*, *::before, *::after {
    box-sizing: border-box;
}
:root {
    --color-black: #000;
    --color-white: #fff;
    --color-light-gray-bg: #E5E5E7;
    --color-medium-gray-bg: #AEB1B3;
    --color-dark-gray: #333;
    --color-border-gray: #d0d0d0;
    --color-text-light: #666;
    --color-text-dark: #000;
    --color-transparent-white-dark: rgba(255,255,255,0.9);
    --color-transparent-white-medium: rgba(255,255,255,0.8);
    --color-transparent-black-light: rgba(0,0,0,0.05);
    --color-transparent-black-medium: rgba(0,0,0,0.1);
    --color-transparent-black-dark: rgba(0,0,0,0.15);
    --color-transparent-black-darker: rgba(0,0,0,0.2);
    --color-dgtlOS-blue: #007AFF;
    --color-dgtlOS-dark-blue: #0056B3;
    --color-dgtlOS-red: #ff5f57;
    --color-dgtlOS-yellow: #ffbd2e;
    --color-dgtlOS-green: #28ca42;
    --color-terminal-green: #00ff00;
    --color-battery-medium: #ddd;

    --font-family-system: -dgtlOS-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-family-terminal: 'Courier New', monospace;
    --font-family-notepad: 'Monaco', monospace;

    --font-size-body: 14px;
    --font-size-xs: 11px;
    --font-size-sm: 12px;
    --font-size-md: 13px;
    --font-size-lg: 14px;
    --font-size-xl: 16px;
    --font-size-xxl: 20px;
    --font-size-music-title: 18px;
    --font-size-music-artist: 15px;
    --font-size-music-control: 18px;

    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 10px;
    --spacing-lg: 12px;
    --spacing-xl: 16px;
    --spacing-xxl: 20px;
    --spacing-xxxl: 30px;

    --border-radius-xs: 2px;
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --border-radius-dock: 15px;

    --menu-bar-height: 24px;
    --window-header-height: 32px;
    --finder-toolbar-height: 40px;
    --notepad-toolbar-height: 40px;

    --z-index-desktop-icons: 5;
    --z-index-menu-bar: 10;
    --z-index-dock: 20;
    --z-index-notification: 90;
    --z-index-context-menu: 100;
    --z-index-window-base: 200;
    --z-index-screensaver: 500;
    --z-index-fireworks: 1000;
}

body {
    margin: 0;
    padding: 0;
    background: var(--color-black);
    color: var(--color-white);
    font-family: var(--font-family-system);
    font-size: var(--font-size-body);
    overflow: hidden;
}

body[data-theme='dark'] {
  --color-light-gray-bg: #1a1a1a;
  --color-medium-gray-bg: #121212;
  --color-text-dark: #fff;
  --color-transparent-white-medium: rgba(255,255,255,0.05);
  backdrop-filter: blur(25px);
}

*:focus-visible {
    outline: 2px solid var(--color-dgtlOS-blue);
    outline-offset: 2px;
}
input[type="range"]:focus-visible::-webkit-slider-thumb,
input[type="range"]:focus-visible::-moz-range-thumb {
    box-shadow: 0 0 0 4px rgba(0, 122, 255, 0.4);
}

/* --- Boot Screen --- */
#boot-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-black);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: var(--z-index-fireworks);
}
#dgtlOS-logo {
    width: 80px;
    height: 80px;
    animation: pulse 1s infinite;
    margin-bottom: var(--spacing-xxl);
}
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}
#progress-bar {
    width: 300px;
    height: var(--spacing-xs);
    background: var(--color-dark-gray);
    border-radius: var(--border-radius-xs);
    overflow: hidden;
}
#progress-fill {
    height: 100%;
    background: linear-gradient(to right, var(--color-dgtlOS-blue), var(--color-dgtlOS-dark-blue));
    width: 0%;
    transition: width 0.3s ease;
}
#boot-text {
    margin-top: var(--spacing-xxl);
    text-align: center;
    opacity: 0.8;
}

/* --- Desktop --- */
#desktop {
    display: none;
    height: 100vh;
    background: linear-gradient(to bottom, var(--color-light-gray-bg), var(--color-medium-gray-bg));
    background-size: cover;
    background-position: center;
    position: relative;
    cursor: default;
    color: var(--color-text-dark);
}

/* --- Desktop Icons --- */
#desktop-icons {
    position: absolute;
    top: var(--menu-bar-height);
    left: 0;
    width: 100%;
    height: calc(100% - var(--menu-bar-height) - 100px);
    padding: var(--spacing-lg);
}
#desktop-icons .icon {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center; /* Center content vertically */
    text-align: center;
    white-space: normal;     /* Allow text to wrap */
    word-break: break-word;  /* Break long words if necessary */
    cursor: grab;
    user-select: none;
    z-index: var(--z-index-desktop-icons);
    color: var(--color-text-dark);
    text-shadow: 0 1px 1px rgba(255,255,255,0.4);
    box-sizing: border-box;  /* Ensure padding is included in width/height calculation */
    padding: var(--spacing-xs); /* Small padding inside the icon area */
    transition: width 0.1s ease, height 0.1s ease, font-size 0.1s ease, transform 0.2s; /* Smooth transitions for size changes */
}
#desktop-icons .icon:active {
    cursor: grabbing; /* Cursor when mousedown, before drag threshold */
}
#desktop-icons .icon-img {
    display: block;
    object-fit: contain;
    margin-bottom: var(--spacing-xs); /* Space between image and text */
    transition: width 0.1s ease, height 0.1s ease; /* Smooth transitions for image size */
}
#desktop-icons.small-icons .icon {
    width: 70px;   /* Smaller total icon area */
    height: 85px;
    font-size: 0.7em; /* Smaller text */
    line-height: 1.2;
}
#desktop-icons.small-icons .icon-img {
    width: 36px;   /* Smaller image size */
    height: 36px;
}

/* Medium Icons (Default) */
#desktop-icons.medium-icons .icon {
    width: 90px;  /* Intermediate total icon area */
    height: 105px;
    font-size: 0.85em; /* Default text size */
    line-height: 1.3;
}
#desktop-icons.medium-icons .icon-img {
    width: 50px;   /* Intermediate image size */
    height: 50px;
}

/* Large Icons */
#desktop-icons.large-icons .icon {
    width: 110px;  /* Largest total icon area */
    height: 125px;
    font-size: 1em; /* Larger text */
    line-height: 1.4;
}
#desktop-icons.large-icons .icon-img {
    width: 64px;   /* Largest image size */
    height: 64px;
}

