@import url('https://fonts.googleapis.com/css2?family=Fredoka:wght@300;400;500;600;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Comfortaa:wght@300;400;500;600;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Fira+Code:wght@400;600&display=swap');

:root {
    --sidebar-width: 300px;
    --bg: #ffffff;
    --panel: #fafafa;
    --sidebar-bg: #f8f8f8;
    --accent-pink: #ffb3d9;
    --accent-yellow: #ffe5b4;
    --accent-green: #b3ffd9;
    --accent-blue: #b3d9ff;
    --accent-purple: #e5b3ff;
    --text: #1a1a1a;
    --muted: #666666;
    --border-color: #2a2a2a;
    --border-width: 5px;
    --border-radius: 30px;
    --code-bg: #f5f5f5;
    --dot-color: #e0e0e0;
}

* {
    box-sizing: border-box;
}

html,
body {
    height: 100%;
}

body {
    margin: 0;
    font-family: 'Fredoka', 'Comfortaa', sans-serif;
    background: var(--bg);
    background-image: radial-gradient(circle, var(--dot-color) 1px, transparent 1px);
    background-size: 20px 20px;
    color: var(--text);
    display: flex;
    height: 100vh;
    overflow: hidden;
    font-weight: 600;
    font-size: 1.1rem;
    cursor: none;
}

.custom-cursor {
    position: fixed;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--text);
    border: 2px solid var(--bg);
    mix-blend-mode: difference;
    pointer-events: none;
    z-index: 99999;
    transform: translate(-50%, -50%);
    transition: transform 0.1s ease, width 0.2s ease, height 0.2s ease, border-radius 0.2s ease;
    box-shadow: 0 0 0 1px var(--text);
}

.custom-cursor::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--text);
    transform: translateY(-50%);
    mix-blend-mode: difference;
    box-shadow: 0 0 0 1px var(--bg);
    transition: width 0.2s ease;
}

.custom-cursor::after {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    width: 2px;
    height: 0;
    background-color: var(--text);
    transform: translateX(-50%);
    mix-blend-mode: difference;
    box-shadow: 0 0 0 1px var(--bg);
    transition: height 0.2s ease;
}

.custom-cursor.pointer {
    width: 20px;
    height: 20px;
    border-radius: 0;
    background-color: transparent;
    border: none;
}

.custom-cursor.pointer::before {
    width: 100%;
}

.custom-cursor.pointer::after {
    height: 100%;
}

.russian-text {
    font-family: 'Comfortaa', sans-serif;
    font-weight: 600;
}

::-webkit-scrollbar {
    width: 16px;
}

::-webkit-scrollbar-track {
    background: var(--bg);
    border-radius: 20px;
    border: 3px solid var(--border-color);
}

::-webkit-scrollbar-thumb {
    background: var(--accent-blue);
    border-radius: 20px;
    border: 3px solid var(--border-color);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-pink);
}

.sidebar {
    width: var(--sidebar-width);
    background: var(--sidebar-bg);
    padding: 35px;
    display: flex;
    flex-direction: column;
    gap: 25px;
    overflow: auto;
    border-right: var(--border-width) solid var(--border-color);
    box-shadow: 8px 0 0 rgba(0, 0, 0, 0.1);
}

.profile-img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    display: block;
    margin: 0 auto;
    border: var(--border-width) solid var(--border-color);
    box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.15);
}

.bio-header h1 {
    font-size: 32px;
    margin: 20px 0 10px 0;
    text-align: center;
    color: var(--text);
    font-weight: 700;
}

.bio-header span {
    display: block;
    text-align: center;
    color: var(--text);
    font-size: 20px;
    font-weight: 700;
}

.bio-details {
    font-size: 18px;
    color: var(--muted);
    text-align: center;
    line-height: 1.8;
    font-weight: 600;
}

.bio-details .muted {
    color: var(--muted);
    margin: 8px 0;
}

.typing-container {
    text-align: left;
    color: var(--text);
    font-size: 20px;
    min-height: 30px;
    margin-top: 15px;
    font-weight: 700;
    background: var(--accent-yellow);
    padding: 10px 15px;
    border-radius: 20px;
    border: var(--border-width) solid var(--border-color);
    display: inline-block;
    align-self: flex-start;
    box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.1);
}

.cursor {
    display: inline-block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--text);
    mix-blend-mode: difference;
    animation: blink 1s step-end infinite;
    vertical-align: middle;
    margin-left: 2px;
}

@keyframes blink {
    50% {
        opacity: 0;
    }
}

.btn,
.menu-btn {
    display: inline-block;
    padding: 15px 25px;
    border-radius: var(--border-radius);
    border: var(--border-width) solid var(--border-color);
    background: var(--panel);
    color: var(--text);
    text-decoration: none;
    font-weight: 700;
    cursor: none;
    transition: all 0.15s ease;
    box-shadow: 0 6px 0 var(--border-color);
    text-align: center;
    font-size: 1.15rem;
}

