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

:root {
    --primary-color: #d4af37;
    --secondary-color: #8b7355;
    --dark-bg: #1a1a1a;
    --light-bg: #f5f5f5;
    --text-dark: #333;
    --text-light: #666;
    --border-color: #ddd;
}

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

/* Боковое меню */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: 250px;
    height: 100vh;
    background-color: var(--dark-bg);
    color: white;
    padding: 20px 0;
    overflow-y: auto;
    box-shadow: 2px 0 5px rgba(0,0,0,0.2);
}

.sidebar .logo {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 0 20px 30px 20px;
    border-bottom: 2px solid var(--primary-color);
    margin-bottom: 20px;
}

.sidebar .logo img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
}

.sidebar .logo span {
    font-size: 16px;
    font-weight: bold;
    color: var(--primary-color);
}

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

.sidebar li {
    margin: 0;
}

.sidebar a {
    display: block;
    padding: 15px 25px;
    color: #ccc;
    text-decoration: none;
    transition: all 0.3s ease;
    border-left: 4px solid transparent;
}

.sidebar a:hover {
    background-color: rgba(212, 175, 55, 0.1);
    color: var(--primary-color);
    border-left-color: var(--primary-color);
    padding-left: 30px;
}

.sidebar a.active {
    background-color: rgba(212, 175, 55, 0.2);
    color: var(--primary-color);
    border-left-color: var(--primary-color);
    font-weight: bold;
}

/* Основной контент */
.content {
    margin-left: 250px;
    padding: 40px;
    min-height: 100vh;
    background-color: white;
}

.page-header {
    text-align: center;
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 3px solid var(--primary-color);
}

.page-header h1 {
    font-size: 48px;
    color: var(--dark-bg);
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* О компании */
.about-section {
    margin-bottom: 40px;
    padding: 20px;
    background-color: var(--light-bg);
    border-left: 5px solid var(--primary-color);
}

.about-section h2 {
    color: var(--secondary-color);
    margin-bottom: 15px;
    font-size: 28px;
}

.about-section h3 {
    color: var(--secondary-color);
    margin-top: 15px;
    margin-bottom: 10px;
}

.about-section p {
    line-height: 1.8;
    margin-bottom: 10px;
    color: var(--text-light);
    text-align: justify;
}

.business-areas {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.area-image {
    width: 100%;
    height: 150px;
    object-fit: cover;
    border-radius: 5px;
    margin-bottom: 15px;
}

.area-item {
    padding: 20px;
    background-color: white;
    border-radius: 5px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    border-top: 4px solid var(--primary-color);
}

.area-item h3 {
    color: var(--primary-color);
}

.achievements-list {
    list-style: disc inside;
    color: var(--text-light);
    line-height: 1.6;
    margin-left: 20px;
}

/* Новости */
.news-section {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

.news-card {
    padding: 25px;
    background-color: var(--light-bg);
    border-left: 5px solid var(--primary-color);
    border-radius: 5px;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.news-card:hover {
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
    transform: translateY(-2px);
}

.news-date {
    font-size: 12px;
    color: var(--primary-color);
    font-weight: bold;
    text-transform: uppercase;
    margin-bottom: 10px;
}

.news-title {
    font-size: 22px;
    color: var(--dark-bg);
    margin-bottom: 15px;
    font-weight: bold;
}

.news-preview {
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 15px;
}

.news-full {
    color: var(--text-light);
    line-height: 1.8;
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
    text-align: justify;
}

.show-btn {
    background-color: var(--primary-color);
    color: var(--dark-bg);
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s ease;
}

.show-btn:hover {
    background-color: var(--secondary-color);
    color: white;
}

/* Курс валют */
.currency-section {
    margin-bottom: 40px;
    padding: 20px;
    background-color: var(--light-bg);
    border-left: 5px solid var(--primary-color);
    border-radius: 5px;
}

.currency-section h2 {
    color: var(--secondary-color);
    margin-bottom: 20px;
    font-size: 28px;
}

.current-rate {
    background-color: white;
    padding: 20px;
    border-radius: 5px;
    font-size: 24px;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    text-align: center;
}

