/* ========================================
   Markdown to PDF Converter - Main Styles
   RETRO WINDOWS 95 EDITION
   ======================================== */

/* CSS Variables - Retro Theme */
:root {
    --primary-color: var(--win95-blue, #000080);
    --primary-hover: var(--win95-blue-light, #1084d0);
    --background: var(--win95-white, #ffffff);
    --surface: var(--win95-gray, #c0c0c0);
    --border: var(--win95-gray-dark, #808080);
    --text-primary: var(--win95-black, #000000);
    --text-secondary: var(--win95-gray-darker, #404040);
    --shadow: none;
    --shadow-lg: none;
    --transition: none; 
}

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'MS Sans Serif', 'Microsoft Sans Serif', Tahoma, Arial, sans-serif;
    color: var(--text-primary);
    background-color: var(--surface);
    line-height: 1.4; /* Tighter line height for retro feel */
    overflow: hidden;
    font-size: 11px; /* Classic Windows 95 font size */
}

.app-container {
    display: none;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

/* Header */
.app-header {
    background-color: var(--surface);
    border-bottom: 2px solid;
    border-bottom-color: var(--win95-white) var(--win95-gray-dark) var(--win95-gray-dark) var(--win95-white);
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4px 8px;
    max-width: 100%;
}

.app-header h1 {
    font-size: 11px;
    font-weight: bold;
    color: var(--text-primary);
    text-transform: none;
}

.header-actions {
    display: flex;
    gap: 4px;
    align-items: center;
}

/* Theme Selector - Retro Dropdown Style */
.theme-selector {
    padding: 2px 4px 2px 2px;
    border: 2px solid;
    border-color: var(--win95-gray-dark) var(--win95-white) var(--win95-white) var(--win95-gray-dark);
    background-color: var(--background);
    color: var(--text-primary);
    font-size: 11px;
    font-family: 'MS Sans Serif', 'Microsoft Sans Serif', Tahoma, Arial, sans-serif;
    cursor: pointer;
    height: 21px;
}

.theme-selector:hover {
    /* No hover effect in Win95 */
}

.theme-selector:focus {
    outline: 1px dotted var(--text-primary);
    outline-offset: -3px;
}

.theme-selector:active {
    border-color: var(--win95-white) var(--win95-gray-dark) var(--win95-gray-dark) var(--win95-white);
}

/* Buttons - Windows 95 Style */
.btn {
    padding: 3px 8px;
    border: 2px solid;
    border-color: var(--win95-white) var(--win95-gray-dark) var(--win95-gray-dark) var(--win95-white);
    background-color: var(--surface);
    font-size: 11px;
    font-weight: normal;
    font-family: 'MS Sans Serif', 'Microsoft Sans Serif', Tahoma, Arial, sans-serif;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    min-width: 75px;
    justify-content: center;
    height: 23px;
}

.btn:hover {
    /* No hover effect in Win95 */
}

.btn:focus {
    outline: 1px dotted var(--text-primary);
    outline-offset: -4px;
}

.btn:active,
.btn.active {
    border-color: var(--win95-gray-dark) var(--win95-white) var(--win95-white) var(--win95-gray-dark);
    padding: 4px 7px 2px 9px; /* Shift content on press */
}

.btn-primary {
    background-color: var(--surface);
    color: var(--text-primary);
    font-weight: bold;
}

.btn-primary:active {
    border-color: var(--win95-gray-dark) var(--win95-white) var(--win95-white) var(--win95-gray-dark);
}

.btn:disabled {
    color: var(--win95-gray-dark);
    text-shadow: 1px 1px 0 var(--win95-white);
    cursor: default;
}

/* Main Content */
.main-content {
    display: grid;
    grid-template-columns: var(--editor-width, 1fr) 6px 1fr;
    gap: 0;
    flex: 1;
    overflow: hidden;
}

/* Panel Styles */
.editor-panel,
.preview-panel {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background-color: var(--surface);
}

