/* ============================================
   KIB Audio Reader Styles
   ============================================ */

/* Audio Toggle Button - Left of accessibility button */
.kib-audio-toggle {
    position: fixed;
    top: calc(50% - 110px);
    bottom: auto;
    left: 20px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.3);
    z-index: 9998;
    transition: all 0.3s ease;
}

.kib-audio-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(59, 130, 246, 0.5);
}

.kib-audio-toggle i {
    font-size: 24px;
    color: #fff;
}

/* Speaking state - animated */
.kib-audio-toggle.speaking {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    animation: pulse-audio 1.5s ease-in-out infinite;
}

@keyframes pulse-audio {
    0%,
    100% {
        transform: scale(1);
        box-shadow: 0 4px 20px rgba(16, 185, 129, 0.3);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 6px 30px rgba(16, 185, 129, 0.6);
    }
}

/* Paused state */
.kib-audio-toggle.paused {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
}

/* Audio Control Panel - Mini floating panel */
.kib-audio-controls {
    position: fixed;
    top: calc(50% - 110px);
    bottom: auto;
    left: 90px;
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.2);
    padding: 15px 20px;
    width: 400px;
    z-index: 9999;
    display: none;
    opacity: 0;
    transition: all 0.3s ease;
}

.kib-audio-controls.active {
    display: block;
    opacity: 1;
}

.kib-audio-controls h4 {
    margin: 0 0 12px 0;
    font-size: 14px;
    font-weight: 600;
    color: #1e293b;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.kib-audio-close {
    cursor: pointer;
    color: #64748b;
    font-size: 18px;
    transition: color 0.2s;
}

.kib-audio-close:hover {
    color: #1e293b;
}

/* Playback Controls */
.kib-audio-playback {
    display: flex;
    gap: 10px;
    margin-bottom: 12px;
}

.kib-audio-btn {
    flex: 1;
    padding: 8px 12px;
    border: 2px solid #e2e8f0;
    background: #f8fafc;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    color: #334155;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    pointer-events: auto;
    user-select: none;
}

.kib-audio-btn:hover {
    border-color: #cbd5e1;
    background: #e2e8f0;
}

.kib-audio-btn:active {
    transform: scale(0.98);
}

.kib-audio-btn.active {
    border-color: #3b82f6;
    background: #3b82f6;
    color: #ffffff;
}

.kib-audio-btn i {
    font-size: 14px;
}

/* Speed Control */
.kib-audio-speed {
    margin-bottom: 12px;
}

.kib-audio-speed label {
    display: block;
    font-size: 12px;
    font-weight: 500;
    color: #475569;
    margin-bottom: 6px;
}

.kib-audio-speed-buttons {
    display: flex;
    gap: 8px;
}

.kib-speed-btn {
    flex: 1;
    padding: 6px 10px;
    border: 2px solid #e2e8f0;
    background: #f8fafc;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 500;
    color: #334155;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
    pointer-events: auto;
    user-select: none;
}

.kib-speed-btn:hover {
    border-color: #cbd5e1;
    background: #e2e8f0;
}

.kib-speed-btn:active {
    transform: scale(0.98);
}

.kib-speed-btn.active {
    border-color: #3b82f6;
    background: #3b82f6;
    color: #ffffff;
}

/* Now Reading Indicator */
.kib-now-reading {
    font-size: 12px;
    color: #64748b;
    padding: 8px 12px;
    background: #f1f5f9;
    border-radius: 6px;
    margin-top: 8px;
    display: none;
}

.kib-now-reading.active {
    display: block;
}

.kib-now-reading strong {
    color: #1e293b;
}

/* Responsive */
@media (max-width: 768px) {
    .kib-audio-toggle {
        top: auto;
        bottom: 20px;
        left: 20px;
        right: auto;
        width: 50px;
        height: 50px;
    }

    .kib-audio-toggle i {
        font-size: 20px;
    }

    .kib-audio-controls {
        top: auto;
        bottom: 80px;
        left: 50%;
        transform: translateX(-50%);
        width: 90%;
        max-width: 350px;
        bottom: 80px;
    }
}