/* ==========================================================================
   ГК СУ-555 — ОРИГИНАЛЬНЫЙ ВАРИАНТ 3 (Светло-тёмная комбинированная схема)
   ========================================================================== */

:root {
    --primary-blue: #2563EB;
    --primary-dark-teal: #024554;   /* Бирюзово-синий акцент Варианта 3 */
    --accent-cyan: #38BDF8;
    
    /* Тёмные зоны (Hero, Метрики, География, Футер) */
    --bg-dark-page: #081722;
    --bg-dark-card: #0F2738;
    --text-dark-primary: #F8FAFC;
    --text-dark-secondary: #94A3B8;
    
    /* Светлые зоны (О компании, Услуги, Портфолио, Партнеры, Новости) */
    --bg-light-page: #FFFFFF;
    --bg-light-section: #F3F4F6;
    --bg-light-card: #FFFFFF;
    --text-light-primary: #0F172A;
    --text-light-secondary: #475569;
    --border-light: #E2E8F0;
    
    --border-dark: rgba(148, 163, 184, 0.15);
    
    /* Скругления по референсу 3_СУ-555.png */
    --radius-card: 20px;
    --radius-banner: 28px;
    --radius-pill: 9999px;
    
    --font-mono: 'Roboto Mono', monospace;
    --font-sans: 'Roboto', -apple-system, BlinkMacSystemFont, sans-serif;
    
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Base Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-dark-page);
    color: var(--text-dark-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: all var(--transition-fast); }
ul { list-style: none; }
button { font-family: inherit; border: none; background: none; cursor: pointer; }

.container {
    width: 100%;
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}

@media (max-width: 767px) {
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
        width: 95%;
    }
}

/* Typography & Section Titles */
h1, .hero-v3-title {
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -0.02em;
    color: #FFFFFF;
}

h2, .section-title {
    font-size: 2.2rem;
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-light-primary);
}

.text-white { color: #FFFFFF !important; }

.section-tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    color: var(--primary-dark-teal);
    text-transform: uppercase;
    margin-bottom: 0.75rem;
}

.section-tag-dark {
    color: var(--accent-cyan);
}

/* Buttons System */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    min-height: 2.75rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: var(--radius-pill);
    transition: all var(--transition-base);
    white-space: nowrap;
    cursor: pointer;
}

.btn-primary, .btn-filled {
    background-color: var(--primary-dark-teal);
    color: #FFFFFF;
}

.btn-primary:hover, .btn-filled:hover {
    background-color: #013440;
    box-shadow: 0 4px 20px rgba(2, 69, 84, 0.4);
    transform: translateY(-2px);
}

.btn-outline {
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: #FFFFFF;
}

.btn-outline:hover {
    border-color: #FFFFFF;
    background: rgba(255, 255, 255, 0.1);
}

/* Background Tech Grid (Only for Dark Hero) */
.bg-tech-grid {
    position: fixed;
    top: 0; left: 0; width: 100vw; height: 100vh;
    pointer-events: none; z-index: 0; opacity: 0.25;
    background: 
        radial-gradient(circle 280px at 50% 50%, rgba(56, 189, 248, 0.08) 0%, transparent 100%),
        linear-gradient(to right, rgba(148, 163, 184, 0.05) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(148, 163, 184, 0.05) 1px, transparent 1px);
    background-size: 100% 100%, 48px 48px, 48px 48px;
}

/* Header (Transparent on top, dark blurred on scroll) */
.header {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: 5rem;
    display: flex;
    align-items: center;
    z-index: 100;
    background: transparent;
    backdrop-filter: none;
    border-bottom: 1px solid transparent;
    transition: all var(--transition-fast);
}

.header.scrolled {
    height: 4.25rem;
    background: rgba(8, 23, 34, 0.94);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-dark);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}

.logo { flex-shrink: 0; }
.logo-img { height: 2.25rem; width: auto; filter: brightness(0) invert(1); }

