-speed-val {
    color: #00b4d8;
    font-size: 12px;
    font-weight: 700;
    min-width: 32px;
    text-align: center;
    font-family: 'Segoe UI Semibold', 'Helvetica Neue', Arial, sans-serif;
}

/* Voice Selector */
.tts-voice-select {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 6px;
    color: #e0e0e0;
    font-size: 12px;
    padding: 4px 8px;
    max-width: 180px;
    cursor: pointer;
    font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
}
.tts-voice-select:focus {
    outline: none;
    border-color: #00b4d8;
    box-shadow: 0 0 0 2px rgba(0, 180, 216, 0.25);
}
.tts-voice-select option {
    background: #1a1a2e;
    color: #e0e0e0;
}

/* Progress bar */
.tts-progress-wrap {
    margin-top: 10px;
    height: 3px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
}
.tts-progress-bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #00b4d8, #06d6a0);
    border-radius: 3px;
    transition: width 0.3s ease;
}

/* Status text */
.tts-status {
    color: #718096;
    font-size: 11px;
    margin-top: 6px;
    font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    text-align: right;
}

/* ================================================
   Sentence highlighting in article content
   ================================================ */
.tts-highlight {
    background: linear-gradient(135deg, rgba(0, 180, 216, 0.18), rgba(6, 214, 160, 0.18));
    border-left: 3px solid #00b4d8;
    padding: 2px 6px;
    border-radius: 4px;
    transition: all 0.3s ease;
    display: inline;
}

/* Not-supported banner */
.tts-not-supported {
    display: none;
    color: #f77f00;
    font-size: 12px;
    margin-top: 8px;
    font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
}

/* ================================================
   Responsive
   ================================================ */
@media (max-width: 768px) {
    .tts-player-wrap {
        padding: 14px 16px;
        border-radius: 10px;
    }
    .tts-top-row {
        gap: 10px;
    }
    .tts-btn {
        padding: 7px 12px;
        font-size: 12px;
    }
    .tts-settings-row {
        gap: 12px;
    }
    .tts-speed-slider {
        width: 80px;
    }
    .tts-voice-select {
        max-width: 140px;
    }
}

@media (max-width: 480px) {
    .tts-top-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    .tts-settings-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
}