:root {
    /* 极光配色方案 (Default Aurora) */
    --bg-deep: #0b0f19;
    --bg-panel: rgba(20, 25, 40, 0.65);
    --bg-image: radial-gradient(circle at 10% 20%, rgba(192, 132, 252, 0.12) 0%, transparent 40%),
                radial-gradient(circle at 90% 80%, rgba(45, 212, 191, 0.12) 0%, transparent 40%);
    
    --primary: #c084fc; /* 霓虹紫 */
    --secondary: #2dd4bf; /* 青色/Teal */
    --accent: #f472b6; /* 粉色 */
    
    --text-main: #f1f5f9;
    --text-dim: #94a3b8;
    
    --border: rgba(255, 255, 255, 0.1);
    --glass: blur(20px);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', Consolas, monospace;

    --radius-lg: 16px;
    --radius-md: 8px;
    --radius-sm: 4px;

    /* UI Component Variables */
    --input-bg: rgba(0, 0, 0, 0.3);
    --input-border: var(--border);
    --input-focus-border: var(--primary);
    --input-height: 36px;
    --btn-bg: rgba(255, 255, 255, 0.05);
    --btn-hover-bg: rgba(255, 255, 255, 0.1);
    --bg-header: rgba(11, 15, 25, 0.8);
    --transition-speed: 0.3s;
}

* {
    box-sizing: border-box;
    outline: none;
    -webkit-tap-highlight-color: transparent;
}

/* Optimize Transitions: Only apply to specific properties on specific elements */
body, .panel, .btn, input, textarea, select, .dropdown-content, .sub-tab, .theme-card, .file-list-item, .status-badge {
    transition: background-color var(--transition-speed), border-color var(--transition-speed), color var(--transition-speed), box-shadow var(--transition-speed), transform var(--transition-speed);
}

/* Exclude transform from some to avoid layout shifts if not needed */
input, textarea, select {
    transition: background-color var(--transition-speed), border-color var(--transition-speed), color var(--transition-speed), box-shadow var(--transition-speed);
}

/* 全局滚动条美化 */
:root {
    color-scheme: dark; /* 告诉浏览器这是深色主题，启用原生暗色滚动条 */
}

/* Firefox 标准 */
* {
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.2) transparent;
}

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background-color: rgba(255, 255, 255, 0.15);
    border-radius: 4px;
    border: 2px solid transparent;
    background-clip: content-box; /* 让滚动条看起来有间距 */
}
::-webkit-scrollbar-thumb:hover {
    background-color: rgba(255, 255, 255, 0.3);
}
::-webkit-scrollbar-corner {
    background: transparent;
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-main);
    background-color: var(--bg-deep);
    background-image: var(--bg-image);
    background-attachment: fixed; /* Ensure gradient doesn't scroll if possible */
    background-size: cover;
    color: var(--text-main);
    height: auto;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    overflow-x: hidden;
    transition: background-color 0.3s, color 0.3s; /* Smooth transition */
}

/* 顶部导航 */
header {
    padding: 0 1.5rem;
    height: 60px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border);
    background: var(--bg-header);
    backdrop-filter: var(--glass);
    position: relative;
    z-index: 1000;
}

.logo {
    font-weight: 800;
    font-size: 1.2rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 1px;
    white-space: nowrap;
}

.nav-tabs {
    display: flex;
    gap: 0.5rem;
    height: 100%;
}

.tab-btn {
    background: transparent;
    border: none;
    color: var(--text-dim);
    padding: 0 1rem;
    height: 100%;
    cursor: pointer;
    font-weight: 500;
    font-size: 0.9rem;
    position: relative;
    transition: color var(--transition-speed);
    white-space: nowrap;
    text-decoration: none;
    display: flex;
    align-items: center;
}

.tab-btn:hover {
    color: var(--text-main);
}

.tab-btn.active {
    color: var(--secondary);
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--secondary);
    box-shadow: 0 -2px 8px var(--secondary);
}

/* Dropdown Styles */
.dropdown {
    position: relative;
    height: 100%;
    display: flex;
    align-items: center;
}

.dropdown-toggle::after {
    content: '▼';
    font-size: 0.6em;
    margin-left: 6px;
    opacity: 0.6;
    transition: transform var(--transition-speed);
}

