:root {
    --primary: #0ca678;
    --primary-dark: #0a8f68;
    --primary-light: #2fd699;
    --on-primary: #06140d;
    --accent-rgb: 12, 166, 120;
    --secondary: #3b82f6;
    --secondary-light: #60a5fa;
    --accent: #f59e0b;
    --bg-main: #0b1120;
    --bg-secondary: #111c30;
    --bg-alt: #0e1729;
    --text-main: #e6edf6;
    --text-muted: #aebccd;
    --border-color: #243049;
    --card-bg: #131f36;
    --card-bg-2: #16233d;
    --radius-md: 12px;
    --radius-lg: 16px;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.4);
    --shadow-md: 0 10px 30px -10px rgb(0 0 0 / 0.6);
    --font-heading: 'Inter', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    width: 100%;
}

/* Инлайновый <code> в тексте. Правила для него здесь не было вовсе, и он
   падал на браузерный monospace: рядом с Inter это читается как случайно
   попавший чужой шрифт — заметнее всего в истории изменений, где имён
   ключей много. Оформление взято из руководства (user_guide.html), чтобы
   страницы не расходились между собой.

   Блоки кода и терминал исключены: у них своя подача, и фон с рамкой там
   только мешают. */
code {
    font-family: var(--font-mono);
    font-size: 0.85em;
    background: var(--card-bg-2);
    color: var(--primary-light);
    padding: 2px 6px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

pre code,
.terminal-body code {
    background: none;
    padding: 0;
    border: none;
}

pre code {
    color: inherit;
    font-size: inherit;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    color: var(--text-main);
    line-height: 1.2;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.2s;
}

ul {
    list-style: none;
}

/* Ссылка внутри обычного текста. Глобальное правило выше красит ссылки в
   цвет родителя и снимает подчёркивание — в абзаце такая ссылка не читается
   как ссылка вовсе. Здесь возвращаем оба признака. */
.text-link {
    color: var(--primary-light);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
    text-decoration-color: rgba(var(--accent-rgb), 0.55);
    transition: color 0.2s, text-decoration-color 0.2s;
}

.text-link:hover {
    color: var(--primary);
    text-decoration-color: currentColor;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--primary);
    color: var(--on-primary);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-1px);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--border-color);
    color: var(--text-main);
}

.btn-outline:hover {
    border-color: var(--text-main);
    background-color: var(--bg-secondary);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1.125rem;
}

/* Header */
.site-header {
    height: 80px;
    display: flex;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(11, 17, 32, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
}

/* Зазор задан явно: при space-between элементы прижимаются друг к другу,
   как только их суммарная ширина подбирается к ширине контейнера. По-русски
   подписи длиннее английских примерно на четверть, и логотип слипался со
   словом «Возможности». */
.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    gap: 24px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
    letter-spacing: -0.02em;
    white-space: nowrap;
}

/* Кнопка покупки не переносится на две строки: «Купить лицензию» вдвое
   длиннее «Buy a licence» и в узком месте ломалась пополам. */
.site-header .btn-primary {
    white-space: nowrap;
    flex-shrink: 0;
}

.logo span {
    color: var(--text-muted);
}

/* Промежутки между пунктами сжимаются вместе с окном: 32 пикселя хороши для
   английского на широком экране, но русскому меню столько места не остаётся. */
.main-nav ul {
    display: flex;
    gap: clamp(14px, 1.7vw, 32px);
    white-space: nowrap;
}

.nav-link {
    font-weight: 500;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.nav-link:hover {
    color: var(--primary);
}

/* Переключатель языка. Рамка, а не заливка: рядом стоит кнопка покупки, и
   вторая яркая кнопка отбирала бы у неё внимание. */
.lang-switch {
    font-weight: 600;
    font-size: 0.8rem;
    letter-spacing: 0.04em;
    color: var(--text-muted);
    border: 1px solid rgba(148, 163, 184, 0.35);
    border-radius: 6px;
    padding: 6px 10px;
    flex-shrink: 0;
    transition: color 0.2s, border-color 0.2s;
}

.lang-switch:hover {
    color: var(--primary);
    border-color: var(--primary);
}

/* Hero Section */
.hero {
    padding: 50px 0 60px;
    text-align: center;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(var(--accent-rgb), 0.07) 1px, transparent 1px),
        linear-gradient(90deg, rgba(var(--accent-rgb), 0.07) 1px, transparent 1px);
    background-size: 60px 60px;
    animation: gridMove 20s linear infinite;
}

.hero::after {
    content: '';
    position: absolute;
    top: 20%;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(var(--accent-rgb), 0.15) 0%, transparent 70%);
    pointer-events: none;
}

@keyframes gridMove {
    0% {
        background-position: 0 0;
    }

    100% {
        background-position: 60px 60px;
    }
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 24px;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, #ffffff 0%, #94a3b8 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 48px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
}

.hero .btn-outline {
    border-color: rgba(148, 163, 184, 0.3);
    color: #e2e8f0;
}

.hero .btn-outline:hover {
    border-color: rgba(148, 163, 184, 0.6);
    background-color: rgba(255, 255, 255, 0.05);
}

/* Section Common */
.section {
    padding: 51px 0;
}

.section-dark {
    background-color: var(--bg-alt);
}

.section-header {
    text-align: center;
    margin-bottom: 56px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-muted);
}

/* Features */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.feature-card {
    background: var(--card-bg);
    padding: 20px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.feature-card.coming-soon {
    border: 1px dashed var(--border-color);
    background: rgba(255, 255, 255, 0.03);
    opacity: 0.7;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.feature-card.coming-soon:hover {
    transform: none;
    box-shadow: none;
    border-color: var(--border-color);
    cursor: default;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
}

