/* Загальні стилі */
:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --dark-bg: #111827;
    --dark-secondary: #1f2937;
    --light-text: #f3f4f6;
    --gray-text: #9ca3af;
    --container-width: 1200px;
}

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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.5;
    color: var(--light-text);
    background: var(--dark-bg);
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1rem;
}

/* Шапка */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--dark-secondary);
    box-shadow: 0 2px 4px rgba(0,0,0,0.3);
    z-index: 1000;
    padding: 1rem 0;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

nav {
    display: flex;
    gap: 2rem;
}

nav a {
    text-decoration: none;
    color: var(--gray-text);
    font-weight: 500;
    transition: color 0.3s;
}

nav a:hover {
    color: var(--light-text);
}

/* Головний банер */
.hero {
    padding: 8rem 0 4rem;
    background: var(--dark-bg);
}

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

.hero-content h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.hero-content h2,
.hero-content h3 {
    font-size: 2rem;
    margin-bottom: 2rem;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 0.5rem;
    transition: background 0.3s;
}

.cta-button:hover {
    background: var(--secondary-color);
}

/* Статистика */
.stats {
    padding: 4rem 0;
    background: var(--dark-secondary);
}

.stats .container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 3rem;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1.1rem;
    color: var(--gray-text);
}

/* Про нас */
.about {
    padding: 6rem 0;
    background: var(--dark-bg);
}

.about .container {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 4rem;
    align-items: start;
}

.about-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.about-content .highlight {
    font-size: 1.25rem;
    color: var(--primary-color);
    margin-bottom: 2rem;
    line-height: 1.6;
    opacity: 0.8;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.feature-item {
    background: var(--dark-secondary);
    padding: 1.5rem;
    border-radius: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.2);
}

.feature-item h3 {
    color: var(--primary-color);
    font-size: 1.25rem;
    margin-bottom: 1rem;
    position: relative;
}

.feature-item h3:after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    width: 50px;
    height: 2px;
    background: var(--primary-color);
    opacity: 0.5;
}

.feature-item p {
    color: var(--gray-text);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.feature-item ul {
    list-style: none;
    padding: 0;
}

.feature-item ul li {
    color: var(--gray-text);
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.feature-item ul li:before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

.achievement-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.achievement-item {
    background: var(--dark-secondary);
    padding: 1.5rem;
    border-radius: 1rem;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: transform 0.3s ease;
}

.achievement-item:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.2);
}

.achievement-number {
    display: block;
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.achievement-label {
    display: block;
    color: var(--gray-text);
    font-size: 1rem;
    line-height: 1.4;
}

.about-images {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.about-images img {
    width: 100%;
    border-radius: 1rem;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

/* Технологічний стек */
.tech-stack {
    padding: 6rem 0;
    background: var(--dark-secondary);
}

.tech-stack h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 4rem;
    color: var(--primary-color);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 2rem;
}

.tech-item {
    text-align: center;
    padding: 1.5rem;
    border-radius: 1rem;
    background: var(--dark-bg);
    transition: transform 0.3s;
}

.tech-item:hover {
    transform: translateY(-10px);
}

.tech-item img {
    width: 64px;
    height: 64px;
    margin-bottom: 1rem;
}

.tech-item span {
    font-weight: 500;
}

/* Послуги */
.services {
    padding: 6rem 0;
    background: var(--dark-bg);
}

.services h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 4rem;
    color: var(--primary-color);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.service-item {
    padding: 2rem;
    background: var(--dark-secondary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.4);
    border-color: rgba(255, 255, 255, 0.2);
}

.img_icon_block {
    margin-bottom: 1.5rem;
}

.img_icon_block img {
    width: 48px;
    height: 48px;
    filter: brightness(0) saturate(100%) invert(80%) sepia(50%) saturate(500%) hue-rotate(100deg) brightness(150%);
}

.service-item h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
    font-weight: 600;
}

.service-item p {
    color: var(--gray-text);
    line-height: 1.6;
    font-size: 1rem;
}

/* Портфоліо */
.portfolio {
    padding: 6rem 0;
    background: var(--dark-bg);
}

.portfolio h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 4rem;
    color: var(--light-text);
}

.portfolio-slider {
    margin: 0 auto;
    max-width: 1000px;
    padding: 0 20px;
}

.portfolio-item {
    position: relative;
    margin: 0 10px;
    border-radius: 20px;
    overflow: hidden;
    background: var(--dark-secondary);
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
    height: 700px;
}