.nav-list { display: flex; align-items: center; gap: 1.75rem; }
.nav-link { font-size: 0.875rem; font-weight: 500; color: var(--text-dark-secondary); white-space: nowrap; }
.nav-link:hover { color: #FFFFFF; }

.header-contacts {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    flex-shrink: 0;
    white-space: nowrap;
}

.header-phone {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: 700;
    color: #FFFFFF;
    white-space: nowrap;
    display: inline-block;
}

.burger-menu { display: none; flex-direction: column; gap: 5px; cursor: pointer; }
.burger-bar { width: 24px; height: 2px; background: #FFFFFF; }

@media (max-width: 991px) {
    .burger-menu { display: flex; }
    .header-contacts .btn { display: none; }
    .nav {
        position: fixed; top: 5rem; left: 0; right: 0;
        background: var(--bg-dark-card);
        padding: 2rem 1.5rem;
        transform: translateY(-150%);
        transition: transform var(--transition-base);
        border-bottom: 1px solid var(--border-dark);
    }
    .nav.active { transform: translateY(0); }
    .nav-list { flex-direction: column; align-items: flex-start; gap: 1.25rem; }
}

/* HERO SECTION (Original Dark Split Screen) */
.hero-v3 {
    position: relative;
    padding-top: 7.5rem;
    padding-bottom: 4rem;
    min-height: 90vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background-color: var(--bg-dark-page);
}

.hero-v3-container {
    position: relative;
    z-index: 2;
    width: 100%;
}

.hero-v3-content {
    max-width: 560px;
}

.hero-v3-subtitle {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--accent-cyan);
    margin-bottom: 1rem;
}

.hero-v3-description {
    font-size: 1.05rem;
    color: var(--text-dark-secondary);
    margin-top: 1.25rem;
    margin-bottom: 2rem;
    max-width: 520px;
}

.hero-v3-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.hero-v3-visual-full {
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    z-index: 1;
}

.monolith-card-full {
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: 0 !important; /* Важное правило: фото на банере не скругляется! */
    overflow: hidden;
    border-left: 1px solid var(--border-dark);
}

.hero-video-bg {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; z-index: 1;
}

.monolith-card-img-full {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; z-index: 0;
}

.monolith-card-overlay-full {
    position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(8, 23, 34, 0.3) 0%, rgba(8, 23, 34, 0.7) 100%);
    z-index: 2;
}

.monolith-card-info-full {
    position: absolute; bottom: 2.5rem; left: 2.5rem; z-index: 10;
}
.card-mono-tag { font-family: var(--font-mono); font-size: 0.8rem; color: var(--accent-cyan); display: block; margin-bottom: 0.25rem; }
.card-mono-title { font-size: 1.75rem; font-weight: 800; color: #FFFFFF; }

@media (max-width: 991px) {
    .hero-v3 { flex-direction: column; padding-top: 6.5rem; min-height: auto; }
    .hero-v3-visual-full { position: relative; width: 100%; height: 380px; margin-top: 2rem; }
    .hero-v3-content { max-width: 100%; }
}

/* METRICS BAR (Dark Background) */
.metrics-bar-v3 {
    padding-top: 3rem;
    padding-bottom: 4rem;
    position: relative;
    z-index: 2;
    background-color: var(--bg-dark-page);
    border-bottom: 1px solid var(--border-dark);
}

.metrics-v3-container {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1rem;
}

.metric-v3-block.rounded-card {
    background: var(--bg-dark-card);
    border: 1px solid var(--border-dark);
    border-radius: var(--radius-card);
    padding: 1.5rem 1rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: transform var(--transition-base);
}

.metric-v3-block.rounded-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent-cyan);
}

.metric-v3-num {
    font-family: var(--font-mono);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--accent-cyan);
    line-height: 1.1;
    white-space: nowrap;
}

.metric-v3-text {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--text-dark-secondary);
    margin-top: 0.75rem;
    margin-bottom: 1rem;
}

.metric-v3-progress {
    height: 3px;
    background: transparent;
    border-radius: 2px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    width: 100% !important;
    background: linear-gradient(90deg, #2563EB, #38BDF8);
    border-radius: 2px;
}