.feature-icon {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 80px;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
    font-weight: 600;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Architecture */
.architecture-content {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: 48px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.arch-diagram {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.arch-step {
    text-align: center;
}

.arch-box {
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    padding: 16px 24px;
    border-radius: 12px;
    font-weight: 600;
    margin-bottom: 8px;
    min-width: 140px;
    max-width: 100%;
}

.arch-box.primary {
    background: var(--primary);
    color: var(--on-primary);
    border-color: var(--primary-dark);
    box-shadow: 0 0 20px rgba(var(--accent-rgb), 0.2);
}

.arch-box.globe {
    border-radius: 50%;
    width: 100px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 8px;
}

.arch-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.arch-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 1.5rem;
    font-weight: 300;
}

.arch-arrow svg {
    width: 40px;
    height: 24px;
    stroke: var(--primary);
    stroke-width: 2;
    fill: none;
    filter: drop-shadow(0 0 4px rgba(var(--accent-rgb), 0.3));
}

.arch-split {
    display: flex;
    flex-direction: column;
    gap: 16px;
    position: relative;
}

.arch-split::before {
    display: none;
}

.arch-text {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    color: var(--text-muted);
}

/* Pricing */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 400px));
    gap: 32px;
    justify-content: center;
}

.pricing-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px;
    position: relative;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.pricing-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
    border-color: var(--primary);
}

.pricing-card.featured {
    border-color: var(--primary);
    box-shadow: 0 8px 24px rgba(var(--accent-rgb), 0.15);
    transform: scale(1.05);
    z-index: 1;
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-6px);
    box-shadow: 0 16px 40px rgba(var(--accent-rgb), 0.25);
}

.badge {
    position: absolute;
    top: -12px;
    right: 24px;
    background: var(--primary);
    color: var(--on-primary);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.price {
    font-size: 3rem;
    font-weight: 700;
    margin: 24px 0;
    color: var(--text-main);
}

.price span {
    font-size: 1rem;
    color: var(--text-muted);
    font-weight: 500;
}

.features-list {
    margin-bottom: 32px;
}

.features-list li {
    margin-bottom: 16px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 12px;
}

.features-list li::before {
    content: "✓";
    color: var(--primary);
    font-weight: 700;
}

.full-width {
    width: 100%;
}

/* Download */
.download-content {
    max-width: 800px;
    margin: 0 auto;
    display: grid;
    gap: 32px;
}

.download-box {
    background: var(--card-bg);
    padding: 40px;
    border-radius: var(--radius-lg);
    text-align: center;
    border: 1px solid var(--border-color);
    min-width: 0;
}

.os-req {
    color: var(--text-muted);
    margin-bottom: 24px;
}

.version-info {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-top: 16px;
}

.changelog {
    background: var(--card-bg);
    padding: 32px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    min-width: 0;
}

.changelog h3 {
    margin-bottom: 24px;
    font-size: 1.25rem;
}

.changelog-item {
    padding-left: 0;
}

.version {
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 4px;
}

.date {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.changelog-item ul {
    list-style: disc;
    margin-left: 16px;
    color: var(--text-muted);
}

/* Docs */
.docs-content {
    max-width: 900px;
    margin: 0 auto;
}

.collapsible-header {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 20px 24px;
    border-radius: var(--radius-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s;
}

.collapsible-header:hover {
    border-color: var(--primary);
}

.collapsible-header span:first-child {
    font-family: var(--font-mono);
    color: var(--primary);
}

.arrow {
    transition: transform 0.3s ease;
}

.collapsible-header.active .arrow {
    transform: rotate(180deg);
}

/* API */
.api-content {
    max-width: 900px;
    margin: 0 auto;
}

.api-endpoint {
    background: var(--card-bg);
    padding: 24px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 16px;
}

.method {
    background: var(--primary);
    color: var(--on-primary);
    font-weight: 600;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
}

.url {
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--text-main);
}

.desc {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-left: auto;
}

/* FAQ Accordion */
.faq-grid {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.faq-item.active {
    border-color: var(--primary);
    box-shadow: 0 4px 12px rgba(var(--accent-rgb), 0.1);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 28px;
    cursor: pointer;
    user-select: none;
    transition: background 0.2s;
}

.faq-question:hover {
    background: rgba(var(--accent-rgb), 0.03);
}

.faq-question h3 {
    font-size: 1.05rem;
    margin: 0;
    color: var(--text-main);
    font-weight: 600;
    flex: 1;
    padding-right: 16px;
}

.faq-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(var(--accent-rgb), 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: transform 0.3s ease, background 0.3s ease;
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
    background: var(--primary);
}

.faq-icon svg {
    width: 14px;
    height: 14px;
    stroke: var(--primary);
    stroke-width: 2.5;
    transition: stroke 0.3s ease;
}

.faq-item.active .faq-icon svg {
    stroke: var(--on-primary);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.3s ease;
    padding: 0 28px;
}

.faq-item.active .faq-answer {
    max-height: 300px;
    padding: 0 28px 20px;
}

.faq-answer p {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.7;
}

/* Footer */
.site-footer {
    padding: 60px 0 40px;
    border-top: none;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    margin-top: 0;
    color: var(--text-muted);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 40px;
    align-items: start;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    color: #ffffff;
}

.footer-brand p {
    font-size: 0.85rem;
    color: var(--text-muted);
    max-width: 300px;
}

.footer-nav {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-nav-title {
    font-weight: 600;
    color: #e2e8f0;
    font-size: 0.9rem;
    margin-bottom: 4px;
}

.footer-nav a {
    color: var(--text-muted);
    font-size: 0.85rem;
    transition: color 0.2s;
}

.footer-nav a:hover {
    color: var(--primary);
}

.footer-right {
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: flex-end;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.footer-social a {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-muted);
    font-size: 0.85rem;
    transition: color 0.2s;
}

