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

body {
    font-family: Tahoma, 'MS Sans Serif', sans-serif;
    font-size: 11px;
    background: #5a7fbd;
    overflow-x: hidden;
    margin: 0;
}

/* XP Login Screen */
.xp-login {
    position: fixed;
    inset: 0;
    background: url('assets/wallpaper.png') no-repeat center center;
    background-size: cover;
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 1s ease;
}

.xp-login::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.2);
    z-index: -1;
}

.login-bg {
    width: 100%;
    max-width: 700px;
    text-align: center;
}

.login-header {
    color: white;
    font-size: 20px;
    margin-bottom: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    font-weight: bold;
    text-shadow: 0 3px 6px rgba(0, 0, 0, 0.7);
}

.windows-logo-svg {
    width: 80px;
    height: 80px;
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.5));
}

.login-panel {
    background: linear-gradient(180deg, #ebe7d7 0%, #d6d3ce 100%);
    border: 3px solid;
    border-color: #7d9fd8 #042c5c #042c5c #7d9fd8;
    box-shadow: 0 0 0 1px #5a7fbd, 0 12px 48px rgba(0, 0, 0, 0.6);
    padding: 50px 40px;
    margin: 0 20px;
    border-radius: 8px;
}

.user-icon-img {
    width: 96px;
    height: 96px;
    margin: 0 auto 16px;
    display: block;
    border: 3px solid #ffffff;
    border-radius: 50%;
    background: white;
}

.username-display {
    font-size: 22px;
    font-weight: bold;
    color: #000080;
    margin-bottom: 32px;
    font-family: Tahoma, sans-serif;
    text-shadow: 0 1px 2px rgba(255, 255, 255, 0.5);
}

.login-form {
    text-align: left;
    max-width: 450px;
    margin: 0 auto;
}

.input-group {
    margin-bottom: 20px;
}

.input-group label {
    display: block;
    font-size: 15px;
    color: #000;
    margin-bottom: 6px;
    font-weight: bold;
    text-shadow: 0 1px 1px rgba(255, 255, 255, 0.3);
}

.input-group input {
    width: 100%;
    background: white;
    border: 2px solid;
    border-color: #7d8b99 #dfe3e7 #dfe3e7 #7d8b99;
    box-shadow: inset 1px 1px 2px rgba(0, 0, 0, 0.15);
    padding: 12px 14px;
    font-size: 15px;
    font-family: Tahoma, sans-serif;
    box-sizing: border-box;
    color: #000;
}

.login-btn {
    background: linear-gradient(to bottom, #7dc97d 0%, #5eab5e 100%);
    border: 3px solid;
    border-color: #a5e3a5 #4a8c4a #4a8c4a #a5e3a5;
    border-radius: 6px;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 24px auto 0;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.3);
}

.login-btn:hover {
    background: linear-gradient(to bottom, #8dd98d 0%, #6ebf6e 100%);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.login-btn:active {
    border-color: #4a8c4a #a5e3a5 #a5e3a5 #4a8c4a;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
}

.btn-arrow {
    color: white;
    font-size: 32px;
    font-weight: bold;
}

/* Desktop Background */
.desktop {
    min-height: 100vh;
    background: url('assets/wallpaper.png') no-repeat center center;
    background-size: cover;
    background-attachment: fixed;
    padding: 20px 20px 32px;
    opacity: 0;
    transition: opacity 0.5s ease;
}

/* Taskbar */
.taskbar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 30px;
    background: linear-gradient(to bottom, #245edb 0%, #1941a5 3%, #1941a5 4%, #1035a0 6%, #0d2e8e 8%, #0d2e8e 96%, #2350c6 98%, #3d6bdb 100%);
    border-top: 1px solid #0d36ba;
    display: flex;
    align-items: stretch;
    z-index: 1000;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

.start-btn {
    height: 100%;
    background: linear-gradient(to bottom, #5edc5a 0%, #4cc148 10%, #3fa83c 80%, #389637 100%);
    border: 1px solid;
    border-color: #7eec7a #2d6b2a #2d6b2a #7eec7a;
    border-radius: 0 8px 8px 0;
    padding: 0 12px;
    margin: 2px 6px 2px 4px;
    display: flex;
    align-items: center;
    gap: 6px;
    color: white;
    font-weight: bold;
    font-size: 12px;
    cursor: pointer;
    box-shadow:
        inset 1px 1px 0 rgba(255, 255, 255, 0.4),
        1px 1px 2px rgba(0, 0, 0, 0.4);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.6);
    min-width: 85px;
}

