:root {
    --bg-primary: #080c14;
    --bg-surface: rgba(15, 23, 42, 0.7);
    --bg-surface-hover: rgba(30, 41, 59, 0.8);
    --border-subtle: rgba(255, 255, 255, 0.09);
    --border-accent: rgba(56, 189, 248, 0.35);
    
    --accent-color: #38bdf8;
    --accent-glow: rgba(56, 189, 248, 0.25);
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --sidebar-width: 290px;
    --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

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

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* ==========================================================================
   Анимированная фоновая координатная сетка (стиль dttric)
   ========================================================================== */
#animated-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-image: 
        linear-gradient(90deg, rgba(56, 189, 248, 0.07) 1px, transparent 1px),
        linear-gradient(rgba(56, 189, 248, 0.07) 1px, transparent 1px);
    background-size: 44px 44px;
    animation: grid-slide 14s linear infinite;
    pointer-events: none;
    z-index: 0;
}

@keyframes grid-slide {
    0% { background-position: 0 0; }
    100% { background-position: 44px 44px; }
}

@media (prefers-reduced-motion: reduce) {
    #animated-bg {
        animation: none;
    }
}

/* ==========================================================================
   Общая разметка контейнера
   ========================================================================== */
.site-container {
    display: flex;
    min-height: 100vh;
    position: relative;
    z-index: 1;
}

/* ==========================================================================
   Сайдбар (левая панель)
   ========================================================================== */
.sidebar {
    width: var(--sidebar-width);
    min-width: var(--sidebar-width);
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    background: rgba(8, 12, 20, 0.85);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-right: 1px solid var(--border-subtle);
    padding: 2.2rem 1.6rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    overflow-y: auto;
    z-index: 10;
}

.brand-block {
    margin-bottom: 2rem;
}

.brand-title {
    font-size: 2.4rem;
    font-weight: 800;
    letter-spacing: -0.05em;
    color: var(--text-primary);
    margin: 0;
    line-height: 1;
}

.brand-domain {
    color: var(--accent-color);
}

.brand-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    margin-top: 0.6rem;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    color: var(--accent-color);
    background: rgba(56, 189, 248, 0.1);
    border: 1px solid var(--border-accent);
    padding: 0.2rem 0.55rem;
    border-radius: 4px;
}

.brand-badge span {
    font-size: 0.5rem;
    animation: pulse 2s infinite;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 1.8rem;
    flex-grow: 1;
}

.nav-section {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.section-title {
    font-size: 0.8rem;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.06em;
    color: var(--text-muted);
}

.sidebar-empty-notice {
    font-size: 0.82rem;
    color: var(--text-muted);
    font-style: italic;
    padding: 0.2rem 0;
}

.social-row {
    display: flex;
    align-items: center;
    gap: 1.1rem;
    padding: 0.2rem 0;
}

.social-row a {
    color: var(--text-secondary);
    font-size: 1.25rem;
    text-decoration: none;
    transition: color 0.15s ease, transform 0.15s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.social-row a:hover {
    color: var(--accent-color);
    transform: translateY(-2px);
}

.social-row .social-item {
    font-size: 1.25rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* Иконка GitHub в стиле плейсхолдера с анимацией мерцания */
.social-row .social-placeholder-icon {
    color: var(--text-secondary);
    animation: placeholder-glow 2s ease-in-out infinite;
    cursor: not-allowed;
    pointer-events: none;
    user-select: none;
}

/* Четко видимые круглые плейсхолдеры (скелетон) */
.social-row .social-placeholder-circle {
    width: 1.25rem;
    height: 1.25rem;
    border-radius: 50%;
    display: inline-block;
    background-color: rgba(148, 163, 184, 0.35);
    border: 1.5px dashed rgba(148, 163, 184, 0.55);
    cursor: not-allowed;
    pointer-events: none;
    vertical-align: middle;
}

.nav-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.nav-links a {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.15s ease, transform 0.15s ease;
    padding: 0.15rem 0;
}

.nav-links a:hover {
    color: var(--accent-color);
    transform: translateX(3px);
}

.nav-links i {
    font-size: 1.05rem;
    color: var(--text-muted);
    transition: color 0.15s ease;
}

.nav-links a:hover i {
    color: var(--accent-color);
}

.sidebar-footer {
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-subtle);
}

/* ==========================================================================
   Десктопный Дашборд
   ========================================================================== */
.dashboard {
    margin-left: var(--sidebar-width);
    flex-grow: 1;
    padding: 2.2rem 2.8rem;
    display: flex;
    flex-direction: column;
    gap: 1.6rem;
    min-height: 100vh;
}

.btn-outline-cyber {
    background: transparent;
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    padding: 0.25rem 0.6rem;
    border-radius: 6px;
    transition: all 0.2s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.btn-outline-cyber:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
    background: rgba(56, 189, 248, 0.08);
}

