/* 1. Global Settings & Variables */
:root {
    --bg-color: #141414;
    --card-color: rgba(30, 30, 30, 0.7);
    --text-color: #e5e5e5;
    --text-muted: #808080;
    --border-color: #303030;
    --accent-color: #E50914; /* Netflix Red */
    --success-color: #00b300;
    --sidebar-width: 240px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.7;
    background-image: linear-gradient(35deg, #101010 0%, #181818 50%, #101010 100%);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 2. Layout: Sidebar + Main Content */

.sidebar {
    width: var(--sidebar-width);
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    padding: 25px 20px;
    background: rgba(20, 20, 20, 0.85);
    backdrop-filter: blur(10px);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.content {
    margin-left: var(--sidebar-width);
    padding: 30px 40px;
}

/* 3. Sidebar Elements */

.sidebar header {
    padding-bottom: 20px;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.sidebar header h1 {
    font-size: 1.8em;
    font-weight: 700;
    color: var(--accent-color);
}

.sidebar header p {
    font-size: 1em;
    color: var(--text-muted);
}

.nav-menu {
    display: flex;
    flex-direction: column;
    gap: 10px;
    flex-grow: 1;
}

.nav-menu .nav-link {
    font-size: 0.95em;
    font-weight: 500;
    color: var(--text-muted);
    text-decoration: none;
    padding: 10px 15px;
    border-radius: 6px;
    transition: all 0.2s ease-in-out;
}

.nav-menu .nav-link:hover {
    background-color: var(--border-color);
    color: var(--text-color);
}

.nav-menu .nav-link.active {
    background-color: var(--accent-color);
    color: #fff;
    font-weight: 600;
}

.sidebar footer {
    font-size: 0.85em;
    color: var(--text-muted);
}

/* 4. Main Content Elements */

.card {
    background-color: var(--card-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 30px;
    padding: 30px;
    backdrop-filter: blur(5px);
    scroll-margin-top: 30px; /* Offset for active nav */
}

h2 {
    font-size: 1.8em;
    font-weight: 600;
    color: #fff;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
    margin-bottom: 20px;
}

h3 {
    font-size: 1.3em;
    font-weight: 600;
    color: var(--text-color);
    margin-top: 25px;
    margin-bottom: 10px;
}

p, li, ol {
    margin-bottom: 15px;
    font-size: 1.05em;
}

ul, ol {
    padding-left: 25px;
}

a {
    color: var(--accent-color);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

img {
    max-width: 100%;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    margin-top: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

/* 5. Code Block & Copy Button */

.code-block-wrapper {
    position: relative;
    margin-top: 15px;
}

.code-block-wrapper pre {
    background-color: #161616;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    overflow-x: auto;
    font-family: 'SFMono-Regular', Consolas, 'Courier New', monospace;
    font-size: 0.9em;
    line-height: 1.5;
    padding-top: 20px; /* Default padding */
}

.copy-button {
    position: absolute;
    top: 10px;
    right: 10px;
    background-color: rgba(50, 50, 50, 0.8);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    border-radius: 6px;
    padding: 6px 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    opacity: 0.7;
}

.copy-button:hover {
    background-color: var(--border-color);
    color: var(--text-color);
    opacity: 1;
}

.copy-button svg {
    width: 16px;
    height: 16px;
    vertical-align: middle;
}

.copy-button.copied {
    background-color: var(--success-color);
    color: #fff;
    opacity: 1;
}

.copy-button .copied-icon {
    display: none;
}

.copy-button.copied .copied-icon {
    display: inline-block;
}

.copy-button.copied .copy-icon {
    display: none;
}


/* 6. Tab Component */

.tab-buttons {
    display: flex;
    border-bottom: 1px solid var(--border-color);
}

.tab-button {
    padding: 10px 15px;
    cursor: pointer;
    border: none;
    background-color: transparent;
    color: var(--text-muted);
    font-family: inherit;
    font-size: 0.95em;
    font-weight: 500;
    border-bottom: 3px solid transparent;
    transition: all 0.2s;
}

.tab-button.active {
    color: var(--text-color);
    border-bottom-color: var(--accent-color);
}

.tab-content {
    display: none;
    padding-top: 1px; /* Fixes layout shift */
}

.tab-content.active {
    display: block;
}

/* Remove margin from code blocks inside tabs */
.tab-content .code-block-wrapper {
    margin-top: 0;
}

.tab-content .code-block-wrapper pre {
    border-top-left-radius: 0;
    border-top-right-radius: 0;
    border-top-color: transparent;
}


/* 7. Responsive (Mobile) */
@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
    
    .sidebar header {
        text-align: center;
    }
    
    .nav-menu {
        flex-direction: row;
        overflow-x: auto;
        padding-bottom: 10px;
    }

    .content {
        margin-left: 0;
        padding: 20px;
    }
    
    .card {
        padding: 20px;
    }
}