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

:root {
    --primary-color: #4A90E2;
    --primary-hover-color: #357ABD;
    --dark-bg-color: #1a1b1e;
    --light-bg-color: #ffffff;
    --text-color-dark: #f0f0f0;
    --text-color-light: #333333;
    --card-bg-color: #2c2e33;
}

body {
    font-family: 'Inter', sans-serif;
    margin: 0;
    background-color: var(--dark-bg-color);
    color: var(--text-color-dark);
    line-height: 1.6;
    overflow-x: hidden; /* Предотвращаем горизонтальный скролл из-за анимаций */
}

header {
    background-color: rgba(26, 27, 30, 0.8);
    backdrop-filter: blur(10px);
    padding: 1rem 5%;
    position: fixed;
    width: 90%;
    top: 0;
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 2rem;
}

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

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

main {
    padding-top: 80px;
}

section {
    padding: 6rem 5%;
    text-align: center;
    opacity: 0; /* Скрываем секции для анимации */
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

section.visible {
    opacity: 1;
    transform: translateY(0);
}

.hero {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(180deg, var(--dark-bg-color) 70%, var(--card-bg-color) 100%);
}

.hero-content h1 {
    font-size: 3rem;
    max-width: 800px;
    margin: 0 auto 1rem;
    line-height: 1.2;
}

.hero-content p {
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto 2rem;
    opacity: 0.9;
}

.cta-button {
    background-color: var(--primary-color);
    color: var(--light-bg-color);
    padding: 1rem 2rem;
    text-decoration: none;
    font-weight: 700;
    border-radius: 8px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(74, 144, 226, 0.2);
}

.cta-button:hover {
    background-color: var(--primary-hover-color);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(74, 144, 226, 0.3);
}

.features {
    background-color: var(--card-bg-color);
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

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

.feature-item {
    background-color: var(--dark-bg-color);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid transparent;
    transition: all 0.3s ease;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.2);
}

.feature-item:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.feature-item h3 {
    font-size: 1.5rem;
    margin-top: 0;
    color: var(--primary-color);
}

.demo p {
    max-width: 700px;
    margin: 0 auto 2rem;
}

.video-container {
    max-width: 900px;
    margin: 0 auto;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

video {
    width: 100%;
    display: block;
}

.contact {
    background-color: var(--card-bg-color);
}

.about {
    background-color: var(--card-bg-color);
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

.fasie-logo {
    max-width: 300px;
    height: auto;
    filter: brightness(0.9);
}

.support-text {
    font-size: 1rem;
    line-height: 1.8;
    max-width: 800px;
    opacity: 0.9;
    text-align: left;
}

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

form input {
    width: 300px;
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid #555;
    background-color: var(--dark-bg-color);
    color: var(--text-color-dark);
    font-size: 1rem;
}

form button {
    background-color: var(--primary-color);
    color: var(--light-bg-color);
    padding: 1rem 2rem;
    border: none;
    font-weight: 700;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

form button:hover {
    background-color: var(--primary-hover-color);
}

footer {
    text-align: center;
    padding: 3rem 5%;
    background-color: var(--dark-bg-color);
    border-top: 1px solid var(--card-bg-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.footer-support {
    max-width: 900px;
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 2rem;
    margin-bottom: 1.5rem;
}

.fasie-logo {
    max-width: 280px;
    height: auto;
    filter: brightness(0.8);
}

.support-text {
    font-size: 0.9rem;
    line-height: 1.7;
    max-width: 750px;
    opacity: 0.7;
    text-align: left;
}

.footer-divider {
    width: 80%;
    max-width: 800px;
    height: 1px;
    background-color: var(--card-bg-color);
    margin: 1rem 0;
}

.contact-info {
    margin-top: 1rem;
    font-size: 0.9rem;
    opacity: 0.7;
}

.contact-info p {
    margin: 0.3rem 0;
}

.contact-info a {
    color: var(--text-color-dark);
    text-decoration: none;
}

.contact-info a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

@media (max-width: 768px) {
    nav ul {
        display: none;
    }
    .hero-content h1 {
        font-size: 2.5rem;
    }
    form {
        flex-direction: column;
        align-items: center;
    }
    form input {
        width: 100%;
        max-width: 400px;
    }
    .fasie-logo {
        max-width: 220px;
    }
    .support-text {
        font-size: 0.85rem;
        text-align: center;
    }
    .footer-support {
        flex-direction: column;
    }
}