.start-btn:hover {
    background: linear-gradient(to bottom, #6eec6a 0%, #5cdc58 10%, #4cb84c 80%, #42a83e 100%);
}

.start-btn:active {
    background: linear-gradient(to bottom, #3fa83c 0%, #4cc148 80%, #5edc5a 100%);
    border-color: #2d6b2a #7eec7a #7eec7a #2d6b2a;
    box-shadow:
        inset -1px -1px 0 rgba(255, 255, 255, 0.3),
        inset 1px 1px 2px rgba(0, 0, 0, 0.5);
}

.start-icon {
    width: 20px;
    height: 20px;
    filter: drop-shadow(0 1px 1px rgba(0, 0, 0, 0.5));
}

.start-icon img {
    width: 100%;
    height: 100%;
}

.quick-launch {
    display: flex;
    align-items: center;
    gap: 2px;
    padding: 0 4px;
    border-right: 1px solid #0d2e8e;
    border-left: 1px solid #2350c6;
}

.quick-launch-separator {
    width: 2px;
    height: 20px;
    background: linear-gradient(to right, #0d2e8e 0%, #2350c6 100%);
    margin: 0 2px;
}

.quick-launch-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border: 1px solid transparent;
}

.quick-launch-icon:hover {
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.quick-launch-icon:active {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(0, 0, 0, 0.3);
}

.taskbar-items {
    flex: 1;
    display: flex;
    gap: 2px;
    padding: 0 4px;
    align-items: stretch;
}

.taskbar-item {
    height: calc(100% - 4px);
    margin: 2px 0;
    background: linear-gradient(to bottom, #3d8edb 0%, #2573cf 8%, #1f62b5 92%, #1f4e9e 100%);
    border: 1px solid;
    border-color: #6baeff #1a4a8e #1a4a8e #6baeff;
    padding: 0 16px;
    display: flex;
    align-items: center;
    gap: 6px;
    color: white;
    font-size: 11px;
    font-weight: bold;
    max-width: 180px;
    min-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    cursor: pointer;
    box-shadow:
        inset 1px 1px 0 rgba(255, 255, 255, 0.3),
        inset -1px -1px 0 rgba(0, 0, 0, 0.2),
        0 1px 2px rgba(0, 0, 0, 0.2);
    text-shadow: 1px 1px 1px rgba(0, 0, 0, 0.5);
}

.taskbar-item:hover {
    background: linear-gradient(to bottom, #4d9eeb 0%, #3583df 8%, #2f72c5 92%, #2f5eae 100%);
}

.taskbar-item.active {
    background: linear-gradient(to bottom, #1f62b5 0%, #1f4e9e 8%, #1a4a8e 92%, #1a3c7e 100%);
    border-color: #1a4a8e #6baeff #6baeff #1a4a8e;
    box-shadow:
        inset -1px -1px 0 rgba(255, 255, 255, 0.2),
        inset 1px 1px 1px rgba(0, 0, 0, 0.4);
}

.taskbar-item-icon-img {
    width: 16px;
    height: 16px;
    margin-right: 4px;
    vertical-align: middle;
}

.quick-launch-ie-icon {
    width: 20px;
    height: 20px;
}

.system-tray {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0 8px;
    height: 100%;
    background: linear-gradient(to right, rgba(17, 77, 166, 0.4) 0%, rgba(17, 77, 166, 0) 10px);
    border-left: 1px solid rgba(17, 77, 166, 0.6);
    font-size: 11px;
    color: white;
    min-width: 80px;
}

.clock {
    font-family: Tahoma, sans-serif;
    font-size: 11px;
    font-weight: normal;
    text-shadow: 1px 1px 1px rgba(0, 0, 0, 0.7);
    padding: 2px 8px;
    border: 1px solid transparent;
    cursor: pointer;
    user-select: none;
}