.footer-social a:hover {
    color: var(--primary);
}

.footer-bottom {
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid rgba(148, 163, 184, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-copy {
    color: var(--text-muted);
    font-size: 0.8rem;
}

.footer-links-inline {
    display: flex;
    gap: 16px;
}

.footer-links-inline a {
    color: var(--text-muted);
    font-size: 0.8rem;
    transition: color 0.2s;
}

.footer-links-inline a:hover {
    color: var(--primary);
}

/* Collapsible Blocks */
.collapsible-block {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    min-width: 0;
}

.collapsible-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.collapsible-content.active {
    max-height: 5000px;
}

.collapsible-content pre {
    padding: 16px;
    margin: 0;
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: #cbd5e1;
    line-height: 1.5;
    background: #0a1322;
    max-width: 100%;
}

.collapsible-toggle {
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    user-select: none;
    font-size: 0.8rem;
    color: var(--primary) !important;
    background: rgba(var(--accent-rgb), 0.08);
    padding: 3px 10px;
    border-radius: 12px;
    font-weight: 500;
    font-family: var(--font-body);
    vertical-align: middle;
}

.collapsible-toggle:hover {
    background: rgba(var(--accent-rgb), 0.15);
    transform: none;
}

.collapsible-toggle .toggle-arrow {
    transition: transform 0.3s ease;
    font-size: 0.7rem;
}

.collapsible-toggle.active .toggle-arrow {
    transform: rotate(180deg);
}

/* Scroll Reveal */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Burger Menu */
.burger-menu {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
    z-index: 200;
    background: none;
    border: none;
}

.burger-menu span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-main);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.burger-menu.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.burger-menu.active span:nth-child(2) {
    opacity: 0;
}

.burger-menu.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Nav Overlay */
.mobile-nav {
    display: none;
    position: fixed;
    inset: 0;
    top: 80px;
    background: rgba(11, 17, 32, 0.98);
    backdrop-filter: blur(16px);
    z-index: 99;
    padding: 40px 24px;
    flex-direction: column;
    gap: 0;
}

.mobile-nav.active {
    display: flex;
}

.mobile-nav a {
    display: block;
    padding: 16px 0;
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-main);
    border-bottom: 1px solid var(--border-color);
}

.mobile-nav a:hover {
    color: var(--primary);
}

/* Responsive — Tablet */
/* Русские подписи в меню примерно на четверть длиннее английских, поэтому
   шапка перестаёт помещаться раньше — между 768 и 1200 пикселями кнопка
   покупки уезжала за правый край. Для русской версии переходим к бургеру
   раньше; :lang() позволяет сделать это без второй таблицы стилей и без
   привязки к конкретным словам. */
@media (max-width: 1200px) {
    html:lang(ru) .main-nav {
        display: none;
    }

    html:lang(ru) .burger-menu {
        display: flex;
    }
}

@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .pricing-card.featured {
        transform: none;
    }

    .pricing-card.featured:hover {
        transform: translateY(-4px);
    }

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

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .architecture-content {
        padding: 32px 24px;
    }

    .section {
        padding: 60px 0;
    }
}

/* Responsive — Mobile */
@media (max-width: 768px) {
    .container {
        padding: 0 16px;
        overflow-x: hidden;
    }

    /* Header: hide CTA button (it's in burger menu) */
    .site-header .btn-primary {
        display: none;
    }

    .features-grid,
    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .hero {
        padding: 80px 0 50px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
        margin-bottom: 32px;
    }

    .main-nav {
        display: none;
    }

    .burger-menu {
        display: flex;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .section-subtitle {
        font-size: 0.95rem;
    }

    .pricing-card {
        padding: 28px 20px;
    }

    .pricing-card.featured {
        transform: none;
    }

    .pricing-card.featured:hover {
        transform: translateY(-2px);
    }

    .price {
        font-size: 2.5rem;
    }

    .docs-content {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
        text-align: center;
    }

    .footer-right {
        align-items: center;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 12px;
    }

    .api-endpoint {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .desc {
        margin-left: 0;
    }

    /* Architecture: vertical layout */
    .arch-diagram {
        flex-direction: column;
        gap: 12px;
    }

    .arch-arrow {
        transform: rotate(90deg);
        margin: 4px 0;
    }

    .arch-arrow svg {
        transform: rotate(90deg);
    }

    .architecture-content {
        padding: 24px 16px;
    }

    .arch-box {
        padding: 12px 20px;
        min-width: 120px;
        font-size: 0.9rem;
    }

    .arch-box.globe {
        width: 80px;
        height: 80px;
        font-size: 0.85rem;
    }

    /* FAQ mobile */
    .faq-question {
        padding: 16px 20px;
    }

    .faq-question h3 {
        font-size: 0.95rem;
    }

    .faq-answer {
        padding: 0 20px;
    }

    .faq-item.active .faq-answer {
        padding: 0 20px 16px;
    }

    .faq-icon {
        width: 24px;
        height: 24px;
    }

    .faq-icon svg {
        width: 12px;
        height: 12px;
    }

    /* Download */
    .download-box {
        padding: 24px 16px;
    }

    .terminal-body code {
        font-size: 0.8rem;
        margin-right: 8px;
    }

    .download-box .btn {
        width: 100%;
        margin-bottom: 8px;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
        gap: 12px;
    }

    .btn-lg {
        padding: 14px 28px;
        font-size: 1rem;
    }

    /* Feature icon sizing */
    .feature-icon img {
        width: 64px;
        height: 64px;
    }

    .feature-card {
        padding: 24px 20px;
    }

    .feature-card h3 {
        font-size: 1.1rem;
    }

    /* Section spacing */
    .section {
        padding: 48px 0;
    }

    .section-header {
        margin-bottom: 32px;
    }
}

/* Responsive — Small phones */
@media (max-width: 400px) {
    .hero-title {
        font-size: 1.75rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .price {
        font-size: 2rem;
    }