.folder-preview {
    position: fixed;
    background: var(--color-transparent-white-medium);
    backdrop-filter: blur(15px);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-md);
    box-shadow: 0 8px 32px var(--color-transparent-black-darker);
    z-index: var(--z-index-window-base) + 10;
    opacity: 0;
    transform: scale(0.95) translateY(10px);
    transition: opacity 0.2s ease-out, transform 0.2s ease-out;
    pointer-events: none;
    max-width: 250px;
    max-height: 200px;
    overflow: hidden;
    display: none;
}

.folder-preview.show {
    display: block;
    opacity: 1;
    transform: scale(1) translateY(0);
}

.folder-preview-header {
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-dark);
    border-bottom: 1px solid var(--color-border-gray);
    padding-bottom: var(--spacing-xs);
}

.folder-preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
    gap: var(--spacing-xs);
    overflow-y: auto;
}

.folder-preview-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--border-radius-sm);
    transition: background 0.1s;
}

.folder-preview-item:hover {
    background: var(--color-transparent-black-light);
}

.folder-preview-item img,
.folder-preview-item::before {
    width: 32px;
    height: 32px;
    margin-bottom: var(--spacing-xs);
    border-radius: var(--border-radius-xs);
    object-fit: cover;
}

.folder-preview-item-name {
    font-size: var(--font-size-xs);
    text-align: center;
    color: var(--color-text-dark);
    word-break: break-word;
}

/* --- Dock --- */
#dock {
    position: fixed;
    bottom: var(--spacing-xxl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    background: var(--color-transparent-white-medium);
    backdrop-filter: blur(20px);
    border-radius: var(--border-radius-dock);
    padding: var(--spacing-sm);
    gap: var(--spacing-md);
    z-index: var(--z-index-dock);
    transition: transform 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94); /* Added transition for hover */
    will-change: transform; /* Hint to browser for animation */
}
.dock-icon {
    width: 60px;
    height: 60px;
    background: var(--color-white);
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.2s;
    position: relative;
    transition: transform 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94), box-shadow 0.3s ease-out;
    will-change: transform;
}
.dock-icon:hover {
    transform: scale(1.4);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2), 0 0 0 4px rgba(0, 122, 255, 0.1);
    z-index: 25;
}
.dock-icon:active,
.dock-icon:focus-visible {
    animation: dockBounce 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    transform: scale(1.1);
}

@keyframes dockBounce {
    0% {
        transform: scale(1.1) translateY(0);
    }
    50% {
        transform: scale(1.3) translateY(-8px);
    }
    100% {
        transform: scale(1) translateY(0);
    }
}

.dock-img {
    width: 32px;
    height: 32px;
    transition: filter 0.3s ease;
    filter: brightness(1);
}
.dock-icon:hover .dock-img {
    filter: brightness(1.15) drop-shadow(0 2px 4px rgba(0, 0, 0, 0.15));
}
.dock-dot {
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: var(--spacing-sm);
    height: var(--spacing-sm);
    background: var(--color-dgtlOS-blue);
    border-radius: 50%;
    display: none;
    animation: dotPulse 1s ease-in-out infinite;
}

@keyframes dotPulse {
    0%, 100% {
        transform: translateX(-50%) scale(1);
    }
    50% {
        transform: translateX(-50%) scale(1.2);
    }
}

.dock-dot.active {
    display: block;
}

/* --- Menu Bar --- */
#menu-bar {
    position: fixed;
    top: 0;
    width: 100%;
    height: var(--menu-bar-height);
    background: var(--color-transparent-white-medium);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    padding: 0 var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-dark);
    z-index: var(--z-index-menu-bar);
    user-select: none;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}
#left-menu {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}
#dgtlOS-menu {
    cursor: pointer;
    margin-right: var(--spacing-md);
    font-weight: 600;
    padding: 0 var(--spacing-xs);
}
#main-menu-items {
    display: flex;
    gap: var(--spacing-xxl);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    padding: 0 var(--spacing-xs);
}
#main-menu-items .menu-item-text {
    cursor: pointer;
    padding: 0 var(--spacing-xs);
}
#main-menu-items .menu-item-text:hover,
#main-menu-items .menu-item-text.active {
    background: rgba(0,0,0,0.1);
    border-radius: var(--border-radius-xs);
}
#right-menu {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-shrink: 0;
}
#wifi-icon {
    font-size: var(--font-size-md);
    margin-right: var(--spacing-xs);
    opacity: 0.8;
}
#date-time {
    font-size: var(--font-size-xs);
    opacity: 0.8;
    padding: 0 var(--spacing-xs);
}
#battery {
    font-size: var(--font-size-xs);
    opacity: 0.8;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0 var(--spacing-xs);
}
#user-name-display {
    font-size: var(--font-size-xs);
    opacity: 0.8;
    cursor: pointer;
    padding: 0 var(--spacing-xs);
}
#user-name-display:hover {
    background: rgba(0,0,0,0.1);
    border-radius: var(--border-radius-xs);
}
.battery-bar {
    width: var(--spacing-xxl);
    height: var(--spacing-sm);
    border: 1px solid var(--color-text-dark);
    border-radius: var(--border-radius-xs);
    overflow: hidden;
    background: var(--color-battery-medium);
}
.battery-fill {
    height: 100%;
    background: var(--color-dgtlOS-blue);
    transition: width 0.3s ease;
}
.charging {
    color: var(--color-dgtlOS-blue);
}

/* --- Context & Dropdown Menus --- */
#context-menu,
#dropdown-menu-container .dropdown-menu {
    position: fixed;
    background: var(--color-transparent-white-dark);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-sm) 0;
    box-shadow: 0 4px 12px var(--color-transparent-black-dark);
    z-index: var(--z-index-context-menu);
    display: none;
    min-width: 150px;
    color: var(--color-text-dark);
}
.menu-item {
    padding: var(--spacing-sm) var(--spacing-xl);
    cursor: pointer;
    font-size: var(--font-size-md);
}
.menu-item:hover {
    background: var(--color-transparent-black-medium);
}
.menu-item.separator {
    height: 1px;
    background: var(--color-border-gray);
    margin: var(--spacing-sm) 0;
    padding: 0;
}
.menu-item.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ===== THEMES ===== */

