:root {
    --win-bg: #c0c0c0;
    --win-light: #ffffff;
    --win-dark: #808080;
    --win-black: #000000;
    --win-blue: #000080;
    --cyber-cyan: #00e8ff;
    --cyber-green: #00ff41;
    --cyber-blue: #0044ff;
    --cyber-pink: #ff00ea;
    --dark-bg: #050a0f;
}

/* --- BASE STYLES --- */
* { box-sizing: border-box; }
body {
    margin: 0; padding: 0;
    background-color: #008080; /* Win98 Teal */
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    height: 100vh; width: 100vw;
    overflow: hidden;
    display: flex; flex-direction: column;
}

/* --- DESKTOP --- */
#desktop {
    flex: 1; position: relative;
    padding: 20px;
    background-image: radial-gradient(circle at 50% 50%, rgba(0, 232, 255, 0.03) 0%, transparent 70%);
    display: grid;
    grid-template-columns: repeat(auto-fill, 90px);
    grid-template-rows: repeat(auto-fill, 100px);
    grid-auto-flow: column;
    gap: 15px;
    z-index: 1;
}

.desktop-icon {
    width: 80px; text-align: center;
    color: white; cursor: pointer;
    font-size: 11px; font-weight: bold;
    text-shadow: 1px 1px 2px #000;
    display: flex; flex-direction: column; align-items: center; justify-content: flex-start;
    padding: 10px 5px; border: 1px solid transparent;
}
.desktop-icon:hover { background: rgba(255,255,255,0.1); border: 1px dotted rgba(255,255,255,0.3); }
.desktop-icon img { width: 32px; height: 32px; margin-bottom: 5px; }

/* --- TASKBAR --- */
#taskbar {
    height: 32px; background: var(--win-bg);
    border-top: 2px solid var(--win-light);
    display: flex; align-items: center; padding: 2px 4px; z-index: 10000;
}

.start-btn {
    font-weight: bold; padding: 2px 8px; font-size: 13px;
    border: 2px solid; border-color: var(--win-light) var(--win-black) var(--win-black) var(--win-light);
    display: flex; align-items: center; gap: 4px; cursor: pointer; height: 100%;
}
.start-btn:active { border-color: var(--win-black) var(--win-light) var(--win-light) var(--win-black); padding: 3px 7px 1px 9px; }
.start-btn img { width: 22px; }

.task-btn {
    min-width: 140px; height: 100%; margin-left: 4px;
    border: 2px solid; border-color: var(--win-light) var(--win-black) var(--win-black) var(--win-light);
    background: var(--win-bg); font-size: 11px; font-weight: bold;
    display: flex; align-items: center; padding: 0 8px; gap: 6px; cursor: pointer;
}
.task-btn.active { 
    border-color: var(--win-black) var(--win-light) var(--win-light) var(--win-black); 
    background: #e0e0e0; font-weight: normal; 
}
.task-btn:hover { background: #dcdcdc; }

#tray {
    margin-left: auto; padding: 0 8px;
    border: 2px inset var(--win-light);
    display: flex; align-items: center; height: 100%; font-size: 11px; font-weight: bold; gap: 8px;
}

/* --- WINDOW SYSTEM --- */
.window {
    background: var(--win-bg); position: absolute;
    border: 3px solid; border-color: var(--win-light) var(--win-black) var(--win-black) var(--win-light);
    display: flex; flex-direction: column;
    box-shadow: 4px 4px 20px rgba(0,255,100,0.1), 0 0 10px rgba(0,232,255,0.05);
    z-index: 100; min-width: 300px; min-height: 200px;
}
/* Monitor Bezel Effect */
.window::before {
    content: ""; position: absolute; top: -4px; left: -4px; right: -4px; bottom: -4px;
    border: 2px solid #1a2a3a; pointer-events: none; z-index: 10;
}
.window.focused::after {
    content: "UPLINK_STABLE"; position: absolute; top: 2px; right: 50px;
    font-size: 8px; color: #ffff00; font-family: 'JetBrains Mono'; opacity: 0.6;
}
.window.focused { z-index: 1000; box-shadow: 0 0 30px rgba(0,232,255,0.2); }
.window.maximized { border: none !important; width: 100vw !important; height: calc(100vh - 32px) !important; top: 0 !important; left: 0 !important; }

.title-bar {
    background: linear-gradient(90deg, #000080, #1084d0);
    color: white; padding: 2px 6px; font-weight: bold; font-size: 11px;
    display: flex; justify-content: space-between; align-items: center;
    cursor: default; user-select: none; border-bottom: 2px solid var(--win-dark);
}
.title-bar.active { background: linear-gradient(90deg, var(--win-blue), #1084d0); }
.title-bar.inactive { background: linear-gradient(90deg, var(--win-dark), #b0b0b0); }

