/* ===== FONTS ===== */
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url('/fonts/inter-400.woff2') format('woff2');
    size-adjust: 107%;
    ascent-override: 90%;
    descent-override: 22%;
}
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 500;
    font-display: swap;
    src: url('/fonts/inter-500.woff2') format('woff2');
    size-adjust: 107%;
    ascent-override: 90%;
    descent-override: 22%;
}
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 600;
    font-display: swap;
    src: url('/fonts/inter-600.woff2') format('woff2');
    size-adjust: 107%;
    ascent-override: 90%;
    descent-override: 22%;
}
@font-face {
    font-family: 'JetBrains Mono';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url('/fonts/jetbrains-mono-400.woff2') format('woff2');
}

/* ===== ROOT VARIABLES ===== */
:root {
    --pp-bg-primary: #0b0e14;
    --pp-bg-secondary: #12161d;
    --pp-bg-panel: #0a0d12;
    --pp-bg-code: #080b10;
    --pp-text-main: #c9d1d9;
    --pp-text-sub: #8b949e;
    --pp-text-dim: rgba(255,255,255,0.25);
    --pp-text-head: #f0f6fc;
    --pp-link: #58a6ff;
    --pp-link-visited: #bc8cff;
    --pp-link-hover: #79c0ff;
    --pp-border: rgba(255,255,255,0.07);
    --pp-border-light: rgba(255,255,255,0.03);
    --pp-accent: #f0883e;
    --pp-accent-glow: rgba(240,136,62,0.15);
    --pp-font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --pp-font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --pp-base: 16px;
    --pp-line: 1.65;
    --pp-radius-sm: 3px;
    --pp-radius-md: 6px;
    --pp-trans-fast: 120ms ease;
    --pp-trans-base: 200ms ease;
    --pp-sidebar-w: 16rem;
    --pp-content-max: 48rem;
    --pp-container-max: 80rem;
}

/* ===== RESET ===== */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: var(--pp-base); scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    font-family: var(--pp-font-body);
    color: var(--pp-text-main);
    background: var(--pp-bg-primary);
    line-height: var(--pp-line);
    letter-spacing: 0.01em;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-width: 20rem;
    overflow-x: hidden;
}
::selection { background: rgba(240,136,62,0.25); color: #fff; }
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(240,136,62,0.15); border-radius: 3px; }
* { scrollbar-width: thin; scrollbar-color: rgba(240,136,62,0.15) transparent; }

a { color: var(--pp-link); text-decoration: none; transition: color var(--pp-trans-fast); }
a:visited { color: var(--pp-link-visited); }
a:hover { color: var(--pp-link-hover); }

/* ===== Убираем выделение при клике ===== */
a:focus,
a:active,
button:focus,
button:active {
    outline: none !important;
    -webkit-tap-highlight-color: transparent !important;
}
::-moz-focus-inner {
    border: 0 !important;
}
:focus {
    outline: 0 !important;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--pp-text-head);
    font-weight: 500;
    line-height: 1.3;
    margin-top: 1.6em;
    margin-bottom: 0.8rem;
}
h1 { font-size: 1.65rem; font-weight: 500; letter-spacing: -0.01em; }
h2 { font-size: 1.3rem; padding-bottom: 0.5rem; border-bottom: 1px solid var(--pp-border); }
h3 { font-size: 1.1rem; }
p { margin-bottom: 1rem; }
strong, b { font-weight: 600; color: #e6edf3; }

code {
    font-family: var(--pp-font-mono);
    font-size: 0.84em;
    padding: 0.15em 0.4em;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--pp-border-light);
    border-radius: var(--pp-radius-sm);
    color: #d1d5da;
}
pre {
    font-family: var(--pp-font-mono);
    font-size: 0.84rem;
    line-height: 1.55;
    padding: 1rem 1.5rem;
    background: var(--pp-bg-code);
    border: 1px solid rgba(88,166,255,0.08);
    border-radius: var(--pp-radius-md);
    overflow-x: auto;
    margin: 1.5rem 0;
    box-shadow: 0 0 20px rgba(0,0,0,0.3);
}
pre code { padding: 0; background: none; border: none; font-size: inherit; }

hr {
    border: none;
    height: 1px;
    background: linear-gradient(90deg, rgba(240,136,62,0.15), rgba(88,166,255,0.1), transparent);
    margin: 2rem 0;
}
ul, ol { padding-left: 1.5rem; margin-bottom: 1rem; }
li { margin-bottom: 0.25rem; }

/* ===== LAYOUT ===== */
.app-wrapper {
    max-width: var(--pp-container-max);
    margin: 0 auto;
    display: flex;
    min-height: 100vh;
}