/* Light (default) */
body[data-theme='light'] {
    --color-light-gray-bg: #F5F5F7; /* Brighter light bg */
    --color-medium-gray-bg: #E5E5E7;
    --color-text-dark: #000;
    --color-transparent-white-medium: rgba(255,255,255,0.95);
    --color-transparent-black-light: rgba(0,0,0,0.02);
}

body[data-theme='dark'] {
    --color-light-gray-bg: #1a1a1a;
    --color-medium-gray-bg: #121212;
    --color-text-dark: #fff;
    --color-transparent-white-medium: rgba(255,255,255,0.1);
    --color-transparent-black-light: rgba(255,255,255,0.05);
    --color-border-gray: #444;
    backdrop-filter: blur(25px); /* Soften dark mode */
}

body[data-theme='glass'] {
    --color-light-gray-bg: rgba(255,255,255,0.1);
    --color-medium-gray-bg: rgba(255,255,255,0.05);
    --color-text-dark: #000;
    --color-transparent-white-medium: rgba(255,255,255,0.8);
    --color-transparent-black-light: rgba(0,0,0,0.01);
    --color-border-gray: rgba(255,255,255,0.2);
    backdrop-filter: blur(30px); /* Frosted glass effect */
    /* Apply glass to key elements */
}
body[data-theme='glass'] #desktop {
    background: linear-gradient(to bottom, rgba(255,255,255,0.15), rgba(255,255,255,0.05));
    border: 1px solid rgba(255,255,255,0.2);
}
body[data-theme='glass'] .window,
body[data-theme='glass'] .notification-item,
body[data-theme='glass'] #menu-bar {
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.2);
}
body[data-theme='glass'] #desktop-icons .icon {
    background: rgba(255,255,255,0.05);
    border-radius: var(--border-radius-sm);
    backdrop-filter: blur(10px);
}

/* --- Windows --- */
.window {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 400px;
    height: 300px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(25px) saturate(160%);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    display: none;
    z-index: var(--z-index-window-base);
    overflow: hidden;
    color: var(--color-text-dark);
    resize: both;
    min-width: 250px;
    min-height: 150px;
}
.window-no-resize {
    resize: none;
}
.window-header {
    height: var(--window-header-height);
    background: linear-gradient(to right, #f0f0f0, #e0e0e0);
    display: flex;
    align-items: center;
    padding: 0 var(--spacing-lg);
    justify-content: space-between;
    cursor: grab;
    user-select: none;
    border-top-left-radius: var(--border-radius-lg);
    border-top-right-radius: var(--border-radius-lg);
    flex-shrink: 0;
}
.window-header:active {
    cursor: grabbing;
}
.window-controls {
    display: flex;
    gap: var(--spacing-sm);
}
.control-btn {
    width: var(--spacing-lg);
    height: var(--spacing-lg);
    border-radius: 50%;
    cursor: pointer;
    border: 1px solid transparent;
}
.control-btn.close { background: var(--color-dgtlOS-red); }
.control-btn.minimize { background: var(--color-dgtlOS-yellow); }
.control-btn.maximize { background: var(--color-dgtlOS-green); }
.window-title {
    font-size: var(--font-size-md);
    font-weight: 500;
}
.window-content {
    height: calc(100% - var(--window-header-height));
    padding: var(--spacing-xl);
    overflow-y: auto;
    color: var(--color-text-dark);
    font-size: var(--font-size-md);
}

/* --- Terminal --- */
.terminal-container {
    height: 100%;
    background: var(--color-black);
    color: var(--color-terminal-green);
    font-family: var(--font-family-terminal);
    font-size: var(--font-size-lg);
    padding: var(--spacing-md);
    overflow: auto;
    display: flex;
    flex-direction: column;
    white-space: pre-wrap;
    word-wrap: break-word;
}
.terminal-output {
    flex: 1;
    overflow-y: auto;
}
.terminal-input-line {
    display: flex;
    align-items: center;
    flex-shrink: 0;
    margin-top: var(--spacing-xs);
}
.terminal-prompt {
    color: var(--color-white);
    margin-right: var(--spacing-xs);
}
.terminal-input {
    background: transparent;
    color: var(--color-terminal-green);
    border: none;
    font-family: inherit;
    font-size: inherit;
    outline: none;
    flex: 1;
    caret-color: var(--color-terminal-green);
}

/* --- Finder --- */
.finder-toolbar {
    height: var(--finder-toolbar-height);
    border-bottom: 1px solid var(--color-border-gray);
    display: flex;
    align-items: center;
    padding: 0 var(--spacing-lg);
    background: #f8f9fa;
    flex-shrink: 0;
}
.finder-toolbar button {
    background: none;
    border: none;
    padding: var(--spacing-xs) var(--spacing-sm);
    margin-right: var(--spacing-sm);
    cursor: pointer;
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-md);
    color: var(--color-text-dark);
}
.finder-toolbar button:hover {
    background: var(--color-transparent-black-medium);
}
.finder-toolbar input[type="text"] {
    background: var(--color-white);
    border: 1px solid #ccc;
    border-radius: var(--border-radius-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-md);
    flex: 1;
    margin: 0 var(--spacing-lg);
}
.finder-view {
    height: calc(100% - var(--finder-toolbar-height));
    display: flex;
    flex-direction: column;
}
.file-list {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-sm);
}
.file-item {
    display: flex;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-sm);
    cursor: pointer;
    border-radius: var(--border-radius-sm);
    margin-bottom: 2px;
}
.file-item:hover {
    background: var(--color-transparent-black-light);
}
.file-icon {
    width: var(--font-size-xl);
    height: var(--font-size-xl);
    margin-right: var(--spacing-lg);
    font-size: var(--font-size-xl);
    text-align: center;
    line-height: var(--font-size-xl);
}
.file-name {
    flex: 1;
    font-size: var(--font-size-md);
}
.file-size {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

/* --- TextEdit (Notepad) --- */
.notepad-toolbar {
    display: flex;
    justify-content: flex-end;
    padding: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border-gray);
    gap: var(--spacing-sm);
    flex-shrink: 0;
    background: #f8f9fa;
}
.notepad-btn {
    background: var(--color-dgtlOS-blue);
    color: var(--color-white);
    border: none;
    padding: var(--spacing-xs) var(--spacing-lg);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: var(--font-size-sm);
}
.notepad-btn:hover {
    background: var(--color-dgtlOS-dark-blue);
}
textarea.notepad-content {
    height: calc(100% - var(--notepad-toolbar-height));
    width: 100%;
    border: none;
    resize: none;
    font-family: var(--font-family-notepad);
    font-size: var(--font-size-md);
    padding: var(--spacing-xl);
    background: var(--color-white);
    color: var(--color-text-dark);
    outline: none;
}

