/* Jessica Syafaq Muthmaina - Interactive Windows 98 / Y2K Space Desktop Style */

:root {
    /* Windows 98 Classic Base Colors */
    --win-gray: #c0c0c0;
    --win-light: #ffffff;
    --win-mid-gray: #dfdfdf;
    --win-dark-gray: #808080;
    --win-darkest: #0a0a0a;
    
    /* Y2K Futuristic Cyber Accents */
    --cyber-pink: #ff6ab8;
    --cyber-blue: #5ab8ff;
    --cyber-green: #7aff9a;
    --cyber-purple: #9a7aff;
    --cyber-navy: #000080;
    
    /* Fonts */
    --font-pixel-title: 'Silkscreen', monospace;
    --font-pixel-text: 'VT323', monospace;
    --font-mono: 'Share Tech Mono', monospace;
    --font-sans: 'Inter', sans-serif;
}

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

body {
    background-color: #008080; /* Classic Win98 Teal */
    background-image: 
        linear-gradient(rgba(0, 128, 128, 0.9) 0%, rgba(32, 20, 48, 0.4) 100%),
        radial-gradient(circle, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
    background-size: 100% 100%, 20px 20px;
    font-family: var(--font-sans);
    font-size: 13px;
    color: var(--win-darkest);
    overflow: hidden;
    height: 100vh;
    width: 100vw;
    position: relative;
    user-select: none;
}

/* CRT Screen Scanline Effect Overlay */
.crt-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.15) 50%), linear-gradient(90deg, rgba(255, 0, 0, 0.03), rgba(0, 255, 0, 0.01), rgba(0, 0, 255, 0.03));
    background-size: 100% 3px, 3px 100%;
    z-index: 99999;
    pointer-events: none;
    opacity: 0.8;
}

/* Main Desktop Environment */
.desktop {
    width: 100%;
    height: calc(100vh - 40px); /* Height minus taskbar */
    position: relative;
    padding: 20px;
}

/* Desktop Icon Grid (Left Side Column) */
.desktop-grid {
    position: absolute;
    top: 20px;
    left: 20px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    z-index: 5;
}

.desktop-icon {
    width: 76px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    cursor: pointer;
    transition: transform 0.1s ease;
}

.desktop-icon:active {
    transform: scale(0.95);
}

.icon-svg {
    width: 32px;
    height: 32px;
    filter: drop-shadow(1px 2px 0 rgba(0, 0, 0, 0.3));
    margin-bottom: 6px;
}

.icon-label {
    font-family: var(--font-pixel-text);
    font-size: 15px;
    color: var(--win-light);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.9), 0 0 4px var(--cyber-blue);
    word-break: break-all;
    padding: 2px 4px;
    border: 1px solid transparent;
}

.desktop-icon:hover .icon-label {
    background-color: rgba(0, 0, 128, 0.5);
    border: 1px dotted var(--cyber-blue);
}

/* Desktop Ambient ASCII Header */
.desktop-ascii-banner {
    position: absolute;
    top: 20px;
    right: 30px;
    text-align: right;
    pointer-events: none;
    z-index: 1;
    opacity: 0.6;
    font-family: var(--font-mono);
}

.ascii-art {
    font-size: 10px;
    line-height: 1.15;
    color: #aae0ff;
    text-shadow: 0 0 6px rgba(170, 224, 255, 0.9), 0 0 12px rgba(255, 160, 220, 0.5);
}

.ascii-sub {
    font-size: 11px;
    letter-spacing: 2px;
    margin-top: 6px;
    color: var(--cyber-pink);
    text-transform: uppercase;
    text-shadow: 0 0 5px rgba(255, 106, 184, 0.7);
}

/* Windows 98 Retro Window Styles */
.window {
    position: absolute;
    background: var(--win-gray);
    border-top: 2px solid var(--win-light);
    border-left: 2px solid var(--win-light);
    border-right: 2px solid var(--win-darkest);
    border-bottom: 2px solid var(--win-darkest);
    box-shadow: 
        inset 1px 1px 0px var(--win-mid-gray), 
        inset -1px -1px 0px var(--win-dark-gray),
        4px 4px 12px rgba(0, 0, 0, 0.3);
    padding: 3px;
    display: flex;
    flex-direction: column;
    min-width: 250px;
    max-width: 90%;
    transition: transform 0.15s ease, opacity 0.15s ease;
}

/* Active window state (glowing border) */
.window.active-window {
    box-shadow: 
        inset 1px 1px 0px var(--win-light), 
        inset -1px -1px 0px var(--win-dark-gray),
        0px 0px 10px var(--cyber-blue);
}

/* Window Titlebar (Draggable area) */
.title-bar {
    background: linear-gradient(90deg, var(--cyber-navy) 0%, var(--cyber-pink) 100%);
    color: var(--win-light);
    padding: 3px 5px 4px 5px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: move;
}

.title-bar-text {
    font-family: var(--font-pixel-title);
    font-size: 11px;
    letter-spacing: 0.5px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    text-shadow: 1px 1px 0px rgba(0, 0, 0, 0.5);
}

.title-bar-controls {
    display: flex;
    gap: 2px;
}

.tbtn {
    background: var(--win-gray);
    border-top: 1px solid var(--win-light);
    border-left: 1px solid var(--win-light);
    border-right: 1px solid var(--win-darkest);
    border-bottom: 1px solid var(--win-darkest);
    box-shadow: inset 1px 1px 0px var(--win-mid-gray), inset -1px -1px 0px var(--win-dark-gray);
    width: 16px;
    height: 14px;
    font-size: 9px;
    font-weight: bold;
    line-height: 10px;
    color: var(--win-darkest);
    text-align: center;
    cursor: pointer;
    font-family: monospace;
}