.calculator {
    background-color: white;
    padding: 20px;
    margin-bottom: 20px;
    border-radius: 5px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    display: flex;
    gap: 20px;
    align-items: center;
}

.calc-input-group {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-width: 600px;
}

.calc-input-group label {
    font-weight: bold;
    color: var(--secondary-color);
}

.calc-input-group input {
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 16px;
}

.calc-input-group button {
    background-color: var(--primary-color);
    color: var(--dark-bg);
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s ease;
}

.calc-input-group button:hover {
    background-color: var(--secondary-color);
    color: white;
}

.calc-result {
    font-size: 18px;
    color: var(--primary-color);
    font-weight: bold;
}

.chart-container {
    background-color: white;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

/* Контакты */
.contacts-section {
    margin-bottom: 40px;
}

.contacts-section h2 {
    color: var(--secondary-color);
    margin-bottom: 20px;
    font-size: 28px;
}

.contacts-info {
    background-color: var(--light-bg);
    padding: 25px;
    border-left: 5px solid var(--primary-color);
    border-radius: 5px;
    margin-bottom: 20px;
}

.contact-item {
    margin-bottom: 20px;
}

.contact-item h3 {
    color: var(--primary-color);
    font-size: 16px;
    margin-bottom: 8px;
    font-weight: bold;
}

.contact-item p {
    color: var(--text-light);
    line-height: 1.6;
}

.contacts-map {
    margin-top: 40px;
    padding: 20px;
    background-color: var(--light-bg);
    border-left: 5px solid var(--primary-color);
    border-radius: 5px;
}

.contacts-map h2 {
    color: var(--secondary-color);
    margin-bottom: 20px;
    font-size: 28px;
}

.branches {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.branch-item {
    background-color: white;
    padding: 20px;
    border-radius: 5px;
    border-top: 4px solid var(--primary-color);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.branch-item h3 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

.branch-item p {
    color: var(--text-light);
    line-height: 1.6;
    font-size: 14px;
}

/* Видео */
.video-section {
    margin-bottom: 40px;
    padding: 20px;
    background-color: var(--light-bg);
    border-left: 5px solid var(--primary-color);
    border-radius: 5px;
}

.video-section h2 {
    color: var(--secondary-color);
    margin-bottom: 20px;
    font-size: 28px;
}

.video-container {
    margin-bottom: 20px;
    border-radius: 5px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    justify-content: center;
    display: flex;
}

.video-description {
    background-color: white;
    padding: 15px;
    color: var(--text-light);
    line-height: 1.7;
    text-align: justify;
    margin-top: 15px;
}

.video-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.info-box {
    background-color: white;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    border-top: 4px solid var(--primary-color);
}

.info-box h3 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

.info-box p {
    color: var(--text-light);
    line-height: 1.6;
    font-size: 14px;
    text-align: justify;
}

/* Кнопка "Наверх" */
.top-button {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: var(--dark-bg);
    border: none;
    font-size: 24px;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
    font-weight: bold;
}

.top-button:hover {
    background-color: var(--secondary-color);
    color: white;
    transform: scale(1.1);
}

.top-button.show {
    display: flex;
}

/* Адаптивный дизайн */
@media (max-width: 768px) {
    .sidebar {
        width: 200px;
    }
    
    .content {
        margin-left: 200px;
        padding: 20px;
    }
    
    .page-header h1 {
        font-size: 32px;
    }
    
    .calculator {
        flex-direction: column;
    }
    
    .about-section {
        padding: 15px;
    }
    
    .branches {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    .sidebar {
        width: 60px;
        padding: 10px 0;
    }
    
    .sidebar .logo {
        flex-direction: column;
        padding: 10px 0;
    }
    
    .sidebar .logo span {
        display: none;
    }
    
    .sidebar a {
        padding: 10px;
        text-align: center;
        font-size: 12px;
    }
    
    .content {
        margin-left: 60px;
        padding: 15px;
    }
    
    .page-header h1 {
        font-size: 24px;
    }
    
    .top-button {
        width: 40px;
        height: 40px;
        bottom: 20px;
        right: 20px;
        font-size: 18px;
    }
}