/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    width: 100%;
    overflow-x: hidden;
}

:root {
    /* Light mode colors (default) */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #f6f8fa;
    --text-primary: #333;
    --text-secondary: #586069;
    --text-tertiary: #24292e;
    --border-color: #e1e4e8;
    --button-bg: #0366d6;
    --button-hover: #0256b9;
    --button-text: white;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --code-bg: #ffffff;
    --logo-color: #2c3e50;
    --footer-bg: #24292e;
    --footer-text: #ffffff;
    --active-tab-bg: #f1f8ff;
    --active-tab-text: #0366d6;
    --icon-color: #1f2328;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme='light']) {
        /* Dark mode colors */
        --bg-primary: #0d1117;
        --bg-secondary: #161b22;
        --bg-tertiary: #21262d;
        --text-primary: #c9d1d9;
        --text-secondary: #8b949e;
        --text-tertiary: #c9d1d9;
        --border-color: #30363d;
        --button-bg: #238636;
        --button-hover: #2ea043;
        --button-text: #ffffff;
        --shadow-color: rgba(0, 0, 0, 0.3);
        --code-bg: #0d1117;
        --logo-color: #58a6ff;
        --footer-bg: #161b22;
        --footer-text: #c9d1d9;
        --active-tab-bg: #1f6feb;
        --active-tab-text: #ffffff;
        --icon-color: #c9d1d9;
    }
}

/* Manual dark mode */
[data-theme='dark'] {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #21262d;
    --text-primary: #c9d1d9;
    --text-secondary: #8b949e;
    --text-tertiary: #c9d1d9;
    --border-color: #30363d;
    --button-bg: #238636;
    --button-hover: #2ea043;
    --button-text: #ffffff;
    --shadow-color: rgba(0, 0, 0, 0.3);
    --code-bg: #0d1117;
    --logo-color: #58a6ff;
    --footer-bg: #161b22;
    --footer-text: #c9d1d9;
    --active-tab-bg: #1f6feb;
    --active-tab-text: #ffffff;
    --icon-color: #c9d1d9;
}

/* Theme toggle styles */
.theme-toggle {
    background: none;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--icon-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    margin-right: 1rem;
    transition: background-color 0.2s ease;
}

.theme-toggle:hover {
    background-color: var(--bg-tertiary);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
}

/* Show/hide icons based on theme */
.theme-toggle .sun-icon {
    display: none;
}

.theme-toggle .moon-icon {
    display: block;
}

[data-theme='dark'] .theme-toggle .sun-icon {
    display: block;
}

[data-theme='dark'] .theme-toggle .moon-icon {
    display: none;
}

/* Update nav styles */
nav {
    display: flex;
    align-items: center;
    gap: 1rem;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-color: var(--bg-secondary);
}

/* Header styles */
header {
    background-color: var(--bg-primary);
    box-shadow: 0 2px 4px var(--shadow-color);
    padding: 1rem;
    position: sticky;
    top: 0;
    z-index: 100;
    width: 100%;
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo h1 {
    font-size: 1.8rem;
    color: var(--logo-color);
    font-weight: 700;
}

.coffee-link img {
    transition: transform 0.2s ease;
}

.coffee-link img:hover {
    transform: scale(1.05);
}

/* Main content styles */
main {
    flex: 1;
    padding: 2rem;
    background-color: var(--bg-secondary);
    width: 100%;
    overflow-x: hidden;
    min-width: 0;
}

.editor-container {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    width: 100%;
    min-width: 0;
}

.editor-column {
    background: var(--bg-primary);
    border-radius: 8px;
    box-shadow: 0 2px 4px var(--shadow-color);
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 1rem;
    width: 100%;
    min-width: 0;
}

/* Editor content styles */
.editor-content {
    flex: 1;
    position: relative;
}

.editor {
    display: none;
    height: 100%;
}

.editor.active {
    display: block;
    height: 100%;
}

/* Markdown editor specific styles */
.markdown-editor textarea {
    width: 100%;
    height: 100%;
    min-height: 300px;
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.9rem;
    line-height: 1.5;
    resize: vertical;
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

/* CSS editor specific styles */
.css-editor textarea {
    width: 100%;
    height: 100%;
    min-height: 300px;
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.9rem;
    line-height: 1.5;
    resize: vertical;
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

/* HTML editor specific styles */
.html-editor textarea {
    width: 100%;
    height: 100%;
    min-height: 300px;
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.9rem;
    line-height: 1.5;
    resize: vertical;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    cursor: default;
}

/* Rendered preview styles */
.rendered-preview {
    width: 100%;
    height: 100%;
    min-height: 300px;
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--bg-primary);
    overflow-y: auto;
}

/* Read-only styles */
textarea[readonly] {
    background-color: var(--bg-tertiary);
    cursor: default;
}

/* Tab styles */
.editor-tabs {
    display: flex;
    gap: 0.5rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
}

.tab {
    padding: 0.5rem 1rem;
    border: none;
    background: none;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-secondary);
    border-radius: 4px;
    transition: all 0.2s ease;
}

.tab:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.tab.active {
    background-color: var(--active-tab-bg);
    color: var(--active-tab-text);
    font-weight: 500;
}