@media (max-width: 1200px) { .metric-v3-num { font-size: 1.5rem; } }
@media (max-width: 1024px) { .metrics-v3-container { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 640px) { .metrics-v3-container { grid-template-columns: repeat(2, 1fr); } }

/* ABOUT SECTION (Original Light Section) */
.about-v3 {
    padding-top: 5rem;
    padding-bottom: 5rem;
    background-color: var(--bg-light-page);
    color: var(--text-light-primary);
}

.about-v3-container {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-v3-text {
    margin-top: 1.25rem;
    margin-bottom: 2rem;
    color: var(--text-light-secondary);
}
.about-v3-text p + p { margin-top: 0.75rem; }

.about-v3-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.about-v3-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: #F8FAFC;
    padding: 0.85rem 1rem;
    border-radius: 14px;
    border: 1px solid var(--border-light);
}

.about-v3-icon { color: var(--primary-dark-teal); flex-shrink: 0; }
.about-v3-item-title { font-size: 0.85rem; font-weight: 600; color: var(--text-light-primary); }

.photo-frame-container.rounded-card {
    position: relative;
    border-radius: var(--radius-banner);
    overflow: hidden;
    height: 480px;
    border: 1px solid var(--border-light);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.about-v3-img { width: 100%; height: 100%; object-fit: cover; }

.badge-v3 {
    position: absolute;
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 0.65rem 1rem;
    border-radius: 12px;
    color: #FFFFFF;
}
.badge-v3-top { top: 1.5rem; right: 1.5rem; }
.badge-v3-bottom { bottom: 1.5rem; left: 1.5rem; }
.badge-v3-num { font-family: var(--font-mono); font-size: 1.25rem; font-weight: 700; color: #38BDF8; display: block; }
.badge-v3-label { font-family: var(--font-mono); font-size: 0.65rem; color: #94A3B8; }

@media (max-width: 991px) {
    .about-v3-container { grid-template-columns: 1fr; gap: 2.5rem; }
    .photo-frame-container.rounded-card { height: 340px; }
}

/* SERVICES SECTION (Original Light Section with Accent Card) */
.services-v3 {
    padding-top: 5rem;
    padding-bottom: 5rem;
    background-color: var(--bg-light-section);
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
    color: var(--text-light-primary);
}

.services-v3-header {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.services-v3-header-right p { color: var(--text-light-secondary); }

.services-v3-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
    margin-bottom: 3rem;
}

/* Светлые карточки услуг — фиксированная высота исключает скачки макета */
.service-v3-card.rounded-card {
    background: var(--bg-light-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-card);
    padding: 1.75rem 1.25rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 260px;
    transition: background-color 0.4s cubic-bezier(0.16, 1, 0.3, 1),
                border-color 0.4s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.4s cubic-bezier(0.16, 1, 0.3, 1),
                box-shadow 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.03);
    position: relative;
    overflow: hidden;
}

.service-v3-num {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--primary-dark-teal);
    margin-bottom: 0.5rem;
    transition: color 0.3s ease;
}

.service-v3-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-light-primary);
    margin-bottom: 0.5rem;
    transition: color 0.3s ease;
}

/* Описание всплывает плавно без дерганий и скачков размеров */
.service-v3-hidden-desc {
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    pointer-events: none;
}

.service-v3-hidden-desc p {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.88);
    margin-bottom: 0.75rem;
    line-height: 1.45;
}

.service-v3-link {
    font-size: 0.85rem;
    font-weight: 600;
    color: #FFFFFF;
}

/* Динамический :hover — карточка перекрашивается и плавно проявляет описание */
.service-v3-card.rounded-card:hover {
    background: var(--primary-dark-teal) !important;
    border-color: var(--primary-dark-teal) !important;
    transform: translateY(-6px);
    box-shadow: 0 16px 35px rgba(2, 69, 84, 0.3);
}