.tbtn:active {
    border-top: 1px solid var(--win-darkest);
    border-left: 1px solid var(--win-darkest);
    border-right: 1px solid var(--win-light);
    border-bottom: 1px solid var(--win-light);
    box-shadow: inset 1px 1px 0px var(--win-dark-gray);
    padding: 1px 0 0 1px;
}

.window-body {
    padding: 8px;
    background: var(--win-mid-gray);
    display: flex;
    flex-direction: column;
    gap: 10px;
    flex-grow: 1;
    overflow-y: auto;
}

/* System Properties (sys-layout) styling */
.sys-layout {
    display: flex;
    gap: 15px;
    align-items: center;
    border-bottom: 1px solid var(--win-dark-gray);
    padding-bottom: 10px;
}

.sys-image-container {
    width: 100px;
    height: 100px;
    border-top: 2px solid var(--win-dark-gray);
    border-left: 2px solid var(--win-dark-gray);
    border-right: 2px solid var(--win-light);
    border-bottom: 2px solid var(--win-light);
    background: var(--win-light);
    padding: 3px;
}

.sys-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.sys-details {
    flex-grow: 1;
}

.pixel-heading {
    font-family: var(--font-pixel-title);
    font-size: 12px;
    color: var(--cyber-navy);
    margin-bottom: 6px;
    letter-spacing: 0.5px;
}

.sys-item {
    font-family: var(--font-mono);
    font-size: 12px;
    margin-bottom: 3px;
}

.sys-item strong {
    color: var(--win-dark-gray);
    display: inline-block;
    width: 70px;
}

.sys-fieldset {
    border-top: 2px solid var(--win-dark-gray);
    border-left: 2px solid var(--win-dark-gray);
    border-right: 2px solid var(--win-light);
    border-bottom: 2px solid var(--win-light);
    padding: 10px;
    margin-top: 10px;
}

.sys-fieldset legend {
    font-family: var(--font-pixel-title);
    font-size: 10px;
    padding: 0 6px;
    color: var(--cyber-navy);
}

.tech-list {
    list-style: none;
    font-family: var(--font-mono);
    font-size: 11px;
}

.tech-list li {
    margin-bottom: 4px;
    padding-left: 10px;
    position: relative;
}

.tech-list li::before {
    content: "■";
    position: absolute;
    left: 0;
    color: var(--cyber-pink);
    font-size: 8px;
    top: 1px;
}

.window-footer {
    display: flex;
    justify-content: flex-end;
    margin-top: 10px;
}

.win-btn-default {
    background: var(--win-gray);
    border-top: 1px solid var(--win-light);
    border-left: 1px solid var(--win-light);
    border-right: 1px solid var(--win-darkest);
    border-bottom: 1px solid var(--win-darkest);
    box-shadow: inset 1px 1px 0px var(--win-mid-gray), inset -1px -1px 0px var(--win-dark-gray);
    padding: 4px 16px;
    font-family: var(--font-sans);
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
}

.win-btn-default:active {
    border-top: 1px solid var(--win-darkest);
    border-left: 1px solid var(--win-darkest);
    border-right: 1px solid var(--win-light);
    border-bottom: 1px solid var(--win-light);
    padding: 5px 15px 3px 17px;
}

/* Notepad / Text Reader layouts */
.text-body {
    padding: 0;
    background: var(--win-light);
}

.notepad-menu {
    border-bottom: 1px solid var(--win-dark-gray);
    background: var(--win-gray);
    padding: 3px 8px;
    display: flex;
    gap: 12px;
    font-size: 11px;
}

.notepad-menu span {
    cursor: pointer;
}

.notepad-menu span:hover {
    background: var(--cyber-navy);
    color: var(--win-light);
    padding: 0 4px;
}

.notepad-textarea {
    padding: 12px;
    font-family: var(--font-mono);
    font-size: 12px;
    line-height: 1.6;
    overflow-y: auto;
    max-height: 380px;
}

.notepad-image {
    width: 100%;
    max-height: 200px;
    object-fit: cover;
    border: 1px solid var(--win-darkest);
    margin-bottom: 10px;
}

.notepad-text {
    margin-bottom: 12px;
    text-align: justify;
}

/* WordPad Layout */
.wordpad-toolbar {
    background: var(--win-gray);
    border-bottom: 1px solid var(--win-dark-gray);
    padding: 4px 8px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.toolbar-btn {
    width: 20px;
    height: 18px;
    border: 1px solid transparent;
    text-align: center;
    line-height: 16px;
    font-size: 11px;
    cursor: pointer;
}

.toolbar-btn:hover {
    border: 1px solid var(--win-dark-gray);
    background: var(--win-mid-gray);
}

.toolbar-divider {
    width: 1px;
    height: 14px;
    background: var(--win-dark-gray);
    margin: 0 4px;
}

.toolbar-font-name {
    font-size: 11px;
    font-family: var(--font-sans);
    padding: 0 4px;
    border: 1px solid var(--win-dark-gray);
    background: var(--win-light);
}

.document-content {
    background: var(--win-light);
    padding: 20px;
    overflow-y: auto;
    max-height: 380px;
    border-top: 1px solid var(--win-dark-gray);
    border-left: 1px solid var(--win-dark-gray);
}

.research-banner {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border: 1px solid var(--win-darkest);
    margin-bottom: 15px;
}

