@import url('https://fonts.googleapis.com/css2?family=Alef:wght@400;700&display=swap');

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

:root {
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --bg-dark: #0d1117;
    --bg-darker: #010409;
    --border-color: #30363d;
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --editor-bg: #0d1117;
    --preview-bg: #0d1117;
    --header-bg: #161b22;
}

body {
    font-family: 'Alef', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans', Helvetica, Arial, sans-serif;
    background-color: var(--bg-darker);
    color: var(--text-primary);
    height: 100vh;
    overflow: hidden;
}

.container {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

header {
    background-color: var(--header-bg);
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

header h1 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
}

.toolbar {
    display: flex;
    gap: 0.5rem;
}

.bottom-bar {
    background-color: var(--header-bg);
    padding: 0.75rem 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 2.5rem;
}

.footer-info {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-family: 'Alef', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

.footer-info a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-info a:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    transition: background-color 0.2s, transform 0.1s;
}

button:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
}

button:active {
    transform: translateY(0);
}

.beta-badge {
    display: inline-block;
    background-color: #f59e0b;
    color: #000;
    font-size: 0.625rem;
    font-weight: 700;
    padding: 0.125rem 0.375rem;
    border-radius: 4px;
    margin-left: 0.375rem;
    vertical-align: middle;
    letter-spacing: 0.5px;
}

.main-content {
    display: flex;
    flex: 1;
    overflow: hidden;
}

.editor-pane, .preview-pane {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.editor-pane {
    flex: 1;
    background-color: var(--editor-bg);
    border-right: 1px solid var(--border-color);
}

.preview-pane {
    flex: 1;
    background-color: var(--preview-bg);
}

.pane-header {
    padding: 0.75rem 1rem;
    background-color: var(--header-bg);
    border-bottom: 1px solid var(--border-color);
}

.pane-header h2 {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.editor-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

#markdown-input {
    flex: 1;
    width: 100%;
    padding: 1.5rem;
    background-color: var(--editor-bg);
    color: var(--text-primary);
    border: none;
    outline: none;
    resize: none;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', 'Consolas', 'source-code-pro', monospace;
    font-size: 0.9375rem;
    line-height: 1.6;
    tab-size: 2;
}

#markdown-input::placeholder {
    color: var(--text-secondary);
}

/* Vim mode cursor styles */
#markdown-input.vim-normal {
    caret-color: transparent;
}

#markdown-input.vim-insert {
    caret-color: var(--text-primary);
}

.vim-cursor {
    position: absolute;
    width: 8px;
    height: 1.6em;
    background-color: var(--primary-color);
    pointer-events: none;
    z-index: 10;
    display: none;
    opacity: 0.7;
    animation: vim-cursor-blink 1s infinite;
}

.vim-cursor.active {
    display: block;
}

@keyframes vim-cursor-blink {
    0%, 49% { opacity: 0.7; }
    50%, 100% { opacity: 0; }
}

/* Vim status bar */
.vim-status-bar {
    display: none;
    padding: 0.5rem 1rem;
    background-color: var(--header-bg);
    border-top: 1px solid var(--border-color);
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', 'Consolas', monospace;
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-align: left;
}

.vim-status-bar.active {
    display: block;
}

.vim-status-bar.insert-mode {
    color: #10b981;
}

.vim-status-bar.normal-mode {
    color: var(--primary-color);
}

#preview {
    flex: 1;
    padding: 1.5rem;
    overflow-y: auto;
    overflow-x: hidden;
}

.resizer {
    width: 4px;
    background-color: var(--border-color);
    cursor: col-resize;
    transition: background-color 0.2s;
}

.resizer:hover {
    background-color: var(--primary-color);
}

.resizer.resizing {
    background-color: var(--primary-color);
}

/* Markdown styles */
.markdown-body {
    font-family: 'Alef', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans', Helvetica, Arial, sans-serif;
    line-height: 1.6;
    word-wrap: break-word;
}

.markdown-body h1, .markdown-body h2, .markdown-body h3,
.markdown-body h4, .markdown-body h5, .markdown-body h6 {
    margin-top: 1.5rem;
    margin-bottom: 1rem;
    font-weight: 600;
    line-height: 1.25;
    color: var(--text-primary);
}

.markdown-body h1 {
    font-size: 2rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.3rem;
}

.markdown-body h2 {
    font-size: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.3rem;
}

.markdown-body h3 {
    font-size: 1.25rem;
}

.markdown-body h4 {
    font-size: 1rem;
}

.markdown-body p {
    margin-bottom: 1rem;
}

.markdown-body a {
    color: var(--primary-color);
    text-decoration: none;
}

.markdown-body a:hover {
    text-decoration: underline;
}

.markdown-body ul, .markdown-body ol {
    margin-bottom: 1rem;
    padding-left: 2rem;
}

