:root {
    --primary-color: #00436b;
    --secondary-color: #ffae42;
    --accent-color: #f06292;
    --bg-light: #f7f7f7;
    --bg-dark: #2c2c2c;
    --text-color: #333;
    --max-width: 1200px;
    --space-small: 8px;
    --space-medium: 16px;
    --space-large: 32px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text-color);
    background-color: var(--bg-light);
    line-height: 1.6;
}

.header,
.footer,
.main,
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--space-large) var(--space-medium);
}

header {
    background-color: var(--primary-color);
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-medium) var(--space-medium);
}

nav a {
    color: white;
    margin-right: var(--space-medium);
    text-decoration: none;
}

nav a:last-of-type {
    margin-right: 0;
}

.hero {
    background-color: var(--secondary-color);
    color: white;
    padding: var(--space-large) 0;
}

.hero img {
    width: 100%;
    height: auto;
    margin-top: var(--space-medium);
}

.advantages,
.about-preview,
.testimonials,
.faq-preview,
.contact-info,
.registration-form {
    padding: var(--space-large) 0;
}

.advantages {
    background: var(--bg-dark);
    color: white;
}

.about-preview {
    background: var(--accent-color);
    color: white;
}

.testimonials {
    background: var(--bg-light);
}

.faq-preview {
    background: var(--accent-color);
    color: white;
}

.registration-form {
    background-color: var(--secondary-color);
    color: white;
}

.registration-form form {
    display: flex;
    flex-direction: column;
    width: 100%;
    max-width: 400px;
}

.registration-form label,
.registration-form input,
.registration-form button,
.registration-form .consent {
    margin-bottom: var(--space-medium);
}

.registration-form input,
.registration-form button {
    padding: var(--space-small);
    font-size: 1em;
    width: 100%;
}

.registration-form button {
    background-color: var(--primary-color);
    border: none;
    color: white;
    cursor: pointer;
}

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

footer {
    background: var(--primary-color);
    color: white;
    display: flex;
    justify-content: space-between;
    padding: var(--space-large) var(--space-medium);
    align-items: flex-start;
}

.footer-links {
    display: flex;
    justify-content: space-between;
    width: 100%;
}

.footer-links a {
    color: white;
    text-decoration: none;
    margin-bottom: var(--space-small);
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-medium);
    margin-top: var(--space-large);
}

.card {
    background: var(--bg-light);
    padding: var(--space-medium);
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.blockquote {
    font-style: italic;
    background-color: var(--bg-light);
    padding: var(--space-medium);
    border-left: 5px solid var(--primary-color);
    margin-bottom: var(--space-small);
}

.img-rounded {
    border-radius: 8px;
    max-width: 100%;
}

@media screen and (max-width: 768px) {
    header,
    footer {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    nav a {
        margin: var(--space-small);
    }

    .footer-links {
        flex-direction: column;
    }
}