.doc-title {
    font-family: var(--font-pixel-title);
    font-size: 14px;
    color: var(--cyber-navy);
    line-height: 1.4;
    margin-bottom: 4px;
}

.doc-meta {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--win-dark-gray);
    margin-bottom: 15px;
}

.doc-paragraph {
    font-family: var(--font-sans);
    font-size: 12px;
    line-height: 1.6;
    margin-bottom: 12px;
}

.doc-formula-box {
    background: #fdfbf7;
    border: 1px solid #d4c5b9;
    border-left: 4px solid #8b0000;
    padding: 12px 16px;
    margin: 15px 0;
    overflow-x: auto;
    box-shadow: inset 0 1px 3px rgba(0,0,0,0.04);
    border-radius: 3px;
}

.formula-label {
    font-family: var(--font-pixel-title);
    font-size: 10px;
    color: #8b0000;
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: bold;
}

.formula-render {
    font-size: 15px;
    color: #111111;
    display: flex;
    justify-content: center;
    padding: 6px 0;
}

/* MathJax CHTML Output Fine-Tuning */
mjx-container[jax="CHTML"][display="true"] {
    margin: 0.5em 0 !important;
    font-size: 110% !important;
}

mjx-container[jax="CHTML"] {
    color: #111122 !important;
}

/* Allan Variance Simulator Styling */
.calc-panel {
    background: var(--win-mid-gray);
    padding: 5px;
}

.canvas-header {
    background: var(--win-dark-gray);
    color: var(--win-light);
    padding: 3px 8px;
    font-size: 11px;
    border-bottom: 1px solid var(--win-darkest);
}

#allan-canvas {
    width: 100%;
    height: 200px;
    background: var(--win-light);
    border: 2px solid var(--win-darkest);
    display: block;
    margin-bottom: 10px;
}

.calc-controls {
    border: 2px solid var(--win-dark-gray);
    padding: 10px;
    margin-bottom: 10px;
}

.calc-controls legend {
    font-family: var(--font-pixel-title);
    font-size: 10px;
    padding: 0 5px;
}

.control-row {
    margin-bottom: 10px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.control-row label {
    font-family: var(--font-mono);
    font-size: 12px;
}

.control-row input[type="range"] {
    width: 100%;
    accent-color: var(--cyber-pink);
    cursor: pointer;
}

.highlight-row {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    border-top: 1px dotted var(--win-dark-gray);
    padding-top: 10px;
    font-family: var(--font-pixel-title);
    font-size: 12px;
}

.neon-badge {
    background: var(--win-darkest);
    color: var(--cyber-green);
    padding: 2px 8px;
    font-family: var(--font-mono);
    font-size: 13px;
    border: 1px solid var(--cyber-green);
    text-shadow: 0 0 3px var(--cyber-green);
}

.calc-buttons {
    display: flex;
    justify-content: center;
}

/* Internet Explorer / Browser layout */
.browser-address-bar {
    background: var(--win-gray);
    border-bottom: 1px solid var(--win-dark-gray);
    padding: 4px 8px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.address-label {
    font-family: var(--font-sans);
    font-weight: bold;
    font-size: 11px;
}

.address-input {
    flex-grow: 1;
    border-top: 1px solid var(--win-dark-gray);
    border-left: 1px solid var(--win-dark-gray);
    border-right: 1px solid var(--win-light);
    border-bottom: 1px solid var(--win-light);
    padding: 2px 6px;
    font-family: var(--font-mono);
    font-size: 11px;
    background: var(--win-light);
    color: var(--win-darkest);
}

.browser-content {
    background: var(--win-light);
    overflow-y: auto;
    max-height: 380px;
    padding: 10px;
}

.browser-banner {
    width: 100%;
    height: auto;
    border: 1px solid var(--win-dark-gray);
    margin-bottom: 12px;
}

.link-card-group {
    border: 1px solid var(--win-dark-gray);
    padding: 10px;
}

.link-card-group legend {
    font-family: var(--font-pixel-title);
    font-size: 10px;
    padding: 0 5px;
}

.web-link-card {
    background: var(--win-mid-gray);
    border: 1px solid var(--win-dark-gray);
    padding: 8px;
    margin-bottom: 10px;
}

.card-desc {
    font-family: var(--font-sans);
    font-size: 11px;
    line-height: 1.4;
    margin: 4px 0 8px 0;
}

.win-link-button {
    display: inline-block;
    background: var(--win-gray);
    border-top: 1px solid var(--win-light);
    border-left: 1px solid var(--win-light);
    border-right: 1px solid var(--win-darkest);
    border-bottom: 1px solid var(--win-darkest);
    padding: 3px 10px;
    font-family: var(--font-pixel-title);
    font-size: 9px;
    color: var(--win-darkest);
    text-decoration: none;
    text-align: center;
}

.win-link-button:active {
    border-top: 1px solid var(--win-darkest);
    border-left: 1px solid var(--win-darkest);
    border-right: 1px solid var(--win-light);
    border-bottom: 1px solid var(--win-light);
}

/* CV Document Scroller */
.cv-scroller {
    max-height: 380px;
    overflow-y: auto;
    padding-right: 5px;
}

.cv-name {
    font-family: var(--font-pixel-title);
    font-size: 16px;
    color: var(--cyber-navy);
}

.cv-contact {
    font-family: var(--font-mono);
    font-size: 11px;
    margin-bottom: 10px;
}

.cv-divider {
    border: none;
    border-top: 2px solid var(--win-dark-gray);
    margin-bottom: 15px;
}