/* --- Volume Mixer --- */
.volume-mixer {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    padding: var(--spacing-xl) 0;
}
.volume-slider {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}
.volume-label {
    font-size: var(--font-size-md);
    min-width: 80px;
}
.volume-range {
    flex: 1;
    height: var(--spacing-xs);
    border-radius: var(--border-radius-xs);
    background: var(--color-battery-medium);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}
.volume-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: var(--spacing-xl);
    height: var(--spacing-xl);
    border-radius: 50%;
    background: var(--color-dgtlOS-blue);
    cursor: pointer;
    margin-top: calc(var(--spacing-xl) / -2 + var(--spacing-xs) / 2);
    transition: box-shadow 0.2s ease;
}
.volume-range::-moz-range-thumb {
    width: var(--spacing-xl);
    height: var(--spacing-xl);
    border-radius: 50%;
    background: var(--color-dgtlOS-blue);
    cursor: pointer;
}
.volume-icon {
    font-size: var(--font-size-xxl);
}

/* --- Music Player --- */
.music-player {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xl);
    padding: var(--spacing-md);
    text-align: center;
    width: 100%;
}
.album-art {
    width: 150px;
    height: 150px;
    background-size: cover;
    background-position: center;
    border-radius: var(--border-radius-md);
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    background-color: #ccc;
}
.song-info h3 {
    margin: var(--spacing-xs) 0 0;
    font-size: var(--font-size-music-title);
    color: var(--color-text-dark);
}
.song-info p {
    margin: 0;
    font-size: var(--font-size-music-artist);
    color: var(--color-text-light);
}
.playback-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    width: 100%;
    max-width: 300px;
}
.playback-controls .control-button {
    background: var(--color-dgtlOS-blue);
    color: var(--color-white);
    border: none;
    border-radius: 50%;
    width: var(--spacing-xxxl);
    height: var(--spacing-xxxl);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: var(--font-size-music-control);
    flex-shrink: 0;
    line-height: 1;
    padding: 0;
}
.playback-controls .control-button:hover {
    background: var(--color-dgtlOS-dark-blue);
}
.playback-controls .play-pause-btn {
    width: calc(var(--spacing-xxxl) + 6px);
    height: calc(var(--spacing-xxxl) + 6px);
    font-size: calc(var(--font-size-music-control) + 2px);
}
.progress-bar-container {
    width: 100%;
    max-width: 300px;
    height: var(--spacing-xs);
    background: var(--color-battery-medium);
    border-radius: var(--border-radius-xs);
    overflow: hidden;
    position: relative;
    cursor: pointer;
}
.progress-fill {
    height: 100%;
    background: var(--color-dgtlOS-blue);
    width: 0%;
}
.volume-control {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    width: 100%;
    max-width: 250px;
}
.volume-control input[type="range"]::-webkit-slider-thumb,
.volume-control input[type="range"]::-moz-range-thumb {
    width: var(--spacing-md);
    height: var(--spacing-md);
    border-radius: 50%;
    background: var(--color-dgtlOS-blue);
    cursor: pointer;
    margin-top: calc(var(--spacing-md) / -2 + var(--spacing-xs) / 2);
}

/* --- Trash --- */
.trash-container {
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 0;
}
.trash-toolbar {
    display: flex;
    justify-content: flex-end;
    padding: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border-gray);
    gap: var(--spacing-sm);
    flex-shrink: 0;
    background: #f8f9fa;
}
.trash-list {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-sm);
}
.trash-item {
    display: flex;
    align-items: center;
    padding: var(--spacing-sm);
    cursor: pointer;
    border-radius: var(--border-radius-sm);
    margin-bottom: 2px;
    background: var(--color-white);
    border: 1px solid var(--color-border-gray);
}
.trash-item:hover {
    background: #f0f0f0;
}
.trash-item-icon {
    width: var(--spacing-xl);
    height: var(--spacing-xl);
    margin-right: var(--spacing-lg);
    font-size: var(--spacing-xl);
    text-align: center;
    line-height: var(--spacing-xl);
}
.trash-item-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}
.trash-item-name {
    flex: 1;
    font-size: var(--font-size-md);
    color: var(--color-text-dark);
}
.empty-trash-btn {
    background: #e74c3c;
    color: white;
    border: none;
    padding: var(--spacing-xs) var(--spacing-lg);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: var(--font-size-sm);
}
.empty-trash-btn:hover {
    background: #c0392b;
}

/* --- Calculator --- */
.calculator-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-gap: var(--spacing-xs);
    height: 100%;
    padding: var(--spacing-md);
}
.calculator-display {
    grid-column: 1 / -1;
    background: #222;
    color: var(--color-white);
    font-family: var(--font-family-system);
    font-size: 2em;
    text-align: right;
    padding: var(--spacing-md);
    border-radius: var(--border-radius-sm);
    margin-bottom: var(--spacing-xs);
    overflow: hidden;
    white-space: nowrap;
}
.calculator-button {
    background: #e0e0e0;
    border: none;
    border-radius: var(--border-radius-sm);
    font-size: 1.2em;
    color: var(--color-text-dark);
    padding: var(--spacing-md);
    cursor: pointer;
    transition: background 0.1s;
}
.calculator-button:hover {
    background: #d0d0d0;
}
.calculator-button.operator {
    background: #f0932b;
    color: var(--color-white);
}
.calculator-button.operator:hover {
    background: #d37c22;
}
.calculator-button.equals {
    background: var(--color-dgtlOS-blue);
    color: var(--color-white);
    grid-column: span 2;
}
.calculator-button.equals:hover {
    background: var(--color-dgtlOS-dark-blue);
}
.calculator-button.clear {
    background: #eb4d4b;
    color: var(--color-white);
}
.calculator-button.clear:hover {
    background: #c23616;
}

/* --- Safari --- */
.safari-browser {
    display: flex;
    flex-direction: column;
    height: 100%;
}
.safari-toolbar {
    display: flex;
    align-items: center;
    padding: var(--spacing-sm);
    background: #f8f9fa;
    border-bottom: 1px solid var(--color-border-gray);
    flex-shrink: 0;
    gap: var(--spacing-sm);
}
.safari-toolbar input[type="text"] {
    flex: 1;
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid #ccc;
    border-radius: 15px;
    font-size: var(--font-size-md);
    outline: none;
}
.safari-toolbar button {
    background: var(--color-apple-blue);
    color: var(--color-white);
    border: none;
    padding: var(--spacing-xs) var(--spacing-lg);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: var(--font-size-sm);
    flex-shrink: 0;
}
.safari-toolbar button:hover {
    background: var(--color-apple-dark-blue);
}

