@font-face {
    font-family: 'Space Grotesk';
    src: url('../fonts/SpaceGrotesk-Regular.woff2') format('woff2');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Space Grotesk';
    src: url('../fonts/SpaceGrotesk-Medium.woff2') format('woff2');
    font-weight: 500;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Space Grotesk';
    src: url('../fonts/SpaceGrotesk-Bold.woff2') format('woff2');
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Sarabun';
    src: url('../fonts/Sarabun-Regular.woff2') format('woff2');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Sarabun';
    src: url('../fonts/Sarabun-Medium.woff2') format('woff2');
    font-weight: 500;
    font-style: normal;
    font-display: swap;
}

:root {
    --color-bg: #0a0e1a;
    --color-surface: #111827;
    --color-surface-2: #1e293b;
    --color-surface-3: #334155;
    --color-border: rgba(148, 163, 184, 0.12);
    --color-border-hover: rgba(148, 163, 184, 0.25);
    --color-text: #f1f5f9;
    --color-text-muted: #94a3b8;
    --color-text-dim: #64748b;
    --color-accent: #6366f1;
    --color-accent-light: #818cf8;
    --color-accent-glow: rgba(99, 102, 241, 0.3);
    --color-purple: #a855f7;
    --color-purple-glow: rgba(168, 85, 247, 0.2);
    --color-teal: #14b8a6;
    --color-overlay: rgba(0, 0, 0, 0.7);
    --font-sans: 'Space Grotesk', 'Sarabun', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px var(--color-accent-glow), 0 0 80px var(--color-purple-glow);
    --taskbar-height: 48px;
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
}

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

html,
body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    font-family: var(--font-sans);
    font-size: 14px;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    user-select: none;
}

.boot-screen {
    position: fixed;
    inset: 0;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg);
    transition: opacity 0.6s ease, visibility 0.6s ease;
}

.boot-screen.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.boot-loader {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 32px;
}

.boot-brand {
    font-size: 20px;
    font-weight: 500;
    letter-spacing: 0.04em;
    color: var(--color-text);
    opacity: 0.9;
}

.boot-brand span {
    color: var(--color-accent-light);
}

.boot-spinner {
    width: 32px;
    height: 32px;
    border: 2px solid var(--color-surface-3);
    border-top-color: var(--color-accent-light);
    border-radius: 50%;
    animation: boot-spin 0.8s linear infinite;
}

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

.boot-status {
    font-size: 12px;
    color: var(--color-text-dim);
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.desktop {
    position: fixed;
    inset: 0;
    display: flex;
    flex-direction: column;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.desktop.visible {
    opacity: 1;
}

.desktop-wallpaper {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.desktop-area {
    position: relative;
    z-index: 1;
    flex: 1;
    padding: 24px;
    display: grid;
    grid-template-columns: repeat(auto-fill, 84px);
    grid-template-rows: repeat(auto-fill, 100px);
    gap: 8px;
    align-content: start;
}

.desktop-icon {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    width: 84px;
    padding: 8px 4px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background var(--transition-fast);
    position: relative;
}

.desktop-icon:hover {
    background: rgba(255, 255, 255, 0.06);
}

.desktop-icon.selected {
    background: rgba(99, 102, 241, 0.15);
    outline: 1px solid rgba(99, 102, 241, 0.3);
}

.desktop-icon.dragging {
    opacity: 0.6;
    z-index: 100;
    pointer-events: none;
}

.desktop-icon-img {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    overflow: hidden;
    transition: transform var(--transition-fast);
}

.desktop-icon:hover .desktop-icon-img {
    transform: scale(1.05);
}

.desktop-icon-img img,
.desktop-icon-img svg {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.desktop-icon-label {
    font-size: 11px;
    font-weight: 500;
    color: var(--color-text);
    text-align: center;
    line-height: 1.3;
    max-width: 76px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.8);
}