.cv-section-title {
    font-family: var(--font-pixel-title);
    font-size: 12px;
    color: var(--cyber-pink);
    border-bottom: 1px dotted var(--win-dark-gray);
    padding-bottom: 3px;
    margin: 15px 0 8px 0;
}

.cv-item {
    font-family: var(--font-sans);
    font-size: 11px;
    line-height: 1.5;
    margin-bottom: 10px;
}

/* Windows 98 Taskbar Base */
.taskbar {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100vw;
    height: 40px;
    background: var(--win-gray);
    border-top: 2px solid var(--win-light);
    box-shadow: inset 0 1px 0 var(--win-mid-gray);
    display: flex;
    align-items: center;
    padding: 2px 6px;
    gap: 6px;
    z-index: 9999;
}

.start-btn {
    background: var(--win-gray);
    border-top: 2px solid var(--win-light);
    border-left: 2px solid var(--win-light);
    border-right: 2px solid var(--win-darkest);
    border-bottom: 2px solid var(--win-darkest);
    box-shadow: inset 1px 1px 0px var(--win-mid-gray), inset -1px -1px 0px var(--win-dark-gray);
    padding: 3px 10px;
    font-family: var(--font-pixel-title);
    font-size: 12px;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    color: var(--win-darkest);
}

.start-btn:active, .start-btn.active {
    border-top: 2px solid var(--win-darkest);
    border-left: 2px solid var(--win-darkest);
    border-right: 2px solid var(--win-light);
    border-bottom: 2px solid var(--win-light);
    padding: 4px 9px 2px 11px;
}

.start-icon {
    width: 14px;
    height: 14px;
}

.taskbar-divider {
    width: 2px;
    height: 28px;
    border-left: 1px solid var(--win-dark-gray);
    border-right: 1px solid var(--win-light);
    margin: 0 4px;
}

/* Taskbar tabs for minimized/active windows */
.taskbar-tabs {
    flex-grow: 1;
    display: flex;
    gap: 4px;
    height: 28px;
    overflow-x: auto;
}

.task-tab {
    background: var(--win-gray);
    border-top: 2px solid var(--win-light);
    border-left: 2px solid var(--win-light);
    border-right: 2px solid var(--win-darkest);
    border-bottom: 2px solid var(--win-darkest);
    padding: 2px 10px;
    font-family: var(--font-mono);
    font-size: 11px;
    display: flex;
    align-items: center;
    min-width: 100px;
    max-width: 160px;
    cursor: pointer;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    color: var(--win-darkest);
}

.task-tab.active-tab {
    background: var(--win-mid-gray);
    border-top: 2px solid var(--win-darkest);
    border-left: 2px solid var(--win-darkest);
    border-right: 2px solid var(--win-light);
    border-bottom: 2px solid var(--win-light);
    padding: 3px 9px 1px 11px;
    font-weight: bold;
}

/* System Tray (Clock area) */
.system-tray {
    border-top: 2px solid var(--win-dark-gray);
    border-left: 2px solid var(--win-dark-gray);
    border-right: 2px solid var(--win-light);
    border-bottom: 2px solid var(--win-light);
    padding: 2px 10px;
    display: flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-mono);
    font-size: 12px;
    background: var(--win-gray);
}

.tray-icon {
    opacity: 0.8;
}

/* Start Menu Popup styling */
.start-menu {
    position: fixed;
    bottom: 42px;
    left: 6px;
    width: 200px;
    background: var(--win-gray);
    border-top: 2px solid var(--win-light);
    border-left: 2px solid var(--win-light);
    border-right: 2px solid var(--win-darkest);
    border-bottom: 2px solid var(--win-darkest);
    box-shadow: 2px 2px 10px rgba(0, 0, 0, 0.4);
    display: none;
    z-index: 10000;
}

.start-menu.show-menu {
    display: flex;
}

.start-menu-sidebar {
    background: linear-gradient(180deg, var(--cyber-navy) 0%, var(--cyber-pink) 100%);
    width: 28px;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding-bottom: 10px;
}

.sidebar-text {
    transform: rotate(-90deg);
    transform-origin: bottom center;
    color: var(--win-light);
    font-family: var(--font-pixel-title);
    font-size: 14px;
    white-space: nowrap;
    letter-spacing: 1px;
    text-shadow: 1px 1px 0px #000;
}

.start-menu-items {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    padding: 2px;
}

.start-item {
    padding: 6px 12px;
    display: flex;
    align-items: center;
    cursor: pointer;
    font-family: var(--font-mono);
    font-size: 12px;
}

.start-item:hover {
    background: var(--cyber-navy);
    color: var(--win-light);
}

.start-divider {
    border: none;
    border-top: 1px solid var(--win-dark-gray);
    border-bottom: 1px solid var(--win-light);
    margin: 4px 0;
}

/* Custom Scrollbars */
::-webkit-scrollbar {
    width: 16px;
    height: 16px;
    background: var(--win-mid-gray);
    border-left: 1px solid var(--win-dark-gray);
}

::-webkit-scrollbar-thumb {
    background: var(--win-gray);
    border-top: 1px solid var(--win-light);
    border-left: 1px solid var(--win-light);
    border-right: 1px solid var(--win-darkest);
    border-bottom: 1px solid var(--win-darkest);
    box-shadow: inset 1px 1px 0 var(--win-mid-gray), inset -1px -1px 0 var(--win-dark-gray);
}

