:root {
    /* LIGHT THEME (Base: #EDEDED) */
    --bg-base: #EDEDED;
    --bg-surface: rgba(255, 255, 255, 0.65);
    --bg-surface-hover: rgba(255, 255, 255, 0.9);
    --bg-surface-solid: #ffffff;

    --border-subtle: rgba(0, 0, 0, 0.08);
    --border-highlight: rgba(0, 0, 0, 0.2);

    --text-main: #111827;
    --text-muted: #6b7280;
    --accent: #2563eb;
    --accent-glow: rgba(37, 99, 235, 0.15);

    --tag-internal-bg: rgba(234, 179, 8, 0.15);
    --tag-internal-text: #a16207;
    --tag-public-bg: rgba(34, 197, 94, 0.15);
    --tag-public-text: #15803d;

    --blur-md: blur(16px);
    --blur-lg: blur(24px);
}

[data-theme="dark"] {
    /* DARK THEME (Base: #111111) */
    --bg-base: #111111;
    --bg-surface: rgba(30, 30, 32, 0.6);
    --bg-surface-hover: rgba(45, 45, 48, 0.8);
    --bg-surface-solid: #1c1c1e;

    --border-subtle: rgba(255, 255, 255, 0.08);
    --border-highlight: rgba(255, 255, 255, 0.15);

    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --accent: #3b82f6;
    --accent-glow: rgba(59, 130, 246, 0.2);

    --tag-internal-bg: rgba(234, 179, 8, 0.15);
    --tag-internal-text: #fde047;
    --tag-public-bg: rgba(34, 197, 94, 0.15);
    --tag-public-text: #86efac;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
}

body {
    background-color: var(--bg-base);
    color: var(--text-main);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    overflow-y: scroll;
    transition: background-color 0.3s ease, color 0.3s ease;
}

a { cursor: pointer; text-decoration: none; color: inherit; }

/* Premium Glassmorphism Utility */
.glass-panel {
    background: var(--bg-surface);
    backdrop-filter: var(--blur-md);
    -webkit-backdrop-filter: var(--blur-md);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

/* =========================================
 *  TOP NAVIGATION
 *  ========================================= */
.topbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg-surface);
    backdrop-filter: var(--blur-lg);
    -webkit-backdrop-filter: var(--blur-lg);
    border-bottom: 1px solid var(--border-subtle);
    padding: 0 2rem;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.topbar-left { display: flex; align-items: center; gap: 2.5rem; }

.logo {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.3rem;
    letter-spacing: -0.03em;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.35rem;
}
.logo strong { font-weight: 700; }
.logo span { font-weight: 200; color: var(--text-muted); }

.header-segmented-nav {
    display: flex;
    background: var(--bg-surface-solid);
    padding: 4px;
    border-radius: 10px;
    border: 1px solid var(--border-subtle);
    gap: 2px;
}
.header-segment {
    padding: 0.35rem 1.25rem;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.2s;
    display: block;
}
.header-segment:hover { color: var(--text-main); }
.header-segment.active {
    background: var(--bg-surface-hover);
    color: var(--text-main);
    box-shadow: 0 1px 4px rgba(0,0,0,0.05);
    border: 1px solid var(--border-subtle);
}

.search-wrapper { position: relative; width: 320px; }
.search-input {
    width: 100%; background: var(--bg-surface-solid); border: 1px solid var(--border-subtle);
    padding: 0.4rem 1rem 0.4rem 2.2rem; border-radius: 8px; color: var(--text-main);
    font-size: 0.85rem; transition: all 0.2s; outline: none;
}
.search-input:focus { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-glow); }
.search-icon { position: absolute; left: 0.75rem; top: 50%; transform: translateY(-50%); color: var(--text-muted); font-size: 0.9rem;}

.topbar-right { display: flex; align-items: center; gap: 0.75rem; }
.action-btn {
    width: 36px; height: 36px; border-radius: 8px; background: transparent; border: 1px solid transparent;
    color: var(--text-muted); display: flex; align-items: center; justify-content: center;
    cursor: pointer; transition: all 0.2s;
}
.action-btn i { font-size: 1.1rem; }
.action-btn:hover { background: var(--bg-surface-solid); border-color: var(--border-subtle); color: var(--text-main); box-shadow: 0 2px 8px rgba(0,0,0,0.05); }
.user-avatar {
    width: 36px; height: 36px; border-radius: 8px; background: var(--bg-surface-solid);
    border: 1px solid var(--border-subtle); display: flex; align-items: center; justify-content: center;
    font-size: 0.85rem; font-weight: 600; cursor: pointer; color: var(--text-main);
}

/* =========================================
 *  LAYOUT & UTILS
 *  ========================================= */
.container { max-width: 1280px; margin: 0 auto; padding: 2.5rem 2rem; }

