/* Windows XP Luna Blue Theme */
@import url('https://fonts.googleapis.com/css2?family=Trebuchet+MS:wght@400;700&display=swap');

:root {
    /* Luna Blue Colors */
    --xp-blue-dark: #0A246A;
    --xp-blue-medium: #245EDC;
    --xp-blue-light: #3A6EA5;
    --xp-blue-highlight: #4A7DC4;
    --xp-blue-taskbar-start: #245EDC;
    --xp-blue-taskbar-end: #0A246A;
    
    /* Start Button Green */
    --xp-green-start: #4CA64C;
    --xp-green-start-light: #5CBF5C;
    --xp-green-start-dark: #3E8E3E;
    
    /* Window Colors */
    --xp-titlebar-active-start: #0A246A;
    --xp-titlebar-active-mid: #A6CAF0;
    --xp-titlebar-active-end: #0A246A;
    --xp-titlebar-inactive: #7A96DF;
    
    /* Button Colors */
    --xp-button-face: #ECE9D8;
    --xp-button-highlight: #FFFFFF;
    --xp-button-shadow: #ACA899;
    --xp-button-dark-shadow: #716F64;
    
    /* Background and Surface */
    --xp-desktop-blue: #3A6EA5;
    --xp-window-bg: #ECE9D8;
    --xp-white: #FFFFFF;
    --xp-black: #000000;
    
    /* Selection */
    --xp-selection-bg: #316AC5;
    --xp-selection-text: #FFFFFF;
    
    /* Close Button */
    --xp-close-red: #E04343;
    --xp-close-red-hover: #FF6B6B;
    
    /* Fonts */
    --xp-font-ui: Tahoma, Geneva, Verdana, sans-serif;
    --xp-font-title: 'Trebuchet MS', Trebuchet, sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--xp-font-ui);
    font-size: 11px;
    background: var(--xp-desktop-blue);
    overflow: hidden;
    user-select: none;
    -webkit-user-select: none;
}

/* Desktop - Windows XP "Bliss" wallpaper */
#desktop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 30px;
    background:
        /* Wispy clouds */
        radial-gradient(ellipse 180px 50px at 15% 22%, rgba(255,255,255,0.55) 0%, transparent 70%),
        radial-gradient(ellipse 250px 60px at 25% 18%, rgba(255,255,255,0.4) 0%, transparent 70%),
        radial-gradient(ellipse 200px 45px at 50% 15%, rgba(255,255,255,0.5) 0%, transparent 70%),
        radial-gradient(ellipse 160px 40px at 55% 20%, rgba(255,255,255,0.35) 0%, transparent 70%),
        radial-gradient(ellipse 220px 55px at 75% 12%, rgba(255,255,255,0.5) 0%, transparent 70%),
        radial-gradient(ellipse 280px 65px at 85% 17%, rgba(255,255,255,0.45) 0%, transparent 70%),
        radial-gradient(ellipse 140px 35px at 40% 25%, rgba(255,255,255,0.3) 0%, transparent 70%),
        /* Rolling hills - foreground hill (left) */
        radial-gradient(ellipse 120% 45% at 20% 100%, #4a9e2f 0%, #3d8c28 20%, transparent 55%),
        /* Rolling hills - foreground hill (right) */
        radial-gradient(ellipse 100% 40% at 80% 100%, #52a836 0%, #429430 18%, transparent 50%),
        /* Rolling hills - center gentle hill */
        radial-gradient(ellipse 140% 50% at 50% 105%, #5db840 0%, #4a9e2f 25%, transparent 55%),
        /* Mid-ground rolling hills */
        radial-gradient(ellipse 80% 30% at 30% 85%, #68c44a 0%, #55ad38 20%, transparent 50%),
        radial-gradient(ellipse 90% 28% at 70% 82%, #60bc42 0%, #4fa833 15%, transparent 48%),
        /* Distant hills */
        radial-gradient(ellipse 100% 25% at 50% 75%, #78cc58 0%, #65c048 15%, transparent 45%),
        radial-gradient(ellipse 70% 18% at 20% 72%, #7ed060 0%, #6dc850 10%, transparent 40%),
        radial-gradient(ellipse 70% 18% at 80% 70%, #7ed060 0%, #6dc850 10%, transparent 40%),
        /* Grass base layer */
        linear-gradient(180deg,
            transparent 55%,
            #85d465 58%,
            #6ac44a 65%,
            #55b438 75%,
            #4a9e2f 85%,
            #3f8a28 95%,
            #358022 100%
        ),
        /* Sky */
        linear-gradient(180deg,
            #1a5dab 0%,
            #2a78c8 8%,
            #3d8fd8 16%,
            #56a3e2 25%,
            #6eb5ea 35%,
            #89c8f0 45%,
            #a0d4f4 55%,
            #b8e0f6 65%,
            #cdeaf8 80%,
            #e0f0fa 100%
        );
    padding: 10px;
}