    .arch-box {
        min-width: 100px;
        padding: 10px 16px;
        font-size: 0.85rem;
    }

    .faq-question h3 {
        font-size: 0.9rem;
    }
}

/* Feature Icons */
.feature-icon img {
    width: 80px;
    height: 80px;
    object-fit: contain;
    filter: drop-shadow(0 4px 6px rgba(var(--accent-rgb), 0.2));
    transition: transform 0.3s ease;
}

.feature-card:hover .feature-icon img {
    transform: scale(1.1);
}

.feature-icon svg {
    width: 48px;
    height: 48px;
    stroke: var(--primary);
    stroke-width: 1.5;
    fill: none;
    filter: drop-shadow(0 2px 4px rgba(var(--accent-rgb), 0.3));
    transition: transform 0.3s ease, filter 0.3s ease;
}

.feature-card:hover .feature-icon svg {
    transform: scale(1.1);
    filter: drop-shadow(0 4px 8px rgba(var(--accent-rgb), 0.5));
}

.feature-icon-wrap {
    width: 72px;
    height: 72px;
    border-radius: 16px;
    background: rgba(var(--accent-rgb), 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 8px;
    transition: background 0.3s ease;
}

.feature-card:hover .feature-icon-wrap {
    background: rgba(var(--accent-rgb), 0.14);
}

/* Hero Particles Canvas */
#hero-particles {
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
}

/* Architecture Staggered Animation */
.arch-step,
.arch-arrow {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.arch-diagram.animated .arch-step,
.arch-diagram.animated .arch-arrow {
    opacity: 1;
    transform: translateY(0);
}

.arch-diagram.animated .arch-step:nth-child(1) { transition-delay: 0.1s; }
.arch-diagram.animated .arch-arrow:nth-child(2) { transition-delay: 0.25s; }
.arch-diagram.animated .arch-step:nth-child(3) { transition-delay: 0.4s; }
.arch-diagram.animated .arch-arrow:nth-child(4) { transition-delay: 0.55s; }
.arch-diagram.animated .arch-split { transition-delay: 0.7s; }
.arch-diagram.animated .arch-arrow:nth-child(6) { transition-delay: 0.85s; }
.arch-diagram.animated .arch-step:nth-child(7) { transition-delay: 1.0s; }

.arch-split {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.arch-diagram.animated .arch-split {
    opacity: 1;
    transform: translateY(0);
}

/* Holy Glow Animation */
.arch-box.primary:hover {
    animation: holyGlow 2s infinite ease-in-out;
    z-index: 10;
    transform: scale(1.05);
    cursor: default;
}

@keyframes holyGlow {
    0% {
        box-shadow: 0 0 20px rgba(var(--accent-rgb), 0.5);
    }

    50% {
        box-shadow: 0 0 50px rgba(var(--accent-rgb), 0.9), 0 0 100px rgba(var(--accent-rgb), 0.6);
    }

    100% {
        box-shadow: 0 0 20px rgba(var(--accent-rgb), 0.5);
    }
}

.arch-box.primary {
    transition: all 0.3s ease;
    position: relative;
}

/* Install Terminal Styles */
.install-terminal {
    background: #0a1322;
    border-radius: 8px;
    overflow: hidden;
    margin: 20px 0;
    box-shadow: inset 0 0 0 1px rgba(var(--accent-rgb), 0.15);
    border: 1px solid var(--border-color);
    text-align: left;
}

.terminal-body {
    padding: 12px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.terminal-body code {
    flex: 1;
    min-width: 0;
    color: #5eead4;
    font-family: 'JetBrains Mono', 'Courier New', monospace;
    font-size: 0.95rem;
    white-space: nowrap;
    overflow-x: auto;
    margin-right: 16px;
}

.copy-btn {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    width: 36px;
    height: 36px;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.copy-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
}

.copy-btn.copied {
    color: #1ed687;
    background: rgba(var(--accent-rgb), 0.1);
}
/* Checksum table in the download section */
.checksums {
    width: 100%;
    margin-top: 20px;
    border-collapse: collapse;
    font-size: 0.85rem;
}
.checksums th,
.checksums td {
    text-align: left;
    padding: 8px 10px;
    border-bottom: 1px solid var(--border-color);
}
.checksums th {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-muted);
    font-weight: 600;
}
.checksums td {
    color: var(--text-main);
    white-space: nowrap;
}
.checksums td.md5 {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--text-muted);
    word-break: break-all;
    white-space: normal;
}
@media (max-width: 560px) {
    .checksums th:nth-child(2),
    .checksums td:nth-child(2) { display: none; }
}

/* ==========================================================================
   REDESIGN: dark theme — refinements to hierarchy, palette and rhythm
   (overrides live at the end of the file and win by cascade)
   ========================================================================== */

/* Thin divider between adjacent sections */
.section + .section {
    border-top: 1px solid rgba(148, 163, 184, 0.06);
}

/* Section headings: the kicker above gets a green gradient */
.section-title {
    background: linear-gradient(135deg, #ffffff 0%, #cbd5e1 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Hero: stronger contrast on the subtitle and heading gradient */
.hero-title {
    background: linear-gradient(135deg, #ffffff 0%, #c7d2e0 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.hero-subtitle { color: #aebccd; }
.hero { padding: 110px 0 120px; }

