/* ==========================================================================
   Base Variables & Body Styles
   ========================================================================== */
   :root {
    --bg-primary: #f8f9fa;        /* 主要背景色 (非常淺的灰) */
    --bg-secondary: #ffffff;      /* 次要背景色 (白色，用於卡片、模態框等) */
    --text-primary: #212529;      /* 主要文字顏色 (深灰) */
    --border-color: #dee2e6;      /* 邊框顏色 */
    --accent-color: #6c5ce7;      /* 強調色 (紫色系) */
    --accent-light: #a29bfe;      /* 淺強調色 */
    --shadow-color: rgba(0, 0, 0, 0.1); /* 陰影顏色 */
    --danger-color: #e74c3c;      /* 危險/錯誤顏色 */
    --success-color: #2ecc71;    /* 成功顏色 */
}

body.dark-mode {
    --bg-primary: #1a1a2e;        /* 深藍紫色 */
    --bg-secondary: #16213e;      /* 更深的藍紫色，用於卡片等 */
    --text-primary: #e2e2e2;      /* 淺灰色文字 */
    --border-color: #0f3460;      /* 深藍色邊框 */
    --accent-color: #a29bfe;      /* 亮紫色 (與淺色模式的 accent-light 交換) */
    --accent-light: #6c5ce7;      /* 深紫色 (與淺色模式的 accent-color 交換) */
    --shadow-color: rgba(0, 0, 0, 0.4);
    --danger-color: #ff5e57;      /* 亮紅色 */
    --success-color: #00d68f;    /* 亮綠色 */
}

body {
    margin: 0;
    overflow: hidden; /* 防止頁面滾動，因為視窗是 fixed 定位 */
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* ==========================================================================
   Toolbar Styles
   ========================================================================== */
.toolbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 50px; /* 根據你的設定調整 */
    background-color: var(--bg-secondary);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
    box-sizing: border-box;
    z-index: 3000; /* 確保在最上層 */
    box-shadow: 0 2px 10px var(--shadow-color);
    border-bottom: 1px solid var(--border-color);
}

.toolbar-left, .toolbar-right {
    display: flex;
    align-items: center;
    gap: 15px; /* 按鈕間距 */
}

.toolbar-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    display: flex;
    align-items: center;
    justify-content: center; /* 確保圖示在按鈕內也居中 */
    border-radius: 50%; /* 圓形按鈕背景 */
    transition: background-color 0.2s ease;
    color: var(--text-primary); /* 確保圖示顏色繼承 */
}

.toolbar-btn:hover {
    background-color: var(--accent-light);
    color: var(--bg-secondary); /* 懸停時圖示顏色反白 */
}

.toolbar-btn svg {
    width: 22px;
    height: 22px;
    fill: currentColor; /* 讓 SVG 顏色繼承按鈕的 color 屬性 */
    transition: fill 0.2s ease;
}

.toolbar-btn .material-symbols-outlined {
    font-size: 22px;
    line-height: 1;
    vertical-align: middle;
    color: currentColor; /* 繼承按鈕的 color */
    transition: color 0.2s ease;
}

/* ==========================================================================
   Canvas Styles
   ========================================================================== */
#canvas {
    cursor: crosshair;
    background-color: var(--bg-primary); /* 與 body 背景一致 */
    margin-top: 50px; /* 讓出工具列的高度 */
    height: calc(100vh - 50px); /* 佔滿剩餘的視窗高度 */
    display: block; /* 確保 canvas 是塊級元素，避免下方有空隙 */
}

/* ==========================================================================
   Context Menu Styles
   ========================================================================== */
#contextMenu {
    position: fixed;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 15px var(--shadow-color);
    display: none; /* 由 JS 控制顯示 */
    z-index: 4000;
    border-radius: 8px;
    overflow: hidden; /* 配合圓角 */
    animation: fadeIn 0.15s ease-out;
    min-width: 180px;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-5px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

#contextMenu ul {
    list-style-type: none;
    padding: 5px 0;
    margin: 0;
}

#contextMenu ul li {
    padding: 10px 20px;
    cursor: pointer;
    transition: background-color 0.15s ease, color 0.15s ease;
    font-size: 14px;
    color: var(--text-primary);
}

#contextMenu ul li:hover {
    background-color: var(--accent-color);
    color: white;
}

body.dark-mode #contextMenu ul li:hover {
    background-color: var(--accent-light);
    color: var(--bg-secondary);
}


