/* Introduction Screen Overlay */
#intro-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: #020617;
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    perspective: 1000px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

/* Simulated Windows Desktop */
.desktop-environment {
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 75% 25%, #1e293b 0%, #020617 100%);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    transform-style: preserve-3d;
    transform-origin: center center;
}

/* Windows Desktop Icons Grid */
.desktop-icons {
    position: absolute;
    top: 20px;
    left: 20px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    z-index: 2;
}

.desktop-icon {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 80px;
    padding: 8px;
    border-radius: 6px;
    cursor: default;
    transition: background 0.2s;
}

.desktop-icon:hover {
    background: rgba(255, 255, 255, 0.1);
}

.desktop-icon span {
    color: #e2e8f0;
    font-size: 11px;
    margin-top: 6px;
    text-align: center;
    text-shadow: 0 1px 3px rgba(0,0,0,0.8);
    word-break: break-word;
}

/* Windows Taskbar at the bottom */
.desktop-taskbar {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 44px;
    background: rgba(15, 23, 42, 0.88);
    backdrop-filter: blur(16px);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    box-sizing: border-box;
    z-index: 10;
    color: #94a3b8;
    font-size: 12px;
}

.taskbar-left {
    display: flex;
    align-items: center;
}

.taskbar-start {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 15px;
    border-radius: 4px;
    transition: background 0.2s;
}

.taskbar-start:hover {
    background: rgba(255, 255, 255, 0.08);
}

.taskbar-icons {
    display: flex;
    gap: 8px;
}

.taskbar-icon {
    width: 34px;
    height: 34px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.taskbar-icon.active {
    background: rgba(255, 255, 255, 0.1);
    border-bottom: 2px solid #38bdf8;
}

.taskbar-tray {
    display: flex;
    align-items: center;
    gap: 12px;
}

.taskbar-time {
    color: #e2e8f0;
    font-weight: 500;
}

/* Simulated VS Code Window */
.vscode-window {
    width: 90%;
    max-width: 1150px;
    height: 82%;
    max-height: 720px;
    background: #1e1e1e;
    border-radius: 8px;
    box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.8), 0 0 0 1px rgba(255,255,255,0.08);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
    z-index: 5;
}

/* VS Code Title Bar */
.vscode-titlebar {
    height: 35px;
    background: #323233;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 12px;
    border-bottom: 1px solid #252526;
    user-select: none;
}

.vscode-controls {
    display: flex;
    gap: 8px;
}

.vscode-control {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}
.vscode-control.close { background: #ff5f56; }
.vscode-control.min { background: #ffbd2e; }
.vscode-control.max { background: #27c93f; }

.vscode-title {
    color: #cccccc;
    font-size: 12px;
    font-family: sans-serif;
}

/* VS Code Main Layout */
.vscode-main {
    flex: 1;
    display: flex;
    min-height: 0;
}

/* Sidebar Mockup */
.vscode-sidebar {
    width: 48px;
    background: #333333;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 10px;
    gap: 18px;
    border-right: 1px solid #252526;
}

.sidebar-icon {
    color: #858585;
    cursor: pointer;
    transition: color 0.2s;
}

.sidebar-icon.active {
    color: #ffffff;
    border-left: 2px solid #007acc;
    padding-left: 2px;
}

/* Explorer Bar Mockup */
.vscode-explorer {
    width: 210px;
    background: #252526;
    border-right: 1px solid #3c3c3c;
    display: flex;
    flex-direction: column;
    padding: 10px 0;
    font-size: 12px;
    color: #bbbbbb;
    box-sizing: border-box;
}

@media (max-width: 800px) {
    .vscode-explorer {
        display: none;
    }
}

.explorer-header {
    text-transform: uppercase;
    font-weight: bold;
    margin-bottom: 8px;
    padding: 0 12px;
    letter-spacing: 0.5px;
    color: #858585;
    font-size: 11px;
}

.explorer-tree {
    display: flex;
    flex-direction: column;
}

.tree-item {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 14px;
    cursor: pointer;
    font-size: 12px;
}

.tree-item:hover {
    background: rgba(255, 255, 255, 0.04);
}

.tree-item.active {
    background: #37373d;
    color: #ffffff;
}

.arrow {
    font-size: 9px;
    color: #858585;
}

.cpp-icon {
    font-size: 10px;
    font-weight: bold;
    color: #61afef;
    font-family: monospace;
}

.file-icon {
    font-size: 12px;
}

/* Editor Area */
.vscode-editor-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: #1e1e1e;
    min-width: 0;
}