.service-v3-card.rounded-card:hover .service-v3-num { color: var(--accent-cyan) !important; }
.service-v3-card.rounded-card:hover .service-v3-title { color: #FFFFFF !important; }

.service-v3-card.rounded-card:hover .service-v3-hidden-desc {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

/* Роли внизу услуг */
.services-v3-roles {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
}

.role-block-v3.rounded-card {
    background: #FFFFFF;
    border: 1px solid var(--border-light);
    border-radius: 16px;
    padding: 1.25rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all var(--transition-fast);
    box-shadow: 0 2px 8px rgba(0,0,0,0.02);
}

.role-block-v3.rounded-card:hover {
    border-color: var(--primary-dark-teal);
    background: #F8FAFC;
}

.role-mono-num { font-family: var(--font-mono); font-size: 0.8rem; color: var(--primary-dark-teal); }
.role-block-v3-title { display: block; font-weight: 700; color: var(--text-light-primary); }
.role-block-v3-desc { display: block; font-size: 0.8rem; color: var(--text-light-secondary); }
.role-block-v3-arrow { color: var(--primary-dark-teal); font-size: 1.25rem; }

@media (max-width: 1024px) {
    .services-v3-grid { grid-template-columns: repeat(2, 1fr); }
    .services-v3-roles { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
    .services-v3-grid { grid-template-columns: 1fr; }
}

/* PORTFOLIO SECTION (Original Light Section) */
.portfolio-v3 {
    padding-top: 5rem;
    padding-bottom: 5rem;
    background-color: var(--bg-light-page);
    color: var(--text-light-primary);
}

.portfolio-v3-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: 2rem;
}

.portfolio-v3-all-link { font-size: 0.9rem; font-weight: 600; color: var(--primary-dark-teal); }

.portfolio-v3-filters {
    display: flex; gap: 0.5rem; margin-bottom: 2.5rem; flex-wrap: wrap;
}

.filter-v3-btn {
    padding: 0.5rem 1.25rem;
    font-size: 0.85rem; font-weight: 600;
    border-radius: var(--radius-pill);
    background: #F1F5F9;
    color: var(--text-light-secondary);
    border: 1px solid var(--border-light);
    transition: all var(--transition-fast);
}

.filter-v3-btn.active, .filter-v3-btn:hover {
    background: var(--primary-dark-teal);
    color: #FFFFFF;
    border-color: var(--primary-dark-teal);
}

.portfolio-v3-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.portfolio-v3-card.rounded-card {
    background: #FFFFFF;
    border-radius: var(--radius-card);
    overflow: hidden;
    border: 1px solid var(--border-light);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    transition: transform var(--transition-base);
}

.portfolio-v3-card.rounded-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-dark-teal);
}

.portfolio-v3-img-container {
    position: relative;
    height: 240px;
    overflow: hidden;
}

.portfolio-v3-img { width: 100%; height: 100%; object-fit: cover; }

.portfolio-v3-badge {
    position: absolute; top: 1rem; left: 1rem;
    font-size: 0.75rem; font-weight: 700;
    padding: 0.35rem 0.85rem;
    border-radius: var(--radius-pill);
}
.status-completed { background: #059669; color: #FFF; }
.status-in-progress { background: #0284C7; color: #FFF; }

.portfolio-v3-info { padding: 1.5rem; }
.portfolio-v3-category { font-family: var(--font-mono); font-size: 0.7rem; color: var(--primary-dark-teal); }
.portfolio-v3-card-title { font-size: 1.2rem; font-weight: 700; color: var(--text-light-primary); margin-top: 0.35rem; margin-bottom: 1rem; }

.portfolio-v3-accordion {
    border-top: 1px solid var(--border-light);
    padding-top: 0.75rem;
}

.accordion-trigger {
    width: 100%;
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-light-secondary);
    cursor: pointer;
}

.accordion-trigger:hover { color: var(--primary-dark-teal); }

.accordion-content {
    display: none;
    margin-top: 0.75rem;
    background: #F8FAFC;
    padding: 0.75rem;
    border-radius: 8px;
}