.dropdown:hover .dropdown-toggle::after {
    transform: rotate(180deg);
    opacity: 1;
}

.dropdown-content {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--bg-header);
    min-width: 160px;
    box-shadow: var(--shadow);
    z-index: 1000;
    border: 1px solid var(--border);
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    padding: 0.5rem 0;
    flex-direction: column;
    backdrop-filter: var(--glass);
}

.dropdown-header {
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
    color: var(--text-dim);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    cursor: default;
    pointer-events: none;
}

.dropdown-divider {
    height: 1px;
    background: var(--border);
    margin: 0.5rem 0;
}

.dropdown:hover .dropdown-content {
    display: flex;
    animation: fadeIn 0.2s ease-out;
}

.dropdown-content .tab-btn {
    height: 40px;
    width: 100%;
    justify-content: flex-start;
    padding: 0 1.2rem;
    border-radius: 0;
    color: var(--text-dim);
}

.dropdown-content .tab-btn:hover {
    background: var(--btn-hover-bg);
    color: var(--text-main);
}

.dropdown-content .tab-btn.active {
    color: var(--secondary);
    background: color-mix(in srgb, var(--secondary), transparent 90%);
}

.dropdown-content .tab-btn.active::after {
    display: none;
}

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

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(255,255,255,0.1);
    border-top: 4px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* 主内容区域 - 桌面应用布局 */
main {
    flex: 1;
    position: relative;
    overflow: visible;
}

.tab-pane {
    width: 100%;
    height: auto;
    display: flex;
    flex-direction: column;
    padding: 1rem;
    overflow: visible;
}

/* 响应式布局容器 */
.workspace {
    display: flex;
    flex-direction: row;
    gap: 1rem;
    flex: 1 1 auto;
    min-height: auto;
    height: auto;
    overflow: visible;
    width: 100%;
    max-width: 1800px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .workspace {
        flex-direction: column;
        height: auto;
        overflow: visible;
    }
    .tab-pane {
        padding: 1rem;
        overflow: visible;
        display: block;
    }
    header {
        padding: 0 1rem;
    }
    .tab-btn {
        padding: 0 0.5rem;
        font-size: 0.8rem;
    }
    
    /* Mobile Nav */
    #main-nav {
        display: none;
    }
    #mobile-menu-btn {
        display: block !important;
    }
    
    /* Mobile Drawer Items */
    #mobile-drawer .tab-btn {
        width: 100%;
        text-align: left;
        justify-content: flex-start;
        padding: 12px;
        border-radius: 8px;
    }
    #mobile-drawer .tab-btn:hover, #mobile-drawer .tab-btn.active {
        background: rgba(255,255,255,0.05);
    }
    #mobile-drawer .group-title {
        font-size: 0.8rem;
        color: var(--text-dim);
        padding: 10px 12px 5px;
        margin-top: 10px;
        text-transform: uppercase;
        border-bottom: 1px solid rgba(255,255,255,0.05);
    }
    :root {
        --shadow: 0 2px 8px rgba(0,0,0,0.2);
        --glass: blur(8px);
    }
}

/* 输入/输出面板 */
.panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: visible;
    min-height: auto;
    backdrop-filter: blur(10px);
}

@media (max-width: 768px) {
    .panel {
        min-height: 250px;
        flex: none;
        margin-bottom: 1rem;
    }
}

.panel-header {
    padding: 0.6rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border);
    background: rgba(255,255,255,0.03);
    flex-shrink: 0;
}

.color-input-wrapper {
    display:flex;
    align-items:center;
    background:rgba(0,0,0,0.1);
    padding:5px 10px;
    border-radius:var(--radius-sm);
    border:1px solid var(--border);
    transition: border-color 0.3s;
}
.color-input-wrapper:focus-within {
    border-color: var(--primary);
}
.color-input-wrapper input[type="color"] {
    background:none;
    border:none;
    width:24px;
    height:24px;
    padding:0;
    cursor:pointer;
}
.color-input-wrapper span {
    font-size:0.8rem;
    margin-left:10px;
    font-family:var(--font-mono);
    color:var(--text-main);
    opacity: 0.8;
}