::-webkit-scrollbar-thumb:active {
    border-top: 1px solid var(--win-darkest);
    border-left: 1px solid var(--win-darkest);
    border-right: 1px solid var(--win-light);
    border-bottom: 1px solid var(--win-light);
}

::-webkit-scrollbar-button {
    display: block;
    background: var(--win-gray);
    border-top: 1px solid var(--win-light);
    border-left: 1px solid var(--win-light);
    border-right: 1px solid var(--win-darkest);
    border-bottom: 1px solid var(--win-darkest);
    width: 16px;
    height: 16px;
}

/* Adjustments for smaller screens */
@media (max-width: 600px) {
    .desktop-ascii-banner {
        display: none;
    }
    .window {
        width: 95% !important;
        left: 2.5% !important;
    }
}

/* Maximized and Minimized states for interactive JS behavior */
.window.maximized-window {
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    height: calc(100vh - 40px) !important;
    z-index: 500 !important;
}
.window.minimized-window {
    display: none !important;
}

/* Retro Adobe Acrobat Reader & LaTeX PDF Reader Styles */
.pdf-window-body {
    background: #505050;
    padding: 0;
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}

.pdf-toolbar {
    background: var(--win-gray);
    border-bottom: 2px solid var(--win-dark-gray);
    padding: 3px 6px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-pixel-text);
    font-size: 13px;
    user-select: none;
    flex-wrap: wrap;
}

.pdf-toolbar-btn {
    background: var(--win-gray);
    border-top: 1px solid var(--win-light);
    border-left: 1px solid var(--win-light);
    border-right: 1px solid var(--win-darkest);
    border-bottom: 1px solid var(--win-darkest);
    padding: 2px 8px;
    font-size: 12px;
    font-weight: bold;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 4px;
}

.pdf-toolbar-btn:active, .pdf-toolbar-btn.active-tab {
    border-top: 1px solid var(--win-darkest);
    border-left: 1px solid var(--win-darkest);
    border-right: 1px solid var(--win-light);
    border-bottom: 1px solid var(--win-light);
    background: #d4d4d4;
}

.pdf-viewer-area {
    background: #3a3a3a;
    flex: 1;
    overflow-y: auto;
    padding: 25px 20px;
    display: flex;
    justify-content: center;
    align-items: flex-start;
}

.pdf-page-sheet {
    background: #ffffff !important;
    color: #111111 !important;
    width: 100%;
    max-width: 620px;
    height: auto !important;
    min-height: max-content;
    box-shadow: 0 8px 30px rgba(0,0,0,0.7);
    padding: 35px 40px;
    font-family: 'Inter', sans-serif;
    font-size: 12px;
    line-height: 1.5;
    box-sizing: border-box;
    margin-bottom: 40px;
}

.pdf-page-sheet a {
    color: #0055cc !important;
    text-decoration: underline;
}

.pdf-page-sheet a:hover {
    color: #003399 !important;
}

.pdf-cv-header {
    text-align: center;
    border-bottom: 2px solid #111;
    padding-bottom: 12px;
    margin-bottom: 16px;
}

.pdf-cv-title {
    font-family: 'Outfit', sans-serif;
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: #111;
    margin-bottom: 4px;
}

.pdf-cv-contact {
    font-size: 11.5px;
    color: #333;
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
    margin-top: 6px;
}

.pdf-cv-contact a {
    color: #0044cc;
    text-decoration: none;
}

.pdf-cv-contact a:hover {
    text-decoration: underline;
}

.pdf-cv-section-heading {
    font-family: 'Outfit', sans-serif;
    font-size: 13.5px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #111;
    border-bottom: 1px solid #333;
    padding-bottom: 3px;
    margin-top: 14px;
    margin-bottom: 8px;
}

.pdf-entry {
    margin-bottom: 10px;
}

.pdf-entry-row {
    display: flex;
    justify-content: space-between;
    font-weight: 600;
}

.pdf-entry-sub {
    font-style: italic;
    color: #444;
}

.pdf-entry-desc {
    margin-top: 3px;
    color: #222;
}

.pdf-tex-code-area {
    width: 100%;
    max-width: 650px;
    background: #1e1e2e;
    color: #a6adc8;
    font-family: 'Fira Code', 'Courier New', monospace;
    font-size: 11px;
    line-height: 1.4;
    padding: 15px;
    border-radius: 4px;
    white-space: pre-wrap;
    word-break: break-all;
    overflow-x: auto;
    border: 1px solid #45475a;
}

/* Winamp Media Player 2.91 Retro Styling */
.winamp-window {
    background: #262626 !important;
    border: 2px solid #555555 !important;
    box-shadow: 4px 4px 15px rgba(0, 0, 0, 0.8) !important;
}

.winamp-title-bar {
    background: linear-gradient(90deg, #000080, #3a6ea5) !important;
    color: #ffffff !important;
    font-family: var(--font-pixel-text) !important;
    font-size: 13px !important;
}

.winamp-body {
    background: #1e1e1e !important;
    padding: 8px !important;
    display: flex !important;
    flex-direction: column !important;
    gap: 8px !important;
}

.winamp-main-rack {
    background: #2a2a2a;
    border: 2px solid #111111;
    padding: 8px;
    border-radius: 2px;
    box-shadow: inset 1px 1px 0 #444, inset -1px -1px 0 #000;
}

.winamp-lcd {
    background: #000000;
    border: 2px solid #333333;
    padding: 6px;
    font-family: var(--font-mono);
    color: #00ff00;
    box-shadow: inset 0 0 8px rgba(0, 255, 0, 0.2);
    margin-bottom: 8px;
}