.editor-panel {
    grid-column: 1;
}

.preview-panel {
    grid-column: 3;
}

.panel-splitter {
    grid-column: 2;
    cursor: col-resize;
    background-color: var(--win95-gray, var(--surface));
    border-left: 2px solid var(--win95-white);
    border-right: 2px solid var(--win95-gray-dark);
}

.panel-splitter:hover,
.panel-splitter:focus-visible {
    background-color: var(--win95-blue, var(--border));
    outline: none;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4px 8px;
    background-color: var(--surface);
    border-bottom: 2px solid;
    border-bottom-color: var(--win95-white) var(--win95-gray-dark) var(--win95-gray-dark) var(--win95-white);
}

.panel-header h2 {
    font-size: 11px;
    font-weight: bold;
    color: var(--text-primary);
    text-transform: none;
    letter-spacing: 0;
}

.editor-controls {
    display: flex;
    gap: 8px;
    align-items: center;
}

.word-count {
    font-size: 11px;
    color: var(--text-primary);
    padding: 2px 4px;
    background-color: var(--surface);
    border: 2px solid;
    border-color: var(--win95-gray-dark) var(--win95-white) var(--win95-white) var(--win95-gray-dark);
}

.markdown-editor-wrapper {
    position: relative;
    flex: 1;
    min-height: 0;
}

/* Markdown Editor - Retro Textarea Style */
.markdown-editor {
    position: absolute;
    inset: 0;
    padding: 4px;
    border: none;
    border-left: 2px solid var(--win95-gray-dark);
    border-top: 2px solid var(--win95-gray-dark);
    border-right: 2px solid var(--win95-white);
    border-bottom: 2px solid var(--win95-white);
    resize: none;
    font-family: 'Courier New', 'Fixedsys', monospace;
    font-size: 12px;
    line-height: 17px;
    color: var(--text-primary);
    background-color: var(--background);
    overflow-y: scroll;
    margin: 4px;
}

.markdown-editor:focus {
    outline: none;
}

.markdown-editor::placeholder {
    color: var(--border);
    opacity: 1;
}

/* Preview Content */
.preview-content {
    flex: 1;
    padding: 8px;
    overflow-y: scroll;
    background-color: var(--background);
    border: 2px solid;
    border-color: var(--win95-gray-dark) var(--win95-white) var(--win95-white) var(--win95-gray-dark);
    margin: 4px;
}

.simple-preview-scale-wrapper {
    overflow: hidden;
    margin: 0 auto;
}

.simple-preview-page {
    transform-origin: top left;
}

.preview-placeholder {
    color: var(--text-secondary);
    text-align: center;
    margin-top: 16px;
    font-style: italic;
    font-size: 11px;
}

/* Footer */
.app-footer {
    background-color: var(--surface);
    border-top: 2px solid;
    border-top-color: var(--win95-white) var(--win95-gray-dark) var(--win95-gray-dark) var(--win95-white);
    padding: 4px 8px;
    text-align: center;
}

.app-footer p {
    font-size: 11px;
    color: var(--text-primary);
}

/* Retro Scrollbar Styles */
.markdown-editor::-webkit-scrollbar,
.preview-content::-webkit-scrollbar {
    width: 16px;
    height: 16px;
}

.markdown-editor::-webkit-scrollbar-track,
.preview-content::-webkit-scrollbar-track {
    background-color: var(--surface);
    border: 2px solid;
    border-color: var(--win95-gray-dark) var(--win95-white) var(--win95-white) var(--win95-gray-dark);
}

.markdown-editor::-webkit-scrollbar-track {
    cursor: default;
}

.markdown-editor::-webkit-scrollbar-thumb,
.preview-content::-webkit-scrollbar-thumb {
    background-color: var(--surface);
    border: 2px solid;
    border-color: var(--win95-white) var(--win95-gray-dark) var(--win95-gray-dark) var(--win95-white);
}

.markdown-editor::-webkit-scrollbar-thumb {
    cursor: default;
}

.markdown-editor::-webkit-scrollbar-thumb:active,
.preview-content::-webkit-scrollbar-thumb:active {
    border-color: var(--win95-gray-dark) var(--win95-white) var(--win95-white) var(--win95-gray-dark);
}