/* Control panel styles */
.control-panel {
    display: flex;
    gap: 1rem;
    padding: 1rem 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.control-panel button,
.control-panel .upload-button {
    flex: 1;
    min-width: 0; /* Allows buttons to shrink if needed */
}

.control-panel button {
    padding: 0.5rem 1rem;
    background-color: var(--button-bg);
    color: var(--button-text);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: background-color 0.2s ease;
}

.control-panel button:hover {
    background-color: var(--button-hover);
}

/* File upload styles */
.file-input {
    width: 0.1px;
    height: 0.1px;
    opacity: 0;
    overflow: hidden;
    position: absolute;
    z-index: -1;
}

.upload-button {
    padding: 0.5rem 1rem;
    background-color: var(--button-bg);
    color: var(--button-text);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: background-color 0.2s ease;
    display: inline-block;
    text-align: center;
}

.upload-button:hover {
    background-color: var(--button-hover);
}

.upload-button:focus-visible {
    outline: 2px solid var(--button-hover);
    outline-offset: 2px;
}

/* Cheat sheet */
.cheat-sheet {
    padding: 1rem;
    background-color: var(--bg-tertiary);
    border-radius: 4px;
}

.cheat-sheet h3 {
    margin-bottom: 1rem;
    color: var(--text-tertiary);
    font-size: 1.1rem;
}

.cheat-sheet-content {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 0.5rem;
}

.cheat-sheet-content p {
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.85rem;
    color: var(--text-secondary);
    padding: 0.25rem;
    background-color: var(--code-bg);
    border-radius: 3px;
    border: 1px solid var(--border-color);
}

/* Footer styles */
footer {
    background-color: var(--footer-bg);
    color: var(--footer-text);
    text-align: center;
    padding: 1rem;
    margin-top: auto;
}

/* Mobile responsiveness improvements */
@media (max-width: 1024px) {
    .editor-container {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    main {
        padding: 1rem;
    }

    .header-content {
        padding: 0 1rem;
    }
}

@media (max-width: 768px) {
    .editor-tabs {
        flex-wrap: wrap;
    }

    .tab {
        flex: 1;
        min-width: 120px;
        font-size: 0.9rem;
    }

    .control-panel {
        flex-direction: column;
        gap: 0.5rem;
    }

    .control-panel button,
    .upload-button {
        width: 100%;
        padding: 0.75rem;
        font-size: 0.9rem;
    }

    .editor-column {
        padding: 0.75rem;
    }

    textarea {
        font-size: 0.9rem !important;
    }
}

@media (max-width: 480px) {
    body {
        width: 100vw;
    }

    header {
        width: 100vw;
        padding: 0;
    }

    main {
        padding: 0.5rem;
        width: 100vw;
    }

    .header-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
        padding: 1rem;
        width: 100%;
    }

    .editor-container {
        width: 100%;
        margin: 0;
    }

    .editor-column {
        width: 100%;
        margin: 0;
        border-radius: 4px;
    }

    .markdown-editor textarea,
    .css-editor textarea,
    .html-editor textarea {
        width: 100%;
        padding: 0.75rem;
        font-size: 0.85rem !important;
        min-width: 0;
    }

    .cheat-sheet {
        display: none;
    }
}

/* Markdown Guide styles */
.markdown-guide {
    max-width: 1400px;
    margin: 4rem auto;
    padding: 0 2rem;
}

.markdown-guide h2 {
    font-size: 2.5rem;
    color: var(--text-tertiary);
    margin-bottom: 2rem;
    text-align: center;
    grid-column: 1 / -1;
}

.guide-content {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.guide-section {
    background: var(--bg-primary);
    border-radius: 8px;
    padding: 2rem;
    box-shadow: 0 2px 4px var(--shadow-color);
}

.guide-section:first-of-type {
    grid-column: 1 / -1;
}

.guide-section h3 {
    color: var(--text-tertiary);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.guide-section p {
    color: var(--text-primary);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.guide-section ul {
    list-style-type: disc;
    padding-left: 1.5rem;
    margin-bottom: 1rem;
}

.guide-section li {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.guide-section code {
    background-color: var(--bg-tertiary);
    padding: 0.2em 0.4em;
    border-radius: 3px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.9em;
    color: var(--text-primary);
}

.guide-section pre {
    background-color: var(--bg-tertiary);
    padding: 1rem;
    border-radius: 5px;
    overflow-x: auto;
    margin: 1rem 0;
}

.guide-section pre code {
    background-color: transparent;
    padding: 0;
    color: var(--text-primary);
    display: block;
}

/* Responsive adjustments for the guide */
@media (max-width: 1024px) {
    .guide-content {
        grid-template-columns: 1fr;
    }

    .guide-section:first-of-type {
        grid-column: auto;
    }
}

@media (max-width: 768px) {
    .markdown-guide {
        margin: 2rem auto;
        padding: 0 1rem;
    }

    .guide-section {
        padding: 1.5rem;
    }

    .markdown-guide h2 {
        font-size: 2rem;
    }

    .guide-section h3 {
        font-size: 1.3rem;
    }

    .control-panel {
        flex-direction: column;
    }

    .control-panel button,
    .control-panel .upload-button {
        width: 100%;
    }
}