@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
    --bg-main: #000000;
    --bg-panel: #0a0a0a;
    --bg-hover: #171717;
    --border: #262626;
    --text-main: #ededed;
    --text-muted: #a3a3a3;
    --accent: #ffffff;
    --accent-hover: #e5e5e5;
    --accent-text: #000000;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

/* Navbar */
.navbar {
    background-color: var(--bg-main);
    border-bottom: 1px solid var(--border);
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    z-index: 10;
}
.navbar-brand {
    font-size: 1.15rem;
    font-weight: 700;
    color: white;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.navbar-brand svg {
    width: 20px;
    height: 20px;
    color: white;
}
.search-container {
    flex: 1;
    max-width: 500px;
    margin: 0 2rem;
}
.search-container input {
    width: 100%;
    background: var(--bg-panel);
    border: 1px solid var(--border);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    outline: none;
    transition: border 0.2s, background 0.2s;
    font-size: 0.95rem;
}
.search-container input:focus {
    border-color: #525252;
    background: var(--bg-hover);
}
.navbar-nav {
    display: flex;
    gap: 1rem;
    align-items: center;
}

/* Buttons */
.btn-primary {
    background: var(--accent);
    color: var(--accent-text);
    padding: 0.5rem 1rem;
    border: 1px solid var(--accent);
    border-radius: 6px;
    font-weight: 500;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.btn-primary:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
}
.btn-outline {
    background: transparent;
    color: var(--text-main);
    padding: 0.5rem 1rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-weight: 500;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.btn-outline:hover {
    background: var(--bg-hover);
    border-color: #525252;
}

/* Layout */
.app-container {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Sidebar */
.sidebar {
    width: 280px;
    background-color: var(--bg-main);
    border-right: 1px solid var(--border);
    overflow-y: auto;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}
.sidebar-title {
    font-size: 0.75rem;
    text-transform: uppercase;
    font-weight: 600;
    color: var(--text-muted);
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
    margin-top: 1rem;
}
.sidebar-link {
    display: block;
    padding: 0.4rem 0.75rem;
    color: var(--text-muted);
    text-decoration: none;
    border-radius: 6px;
    font-size: 0.9rem;
    transition: all 0.2s;
    line-height: 1.4;
}
.sidebar-link:hover {
    background-color: var(--bg-hover);
    color: var(--text-main);
}
.sidebar-link.active {
    background-color: var(--bg-hover);
    color: white;
    font-weight: 500;
}

/* Main Content */
.main-content {
    flex: 1;
    overflow-y: auto;
    background-color: var(--bg-main);
    padding: 3rem;
}
.content-wrapper {
    max-width: 800px;
    margin: 0 auto;
}

/* Article Typography */
.article-header {
    border-bottom: 1px solid var(--border);
    padding-bottom: 2rem;
    margin-bottom: 2rem;
}
.article-title {
    font-size: 2.25rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1rem;
    line-height: 1.2;
    letter-spacing: -0.02em;
}
.article-meta {
    color: var(--text-muted);
    font-size: 0.9rem;
}
.article-body {
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--text-main);
}
.article-body h2 {
    color: white;
    font-size: 1.5rem;
    font-weight: 600;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    letter-spacing: -0.01em;
}
.article-body p {
    margin-bottom: 1.25rem;
}
.article-body ul {
    margin-bottom: 1.25rem;
    padding-left: 1.5rem;
}
.article-body li {
    margin-bottom: 0.5rem;
}
.article-body pre {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    padding: 1.25rem;
    border-radius: 8px;
    overflow-x: auto;
    margin-bottom: 1.5rem;
}
.article-body code {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: 0.9em;
    color: #e5e7eb;
}
.article-body p code, .article-body li code {
    background: var(--bg-hover);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    border: 1px solid var(--border);
}

/* Article Navigation */
.article-navigation {
    display: flex;
    justify-content: space-between;
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

.nav-btn {
    display: flex;
    flex-direction: column;
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg-panel);
    text-decoration: none;
    transition: all 0.2s;
    width: 48%;
}

.nav-btn:hover {
    background: var(--bg-hover);
    border-color: #525252;
}

.nav-btn.next {
    align-items: flex-end;
    text-align: right;
}

.nav-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.nav-title {
    color: white;
    font-weight: 500;
    font-size: 1.05rem;
}

/* Home / Grid */
.home-hero {
    text-align: center;
    padding: 2rem 0 3rem;
}
.home-hero h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}
.home-hero p {
    font-size: 1.1rem;
    color: var(--text-muted);
}
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
}
.wiki-card {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.5rem;
    text-decoration: none;
    transition: all 0.2s;
    display: flex;
    flex-direction: column;
}
.wiki-card:hover {
    border-color: #525252;
    background: var(--bg-hover);
}
.wiki-card h3 {
    color: white;
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}
.wiki-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.5;
}

/* Form */
.form-group {
    margin-bottom: 1.5rem;
}
.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-main);
}
.form-group input[type="text"], .form-group input[type="password"], .form-group textarea, .form-group select {
    width: 100%;
    background: var(--bg-main);
    border: 1px solid var(--border);
    color: white;
    padding: 0.6rem 1rem;
    border-radius: 6px;
    outline: none;
    font-family: inherit;
    font-size: 0.95rem;
    transition: border 0.2s;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
    border-color: #525252;
}

/* Chat embed custom placement to ensure it's not hidden */
#tw-cloud-ai-chat-bubble {
    z-index: 9999 !important;
}