/* ---- Feature cards: icon plate, depth, hover glow ---- */
.feature-card {
    background: var(--card-bg);
    padding: 28px 24px;
    box-shadow: var(--shadow-sm);
}
.feature-card:hover {
    transform: translateY(-6px);
    border-color: rgba(var(--accent-rgb), 0.55);
    box-shadow: 0 16px 40px -12px rgba(0, 0, 0, 0.7), 0 0 0 1px rgba(var(--accent-rgb), 0.25);
}
.feature-icon {
    width: 64px;
    height: 64px;
    border-radius: 14px;
    background: radial-gradient(circle at 30% 25%, rgba(var(--accent-rgb), 0.22), rgba(var(--accent-rgb), 0.06));
    box-shadow: inset 0 0 0 1px rgba(var(--accent-rgb), 0.18);
    margin: 0 auto 18px;
}
.feature-icon img { width: 40px; height: 40px; }
@media (max-width: 768px) { .feature-icon img { width: 38px; height: 38px; } }

/* Flagship cards (Hybrid and p0f) — highlighted with an accent fill */
.feature-card.highlight {
    background:
        linear-gradient(160deg, rgba(var(--accent-rgb), 0.10), rgba(var(--accent-rgb), 0) 60%),
        var(--card-bg-2);
    border-color: rgba(var(--accent-rgb), 0.35);
}
.feature-card.highlight .feature-icon {
    background: radial-gradient(circle at 30% 25%, rgba(var(--accent-rgb), 0.45), rgba(var(--accent-rgb), 0.12));
    box-shadow: inset 0 0 0 1px rgba(var(--accent-rgb), 0.4), 0 0 24px -6px rgba(var(--accent-rgb), 0.5);
}

/* ---- Pricing cards: depth on dark ---- */
.pricing-card { background: var(--card-bg); }
.pricing-card:hover {
    box-shadow: 0 20px 48px -16px rgba(0, 0, 0, 0.8);
    border-color: rgba(var(--accent-rgb), 0.55);
}
.pricing-card.featured {
    background: linear-gradient(160deg, rgba(var(--accent-rgb), 0.10), rgba(var(--accent-rgb), 0) 55%), var(--card-bg-2);
    box-shadow: 0 0 0 1px rgba(var(--accent-rgb), 0.35), 0 20px 50px -18px rgba(var(--accent-rgb), 0.35);
}
.pricing-card.featured:hover {
    box-shadow: 0 0 0 1px rgba(var(--accent-rgb), 0.5), 0 26px 60px -18px rgba(var(--accent-rgb), 0.45);
}
.price { color: #ffffff; }
/* "Savings" — amber accent */
.features-list li.save { color: var(--accent); font-weight: 600; }
.features-list li.save::before { content: "★"; color: var(--accent); }

/* ---- Architecture: blue reserved for IPv6 subnets ---- */
.architecture-content {
    background: var(--card-bg);
    box-shadow: var(--shadow-md);
}
.arch-box {
    background: var(--bg-secondary);
    border-color: var(--border-color);
}
.arch-split .arch-box {
    background: rgba(59, 130, 246, 0.10);
    border-color: rgba(59, 130, 246, 0.45);
    color: var(--secondary-light);
}
.arch-box.globe {
    background: rgba(59, 130, 246, 0.08);
    border-color: rgba(59, 130, 246, 0.4);
}

/* ---- API / FAQ / changelog cards: consistent depth ---- */
.api-endpoint,
.faq-item,
.collapsible-block,
.changelog,
.download-box {
    background: var(--card-bg);
    box-shadow: var(--shadow-sm);
}
.url { color: #cbd5e1; }
.faq-question:hover { background: rgba(var(--accent-rgb), 0.05); }

/* copy-btn over the dark terminal */
.copy-btn {
    background: rgba(148, 163, 184, 0.08);
    border-color: rgba(148, 163, 184, 0.2);
}
.copy-btn:hover { background: rgba(var(--accent-rgb), 0.15); color: var(--primary-light); }

/* Header logo span, a little brighter on dark */
.logo span { color: var(--primary); }

/* Checksum table on a dark background */
.checksums td { color: var(--text-main); }
.checksums td.md5 { color: var(--text-muted); }

/* Responsive: trim the excess whitespace on mobile */
@media (max-width: 1024px) { .section { padding: 51px 0; } .hero { padding: 90px 0 90px; } }
@media (max-width: 768px)  { .section { padding: 40px 0; } .section-header { margin-bottom: 40px; } .hero { padding: 80px 0 60px; } }

/* ==========================================================================
   Tools side panel (drawer on the left) and burger button
   ========================================================================== */
.header-left {
    display: flex;
    align-items: center;
    gap: 14px;
}
.tools-toggle {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(148, 163, 184, 0.06);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 8px 12px;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
    font: inherit;
    font-size: 0.9rem;
}
.tools-toggle:hover {
    border-color: rgba(var(--accent-rgb), 0.5);
    background: rgba(var(--accent-rgb), 0.08);
}
.tools-toggle .bars {
    display: inline-flex;
    flex-direction: column;
    gap: 3px;
}
.tools-toggle .bars span {
    display: block;
    width: 18px;
    height: 2px;
    border-radius: 2px;
    background: var(--primary);
}
.tools-toggle .tools-label { font-weight: 600; letter-spacing: -0.01em; }
@media (max-width: 560px) { .tools-toggle .tools-label { display: none; } }

/* Backdrop */
.tools-overlay {
    position: fixed;
    inset: 0;
    background: rgba(2, 6, 16, 0.6);
    backdrop-filter: blur(2px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, visibility 0.25s ease;
    z-index: 300;
}
.tools-overlay.active { opacity: 1; visibility: visible; }

/* The panel itself */
.tools-drawer {
    position: fixed;
    top: 0;
    left: 0;
    height: 100%;
    width: 320px;
    max-width: 86vw;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    box-shadow: 24px 0 60px -20px rgba(0, 0, 0, 0.8);
    transform: translateX(-100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 301;
    display: flex;
    flex-direction: column;
    padding: 20px;
    overflow-y: auto;
}
.tools-drawer.active { transform: translateX(0); }

