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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.5;
    color: #1a1a1a;
    background-color: #ffffff;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 16px;
}

/* Header — лаконичный, без градиентов */
header {
    background-color: #000000;
    color: #ffffff;
    padding: 32px 0;
    text-align: left;
    border-bottom: 3px solid #FF6B1A;
}

header h1 {
    font-size: 1.75rem;
    font-weight: 600;
    letter-spacing: -0.5px;
}

.subtitle {
    font-size: 0.95rem;
    color: #b0b0b0;
    margin-top: 4px;
}

/* Навигация — компактная */
nav {
    background-color: #1a1a1a;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid #333333;
}

.nav-links {
    list-style: none;
    display: flex;
    justify-content: flex-start;
    flex-wrap: wrap;
    padding: 10px 0;
    gap: 4px;
}

.nav-links li {
    margin: 0;
}

.nav-links a {
    color: #cccccc;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    padding: 6px 12px;
    border-radius: 2px;
    transition: background-color 0.2s, color 0.2s;
}

.nav-links a:hover {
    color: #ffffff;
    background-color: #FF6B1A;
}

.nav-links a.active {
    color: #ffffff;
    background-color: #FF6B1A;
}

main {
    background-color: #ffffff;
}

/* Секции — компактные отступы */
.section {
    padding: 40px 0;
    border-bottom: 1px solid #e5e5e5;
}

.section h2 {
    color: #000000;
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 16px;
    text-align: left;
    letter-spacing: -0.3px;
    border-left: 3px solid #FF6B1A;
    padding-left: 12px;
}

.section p {
    font-size: 0.95rem;
    margin-bottom: 16px;
    color: #333333;
    max-width: 75ch;
}

/* Карточки — плоские, без теней */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
    margin-top: 24px;
}

.feature-card {
    background: #fafafa;
    padding: 20px;
    border: 1px solid #e5e5e5;
    border-radius: 2px;
    transition: border-color 0.2s;
}

.feature-card:hover {
    border-color: #FF6B1A;
}

.feature-card h3 {
    color: #000000;
    margin-bottom: 8px;
    font-size: 1rem;
    font-weight: 600;
}

.feature-card p {
    font-size: 0.875rem;
    color: #555555;
    margin-bottom: 0;
}

/* Блок кода — минималистичный */
.code-block {
    background-color: #1a1a1a;
    color: #e5e5e5;
    padding: 16px;
    border-radius: 2px;
    margin: 20px 0;
    overflow-x: auto;
    border-left: 3px solid #FF6B1A;
}

.code-block h3 {
    color: #FF6B1A;
    margin-bottom: 10px;
    font-size: 0.95rem;
    font-weight: 600;
}

.code-block pre {
    margin: 0;
}

.code-block code {
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 0.85rem;
    line-height: 1.5;
}

.benefits {
    margin-top: 24px;
}

.benefits h3 {
    color: #000000;
    margin-bottom: 12px;
    font-size: 1rem;
    font-weight: 600;
}

.benefits ul {
    list-style: none;
    padding-left: 0;
}

.benefits li {
    margin-bottom: 8px;
    font-size: 0.9rem;
    padding-left: 16px;
    position: relative;
    color: #333333;
}

.benefits li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: #FF6B1A;
    font-weight: bold;
}

/* Шаги рабочего процесса */
.workflow-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px;
    margin-top: 24px;
}

.step {
    background: #ffffff;
    padding: 16px;
    border: 1px solid #e5e5e5;
    border-radius: 2px;
    text-align: left;
    transition: border-color 0.2s;
}

.step:hover {
    border-color: #FF6B1A;
}

.step-number {
    width: 28px;
    height: 28px;
    background: #000000;
    color: #FF6B1A;
    border-radius: 2px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.step h3 {
    color: #000000;
    margin-bottom: 6px;
    font-size: 0.95rem;
    font-weight: 600;
}

.step p {
    font-size: 0.85rem;
    color: #555555;
    margin-bottom: 0;
}

/* Практики */
.practices-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
    margin-top: 24px;
}

.practice-card {
    background: #fafafa;
    padding: 20px;
    border: 1px solid #e5e5e5;
    border-radius: 2px;
    transition: border-color 0.2s;
}

.practice-card:hover {
    border-color: #FF6B1A;
}

.practice-card h3 {
    color: #000000;
    margin-bottom: 8px;
    font-size: 1rem;
    font-weight: 600;
}

.practice-card p {
    font-size: 0.875rem;
    color: #555555;
    margin-bottom: 12px;
}

.practice-card pre {
    background-color: #1a1a1a;
    color: #e5e5e5;
    padding: 12px;
    border-radius: 2px;
    overflow-x: auto;
    border-left: 2px solid #FF6B1A;
}

.practice-card code {
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 0.8rem;
    line-height: 1.4;
}

/* Заключение — серый блок */
.summary {
    background: #f5f5f5;
    color: #1a1a1a;
    padding: 20px;
    border-radius: 2px;
    margin-top: 20px;
    border-left: 3px solid #FF6B1A;
}

.summary h3 {
    margin-bottom: 12px;
    font-size: 1rem;
    font-weight: 600;
    color: #000000;
}

.summary ul {
    list-style: none;
    padding-left: 0;
}

.summary li {
    margin-bottom: 6px;
    font-size: 0.9rem;
    padding-left: 16px;
    position: relative;
    color: #333333;
}

.summary li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: #FF6B1A;
    font-weight: bold;
}

/* Footer — компактный */
footer {
    background-color: #000000;
    color: #999999;
    text-align: left;
    padding: 20px 0;
    font-size: 0.85rem;
    border-top: 3px solid #FF6B1A;
}

/* Адаптивность */
@media (max-width: 768px) {
    header {
        padding: 24px 0;
    }

    header h1 {
        font-size: 1.4rem;
    }

    .subtitle {
        font-size: 0.85rem;
    }

    .nav-links {
        flex-direction: column;
        align-items: flex-start;
        gap: 2px;
    }

    .nav-links a {
        display: block;
        width: 100%;
    }

    .section {
        padding: 28px 0;
    }

    .section h2 {
        font-size: 1.25rem;
    }

    .features,
    .workflow-steps,
    .practices-grid {
        grid-template-columns: 1fr;
    }
}