@keyframes icon-pulse {
    0%, 100% { box-shadow: 0 0 0 0 var(--color-accent-glow); }
    50% { box-shadow: 0 0 12px 4px var(--color-accent-glow); }
}

.desktop-icon.selected .desktop-icon-img {
    animation: icon-pulse 2s ease-in-out infinite;
}

.taskbar {
    position: relative;
    z-index: 500;
    height: var(--taskbar-height);
    display: flex;
    align-items: center;
    padding: 0 12px;
    background: rgba(17, 24, 39, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-top: 1px solid var(--color-border);
}

.taskbar-start {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background var(--transition-fast);
}

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

.taskbar-start-icon {
    width: 18px;
    height: 18px;
}

.taskbar-start-label {
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.02em;
}

.taskbar-center {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
}

.taskbar-app {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background var(--transition-fast);
}

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

.taskbar-app.active {
    background: rgba(99, 102, 241, 0.15);
    border-bottom: 2px solid var(--color-accent);
}

.taskbar-app-icon {
    width: 20px;
    height: 20px;
}

.taskbar-app-label {
    font-size: 12px;
    color: var(--color-text-muted);
}

.taskbar-tray {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 8px;
}

.taskbar-clock {
    font-size: 12px;
    font-weight: 500;
    color: var(--color-text-muted);
    letter-spacing: 0.03em;
    min-width: 44px;
    text-align: right;
}

.taskbar-date {
    font-size: 10px;
    color: var(--color-text-dim);
    text-align: right;
}

.start-menu {
    position: absolute;
    bottom: calc(var(--taskbar-height) + 8px);
    left: 12px;
    z-index: 600;
    width: 260px;
    background: rgba(17, 24, 39, 0.95);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px) scale(0.97);
    transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
    box-shadow: var(--shadow-lg);
}

.start-menu.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.start-menu-header {
    padding: 16px 12px 12px;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 8px;
}

.start-menu-title {
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.start-menu-subtitle {
    font-size: 11px;
    color: var(--color-text-dim);
    margin-top: 2px;
}

.start-menu-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background var(--transition-fast);
    font-size: 13px;
}

.start-menu-item:hover {
    background: rgba(255, 255, 255, 0.06);
}

.start-menu-item svg {
    width: 16px;
    height: 16px;
    color: var(--color-text-muted);
}

.start-menu-divider {
    height: 1px;
    background: var(--color-border);
    margin: 4px 0;
}

.transition-overlay {
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0);
    pointer-events: none;
    transition: background 0.4s ease;
}

.transition-overlay.active {
    background: rgba(0, 0, 0, 0.65);
    pointer-events: all;
}

.cinematic-window {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.92);
    z-index: 2000;
    width: 90%;
    max-width: 720px;
    background: linear-gradient(145deg, #111827 0%, #0f172a 100%);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-glow), var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    overflow: hidden;
    transition: none;
}

.cinematic-window.visible {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, -50%) scale(1);
}

.cw-titlebar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
    background: rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid var(--color-border);
}

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

.cw-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    cursor: pointer;
    transition: opacity var(--transition-fast);
}

.cw-dot:hover {
    opacity: 0.8;
}

.cw-dot-close {
    background: #ef4444;
}

.cw-dot-min {
    background: #eab308;
}

.cw-dot-max {
    background: #22c55e;
}

.cw-title-text {
    font-size: 12px;
    font-weight: 500;
    color: var(--color-text-muted);
    letter-spacing: 0.03em;
}

.cw-close-btn {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    cursor: pointer;
    color: var(--color-text-dim);
    transition: background var(--transition-fast), color var(--transition-fast);
}

.cw-close-btn:hover {
    background: rgba(239, 68, 68, 0.2);
    color: #ef4444;
}

.cw-body {
    padding: 48px 40px 40px;
    position: relative;
    overflow: hidden;
}

.cw-particle-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

.cw-content {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.cw-logo-row {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 12px;
}

.cw-logo-icon {
    width: 64px;
    height: 64px;
}

.cw-logo-name {
    font-size: 42px;
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #e2e8f0 0%, #818cf8 50%, #a855f7 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.cw-badges {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
}