/* ==========================================================================
   Сетка карточек дашборда
   ========================================================================== */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1.8fr 1.2fr;
    gap: 1.6rem;
    align-items: start;
}

.dashboard-card {
    background: var(--bg-surface);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
    transition: border-color 0.2s ease;
}

.dashboard-card:hover {
    border-color: var(--border-accent);
}

.card-header-cyber {
    padding: 1.1rem 1.4rem;
    border-bottom: 1px solid var(--border-subtle);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(15, 23, 42, 0.4);
}

.text-accent {
    color: var(--accent-color);
}

.blog-archive-link {
    color: var(--accent-color);
    text-decoration: none;
    font-size: 0.8rem;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    border: 1px solid var(--border-accent);
    background: rgba(56, 189, 248, 0.08);
    transition: all 0.15s ease;
}

.blog-archive-link:hover {
    background: rgba(56, 189, 248, 0.18);
    color: #fff;
}

/* ==========================================================================
   Издание / Новости / Блог
   ========================================================================== */
.filter-pills {
    display: flex;
    gap: 0.4rem;
}

.filter-btn {
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-muted);
    font-size: 0.76rem;
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.15s ease;
}

.filter-btn:hover {
    color: var(--text-primary);
}

.filter-btn.active {
    color: var(--accent-color);
    background: rgba(56, 189, 248, 0.12);
    border-color: var(--border-accent);
}

.news-list {
    padding: 1.4rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-height: 640px;
    overflow-y: auto;
}

.news-item {
    background: rgba(30, 41, 59, 0.35);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: 1.1rem 1.3rem;
    transition: transform 0.15s ease, border-color 0.15s ease;
    text-decoration: none;
    color: inherit;
    display: block;
}

.news-item:hover {
    transform: translateY(-2px);
    border-color: rgba(56, 189, 248, 0.4);
}

.news-meta {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 0.5rem;
    font-size: 0.76rem;
}

.tag-badge {
    padding: 0.15rem 0.45rem;
    border-radius: 4px;
    font-weight: 600;
    text-transform: uppercase;
}

.tag-release {
    background: rgba(16, 185, 129, 0.15);
    color: #34d399;
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.tag-article {
    background: rgba(168, 85, 247, 0.15);
    color: #c084fc;
    border: 1px solid rgba(168, 85, 247, 0.3);
}

.tag-announcement {
    background: rgba(245, 158, 11, 0.15);
    color: #fbbf24;
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.news-date {
    color: var(--text-muted);
}

.news-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.4rem;
}

.news-summary {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin: 0;
}

/* ==========================================================================
   Боковая секция: API Placeholder
   ========================================================================== */
.dashboard-side-col {
    display: flex;
    flex-direction: column;
    gap: 1.6rem;
}

.card-body-cyber {
    padding: 1.4rem;
}

.api-placeholder,
.empty-feed-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 1.5rem;
    text-align: center;
    border: 1px dashed var(--border-subtle);
    border-radius: 8px;
    background: rgba(8, 12, 20, 0.4);
}

.placeholder-icon {
    font-size: 2.2rem;
    color: var(--accent-color);
    margin-bottom: 0.8rem;
    opacity: 0.85;
}

.placeholder-text {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.3rem;
    letter-spacing: 0.05em;
}

.placeholder-subtext {
    font-size: 0.8rem;
}

/* ==========================================================================
   Утилиты и анимации
   ========================================================================== */
.spin {
    display: inline-block;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* Кастомный тонкий скроллбар */
::-webkit-scrollbar {
    width: 5px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-color);
}

/* ==========================================================================
   Адаптивность для мобильных устройств (< 992px)
   ========================================================================== */
@media screen and (max-width: 991px) {
    /* Тяжелый дашборд полностью скрывается на мобильных экранах */
    .dashboard {
        display: none !important;
    }

    /* Сайдбар занимает всю ширину и становится аккуратным мобильным хабом */
    .sidebar {
        width: 100%;
        min-width: 100%;
        position: static;
        min-height: 100vh;
        height: auto;
        border-right: none;
        padding: 3rem 1.8rem;
        align-items: center;
        text-align: center;
    }

    .brand-block {
        display: flex;
        flex-direction: column;
        align-items: center;
        margin-bottom: 2.5rem;
    }

    .brand-title {
        font-size: 3rem;
    }

    .sidebar-nav {
        width: 100%;
        max-width: 380px;
        gap: 2.2rem;
    }

    .social-row {
        justify-content: center;
        gap: 1.5rem;
    }

    .social-row a {
        font-size: 1.45rem;
    }

    .nav-links {
        align-items: center;
    }

    .nav-links a {
        font-size: 1.1rem;
        padding: 0.4rem 0;
    }

    .sidebar-empty-notice {
        font-size: 0.95rem;
    }

    .sidebar-footer {
        margin-top: 3rem;
        width: 100%;
    }
}