/* ============================================
   ИТ-ЖУКИ — Swiss Minimal Theme
   Принципы: сетка, тишина, один акцент, моно-детали
   ============================================ */

:root {
    --bg: #0F0B0A;
    --surface: #1A1311;
    --surface-2: #221916;
    --surface-3: #2C211D;
    --line: rgba(255, 255, 255, 0.07);
    --line-strong: rgba(255, 255, 255, 0.16);
    --text: #F6F1EE;
    --text-2: #B3A8A2;
    --text-3: #736B66;
    --accent: #FF5A1F;
    --accent-2: #FD5B9C;
    --accent-3: #F37D3A;
    --accent-soft: rgba(255, 90, 31, 0.10);
    --accent-line: rgba(255, 90, 31, 0.38);
    --accent-ink: #1A0500;
    --accent-gradient: linear-gradient(90deg, #FD5B9C 0%, #FF2905 50%, #F37D3A 100%);

    /* Полупрозрачные фоны навигации/карточек (адаптируются под тему) */
    --nav-bg: rgba(11, 13, 14, 0.6);
    --nav-bg-scrolled: rgba(15, 11, 10, 0.92);
    --mobile-menu-bg: rgba(11, 13, 14, 0.98);
    --spec-bg: rgba(26, 19, 17, 0.7);
    --ticker-bg: rgba(15, 11, 10, 0.6);

    --maxw: 1240px;
    --gut: 32px;
    --nav-h: 64px;
    --radius: 6px;
    --radius-lg: 10px;

    --ease: cubic-bezier(0.2, 0, 0, 1);
    --t-fast: 150ms var(--ease);
    --t: 220ms var(--ease);

    --mono: 'Geist Mono', 'JetBrains Mono', ui-monospace, 'SFMono-Regular', monospace;
    --sans: 'Geist', 'Onest', system-ui, -apple-system, 'Segoe UI', sans-serif;
}

/* ============================================
   СВЕТЛАЯ ТЕМА
   ============================================ */
[data-theme="light"] {
    --bg: #FAF7F3;
    --surface: #F1ECE5;
    --surface-2: #E8E1D7;
    --surface-3: #DED5C8;
    --line: rgba(20, 14, 10, 0.09);
    --line-strong: rgba(20, 14, 10, 0.18);
    --text: #1A1311;
    --text-2: #5C544E;
    --text-3: #8C847B;
    --accent: #F04E15;
    --accent-2: #E84B8E;
    --accent-3: #E2722E;
    --accent-soft: rgba(240, 78, 21, 0.08);
    --accent-line: rgba(240, 78, 21, 0.38);
    --accent-ink: #FFFFFF;
    --accent-gradient: linear-gradient(90deg, #E84B8E 0%, #E23A05 50%, #D86A26 100%);

    --nav-bg: rgba(250, 247, 243, 0.72);
    --nav-bg-scrolled: rgba(250, 247, 243, 0.92);
    --mobile-menu-bg: rgba(250, 247, 243, 0.98);
    --spec-bg: rgba(241, 236, 229, 0.75);
    --ticker-bg: rgba(241, 236, 229, 0.7);

    color-scheme: light;
}
[data-theme="dark"] { color-scheme: dark; }

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
[hidden] { display: none !important; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
    font-family: var(--sans);
    background: var(--bg);
    color: var(--text);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    overflow-x: hidden;
    transition: background-color 300ms var(--ease), color 300ms var(--ease);
}

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

a { color: inherit; text-decoration: none; transition: color var(--t-fast); }
img, svg { max-width: 100%; display: block; }
button { font-family: inherit; border: none; background: none; color: inherit; }
ul { list-style: none; }

.mono {
    font-family: var(--mono);
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-3);
    font-weight: 500;
}

.container {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 0 var(--gut);
}

/* Тонкая фоновая сетка — опциональна, очень слабая */
.bg-grid {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background-image:
        linear-gradient(var(--line) 1px, transparent 1px),
        linear-gradient(90deg, var(--line) 1px, transparent 1px);
    background-size: 80px 80px;
    mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 0%, transparent 70%);
    opacity: 0.5;
}