.portfolio-item img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
}

.portfolio-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1rem;
    text-align: center;
    background: rgba(31, 41, 55, 0.95);
    backdrop-filter: blur(5px);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.2rem;
}

.portfolio-content h3 {
    color: var(--primary-color);
    font-size: 1.6rem;
    margin: 0;
    font-weight: 600;
}

.portfolio-content p:first-of-type {
    color: var(--light-text);
    font-size: 1rem;
    margin: 0;
    font-weight: 500;
}

.portfolio-content p:last-of-type {
    color: var(--gray-text);
    margin: 0.2rem 0;
    font-size: 0.9rem;
    line-height: 1.3;
    max-width: 90%;
}

.portfolio-link {
    display: inline-block;
    padding: 0.4rem 1.5rem;
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 25px;
    margin-top: 0.3rem;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.portfolio-link:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
}

/* Відгуки */
.reviews {
    padding: 6rem 0;
    background: var(--dark-secondary);
}

.reviews h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 4rem;
    color: var(--light-text);
}

.reviews-item {
    padding: 2rem;
    background: var(--dark-bg);
    border-radius: 1rem;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    margin: 0 1rem;
}

.reviews-item p {
    font-style: italic;
    margin-bottom: 1rem;
    color: var(--gray-text);
}

.reviews-item h4 {
    color: var(--primary-color);
    font-weight: 500;
}

/* Футер і контакти */
footer {
    padding: 6rem 0 0;
    background: var(--dark-bg);
    color: white;
}

.contact-title {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    text-align: center;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    justify-content: center;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.contact-item img {
    width: 24px;
    height: 24px;
    filter: brightness(0) invert(1);
}

.contact-item span {
    font-size: 1.1rem;
}

.contact-form {
    background: var(--dark-secondary);
    padding: 2rem;
    border-radius: 0.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: white;
}

.form-group input {
    width: 100%;
    padding: 0.75rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 0.25rem;
    color: white;
    font-size: 1rem;
}

.form-group input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.submit-button {
    width: 100%;
    padding: 1rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 0.25rem;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.3s;
    margin-bottom: 1rem;
}

.submit-button:hover {
    background: var(--secondary-color);
}

.form-note {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
    text-align: center;
}

.footer-bottom {
    background: rgba(0, 0, 0, 0.3);
    padding: 2rem 0;
    margin-top: 2rem;
    text-align: center;
}

.footer-bottom h3 {
    font-size: 1.5rem;
    font-weight: 500;
}

/* Адаптивність */
@media (max-width: 1024px) {
    .container {
        max-width: 100%;
        padding: 0 2rem;
    }

    .tech-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .about .container {
        grid-template-columns: 1fr;
    }
    
    .about-features {
        grid-template-columns: 1fr;
    }
    
    .achievement-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

@media (max-width: 768px) {
    .hero .container,
    .services-grid {
        grid-template-columns: 1fr;
    }

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

    nav {
        display: none;
    }

    .achievement-grid {
        grid-template-columns: 1fr;
    }
    
    .feature-item {
        padding: 1rem;
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .portfolio-content p {
        min-height: auto;
    }
}

@media (max-width: 480px) {
    .stats .container {
        grid-template-columns: 1fr;
    }

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

/* Анімації */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease-out forwards;
}

/* Анімація шапки */
.header {
    transition: all 0.3s ease;
}

.header.scrolled {
    background: rgba(17, 24, 39, 0.9);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.header.scrolled .logo {
    transform: scale(0.9);
}

.header.scrolled nav a {
    font-size: 0.9rem;
}

/* Слайдер стилі */
.slick-dots {
    bottom: -40px;
}

.slick-dots li button:before {
    font-size: 12px;
    color: var(--primary-color);
    opacity: 0.3;
}

.slick-dots li.slick-active button:before {
    opacity: 1;
}

.slick-prev,
.slick-next {
    width: 40px;
    height: 40px;
    z-index: 1;
}

.slick-prev {
    left: -30px;
}

.slick-next {
    right: -30px;
}

@media (max-width: 768px) {
    .portfolio-slider {
        padding: 0;
    }
    
    .slick-prev {
        left: 10px;
    }
    
    .slick-next {
        right: 10px;
    }
}

@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .contact-info {
        text-align: center;
        align-items: center;
    }
}