.portfolio-v3-accordion.active .accordion-content { display: block; }

.specs-table-v3 {
    width: 100%;
    font-size: 0.8rem;
    color: var(--text-light-secondary);
}
.specs-table-v3 td { padding: 0.25rem 0; }
.specs-table-v3 td:last-child { text-align: right; color: var(--text-light-primary); font-weight: 600; }

@media (max-width: 991px) {
    .portfolio-v3-grid { grid-template-columns: 1fr; }
}

/* GEOGRAPHY & REGIONAL CLUSTERS (Original Dark Section) */
.geography-v3 {
    position: relative;
    padding-top: 5rem;
    padding-bottom: 5rem;
    overflow: hidden;
    background-color: var(--bg-dark-page);
    color: #FFFFFF;
}

.geography-v3-bg-container { position: absolute; inset: 0; z-index: 0; }
.geography-v3-bg-img { width: 100%; height: 100%; object-fit: cover; }
.geography-v3-overlay { position: absolute; inset: 0; background: rgba(8, 23, 34, 0.88); }

.geography-v3-container {
    position: relative; z-index: 2;
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 4rem;
    align-items: center;
}

.geography-v3-desc { margin-top: 1rem; margin-bottom: 2rem; color: var(--text-dark-secondary); }

.geography-v3-clusters {
    display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem;
}

.mono-cluster-card.rounded-card {
    background: rgba(15, 39, 56, 0.9);
    backdrop-filter: blur(8px);
    border: 1px solid var(--border-dark);
    border-radius: var(--radius-card);
    padding: 1.5rem;
}

.mono-cluster-title { font-weight: 700; color: #FFFFFF; display: block; font-size: 0.95rem; }
.mono-cluster-num { font-family: var(--font-mono); font-size: 0.75rem; color: var(--accent-cyan); margin-top: 0.25rem; display: block; }

.mono-cluster-body { margin-top: 1rem; }
.mono-cluster-projects-label { font-size: 0.75rem; color: #64748B; display: block; margin-bottom: 0.5rem; }
.mono-cluster-projects li { font-size: 0.8rem; color: var(--text-dark-secondary); margin-bottom: 0.35rem; position: relative; padding-left: 0.85rem; }
.mono-cluster-projects li::before { content: '•'; position: absolute; left: 0; color: var(--accent-cyan); }

@media (max-width: 991px) {
    .geography-v3-container { grid-template-columns: 1fr; gap: 2.5rem; }
    .geography-v3-clusters { grid-template-columns: 1fr; }
}

/* PARTNERS MARQUEE (Light Strip) */
.partners-v3 {
    width: 100%;
    padding-top: 3.5rem;
    padding-bottom: 3.5rem;
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
    background: #F8FAFC;
    overflow: hidden;
}

.partners-v3-tag {
    display: block;
    text-align: center;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-light-secondary);
    margin-bottom: 1.75rem;
}

.marquee-container {
    width: 100%;
    overflow: hidden;
    position: relative;
}

.marquee-track {
    display: flex;
    gap: 5rem;
    width: max-content;
    animation: marquee 20s linear infinite;
}

.marquee-group {
    display: flex;
    gap: 5rem;
    align-items: center;
}

.partner-logo {
    font-size: 1.35rem;
    font-weight: 800;
    color: #64748B;
    letter-spacing: -0.01em;
}

@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-33.333%); }
}

/* NEWS SECTION (Original Light Section) */
.news-v3 {
    padding-top: 5rem;
    padding-bottom: 5rem;
    background-color: var(--bg-light-page);
    color: var(--text-light-primary);
}

.news-v3-header { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 2.5rem; }
.news-v3-all-link { font-size: 0.9rem; font-weight: 600; color: var(--primary-dark-teal); }

.news-v3-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }

.news-v3-card.rounded-card {
    background: #FFFFFF;
    border-radius: var(--radius-card);
    overflow: hidden;
    border: 1px solid var(--border-light);
    box-shadow: 0 4px 20px rgba(0,0,0,0.04);
}