.markdown-editor::-webkit-scrollbar-button,
.preview-content::-webkit-scrollbar-button {
    background-color: var(--surface);
    border: 2px solid;
    border-color: var(--win95-white) var(--win95-gray-dark) var(--win95-gray-dark) var(--win95-white);
    height: 16px;
    width: 16px;
}

.markdown-editor::-webkit-scrollbar-button {
    cursor: default;
}

.markdown-editor::-webkit-scrollbar-button:active,
.preview-content::-webkit-scrollbar-button:active {
    border-color: var(--win95-gray-dark) var(--win95-white) var(--win95-white) var(--win95-gray-dark);
}

/* Scrollbar arrows */
.markdown-editor::-webkit-scrollbar-button:vertical:decrement,
.preview-content::-webkit-scrollbar-button:vertical:decrement {
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16"><path d="M8 4 L4 8 L12 8 Z" fill="black"/></svg>');
    background-repeat: no-repeat;
    background-position: center;
}

.markdown-editor::-webkit-scrollbar-button:vertical:increment,
.preview-content::-webkit-scrollbar-button:vertical:increment {
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16"><path d="M8 12 L4 8 L12 8 Z" fill="black"/></svg>');
    background-repeat: no-repeat;
    background-position: center;
}

/* Responsive Design */
@media (max-width: 768px) {
    .main-content {
        grid-template-columns: 1fr;
        grid-template-rows: 1fr 1fr;
    }

    .editor-panel {
        grid-column: 1;
        grid-row: 1;
        border-right: none;
        border-bottom: 2px solid var(--border);
    }

    .preview-panel {
        grid-column: 1;
        grid-row: 2;
    }

    .panel-splitter {
        display: none;
    }

    .header-content {
        flex-direction: column;
        gap: 4px;
        align-items: stretch;
        padding: 4px;
    }

    .header-actions {
        flex-wrap: wrap;
        gap: 4px;
    }
    
    .file-controls {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 4px;
        width: 100%;
    }
    
    .file-controls .btn {
        font-size: 11px;
        padding: 3px 4px;
        min-width: auto;
    }

    .app-header h1 {
        font-size: 11px;
        text-align: center;
    }
    
    .theme-selector {
        width: 100%;
        margin: 0;
    }
    
    .btn-primary {
        width: 100%;
    }
    
    .divider {
        display: none;
    }
    
    .panel-header {
        padding: 4px;
        flex-wrap: wrap;
        gap: 4px;
    }
    
    .panel-header h2 {
        font-size: 11px;
    }
    
    .editor-controls {
        gap: 4px;
        flex-wrap: wrap;
    }
    
    .word-count {
        font-size: 11px;
        width: 100%;
        text-align: center;
    }
    
    .markdown-editor {
        font-size: 12px;
        padding: 4px;
    }
    
    .preview-content {
        padding: 8px;
        font-size: 11px;
    }
    
    .app-footer {
        padding: 4px;
    }
    
    .app-footer p {
        font-size: 11px;
    }
}

/* Touch-friendly improvements */
@media (hover: none) and (pointer: coarse) {
    .btn,
    .btn-icon,
    .theme-selector,
    button {
        min-height: 23px;
        min-width: 75px;
    }
    
    .btn {
        padding: 3px 8px;
    }
    
    .markdown-editor {
        font-size: 12px;
    }
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .btn-primary {
        border: 2px solid var(--text-primary);
    }
    
    .markdown-editor,
    .preview-content {
        border: 2px solid var(--text-primary);
    }
}

/* Loading State - Retro Style */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.loading::after {
    content: '...';
}

/* Performance optimizations */
.preview-content img {
    will-change: auto;
    content-visibility: auto;
}

.markdown-editor,
.preview-content {
    contain: layout style paint;
}

/* No smooth scrolling in retro mode */
html {
    scroll-behavior: auto;
}

/* Focus visible for keyboard navigation - Win95 style */
:focus-visible {
    outline: 1px dotted var(--text-primary);
    outline-offset: -3px;
}

/* Remove outline for mouse users */
:focus:not(:focus-visible) {
    outline: none;
}