.btn:hover,
.menu-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 0 var(--border-color);
    background: var(--accent-blue);
    color: var(--text);
}

.btn:active,
.menu-btn:active {
    transform: translateY(6px);
    box-shadow: 0 0 0 var(--border-color);
}

.main-container {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 50px;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    position: relative;
    background: var(--bg);
    background-image: radial-gradient(circle, var(--dot-color) 1px, transparent 1px);
    background-size: 20px 20px;
}

#main-menu {
    display: flex;
    flex-direction: column;
    gap: 30px;
    text-align: center;
    min-width: 320px;
}

.menu-btn {
    font-size: 1.5rem;
    background: var(--accent-green);
    color: var(--text);
    border-color: var(--border-color);
    box-shadow: 0 6px 0 var(--border-color);
    padding: 18px 30px;
    font-weight: 700;
}

.menu-btn:hover {
    background: var(--accent-blue);
    color: var(--text);
    box-shadow: 0 8px 0 var(--border-color);
}

.menu-btn:active {
    box-shadow: 0 0 0 var(--border-color);
}

.markdown-body {
    width: 100%;
    max-width: 1200px;
    background: var(--panel);
    padding: 60px;
    border-radius: var(--border-radius);
    border: var(--border-width) solid var(--border-color);
    color: var(--text);
    box-shadow: 10px 10px 0 rgba(0, 0, 0, 0.15);
    display: block;
    position: relative;
    line-height: 1.8;
    overflow: visible;
}

.markdown-body.active {
    animation: popIn 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes popIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4,
.markdown-body h5,
.markdown-body h6 {
    color: var(--text);
    margin-top: 1.8em;
    margin-bottom: 0.8em;
    font-weight: 700;
    border-radius: 15px;
    padding: 10px 15px;
    background: var(--accent-yellow);
    border: var(--border-width) solid var(--border-color);
    box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.1);
    display: inline-block;
}

.markdown-body h1 {
    font-size: 2.2em;
    border-bottom: none;
    padding: 15px 20px;
}

.markdown-body h2 {
    font-size: 1.8em;
}

.markdown-body h3 {
    font-size: 1.5em;
}

.markdown-body h4 {
    font-size: 1.3em;
}

.markdown-body p {
    margin: 1.2em 0;
    font-weight: 600;
    line-height: 1.8;
    font-size: 1.1rem;
}

.markdown-body ul,
.markdown-body ol {
    margin: 1.2em 0;
    padding-left: 30px;
}

.markdown-body li {
    margin: 0.6em 0;
    font-weight: 600;
    font-size: 1.1rem;
}

.markdown-body a {
    color: var(--text);
    text-decoration: none;
    border-bottom: 3px solid var(--border-color);
    font-weight: 700;
    padding: 2px 4px;
    border-radius: 5px;
    background: var(--accent-yellow);
    transition: all 0.2s ease;
    font-size: 1.1rem;
    cursor: none;
}

.markdown-body a:hover {
    background: var(--accent-pink);
    color: var(--text);
    border-bottom-color: var(--border-color);
}

.markdown-body table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin: 2em 0;
    border-radius: var(--border-radius);
    overflow: hidden;
    border: var(--border-width) solid var(--border-color);
    box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.1);
    background: var(--panel);
}

.markdown-body table thead {
    background: var(--accent-blue);
}

.markdown-body table th {
    padding: 18px 20px;
    text-align: left;
    font-weight: 700;
    color: var(--text);
    border-bottom: var(--border-width) solid var(--border-color);
    border-right: var(--border-width) solid var(--border-color);
    background: var(--accent-blue);
    font-size: 1.15rem;
}

.markdown-body table th:last-child {
    border-right: none;
}

.markdown-body table td {
    padding: 15px 20px;
    border-bottom: var(--border-width) solid var(--border-color);
    border-right: var(--border-width) solid var(--border-color);
    font-weight: 600;
    background: var(--panel);
    font-size: 1.1rem;
}

.markdown-body table td:last-child {
    border-right: none;
}

.markdown-body table tbody tr:last-child td {
    border-bottom: none;
}

.markdown-body table tbody tr:nth-child(even) {
    background: var(--accent-yellow);
}

.markdown-body table tbody tr:nth-child(even) td {
    background: var(--accent-yellow);
}