/* Desktop Icons */
.desktop-icons {
    display: flex;
    flex-direction: column;
    gap: 20px;
    padding: 10px;
}

.desktop-icon {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 75px;
    padding: 5px;
    cursor: pointer;
    border-radius: 3px;
}

.desktop-icon:hover {
    background: rgba(255, 255, 255, 0.15);
}

.desktop-icon.selected {
    background: rgba(49, 106, 197, 0.6);
}

.desktop-icon img,
.desktop-icon .icon-placeholder {
    width: 48px;
    height: 48px;
    margin-bottom: 5px;
    image-rendering: pixelated;
}

.icon-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #7EB4EA 0%, #1E5799 100%);
    border-radius: 4px;
    font-size: 20px;
}

.desktop-icon span {
    color: white;
    text-align: center;
    font-size: 11px;
    text-shadow: 1px 1px 1px rgba(0, 0, 0, 0.8);
    word-wrap: break-word;
    max-width: 100%;
}

/* XP Classic Button */
.xp-button {
    font-family: var(--xp-font-ui);
    font-size: 11px;
    padding: 4px 12px;
    background: var(--xp-button-face);
    border: 1px solid;
    border-color: var(--xp-button-highlight) var(--xp-button-dark-shadow) var(--xp-button-dark-shadow) var(--xp-button-highlight);
    border-radius: 3px;
    cursor: pointer;
    outline: none;
    min-width: 75px;
}

.xp-button:hover {
    background: linear-gradient(180deg, #FFFFFF 0%, #E3DFD3 100%);
}

.xp-button:active {
    border-color: var(--xp-button-dark-shadow) var(--xp-button-highlight) var(--xp-button-highlight) var(--xp-button-dark-shadow);
    padding: 5px 11px 3px 13px;
}

.xp-button:focus {
    border: 1px solid var(--xp-blue-medium);
    box-shadow: inset 0 0 0 1px var(--xp-blue-light);
}

.xp-button:disabled {
    color: var(--xp-button-shadow);
    cursor: not-allowed;
}

/* XP Input */
.xp-input {
    font-family: var(--xp-font-ui);
    font-size: 11px;
    padding: 3px 5px;
    border: 1px solid;
    border-color: var(--xp-button-shadow) var(--xp-button-highlight) var(--xp-button-highlight) var(--xp-button-shadow);
    background: var(--xp-white);
}

.xp-input:focus {
    outline: none;
    border-color: var(--xp-blue-medium);
}

/* XP Select */
.xp-select {
    font-family: var(--xp-font-ui);
    font-size: 11px;
    padding: 2px 4px;
    border: 1px solid;
    border-color: var(--xp-button-shadow) var(--xp-button-highlight) var(--xp-button-highlight) var(--xp-button-shadow);
    background: var(--xp-white);
    cursor: pointer;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 16px;
    height: 16px;
}

::-webkit-scrollbar-track {
    background: #F1EFE2;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(90deg, #ECE9D8 0%, #D4D0C8 50%, #ECE9D8 100%);
    border: 1px solid;
    border-color: var(--xp-button-highlight) var(--xp-button-dark-shadow) var(--xp-button-dark-shadow) var(--xp-button-highlight);
}

::-webkit-scrollbar-button {
    background: var(--xp-button-face);
    border: 1px solid;
    border-color: var(--xp-button-highlight) var(--xp-button-dark-shadow) var(--xp-button-dark-shadow) var(--xp-button-highlight);
}