.panel-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.panel-actions {
    display: flex;
    gap: 8px;
}

.stat-badge {
    font-size: 0.75rem;
    color: var(--text-dim);
    background: rgba(0,0,0,0.3);
    padding: 2px 6px;
    border-radius: 4px;
}

/* Unified Form Elements */
input[type="text"], 
input[type="password"], 
input[type="number"],
input[type="search"],
input[type="email"],
select,
textarea {
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    color: var(--text-main);
    padding: 0.5rem 0.8rem;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
}

input:focus, 
select:focus, 
textarea:focus {
    border-color: var(--input-focus-border);
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--primary), transparent 50%);
}

input:disabled, 
select:disabled, 
textarea:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background: rgba(0,0,0,0.5);
}

textarea {
    flex: 1;
    width: 100%;
    line-height: 1.6;
    resize: vertical;
    min-height: 120px;
    height: auto;
}

/* Range Input Styling */
input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    background: transparent;
    height: 6px;
    border-radius: 3px;
    cursor: pointer;
    vertical-align: middle;
}

input[type="range"]::-webkit-slider-runnable-track {
    width: 100%;
    height: 6px;
    background: var(--input-bg);
    border-radius: 3px;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    height: 16px;
    width: 16px;
    border-radius: 50%;
    background: var(--secondary);
    margin-top: -5px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.3);
    transition: transform 0.1s;
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.1);
    background: #fff;
}

/* Checkbox Styling */
input[type="checkbox"] {
    accent-color: var(--secondary);
    width: 16px;
    height: 16px;
    cursor: pointer;
    vertical-align: middle;
}

/* Select Styling */
select {
    cursor: pointer;
    appearance: none;
    padding-right: 24px;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 8px center;
    background-size: 14px;
}

select option {
    background: #1a1f2e;
    color: var(--text-main);
}

/* 内部滚动容器 */
.scroll-content {
    flex: 1;
    overflow: visible;
    min-height: auto;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* 工具栏 */
.toolbar {
    width: 200px;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    overflow: visible;
    padding-right: 4px;
    flex-shrink: 0;
}

@media (max-width: 768px) {
    .toolbar {
        width: 100%;
        flex-direction: row;
        flex-wrap: wrap;
        max-height: none;
        overflow: visible;
        margin-bottom: 1rem;
    }
}

.tool-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.group-label {
    font-size: 0.75rem;
    color: var(--text-dim);
    margin-bottom: 2px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    opacity: 0.8;
}

.btn {
    background: var(--btn-bg);
    border: 1px solid var(--border);
    color: var(--text-main);
    padding: 0.6rem 0.8rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 0.9rem;
    transition: all var(--transition-speed);
    text-align: left;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.btn:hover {
    background: var(--btn-hover-bg);
    transform: translateY(-1px);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn.active {
    background: var(--primary);
    color: var(--primary-contrast, #fff);
    border-color: var(--primary);
    box-shadow: 0 0 10px rgba(192, 132, 252, 0.4);
}

.btn:active {
    transform: translateY(0);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.btn span {
    font-size: 0.75rem;
    color: var(--text-dim);
    font-family: monospace;
    opacity: 0.7;
}

.btn-primary {
    background: var(--primary);
    color: #fff; /* Assuming primary is always dark enough or we add text-on-primary later */
    border: none;
    text-align: center;
    justify-content: center;
    font-weight: 600;
}

.btn-primary:hover {
    background: color-mix(in srgb, var(--primary), white 20%);
    border-color: transparent;
}

.btn-secondary {
    background: color-mix(in srgb, var(--secondary), transparent 80%);
    color: var(--secondary);
    border: 1px solid color-mix(in srgb, var(--secondary), transparent 60%);
    text-align: center;
    justify-content: center;
}

.btn-secondary:hover {
    background: color-mix(in srgb, var(--secondary), transparent 70%);
}

.btn-danger {
    background: rgba(244, 63, 94, 0.2); /* Keep accent/danger separate or use --accent if it maps to danger */
    color: #f43f5e;
    border: 1px solid rgba(244, 63, 94, 0.4);
    text-align: center;
    justify-content: center;
}