.title-controls { display: flex; gap: 2px; }
.title-controls button {
    width: 16px; height: 14px; background: var(--win-bg);
    border: 1px solid; border-color: var(--win-light) var(--win-black) var(--win-black) var(--win-light);
    font-size: 9px; font-weight: bold; display: flex; align-items: center; justify-content: center;
    padding: 0; cursor: pointer;
}
.title-controls button:active { border-color: var(--win-black) var(--win-light) var(--win-light) var(--win-black); }

.window-toolbar span { padding: 0 4px; color: #444; }
.window-toolbar span:first-letter { text-decoration: underline; font-weight: bold; }
.window-toolbar span:hover { background: #000080; color: #fff; }

.address-bar {
    padding: 1px 4px; border-bottom: 2px solid var(--win-dark);
    display: flex; gap: 4px; align-items: center; font-size: 9px;
    background: #e0e0e0; height: 16px; line-height: 1;
}
.address-bar input {
    flex: 1; height: 12px; border: 1px inset var(--win-light);
    padding: 0 4px; font-size: 9px; outline: none; background: #fff;
    font-family: 'JetBrains Mono', monospace; color: #000;
}
.go-btn {
    border: 1px outset var(--win-light); background: #c0c0c0;
    padding: 0 4px; font-size: 9px; font-weight: bold; height: 12px; 
    display: flex; align-items: center; cursor: pointer;
}
.go-btn:active { border: 1px inset var(--win-light); padding: 1px 3px 0 5px; }

/* Resizer Handle */
.resizer {
    width: 10px; height: 10px; background: repeating-linear-gradient(135deg, transparent, transparent 1px, #555 1.5px);
    position: absolute; right: 0; bottom: 0; cursor: nwse-resize; z-index: 11;
}

/* --- START MENU --- */
#start-menu {
    position: fixed; bottom: 32px; left: 2px; width: 200px;
    background: var(--win-bg); border: 2px solid;
    border-color: var(--win-light) var(--win-black) var(--win-black) var(--win-light);
    display: none; flex-direction: column; z-index: 99999;
}
.start-sidebar {
    width: 25px; background: linear-gradient(0deg, #000080, #1084d0);
    display: flex; align-items: center; justify-content: flex-end; padding-bottom: 10px;
}
.start-sidebar-text {
    transform: rotate(-90deg); color: #fff; font-weight: bold; 
    font-size: 14px; white-space: nowrap; width: 100%; text-align: right;
}
.start-items { flex: 1; display: flex; flex-direction: column; padding: 2px; }
.start-item {
    display: flex; align-items: center; gap: 10px; padding: 6px 10px;
    font-size: 12px; font-weight: bold; cursor: pointer;
}
.start-item:hover { background: #000080; color: #fff; }
.start-item img { width: 24px; height: 24px; }
.start-divider { height: 1px; background: var(--win-dark); border-bottom: 1px solid var(--win-light); margin: 2px 0; }

.window-content {
    flex: 1; background: #fff; border: 2px inset var(--win-light);
    margin: 2px; overflow: auto; position: relative;
}

/* --- ADVANCED MONITOR FEATURES --- */
#crt-filter {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.05) 50%),
                linear-gradient(90deg, rgba(255, 0, 0, 0.01), rgba(0, 255, 0, 0.01), rgba(0, 0, 255, 0.01));
    background-size: 100% 4px, 6px 100%; z-index: 99999; pointer-events: none; opacity: 0.3;
}
#crt-filter::before {
    content: " "; display: block; position: absolute; top: 0; left: 0; bottom: 0; right: 0;
    background: url('https://grainy-gradients.vercel.app/noise.svg'); opacity: 0.05; z-index: 100000;
}
#crt-filter::after {
    content: " "; display: block; position: absolute; top: 0; left: 0; bottom: 0; right: 0;
    background: rgba(18, 16, 16, 0.03); opacity: 0; z-index: 99999; pointer-events: none;
    animation: flicker 0.1s infinite;
}
@keyframes ticker { from { transform: translateX(100%); } to { transform: translateX(-100%); } }
@keyframes flicker { 0% { opacity: 0.1; } 50% { opacity: 0.2; } 100% { opacity: 0.1; } }

.phosphor-glow {
    filter: drop-shadow(0 0 5px var(--cyber-cyan));
}