.lcd-top-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 11px;
    font-weight: bold;
    border-bottom: 1px solid #003300;
    padding-bottom: 3px;
    margin-bottom: 4px;
}

.lcd-time {
    font-size: 16px;
    letter-spacing: 1px;
    color: #00ff00;
    text-shadow: 0 0 5px #00ff00;
}

.lcd-kbps {
    color: #00cc00;
}

.kbps-unit {
    font-size: 9px;
    color: #008800;
    margin-left: 1px;
}

.lcd-stereo {
    background: #003300;
    color: #00ff00;
    padding: 1px 4px;
    font-size: 9px;
    border: 1px solid #00aa00;
}

.lcd-ticker-container {
    overflow: hidden;
    white-space: nowrap;
    margin-bottom: 6px;
    background: #051505;
    padding: 2px 4px;
    border: 1px solid #004400;
}

.lcd-ticker {
    font-size: 11px;
    color: #00ff00;
    text-shadow: 0 0 4px #00ff00;
}

#winamp-spectrum {
    width: 100%;
    height: 28px;
    background: #000000;
    border: 1px solid #003300;
    display: block;
}

.winamp-controls-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 6px;
}

.winamp-btn-group {
    display: flex;
    gap: 3px;
}

.wa-btn {
    background: linear-gradient(180deg, #444444, #222222);
    color: #ffffff;
    border: 1px solid #666;
    font-family: var(--font-pixel-text);
    font-size: 11px;
    font-weight: bold;
    padding: 3px 8px;
    cursor: pointer;
    box-shadow: inset 1px 1px 0 #666, inset -1px -1px 0 #000;
}

.wa-btn:active {
    background: #111111;
    box-shadow: inset 1px 1px 0 #000, inset -1px -1px 0 #444;
}

.wa-btn.wa-play {
    color: #00ff00;
    border-color: #00aa00;
}

.winamp-sliders {
    display: flex;
    gap: 8px;
    align-items: center;
}

.wa-slider-wrap {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.wa-label {
    font-size: 9px;
    color: #aaa;
    font-family: var(--font-mono);
}

.wa-slider-wrap input[type=range], .winamp-seek-wrap input[type=range] {
    accent-color: #00ff00;
    cursor: pointer;
}

.winamp-seek-wrap {
    margin-top: 6px;
}

.winamp-seek-wrap input[type=range] {
    width: 100%;
}

.winamp-playlist-rack {
    background: #00001a;
    border: 2px solid #000044;
    padding: 6px;
    font-family: var(--font-mono);
    color: #00ffff;
}

.playlist-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 10px;
    font-weight: bold;
    color: #00ffff;
    border-bottom: 1px solid #000066;
    padding-bottom: 4px;
    margin-bottom: 6px;
}

.wa-sc-link {
    color: #ff5500;
    text-decoration: none;
    font-size: 10px;
}

.wa-sc-link:hover {
    text-decoration: underline;
}

.playlist-list {
    list-style: none;
    padding: 0;
    margin: 0;
    max-height: 120px;
    overflow-y: auto;
    background: #000010;
    border: 1px solid #000044;
}

.pl-item {
    font-size: 11px;
    padding: 3px 6px;
    cursor: pointer;
    color: #00dddd;
    display: flex;
    justify-content: space-between;
    border-bottom: 1px solid #000022;
}

.pl-item:hover {
    background: #000044;
    color: #ffffff;
}

.pl-item.active {
    background: #000088;
    color: #ffffff;
    font-weight: bold;
}

.pl-dur {
    font-size: 10px;
    color: #00aaaa;
}

.playlist-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 9px;
    color: #00aaaa;
    margin-top: 6px;
}

/* Retro Y2K Apple iPod Touch Styling */
.ipod-window {
    background: #111111 !important;
    border: 2px solid #555555 !important;
    box-shadow: 0 12px 36px rgba(0, 0, 0, 0.8) !important;
    border-radius: 8px !important;
}

.ipod-title-bar {
    background: linear-gradient(180deg, #333333, #111111) !important;
    color: #ffffff !important;
    font-family: var(--font-pixel-text) !important;
}

.ipod-body {
    background: #000000 !important;
    padding: 12px !important;
    display: flex;
    justify-content: center;
}

.ipod-chassis {
    background: linear-gradient(145deg, #e6e6e6, #cccccc, #888888);
    border-radius: 24px;
    padding: 14px;
    width: 100%;
    box-shadow: inset 0 0 10px rgba(255, 255, 255, 0.8), 0 5px 15px rgba(0, 0, 0, 0.5);
    display: flex;
    flex-direction: column;
    align-items: center;
    border: 1px solid #777;
}

.ipod-screen {
    background: #080808;
    border-radius: 12px;
    width: 100%;
    border: 2px solid #222;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: inset 0 0 10px #000;
}

.ipod-header-bar {
    background: linear-gradient(180deg, #555555, #222222);
    color: #ffffff;
    font-family: 'Inter', sans-serif;
    font-size: 10px;
    font-weight: 600;
    padding: 4px 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #444;
}

.ipod-now-playing {
    padding: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    background: linear-gradient(180deg, #181818, #050505);
}

.ipod-artwork-wrap {
    width: 140px;
    height: 140px;
    border-radius: 8px;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.8);
    overflow: hidden;
    margin-bottom: 10px;
    border: 1px solid #444;
    background: #000;
}

.ipod-cover-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.art-y2k-disc {
    text-align: center;
    color: #ffffff;
    font-family: 'Outfit', sans-serif;
}