/* ==========================================================================
   Draggable Window General Styles
   ========================================================================== */
.draggable-window {
    position: fixed;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    box-shadow: 0 8px 25px var(--shadow-color);
    resize: both;
    overflow: hidden;
    min-width: 250px;
    min-height: 150px;
    z-index: 2000;
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    animation: windowFadeIn 0.2s ease-out;
}

@keyframes windowFadeIn {
    from { opacity: 0; transform: scale(0.95) translateY(10px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

.draggable-window .header {
    background-color: var(--accent-color);
    color: white;
    padding: 10px 15px;
    cursor: move;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-radius: 9px 9px 0 0;
    font-weight: 500;
    height: 40px;
    box-sizing: border-box;
}

.draggable-window .close-btn {
    cursor: pointer;
    font-weight: bold;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background-color: transparent;
    color: white;
    transition: background-color 0.2s ease, color 0.2s ease;
    font-size: 16px;
}

.draggable-window .close-btn:hover {
    background-color: var(--danger-color);
    color: white;
}

.draggable-window > div:not(.header) {
    flex-grow: 1;
    overflow: auto;
    padding: 10px;
    box-sizing: border-box;
    background-color: var(--bg-secondary);
    border-radius: 0 0 9px 9px;
}


/* ==========================================================================
   Output Window Specific Styles
   ========================================================================== */
.output-window .header .controls {
    display: flex;
    gap: 8px;
    align-items: center;
    margin-left: auto;
    margin-right: 10px;
}

.output-window .header .controls button {
    background-color: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    transition: background-color 0.2s ease;
}

.output-window .header .controls button:hover {
    background-color: rgba(255, 255, 255, 0.3);
}

.output-window .header .controls button.active {
    background-color: white;
    color: var(--accent-color);
}

body.dark-mode .output-window .header .controls button {
    background-color: rgba(0, 0, 0, 0.2);
    border-color: rgba(255, 255, 255, 0.2);
}
body.dark-mode .output-window .header .controls button:hover {
    background-color: rgba(0, 0, 0, 0.4);
}
body.dark-mode .output-window .header .controls button.active {
    background-color: var(--text-primary);
    color: var(--bg-secondary);
}

.output-window .output-text-box {
    width: 100%;
    height: 100%;
    overflow-y: auto;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 13px;
    line-height: 1.6;
    white-space: pre-wrap;
    word-break: break-all;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 10px;
}


/* ==========================================================================
   Text Input Window Specific Styles
   ========================================================================== */
.text-input-window textarea.text-input {
    width: 100%;
    height: 100%;
    border: none;
    resize: none;
    padding: 10px;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 14px;
    line-height: 1.5;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border-radius: 0 0 9px 9px;
}

body.dark-mode .text-input-window textarea.text-input {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}


/* ==========================================================================
   Eyes Value Matrix & Image Matrix Window Styles  <-- *** MODIFICATION 1 ***
   ========================================================================== */

/* This group selector applies the style to buttons in BOTH windows */
.eyes-value-matrix-window .mode-btn,
.image-matrix-window .mode-btn {
    padding: 4px 8px;
    font-size: 12px;
    font-weight: 500;
    border: 1px solid transparent;
    background-color: rgba(255, 255, 255, 0.15);
    color: white;
    cursor: pointer;
    border-radius: 4px;
    transition: background-color 0.2s ease, border-color 0.2s ease;
    min-width: 30px;
    text-align: center;
}

.eyes-value-matrix-window .mode-btn:hover,
.image-matrix-window .mode-btn:hover {
    background-color: rgba(255, 255, 255, 0.3);
}

.eyes-value-matrix-window .mode-btn.active,
.image-matrix-window .mode-btn.active {
    background-color: white;
    color: var(--accent-color);
    border-color: white;
}

/* Dark mode styles for BOTH windows */
body.dark-mode .eyes-value-matrix-window .mode-btn,
body.dark-mode .image-matrix-window .mode-btn {
    background-color: rgba(0, 0, 0, 0.2);
}
body.dark-mode .eyes-value-matrix-window .mode-btn:hover,
body.dark-mode .image-matrix-window .mode-btn:hover {
    background-color: rgba(0, 0, 0, 0.4);
}
body.dark-mode .eyes-value-matrix-window .mode-btn.active,
body.dark-mode .image-matrix-window .mode-btn.active {
    background-color: var(--text-primary);
    color: var(--bg-secondary);
    border-color: var(--text-primary);
}