/* NEW Safari Content Area & View Toggle */
.safari-content-area {
    flex: 1;
    display: flex; /* Use flex to manage active/hidden views */
    overflow: hidden;
    position: relative; /* For absolute positioning of views if needed, though hidden/active handles it */
}

.active-view {
    display: block;
    flex: 1; /* Take up full space */
    overflow: hidden; /* Manage its own scroll */
}

.hidden-view {
    display: none;
}

.safari-iframe-container {
    width: 100%;
    height: 100%;
    overflow: hidden;
}
.safari-iframe {
    width: 100%;
    height: 100%;
    border: none;
    background: var(--color-white);
}

#serpapi-mode-view {
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 100%;
    background: #f0f2f5; /* Light grey background for search results */
    color: var(--color-text-dark);
}
.serpapi-search-input-area {
    display: flex;
    padding: var(--spacing-md);
    border-bottom: 1px solid #ddd;
    gap: var(--spacing-sm);
    flex-shrink: 0;
    background: #f8f9fa;
}
#serpapi-query-input {
    flex: 1;
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid #ccc;
    border-radius: 15px;
    font-size: var(--font-size-md);
    outline: none;
}
#serpapi-search-btn {
    background: var(--color-apple-blue);
    color: var(--color-white);
    border: none;
    padding: var(--spacing-xs) var(--spacing-lg);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: var(--font-size-sm);
    flex-shrink: 0;
}
#serpapi-search-btn:hover {
    background: var(--color-apple-dark-blue);
}

.serpapi-results-container {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-xl);
    line-height: 1.5;
}
.serpapi-results-container h4 {
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-sm);
    color: var(--color-apple-blue);
    border-bottom: 1px solid #eee;
    padding-bottom: var(--spacing-xs);
}
.serpapi-results-container h4:first-of-type {
    margin-top: 0;
}
.serpapi-knowledge-graph {
    background: var(--color-white);
    border: 1px solid #e0e0e0;
    border-radius: var(--border-radius-md);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xxl);
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}
.serpapi-knowledge-graph h4 {
    font-size: 1.5em;
    margin-top: 0;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-dark);
    border-bottom: none; /* Override general h4 border */
    padding-bottom: 0;
}
.serpapi-knowledge-graph img {
    max-width: 150px;
    height: auto;
    float: right;
    margin-left: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border-radius: var(--border-radius-sm);
}
.serpapi-knowledge-graph p.type {
    font-size: 0.9em;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}
.serpapi-knowledge-graph ul {
    list-style: none;
    padding-left: 0;
    margin-top: var(--spacing-md);
}
.serpapi-knowledge-graph ul li {
    margin-bottom: var(--spacing-xs);
}
.serpapi-organic-result {
    background: var(--color-white);
    border: 1px solid #e0e0e0;
    border-radius: var(--border-radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}
.serpapi-organic-result a {
    text-decoration: none;
    color: var(--color-apple-blue);
}
.serpapi-organic-result a h5 {
    margin: 0;
    font-size: 1.1em;
    color: var(--color-apple-blue);
}
.serpapi-organic-result a:hover h5 {
    text-decoration: underline;
}
.serpapi-link {
    font-size: 0.8em;
    color: var(--color-apple-green);
    margin-top: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
    word-break: break-all;
}
.serpapi-organic-result p {
    font-size: 0.9em;
    color: var(--color-text-dark);
    margin: 0;
}
.serpapi-placeholder {
    color: var(--color-text-light);
    text-align: center;
    margin-top: var(--spacing-xxxl);
}
.serpapi-security-warning {
    text-align: center;
    background-color: #ffe0e0;
    border: 1px solid red;
    padding: var(--spacing-sm);
    margin-top: var(--spacing-xl); /* Added margin-top */
    border-radius: var(--border-radius-sm);
    font-size: 0.9em;
    color: #cc0000;
}

/* --- Image Viewer --- */
.image-viewer {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
    background: #333;
}
.image-viewer img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: var(--border-radius-md);
}

/* --- About This Mac --- */
.about-mac {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-xxl);
    text-align: center;
}
.about-mac .logo {
    width: 100px;
    height: 100px;
    margin-bottom: var(--spacing-md);
}
.about-mac h2 {
    margin: 0;
    font-size: 1.8em;
    color: var(--color-text-dark);
}
.about-mac p {
    margin: 0;
    color: var(--color-text-light);
    font-size: var(--font-size-md);
}
.about-mac .specs-table {
    width: 100%;
    max-width: 300px;
    text-align: left;
    margin-top: var(--spacing-xl);
    border-collapse: collapse;
}
.about-mac .specs-table tr {
    border-bottom: 1px solid #eee;
}
.about-mac .specs-table tr:last-child {
    border-bottom: none;
}
.about-mac .specs-table td {
    padding: var(--spacing-sm) 0;
    font-size: var(--font-size-md);
    color: var(--color-text-dark);
}
.about-mac .specs-table td:first-child {
    font-weight: bold;
    min-width: 80px;
    color: var(--color-text-dark);
}
.about-mac .xai-link {
    margin-top: var(--spacing-xl);
    font-size: var(--font-size-sm);
    color: var(--color-dgtlOS-blue);
    text-decoration: none;
}
.about-mac .xai-link:hover {
    text-decoration: underline;
}

/* --- Gallery --- */
.gallery-app {
    display: flex;
    flex-direction: column;
    height: 100%;
}
.gallery-toolbar {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-border-gray);
}
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    overflow-y: auto;
    flex: 1;
}
.gallery-item {
    position: relative;
    cursor: pointer;
    border-radius: var(--border-radius-md);
    overflow: hidden;
}
.gallery-item-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0,0,0,0.7);
    color: white;
    padding: var(--spacing-sm);
    display: flex;
    justify-content: space-between;
    opacity: 0;
    transition: opacity 0.3s;
}
.gallery-item:hover .gallery-item-overlay {
    opacity: 1;
}
.gallery-item-name {
    font-size: 0.9em;
    flex: 1;
}
.gallery-btn {
    background: none;
    border: none;
    color: white;
    font-size: 1.2em;
    cursor: pointer;
    margin-left: var(--spacing-sm);
}
.gallery-btn:hover {
    color: var(--color-dgtlOS-blue);
}
.gallery-item img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius-md);
}