/* Loading spinner */
.xp-loading {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid var(--xp-button-shadow);
    border-top-color: var(--xp-blue-medium);
    border-radius: 50%;
    animation: xp-spin 1s linear infinite;
}

@keyframes xp-spin {
    to { transform: rotate(360deg); }
}

/* Toolbar */
.xp-toolbar {
    display: flex;
    align-items: center;
    gap: 2px;
    padding: 2px 4px;
    background: linear-gradient(180deg, #FAFAFA 0%, #E8E4D8 100%);
    border-bottom: 1px solid var(--xp-button-shadow);
}

.xp-toolbar-button {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 3px 6px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 3px;
    cursor: pointer;
    font-family: var(--xp-font-ui);
    font-size: 11px;
    color: var(--xp-black);
}

.xp-toolbar-button:hover {
    background: linear-gradient(180deg, #FFFFFF 0%, #E3DFD3 100%);
    border-color: var(--xp-button-highlight) var(--xp-button-dark-shadow) var(--xp-button-dark-shadow) var(--xp-button-highlight);
}

.xp-toolbar-button:active {
    background: var(--xp-button-shadow);
}

.xp-toolbar-button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.xp-toolbar-separator {
    width: 1px;
    height: 22px;
    background: var(--xp-button-shadow);
    margin: 0 4px;
}

/* Status bar */
.xp-statusbar {
    display: flex;
    align-items: center;
    padding: 2px 4px;
    background: var(--xp-button-face);
    border-top: 1px solid var(--xp-button-highlight);
    font-size: 11px;
}

.xp-statusbar-section {
    padding: 0 8px;
    border-right: 1px solid var(--xp-button-shadow);
}

.xp-statusbar-section:last-child {
    border-right: none;
    flex: 1;
}

/* Inset Panel */
.xp-inset {
    border: 2px solid;
    border-color: var(--xp-button-shadow) var(--xp-button-highlight) var(--xp-button-highlight) var(--xp-button-shadow);
    background: var(--xp-white);
}

/* List View */
.xp-listview {
    background: var(--xp-white);
    border: 2px solid;
    border-color: var(--xp-button-shadow) var(--xp-button-highlight) var(--xp-button-highlight) var(--xp-button-shadow);
    overflow: auto;
}

.xp-listview-header {
    display: flex;
    background: var(--xp-button-face);
    border-bottom: 1px solid var(--xp-button-shadow);
    position: sticky;
    top: 0;
}

.xp-listview-header-cell {
    padding: 3px 8px;
    border-right: 1px solid var(--xp-button-shadow);
    font-weight: normal;
    cursor: pointer;
    white-space: nowrap;
}

.xp-listview-header-cell:hover {
    background: linear-gradient(180deg, #FFFFFF 0%, #E3DFD3 100%);
}

.xp-listview-row {
    display: flex;
    align-items: center;
    padding: 2px 4px;
    cursor: pointer;
}

.xp-listview-row:hover {
    background: #E8E8E8;
}

.xp-listview-row.selected {
    background: var(--xp-selection-bg);
    color: var(--xp-selection-text);
}

.xp-listview-cell {
    padding: 2px 8px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Dialog */
.xp-dialog-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
}

.xp-dialog {
    min-width: 300px;
    background: var(--xp-button-face);
    border: 3px solid;
    border-color: var(--xp-button-highlight) var(--xp-button-dark-shadow) var(--xp-button-dark-shadow) var(--xp-button-highlight);
    box-shadow: 2px 2px 10px rgba(0, 0, 0, 0.3);
}

.xp-dialog-content {
    padding: 15px;
}

.xp-dialog-buttons {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    padding: 10px 15px;
    background: var(--xp-button-face);
    border-top: 1px solid var(--xp-button-shadow);
}

/* Form elements */
.xp-form-group {
    margin-bottom: 12px;
}

.xp-form-group label {
    display: block;
    margin-bottom: 4px;
}

.xp-form-group .xp-input,
.xp-form-group .xp-select {
    width: 100%;
}