/* Skip to content link for accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary-color);
    color: var(--background);
    padding: 4px 8px;
    text-decoration: none;
    z-index: 100;
    font-size: 11px;
    border: 2px solid;
    border-color: var(--win95-white) var(--win95-gray-dark) var(--win95-gray-dark) var(--win95-white);
}

.skip-link:focus {
    top: 0;
}

/* Notification/Toast - Windows 95 Style */
.notification {
    position: fixed;
    top: 60px;
    right: 16px;
    padding: 8px 12px;
    background-color: var(--surface);
    border: 2px solid;
    border-color: var(--win95-white) var(--win95-gray-dark) var(--win95-gray-dark) var(--win95-white);
    z-index: 1000;
    font-size: 11px;
    min-width: 200px;
}

.notification.success {
    border-left: 4px solid #008000; /* Win95 green */
}

.notification.error {
    border-left: 4px solid #ff0000; /* Win95 red */
}

.notification.info {
    border-left: 4px solid var(--primary-color);
}

/* Divider - Win95 style */
.divider {
    width: 2px;
    height: 20px;
    background: linear-gradient(to right, var(--win95-gray-dark) 0%, var(--win95-gray-dark) 50%, var(--win95-white) 50%, var(--win95-white) 100%);
    margin: 0 4px;
}

/* File controls */
.file-controls {
    display: flex;
    gap: 4px;
    align-items: center;
}

/* Icon styles (for buttons with icons) */
.btn svg,
.btn img {
    width: 12px;
    height: 12px;
    filter: none;
}

/* Disabled state for buttons */
.btn:disabled,
.btn[disabled] {
    color: var(--win95-gray-dark);
    text-shadow: 1px 1px 0 var(--win95-white);
    cursor: default;
    pointer-events: none;
}

/* Selected/Active state for elements */
.selected,
.active {
    background-color: var(--win95-blue);
    color: var(--win95-white);
}

/* Input fields (if any in main content) */
input[type="text"],
input[type="number"],
input[type="email"],
input[type="password"],
input[type="search"],
textarea {
    border: 2px solid;
    border-color: var(--win95-gray-dark) var(--win95-white) var(--win95-white) var(--win95-gray-dark);
    background-color: var(--background);
    color: var(--text-primary);
    font-family: 'MS Sans Serif', 'Microsoft Sans Serif', Tahoma, Arial, sans-serif;
    font-size: 11px;
    padding: 2px 4px;
}

input[type="text"]:focus,
input[type="number"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
input[type="search"]:focus,
textarea:focus {
    outline: none;
}

/* Checkbox and Radio */
input[type="checkbox"],
input[type="radio"] {
    width: 13px;
    height: 13px;
    border: 2px solid;
    border-color: var(--win95-gray-dark) var(--win95-white) var(--win95-white) var(--win95-gray-dark);
    background-color: var(--background);
    appearance: none;
    -webkit-appearance: none;
    cursor: pointer;
}

input[type="checkbox"]:checked {
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="9" height="9"><path d="M0 4 L3 7 L9 1 L8 0 L3 5 L1 3 Z" fill="black"/></svg>');
    background-repeat: no-repeat;
    background-position: center;
}

input[type="radio"] {
    border-radius: 50%;
}

input[type="radio"]:checked {
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="9" height="9"><circle cx="4.5" cy="4.5" r="3" fill="black"/></svg>');
    background-repeat: no-repeat;
    background-position: center;
}

/* Label styling */
label {
    font-size: 11px;
    font-family: 'MS Sans Serif', 'Microsoft Sans Serif', Tahoma, Arial, sans-serif;
    color: var(--text-primary);
    cursor: default;
}

/* Fieldset - Win95 style */
fieldset {
    border: 2px solid;
    border-color: var(--win95-white) var(--win95-gray-dark) var(--win95-gray-dark) var(--win95-white);
    padding: 8px;
    margin: 8px 0;
}

legend {
    font-size: 11px;
    font-weight: bold;
    padding: 0 4px;
    color: var(--text-primary);
}