.calendar-app {
    padding: var(--spacing-xl);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    height: 100%;
    box-sizing: border-box;
}
.calendar-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    max-width: 320px;
    margin-bottom: var(--spacing-sm);
}
.calendar-nav-btn {
    background: var(--color-dgtlOS-blue);
    color: var(--color-white);
    border: none;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: var(--font-size-md);
}
.calendar-nav-btn:hover {
    background: var(--color-dgtlOS-dark-blue);
}
.calendar-header {
    font-size: 1.5em;
    font-weight: bold;
    color: var(--color-text-dark);
    margin: 0; /* Remove default margin */
}
#today-btn {
    background: #6c757d; /* A neutral color for 'Today' */
    color: var(--color-white);
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: var(--font-size-md);
    margin-bottom: var(--spacing-md); /* Space below the button */
}
#today-btn:hover {
    background: #5a6268;
}

.calendar-grid-display {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    width: 100%; /* Occupy full width of its parent */
    max-width: 320px; /* Adjust this to match your desired calendar width */
    background: #f0f0f0;
    border-radius: var(--border-radius-md);
    padding: var(--spacing-sm);
    box-shadow: inset 0 0 5px rgba(0,0,0,0.1);
    flex-grow: 1; /* Allow the grid to expand vertically */
    overflow-y: auto; /* In case the window is too small, allow scrolling */
}
.calendar-day-label,
.calendar-day-number {
    padding: var(--spacing-xs);
    font-size: var(--font-size-md);
    color: var(--color-text-dark);
    font-weight: 500;
    display: flex; /* Use flex for centering content */
    align-items: center;
    justify-content: center;
    aspect-ratio: 1 / 1; /* Make cells square */
}
.calendar-day-label {
    background: #e5e5e5;
    border-bottom: 1px solid #ddd;
    text-transform: uppercase;
    font-size: var(--font-size-sm);
}
.calendar-day-number {
    background: var(--color-white);
    border: 1px solid #eee;
    border-radius: var(--border-radius-xs);
    transition: background 0.1s;
}
.calendar-day-number:not(.inactive):hover {
    background: #e0e0e0;
    cursor: pointer;
}
.calendar-day-number.today {
    background: var(--color-dgtlOS-blue);
    color: var(--color-white);
    border-color: var(--color-dgtlOS-blue);
    font-weight: bold;
}
.calendar-day-number.inactive {
    color: var(--color-text-light);
    opacity: 0.6;
    pointer-events: none;
}
/* Notes App shit */
.notes-app {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: #fcf8e3;
    color: #333;
    font-family: var(--font-family-system);
    font-size: 1.1em;
    line-height: 1.5;
}
.notes-textarea {
    flex: 1;
    border: none;
    background: transparent;
    resize: none;
    outline: none;
    font-family: inherit;
    font-size: inherit;
    color: inherit;
    padding: var(--spacing-xl);
    width: 100%; /* Ensure it takes full width */
    height: 100%; /* Ensure it takes full height */
    box-sizing: border-box; /* Include padding in dimensions */
}
.notes-textarea.is-placeholder {
    color: var(--color-text-light); /* Greyed out */
    font-style: italic;
}
.notes-font-select-wrapper {
    margin-right: auto; /* Push font select to the left */
    display: flex;
    align-items: center;
}
#note-font-select {
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid #ccc;
    border-radius: var(--border-radius-sm);
    background-color: var(--color-white);
    font-size: var(--font-size-sm);
    color: var(--color-text-dark);
    cursor: pointer;
    outline: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-image: url('data:image/svg+xml;utf8,<svg fill="%23333333" height="24" viewBox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"><path d="M7 10l5 5 5-5z"/></svg>'); /* Custom arrow */
    background-repeat: no-repeat;
    background-position: right 8px center;
    background-size: 16px;
    padding-right: 30px;
}
#note-font-select:hover {
    border-color: var(--color-dgtlOS-blue);
}
#note-font-select:focus {
    box-shadow: 0 0 0 2px var(--color-dgtlOS-blue);
}


.dropdown-container {
    position: relative;
    display: inline-block;
}

.dropdown-container .dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: var(--spacing-sm);
    display: none;
    z-index: calc(var(--z-index-window-base) + 10);
    background: var(--color-white);
    backdrop-filter: blur(10px);
    border: 1px solid var(--color-border-gray);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    min-width: 180px;
    border-radius: var(--border-radius-md);
    padding: var(--spacing-sm) 0;
    color: var(--color-text-dark);
}
.dropdown-container .dropdown-menu .menu-item:hover {
    background: var(--color-transparent-black-light);
}
.notes-app-toolbar {
    display: flex;
    justify-content: flex-end; /* Align buttons to the right */
    align-items: center; /* Vertically center items */
    padding: var(--spacing-sm);
    border-bottom: 1px solid #e0e0e0; /* <-- Ensure this is border-bottom */
    background: #f8f9fa;
    flex-shrink: 0;
    gap: var(--spacing-sm);
}

.btn {
    background: var(--color-dgtlOS-blue);
    color: var(--color-white);
    border: none;
    padding: var(--spacing-xs) var(--spacing-lg);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: var(--font-size-sm);
    transition: background 0.1s ease;
}
.btn:hover {
    background: var(--color-dgtlOS-dark-blue);
}