.clock:hover {
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

/* Window */
.window {
    position: fixed;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 1100px;
    background: #ece9d8;
    border: 3px solid #0831d9;
    box-shadow: 0 0 0 1px #0831d9, 4px 4px 12px rgba(0, 0, 0, 0.5);
    overflow: hidden;
    border-radius: 8px 8px 0 0;
    will-change: left, top;
}

.window-header {
    background: linear-gradient(to bottom,
        #003d8f 0%, #0048a0 3%, #0058c0 5%, #1068d0 8%,
        #2078e0 15%, #3888f0 50%, #2078e0 85%, #1068d0 92%,
        #0058c0 95%, #0048a0 97%, #003d8f 100%);
    padding: 4px 6px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #002060;
    border-radius: 5px 5px 0 0;
    position: relative;
    user-select: none;
    cursor: grab;
}

.window-header:active { cursor: grabbing; }

.window-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(to right,
        rgba(255, 255, 255, 0.8) 0%, rgba(255, 255, 255, 0.4) 50%, rgba(255, 255, 255, 0.8) 100%);
    border-radius: 5px 5px 0 0;
}

.window-title {
    display: flex;
    align-items: center;
    gap: 8px;
    color: white;
    font-size: 12px;
    font-weight: bold;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.7);
    padding: 2px 4px;
}

.window-title-icon {
    width: 16px;
    height: 16px;
}

.window-controls {
    display: flex;
    gap: 3px;
    padding-right: 2px;
}

.win-btn {
    width: 23px;
    height: 23px;
    background: linear-gradient(to bottom,
        #d6dff7 0%, #b8cef5 8%, #9bb8f0 25%,
        #7da3ea 50%, #5e8de5 75%, #4a7fe0 92%, #3970dc 100%);
    border: 1px solid;
    border-color: #e0ecff #5c95ff #003a9e #7dacff;
    color: #000033;
    font-size: 13px;
    font-weight: bold;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Marlett', 'Courier New', monospace;
    border-radius: 3px;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

.win-btn:hover {
    background: linear-gradient(to bottom,
        #e6efff 0%, #d8e8ff 8%, #bbd8ff 25%,
        #9dc3fa 50%, #7eadf5 75%, #6a9ff0 92%, #5991ec 100%);
}

.win-btn:active {
    background: linear-gradient(to bottom,
        #5991ec 0%, #6a9ff0 8%, #7eadf5 25%,
        #9dc3fa 50%, #bbd8ff 75%, #d8e8ff 92%, #e6efff 100%);
    border-color: #003a9e #e0ecff #e0ecff #003a9e;
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.3);
}

.win-btn.close {
    background: linear-gradient(to bottom,
        #f7d6d6 0%, #f5b8b8 8%, #f09b9b 25%,
        #ea7d7d 50%, #e55e5e 75%, #e04a4a 92%, #dc3939 100%);
    border-color: #ffe0e0 #ff5c5c #9e0000 #ff7d7d;
}

.win-btn.close:hover {
    background: linear-gradient(to bottom,
        #ffe6e6 0%, #ffd8d8 8%, #ffbbbb 25%,
        #ff9d9d 50%, #ff7e7e 75%, #ff6a6a 92%, #ff5959 100%);
}

.win-btn.close:active {
    background: linear-gradient(to bottom,
        #ff5959 0%, #ff6a6a 8%, #ff7e7e 25%,
        #ff9d9d 50%, #ffbbbb 75%, #ffd8d8 92%, #ffe6e6 100%);
    border-color: #9e0000 #ffe0e0 #ffe0e0 #9e0000;
}

/* Menu Bar */
.menu-bar {
    background: #ece9d8;
    padding: 2px 4px;
    display: flex;
    gap: 0;
    border-bottom: 1px solid #ffffff;
    box-shadow: 0 1px 0 #828282;
}

.menu-item {
    padding: 4px 8px;
    font-size: 11px;
    cursor: pointer;
    color: #000;
}

.menu-item:hover {
    background: #316ac5;
    color: white;
    border: 1px solid #184e9e;
    padding: 3px 7px;
}

/* Toolbar */
.toolbar {
    background: #ece9d8;
    padding: 4px;
    display: flex;
    gap: 2px;
    border-bottom: 1px solid #ffffff;
    box-shadow: 0 1px 0 #828282;
    flex-wrap: wrap;
}