.tools-drawer-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 16px;
    margin-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}
.tools-drawer-head .title {
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--text-main);
}
.tools-drawer-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 8px;
    transition: all 0.2s;
}
.tools-drawer-close:hover { color: var(--text-main); background: rgba(148,163,184,0.1); }

.tools-drawer-group {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    margin: 16px 4px 8px;
}
.tools-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border-radius: 10px;
    color: var(--text-main);
    border: 1px solid transparent;
    transition: all 0.2s ease;
}
.tools-link:hover {
    background: rgba(var(--accent-rgb), 0.08);
    border-color: rgba(var(--accent-rgb), 0.3);
}
.tools-link .ic {
    width: 34px;
    height: 34px;
    flex-shrink: 0;
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(var(--accent-rgb), 0.12);
    color: var(--primary-light);
}
.tools-link .ic svg { width: 18px; height: 18px; }
.tools-link .tl-text { display: flex; flex-direction: column; gap: 2px; }
.tools-link .tl-title { font-weight: 600; font-size: 0.95rem; }
.tools-link .tl-sub { font-size: 0.78rem; color: var(--text-muted); }
.tools-link.soon {
    opacity: 0.55;
    pointer-events: none;
}
.tools-link.soon .ic { background: rgba(148, 163, 184, 0.1); color: var(--text-muted); }
.tools-link .badge-soon {
    margin-left: auto;
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-muted);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2px 8px;
}
.tools-drawer-foot {
    margin-top: auto;
    padding-top: 16px;
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ==========================================================================
   Tool pages (/tools/*) — shared frame
   ========================================================================== */
.tool-header {
    height: 72px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    background: rgba(11, 17, 32, 0.85);
    backdrop-filter: blur(12px);
    position: sticky;
    top: 0;
    z-index: 50;
}
.tool-header .container { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.tool-header .logo { font-size: 1.25rem; font-weight: 700; }
.tool-back { display: inline-flex; align-items: center; gap: 8px; color: var(--text-muted); font-size: 0.9rem; }
.tool-back:hover { color: var(--primary); }

.tool-wrap { max-width: 1100px; margin: 0 auto; padding: 40px 24px 80px; }
.tool-title { font-size: 2rem; font-weight: 700; margin-bottom: 8px; letter-spacing: -0.02em; }
.tool-sub { color: var(--text-muted); margin-bottom: 8px; }
.ver-note {
    font-family: var(--font-mono);
    font-weight: 500;
    font-size: 0.92em;
    color: var(--primary-light);
    white-space: nowrap;
}
.tool-privacy {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 0.82rem; color: var(--primary-light);
    background: rgba(var(--accent-rgb), 0.08);
    border: 1px solid rgba(var(--accent-rgb), 0.25);
    padding: 8px 14px; border-radius: 20px; margin: 12px 0 28px;
}

.tool-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: start; }
@media (max-width: 860px) { .tool-grid { grid-template-columns: 1fr; } }

.tool-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
}
.tool-card h2 { font-size: 1rem; margin-bottom: 12px; color: var(--text-main); }

.code-input {
    width: 100%;
    min-height: 420px;
    resize: vertical;
    background: #0a1322;
    color: #cbd5e1;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 14px 16px;
    font-family: var(--font-mono);
    font-size: 0.86rem;
    line-height: 1.55;
    tab-size: 2;
}
.code-input:focus { outline: none; border-color: rgba(var(--accent-rgb), 0.5); }
.code-input.dragover { border-color: var(--primary); background: rgba(var(--accent-rgb),0.05); }

.tool-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 14px; }
.tool-actions .btn { padding: 10px 18px; font-size: 0.95rem; }
.btn-ghost {
    background: transparent; border: 1px solid var(--border-color); color: var(--text-main);
}
.btn-ghost:hover { border-color: rgba(var(--accent-rgb),0.5); background: rgba(var(--accent-rgb),0.06); }

.result-summary {
    display: flex; gap: 10px; align-items: center; flex-wrap: wrap;
    font-weight: 600; margin-bottom: 16px;
}
.pill { padding: 4px 12px; border-radius: 20px; font-size: 0.82rem; font-weight: 600; }
.pill.ok  { background: rgba(var(--accent-rgb),0.15); color: #5eead4; }
.pill.err { background: rgba(239,68,68,0.15); color: #fca5a5; }
.pill.warn{ background: rgba(245,158,11,0.15); color: #fcd34d; }

.result-list { display: flex; flex-direction: column; gap: 8px; }
.result-item {
    display: flex; gap: 10px; align-items: flex-start;
    padding: 10px 14px; border-radius: 8px; font-size: 0.88rem; line-height: 1.5;
    border: 1px solid transparent;
}
.result-item .mk { flex-shrink: 0; font-weight: 700; }
.result-item.error { background: rgba(239,68,68,0.08); border-color: rgba(239,68,68,0.3); color: #fecaca; }
.result-item.error .mk { color: #f87171; }
.result-item.warn  { background: rgba(245,158,11,0.08); border-color: rgba(245,158,11,0.3); color: #fde68a; }
.result-item.warn .mk { color: #fbbf24; }
.result-item.ok    { background: rgba(var(--accent-rgb),0.08); border-color: rgba(var(--accent-rgb),0.3); color: #a7f3d0; }
.result-item.ok .mk { color: #5cf0ab; }
.result-empty { color: var(--text-muted); font-size: 0.9rem; }
.code-input.line-bad { border-color: rgba(239,68,68,0.6); }

/* Validator: vertical layout, wide input field */
.tool-stack { display: flex; flex-direction: column; gap: 24px; }
.tool-stack .code-input { min-height: 520px; }

