/* ===== CSS Variables ===== */
:root {
    --bg-primary: #0a1929;
    --bg-secondary: #132f4c;
    --text-primary: #e0f7fa;
    --text-secondary: #b2dfdb;
    --accent-yellow: #ffb703;
    --accent-teal: #00c9b6;
    --glass-bg: rgba(18, 30, 45, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --neon-glow: 0 0 10px rgba(0, 201, 182, 0.3);
    --radius: 16px;
    --transition: all 0.3s ease;
    --font-main: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

/* ===== Reset & Base ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: var(--font-main);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}
a {
    color: var(--accent-teal);
    text-decoration: none;
    transition: var(--transition);
}
a:hover {
    color: var(--accent-yellow);
}
img {
    max-width: 100%;
    display: block;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ===== Typography ===== */
h1, h2, h3, h4 {
    font-family: var(--font-mono);
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 1rem;
}
.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}
.section-title::after {
    content: '';
    position: absolute;
    width: 60%;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-teal), var(--accent-yellow));
    bottom: -10px;
    left: 20%;
    border-radius: 3px;
}

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    backdrop-filter: blur(10px);
    background: rgba(10, 25, 41, 0.8);
    border-bottom: 1px solid var(--glass-border);
    transition: var(--transition);
}
.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
}
.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-yellow);
    font-family: var(--font-mono);
}
.logo-icon {
    font-size: 1.8rem;
    color: var(--accent-teal);
    filter: drop-shadow(0 0 6px var(--accent-teal));
}
.nav-list {
    display: flex;
    list-style: none;
    gap: 2rem;
}
.nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
}
.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-teal);
    transition: var(--transition);
}
.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}
.nav-link.active {
    color: var(--accent-yellow);
}
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
}
.menu-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
}

/* ===== Hero ===== */
.hero {
    background: linear-gradient(135deg, var(--bg-primary) 0%, #0f273d 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: 5rem;
}
.hero-bg-grid {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(0, 201, 182, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 201, 182, 0.1) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(circle at 50% 50%, black 40%, transparent 70%);
    pointer-events: none;
}
.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    position: relative;
    z-index: 2;
}
.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    margin-bottom: 1.5rem;
    color: #fff;
    line-height: 1.1;
}
.highlight {
    color: var(--accent-yellow);
    text-shadow: 0 0 20px rgba(255, 183, 3, 0.5);
}
.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}
.circuit-animation {
    animation: float 4s ease-in-out infinite;
    max-width: 80%;
    margin-left: auto;
}
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: 0.9rem 2.2rem;
    border-radius: 2.5rem;
    font-weight: 600;
    font-size: 1rem;
    letter-spacing: 0.5px;
    transition: var(--transition);
    text-align: center;
    cursor: pointer;
    border: none;
    text-decoration: none;
}
.btn-primary {
    background: linear-gradient(135deg, var(--accent-teal), #00897b);
    color: #fff;
    box-shadow: 0 4px 15px rgba(0, 201, 182, 0.4);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 201, 182, 0.6);
    color: #fff;
}
.btn-outline {
    background: transparent;
    border: 2px solid var(--accent-teal);
    color: var(--accent-teal);
}
.btn-outline:hover {
    background: var(--accent-teal);
    color: var(--bg-primary);
}

/* ===== Advantages ===== */
.advantages {
    padding: 5rem 0;
    background: var(--bg-secondary);
}
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}
.feature-card {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(5px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 2rem;
    text-align: center;
    transition: var(--transition);
}
.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--neon-glow);
    border-color: var(--accent-teal);
}
.card-icon {
    font-size: 2.5rem;
    color: var(--accent-yellow);
    margin-bottom: 1rem;
}

/* ===== Popular Services ===== */
.popular-services {
    padding: 5rem 0;
}
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}
.service-card {
    display: block;
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 2rem;
    transition: var(--transition);
    color: var(--text-primary);
}
.service-card:hover {
    border-color: var(--accent-teal);
    box-shadow: var(--neon-glow);
    transform: scale(1.03);
    color: var(--text-primary);
}
.service-card i {
    font-size: 2rem;
    color: var(--accent-yellow);
    margin-bottom: 1rem;
}