.btn-danger:hover {
    background: rgba(244, 63, 94, 0.3);
}

.btn-icon {
    padding: 0.3rem 0.6rem;
    font-size: 0.8rem;
    border-radius: 4px;
}

.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: 50px;
    backdrop-filter: blur(5px);
    opacity: 0;
    transition: all 0.3s;
    z-index: 100;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

/* Sub-tabs for tools with multiple modes */
.sub-tab-group {
    display: flex;
    overflow-x: auto;
    gap: 10px;
    margin-bottom: 15px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 10px;
    flex-shrink: 0;
    align-items: center;
}

.sub-tab {
    padding: 5px 15px;
    cursor: pointer;
    opacity: 0.6;
    transition: all 0.2s;
    border-radius: 4px;
    white-space: nowrap;
    flex-shrink: 0;
}

.sub-tab.active {
    opacity: 1;
    background: var(--primary);
    color: var(--primary-contrast, #fff);
    font-weight: bold;
}

.preview-chars {
    margin-top: 5px;
    font-size: 0.8rem;
    color: var(--text-dim);
    word-break: break-all;
}

.diff-container {
    display: flex;
    gap: 1rem;
    flex: 1;
    min-height: 0;
}
@media (max-width: 768px) {
    .diff-container {
        flex-direction: column;
        flex: none;
        height: 400px;
    }
}

/* Diff Styles */
ins {
    background: rgba(46, 160, 67, 0.3);
    color: var(--text-main);
    text-decoration: none;
    padding: 0 2px;
    border: 1px solid rgba(63, 185, 80, 0.5);
    border-radius: 2px;
}
del {
    background: rgba(248, 81, 73, 0.3);
    color: var(--text-main);
    text-decoration: line-through;
    padding: 0 2px;
    border: 1px solid rgba(248, 81, 73, 0.5);
    border-radius: 2px;
    opacity: 0.9;
}

/* Common Tool Layouts */
.controls {
    background: var(--bg-panel);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    width: 100%;
    max-width: 350px;
    border: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    height: fit-content;
    overflow-y: auto;
    flex-shrink: 0;
}

.controls.wide {
    max-width: none;
}

.preview-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: rgba(0,0,0,0.2);
    border-radius: var(--radius-lg);
    position: relative;
    overflow: hidden;
    padding: 1rem;
    border: 1px solid var(--border);
}

.control-group, .filter-group {
    margin-bottom: 1.5rem;
    width: 100%;
    background: rgba(255,255,255,0.03);
    padding: 10px;
    border-radius: var(--radius-md);
}

.control-group label, .filter-title {
    display: flex;
    align-items: center;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-dim);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.control-group label i {
    margin-right: 0.5rem;
    color: var(--primary);
}

.upload-area {
    border: 2px dashed var(--border);
    border-radius: var(--radius-md);
    padding: 2rem;
    text-align: center;
    background: rgba(0, 0, 0, 0.2);
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative; /* Added for compatibility */
}

.upload-area:hover {
    border-color: var(--primary);
    background: rgba(192, 132, 252, 0.1);
}

.upload-area i {
    font-size: 2rem; 
    margin-bottom: 0.5rem; 
    color: var(--text-dim);
}

.btn-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
}

.canvas-responsive {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    display: block;
}

/* Transparency Checkerboard */
.bg-checkerboard {
    background-color: #eee;
    background-image: 
        linear-gradient(45deg, #ccc 25%, transparent 25%), 
        linear-gradient(-45deg, #ccc 25%, transparent 25%), 
        linear-gradient(45deg, transparent 75%, #ccc 75%), 
        linear-gradient(-45deg, transparent 75%, #ccc 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
}

/* Sidebar Grid Layout */
.layout-sidebar {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: 20px;
    height: auto;
    overflow: visible;
    padding: 1rem;
}

@media (max-width: 768px) {
    .layout-sidebar {
        grid-template-columns: 1fr;
        overflow: visible;
    }
}

/* Upload Zone with Preview (Phantom/Hybrid style) */
.upload-zone-preview {
    min-height: 120px;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}
.upload-zone-preview img {
    max-width: 100%;
    max-height: 120px;
    object-fit: contain;
    border-radius: 4px;
}