/* Restyle: headings drop the gradient text in favour of a solid colour */
.hero-title,
.section-title {
    background: none !important;
    -webkit-text-fill-color: currentColor !important;
    color: #f3f7fc;
}
.tool-title { color: #f3f7fc; }

/* ==========================================================================
   Config builder (/tools/constructor.html)
   ========================================================================== */
.cons-wrap { max-width: 1320px; }
.cons-grid {
    display: grid;
    grid-template-columns: 500px minmax(0, 1fr); /* left column fixed so the preview does not shift */
    gap: 24px; align-items: start; justify-content: center;
}
#cons-form { min-width: 0; }
@media (max-width: 1240px) { .cons-grid { grid-template-columns: 1fr; } }

.cons-preview-col { position: sticky; top: 96px; min-width: 0; }
@media (max-width: 1240px) { .cons-preview-col { position: static; } }
.field .conv { color: var(--primary-light); font-weight: 500; }

.cons-section { margin-bottom: 14px; border: 1px solid var(--border-color); border-radius: var(--radius-md); background: var(--card-bg); overflow: hidden; }
.cons-sec-head {
    display: flex; align-items: center; justify-content: space-between;
    padding: 14px 18px; cursor: pointer; user-select: none;
    border-bottom: 1px solid transparent;
}
.cons-section.open .cons-sec-head { border-bottom-color: var(--border-color); }
.cons-sec-head .st { display: flex; flex-direction: column; gap: 2px; }
.cons-sec-head .st b { font-size: 0.98rem; font-weight: 600; }
.cons-sec-head .st small { font-size: 0.78rem; color: var(--text-muted); }
.cons-sec-head .chev { transition: transform .25s; color: var(--text-muted); }
.cons-section.open .cons-sec-head .chev { transform: rotate(180deg); }
.cons-sec-body { display: none; padding: 18px; flex-direction: column; gap: 14px; }
.cons-section.open .cons-sec-body { display: flex; }

.field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.field label { font-size: 0.85rem; font-weight: 500; color: var(--text-main); }
.field .hint { font-size: 0.76rem; color: var(--text-muted); }
.field input[type="text"], .field input[type="number"], .field select {
    background: #0a1322; border: 1px solid var(--border-color); border-radius: 7px;
    color: var(--text-main); padding: 9px 11px; font-family: var(--font-mono); font-size: 0.85rem;
    width: 100%; min-width: 0; box-sizing: border-box;
}
.field input:focus, .field select:focus { outline: none; border-color: var(--primary); }

/* Своя стрелка вместо системной: та прижимается вплотную к рамке и в тёмной
   теме выглядит инородно, а её вид к тому же разный в разных браузерах. */
.field select {
    appearance: none;
    -webkit-appearance: none;
    padding-right: 34px;
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    cursor: pointer;
}
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.field-row.wide-first { grid-template-columns: 2.6fr 1fr; }
@media (max-width: 480px) { .field-row, .field-row.wide-first { grid-template-columns: 1fr; } }

/* Предпросмотр надписи в шапке панели. Цвета и начертание взяты из самой
   панели (тема «OxidProxy Dark»): 24px, вес 700, вторая половина — акцентом.
   Иначе проверить брендирование можно только собрав конфиг и открыв
   дашборд, а ошибку вида «обе половины слились» видно сразу. */
.brand-pv { margin-top: 16px; }
.brand-pv-note { font-size: 0.72rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.06em; }
.brand-pv-bar {
    display: flex; align-items: center; justify-content: space-between; gap: 16px;
    background: #111217; border: 1px solid #2a2c35; border-radius: 8px;
    padding: 14px 18px; margin-top: 10px;
}
.brand-pv-mark {
    color: #c7d0d9; font-size: 24px; font-weight: 700; letter-spacing: -0.02em;
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.brand-pv-mark span { color: #29a365; }
.brand-pv-globe { color: #8e99a8; display: inline-flex; flex-shrink: 0; }
.brand-pv-globe:hover { color: #29a365; }
.brand-pv-globe.off { opacity: 0.35; pointer-events: none; }

.field-check { flex-direction: row; align-items: flex-start; gap: 10px; }
.field-check input { width: 18px; height: 18px; accent-color: var(--primary); flex-shrink: 0; margin-top: 2px; }
.field-check label { line-height: 1.45; }

.repeat-item {
    border: 1px solid var(--border-color); border-radius: 9px; padding: 14px;
    display: flex; flex-direction: column; gap: 12px; position: relative;
    background: rgba(148,163,184,0.03);
}
.repeat-item .rm {
    position: absolute; top: 8px; right: 8px; background: none; border: none;
    color: var(--text-muted); cursor: pointer; font-size: 1.1rem; line-height: 1; padding: 2px 6px; border-radius: 6px;
}
.repeat-item .rm:hover { color: #fca5a5; background: rgba(239,68,68,0.1); }
.btn-add {
    align-self: flex-start; background: rgba(var(--accent-rgb),0.1); border: 1px dashed rgba(var(--accent-rgb),0.4);
    color: var(--primary-light); padding: 8px 14px; border-radius: 7px; cursor: pointer; font-size: 0.85rem; font-weight: 500;
}
.btn-add:hover { background: rgba(var(--accent-rgb),0.16); }

.cons-preview { display: flex; flex-direction: column; }
.cons-preview .pv-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.cons-preview .pv-head h2 { font-size: 1rem; margin: 0; }
.cons-pre {
    background: #0a1322; border: 1px solid var(--border-color); border-radius: 8px;
    padding: 16px; font-family: var(--font-mono); font-size: 0.8rem; line-height: 1.55;
    color: #cbd5e1; white-space: pre; overflow: auto; max-height: 600px; margin: 0;
}
.cons-pre .c { color: #5b6b86; }
.cons-pre .k { color: var(--primary-light); }
.cons-pre .s { color: #5eead4; }
.cons-pre .n { color: #e0b15e; }
.cons-actions-bar { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 14px; }
.cons-issues { margin-top: 12px; }

