@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
    --primary-color: #e74c3c;
    --primary-gradient: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%);
    --secondary-color: #c0392b;
    --text-color: #2c3e50;
    --text-light: #7f8c8d;
    --background-color: #ffffff;
    --surface-color: #f8f9fa;
    --border-color: #e9ecef;
    --shadow: 0 10px 30px rgba(0,0,0,0.08);
    --shadow-hover: 0 20px 40px rgba(0,0,0,0.12);
    --border-radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.7;
    color: var(--text-color);
    background-color: var(--background-color);
    font-size: 16px;
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Header с эффектом стекла */
header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    position: fixed;
    width: 100%;
    z-index: 1000;
    transition: var(--transition);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

nav .logo {
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

nav ul {
    display: none;
    list-style: none;
    gap: 2rem;
}

nav ul li a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

nav ul li a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background: var(--primary-gradient);
    transition: var(--transition);
}

nav ul li a:hover::after {
    width: 100%;
}

/* Hero секция с градиентом */
.hero {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 6rem 2rem 4rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd"><g fill="%23e74c3c" fill-opacity="0.03"><circle cx="30" cy="30" r="2"/></g></g></svg>');
    opacity: 0.5;
}

.hero-content {
    flex: 1;
    max-width: 600px;
    z-index: 2;
    position: relative;
}

.hero-content h1 {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.8s ease-out;
}

.hero-content p {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.cta-button {
    display: inline-block;
    background: var(--primary-gradient);
    color: white;
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    box-shadow: var(--shadow);
    transition: var(--transition);
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.hero-image {
    flex: 1;
    max-width: 500px;
    height: auto;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.hero-image:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-hover);
}

/* Секции */
section {
    padding: 5rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
    color: var(--text-color);
}

h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--primary-gradient);
    border-radius: 2px;
}

/* About секция */
.about-content .about-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    color: var(--text-light);
}

/* Services секция */
.services {
    background-color: var(--surface-color);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 2.5rem;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transition: var(--transition);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    border-radius: 50%;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.service-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

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

.service-card p {
    color: var(--text-light);
    line-height: 1.7;
}

/* Testimonials секция */
.testimonials {
    background: linear-gradient(135deg, var(--surface-color) 0%, white 100%);
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.testimonial-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 2.5rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: 1rem;
    left: 2rem;
    font-size: 4rem;
    color: var(--primary-color);
    opacity: 0.3;
    font-weight: bold;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.testimonial-card blockquote {
    font-style: italic;
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

.testimonial-card cite {
    font-weight: 600;
    color: var(--primary-color);
}

/* Contact секция */
.contact {
    background-color: var(--surface-color);
}

.contact-container {
    display: grid;
    gap: 3rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
    background-color: white;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.1);
}

.contact-form textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-form button {
    background: var(--primary-gradient);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.contact-form button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.contact-info {
    background: white;
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.contact-info h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

.contact-info p {
    margin-bottom: 1rem;
    color: var(--text-light);
    font-size: 1.1rem;
}

/* Footer */
footer {
    background: linear-gradient(135deg, var(--text-color) 0%, #34495e 100%);
    color: white;
    text-align: center;
    padding: 2rem;
}

.footer-links {
    margin-top: 1rem;
    display: flex;
    justify-content: center;
    gap: 2rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: white;
}

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

/* Media queries для responsive дизайна */
@media screen and (min-width: 768px) {
    nav ul {
        display: flex;
    }

    .hero {
        padding: 8rem 2rem 6rem;
        flex-direction: row;
        gap: 4rem;
    }

    .hero-content {
        text-align: left;
    }

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

@media screen and (min-width: 1024px) {
    .contact-container {
        grid-template-columns: 2fr 1fr;
    }
    
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Эффекты скроллинга */
@media (prefers-reduced-motion: no-preference) {
    .service-card,
    .testimonial-card {
        opacity: 0;
        transform: translateY(30px);
        animation: fadeInUp 0.6s ease-out forwards;
    }
    
    .service-card:nth-child(1) { animation-delay: 0.1s; }
    .service-card:nth-child(2) { animation-delay: 0.2s; }
    .service-card:nth-child(3) { animation-delay: 0.3s; }
}