/* Success Button Variant */
.btn-success {
    background: linear-gradient(135deg, var(--secondary), #22c55e);
    color: var(--bg-deep);
}
.btn-success:hover {
    filter: brightness(1.1);
}

/* Nav Pills (image-fun, image-visual) */
.nav-pills {
    display: flex;
    justify-content: center;
    gap: 15px;
    padding: 15px;
    background: rgba(0,0,0,0.2);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.nav-pill {
    padding: 8px 20px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 20px;
    color: var(--text-dim);
    cursor: pointer;
    transition: all 0.3s;
    font-size: 0.95rem;
}

.nav-pill.active {
    background: var(--primary);
    color: var(--primary-contrast, #ffffff);
    border-color: var(--primary);
    box-shadow: 0 0 15px var(--shadow);
}

.nav-pill:hover:not(.active) {
    border-color: var(--primary);
    color: var(--text-main);
}

/* Form Elements */
.input-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}
.input-row label {
    min-width: 80px;
    color: var(--text-dim);
}

/* File Upload Button */
.file-upload {
    position: relative;
    overflow: hidden;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.file-upload input[type="file"] {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

/* Layout: Split View (Equal Columns) */
.layout-split {
    display: flex;
    gap: 20px;
    flex: 1;
    min-height: auto;
}
@media (max-width: 768px) {
    .layout-split {
        flex-direction: column;
        height: auto;
    }
}

/* Layout: Vertical Stack */
.layout-vertical {
    display: flex;
    flex-direction: column;
    height: auto;
    overflow: visible;
}

/* Text Tool Stats Row */
.stats-row {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    padding: 0.5rem 0.2rem;
    font-size: 0.8rem;
    color: var(--text-dim);
    border-top: 1px solid var(--border);
    margin-top: 0.5rem;
}
.stats-row span {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}
.stats-row b {
    color: var(--primary);
}

/* Tag Cloud / Chips */
.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
}
.tag-item {
    background: rgba(255,255,255,0.05);
    padding: 2px 6px;
    border-radius: 4px;
    cursor: pointer;
    transition: 0.2s;
    border: 1px solid transparent;
    font-size: 0.75rem;
    color: var(--text-dim);
}
.tag-item:hover {
    border-color: var(--primary);
    color: var(--text-main);
    background: rgba(139, 92, 246, 0.1);
}

/* Output Box / Log View */
.output-box {
    min-height: 100px;
    max-height: none;
    overflow: visible;
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: rgba(0,0,0,0.2);
    white-space: pre-wrap;
    word-break: break-all;
    color: var(--text-dim);
}

/* Match Highlight */
.match-highlight {
    background: rgba(139, 92, 246, 0.3);
    color: white;
    border-radius: 2px;
    box-shadow: 0 0 2px rgba(139, 92, 246, 0.5);
}

/* Diff Tool Styles */
.legend-badge {
    padding: 2px 4px; 
    border-radius: 2px; 
    color: #fff;
    font-size: 0.75rem;
}
.legend-badge.ins { background: rgba(46, 160, 67, 0.4); }
.legend-badge.del { background: rgba(200, 50, 50, 0.5); }

/* JSON Diff Patch Overrides */
.jsondiffpatch-delta {
    font-family: var(--font-mono) !important;
    font-size: 0.9rem !important;
    background: transparent !important;
    color: var(--text-main) !important;
    padding: 0 !important;
    margin: 0 !important;
}
.jsondiffpatch-unchanged {
    background-color: transparent !important;
    color: var(--text-dim) !important;
}
.jsondiffpatch-delta pre {
    font-family: inherit !important;
    background: transparent !important;
}
.jsondiffpatch-node {
    background-color: transparent !important;
    color: var(--text-main) !important;
}
.jsondiffpatch-property-name { color: var(--secondary) !important; }
.jsondiffpatch-value { color: #a5d6ff !important; }
.jsondiffpatch-string { color: #a5d6ff !important; }
.jsondiffpatch-number { color: #79c0ff !important; }
.jsondiffpatch-boolean, .jsondiffpatch-null, .jsondiffpatch-undefined { color: var(--accent) !important; }