.art-title {
    font-weight: 900;
    font-size: 22px;
    letter-spacing: 2px;
    text-shadow: 0 0 8px rgba(255, 255, 255, 0.8);
}

.art-artist {
    font-size: 11px;
    letter-spacing: 1px;
    opacity: 0.9;
}

.ipod-track-meta {
    text-align: center;
}

.ipod-song-name {
    color: #ffffff;
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    font-size: 15px;
    margin-bottom: 2px;
}

.ipod-artist-name {
    color: #aaaaaa;
    font-family: 'Inter', sans-serif;
    font-size: 11px;
}

.ipod-sc-container {
    padding: 4px;
    background: #000;
    border-top: 1px solid #222;
}

.ipod-controls-area {
    padding: 10px 14px 14px 14px;
    background: #111111;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.ipod-scrubber {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 10px;
    color: #888888;
}

.ipod-scrubber input[type=range], .ipod-vol-row input[type=range] {
    flex: 1;
    accent-color: #ff007f;
    cursor: pointer;
}

.ipod-btn-row {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
}

.ipod-btn {
    background: linear-gradient(180deg, #333333, #1a1a1a);
    color: #ffffff;
    border: 1px solid #555;
    border-radius: 50%;
    width: 38px;
    height: 38px;
    font-size: 12px;
    font-weight: bold;
    cursor: pointer;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
}

.ipod-btn:active {
    background: #000000;
    transform: scale(0.95);
}

.ipod-btn-play {
    width: 46px;
    height: 46px;
    font-size: 16px;
    background: linear-gradient(180deg, #ff007f, #cc0066);
    border-color: #ff3399;
}

.ipod-vol-row {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
}

.ipod-home-button {
    margin-top: 12px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(145deg, #cccccc, #ffffff, #999999);
    border: 1px solid #777;
    box-shadow: inset 0 0 4px rgba(0,0,0,0.5), 0 2px 4px rgba(0,0,0,0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

/* Figure 1 Embedded Research Simulation Styling */
.research-hero-figure {
    background: #ffffff;
    border: 1px solid #b0b0c0;
    padding: 10px;
    margin: 12px 0 16px 0;
    box-shadow: 2px 2px 10px rgba(0,0,0,0.12);
    border-radius: 4px;
}

.figure-title-bar {
    background: #202030;
    color: #ffffff;
    padding: 6px 10px;
    font-family: var(--font-pixel-text);
    font-size: 11px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-radius: 2px;
    margin-bottom: 8px;
}

.fig-badge {
    background: #ff007f;
    color: #ffffff;
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 9px;
    font-family: var(--font-sans);
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.figure-canvas-container {
    background: #050510;
    border: 1px solid #222;
    padding: 6px;
    border-radius: 4px;
    display: flex;
    justify-content: center;
}

.figure-controls-panel {
    background: #f4f4f8;
    border: 1px solid #d0d0d8;
    padding: 8px 12px;
    margin-top: 8px;
    border-radius: 4px;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
    font-family: var(--font-sans);
    font-size: 11px;
}

.fig-control-group {
    flex: 1;
    min-width: 150px;
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.fig-control-group input[type="range"] {
    accent-color: #8b0000;
    cursor: pointer;
}

.fig-results-group {
    background: #e6f0fa;
    border: 1px solid #7090c0;
    padding: 6px 10px;
    border-radius: 4px;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 100px;
}

.fig-highlight-val {
    color: #8b0000;
    font-family: var(--font-mono);
    font-size: 13px;
    font-weight: 700;
}

/* Paper Figure Container Styling */
.paper-figure-container {
    background: #ffffff;
    border: 1px solid #d0d0d8;
    padding: 10px;
    margin: 12px 0 16px 0;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    border-radius: 4px;
}

.paper-figure-img {
    width: 100%;
    height: auto;
    display: block;
    border: 1px solid #cccccc;
    border-radius: 2px;
}

.figure-caption {
    font-size: 11px;
    color: #333333;
    line-height: 1.45;
    margin-top: 10px;
    padding: 8px 10px;
    border-left: 3.5px solid #8b0000;
    background: #fcfcfd;
    border-radius: 0 4px 4px 0;
}

/* Windows Classic Y2K Lock Screen Overlay */
.lock-screen-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: #002b2b;
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    transition: opacity 0.4s ease, visibility 0.4s ease;
}

.lock-screen-bg-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    z-index: 1;
}

.lock-screen-overlay.unlock-fade {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.lock-screen-box {
    position: relative;
    z-index: 10;
    width: 480px;
    background: var(--win-gray);
    border-top: 2px solid var(--win-light);
    border-left: 2px solid var(--win-light);
    border-right: 2px solid var(--win-darkest);
    border-bottom: 2px solid var(--win-darkest);
    box-shadow: 8px 8px 32px rgba(0,0,0,0.75);
    font-family: var(--font-sans);
}

.lock-screen-header {
    background: linear-gradient(90deg, #000080, #1084d0);
    padding: 8px 12px;
    color: #ffffff;
}

.lock-screen-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.lock-logo-svg {
    width: 28px;
    height: 28px;
}

.lock-brand-text {
    display: flex;
    flex-direction: column;
}

.brand-title {
    font-family: 'Outfit', sans-serif;
    font-weight: 900;
    font-size: 16px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.brand-sub {
    font-size: 10px;
    color: #00ffff;
    letter-spacing: 0.5px;
}

.lock-screen-body {
    padding: 16px;
    display: flex;
    gap: 16px;
    background: var(--win-gray);
}