/* --- Settings app stuff --- */
.settings-app {
    display: flex;
    flex-direction: row;
    height: 100%;
}
.settings-sidebar {
    width: 150px;
    flex-shrink: 0;
    background: #f0f0f0;
    border-right: 1px solid var(--color-border-gray);
    padding: var(--spacing-sm) 0;
    overflow-y: auto;
}
.settings-sidebar .category {
    font-weight: bold;
    padding: var(--spacing-sm) var(--spacing-xl);
    color: var(--color-text-light);
    text-transform: uppercase;
    font-size: var(--font-size-xs);
    margin-top: var(--spacing-md);
}
.settings-sidebar .nav-item {
    padding: var(--spacing-sm) var(--spacing-xl);
    cursor: pointer;
    font-size: var(--font-size-md);
    color: var(--color-text-dark);
}
.settings-sidebar .nav-item:hover,
.settings-sidebar .nav-item.active {
    background: var(--color-dgtlOS-blue);
    color: var(--color-white);
}
.settings-content-area {
    flex: 1;
    padding: var(--spacing-xxl);
    overflow-y: auto;
}
.settings-content-area h3 {
    margin-top: 0;
    color: var(--color-text-dark);
}
.settings-profile-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}
.settings-profile-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background-size: cover;
    background-position: center;
    border: 2px solid var(--color-dgtlOS-blue);
    cursor: pointer;
}
.settings-profile-avatar-options {
    display: flex;
    gap: var(--spacing-sm);
}
.settings-profile-avatar-option {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-size: cover;
    background-position: center;
    cursor: pointer;
    border: 2px solid transparent;
}
.settings-profile-avatar-option.selected {
    border-color: var(--color-dgtlOS-blue);
}
.settings-profile-name-input {
    width: calc(100% - 40px);
    padding: var(--spacing-sm);
    border: 1px solid #ccc;
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-md);
}
.settings-section-placeholder {
    color: var(--color-text-light);
    text-align: center;
    margin-top: var(--spacing-xxxl);
}
.keyboard-tester-area {
    width: 100%;
    height: 100px;
    border: 1px solid #ccc;
    border-radius: var(--border-radius-sm);
    padding: var(--spacing-md);
    font-family: var(--font-family-terminal);
    overflow-y: auto;
    white-space: pre-wrap;
    background: #f8f8f8;
    color: var(--color-text-dark);
}
.mouse-tester-area {
    border: 1px solid #ccc;
    border-radius: var(--border-radius-sm);
    padding: var(--spacing-md);
    background: #f8f8f8;
    color: var(--color-text-dark);
    min-height: 100px;
}
.mouse-click-counter {
    margin-top: var(--spacing-sm);
    font-weight: bold;
}
.software-update-info {
    text-align: center;
    padding: var(--spacing-xl);
    border: 1px solid #ddd;
    border-radius: var(--border-radius-md);
    background: #f9f9f9;
}
.software-update-info h4 {
    color: var(--color-text-dark);
    margin-top: 0;
}
.software-update-info p {
    color: var(--color-text-light);
}

.transport-bar .group {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}
.transport-bar .btn {
  background: #555; /* Darker buttons */
  border: 1px solid #666;
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  box-shadow: 0 1px 0 rgba(255,255,255,0.1) inset;
  font-weight: 600;
  color: var(--color-white);
  font-size: var(--font-size-sm);
  transition: background 0.1s ease-out, border-color 0.1s ease-out;
}
.transport-bar .btn:hover {
    background: #666;
    border-color: #777;
}
.transport-bar .btn:active {
    transform: translateY(1px);
    box-shadow: none;
}
.transport-bar .transport-controls .btn {
    padding: var(--spacing-xs) var(--spacing-lg);
    min-width: 60px; /* Wider for Play/Pause/Stop */
}

/* Input specific for DAW */
.transport-bar label {
    font-size: var(--font-size-sm);
    color: #bbb;
}
.transport-bar input[type="number"],
.transport-bar input[type="range"],
.daw-sidebar input[type="text"],
.daw-sidebar select {
  background: #4a4a4a;
  border: 1px solid #666;
  border-radius: var(--border-radius-xs);
  padding: 4px 6px;
  font-size: var(--font-size-sm);
  color: var(--color-white);
  outline: none;
}
.transport-bar input[type="number"] {
    width: 60px;
    text-align: center;
}
.transport-bar input[type="range"] {
    width: 80px;
    height: 4px;
    -webkit-appearance: none;
    appearance: none;
}
.transport-bar input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-dgtlOS-blue);
    cursor: grab;
    margin-top: -4px; /* Adjust to center thumb on track */
}
.transport-bar input[type="range"]::-moz-range-thumb {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-dgtlOS-blue);
    cursor: grab;
}

.master-volume-group {
    margin-left: auto; /* Push master volume to the right */
}


/* Main DAW content area */
.mini-daw .daw-body {
  display: flex;
  flex: 1;
  overflow: hidden;
  background: #2a2a2a; /* Main dark background */
}

/* Left sidebar (Tracks) */
.mini-daw .daw-sidebar {
  width: 250px; /* Wider sidebar */
  flex-shrink: 0;
  background: #333; /* Slightly lighter than main body */
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  padding: var(--spacing-md);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}
.daw-sidebar h3 {
    margin: 0;
    font-size: var(--font-size-xl);
    color: var(--color-white);
    text-align: center;
}
.daw-sidebar #track-list {
    flex: 1; /* Allow track list to grow */
    overflow-y: auto;
    padding-right: 5px; /* For scrollbar space */
}
.add-track-btn {
    width: 100%;
    background: var(--color-dgtlOS-blue) !important; /* Override generic btn style */
    border-color: var(--color-dgtlOS-dark-blue) !important;
}
.add-track-btn:hover {
    background: var(--color-dgtlOS-dark-blue) !important;
}
.sidebar-hint {
    font-size: var(--font-size-sm);
    color: #999;
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.track-item {
    background: #444;
    border: 1px solid #555;
    border-radius: var(--border-radius-sm);
    margin-bottom: var(--spacing-sm);
    padding: var(--spacing-sm);
    cursor: pointer;
    transition: background 0.1s, border-color 0.1s, box-shadow 0.1s;
    user-select: none;
}
.track-item:hover {
    background: #4c4c4c;
    border-color: #666;
}
.track-item.selected {
    background: #555;
    border-color: var(--color-dgtlOS-blue);
    box-shadow: 0 0 0 1px var(--color-dgtlOS-blue);
}
.track-item.selected:hover {
    background: #555; /* No change on hover if selected */
}
.track-item .track-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}
.track-name-input {
    flex: 1;
    background: transparent !important; /* Override default input background */
    border: none !important; /* Remove input border */
    font-size: var(--font-size-md);
    color: var(--color-white);
    padding: 0;
    margin: 0;
    outline: none;
}
.track-control-btn {
    background: #666;
    border: 1px solid #777;
    border-radius: var(--border-radius-xs);
    color: var(--color-white);
    font-size: var(--font-size-sm);
    width: 30px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.1s, border-color 0.1s;
}
.track-control-btn:hover {
    background: #777;
    border-color: #888;
}
.mute-btn.active {
    background: var(--color-dgtlOS-red);
    border-color: #e74c3c;
}
.mute-btn.active:hover {
    background: #c0392b;
    border-color: #c0392b;
}