.toolbar-btn {
    background: #ece9d8;
    border: 1px solid transparent;
    padding: 4px 8px;
    font-size: 11px;
    cursor: pointer;
    color: #000;
}

.toolbar-btn:hover {
    background: #e3ddc5;
    border-color: #ffffff #000000 #000000 #ffffff;
    box-shadow: inset 1px 1px 0 #dfdfdf, inset -1px -1px 0 #828282;
}

.toolbar-btn:active {
    border-color: #000000 #ffffff #ffffff #000000;
    box-shadow: inset -1px -1px 0 #dfdfdf, inset 1px 1px 0 #828282;
}

.address-bar {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 4px;
}

.address-label {
    font-size: 11px;
    color: #666;
}

.address-bar input {
    flex: 1;
    background: white;
    border: 1px solid;
    border-color: #828282 #ffffff #ffffff #828282;
    box-shadow: inset -1px -1px 0 #dfdfdf, inset 1px 1px 0 #000000;
    padding: 3px 6px;
    font-size: 11px;
    font-family: 'Courier New', monospace;
}

.go-btn {
    background: #ece9d8;
    border: 1px solid;
    border-color: #ffffff #000000 #000000 #ffffff;
    box-shadow: inset 1px 1px 0 #dfdfdf, inset -1px -1px 0 #828282;
    padding: 4px 12px;
    font-size: 11px;
    cursor: pointer;
}

.go-btn:hover { background: #e3ddc5; }

.go-btn:active {
    border-color: #000000 #ffffff #ffffff #000000;
    box-shadow: inset -1px -1px 0 #dfdfdf, inset 1px 1px 0 #828282;
}

/* Window Content */
.window-content {
    background: white;
    min-height: 400px;
    max-height: calc(100vh - 200px);
    overflow-y: auto;
    padding: 20px;
    color: #000;
    font-weight: bold;
}

/* Hero Section */
.hero-section {
    text-align: center;
    padding: 40px 20px;
    position: relative;
}

.hero-logo {
    width: 200px;
    height: auto;
    margin-bottom: 20px;
    opacity: 0.8;
}

.hero-box {
    max-width: 600px;
    margin: 0 auto 30px;
}

.info-panel {
    background: #ece9d8;
    border: 1px solid;
    border-color: #828282 #ffffff #ffffff #828282;
    box-shadow: inset -1px -1px 0 #000000, inset 1px 1px 0 #dfdfdf;
    padding: 20px;
}

.panel-header {
    background: linear-gradient(to right, #0053ee 0%, #4e98dd 50%, #0053ee 100%);
    color: white;
    padding: 4px 12px;
    font-size: 11px;
    font-weight: bold;
    margin: -20px -20px 16px -20px;
}

.title {
    font-size: 56px;
    font-weight: bold;
    color: #000080;
    margin: 12px 0;
    font-family: Tahoma, sans-serif;
}

.subtitle {
    font-size: 22px;
    color: #666;
    margin-bottom: 12px;
    font-family: Tahoma, sans-serif;
}

.description {
    font-size: 16px;
    color: #000;
    line-height: 1.8;
    margin-bottom: 20px;
    font-weight: bold;
}

.button-group {
    display: flex;
    gap: 8px;
    justify-content: center;
}

.xp-button {
    background: #ece9d8;
    border: 1px solid;
    border-color: #ffffff #000000 #000000 #ffffff;
    box-shadow: inset 1px 1px 0 #dfdfdf, inset -1px -1px 0 #828282;
    border-radius: 3px;
    padding: 10px 24px;
    font-size: 13px;
    font-weight: normal;
    cursor: pointer;
    font-family: Tahoma, sans-serif;
    text-decoration: none;
    color: #000;
    display: inline-block;
}

.xp-button:hover { background: #e3ddc5; }

.xp-button:active {
    border-color: #000000 #ffffff #ffffff #000000;
    box-shadow: inset -1px -1px 0 #dfdfdf, inset 1px 1px 0 #828282;
}

.xp-button.primary {
    background: linear-gradient(to bottom, #5eab5e 0%, #3c8d3c 100%);
    color: white;
    border-color: #76c176;
}

.xp-button.primary:hover {
    background: linear-gradient(to bottom, #6ebf6e 0%, #4c9d4c 100%);
}

