/* --- NEW: Audio Player Block --- */
        .nk-audio-player {
            display: flex;
            align-items: center;
            gap: 0.35rem;
            background-color: var(--bg-tertiary);
            border: 1px solid var(--border-color);
            border-left: 5px solid var(--primary-color);
            border-radius: var(--border-radius-lg);
            padding: 0.75rem 1rem;
            margin: 0.25em;
            box-shadow: var(--shadow-sm);
            user-select: none;
            position: relative;
        }

        .audio-settings-wrapper {
            position: relative;
            display: inline-flex;
            align-items: center;
        }

        .audio-settings-btn {
            padding: 6px 10px;
            font-size: 0.9rem;
            border-radius: 8px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.2s ease;
        }

        .audio-settings-btn:hover {
            color: var(--primary-color);
            transform: scale(1.05);
        }

        .audio-popover-menu {
            display: none;
            position: absolute;
            right: 0;
            top: calc(100% + 6px);
            z-index: 1000;
            background-color: var(--bg-primary);
            border: 1px solid var(--border-color);
            border-radius: 10px;
            padding: 4px 6px;
            box-shadow: var(--shadow-md);
            gap: 6px;
            align-items: center;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }

        .audio-popover-menu .btn-icon {
            padding: 6px 10px;
            border-radius: 6px;
            font-size: 0.85rem;
            font-weight: 600;
            cursor: pointer;
            border: 1px solid transparent;
            background: transparent;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.15s ease;
        }

        .audio-popover-menu .btn-icon:hover {
            background-color: var(--bg-secondary);
            border-color: var(--border-color);
        }

        .audio-delete-btn:hover {
            color: #ef4444 !important;
            background-color: rgba(239, 68, 68, 0.1) !important;
            border-color: rgba(239, 68, 68, 0.2) !important;
        }

        .audio-play-pause-btn {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: none;
            background-color: var(--primary-color);
            cursor: pointer;
            transition: all 0.2s ease;
            position: relative;
        }

        .audio-play-pause-btn:hover {
            transform: scale(1.05);
            background-color: var(--primary-color-hover);
        }

        /* --- NEW: Refined Write Mode Toolbar (Modern Clean Design - Seamless) --- */
        .controls-wrapper.write-mode-controls {
            display: none;
            align-items: center;
            gap: 0.25rem;
            padding: 0 2px;
            margin-right: -0.25rem;
        }

        .read-mode .controls-wrapper.write-mode-controls {
            display: none !important;
        }

        .write-mode .controls-wrapper.write-mode-controls {
            display: flex;
        }

        /* Hide elements that shouldn't appear in Write Mode */
        .write-mode #unified-heart-btn,
        .write-mode [data-action="switchToWrite"] {
            display: none !important;
        }

        /* Surgical Button Styling for Write Toolbar */
        .write-mode-controls .btn-icon {
            color: var(--text-secondary);
            font-size: 1.15rem;
            opacity: 0.8;
            transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            width: 36px;
            /* MATCH READ MODE: Larger influence zone */
            height: 36px;
            /* MATCH READ MODE */
            border-radius: 8px;
            /* Softer squares */
            padding: 0;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .write-mode-controls .btn-icon:hover {
            opacity: 1;
            color: var(--primary-color);
            background-color: var(--bg-secondary);
            transform: translateY(-1px);
        }

        /* Masterpiece Save Button */
        .btn-icon.btn-save-circle {
            background-color: #8D6E63;
            color: white !important;
            border-radius: 50%;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(141, 110, 99, 0.3);
            /* Softer, richer shadow */
            margin: 0 4px;
            /* Minimal margin */
            border: 2px solid white;
            position: relative;
            flex-shrink: 0;
        }

        .btn-icon.btn-save-circle:hover {
            background-color: #795548;
            transform: scale(1.05);
            box-shadow: 0 6px 16px rgba(141, 110, 99, 0.4);
            border-color: #fff;
        }

        .btn-icon.btn-save-circle svg {
            width: 20px;
            height: 20px;
            fill: currentColor;
        }

        /* Play icon (triangle) */
        .audio-play-pause-btn::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 55%;
            transform: translate(-50%, -50%);
            border-style: solid;
            border-width: 8px 0 8px 14px;
            border-color: transparent transparent transparent var(--text-on-primary);
            transition: opacity 0.2s ease, transform 0.2s ease;
        }