.btn-primary { background: var(--accent); color: #fff; border: none; padding: 0.5rem 1.25rem; border-radius: 8px; font-weight: 600; font-size: 0.9rem; cursor: pointer; transition: all 0.2s; box-shadow: 0 4px 12px var(--accent-glow); }
.btn-primary:hover { opacity: 0.9; transform: translateY(-1px); }
.btn-secondary { background: transparent; color: var(--text-main); border: 1px solid var(--border-subtle); padding: 0.5rem 1rem; border-radius: 8px; font-weight: 500; font-size: 0.9rem; cursor: pointer; transition: all 0.2s; }
.btn-secondary:hover { background: var(--bg-surface-hover); }

.badge { font-size: 0.7rem; font-weight: 600; padding: 0.25rem 0.6rem; border-radius: 6px; text-transform: uppercase; letter-spacing: 0.05em; }
.badge.internal { background: var(--tag-internal-bg); color: var(--tag-internal-text); border: 1px solid var(--tag-internal-bg); }
.badge.public { background: var(--tag-public-bg); color: var(--tag-public-text); border: 1px solid var(--tag-public-bg); }
.tech-tag { font-size: 0.75rem; background: var(--bg-surface-solid); border: 1px solid var(--border-subtle); padding: 0.2rem 0.6rem; border-radius: 6px; color: var(--text-muted); }

/* =========================================
 *  CATALOG (INDEX)
 *  ========================================= */
.catalog-grid { display: grid; grid-template-columns: 1fr 320px; gap: 2rem; align-items: start; }
.solutions-feed { display: flex; flex-direction: column; gap: 1.25rem; }
.solution-card { padding: 1.5rem; transition: all 0.2s ease; cursor: pointer; display: flex; flex-direction: column; gap: 1rem; }
.solution-card:hover { border-color: var(--border-highlight); background: var(--bg-surface-hover); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.04); }

.card-header { display: flex; justify-content: space-between; align-items: flex-start; }
.card-title-group { display: flex; gap: 1rem; align-items: center; }
.card-icon { width: 44px; height: 44px; border-radius: 10px; background: var(--bg-surface-solid); display: flex; align-items: center; justify-content: center; font-size: 1.2rem; font-weight: 700; color: var(--accent); border: 1px solid var(--border-subtle); }
.card-title { font-size: 1.15rem; font-weight: 600; color: var(--text-main); margin-bottom: 0.1rem; }
.card-meta-text { font-size: 0.8rem; color: var(--text-muted); }
.card-desc { font-size: 0.95rem; color: var(--text-muted); line-height: 1.5; }

.card-footer { display: flex; justify-content: space-between; align-items: center; border-top: 1px solid var(--border-subtle); padding-top: 1rem; }
.tags-group { display: flex; gap: 0.5rem; }
.stats-group { display: flex; gap: 1rem; font-size: 0.85rem; color: var(--text-muted); font-weight: 500; }
.stat-item { display: flex; align-items: center; gap: 0.3rem; }
.stat-item i { color: var(--accent); }

/* Sidebar */
.sidebar { display: flex; flex-direction: column; gap: 1.5rem; position: sticky; top: 96px; }
.widget { padding: 1.5rem; }
.widget-title { font-size: 0.75rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 1rem; display: flex; align-items: center; gap: 0.5rem; }
.widget-title i { font-size: 1rem; }
.activity-feed { display: flex; flex-direction: column; gap: 1rem; }
.activity-item { display: flex; gap: 0.75rem; font-size: 0.85rem; color: var(--text-muted); align-items: flex-start; }
.activity-avatar { width: 32px; height: 32px; border-radius: 8px; background: var(--bg-surface-solid); border: 1px solid var(--border-subtle); display: flex; align-items: center; justify-content: center; font-size: 0.75rem; font-weight: 600; flex-shrink: 0; color: var(--text-main); }
.activity-item strong { color: var(--text-main); font-weight: 500; }

/* =========================================
 *  DETAIL VIEW & TABS
 *  ========================================= */
.detail-header { margin-bottom: 2rem; display: flex; align-items: center; gap: 1.5rem; }
.detail-icon-large { width: 72px; height: 72px; border-radius: 16px; background: var(--bg-surface-solid); border: 1px solid var(--border-highlight); display: flex; align-items: center; justify-content: center; font-size: 2rem; font-weight: 700; color: var(--accent); box-shadow: 0 8px 24px var(--accent-glow); }
.detail-title { font-size: 1.75rem; font-weight: 700; margin-bottom: 0.25rem; }
.detail-breadcrumbs { font-size: 0.85rem; color: var(--text-muted); display: flex; align-items: center; gap: 0.5rem; margin-bottom: 1.5rem;}
.detail-breadcrumbs a { color: var(--text-main); transition: color 0.2s; }
.detail-breadcrumbs a:hover { color: var(--accent); }