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    height: var(--nav-h, 64px);
    display: flex;
    align-items: center;
    background: var(--nav-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: background var(--t), border-color var(--t);
}
.nav.scrolled {
    background: var(--nav-bg-scrolled);
    border-bottom-color: var(--line);
}
.nav .container {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}
.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: -0.01em;
}
.nav-logo { height: 26px; width: auto; }
.footer-logo { height: 32px; width: auto; }
.nav-brand-mark {
    width: 28px; height: 28px;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius);
    display: grid;
    place-items: center;
    color: var(--accent);
    font-family: var(--mono);
    font-size: 0.8rem;
    font-weight: 600;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-left: auto;
}
.nav-link {
    font-size: 0.875rem;
    color: var(--text-2);
    padding: 8px 14px;
    border-radius: var(--radius);
    transition: color var(--t-fast), background var(--t-fast);
}
.nav-link:hover { color: var(--text); background: var(--surface); }

.nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 16px;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius);
    font-family: var(--mono);
    font-size: 0.8rem;
    letter-spacing: 0.02em;
    color: var(--text);
    transition: border-color var(--t-fast), color var(--t-fast);
}
.nav-cta::before {
    content: '';
    width: 6px; height: 6px;
    background: var(--accent-gradient);
    border-radius: 50%;
}
.nav-cta:hover { border-color: var(--accent-line); color: var(--accent); }

.nav-toggle {
    display: none;
    width: 40px; height: 40px;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius);
    align-items: center;
    justify-content: center;
}
.nav-toggle span {
    width: 16px; height: 1.5px;
    background: var(--text);
    position: relative;
}
.nav-toggle span::before, .nav-toggle span::after {
    content: '';
    position: absolute;
    left: 0; width: 16px; height: 1.5px;
    background: var(--text);
}
.nav-toggle span::before { top: -5px; }
.nav-toggle span::after { top: 5px; }

/* Theme toggle */
.theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px; height: 40px;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius);
    color: var(--text-2);
    cursor: pointer;
    flex-shrink: 0;
    transition: color var(--t-fast), border-color var(--t-fast), background var(--t-fast);
}
.theme-toggle:hover { color: var(--accent); border-color: var(--accent-line); background: var(--surface); }
.theme-toggle svg { width: 18px; height: 18px; }
.theme-toggle .icon-moon { display: none; }
[data-theme="light"] .theme-toggle .icon-sun { display: none; }
[data-theme="light"] .theme-toggle .icon-moon { display: block; }

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 13px 22px;
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: var(--radius);
    border: 1px solid transparent;
    transition: background var(--t-fast), border-color var(--t-fast), color var(--t-fast), transform var(--t-fast);
}
.btn:active { transform: translateY(1px); }

.btn-primary {
    background: var(--accent-gradient);
    color: #fff;
    font-weight: 600;
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.15) inset;
}
.btn-primary:hover { filter: brightness(1.08); }

.btn-secondary {
    background: transparent;
    border-color: var(--line-strong);
    color: var(--text);
}
.btn-secondary:hover { border-color: var(--text-2); background: var(--surface); }

.btn-arrow::after {
    content: '→';
    font-family: var(--mono);
    transition: transform var(--t-fast);
}
.btn-arrow:hover::after { transform: translateX(3px); }

/* ============================================
   HERO
   ============================================ */
.hero {
    position: relative;
    padding: 140px 0 80px;
    border-bottom: 1px solid var(--line);
}
.hero .container {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 64px;
    align-items: center;
}
.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 28px;
}
.hero-eyebrow .dot {
    width: 7px; height: 7px;
    background: var(--accent-gradient);
    border-radius: 50%;
    position: relative;
}
.hero-eyebrow .dot::after {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    border: 1px solid var(--accent-line);
}

.hero h1 {
    font-size: clamp(2.2rem, 5.2vw, 3.6rem);
    line-height: 1.05;
    letter-spacing: -0.03em;
    font-weight: 600;
    margin-bottom: 24px;
}
.hero h1 .accent {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}
.hero h1 .dim { color: var(--text-3); }

.hero-lead {
    font-size: 1.0625rem;
    color: var(--text-2);
    max-width: 520px;
    margin-bottom: 36px;
    line-height: 1.65;
}

.hero-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

/* Spec-карточка справа — инженерный стиль */
.spec {
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    background: var(--surface);
    overflow: hidden;
}
.spec-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 18px;
    border-bottom: 1px solid var(--line);
    background: var(--surface-2);
}
.spec-dots { display: flex; gap: 6px; }
.spec-dots span {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--surface-3);
}
.spec-body { padding: 6px 0; }
.spec-row {
    display: grid;
    grid-template-columns: 130px 1fr;
    gap: 16px;
    padding: 12px 18px;
    align-items: baseline;
    border-bottom: 1px solid var(--line);
}
.spec-row:last-child { border-bottom: none; }
.spec-key {
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-3);
}
.spec-val {
    font-size: 0.9rem;
    color: var(--text);
}
.spec-val .strong {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    font-weight: 600;
}