/* Content Sections */
.content-section {
    margin: 30px 0;
}

.section-title {
    background: linear-gradient(to right, #0053ee 0%, #4e98dd 100%);
    color: white;
    padding: 8px 12px;
    font-size: 11px;
    font-weight: bold;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.panel {
    background: #ece9d8;
    border: 1px solid;
    border-color: #828282 #ffffff #ffffff #828282;
    box-shadow: inset -1px -1px 0 #000000, inset 1px 1px 0 #dfdfdf;
    margin-bottom: 16px;
}

.panel-header-bar {
    background: linear-gradient(to right, #0053ee 0%, #4e98dd 50%, #0053ee 100%);
    color: white;
    padding: 6px 12px;
    font-size: 11px;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 8px;
}

.panel-content {
    padding: 16px;
}

.panel-content h3 {
    color: #000080;
    font-size: 16px;
    margin-bottom: 12px;
    font-family: Tahoma, sans-serif;
}

.panel-content p {
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 12px;
    color: #000;
    font-weight: bold;
}

.panel-content ul {
    margin: 0 0 12px 20px;
    font-size: 14px;
    line-height: 1.8;
    font-weight: bold;
}

/* Steps Grid */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 12px;
    margin-bottom: 20px;
}

.step-panel {
    background: white;
    border: 1px solid;
    border-color: #828282 #ffffff #ffffff #828282;
    box-shadow: inset -1px -1px 0 #000000, inset 1px 1px 0 #dfdfdf;
    padding: 16px;
}

.step-panel:hover { background: #f5f5f5; }

.step-number {
    background: #000080;
    color: white;
    padding: 4px 8px;
    font-size: 11px;
    font-weight: bold;
    display: inline-block;
    margin-bottom: 8px;
}

.step-panel h4 {
    font-size: 14px;
    color: #000;
    margin-bottom: 8px;
    font-weight: bold;
}

.step-panel p {
    font-size: 13px;
    color: #000;
    line-height: 1.7;
    font-weight: bold;
}

/* Contract Section */
.contract-panel {
    display: flex;
    gap: 8px;
    align-items: center;
}

.contract-panel input {
    flex: 1;
    background: white;
    border: 1px solid;
    border-color: #828282 #ffffff #ffffff #828282;
    box-shadow: inset -1px -1px 0 #dfdfdf, inset 1px 1px 0 #000000;
    padding: 6px;
    font-size: 11px;
    font-family: 'Courier New', monospace;
}

/* Links Grid */
.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 12px;
}

.link-panel {
    background: #ece9d8;
    border: 1px solid;
    border-color: #ffffff #000000 #000000 #ffffff;
    box-shadow: inset 1px 1px 0 #dfdfdf, inset -1px -1px 0 #828282;
    padding: 16px;
    text-align: center;
    text-decoration: none;
    color: #000;
    font-weight: normal;
    font-size: 11px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.link-panel:hover { background: #e3ddc5; }

.link-panel:active {
    border-color: #000000 #ffffff #ffffff #000000;
    box-shadow: inset -1px -1px 0 #dfdfdf, inset 1px 1px 0 #828282;
}

/* Footer */
.footer-section { margin-top: 40px; }

.footer-brand {
    font-size: 11px;
    margin-bottom: 12px;
    color: #000080;
    font-weight: bold;
}

.disclaimer {
    font-size: 11px;
    color: #666;
    line-height: 1.5;
    margin-bottom: 12px;
}

.footer-copy {
    font-size: 11px;
    color: #999;
    text-align: center;
    padding-top: 12px;
    border-top: 1px solid #ccc;
}

/* Status Bar */
.status-bar {
    background: #ece9d8;
    border-top: 1px solid #ffffff;
    box-shadow: 0 -1px 0 #828282;
    padding: 3px 4px;
    display: flex;
    gap: 8px;
    font-size: 11px;
    color: #000;
}

.status-item {
    border: 1px solid;
    border-color: #828282 #ffffff #ffffff #828282;
    box-shadow: inset -1px -1px 0 #dfdfdf, inset 1px 1px 0 #000000;
    padding: 2px 6px;
    background: white;
}