/* ===== Latest Posts ===== */
.latest-posts {
    padding: 5rem 0;
    background: var(--bg-secondary);
}
.posts-preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}
.post-preview {
    background: var(--glass-bg);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--glass-border);
    transition: var(--transition);
}
.post-preview:hover {
    box-shadow: var(--neon-glow);
}
.post-image img {
    height: 200px;
    object-fit: cover;
    width: 100%;
}
.post-preview h4 {
    padding: 1rem 1.5rem 0;
}
.post-preview h4 a {
    color: var(--text-primary);
}
.post-preview p {
    padding: 0 1.5rem 1.5rem;
    color: var(--text-secondary);
}

/* ===== Footer ===== */
.footer {
    background: linear-gradient(180deg, #0a1929 0%, #020b12 100%);
    border-top: 2px solid var(--accent-teal);
    padding: 4rem 0 1.5rem;
}
.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}
.footer-brand p {
    margin-top: 1rem;
    color: var(--text-secondary);
}
.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}
.social-links a {
    font-size: 1.5rem;
    color: var(--text-secondary);
}
.social-links a:hover {
    color: var(--accent-teal);
}
.footer h4 {
    margin-bottom: 1rem;
    color: var(--accent-yellow);
}
.footer ul {
    list-style: none;
    color: var(--text-secondary);
}
.footer ul li {
    margin-bottom: 0.7rem;
}
.footer-bottom {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ===== Glass Card (для услуг, портфолио и блога) ===== */
.card-glass {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    transition: var(--transition);
}
.card-glass:hover {
    box-shadow: var(--neon-glow);
    border-color: var(--accent-teal);
}

/* ===== Breadcrumbs, Pagination ===== */
.breadcrumb {
    display: flex;
    list-style: none;
    gap: 0.5rem;
    margin-bottom: 2rem;
    color: var(--text-secondary);
}
.breadcrumb a {
    color: var(--accent-teal);
}
.pagination {
    display: flex;
    list-style: none;
    gap: 0.5rem;
    justify-content: center;
}
.pagination li a, .pagination li span {
    padding: 0.5rem 1rem;
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: var(--text-primary);
}
.pagination .active span {
    background: var(--accent-teal);
    border-color: var(--accent-teal);
    color: var(--bg-primary);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .circuit-animation {
        margin: 0 auto;
        max-width: 60%;
    }
    .nav-list {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        flex-direction: column;
        background: rgba(10, 25, 41, 0.95);
        backdrop-filter: blur(20px);
        gap: 1.5rem;
        padding: 2rem;
    }
    .nav-list.active {
        display: flex;
    }
    .menu-toggle {
        display: flex;
    }
}
/* Общие секции */
.page-section {
    padding: 5rem 0;
}

/* О нас */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}
.about-text .lead {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}
.rounded-image {
    border-radius: var(--radius);
    width: 100%;
    box-shadow: var(--neon-glow);
}
.stats-grid {
    display: flex;
    justify-content: space-around;
    margin-top: 4rem;
    text-align: center;
}
.stat-number {
    font-family: var(--font-mono);
    font-size: 2.5rem;
    color: var(--accent-yellow);
    display: block;
}
.stat-label {
    color: var(--text-secondary);
}

/* Контакты */
.contacts-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}
.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 0.8rem;
    margin-bottom: 1rem;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: var(--text-primary);
}
.contact-details,
.working-hours {
    list-style: none;
    color: var(--text-secondary);
}
.contact-details li,
.working-hours li {
    margin-bottom: 0.8rem;
}

/* Портфолио */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}
.portfolio-card {
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
}
.portfolio-card:hover {
    box-shadow: var(--neon-glow);
    transform: translateY(-5px);
}
.portfolio-img {
    width: 100%;
    height: 220px;
    object-fit: cover;
}
.portfolio-card-body {
    padding: 1.5rem;
}
.main-image {
    width: 100%;
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
}
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 1rem;
}
.gallery-item img {
    width: 100%;
    border-radius: 8px;
    transition: var(--transition);
}
.gallery-item:hover img {
    transform: scale(1.03);
}
.project-detail-grid {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 3rem;
}
.project-sidebar .info-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 1.5rem;
    position: sticky;
    top: 100px;
}
.project-sidebar ul {
    list-style: none;
    color: var(--text-secondary);
}
.project-sidebar li {
    margin-bottom: 0.8rem;
}

