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

html {
    scroll-padding-top: 72px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: #ffffff;
    color: #1a1a1a;
    line-height: 1.6;
    font-size: 16px;
}

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ——— Липкое меню ——— */
.nav-sticky {
    position: sticky;
    top: 0;
    z-index: 100;
    background: #ffffff;
    border-bottom: 1px solid #e5e5e5;
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.04);
}

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.nav-logo {
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.02em;
    color: #1a1a1a;
    text-decoration: none;
}

.nav-links {
    list-style: none;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px 20px;
}

.nav-links a {
    color: #4a4a4a;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.15s;
}

.nav-links a:hover {
    color: #1a1a1a;
}

.nav-cta {
    padding: 8px 16px;
    background: #1a1a1a;
    color: #fff !important;
    border-radius: 8px;
    font-weight: 600;
}

.nav-cta:hover {
    background: #333;
    color: #fff !important;
}

/* ——— Секции ——— */
.section {
    padding: 80px 0;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 48px;
    text-align: center;
    color: #1a1a1a;
}

/* ——— Hero ——— */
.hero {
    padding: 120px 0 100px;
    text-align: center;
}

.hero-eyebrow {
    font-size: 0.95rem;
    color: #666;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
}

.hero-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.25;
    max-width: 720px;
    margin: 0 auto 20px;
    color: #1a1a1a;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: #4a4a4a;
    margin-bottom: 32px;
}

.btn-primary {
    display: inline-block;
    padding: 14px 28px;
    background: #1a1a1a;
    color: #fff;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    transition: background 0.2s;
}

.btn-primary:hover {
    background: #333;
}

/* ——— Проблемы ——— */
.problems {
    background: #fafafa;
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.problem-card {
    background: #fff;
    border: 1px solid #e5e5e5;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
    display: flex;
    flex-direction: column;
}

.problem-card-media {
    width: 100%;
    aspect-ratio: 16 / 10;
    min-height: 160px;
    background: #eee;
    overflow: hidden;
}

.problem-card-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.problem-card-body {
    padding: 24px 28px;
    flex: 1;
}

.problem-heading {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: #1a1a1a;
}

.problem-desc {
    color: #4a4a4a;
    margin-bottom: 16px;
}

.problem-card ul {
    margin: 0;
    padding-left: 20px;
    color: #4a4a4a;
}

.problem-card li {
    margin-bottom: 8px;
}

@media (max-width: 768px) {
    .problems-grid {
        grid-template-columns: 1fr;
    }
}

/* ——— Решение ——— */
.solution-block {
    margin-bottom: 40px;
}

.solution-num {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: #1a1a1a;
}

.solution-item {
    background: #fafafa;
    border-radius: 10px;
    padding: 20px 24px;
    margin-bottom: 12px;
    border: 1px solid #eee;
}

.solution-item h4 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: #1a1a1a;
}

.solution-item p {
    color: #4a4a4a;
    margin: 0;
}

.solution-summary {
    background: #f0f4f8;
    border-radius: 10px;
    padding: 24px 28px;
    margin: 32px 0 40px;
    border-left: 4px solid #1a1a1a;
}

.solution-summary p {
    margin: 0;
    color: #1a1a1a;
}

.solution .btn-primary {
    display: block;
    text-align: center;
    max-width: 280px;
    margin: 0 auto;
}

/* ——— Как это работает ——— */
.how {
    background: #fff;
}

.how-step {
    background: #fafafa;
    border: 1px solid #e5e5e5;
    border-radius: 12px;
    padding: 28px 32px;
    margin-bottom: 24px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.how-step-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: #1a1a1a;
}

.how-step-desc {
    color: #4a4a4a;
    margin-bottom: 16px;
}

.how-step-list {
    margin: 0;
    padding-left: 20px;
    color: #4a4a4a;
}

.how-step-list li {
    margin-bottom: 10px;
}

/* ——— Основано на опыте практика ——— */
.experience {
    background: #fafafa;
}

.experience-block {
    max-width: 720px;
    margin: 0 auto;
    background: #fff;
    border: 1px solid #e5e5e5;
    border-radius: 12px;
    padding: 36px 40px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.experience-title {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: #1a1a1a;
}

.experience-block p {
    color: #4a4a4a;
    margin-bottom: 16px;
}

.experience-block p:last-child {
    margin-bottom: 0;
}

/* ——— Плейсхолдеры ——— */
.placeholder {
    background: #fafafa;
    border-top: 1px solid #eee;
}

.placeholder-text {
    text-align: center;
    color: #999;
    font-size: 0.95rem;
}

/* ——— Политика конфиденциальности ——— */
.privacy-updated {
    color: #666;
    font-size: 0.95rem;
    margin-bottom: 32px;
}
.privacy-block {
    margin-bottom: 28px;
}
.privacy-block h2 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: #1a1a1a;
}
.privacy-block p,
.privacy-block ul {
    color: #4a4a4a;
    margin-bottom: 12px;
}
.privacy-block ul {
    padding-left: 24px;
}
.privacy-block li {
    margin-bottom: 6px;
}

/* ——— Футер ——— */
.footer {
    padding: 32px 0;
    border-top: 1px solid #e5e5e5;
    background: #fff;
}

.footer-copy {
    text-align: center;
    color: #888;
    font-size: 0.875rem;
}

/* ——— Адаптив меню ——— */
@media (max-width: 900px) {
    .nav-links {
        display: none;
    }
    .nav-inner {
        justify-content: center;
    }
    .nav-sticky .nav-cta {
        position: absolute;
        right: 24px;
    }
}

@media (max-width: 640px) {
    .section {
        padding: 48px 0;
    }
    .hero {
        padding: 80px 0 60px;
    }
    .problem-card,
    .solution-item {
        padding: 20px;
    }
}