/* Google Fonts - безплатен шрифт */
@import url('https://fonts.googleapis.com/css2?family=Inter:opsz,wght@14..32,400;14..32,600;14..32,700;14..32,800&display=swap');

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

:root {
    --bg-primary: #0b0d15;
    --bg-secondary: #12151f;
    --text-primary: #eaeef2;
    --text-secondary: #a6b0c0;
    --accent: #00d4ff;
    --accent-dark: #0090b3;
    --card-bg: #1a1f2b;
    --border-color: #2a3040;
}

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.highlight {
    color: var(--accent);
}

.tag {
    display: inline-block;
    background: var(--accent);
    color: var(--bg-primary);
    font-weight: 700;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    padding: 4px 14px;
    border-radius: 20px;
    margin-bottom: 12px;
}

/* ========= HEADER / NAV ========= */
header {
    padding: 18px 0;
    background: rgba(11, 13, 21, 0.85);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 999;
}

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

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: -1px;
}
.logo i {
    color: var(--accent);
    margin-right: 8px;
}
.logo span {
    color: var(--accent);
}

nav ul {
    display: flex;
    list-style: none;
    gap: 30px;
    align-items: center;
}

nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 600;
    transition: 0.3s;
}
nav a:hover {
    color: var(--text-primary);
}

.btn-nav {
    background: var(--accent);
    color: var(--bg-primary) !important;
    padding: 8px 22px;
    border-radius: 30px;
    font-weight: 700;
}
.btn-nav:hover {
    background: var(--accent-dark);
    color: #fff !important;
}

.hamburger {
    display: none;
    font-size: 1.8rem;
    cursor: pointer;
    color: var(--text-primary);
}

/* ========= HERO ========= */
#hero {
    padding: 80px 0 60px;
    background: radial-gradient(circle at 30% 30%, #141b29, #0b0d15 70%);
    border-bottom: 1px solid var(--border-color);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.hero-content h1 {
    font-size: 3.2rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 20px;
}

.hero-content p {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
    max-width: 550px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.btn-primary {
    background: var(--accent);
    color: var(--bg-primary);
    padding: 14px 32px;
    border-radius: 40px;
    font-weight: 700;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    border: none;
    cursor: pointer;
    transition: 0.3s;
}
.btn-primary:hover {
    background: var(--accent-dark);
    color: #fff;
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.2);
}

.btn-secondary {
    background: transparent;
    border: 2px solid var(--border-color);
    color: var(--text-primary);
    padding: 14px 32px;
    border-radius: 40px;
    font-weight: 600;
    text-decoration: none;
    transition: 0.3s;
}
.btn-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.hero-image {
    text-align: center;
}
.hero-image img {
    max-width: 100%;
    filter: drop-shadow(0 20px 40px rgba(0, 212, 255, 0.15));
    animation: float 4s ease-in-out infinite;
}

@keyframes float {
    0% { transform: translateY(0); }
    50% { transform: translateY(-16px); }
    100% { transform: translateY(0); }
}

/* ========= SERVICES ========= */
#services {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}
.section-header h2 {
    font-size: 2.6rem;
    font-weight: 800;
}
.section-header p {
    color: var(--text-secondary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-card {
    background: var(--card-bg);
    padding: 35px 25px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    transition: 0.3s;
    text-align: center;
}
.service-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent);
    box-shadow: 0 10px 40px rgba(0, 212, 255, 0.05);
}

.service-card .icon {
    font-size: 2.8rem;
    color: var(--accent);
    margin-bottom: 16px;
}
.service-card h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
}
.service-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ========= STATS ========= */
#stats {
    padding: 70px 0;
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    text-align: center;
}

.stat-item h3 {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--accent);
}
.stat-item p {
    color: var(--text-secondary);
    font-weight: 600;
}

/* ========= ABOUT ========= */
#about {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-content h2 {
    font-size: 2.5rem;
    font-weight: 800;
}
.about-content p {
    color: var(--text-secondary);
    margin: 16px 0;
}

.about-image {
    background: var(--card-bg);
    border-radius: 20px;
    height: 320px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 8rem;
    color: var(--accent);
    border: 1px solid var(--border-color);
}

/* ========= CONTACT ========= */
#contact {
    padding: 80px 0;
    background: var(--bg-primary);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info h2 {
    font-size: 2.5rem;
    font-weight: 800;
}
.contact-info p {
    color: var(--text-secondary);
    margin: 16px 0 30px;
}
.contact-info ul {
    list-style: none;
}
.contact-info ul li {
    margin-bottom: 18px;
    font-size: 1.1rem;
}
.contact-info ul li i {
    color: var(--accent);
    width: 30px;
    font-size: 1.4rem;
}

.contact-form {
    background: var(--card-bg);
    padding: 40px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
}
.form-group {
    margin-bottom: 20px;
}
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    transition: 0.3s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}
.form-group textarea {
    resize: vertical;
}

#formMessage {
    margin-top: 16px;
    font-weight: 600;
    color: var(--accent);
}

/* ========= FOOTER ========= */
footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 50px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo i {
    color: var(--accent);
    font-size: 2rem;
    margin-right: 8px;
}
.footer-logo span {
    color: var(--accent);
}
.footer-logo p {
    color: var(--text-secondary);
    margin-top: 10px;
}

.footer-links h4,
.footer-social h4 {
    margin-bottom: 16px;
    font-size: 1.1rem;
}
.footer-links ul {
    list-style: none;
}
.footer-links ul li {
    margin-bottom: 10px;
}
.footer-links ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: 0.3s;
}
.footer-links ul li a:hover {
    color: var(--accent);
}

.footer-social a {
    color: var(--text-secondary);
    font-size: 1.4rem;
    margin-right: 18px;
    transition: 0.3s;
}
.footer-social a:hover {
    color: var(--accent);
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ========= RESPONSIVE ========= */
@media (max-width: 992px) {
    .hero-grid, .about-grid, .contact-grid {
        grid-template-columns: 1fr;
    }
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-content {
        grid-template-columns: 1fr;
    }
    .hero-content h1 {
        font-size: 2.5rem;
    }
}

@media (max-width: 700px) {
    nav ul {
        display: none;
    }
    .hamburger {
        display: block;
    }
    .services-grid {
        grid-template-columns: 1fr;
    }
    .contact-form {
        padding: 24px;
    }
    .hero-content h1 {
        font-size: 2rem;
    }
    .hero-buttons {
        flex-direction: column;
    }
    .btn-primary, .btn-secondary {
        text-align: center;
        justify-content: center;
    }
}