.tab-nav { display: flex; gap: 0.5rem; margin-bottom: 1.5rem; background: var(--bg-surface-solid); padding: 0.3rem; border-radius: 10px; width: fit-content; border: 1px solid var(--border-subtle); }
.tab-btn { padding: 0.5rem 1rem; border-radius: 6px; font-size: 0.9rem; font-weight: 500; color: var(--text-muted); cursor: pointer; transition: all 0.2s; }
.tab-btn:hover { color: var(--text-main); }
.tab-btn.active { background: var(--bg-surface-hover); color: var(--text-main); box-shadow: 0 1px 4px rgba(0,0,0,0.05); border: 1px solid var(--border-subtle); }
.tab-count { display: inline-flex; align-items: center; justify-content: center; background: var(--border-subtle); border-radius: 12px; padding: 0 0.4rem; font-size: 0.7rem; margin-left: 0.4rem; color: var(--text-main); }

.tab-pane { display: none; }
.tab-pane.active { display: block; animation: fadeViewIn 0.3s ease; }
@keyframes fadeViewIn { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; transform: translateY(0); } }

/* =========================================
 *  MARKDOWN CONTENT
 *  ========================================= */
.markdown-container { padding: 2rem; font-size: 0.95rem; line-height: 1.7; }
.markdown-container h1 { font-size: 1.5rem; margin-bottom: 1rem; font-weight: 600; }
.markdown-container h2 { font-size: 1.25rem; margin: 1.5rem 0 1rem; font-weight: 600; }
.markdown-container p { margin-bottom: 1rem; color: var(--text-muted); }
.markdown-container code { background: var(--bg-surface-solid); padding: 0.2rem 0.4rem; border-radius: 4px; font-family: monospace; font-size: 0.85rem; color: var(--text-main); border: 1px solid var(--border-subtle); }
.markdown-container pre { background: var(--bg-surface-solid); padding: 1rem; border-radius: 8px; border: 1px solid var(--border-subtle); overflow-x: auto; margin-bottom: 1rem; }
.markdown-container ul, .markdown-container ol { padding-left: 1.5rem; margin-bottom: 1.5rem; color: var(--text-muted); }
.markdown-container li { margin-bottom: 0.5rem; }

/* =========================================
 *  FILE BROWSER
 *  ========================================= */
.file-browser { border: 1px solid var(--border-subtle); border-radius: 12px; background: var(--bg-surface-solid); overflow: hidden; }
.file-browser-header { background: var(--bg-surface-hover); padding: 0.75rem 1.25rem; border-bottom: 1px solid var(--border-subtle); font-family: monospace; font-size: 0.85rem; color: var(--text-muted); display: flex; align-items: center; gap: 0.75rem; }
.branch-badge { background: var(--tag-public-bg); color: var(--tag-public-text); padding: 0.1rem 0.5rem; border-radius: 4px; border: 1px solid var(--tag-public-bg); font-weight: 600; display: flex; align-items: center; gap: 4px;}

.file-row { display: grid; grid-template-columns: 24px 1fr 120px 100px 40px; gap: 1rem; align-items: center; padding: 0.75rem 1.25rem; border-bottom: 1px solid var(--border-subtle); text-decoration: none; font-size: 0.9rem; transition: background 0.2s; }
.file-row:last-child { border-bottom: none; }
.file-row:hover { background: var(--bg-surface-hover); }
.file-icon { color: var(--text-muted); display: flex; align-items: center; font-size: 1.1rem;}
.file-name { color: var(--text-main); font-weight: 500; transition: color 0.2s; }
.file-row:hover .file-name { color: var(--accent); }
.file-meta { color: var(--text-muted); font-size: 0.85rem; }
.file-action { opacity: 0; color: var(--text-muted); display: flex; justify-content: flex-end; transition: opacity 0.2s; font-size: 1rem;}
.file-row:hover .file-action { opacity: 1; }

/* =========================================
 *  FORUM LIST (COMMUNITY)
 *  ========================================= */
.forum-header-actions { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 1.5rem; }
.forum-list { display: flex; flex-direction: column; gap: 1px; background: var(--border-subtle); border-radius: 12px; overflow: hidden; border: 1px solid var(--border-subtle); }
.forum-thread { background: var(--bg-surface-solid); padding: 1.25rem 1.5rem; display: grid; grid-template-columns: 1fr auto; gap: 2rem; align-items: center; transition: background 0.2s; cursor: pointer; }
.forum-thread:hover { background: var(--bg-surface-hover); }
.thread-title { font-size: 1.05rem; font-weight: 600; color: var(--text-main); margin-bottom: 0.3rem; display: block; }
.forum-thread:hover .thread-title { color: var(--accent); }
.thread-meta { font-size: 0.85rem; color: var(--text-muted); display: flex; gap: 1rem; }
.thread-stats { text-align: right; font-size: 0.85rem; color: var(--text-muted); display: flex; flex-direction: column; gap: 0.2rem; }
.thread-stats strong { color: var(--text-main); font-weight: 500; }

