* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.6;
    max-width: 1400px;
    margin: 0 auto;
    padding: 16px;
    scroll-behavior: smooth;
    padding-top: 100px;
}

/* Header - фиксированный */
header {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    color: #1a2a3a;
    padding: 16px 24px;
    border-radius: 20px;
    margin-bottom: 24px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
    position: fixed;
    top: 12px;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 32px);
    max-width: 1368px;
    z-index: 1000;
    transition: all 0.3s ease;
    border: 1px solid rgba(0,0,0,0.05);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.header-info {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.header-info img {
    width: auto;
    max-width: 100%;
    height: auto;
    max-height: 50px;
}

/* Навигация */
.header-nav {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.nav-button {
    background-color: #fc4c00;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 40px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: flex;
    align-items: center;
        justify-content: center;
        gap: 8px;
    white-space: nowrap;
    text-align: center;
}

.nav-button i {
    font-size: 1rem;
    font-style: normal;
}

.nav-button:hover {
    background-color: #fc4c00;
    transform: translateY(-2px);
    box-shadow: 0 6px 14px rgba(252, 76, 0, 0.3);
}

/* Секции */
.section {
    background-color: white;
    padding: 28px 24px;
    border-radius: 24px;
    margin-bottom: 24px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
    transition: box-shadow 0.2s;
}

.section:hover {
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
}

h2 {
    font-size: 1.8rem;
    margin: 0 0 20px 0;
    color: #1a2a3a;
    border-left: 5px solid #3498db;
    padding-left: 15px;
    display: flex;
    align-items: center;
    gap: 12px;
}

h2 i {
    color: #3498db;
    font-size: 1.6rem;
}

h3 {
    font-size: 1.2rem;
    margin: 20px 0 12px 0;
    color: #1a2a3a;
    display: flex;
    align-items: center;
    gap: 10px;
}

h3 i {
    color: #3498db;
}

/* Текстовый контент */
.content-text {
    color: #333;
}

.content-text p {
    margin-bottom: 16px;
    font-size: 1rem;
    line-height: 1.7;
}

.content-text strong {
    color: #1a2a3a;
}

/* Список документов */
.doc-list {
    list-style: none;
    padding: 0;
    margin: 12px 0 20px 0;
}

.doc-list li {
    padding: 10px 16px;
    margin-bottom: 8px;
    background: linear-gradient(135deg, #e8f0fe 0%, #d4e4f7 100%);
    border-radius: 12px;
    font-size: 0.95rem;
    position: relative;
    padding-left: 35px;
}

.doc-list li::before {
    content: "  ";
    position: absolute;
    left: 14px;
    color: #fc4c00;
    font-weight: bold;
}

/* Блок предупреждения */
.warning-box {
    background: linear-gradient(135deg, #fff0e8 0%, #ffe0d0 100%);
    border-left: 5px solid #fc4c00;
    padding: 16px 20px;
    border-radius: 12px;
    margin: 20px 0;
}

.warning-box p {
    margin-bottom: 0;
    color: #5c1a00;
}

.warning-box strong {
    color: #fc4c00;
}

/* Информационный блок */
.info-box {
    background: linear-gradient(135deg, #fff0e8 0%, #ffe0d0 100%);
    border-left: 5px solid #fc4c00;
    padding: 16px 20px;
    border-radius: 12px;
    margin: 20px 0;
}

.info-box p {
    margin-bottom: 0;
    color: #5c1a00;
}

.info-box strong {
    color: #fc4c00;
}

/* Контактная карточка */
.contact-card {
    background: linear-gradient(135deg, #e8f0fe 0%, #d4e4f7 100%);
    padding: 24px;
    border-radius: 20px;
    margin: 20px 0;
    transition: transform 0.2s;
}

.contact-card:hover {
    transform: translateY(-3px);
}

.contact-card h4 {
    color: #1a2a3a;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
}

.contact-card i {
    color: #fc4c00;
    width: 28px;
    font-size: 1.2rem;
}

.contact-card p {
    color: #2c3e50;
    margin-left: 38px;
    font-weight: 500;
    margin-bottom: 12px;
}