.lock-user-avatar {
    width: 90px;
    height: 90px;
    border-top: 2px solid var(--win-darkest);
    border-left: 2px solid var(--win-darkest);
    border-right: 2px solid var(--win-light);
    border-bottom: 2px solid var(--win-light);
    background: #000000;
    overflow: hidden;
    flex-shrink: 0;
}

.lock-avatar-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.lock-form-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.lock-welcome-txt {
    font-size: 12px;
    color: var(--win-darkest);
    margin: 0;
}

.lock-instruction-txt {
    font-size: 11px;
    color: #444444;
    margin: 0 0 4px 0;
}

.lock-input-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.lock-input-group label {
    width: 75px;
    font-size: 11px;
    color: var(--win-darkest);
}

.lock-input {
    flex: 1;
    font-size: 11px;
    padding: 3px 6px;
    border-top: 2px solid var(--win-darkest);
    border-left: 2px solid var(--win-darkest);
    border-right: 2px solid var(--win-light);
    border-bottom: 2px solid var(--win-light);
    background: var(--win-light);
    font-family: var(--font-sans);
}

.lock-input[readonly] {
    background: #e4e4e4;
    color: #333;
}

.lock-btn-row {
    margin-top: 8px;
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

.lock-btn {
    min-width: 65px;
    padding: 4px 10px;
    font-size: 11px;
    font-family: var(--font-sans);
    cursor: pointer;
}

.lock-screen-footer {
    background: #dfdfdf;
    border-top: 1px solid var(--win-dark-gray);
    padding: 6px 12px;
    font-size: 10px;
    color: #555555;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* ==========================================================================
   MOBILE & TOUCH-FRIENDLY RESPONSIVE STYLES (iOS, Android, Mobile Viewports)
   ========================================================================== */

@media screen and (max-width: 768px) {
    /* 1. Body & Desktop Container */
    body {
        overflow-x: hidden;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .desktop {
        height: auto;
        min-height: calc(100vh - 40px);
        padding: 10px 10px 60px 10px;
    }

    /* 2. Desktop Icon Grid Layout on Mobile */
    .desktop-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 12px 8px;
        width: 100%;
        margin-bottom: 15px;
    }

    .desktop-icon {
        width: 100%;
        padding: 6px 4px;
        touch-action: manipulation;
    }

    .icon-svg {
        width: 36px;
        height: 36px;
    }

    .icon-label {
        font-size: 11px;
        word-break: break-word;
    }

    /* 3. Ambient ASCII Banner */
    .desktop-ascii-banner {
        width: 100%;
        font-size: 8px;
        overflow-x: hidden;
        padding: 8px;
    }

    .ascii-art {
        font-size: 7px;
        white-space: pre-wrap;
        word-break: break-all;
    }

    /* 4. Mobile Window Behavior & Positioning */
    .window {
        width: calc(100vw - 16px) !important;
        max-width: 100vw !important;
        max-height: calc(85vh - 50px) !important;
        left: 8px !important;
        top: 25px !important;
        margin: 0 auto;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    }

    .window-body {
        max-height: calc(85vh - 90px);
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    .title-bar {
        padding: 6px 8px;
        touch-action: none;
    }

    .title-bar-text {
        font-size: 12px;
    }

    .tbtn {
        width: 22px;
        height: 22px;
        font-size: 11px;
        line-height: 20px;
    }

    /* 5. Mobile Lock Screen Box */
    .lock-screen-box {
        width: calc(100vw - 24px) !important;
        max-width: 440px;
        margin: 0 12px;
    }

    .lock-screen-body {
        flex-direction: column;
        align-items: center;
        padding: 12px;
        gap: 12px;
    }

    .lock-user-avatar {
        width: 70px;
        height: 70px;
    }

    .lock-form-area {
        width: 100%;
    }

    .lock-input-group label {
        width: 65px;
        font-size: 10.5px;
    }

    .lock-btn-row {
        width: 100%;
        justify-content: space-between;
    }

    .lock-btn {
        flex: 1;
        padding: 8px 4px;
        font-size: 11px;
        touch-action: manipulation;
    }

    .lock-screen-footer {
        flex-direction: column;
        gap: 4px;
        text-align: center;
        font-size: 9px;
    }

    /* 6. Mobile Taskbar & Start Menu */
    .taskbar {
        height: 42px;
        padding: 0 4px;
    }

    .start-btn {
        height: 32px;
        padding: 0 10px;
        font-size: 12px;
        touch-action: manipulation;
    }

    .taskbar-tabs {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .taskbar-tab {
        min-width: 80px;
        max-width: 120px;
        height: 30px;
        font-size: 10px;
    }

    .system-tray {
        padding: 0 6px;
        font-size: 10px;
    }

    .start-menu {
        width: 240px;
        bottom: 42px;
        left: 2px;
    }

    /* 7. Mobile Winamp Rack */
    .winamp-window {
        width: calc(100vw - 16px) !important;
    }

    .winamp-lcd {
        flex-direction: column;
        align-items: flex-start;
    }

    .wa-btn {
        min-width: 32px;
        height: 30px;
        font-size: 12px;
    }

    /* 8. Mobile Research & PDF Viewer Layout */
    .paper-figure-container div[style*="grid-template-columns"] {
        grid-template-columns: 1fr !important;
    }

    .pdf-toolbar {
        flex-wrap: wrap;
        gap: 4px;
    }

    .pdf-toolbar-btn {
        padding: 4px 8px;
        font-size: 10px;
    }
}