.jsondiffpatch-added .jsondiffpatch-property-name, 
.jsondiffpatch-added .jsondiffpatch-value {
    background: rgba(46, 160, 67, 0.3) !important;
    color: #e6ffec !important;
    border-radius: 2px;
}
.jsondiffpatch-deleted .jsondiffpatch-property-name, 
.jsondiffpatch-deleted .jsondiffpatch-value {
    background: rgba(200, 50, 50, 0.4) !important;
    color: #ffdcd7 !important;
    text-decoration: line-through;
    border-radius: 2px;
}
.jsondiffpatch-modified .jsondiffpatch-left-value {
    background: rgba(200, 50, 50, 0.4) !important;
    color: #ffdcd7 !important;
    text-decoration: line-through;
    border-radius: 2px;
    margin-right: 5px;
    display: inline-block;
}
.jsondiffpatch-modified .jsondiffpatch-right-value {
    background: rgba(46, 160, 67, 0.3) !important;
    color: #e6ffec !important;
    border-radius: 2px;
    display: inline-block;
}
.jsondiffpatch-arrow { color: var(--text-dim) !important; }
.jsondiffpatch-item {
    border-left: 1px solid var(--border);
    padding-left: 10px;
}

/* Home Page Styles */
.home-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    text-align: center;
    padding: 2rem;
    color: var(--text-main);
}
.hero-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 2px;
}
.hero-desc {
    font-size: 1.2rem;
    color: var(--text-dim);
    max-width: 600px;
    margin-bottom: 2rem;
    line-height: 1.6;
}
.action-buttons {
    display: flex;
    gap: 15px;
    margin-bottom: 3rem;
}
.btn-action {
    padding: 10px 25px;
    border-radius: 50px;
    border: none;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1rem;
}
.btn-outline {
    background: transparent;
    border: 2px solid var(--border);
    color: var(--text-main);
}
.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
    box-shadow: 0 0 15px rgba(139, 92, 246, 0.2);
}
.btn-purple {
    background: linear-gradient(135deg, #8b5cf6, #c084fc);
    color: white;
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.4);
}
.btn-purple:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(139, 92, 246, 0.6);
}
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    width: 100%;
    max-width: 1000px;
}
.feature-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    transition: transform 0.3s, background 0.3s;
    cursor: pointer;
    text-align: left;
}
.feature-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--secondary);
}
.feature-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
    display: block;
}
.feature-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 0.5rem;
}
.feature-text {
    font-size: 0.9rem;
    color: var(--text-dim);
}

/* File Encoding Tool Styles */
.status-badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    background: rgba(255,255,255,0.1);
    color: var(--text-dim);
    transition: all 0.3s ease;
}
.status-badge.loading {
    background: var(--secondary);
    color: var(--bg-deep);
    animation: pulse 1.5s infinite;
}
.status-badge.ready {
    background: #10b981;
    color: #fff;
}
.status-badge.error {
    background: var(--accent);
    color: #fff;
}
@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.6; }
    100% { opacity: 1; }
}

.file-list-widget {
    margin-top: 1rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: rgba(0,0,0,0.2);
    max-height: none;
    overflow: visible;
    display: none;
}
.file-list-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 12px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    font-size: 0.9rem;
    transition: background 0.2s;
}
.file-list-item:last-child {
    border-bottom: none;
}
.file-list-item:hover {
    background: rgba(255,255,255,0.05);
}
.file-info {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
.file-name {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-weight: 500;
}
.file-meta {
    font-size: 0.75rem;
    color: var(--text-dim);
}
.remove-btn {
    background: none;
    border: none;
    color: var(--text-dim);
    cursor: pointer;
    padding: 4px;
    margin-left: 10px;
    border-radius: 4px;
}
.remove-btn:hover {
    color: var(--accent);
    background: rgba(255,255,255,0.1);
}

.control-grid {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 1rem;
    margin-top: 1rem;
    align-items: center;
}
@media (max-width: 600px) {
    .control-grid {
        grid-template-columns: 1fr;
    }
}

/* Scroll Box Small (for Hash tool) */
.scroll-box-sm {
    overflow-y: auto; 
    flex-shrink: 0; 
    max-height: 100px;
}

/* Results List (Hash tool) */
.results-list {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}