/* --- Sidebar --- */
.nav-panel {
    flex: 0 0 var(--pp-sidebar-w);
    background: var(--pp-bg-panel);
    border-right: 1px solid var(--pp-border-light);
    position: fixed;
    top: 0; bottom: 0; left: 0;
    width: var(--pp-sidebar-w);
    overflow-y: auto;
    overflow-x: hidden;
    padding: 1rem;
    z-index: 100;
}
.nav-panel__brand {
    display: block;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--pp-text-head);
    margin-bottom: 1.5rem;
    padding: 0.25rem 0 1rem;
    border-bottom: 1px solid var(--pp-border);
    letter-spacing: -0.01em;
    position: relative;
}
.nav-panel__brand::before {
    content: '';
    display: inline-block;
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--pp-accent);
    margin-right: 8px;
    box-shadow: 0 0 6px var(--pp-accent), 0 0 12px var(--pp-accent-glow);
    animation: pulseDot 2.5s ease-in-out infinite;
    vertical-align: middle;
}
.nav-panel__section-title {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: rgba(240,136,62,0.3);
    margin: 2rem 0 0.5rem;
}
.nav-panel nav ul { list-style: none; padding: 0; margin: 0; }
.nav-panel nav ul li { margin: 1px 0; }
.nav-panel nav a {
    display: block;
    padding: 5px 8px;
    color: var(--pp-text-sub);
    font-size: 0.84rem;
    border-radius: var(--pp-radius-sm);
    transition: all var(--pp-trans-fast);
    word-wrap: break-word;
}
.nav-panel nav a.active {
    color: var(--pp-accent);
    background: rgba(240,136,62,0.06);
}
.nav-panel nav ul ul {
    padding-left: 1rem;
    border-left: 1px solid var(--pp-border-light);
    margin-left: 8px;
}

.sub-toggle { display: none; }
.sub-toggle + label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    padding: 5px 8px;
    font-size: 0.84rem;
    color: var(--pp-text-sub);
    border-radius: var(--pp-radius-sm);
    transition: all var(--pp-trans-fast);
    user-select: none;
}
.sub-toggle + label .chevron-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    width: 20px; height: 20px;
    border-radius: var(--pp-radius-sm);
    transition: transform var(--pp-trans-base);
    opacity: 0.5;
    flex-shrink: 0;
    line-height: 1;
}
.sub-toggle + label + ul { display: none; }
.sub-toggle:checked + label + ul { display: block; }
.sub-toggle:checked + label .chevron-icon { transform: rotate(180deg); opacity: 0.8; }
.sub-toggle:checked + label { color: var(--pp-text-main); }

/* --- Mobile Top Bar --- */
.mobile-topbar {
    display: none;
    padding: 0.75rem 1rem;
    background: var(--pp-bg-secondary);
    border-bottom: 1px solid var(--pp-border-light);
    position: sticky;
    top: 0;
    z-index: 50;
    align-items: center;
    justify-content: space-between;
}
.mobile-topbar__title { font-size: 0.9rem; font-weight: 600; }
.hamburger-btn {
    background: none;
    border: none;
    color: var(--pp-text-main);
    cursor: pointer;
    padding: 0.25rem;
    line-height: 0;
}

/* --- Main Content --- */
.main-area {
    flex: 1;
    margin-left: var(--pp-sidebar-w);
    min-width: 0;
    padding: 2rem 2rem 3rem;
    max-width: calc(var(--pp-content-max) + 2rem*2);
}
.guide-article { max-width: var(--pp-content-max); animation: fadeUp 0.4s ease-out; }
.guide-article h1 {
    margin-top: 0;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--pp-border);
    color: #f0f6fc;
    text-shadow: 0 0 10px var(--pp-accent-glow);
}
.version-stamp {
    font-size: 0.8rem;
    color: var(--pp-text-dim);
    margin-top: -0.25rem;
    margin-bottom: 1.5rem;
    font-style: italic;
}
.breadcrumbs {
    font-size: 0.8rem;
    color: var(--pp-text-dim);
    margin-bottom: 1rem;
}
.breadcrumbs a { color: var(--pp-text-dim); }
.breadcrumbs .sep { margin: 0 0.4em; opacity: 0.4; }
.info-box {
    background: #161b22;
    border-left: 4px solid var(--pp-accent);
    padding: 1rem 1.25rem;
    border-radius: var(--pp-radius-md);
    margin: 1.5rem 0;
    color: #d0d7de;
}
.info-box strong { color: var(--pp-accent); }
.page-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--pp-border);
}
.page-nav__label { display: block; font-size: 0.75rem; color: var(--pp-text-dim); }
.page-nav__title { display: block; font-weight: 500; color: var(--pp-link); }

/* --- Footer --- */
.global-footer {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--pp-border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: var(--pp-text-sub);
    max-width: var(--pp-content-max);
}
.global-footer__links a { margin-left: 1rem; color: var(--pp-text-sub); }
.global-footer__links a:hover { color: var(--pp-link); }