/* Scrollbar */
.window-content::-webkit-scrollbar { width: 16px; }
.window-content::-webkit-scrollbar-track { background: #d4d0c8; }
.window-content::-webkit-scrollbar-thumb {
    background: linear-gradient(to bottom, #dfdfdf 0%, #c0c0c0 100%);
    border: 1px outset #fff;
}
.window-content::-webkit-scrollbar-button {
    background: linear-gradient(to bottom, #dfdfdf 0%, #c0c0c0 100%);
    border: 1px outset #fff;
    height: 16px;
}

/* Fullscreen Mode */
.window.fullscreen {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 40px;
    max-width: 100%;
    margin: 0;
    border-radius: 0;
    z-index: 9998;
    transform: none;
    width: 100%;
}

/* Minimized Window */
.window.minimizing {
    transform: scale(0.1) translateX(calc(50vw - 100px)) translateY(calc(50vh + 200px));
    opacity: 0;
}

.window.minimized { display: none; }

.window.restoring {
    animation: restoreWindow 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.window.minimizing, .window.restoring {
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

@keyframes restoreWindow {
    0% { transform: scale(0.7) translateY(50px); opacity: 0; }
    60% { transform: scale(1.02); }
    100% { transform: scale(1); opacity: 1; }
}

.minimized-icon {
    position: fixed;
    bottom: 34px;
    right: 90px;
    height: 26px;
    margin: 2px 0;
    background: linear-gradient(to bottom, #3d8edb 0%, #2573cf 8%, #1f62b5 92%, #1f4e9e 100%);
    border: 1px solid;
    border-color: #6baeff #1a4a8e #1a4a8e #6baeff;
    padding: 0 16px;
    display: none;
    align-items: center;
    gap: 6px;
    color: white;
    font-size: 11px;
    font-weight: bold;
    max-width: 180px;
    min-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    cursor: pointer;
    z-index: 9999;
    box-shadow:
        inset 1px 1px 0 rgba(255, 255, 255, 0.3),
        inset -1px -1px 0 rgba(0, 0, 0, 0.2),
        0 1px 2px rgba(0, 0, 0, 0.2);
    text-shadow: 1px 1px 1px rgba(0, 0, 0, 0.5);
    opacity: 0;
    transform: scale(0.8) translateY(10px);
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.minimized-icon:hover {
    background: linear-gradient(to bottom, #4d9eeb 0%, #3583df 8%, #2f72c5 92%, #2f5eae 100%);
}

.minimized-icon.show {
    display: flex;
    opacity: 1;
    transform: scale(1) translateY(0);
}

#minimizedIcon { right: 90px; }
#minimizedNotepad { right: 340px; }

/* Error Popup */
.error-popup {
    position: fixed;
    background: #ece9d8;
    border: 3px solid;
    border-color: #ffffff #000000 #000000 #ffffff;
    box-shadow: 0 0 0 1px #0831d9, 4px 4px 12px rgba(0, 0, 0, 0.7);
    padding: 0;
    z-index: 10000;
    width: 400px;
    cursor: move;
}

.error-popup-header {
    background: linear-gradient(to right, #0058ee 0%, #4b91ff 50%, #0058ee 100%);
    padding: 3px 8px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: white;
    font-size: 11px;
    font-weight: bold;
}

.error-popup-content {
    padding: 20px;
    display: flex;
    gap: 16px;
    align-items: center;
}

.error-popup-icon {
    width: 64px;
    height: 64px;
    flex-shrink: 0;
}

.error-popup-icon img {
    width: 100%;
    height: 100%;
}

.error-popup-message {
    font-size: 13px;
    color: #000;
    font-weight: bold;
}

.error-popup-button {
    background: #ece9d8;
    border: 1px solid;
    border-color: #ffffff #000000 #000000 #ffffff;
    box-shadow: inset 1px 1px 0 #dfdfdf, inset -1px -1px 0 #828282;
    padding: 6px 24px;
    font-size: 11px;
    cursor: pointer;
    margin: 0 auto 16px;
    display: block;
    min-width: 80px;
}

.error-popup-button:hover { background: #e3ddc5; }

.error-popup-button:active {
    border-color: #000000 #ffffff #ffffff #000000;
    box-shadow: inset -1px -1px 0 #dfdfdf, inset 1px 1px 0 #828282;
}