/* =========================================
 *  FORUM THREAD & COMMENTS STYLES
 *  ========================================= */
.comments-section { margin-top: 2rem; }

.comment-input {
    width: 100%;
    background: var(--bg-surface-solid);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: 1rem;
    color: var(--text-main);
    font-family: inherit;
    font-size: 0.95rem;
    resize: none; /* Запрет ручного изменения размера */
    max-height: 35vh; /* Максимальная высота */
    overflow-y: auto; /* Скролл при превышении лимита */
    transition: border-color 0.2s, box-shadow 0.2s;
    outline: none;
    box-sizing: border-box;
}

.comment-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent-glow);
}

/* Custom Scrollbar for Textarea */
.comment-input::-webkit-scrollbar {
    width: 8px;
}
.comment-input::-webkit-scrollbar-track {
    background: transparent;
}
.comment-input::-webkit-scrollbar-thumb {
    background: var(--border-highlight);
    border-radius: 4px;
}
.comment-input::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

#comments-list { display: flex; flex-direction: column; gap: 1rem; }
.comment-item { animation: fadeViewIn 0.3s ease; }

.comment-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    padding: 1.25rem;
    transition: background 0.2s;
}

.comment-card:hover { background: var(--bg-surface-hover); }
.comment-card.highlight-author { border-left: 3px solid var(--accent); }

.comment-header-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.85rem; }
.comment-author { font-weight: 600; color: var(--text-main); display: flex; align-items: center; }
.comment-date { font-size: 0.8rem; color: var(--text-muted); }

.btn-reply {
    background: transparent; border: none; color: var(--text-muted); font-size: 0.85rem;
    font-weight: 500; cursor: pointer; display: flex; align-items: center; gap: 0.3rem; transition: color 0.2s;
}
.btn-reply:hover { color: var(--text-main); }

.comment-text { color: var(--text-main); font-size: 0.95rem; line-height: 1.6; white-space: pre-wrap; }

.comment-children {
    margin-left: 1.5rem; padding-left: 1.5rem; border-left: 2px solid var(--border-subtle);
    margin-top: 1rem; display: flex; flex-direction: column; gap: 1rem;
}

.reply-box {
    margin-top: 1rem; display: none; flex-direction: column; gap: 0.75rem; background: var(--bg-surface-solid);
    padding: 1rem; border-radius: 8px; border: 1px solid var(--border-subtle);
}
.reply-box.active { display: flex; }

/* =========================================
 *  MARKDOWN EDITOR
 *  ========================================= */
.md-editor {
    background: var(--bg-surface-solid); border: 1px solid var(--border-subtle);
    border-radius: 8px; overflow: hidden; transition: border-color 0.2s, box-shadow 0.2s;
    display: flex; flex-direction: column;
}

.md-editor:focus-within { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-glow); }

.md-toolbar {
    display: flex; gap: 0.25rem; padding: 0.4rem 0.5rem; background: var(--bg-surface);
    border-bottom: 1px solid var(--border-subtle); align-items: center;
}

.md-btn {
    background: transparent; border: none; color: var(--text-muted); width: 28px; height: 28px;
    border-radius: 6px; cursor: pointer; display: flex; align-items: center; justify-content: center;
    transition: all 0.2s; font-size: 1rem;
}

.md-btn:hover { background: var(--bg-surface-hover); color: var(--text-main); }

.md-divider { width: 1px; height: 16px; background: var(--border-subtle); margin: 0 0.25rem; }

.md-editor .comment-input { border: none; border-radius: 0; box-shadow: none; margin: 0; display: block; }
.md-editor .comment-input:focus { border: none; box-shadow: none; }

/* =========================================
 *  CODE BLOCKS & COPY BUTTON
 *  ========================================= */
.code-block-wrapper {
    position: relative;
    margin-bottom: 1.5rem;
}

.code-block-wrapper pre {
    margin-bottom: 0;
    padding-top: 3rem; /* Space for the absolute button */
}

.copy-btn {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    color: var(--text-muted);
    border-radius: 6px;
    padding: 0.35rem 0.6rem;
    font-size: 0.75rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.copy-btn:hover {
    color: var(--text-main);
    background: var(--bg-surface-hover);
    border-color: var(--border-highlight);
}