.news-v3-img-container { height: 180px; overflow: hidden; position: relative; }
.news-v3-img { width: 100%; height: 100%; object-fit: cover; }
.news-v3-content { padding: 1.25rem 1.5rem 1.5rem 1.5rem; }
.news-v3-meta { display: flex; gap: 0.75rem; align-items: center; margin-bottom: 0.5rem; }
.news-v3-tag { font-family: var(--font-mono); font-size: 0.7rem; color: var(--primary-dark-teal); }
.news-v3-date { font-size: 0.8rem; color: var(--text-light-secondary); }
.news-v3-card-title { font-size: 1rem; font-weight: 600; color: var(--text-light-primary); line-height: 1.4; }

@media (max-width: 991px) { .news-v3-grid { grid-template-columns: 1fr; } }

/* CTA BANNER ("Готовы обсудить ваш проект" — ИЗ 3_СУ-555.png) */
.cta-section-wrapper {
    width: 100%;
    padding-top: 2rem;
    padding-bottom: 5rem;
    background-color: var(--bg-light-page);
}

.cta-banner-v3.rounded-card {
    position: relative;
    background: linear-gradient(135deg, #024554 0%, #013440 100%);
    border-radius: var(--radius-banner);
    padding: 4rem 3.5rem;
    overflow: hidden;
    color: #FFFFFF;
    box-shadow: 0 16px 40px rgba(2, 69, 84, 0.25);
    width: 100%;
}

.cta-v3-pattern-555 {
    position: absolute;
    right: 2rem; bottom: -3rem;
    font-size: 18rem; font-weight: 900;
    color: rgba(255, 255, 255, 0.05);
    letter-spacing: -0.05em;
    user-select: none; pointer-events: none;
    line-height: 1;
}

.cta-v3-container {
    position: relative; z-index: 2;
    display: flex; align-items: center; justify-content: space-between;
    gap: 2.5rem; padding: 0; max-width: 100%;
}

.cta-v3-title { font-size: 2.2rem; font-weight: 800; color: #FFFFFF; margin-bottom: 0.5rem; }
.cta-v3-desc { font-size: 1.05rem; color: rgba(255, 255, 255, 0.85); max-width: 520px; }

.cta-v3-actions { display: flex; align-items: center; gap: 1.25rem; flex-wrap: wrap; }

.btn-white {
    background-color: #FFFFFF;
    color: #024554;
    font-weight: 700;
    padding: 0.85rem 1.75rem;
    min-height: 3rem;
    border-radius: var(--radius-pill);
}

.btn-white:hover {
    background-color: #F8FAFC;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.btn-arrow-circle {
    display: inline-flex; align-items: center; justify-content: center;
    width: 1.75rem; height: 1.75rem; border-radius: 50%;
    background: #024554; color: #FFFFFF; font-size: 0.9rem; margin-left: 0.5rem;
}

.cta-v3-phone {
    display: inline-flex; align-items: center;
    padding: 0.85rem 1.5rem; min-height: 3rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-pill);
    color: #FFFFFF; font-weight: 600;
    transition: all var(--transition-fast);
}

.cta-v3-phone:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.6);
}

@media (max-width: 991px) {
    .cta-banner-v3.rounded-card { padding: 2.5rem 1.75rem; }
    .cta-v3-container { flex-direction: column; align-items: flex-start; }
    .cta-v3-title { font-size: 1.6rem; }
}