/* ============================================
   SECTION (общий каркас)
   ============================================ */
.section {
    position: relative;
    padding: 96px 0;
    border-bottom: 1px solid var(--line);
}
.section-head {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 48px;
    align-items: end;
    margin-bottom: 56px;
}
.section-num {
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-3);
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}
.section-num::before {
    content: '';
    width: 24px;
    height: 1px;
    background: var(--accent-gradient);
}
.section-head h2 {
    font-size: clamp(1.75rem, 3.2vw, 2.5rem);
    line-height: 1.1;
    letter-spacing: -0.025em;
    font-weight: 600;
    max-width: 14ch;
}
.section-head .section-desc {
    color: var(--text-2);
    font-size: 1rem;
    max-width: 50ch;
    padding-bottom: 6px;
}

/* ============================================
   FEATURES (Bento Swiss)
   ============================================ */
.features {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    overflow: hidden;
}
.feature {
    background: var(--bg);
    padding: 32px 28px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    transition: background var(--t-fast);
    min-height: 200px;
}
.feature:hover { background: var(--surface); }
.feature.large { grid-column: span 3; grid-row: span 2; min-height: 0; }
.feature.medium { grid-column: span 3; }
.feature.small { grid-column: span 2; }

.feature-num {
    font-family: var(--mono);
    font-size: 0.72rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    letter-spacing: 0.08em;
}
.feature-icon {
    width: 36px; height: 36px;
    color: var(--text-2);
    margin-bottom: 4px;
}
.feature.large .feature-icon { width: 44px; height: 44px; }
.feature-icon svg { width: 100%; height: 100%; }

.feature h3 {
    font-size: 1.0625rem;
    font-weight: 600;
    letter-spacing: -0.01em;
}
.feature.large h3 { font-size: 1.5rem; line-height: 1.2; }
.feature p {
    color: var(--text-2);
    font-size: 0.9rem;
    line-height: 1.6;
}
.feature.large p { font-size: 1rem; max-width: 42ch; }

/* ============================================
   PARTNERS
   ============================================ */
.partners {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--line);
    gap: 1px;
}
.partner {
    background: var(--bg);
    padding: 40px 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 130px;
    transition: background var(--t-fast);
}
.partner:hover { background: var(--surface); }
.partner-name {
    font-family: var(--mono);
    font-size: 0.85rem;
    letter-spacing: 0.04em;
    color: var(--text);
    text-align: center;
    line-height: 1.4;
}
.partner-name .sub {
    display: block;
    color: var(--text-3);
    font-size: 0.68rem;
    margin-top: 4px;
    letter-spacing: 0.08em;
}

/* ============================================
   SERVICES
   ============================================ */
.services {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--line);
    gap: 1px;
}
.service {
    background: var(--bg);
    padding: 32px 28px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    min-height: 220px;
    transition: background var(--t-fast);
}
.service:hover { background: var(--surface); }
.service-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
}
.service-top .mono { color: var(--text-3); }
.service h3 {
    font-size: 1.0625rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    margin-bottom: 4px;
}
.service p {
    color: var(--text-2);
    font-size: 0.9rem;
    line-height: 1.55;
    flex: 1;
}
.service-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 8px;
}
.tag {
    font-family: var(--mono);
    font-size: 0.68rem;
    letter-spacing: 0.04em;
    color: var(--text-2);
    border: 1px solid var(--line-strong);
    padding: 4px 8px;
    border-radius: 3px;
}

/* ============================================
   CASES
   ============================================ */
.cases {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}
.case {
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--surface);
    transition: border-color var(--t-fast);
}
.case:hover { border-color: var(--line-strong); }
.case-media {
    aspect-ratio: 16 / 10;
    background: var(--surface-2);
    position: relative;
    display: grid;
    place-items: center;
    border-bottom: 1px solid var(--line);
    overflow: hidden;
}
.case-media img {
    width: 100%; height: 100%;
    object-fit: cover;
}
.case-info {
    padding: 24px 24px 26px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.case-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 4px;
}
.case-info h3 {
    font-size: 1.0625rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    line-height: 1.3;
}
.case-info p {
    color: var(--text-2);
    font-size: 0.875rem;
    line-height: 1.55;
}