.markdown-body li {
    margin-bottom: 0.25rem;
}

/* Task list checkboxes */
.markdown-body li.task-list-item {
    list-style-type: none;
    margin-left: -1.5rem;
}

.markdown-body li.task-list-item input[type="checkbox"] {
    margin: 0 0.5em 0.25em 0;
    vertical-align: middle;
    cursor: pointer;
    width: 1em;
    height: 1em;
}

.markdown-body ul.contains-task-list {
    padding-left: 2rem;
}

/* Fallback for checkboxes without proper class names */
.markdown-body li:has(> input[type="checkbox"]) {
    list-style-type: none;
    margin-left: -1.5rem;
}

.markdown-body li > input[type="checkbox"] {
    margin: 0 0.5em 0.25em 0;
    vertical-align: middle;
    cursor: pointer;
    width: 1em;
    height: 1em;
}

.markdown-body code {
    background-color: rgba(110, 118, 129, 0.2);
    padding: 0.2em 0.4em;
    border-radius: 3px;
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 85%;
}

.markdown-body pre {
    background-color: var(--bg-darker);
    padding: 1rem;
    border-radius: 6px;
    overflow-x: auto;
    margin-bottom: 1rem;
}

.markdown-body pre code {
    background-color: transparent;
    padding: 0;
    border-radius: 0;
}

.markdown-body blockquote {
    border-left: 4px solid var(--border-color);
    padding-left: 1rem;
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.markdown-body table {
    border-collapse: collapse;
    width: 100%;
    margin-bottom: 1rem;
}

.markdown-body table th,
.markdown-body table td {
    border: 1px solid var(--border-color);
    padding: 0.5rem;
}

.markdown-body table th {
    background-color: var(--header-bg);
    font-weight: 600;
}

.markdown-body img {
    max-width: 100%;
    height: auto;
    border-radius: 6px;
    margin: 1rem 0;
}

.markdown-body hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 2rem 0;
}

/* Twemoji styling */
img.emoji {
    height: 1.2em;
    width: 1.2em;
    margin: 0 0.05em 0 0.1em;
    vertical-align: -0.2em;
    display: inline-block;
    border-radius: 0;
}

/* Scrollbar styling */
#preview::-webkit-scrollbar,
#markdown-input::-webkit-scrollbar {
    width: 8px;
}

#preview::-webkit-scrollbar-track,
#markdown-input::-webkit-scrollbar-track {
    background: var(--bg-darker);
}

#preview::-webkit-scrollbar-thumb,
#markdown-input::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

#preview::-webkit-scrollbar-thumb:hover,
#markdown-input::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* Responsive design */
@media (max-width: 768px) {
    .main-content {
        flex-direction: column;
    }

    .editor-pane {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }

    .resizer {
        display: none;
    }
}

/* Easter Egg - Confetti Animation */
.confetti {
    position: fixed;
    top: -20px;
    width: 10px;
    height: 10px;
    background-color: #f00;
    animation: confetti-fall 3s linear forwards;
    z-index: 9999;
    pointer-events: none;
}

@keyframes confetti-fall {
    0% {
        transform: translateY(0) rotateZ(0deg);
        opacity: 1;
    }
    100% {
        transform: translateY(calc(100vh + 50px)) rotateZ(720deg);
        opacity: 0;
    }
}

/* Easter Egg - Hearts Confetti Animation */
.heart-confetti {
    position: fixed;
    top: -30px;
    font-size: 20px;
    animation: hearts-fall 4s ease-in forwards;
    z-index: 9999;
    pointer-events: none;
}

@keyframes hearts-fall {
    0% {
        transform: translateY(0) rotateZ(0deg) scale(1);
        opacity: 1;
    }
    50% {
        transform: translateY(50vh) rotateZ(180deg) scale(1.2);
        opacity: 0.8;
    }
    100% {
        transform: translateY(calc(100vh + 50px)) rotateZ(360deg) scale(0.8);
        opacity: 0;
    }
}

/* Easter Egg - Matrix Rain Effect */
#matrix-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 10000;
    background-color: rgba(0, 0, 0, 0.95);
    display: none;
    pointer-events: none;
}

#matrix-canvas.active {
    display: block;
}

.matrix-message {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    color: #00ff00;
    font-family: 'Courier New', monospace;
    font-size: 1.2rem;
    z-index: 10001;
    text-shadow: 0 0 10px #00ff00;
    animation: matrix-pulse 1.5s ease-in-out infinite;
    display: none;
}

.matrix-message.active {
    display: block;
}

@keyframes matrix-pulse {
    0%, 100% {
        opacity: 0.7;
    }
    50% {
        opacity: 1;
    }
}