/* Footer (Original Dark Footer) */
.footer-v3 { background: #051018; color: var(--text-dark-secondary); padding-top: 4rem; padding-bottom: 2rem; border-top: 1px solid var(--border-dark); }
.footer-v3-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 3rem; padding-bottom: 3rem; border-bottom: 1px solid rgba(255, 255, 255, 0.1); }
.footer-v3-logo-img { height: 2.25rem; margin-bottom: 1rem; filter: brightness(0) invert(1); }
.footer-v3-address { font-size: 0.875rem; line-height: 1.5; margin-bottom: 1rem; }
.footer-v3-phone { display: block; font-family: var(--font-mono); font-size: 1.1rem; font-weight: 700; color: #FFFFFF; margin-bottom: 0.25rem; }
.footer-v3-email { font-size: 0.9rem; color: var(--accent-cyan); }
.footer-v3-col-title { font-family: var(--font-mono); font-size: 0.75rem; color: #FFFFFF; margin-bottom: 1.25rem; }
.footer-v3-links li { margin-bottom: 0.65rem; }
.footer-v3-links a { font-size: 0.875rem; color: var(--text-dark-secondary); }
.footer-v3-links a:hover { color: #FFFFFF; }
.footer-v3-dept-list li { margin-bottom: 0.75rem; }
.footer-v3-dept-name { display: block; font-size: 0.75rem; color: #64748B; }
.footer-v3-dept-phone { font-family: var(--font-mono); font-size: 0.875rem; color: #E2E8F0; }
.btn-outline-white { display: inline-flex; align-items: center; margin-top: 1rem; padding: 0.5rem 1rem; font-size: 0.85rem; border: 1px solid var(--border-dark); border-radius: var(--radius-pill); color: #FFFFFF; }

.footer-v3-bottom { padding-top: 1.5rem; }
.footer-v3-bottom-container { display: flex; justify-content: space-between; font-size: 0.8rem; color: #64748B; }

@media (max-width: 860px) {
    .footer-v3-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
    .footer-v3-bottom-container { flex-direction: column; gap: 0.5rem; }
}

/* Modals */
.modal {
    position: fixed; inset: 0; background: rgba(8, 23, 34, 0.85); backdrop-filter: blur(8px);
    display: flex; align-items: center; justify-content: center; z-index: 1000;
    opacity: 0; pointer-events: none; transition: opacity var(--transition-fast);
}
.modal.active { opacity: 1; pointer-events: auto; }
.modal-dialog {
    width: 90%; max-width: 520px; background: #FFFFFF; color: var(--text-light-primary);
    border-radius: var(--radius-card); border: 1px solid var(--border-light);
    padding: 2rem; position: relative; transform: translateY(20px); transition: transform var(--transition-base);
    box-shadow: 0 20px 50px rgba(0,0,0,0.3);
}
.modal.active .modal-dialog { transform: translateY(0); }
.modal-close { position: absolute; top: 1.25rem; right: 1.25rem; font-size: 1.5rem; color: var(--text-light-secondary); cursor: pointer; }
.modal-title { font-size: 1.5rem; font-weight: 700; color: var(--text-light-primary); margin-bottom: 0.35rem; }
.modal-subtitle { font-size: 0.875rem; color: var(--text-light-secondary); margin-bottom: 1.5rem; }
.modal-form { display: flex; flex-direction: column; gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: 0.35rem; }
.form-group label { font-size: 0.85rem; color: var(--text-light-primary); }
.form-input { width: 100%; padding: 0.75rem 1rem; border: 1px solid var(--border-light); border-radius: 8px; background: #F8FAFC; color: var(--text-light-primary); }
.form-input:focus { border-color: var(--primary-dark-teal); outline: none; }
.form-group-checkbox { display: flex; align-items: center; gap: 0.5rem; font-size: 0.8rem; color: var(--text-light-secondary); }
.btn-block { width: 100%; margin-top: 0.5rem; }
.form-success { display: none; text-align: center; padding: 2rem 0; }
.success-icon { color: #059669; margin-bottom: 1rem; }

/* Scroll reveal triggers */
.slide-up { opacity: 0; transform: translateY(24px); transition: opacity 0.6s var(--transition-base), transform 0.6s var(--transition-base); }
.slide-left { opacity: 0; transform: translateX(-24px); transition: opacity 0.6s var(--transition-base), transform 0.6s var(--transition-base); }
.slide-right { opacity: 0; transform: translateX(24px); transition: opacity 0.6s var(--transition-base), transform 0.6s var(--transition-base); }
.slide-up.active, .slide-left.active, .slide-right.active { opacity: 1; transform: translate(0); }