/* Переменные на основе предоставленной дизайн-системы Транс Трэвел */
:root {
    --color-primary: #1e5fa8;
    --color-primary-hover: #174d8e;
    --color-primary-active: #103a6e;
    --color-highlight: #d0dff2;
    --color-sky: #4a9fd;
    --color-surface: #ffffff;
    --color-surface-offset: #f8f9fa;
    --color-text: #1a1c1e;
    --color-text-muted: #44474a;
    
    --font-main: 'Noto Sans', sans-serif;
    --font-logo: 'Montserrat', sans-serif;
    
    --space-16: 16px;
    --radius-8: 8px;
    --transition: 180ms cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
    font-family: var(--font-main);
    color: var(--color-text);
    line-height: 1.6;
    background-color: var(--color-surface);
}

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

/* Header */
.header {
    background: var(--color-surface);
    border-bottom: 1px solid #eee;
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo__text {
    font-family: var(--font-logo);
    font-weight: 700;
    font-size: 24px;
    color: var(--color-primary);
    letter-spacing: 1px;
}

.nav__link {
    text-decoration: none;
    color: var(--color-text);
    margin-right: 25px;
    font-weight: 600;
    transition: var(--transition);
}

.nav__link:hover {
    color: var(--color-primary);
}

/* Buttons */
.btn {
    padding: 10px 20px;
    border-radius: var(--radius-8);
    border: none;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
    display: inline-block;
    text-align: center;
}

.btn--primary {
    background-color: var(--color-primary);
    color: white;
}

.btn--primary:hover {
    background-color: var(--color-primary-hover);
    transform: translateY(-1px);
}

.btn--secondary {
    background-color: var(--color-highlight);
    color: var(--color-primary);
}

.btn--large {
    padding: 15px 30px;
    font-size: 18px;
}

.btn--full {
    width: 100%;
    margin-top: 20px;
}

/* Hero Section */
.hero {
    padding: 80px 0;
    background: linear-gradient(135deg, #f0f4f8 0%, #ffffff 100%);
}

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

.hero__title {
    font-size: 42px;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero__subtitle {
    font-size: 18px;
    color: var(--color-text-muted);
    margin-bottom: 30px;
}

.hero__img {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.hero-content .btn{
	display: flex;
	align-items: center;
}

/* Calculator Card */
.section-title {
    text-align: center;
    margin-bottom: 40px;
    font-size: 32px;
}

.calc-card {
    background: white;
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.06);
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
}

.form-input {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: var(--radius-8);
    font-size: 16px;
}

.calc-result {
    margin-top: 30px;
    padding: 20px;
    background: var(--color-surface-offset);
    border-radius: var(--radius-8);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.calc-result__value {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-primary);
}

/* Footer */
.footer {
    padding: 40px 0;
    background: var(--color-text);
    color: white;
    margin-top: 80px;
}

@media (max-width: 768px) {
    .hero__grid {
        grid-template-columns: 1fr;
    }
    .nav {
        display: none; /* Для упрощения в мобильной версии */
    }
}