        /* Pause icon (bars) */
        .audio-play-pause-btn::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 43%;
            transform: translate(-50%, -50%);
            width: 4px;
            height: 16px;
            background-color: var(--text-on-primary);
            box-shadow: 6px 0 0 0 var(--text-on-primary);
            opacity: 0;
            transition: opacity 0.2s ease;
        }

        .audio-play-pause-btn.playing::before {
            opacity: 0;
            transform: translate(-50%, -50%) scale(0.5);
        }

        .audio-play-pause-btn.playing::after {
            opacity: 1;
        }

        .audio-progress-bar-container {
            flex-grow: 1;
        }

        .audio-progress-bar {
            width: 100%;
            cursor: pointer;
        }

        .audio-time-display {
            font-family: var(--font-body);
            font-size: 0.85rem;
            color: var(--text-secondary);
            font-variant-numeric: tabular-nums;
            min-width: 85px;
            text-align: center;
        }

        .nk-audio-player audio {
            display: none;
        }

        /* Style for the recording indicator */
        .recording-visualizer {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 32px;
            box-shadow: 0 6px 8px -1px rgba(141, 110, 99, 0.5);
        }

        /* Category Pill Select */
        .category-select-wrapper {
            position: relative;
            display: flex;
            align-items: center;
        }

        select.category-pill-select {
            appearance: none;
            -webkit-appearance: none;
            background-color: var(--bg-secondary);
            border: none;
            border-radius: 12px;
            padding: 0.3rem 1.8rem 0.3rem 0.7rem;
            /* Compact padding */
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-primary);
            cursor: pointer;
            outline: none;
            transition: background-color 0.2s;
            max-width: 140px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23666' viewBox='0 0 16 16'%3E%3Cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 0.6rem center;
        }

        select.category-pill-select:hover {
            background-color: var(--bg-hover);
        }

        /* Vertical Divider - REMOVED for consistency */
        .control-divider {
            display: none;
        }

        /* --- NEW: Reusable Gradient Text Style --- */
        .btn-gradient-text {
            background-size: 200% auto;
            background-clip: text;
            background-clip: text;
            -webkit-background-clip: text;
            color: transparent;
            animation: witty-text-glow 8s linear infinite;
        }

        [data-theme="light"] .btn-gradient-text {
            background-image: linear-gradient(90deg, #0d9488, #581c87, #be185d, #0d9488);
        }

        [data-theme="dark"] .btn-gradient-text {
            background-image: linear-gradient(90deg, #fde047, #6ee7b7, #f472b6, #fde047);
        }

        [data-theme="sepia"] .btn-gradient-text {
            background-image: linear-gradient(90deg, #b45309, #55a630, #92400e, #b45309);
        }


        /* --- REFINED: Transcribe Button Aesthetics --- */
        .nk-transcribe-container .btn.btn-secondary {
            font-weight: 600;
            /* Bolder for emphasis */
            border: 2.5px solid var(--primary-color);
            border-radius: 50% 20% / 10% 40%;
            padding: 0.6rem 1.2rem;
            background-color: var(--bg-tertiary);
            transition: all 0.2s ease-in-out;
        }

        .nk-transcribe-container .btn.btn-secondary:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow);
            border-color: var(--primary-color);
        }

        /* --- NEW: Toast Wave Animation --- */
        .toast-wave-container {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .toast-wave-visualizer {
            display: flex;
            align-items: center;
            gap: 3px;
            height: 20px;
        }

        .toast-wave-visualizer .wave-bar {
            width: 4px;
            height: 100%;
            background-color: currentColor;
            border-radius: 2px;
            animation: toast-wave-dance 1.2s ease-in-out infinite;
        }

        .toast-wave-visualizer .wave-bar:nth-child(2) {
            animation-delay: -1.0s;
        }

        .toast-wave-visualizer .wave-bar:nth-child(3) {
            animation-delay: -0.8s;
        }

        .toast-wave-visualizer .wave-bar:nth-child(4) {
            animation-delay: -0.6s;
        }

        @keyframes toast-wave-dance {

            0%,
            100% {
                transform: scaleY(0.2);
            }

            50% {
                transform: scaleY(1.0);
            }
        }