/* Блог */
.blog-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 3rem;
}
.blog-posts-grid {
    display: grid;
    gap: 2rem;
}
.post-preview {
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    overflow: hidden;
}
.post-preview-body {
    padding: 1.5rem;
}
.post-meta {
    color: var(--accent-teal);
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
}
.post-tags .tag,
.tags-cloud .tag {
    display: inline-block;
    background: rgba(0, 201, 182, 0.1);
    color: var(--accent-teal);
    padding: 0.2rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    margin: 0.2rem;
}
.article-hero {
    width: 100%;
    border-radius: var(--radius);
    margin-bottom: 2rem;
}
.article-meta {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}
.article-content {
    color: var(--text-primary);
    line-height: 1.8;
}
.sidebar-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 2rem;
}
.sidebar-list {
    list-style: none;
}
.sidebar-list li {
    margin-bottom: 0.5rem;
}
.sidebar-list a {
    color: var(--text-secondary);
}
.sidebar-list a:hover {
    color: var(--accent-yellow);
}

/* Пагинация */
.pagination-container {
    margin-top: 2rem;
}

/* Адаптив */
@media (max-width: 768px) {
    .about-grid,
    .contacts-grid,
    .project-detail-grid,
    .blog-layout {
        grid-template-columns: 1fr;
    }
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    .stats-grid {
        flex-direction: column;
        gap: 2rem;
    }
}
/* ===== Hero Collage ===== */
.hero-image-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-collage {
    display: grid;
    grid-template-columns: repeat(3, 200px);
    grid-template-rows: repeat(2, 180px);
    gap: 1rem;
    position: relative;
    z-index: 2;
}

.collage-item {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5);
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    animation: fadeInUp 0.6s ease forwards;
    opacity: 0;
    animation-delay: calc(var(--i) * 0.1s);
}

.collage-item:nth-child(1) {
    grid-column: 1 / 2;
    grid-row: 1 / 2;
    transform: rotate(-3deg);
}

.collage-item:nth-child(2) {
    grid-column: 2 / 3;
    grid-row: 1 / 3;
    transform: rotate(2deg);
}

.collage-item:nth-child(3) {
    grid-column: 3 / 4;
    grid-row: 1 / 2;
    transform: rotate(-1deg);
}

.collage-item:nth-child(4) {
    grid-column: 1 / 2;
    grid-row: 2 / 3;
    transform: rotate(1deg);
}

.collage-item:nth-child(5) {
    grid-column: 3 / 4;
    grid-row: 2 / 3;
    transform: rotate(-2deg);
}

/* Если проектов больше 5, для шестого и далее оставляем стандартное поведение */
.collage-item:nth-child(n+6) {
    grid-column: span 1;
    grid-row: span 1;
    transform: rotate(0);
}

.collage-item:hover {
    transform: scale(1.05) rotate(0deg) !important;
    box-shadow: 0 12px 35px rgba(0, 201, 182, 0.4);
    z-index: 10;
}

.collage-item img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius);
    transition: transform 0.5s ease;
}

.collage-item:hover img {
    transform: scale(1.08);
}

/* Анимация появления */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Адаптация для мобильных */
@media (max-width: 768px) {
    .hero-image-wrapper {
        margin-top: 2rem;
    }

    .hero-collage {
        grid-template-columns: repeat(2, 1fr);
        grid-template-rows: repeat(3, 150px);
        width: 100%;
    }

    .collage-item:nth-child(1),
    .collage-item:nth-child(2),
    .collage-item:nth-child(3),
    .collage-item:nth-child(4),
    .collage-item:nth-child(5) {
        grid-column: span 1;
        grid-row: span 1;
        transform: rotate(0);
    }
}

/* Запасная заглушка (hero-circuit) – оставляем стили из предыдущей версии */
.hero-image {
    text-align: center;
}
.circuit-animation {
    max-width: 400px;
    animation: float 4s ease-in-out infinite; /*делаем */
}