:root {
    --bg-primary: #0c0c0c;
    --bg-secondary: #1a1a1a;
    --bg-card: #1e1e1e;
    --text-primary: #ffffff;
    --text-secondary: #c9c6c6;
    --accent-primary: #f0b90b;
    --accent-secondary: #f8d33a;
    --border-color: #2d2d2d;
}

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

body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    background-image:
        radial-gradient(circle at 15% 50%, rgba(240, 185, 11, 0.1) 0%, transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(248, 211, 58, 0.05) 0%, transparent 25%);
    min-height: 100vh;
    padding: 20px;
}

.header {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    margin-bottom: 2rem;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.content-container {
    background: var(--bg-card);
    padding: 3rem;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    max-width: 900px;
    margin: 0 auto;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(10px);
}

.content-section {
    margin-bottom: 2.5rem;
}

.content-section h2 {
    color: var(--accent-primary);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.content-section h3 {
    color: var(--accent-secondary);
    font-size: 1.2rem;
    margin: 1.5rem 0 0.5rem 0;
}

.content-section p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    text-align: justify;
}

.content-section ul {
    color: var(--text-secondary);
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

.content-section li {
    margin-bottom: 0.5rem;
}

.back-button {
    display: inline-block;
    padding: 12px 28px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: #000000;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    margin-top: 1rem;
}

.back-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(240, 185, 11, 0.3);
}

.footer {
    text-align: center;
    color: var(--text-secondary);
    margin-top: 3rem;
    padding: 1rem;
    font-size: 0.9rem;
}

/* Адаптивность для мобильных устройств */
@media (max-width: 768px) {
    body {
        padding: 15px;
    }

    .header {
        padding: 1.5rem 1rem;
        margin-bottom: 1.5rem;
        border-radius: 12px;
    }

    .header h1 {
        font-size: 1.8rem;
        margin-bottom: 0.3rem;
    }

    .content-container {
        padding: 1.5rem;
        margin: 0;
        border-radius: 12px;
        max-width: 100%;
    }

    .content-section {
        margin-bottom: 2rem;
    }

    .content-section h2 {
        font-size: 1.3rem;
        margin-bottom: 0.8rem;
        padding-bottom: 0.4rem;
    }

    .content-section h3 {
        font-size: 1.1rem;
        margin: 1.2rem 0 0.4rem 0;
    }

    .content-section p {
        font-size: 0.95rem;
        text-align: left;
        margin-bottom: 0.8rem;
        line-height: 1.5;
    }

    .content-section ul {
        margin-left: 1rem;
        margin-bottom: 0.8rem;
    }

    .content-section li {
        font-size: 0.95rem;
        margin-bottom: 0.4rem;
    }

    .back-button {
        padding: 10px 24px;
        font-size: 0.95rem;
        margin-top: 0.8rem;
        width: 100%;
        text-align: center;
    }

    .footer {
        margin-top: 2rem;
        padding: 0.8rem;
        font-size: 0.85rem;
    }
}

/* Адаптивность для очень маленьких экранов */
@media (max-width: 480px) {
    body {
        padding: 10px;
    }

    .header {
        padding: 1rem 0.8rem;
        margin-bottom: 1rem;
        border-radius: 10px;
    }

    .header h1 {
        font-size: 1.5rem;
    }

    .content-container {
        padding: 1rem;
        border-radius: 10px;
    }

    .content-section {
        margin-bottom: 1.5rem;
    }

    .content-section h2 {
        font-size: 1.2rem;
        margin-bottom: 0.6rem;
    }

    .content-section h3 {
        font-size: 1rem;
        margin: 1rem 0 0.3rem 0;
    }

    .content-section p {
        font-size: 0.9rem;
        margin-bottom: 0.6rem;
    }

    .content-section ul {
        margin-left: 0.8rem;
    }

    .content-section li {
        font-size: 0.9rem;
        margin-bottom: 0.3rem;
    }

    .back-button {
        padding: 8px 20px;
        font-size: 0.9rem;
    }

    .footer {
        margin-top: 1.5rem;
        font-size: 0.8rem;
    }
}

/* Адаптивность для ландшафтной ориентации на мобильных */
@media (max-width: 768px) and (orientation: landscape) {
    body {
        padding: 10px;
    }

    .content-container {
        max-height: 90vh;
        overflow-y: auto;
    }
}