/* ============================================
   STATS
   ============================================ */
.stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--line);
    gap: 1px;
}
.stat {
    background: var(--bg);
    padding: 40px 28px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.stat-num {
    font-size: clamp(2.2rem, 4vw, 3rem);
    font-weight: 600;
    letter-spacing: -0.04em;
    line-height: 1;
    font-family: var(--sans);
    font-variant-numeric: tabular-nums;
}
.stat-num .suffix {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}
.stat-label {
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-3);
}

/* ============================================
   CTA
   ============================================ */
.cta-band {
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    background:
        radial-gradient(ellipse 60% 100% at 100% 0%, var(--accent-soft), transparent 60%),
        var(--surface);
    padding: 64px 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    flex-wrap: wrap;
}
.cta-band h2 {
    font-size: clamp(1.5rem, 2.6vw, 2rem);
    letter-spacing: -0.025em;
    font-weight: 600;
    max-width: 18ch;
    line-height: 1.15;
}
.cta-band p { color: var(--text-2); margin-top: 8px; max-width: 50ch; }

/* ============================================
   FAQ
   ============================================ */
.faq {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    overflow: hidden;
}
.faq-item {
    background: var(--bg);
    padding: 28px 28px;
    transition: background var(--t-fast);
}
.faq-item:hover { background: var(--surface); }
.faq-item details { display: block; }
.faq-q {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    cursor: pointer;
    font-weight: 500;
    font-size: 1rem;
    line-height: 1.4;
    letter-spacing: -0.01em;
    list-style: none;
}
.faq-q::-webkit-details-marker { display: none; }
.faq-q::before {
    content: 'Q';
    font-family: var(--mono);
    font-size: 0.72rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    margin-top: 4px;
    flex-shrink: 0;
}
.faq-item details[open] .faq-q { margin-bottom: 12px; }
.faq-a {
    color: var(--text-2);
    font-size: 0.9rem;
    line-height: 1.6;
    padding-left: 26px;
}

/* ============================================
   CONTACTS
   ============================================ */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--line);
    gap: 1px;
}
.contact {
    background: var(--bg);
    padding: 36px 32px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    transition: background var(--t-fast);
}
.contact:hover { background: var(--surface); }
.contact-key {
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-3);
}
.contact-val {
    font-size: 1.25rem;
    font-weight: 500;
    letter-spacing: -0.01em;
    color: var(--text);
}
.contact-val a:hover { color: var(--accent); }
.contact-hint {
    font-size: 0.85rem;
    color: var(--text-3);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    padding: 72px 0 40px;
    background: var(--bg);
    border-top: 1px solid var(--line);
}
.footer-grid {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 64px;
    margin-bottom: 56px;
}
.footer-brand-col { display: flex; flex-direction: column; gap: 20px; }
.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 4px;
}
.footer-brand img { height: 24px; }
.footer-desc {
    color: var(--text-2);
    font-size: 0.9rem;
    max-width: 42ch;
    line-height: 1.6;
}
.footer-contacts {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 8px;
}
.footer-contacts a {
    font-family: var(--mono);
    font-size: 0.85rem;
    color: var(--text-2);
}
.footer-contacts a:hover { color: var(--accent); }
.footer-social {
    display: flex;
    gap: 8px;
    margin-top: 12px;
}
.social-btn {
    width: 36px; height: 36px;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius);
    display: grid;
    place-items: center;
    color: var(--text-2);
    transition: color var(--t-fast), border-color var(--t-fast);
}
.social-btn:hover { color: var(--accent); border-color: var(--accent-line); }
.social-btn svg { width: 16px; height: 16px; }

.footer-req-col h4 {
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-3);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--line);
}
.req-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
}
.req-item {
    background: var(--bg);
    padding: 14px 16px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.req-k {
    font-family: var(--mono);
    font-size: 0.65rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-3);
}
.req-v {
    font-size: 0.825rem;
    color: var(--text-2);
    line-height: 1.4;
}
.req-item--full { grid-column: 1 / -1; }
.requisites-ready .req-item--detail { display: none; }
.req-list.show-all .req-item--detail { display: flex; }

.toggle-requisites {
    width: 100%;
    margin-top: 12px;
    padding: 10px 16px;
    background: transparent;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    color: var(--text-2);
    font-family: var(--mono);
    font-size: 0.7rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}
.toggle-requisites:hover { color: var(--accent); border-color: var(--accent-line); }
.toggle-requisites::after {
    content: '▾';
    font-size: 0.7rem;
    transition: transform 0.3s ease;
}
.toggle-requisites.expanded::after { transform: rotate(180deg); }