/* Tool entries hidden until implemented (markup kept) */
.hidden-soon { display: none; }

/* ==========================================================================
   GLASS REDESIGN — depth and glass
   Translucent cards with blur, background glows, a left accent stripe
   as the system for flagship blocks. This layer is last and wins by cascade.
   ========================================================================== */

/* ---- Background glows behind all content ---- */
body { position: relative; }
body::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background:
        radial-gradient(640px 420px at 12% 18%, rgba(var(--accent-rgb), 0.07), transparent 70%),
        radial-gradient(560px 400px at 88% 38%, rgba(59, 130, 246, 0.06), transparent 70%),
        radial-gradient(700px 480px at 50% 92%, rgba(var(--accent-rgb), 0.05), transparent 70%);
}
.section-dark { background-color: rgba(14, 23, 41, 0.55); }

/* ---- One shared glass surface ---- */
.feature-card,
.pricing-card,
.download-box,
.changelog,
.api-endpoint,
.faq-item,
.collapsible-header,
.tool-card,
.cons-section {
    background: rgba(19, 31, 54, 0.45);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
    border: 1px solid rgba(255, 255, 255, 0.10);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.07),
        0 12px 32px -12px rgba(0, 0, 0, 0.6);
}
@supports not (backdrop-filter: blur(1px)) {
    .feature-card, .pricing-card, .download-box, .changelog,
    .api-endpoint, .faq-item, .collapsible-header, .tool-card, .cons-section {
        background: var(--card-bg);
    }
}

/* ---- Hover: lift plus a green glow along the outline ---- */
.feature-card:hover {
    transform: translateY(-5px);
    border-color: rgba(var(--accent-rgb), 0.5);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.10),
        0 0 0 1px rgba(var(--accent-rgb), 0.25),
        0 0 40px -8px rgba(var(--accent-rgb), 0.35),
        0 18px 44px -12px rgba(0, 0, 0, 0.7);
}
.feature-card.coming-soon { background: rgba(19, 31, 54, 0.25); }
.feature-card.coming-soon:hover {
    border-color: var(--border-color);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.07), 0 12px 32px -12px rgba(0, 0, 0, 0.6);
}
.pricing-card:hover {
    border-color: rgba(var(--accent-rgb), 0.5);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.10),
        0 0 0 1px rgba(var(--accent-rgb), 0.25),
        0 0 44px -8px rgba(var(--accent-rgb), 0.3),
        0 22px 52px -14px rgba(0, 0, 0, 0.75);
}
.collapsible-header:hover,
.faq-item.active {
    border-color: rgba(var(--accent-rgb), 0.5);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.08),
        0 0 32px -10px rgba(var(--accent-rgb), 0.3);
}

/* ---- Flagship cards: soft accent fill only, no stripe ---- */
.feature-card.highlight,
.pricing-card.featured {
    background: linear-gradient(120deg, rgba(var(--accent-rgb), 0.10), rgba(19, 31, 54, 0.45) 55%);
}
.changelog-item {
    border-left: none;
    padding-left: 0;
}

/* ---- Finishing touches ---- */
.feature-icon {
    background: radial-gradient(circle at 30% 25%, rgba(var(--accent-rgb), 0.28), rgba(var(--accent-rgb), 0.05));
    box-shadow: inset 0 0 0 1px rgba(var(--accent-rgb), 0.22);
}
.faq-question:hover { background: rgba(var(--accent-rgb), 0.06); }
.download-box, .changelog, .api-endpoint, .tool-card, .cons-section {
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

/* ---- Mobile: blur is expensive on the GPU, use a solid fill ---- */
@media (max-width: 768px) {
    .feature-card, .pricing-card, .download-box, .changelog,
    .api-endpoint, .faq-item, .collapsible-header, .tool-card, .cons-section {
        -webkit-backdrop-filter: none;
        backdrop-filter: none;
        background: var(--card-bg);
    }
    .feature-card.highlight,
    .pricing-card.featured {
        background: linear-gradient(120deg, rgba(var(--accent-rgb), 0.10), var(--card-bg) 55%);
    }
}

/* ---- Keyboard navigation: a visible focus ring in brand style ---- */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* ---- Respect the OS settings ---- */
@media (prefers-reduced-motion: reduce) {
    .feature-card:hover, .pricing-card:hover { transform: none; }
    .hero::before { animation: none; }
}


/* ---- Checksum table: alignment and emphasis ------------------------------
   Every cell is a single line, so the columns cannot go ragged. Sizes are
   right-aligned with tabular figures: "2.69 MB" and "58.46 MB" then line up
   on the decimal point instead of drifting apart. The package name carries
   the weight, the header is separated by a rule, and the whole table scrolls
   sideways on narrow screens rather than squeezing the hash into two lines.
   -------------------------------------------------------------------------- */
.checksums {
    width: 100%;
    table-layout: auto;
}
.checksums thead th {
    border-bottom: 2px solid var(--border-color);
    white-space: nowrap;
}
.checksums td {
    white-space: nowrap;
}
.checksums td:first-child {
    font-weight: 600;
}
.checksums td.md5 {
    white-space: nowrap;
    word-break: normal;
}
.checksums th:last-child,
.checksums td:last-child {
    text-align: right;
    font-variant-numeric: tabular-nums;
}
.checksums td:nth-child(2) {
    font-variant-numeric: tabular-nums;
}

@media (max-width: 560px) {
    /* Прокрутка вместо перелома хеша на две строки. */
    .checksums {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }
}