/* --- Right TOC --- */
.reference-sidebar {
    flex: 0 0 14rem;
    padding: 2rem 1.5rem 0 0;
    position: sticky;
    top: 0;
    align-self: flex-start;
    height: 100vh;
    overflow-y: auto;
    display: block;
}
.reference-sidebar__title {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--pp-text-dim);
    margin-bottom: 0.75rem;
}
.reference-sidebar nav ul { list-style: none; padding: 0; margin: 0; }
.reference-sidebar nav ul li { margin: 0.25rem 0; }
.reference-sidebar nav a {
    font-size: 0.8rem;
    color: var(--pp-text-sub);
    display: block;
    padding: 2px 0;
    border-left: 2px solid transparent;
    padding-left: 0.5rem;
    transition: all var(--pp-trans-fast);
}
.reference-sidebar nav a:hover { color: var(--pp-text-main); border-left-color: var(--pp-accent); }

.menu-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.6);
    z-index: 150;
}

/* ===== ANIMATIONS ===== */
@keyframes pulseDot {
    0%,100% { opacity:1; box-shadow:0 0 6px var(--pp-accent),0 0 12px var(--pp-accent-glow); }
    50% { opacity:0.4; box-shadow:0 0 3px var(--pp-accent); }
}
@keyframes fadeUp {
    from { opacity:0; transform:translateY(6px); }
    to { opacity:1; transform:translateY(0); }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 56rem) {
    .nav-panel {
        transform: translateX(-100%);
        transition: transform var(--pp-trans-base);
        z-index: 200;
    }
    .nav-panel.open { transform: translateX(0); box-shadow: 2px 0 12px rgba(0,0,0,0.5); }
    .main-area { margin-left: 0; padding: 1rem; }
    .reference-sidebar { display: none; }
    .mobile-topbar { display: flex; }
    .nav-panel.open ~ .menu-overlay { display: block; }
}
@media (max-width: 40rem) {
    .global-footer { flex-direction: column; text-align: center; }
    .global-footer__links a { margin: 0 0.5rem; }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
    html { scroll-behavior: auto; }
}

/* ===== Мобильное меню без JS ===== */
.mobile-toggle {
    display: none;
}

.mobile-toggle + label {
    display: none; /* скрыто на десктопе */
}

/* На мобильных устройствах показываем гамбургер */
@media (max-width: 56rem) {
    .mobile-toggle + label {
        display: flex;
        align-items: center;
        justify-content: center;
        background: none;
        border: none;
        color: var(--pp-text-main);
        cursor: pointer;
        padding: 0.25rem;
        line-height: 0;
        font-size: 1.5rem;
        user-select: none;
        width: 40px;
        height: 40px;
    }
    .mobile-toggle:checked ~ .app-wrapper .nav-panel {
        transform: translateX(0);
        box-shadow: 2px 0 12px rgba(0,0,0,0.5);
    }
    .mobile-toggle:checked ~ .app-wrapper .menu-overlay {
        display: block;
    }
    .mobile-topbar {
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
    .mobile-topbar .hamburger-icon {
        display: inline-block;
        width: 24px;
        height: 24px;
        position: relative;
    }
    .mobile-topbar .hamburger-icon span {
        display: block;
        width: 100%;
        height: 2px;
        background: var(--pp-text-main);
        margin: 4px 0;
        transition: 0.3s;
    }
    /* Анимация при открытии (можно добавить, но не обязательно) */
}

/* ===== Мобильное меню без JS ===== */
.mobile-toggle {
    display: none;
}

.mobile-toggle + label {
    display: none;
}

@media (max-width: 56rem) {
    .mobile-toggle + label {
        display: flex;
        align-items: center;
        justify-content: center;
        background: none;
        border: none;
        color: var(--pp-text-main);
        cursor: pointer;
        padding: 0.25rem;
        line-height: 0;
        user-select: none;
        width: 40px;
        height: 40px;
    }
    .mobile-toggle:checked ~ .app-wrapper .nav-panel {
        transform: translateX(0);
        box-shadow: 2px 0 12px rgba(0,0,0,0.5);
    }
    .mobile-toggle:checked ~ .app-wrapper .menu-overlay {
        display: block;
    }
    .mobile-topbar {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 0.75rem 1rem;
        background: var(--pp-bg-secondary);
        border-bottom: 1px solid var(--pp-border-light);
        position: sticky;
        top: 0;
        z-index: 50;
    }
    .mobile-topbar .hamburger-icon {
        display: inline-block;
        width: 24px;
        height: 18px;
        position: relative;
        flex-direction: column;
        justify-content: space-between;
    }
    .mobile-topbar .hamburger-icon span {
        display: block;
        width: 100%;
        height: 2px;
        background: var(--pp-text-main);
        transition: 0.3s;
        margin: 3px 0;
    }
    .mobile-topbar__title {
        font-size: 0.9rem;
        font-weight: 600;
    }
}