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid var(--line);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}
.footer-bottom p {
    font-family: var(--mono);
    font-size: 0.72rem;
    color: var(--text-3);
    letter-spacing: 0.04em;
}
.footer-bottom a {
    font-family: var(--mono);
    font-size: 0.72rem;
    color: var(--text-3);
}
.footer-bottom a:hover { color: var(--accent); }

/* ============================================
   UTILS
   ============================================ */
.scroll-progress {
    position: fixed;
    top: 0; left: 0;
    height: 2px;
    width: 0;
    background: var(--accent-gradient);
    z-index: 1100;
    transition: width 80ms linear;
}
.back-top {
    position: fixed;
    bottom: 24px; right: 24px;
    width: 40px; height: 40px;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius);
    background: var(--surface);
    color: var(--text);
    display: grid;
    place-items: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--t), visibility var(--t), border-color var(--t-fast), color var(--t-fast);
    z-index: 900;
}
.back-top.visible { opacity: 1; visibility: visible; }
.back-top:hover { color: var(--accent); border-color: var(--accent-line); }

.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--accent);
    color: var(--accent-ink);
    padding: 10px 18px;
    font-family: var(--mono);
    font-size: 0.8rem;
    z-index: 2000;
    transition: top 200ms;
}
.skip-link:focus { top: 0; }

/* Reveal — сдержанно */
.reveal { opacity: 1; transform: none; transition: opacity 500ms var(--ease), transform 500ms var(--ease); }
.reveal.reveal-pending { opacity: 0; transform: translateY(16px); }
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
    * { animation: none !important; transition: none !important; }
    html { scroll-behavior: auto; }
    .reveal.reveal-pending { opacity: 1; transform: none; }
}

/* ============================================
    RESPONSIVE
    ============================================ */
@media (max-width: 980px) {
    .nav-menu {
        position: fixed;
        top: var(--nav-h, 64px); left: 0; right: 0;
        background: var(--mobile-menu-bg);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        flex-direction: column;
        align-items: stretch;
        padding: 16px;
        gap: 4px;
        border-bottom: 1px solid var(--line);
        display: none;
        max-height: calc(100vh - var(--nav-h, 64px));
        overflow-y: auto;
    }
    .nav-menu.open { display: flex; }
    .nav-link { padding: 12px 14px; }
    .nav-cta { justify-content: center; margin-top: 8px; }
    .nav-toggle { display: inline-flex; }
    .theme-toggle { margin-left: auto; order: 1; }
    .nav-toggle { order: 2; }

    /* Navigation stays available when the script is blocked or unavailable. */
    html:not(.menu-ready) .nav { position: relative; height: auto; min-height: var(--nav-h); }
    html:not(.menu-ready) .nav .container { flex-wrap: wrap; padding-top: 16px; padding-bottom: 16px; }
    html:not(.menu-ready) .nav-menu {
        position: static;
        display: flex;
        flex-direction: row;
        flex-wrap: wrap;
        width: 100%;
        order: 3;
        margin: 0;
        padding: 0;
        max-height: none;
        background: transparent;
        border: 0;
    }
    html:not(.menu-ready) .nav-toggle { display: none; }
}

@media (max-width: 1024px) {
    :root { --gut: 24px; }
    .hero .container { grid-template-columns: 1fr; gap: 40px; }
    .section-head { grid-template-columns: 1fr; gap: 20px; align-items: start; }
    .features { grid-template-columns: repeat(2, 1fr); }
    .feature.large { grid-column: span 2; grid-row: span 1; }
    .feature.medium { grid-column: span 2; }
    .feature.small { grid-column: span 1; }
    .partners { grid-template-columns: repeat(2, 1fr); }
    .services { grid-template-columns: repeat(2, 1fr); }
    .cases { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 768px) {
    :root { --gut: 20px; }

    .hero { padding: 110px 0 60px; }
    .hero-actions { flex-direction: column; align-items: stretch; }
    .hero-actions .btn { width: 100%; }

    .section { padding: 64px 0; }

    .features { grid-template-columns: 1fr; }
    .feature.large, .feature.medium, .feature.small { grid-column: span 1; }
    .partners { grid-template-columns: 1fr 1fr; }
    .services { grid-template-columns: 1fr; }
    .stats { grid-template-columns: 1fr 1fr; }
    .faq { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .req-list { grid-template-columns: 1fr; }

    .cta-band { padding: 40px 24px; flex-direction: column; align-items: flex-start; }

    .footer-bottom { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
    .spec-row { grid-template-columns: 1fr; gap: 4px; }
    .partners { grid-template-columns: 1fr; }
    .stats { grid-template-columns: 1fr; }
}