/* Styles specific to the OLD grid-based window */
.eyes-value-matrix-window .matrix-cell {
    transition: background-color 0.1s ease;
}


/* ==========================================================================
   Controller Window Styles
   ========================================================================== */
.controller-window .controller-content {
    /* Styles for controller content */
}
.controller-window .header-controls {
    /* Styles for header controls */
}
.controller-window .header-controls .add-btn {
    background-color: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    width: 26px;
    height: 26px;
    font-size: 18px;
    padding: 0;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}
.controller-window .header-controls .add-btn:hover {
    background-color: rgba(255, 255, 255, 0.3);
}
body.dark-mode .controller-window .header-controls .add-btn {
    background-color: rgba(0, 0, 0, 0.2);
    border-color: rgba(255,255,255,0.1);
}
body.dark-mode .controller-window .header-controls .add-btn:hover {
    background-color: rgba(0, 0, 0, 0.4);
}

.controller-window .controls {
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: center;
}

.controller-window .button-row {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
}

.controller-window .controls button {
    flex: 0 1 auto;
    padding: 10px 15px;
    font-size: 14px;
    min-width: 50px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s ease;
    border-radius: 6px;
    font-weight: 500;
}

.controller-window .controls button:hover {
    background-color: var(--accent-light);
    color: var(--bg-secondary);
    transform: translateY(-1px);
    box-shadow: 0 2px 5px var(--shadow-color);
}

.controller-window .controls button.active {
    background-color: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
    box-shadow: 0 3px 8px rgba(108, 92, 231, 0.4);
}

body.dark-mode .controller-window .controls button {
    background-color: var(--bg-secondary);
    border-color: var(--border-color);
}
body.dark-mode .controller-window .controls button:hover {
    background-color: var(--accent-light);
    color: var(--bg-secondary);
}
body.dark-mode .controller-window .controls button.active {
    background-color: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}


/* ==========================================================================
   Slider Window Styles
   ========================================================================== */
.slider-window .slider-content {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.slider-window .slider-container {
    display: flex;
    align-items: center;
    gap: 10px;
}

.slider-window .slider-container label {
    flex: 0 0 100px;
    text-align: right;
    font-size: 13px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.slider-window .slider-container input[type="range"] {
    flex-grow: 1;
    margin: 0;
    height: 8px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--border-color);
    border-radius: 5px;
    outline: none;
}
.slider-window input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    background: var(--accent-color);
    cursor: pointer;
    border-radius: 50%;
    border: 2px solid var(--bg-secondary);
    box-shadow: 0 1px 3px var(--shadow-color);
}
.slider-window input[type="range"]::-moz-range-thumb {
    width: 16px;
    height: 16px;
    background: var(--accent-color);
    cursor: pointer;
    border-radius: 50%;
    border: 2px solid var(--bg-secondary);
    box-shadow: 0 1px 3px var(--shadow-color);
}

.slider-window .slider-container .slider-value {
    width: 35px;
    text-align: left;
    font-size: 13px;
}

.slider-window .remove-slider-btn {
    background: var(--danger-color);
    color: white;
    border: none;
    width: 22px;
    height: 22px;
    font-size: 12px;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    line-height: 1;
}
.slider-window .remove-slider-btn:hover{
    opacity: 0.8;
}

.slider-window .slider-controls {
    display: flex;
    justify-content: center;
    margin-top: 10px;
}

.slider-window .add-slider-btn {
    background-color: var(--accent-light);
    color: var(--bg-secondary);
    border: none;
    padding: 6px 12px;
    font-size: 13px;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.2s ease;
}
.slider-window .add-slider-btn:hover {
    background-color: var(--accent-color);
}


/* ==========================================================================
   Bluetooth Status Button Styles
   ========================================================================== */
.bluetooth-status {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 6px 12px !important;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
}
.bluetooth-status:hover{
    background-color: var(--border-color);
}

.bluetooth-status.connected {
    background-color: var(--success-color);
    color: white;
    border-color: var(--success-color);
}
.bluetooth-status.connected:hover {
    background-color: #27ae60;
}

.bluetooth-status svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
    margin-right: 6px;
}
.bluetooth-status.connected svg {
    fill: white;
}

.bluetooth-status-text {
    font-size: 13px;
    font-weight: 500;
}