.track-settings {
    display: grid;
    grid-template-columns: auto 1fr auto 1fr; /* Label, Input, Label, Input */
    gap: var(--spacing-xs) var(--spacing-sm);
    align-items: center;
    font-size: var(--font-size-sm);
}
.track-settings label {
    color: #bbb;
    white-space: nowrap;
}
.track-volume-slider,
.track-pan-slider {
    width: 100%;
    height: 4px;
    background: #666;
    border-radius: 2px;
    -webkit-appearance: none;
    appearance: none;
}
.track-volume-slider::-webkit-slider-thumb,
.track-pan-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--color-dgtlOS-blue);
    cursor: grab;
    margin-top: -3px;
}
.track-volume-slider::-moz-range-thumb,
.track-pan-slider::-moz-range-thumb {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--color-dgtlOS-blue);
    cursor: grab;
}
.instrument-select {
    width: 100%;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-image: url('data:image/svg+xml;utf8,<svg fill="%23ffffff" height="24" viewBox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"><path d="M7 10l5 5 5-5z"/></svg>');
    background-repeat: no-repeat;
    background-position: right 8px center;
    background-size: 16px;
    padding-right: 25px;
}


/* Piano Roll Area (combines keys and canvas) */
.mini-daw .piano-roll-area {
  flex: 1;
  display: flex;
  overflow: hidden; /* Important for preventing scrollbar flicker */
}

/* Left piano keys column */
.mini-daw .piano-keys-col {
  width: 72px; /* Fixed width for piano keys */
  background: #4a4a4a; /* Darker key column */
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  flex-shrink: 0;
  padding-top: var(--menu-bar-height); /* Offset for ruler */
}
.piano-key {
  height: var(--NOTE-HEIGHT, 18px); /* Using CSS variable here for consistency */
  padding-left: var(--spacing-sm);
  display: flex;
  align-items: center;
  font-size: 12px;
  color: #aaa;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
  box-sizing: border-box;
  user-select: none;
  font-weight: 500;
}
.piano-key.black-key {
    background: #3a3a3a; /* Darker for black keys */
    color: #eee;
}

/* Canvas container */
.mini-daw .canvas-wrap {
  flex: 1;
  overflow: auto; /* Crucial for scrolling the piano roll */
  background: #2a2a2a; /* Main dark background */
  position: relative;
}

/* Ruler (top of canvas) */
.mini-daw .ruler {
  height: var(--menu-bar-height); /* Match height of piano-keys-col padding */
  display: flex;
  align-items: center;
  padding-left: var(--spacing-md);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  color: #bbb;
  font-size: var(--font-size-sm);
  position: sticky;
  top: 0;
  z-index: 3;
  background: #3a3a3a; /* Match transport bar/piano key col */
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

canvas.piano-roll {
  display: block;
}

/* responsive */
@media (max-width: 900px) {
  .mini-daw .daw-sidebar {
      width: 180px; /* Make sidebar narrower on smaller screens */
  }
  .mini-daw .piano-keys-col {
      width: 50px;
  }
}

@media (max-width: 700px) {
    .mini-daw .daw-sidebar {
        display: none; /* Hide sidebar completely on very small screens */
    }
    .transport-bar .group.master-volume-group {
        margin-left: 0; /* Align master volume normally if sidebar is hidden */
    }
};

/* --- Weather App Styles --- */
.weather-app {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}
.weather-app .input-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}
.weather-app .input-group label {
    min-width: 80px;
    font-size: var(--font-size-md);
    color: var(--color-text-dark);
}
.weather-app .input-group input[type="text"] {
    flex: 1;
    padding: var(--spacing-sm);
    border: 1px solid #ccc;
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-md);
    outline: none;
}
.weather-app .weather-controls {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
    margin-top: var(--spacing-sm);
}
.weather-app .weather-controls .btn {
    background: var(--color-dgtlOS-blue);
    color: var(--color-white);
    border: none;
    padding: var(--spacing-xs) var(--spacing-lg);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: var(--font-size-sm);
}
.weather-app .weather-controls .btn:hover {
    background: var(--color-dgtlOS-dark-blue);
}
.weather-app .weather-output {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-md);
    background: #f8f8f8;
    border: 1px solid #eee;
    border-radius: var(--border-radius-md);
    min-height: 80px;
    color: var(--color-text-dark);
}
.weather-app .weather-output p {
    margin: var(--spacing-xs) 0;
}

/* --- Notifications --- */
#notification-container {
    position: fixed;
    top: var(--menu-bar-height);
    right: var(--spacing-xl);
    z-index: var(--z-index-notification);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    pointer-events: none;
}
.notification-item {
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(15px);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-md) var(--spacing-xl);
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    color: var(--color-text-dark);
    font-size: var(--font-size-md);
    max-width: 300px;
    min-width: 200px;
    transition: opacity 0.3s ease-out, transform 0.3s ease-out;
    opacity: 0;
    transform: translateY(-20px);
    pointer-events: auto;
}
.notification-item.show {
    opacity: 1;
    transform: translateY(0);
}
.notification-item.hide {
    opacity: 0;
    transform: translateY(-20px);
}

/* --- Screensaver --- */
#screensaver {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: transparent;
    backdrop-filter: blur(5px);
    display: none;
    overflow: hidden;
    cursor: default;
    z-index: var(--z-index-screensaver);
}
.bubble {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.8), rgba(100, 150, 255, 0.6) 80%);
    box-shadow: 0 0 10px rgba(0, 0, 255, 0.4), inset 0 0 5px rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: transform 0.1s ease-out, opacity 0.2s ease-out;
    pointer-events: auto;
}
@keyframes floatUpAndSway {
    0% { transform: translateY(0) translateX(0) scale(1); opacity: 0.8; }
    25% { transform: translateY(-25vh) translateX(5vw) scale(1.05); }
    50% { transform: translateY(-50vh) translateX(-5vw) scale(0.95); opacity: 0.9; }
    75% { transform: translateY(-75vh) translateX(5vw) scale(1.02); }
    100% { transform: translateY(-100vh) translateX(-5vw) scale(1); opacity: 0; }
}
.bubble.pop {
    transform: scale(1.5) rotate(15deg) !important;
    opacity: 0;
    filter: blur(5px);
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

#screensaver-message {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: rgba(255,255,255,0.7);
    font-size: 2em;
    text-align: center;
    pointer-events: none;
    user-select: none;
    z-index: calc(var(--z-index-screensaver) + 1);
}