/* Editor Tabs */
.vscode-tabs {
    height: 35px;
    background: #2d2d2d;
    display: flex;
    align-items: center;
    border-bottom: 1px solid #252526;
}

.vscode-tab {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0 15px;
    height: 100%;
    background: #2d2d2d;
    color: #969696;
    font-size: 12px;
    border-right: 1px solid #252526;
    position: relative;
}

.vscode-tab.active {
    background: #1e1e1e;
    color: #ffffff;
}

.vscode-tab.active::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: #007acc;
}

/* Breadcrumbs bar */
.vscode-breadcrumbs {
    height: 22px;
    background: #1e1e1e;
    border-bottom: 1px solid rgba(255,255,255,0.03);
    display: flex;
    align-items: center;
    padding: 0 16px;
    font-size: 11px;
    color: #858585;
    gap: 6px;
    font-family: var(--font-mono);
}

.breadcrumb-fn {
    color: #dcdcaa;
}

/* Action bar inside editor header (play button) */
.editor-actions {
    margin-left: auto;
    display: flex;
    align-items: center;
    padding-right: 12px;
}

.editor-play-btn {
    background: rgba(56, 189, 248, 0.12);
    border: 1px solid rgba(56, 189, 248, 0.3);
    color: #38bdf8;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
    transition: all 0.2s;
}

.editor-play-btn:hover {
    background: rgba(56, 189, 248, 0.25);
    color: #7dd3fc;
}

/* Editor Code Area with Line Numbers */
.vscode-code-area {
    flex: 1;
    padding: 12px 0;
    font-family: "Fira Code", Consolas, Monaco, monospace;
    font-size: 13.5px;
    line-height: 1.6;
    color: #d4d4d4;
    overflow-y: auto;
    position: relative;
}

.code-wrapper {
    display: flex;
    width: 100%;
}

.line-numbers {
    width: 45px;
    padding-right: 12px;
    text-align: right;
    color: #858585;
    user-select: none;
    font-size: 13px;
    line-height: 1.6;
}

.code-content {
    flex: 1;
    white-space: pre;
    tab-size: 4;
}

/* Syntax Highlighting Colors */
.kwd { color: #569cd6; font-weight: 500; } /* keywords: struct, int, return, for */
.typ { color: #4ec9b0; } /* types: std::string, std::vector, Profile */
.str { color: #ce9178; } /* strings: "Gazi University" */
.com { color: #6a9955; italic: true; } /* comments */
.fn  { color: #dcdcaa; } /* functions: main, operator<< */
.num { color: #b5cea8; } /* numbers */
.inc { color: #c586c0; } /* includes: #include */

/* Simulated Mouse Cursor */
#fake-cursor {
    position: absolute;
    width: 20px;
    height: 20px;
    z-index: 100;
    pointer-events: none;
    top: 80%;
    left: 50%;
    transform: translate(-5px, -5px);
}

/* Status Bar */
.vscode-statusbar {
    height: 22px;
    background: #007acc;
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 12px;
    font-size: 11px;
}

.status-left, .status-right {
    display: flex;
    gap: 12px;
}

/* Fade out animation overlay */
#intro-blackout {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: #000000;
    z-index: 100000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.8s ease;
}

#intro-blackout.active {
    opacity: 1;
}

/* Mobile Responsiveness for Intro Screen & VS Code Mockup */
@media (max-width: 768px) {
    .vscode-window {
        width: 96%;
        height: 88%;
        border-radius: 6px;
    }
    
    .desktop-icons {
        display: none; /* Hide background icons on small screens */
    }

    .vscode-sidebar {
        width: 36px;
        padding-top: 8px;
        gap: 14px;
    }
    
    .sidebar-icon svg {
        width: 18px;
        height: 18px;
    }

    .vscode-code-area {
        font-size: 11px;
        padding: 8px 0;
    }

    .line-numbers {
        width: 28px;
        padding-right: 6px;
        font-size: 10.5px;
    }

    .vscode-breadcrumbs {
        font-size: 9.5px;
        height: 18px;
        padding: 0 8px;
    }

    .editor-play-btn {
        padding: 3px 6px;
        font-size: 10px;
    }
    
    .taskbar-tray span:not(.taskbar-time) {
        display: none; /* Hide ENG text on mobile */
    }
}

@media (max-width: 480px) {
    .vscode-window {
        width: 98%;
        height: 92%;
    }
    
    .vscode-statusbar .status-right {
        display: none; /* Hide status bar right details on tiny screens */
    }
    
    .vscode-title {
        font-size: 10px;
    }
}

/* Desktop Wallpaper Watermark */
.desktop-watermark {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    filter: drop-shadow(0 0 30px rgba(56, 189, 248, 0.15));
}