.contact-card strong {
    color: #1a2a3a;
}

footer {
    text-align: center;
    margin-top: 32px;
    padding: 20px;
    color: #7f8c8d;
    font-size: 0.85rem;
    border-top: 1px solid #dee2e6;
}

/* Кнопка наверх */
.back-to-top {
    position: fixed;
    bottom: 25px;
    right: 25px;
    background: linear-gradient(135deg, #1a2a3a, #2c3e50);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all 0.3s;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    z-index: 1001;
    opacity: 0.7;
}

.back-to-top:hover {
    background: linear-gradient(135deg, #fc4c00, #e04400);
    transform: translateY(-5px);
    opacity: 1;
}

/* ========== МОБИЛЬНЫЕ (до 768px) ========== */
@media (max-width: 768px) {
    body {
        padding: 10px;
        padding-top: 85px;
    }

    header {
        padding: 12px 16px;
        top: 8px;
        width: calc(100% - 20px);
    }

    .header-container {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
        gap: 12px;
    }

    .header-info {
        justify-content: center;
        flex-direction: column;
        gap: 8px;
    }

    .header-info img {
        max-width: 280px;
        width: 100%;
        min-width: 180px;
        margin: 0 auto;
    }

    .header-nav {
        justify-content: center;
        gap: 8px;
    }

    .nav-button {
        padding: 7px 12px;
        font-size: 0.7rem;
    }

    .nav-button i {
        font-size: 0.8rem;
    }

    h2 {
        font-size: 1.3rem;
        padding-left: 12px;
    }

    h2 i {
        font-size: 1.2rem;
    }

    h3 {
        font-size: 1rem;
    }

    .section {
        padding: 18px 16px;
        border-radius: 18px;
    }

    .content-text p {
        font-size: 0.9rem;
    }

    .doc-list li {
        font-size: 0.85rem;
        padding: 8px 12px 8px 30px;
    }

    .warning-box,
    .info-box {
        padding: 12px 16px;
    }

    .contact-card {
        padding: 16px;
    }
    
    .contact-card h4 {
        font-size: 0.9rem;
    }
    
    .contact-card p {
        margin-left: 28px;
        font-size: 0.85rem;
    }

    .back-to-top {
        width: 42px;
        height: 42px;
        bottom: 15px;
        right: 15px;
    }

    footer {
        font-size: 0.7rem;
        padding: 15px;
    }
}

/* ========== ОЧЕНЬ МАЛЕНЬКИЕ ЭКРАНЫ (до 480px) ========== */
@media (max-width: 480px) {
    body {
        padding-top: 75px;
    }

    header {
        padding: 10px 12px;
    }
    .header-info img {
        max-width: 220px;
        width: 100%;
        min-width: 150px;
        margin: 0 auto;
    }
    .header-nav {
        gap: 6px;
    }

    .nav-button {
        padding: 5px 8px;
        font-size: 0.65rem;
        gap: 4px;
    }

    .nav-button i {
        font-size: 0.7rem;
    }

    h2 {
        font-size: 1.2rem;
    }

    .section {
        padding: 14px 12px;
    }

    .content-text p {
        font-size: 0.85rem;
    }

    .doc-list li {
        font-size: 0.8rem;
    }
    
    .contact-card {
        padding: 12px;
    }
    
    .contact-card p {
        margin-left: 22px;
        font-size: 0.8rem;
    }
    
    .contact-card h4 {
        font-size: 0.85rem;
    }
    
    .contact-card i {
        width: 22px;
        font-size: 1rem;
    }
}

/* ========== БОЛЬШИЕ ЭКРАНЫ (от 1400px) ========== */
@media (min-width: 1400px) {
    body {
        padding: 20px;
        padding-top: 110px;
    }

    header {
        max-width: 1360px;
        padding: 20px 32px;
    }

    .section {
        padding: 32px 28px;
    }

    h2 {
        font-size: 2rem;
    }

    .content-text p {
        font-size: 1.1rem;
    }
}