.markdown-body table tbody tr:hover {
    background: var(--accent-green);
}

.markdown-body table tbody tr:hover td {
    background: var(--accent-green);
}

.markdown-body blockquote {
    border-left: var(--border-width) solid var(--accent-blue);
    padding: 20px 25px;
    margin: 25px 0;
    background: var(--accent-yellow);
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
    color: var(--text);
    font-style: italic;
    border-top: var(--border-width) solid var(--border-color);
    border-right: var(--border-width) solid var(--border-color);
    border-bottom: var(--border-width) solid var(--border-color);
    box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.1);
    font-weight: 600;
    font-size: 1.1rem;
}

.markdown-body pre,
.markdown-body code {
    background: var(--code-bg);
    color: var(--text);
    font-family: 'Fira Code', monospace;
    border-radius: 15px;
    padding: 6px 10px;
    border: 3px solid var(--border-color);
    font-weight: 600;
    box-shadow: 3px 3px 0 rgba(0, 0, 0, 0.1);
    font-size: 1.05rem;
}

.markdown-body pre {
    padding: 25px;
    overflow-x: auto;
    border: var(--border-width) solid var(--border-color);
    box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.1);
}

.markdown-body pre code {
    background: transparent;
    border: none;
    padding: 0;
    box-shadow: none;
}

.markdown-body strong {
    font-weight: 700;
    color: var(--text);
    font-size: 1.1rem;
}

.markdown-body em {
    font-style: italic;
    color: var(--text);
}

.markdown-body hr {
    border: none;
    height: var(--border-width);
    background: var(--border-color);
    margin: 2em 0;
    border-radius: 10px;
}

.markdown-body img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    border: var(--border-width) solid var(--border-color);
    box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.1);
    margin: 1.5em 0;
}

.markdown-body .md-toc {
    background: var(--accent-yellow);
    padding: 25px 30px;
    border-radius: var(--border-radius);
    border: var(--border-width) solid var(--border-color);
    box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.1);
    margin: 2em 0;
    list-style: none;
}

.markdown-body .md-toc li {
    margin: 10px 0;
    font-weight: 700;
    font-size: 1.1rem;
}

.markdown-body .md-toc a {
    color: var(--text);
    text-decoration: none;
    border-bottom: 2px solid var(--border-color);
    background: transparent;
    padding: 0;
    font-weight: 600;
    cursor: none;
}

.markdown-body .md-toc a:hover {
    background: var(--accent-pink);
    color: var(--text);
    padding: 2px 6px;
    border-radius: 5px;
}

.markdown-body .admonition {
    background: var(--accent-blue);
    padding: 20px 25px;
    border-radius: var(--border-radius);
    border: var(--border-width) solid var(--border-color);
    box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.1);
    margin: 1.5em 0;
    font-weight: 600;
    font-size: 1.1rem;
}

.markdown-body .admonition.note {
    background: var(--accent-yellow);
}

.markdown-body mark,
.markdown-body .md-highlight {
    background: var(--accent-yellow);
    color: var(--text);
    padding: 2px 6px;
    border-radius: 5px;
    font-weight: 600;
    border: 2px solid var(--border-color);
}

body.lights-off::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle 150px at var(--cursor-x, 50%) var(--cursor-y, 50%),
            transparent 0px,
            transparent 150px,
            rgba(255, 255, 255, 0.98) 150.5px);
    pointer-events: none;
    z-index: 9999;
    cursor: none;
}

.toggle-lights-btn {
    position: fixed;
    top: 30px;
    right: 30px;
    background: var(--accent-yellow);
    border: var(--border-width) solid var(--border-color);
    border-radius: 50%;
    width: 60px;
    height: 60px;
    cursor: none;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    z-index: 10000;
    box-shadow: 0 6px 0 var(--border-color);
    transition: all 0.15s;
}

.toggle-lights-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 0 var(--border-color);
}

.toggle-lights-btn:active {
    transform: scale(0.95);
    box-shadow: 0 0 0 var(--border-color);
}

.btn[style*="position: absolute"] {
    position: absolute;
    top: 30px;
    left: 30px;
    background: var(--accent-pink);
    z-index: 100;
}

@media (max-width: 768px) {
    body {
        flex-direction: column;
        height: auto;
        overflow: auto;
    }

    .sidebar {
        width: 100%;
        border-right: none;
        border-bottom: var(--border-width) solid var(--border-color);
        padding: 25px;
    }

    .main-container {
        padding: 25px;
    }

    .markdown-body {
        padding: 35px;
    }

    .markdown-body h1 {
        font-size: 1.8em;
    }

    .markdown-body h2 {
        font-size: 1.5em;
    }

    .markdown-body h3 {
        font-size: 1.3em;
    }

    .toggle-lights-btn {
        top: 20px;
        right: 20px;
        width: 50px;
        height: 50px;
        font-size: 24px;
    }
}