/* Desktop Icon */
.desktop-icon {
    position: absolute;
    top: 20px;
    left: 20px;
    width: 80px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    padding: 8px;
    border-radius: 4px;
    transition: background 0.2s;
}

.desktop-icon:hover { background: rgba(255, 255, 255, 0.2); }
.desktop-icon:active { background: rgba(51, 153, 255, 0.4); }

.desktop-icon-img {
    width: 48px;
    height: 48px;
    filter: drop-shadow(1px 1px 2px rgba(0, 0, 0, 0.5));
}

.desktop-icon-label {
    color: white;
    font-size: 11px;
    font-weight: bold;
    text-align: center;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.8);
    word-wrap: break-word;
    max-width: 80px;
}

/* Notepad Window */
.notepad-window {
    position: fixed;
    width: 600px;
    height: 500px;
    background: white;
    border: 3px solid #0831d9;
    box-shadow: 0 0 0 1px #5a7fbd, 0 12px 48px rgba(0, 0, 0, 0.6);
    display: flex;
    flex-direction: column;
    z-index: 1000;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}

.notepad-header {
    background: linear-gradient(to right, #0058d6 0%, #3a8de4 50%, #0058d6 100%);
    padding: 3px 8px 3px 3px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: grab;
    border-top-left-radius: 8px;
    border-top-right-radius: 8px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
    position: relative;
}

.notepad-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(to bottom, rgba(255, 255, 255, 0.4) 0%, rgba(255, 255, 255, 0) 100%);
    border-radius: 8px 8px 0 0;
    pointer-events: none;
}

.notepad-menu-bar {
    background: #ece9d8;
    padding: 2px 4px;
    display: flex;
    gap: 10px;
    font-size: 11px;
    border-bottom: 1px solid #919b9c;
}

.notepad-content {
    flex: 1;
    background: white;
    overflow: hidden;
}

.notepad-textarea {
    width: 100%;
    height: 100%;
    border: none;
    outline: none;
    padding: 4px 8px;
    font-family: 'Lucida Console', 'Courier New', monospace;
    font-size: 13px;
    resize: none;
    background: white;
    color: black;
}

.notepad-window.minimizing {
    animation: minimize-window 0.3s ease-out forwards;
}

.notepad-window.restoring {
    animation: restore-window 0.3s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

/* Responsive */
@media (max-width: 768px) {
    .desktop { padding: 10px 10px 40px; }
    .window {
        border-radius: 4px 4px 0 0;
        width: 95vw !important;
        max-width: 95vw;
        left: 2.5vw !important;
        top: 10px !important;
        transform: none !important;
        height: calc(100vh - 50px);
        overflow-y: auto;
    }
    .window-header { cursor: default !important; padding: 8px; }
    .window-title { font-size: 10px; }
    .window-title-icon { width: 14px; height: 14px; }
    .menu-bar, .toolbar { display: none; }
    .hero-section { flex-direction: column; padding: 20px 10px; }
    .title { font-size: 48px !important; }
    .subtitle { font-size: 24px !important; }
    .description { font-size: 14px !important; }
    .button-group { flex-direction: column; width: 100%; }
    .xp-button { width: 100%; font-size: 13px !important; padding: 10px 20px; }
    .steps-grid, .links-grid { grid-template-columns: 1fr !important; }
    .contract-panel { flex-direction: column; gap: 10px; }
    .contract-panel input, .contract-panel button { width: 100%; }
    .taskbar { height: 40px; }
    .taskbar-items { display: none; }
    .notepad-window {
        width: 95vw !important;
        height: 70vh !important;
        left: 2.5vw !important;
        top: 15vh !important;
        transform: none !important;
    }
    .desktop-icon { width: 70px; top: 10px; left: 10px; }
    .desktop-icon-img { width: 40px !important; height: 40px !important; }
    .minimized-icon { display: none !important; }
    .error-popup {
        width: 90vw !important;
        max-width: 350px;
        left: 50% !important;
        top: 50% !important;
        transform: translate(-50%, -50%) !important;
    }
}

@media screen and (max-width: 480px) {
    .title { font-size: 36px !important; }
    .subtitle { font-size: 20px !important; }
    .window {
        border-radius: 0;
        height: 100vh;
        top: 0 !important;
        left: 0 !important;
        width: 100vw !important;
    }
}