.cw-badge {
    font-size: 10px;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 4px 10px;
    border-radius: 100px;
    background: rgba(99, 102, 241, 0.12);
    color: var(--color-accent-light);
    border: 1px solid rgba(99, 102, 241, 0.2);
}

.cw-badge-alt {
    background: rgba(168, 85, 247, 0.12);
    color: var(--color-purple);
    border-color: rgba(168, 85, 247, 0.2);
}

.cw-tagline {
    font-size: 16px;
    color: var(--color-text-muted);
    margin-bottom: 8px;
    letter-spacing: 0.02em;
}

.cw-subtitle {
    font-size: 13px;
    color: var(--color-text-dim);
    margin-bottom: 36px;
    letter-spacing: 0.03em;
}

.cw-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 10px;
    width: 100%;
    margin-bottom: 36px;
}

.cw-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 14px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-base), background var(--transition-base);
}

.cw-feature:hover {
    border-color: var(--color-border-hover);
    background: rgba(255, 255, 255, 0.05);
}

.cw-feature-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-accent);
    flex-shrink: 0;
}

.cw-feature-text {
    font-size: 12px;
    font-weight: 500;
    color: var(--color-text);
    letter-spacing: 0.02em;
}

.cw-actions {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
}

.cw-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.02em;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: transform var(--transition-fast), box-shadow var(--transition-base), background var(--transition-base);
}

.cw-btn:hover {
    transform: translateY(-1px);
}

.cw-btn-primary {
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-purple) 100%);
    color: #fff;
    box-shadow: 0 4px 20px var(--color-accent-glow);
}

.cw-btn-primary:hover {
    box-shadow: 0 6px 28px var(--color-accent-glow);
}

.cw-btn-secondary {
    background: transparent;
    color: var(--color-text-muted);
    border: 1px solid var(--color-border);
}

.cw-btn-secondary:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: var(--color-border-hover);
}

.cw-btn-secondary.disabled {
    opacity: 0.4;
    pointer-events: none;
    cursor: not-allowed;
}

.cw-footer-note {
    font-size: 11px;
    color: var(--color-text-dim);
    letter-spacing: 0.03em;
}

@media (max-width: 768px) {
    .desktop-area {
        padding: 16px;
        grid-template-columns: repeat(auto-fill, 76px);
        grid-template-rows: repeat(auto-fill, 92px);
        gap: 4px;
    }

    .desktop-icon {
        width: 76px;
    }

    .desktop-icon-img {
        width: 40px;
        height: 40px;
    }

    .desktop-icon-label {
        font-size: 10px;
    }

    .cw-body {
        padding: 32px 20px 28px;
    }

    .cw-logo-name {
        font-size: 32px;
    }

    .cw-logo-icon {
        width: 48px;
        height: 48px;
    }

    .cw-features {
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }

    .cw-feature {
        padding: 10px 12px;
    }

    .cw-actions {
        flex-direction: column;
        width: 100%;
    }

    .cw-btn {
        justify-content: center;
        width: 100%;
    }

    .start-menu {
        width: calc(100% - 24px);
    }

    .cinematic-window {
        width: 95%;
        border-radius: var(--radius-lg);
    }
}

@media (max-width: 480px) {
    .taskbar-start-label {
        display: none;
    }

    .cw-logo-row {
        flex-direction: column;
        gap: 8px;
    }

    .cw-logo-name {
        font-size: 28px;
    }

    .cw-features {
        grid-template-columns: 1fr;
    }

    .cw-badges {
        flex-wrap: wrap;
        justify-content: center;
    }

    .cw-tagline {
        font-size: 14px;
    }

    .cw-subtitle {
        font-size: 12px;
    }

    .desktop-area {
        padding: 12px;
    }
}

@media (min-width: 1024px) {
    .cw-features {
        grid-template-columns: repeat(3, 1fr);
    }
}