:root {
    --primary-color: #e6f2ff;
    --secondary-color: #b3d9ff;
    --accent-color: #0077cc;
    --text-color: #333;
    --white: #fff;
    --dark-blue: #005fa3;
}

/* Базовые стили */
body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    margin: 0;
    padding: 0;
    background-color: var(--primary-color);
}

/* Навигационное меню */
.top-nav {
    background-color: var(--dark-blue);
    padding: 0.5rem 0;
    position: relative;
    z-index: 100;
}

.nav-container {
    width: 85%;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.main-nav {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

.main-nav li {
    margin-left: 1.5rem;
}

.main-nav a {
    color: var(--white);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s;
    padding: 0.3rem 0;
    position: relative;
}

.main-nav a:hover {
    color: var(--secondary-color);
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--secondary-color);
    transition: width 0.3s;
}

.main-nav a:hover::after {
    width: 100%;
}

.search-login {
    display: flex;
    align-items: center;
}

.search-box {
    position: relative;
    margin-right: 1.5rem;
}

.search-box input {
    padding: 0.3rem 0.5rem;
    border: none;
    border-radius: 3px;
    width: 180px;
    font-size: 0.9rem;
}

.search-box button {
    position: absolute;
    right: 5px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--accent-color);
    cursor: pointer;
}

.login-icon {
    color: var(--white);
    font-size: 1.2rem;
    cursor: pointer;
    transition: color 0.3s;
}

.login-icon:hover {
    color: var(--secondary-color);
}

/* Шапка с фоновым изображением */
header {
    color: var(--white);
    padding: 2rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        linear-gradient(rgba(0, 60, 120, 0.85), rgba(0, 40, 80, 0.9)), 
        url('../img/header-bg.jpg') center/cover no-repeat;
    z-index: -1;
    animation: zoomBackground 20s infinite alternate ease-in-out;
}

.header-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
}

.logo {
    font-size: 3rem;
    font-weight: bold;
    margin-bottom: 1rem;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
    letter-spacing: 1px;
    animation: fadeInUp 0.8s 0.2s ease-out backwards;
}

header p {
    font-size: 1.4rem;
    max-width: 800px;
    margin: 0 auto;
    text-shadow: 0 1px 3px rgba(0,0,0,0.5);
    animation: fadeInUp 0.8s 0.4s ease-out backwards;
}

/* Основное содержимое */
.container {
    width: 85%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

h1, h2, h3, h4 {
    color: var(--accent-color);
}

.section {
    background-color: var(--white);
    padding: 25px;
    margin-bottom: 30px;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.mission {
    font-style: italic;
    background-color: var(--white);
    padding: 15px;
    border-left: 4px solid var(--accent-color);
    margin: 20px 0;
}

/* Стили для карусели */
.solution-carousel {
    margin-bottom: 40px;
    padding: 20px;
    background-color: var(--primary-color);
    border-radius: 8px;
}

.carousel-container {
    position: relative;
    margin: 20px 0;
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.carousel {
    display: flex;
    transition: transform 0.5s ease-in-out;
}

.carousel-item {
    min-width: 100%;
    position: relative;
}

.carousel-item img {
    width: 100%;
    height: 400px;
    object-fit: contain;
    background-color: #fff;
    display: block;
}

.carousel-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 10px;
    text-align: center;
    font-size: 0.9rem;
}

.carousel-control {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.5);
    color: white;
    border: none;
    cursor: pointer;
    padding: 15px;
    font-size: 1.5rem;
    z-index: 10;
    transition: background 0.3s;
}

.carousel-control:hover {
    background: rgba(0, 0, 0, 0.8);
}

.carousel-control.prev {
    left: 10px;
}

.carousel-control.next {
    right: 10px;
}

.carousel-indicators {
    position: absolute;
    bottom: 15px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 10;
}

.carousel-indicators .indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: background 0.3s;
}

.carousel-indicators .indicator.active {
    background: var(--accent-color);
}

/* Стили для чекбоксов */
.form-group-checkbox {
    margin: 15px 0;
}

.checkbox-container {
    display: flex;
    align-items: center;
    cursor: pointer;
    position: relative;
    padding-left: 30px;
    font-size: 0.95rem;
    user-select: none;
}

.checkbox-container input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.checkmark {
    position: absolute;
    left: 0;
    top: 0;
    height: 20px;
    width: 20px;
    background-color: #fff;
    border: 1px solid #ccc;
    border-radius: 3px;
}

.checkbox-container:hover input ~ .checkmark {
    background-color: #f1f1f1;
}

.checkbox-container input:checked ~ .checkmark {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
}

.checkmark:after {
    content: "";
    position: absolute;
    display: none;
}

.checkbox-container input:checked ~ .checkmark:after {
    display: block;
}

.checkbox-container .checkmark:after {
    left: 7px;
    top: 3px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

/* Стили для политики конфиденциальности */
.policy-content {
    background-color: var(--white);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    margin-top: 20px;
}

.policy-content h2 {
    color: var(--dark-blue);
    margin-top: 30px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--secondary-color);
}

.last-updated {
    font-style: italic;
    color: #666;
    margin-bottom: 30px;
}

/* Стили для футера */
footer {
    background-color: var(--accent-color);
    color: var(--white);
    text-align: center;
    padding: 20px 0;
    margin-top: 40px;
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: var(--white);
    text-decoration: underline;
}

/* Модальные окна */
.modal {
    display: none;
    position: fixed;
    z-index: 1;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.4);
}

.modal-content {
    background-color: var(--white);
    margin: 10% auto;
    padding: 20px;
    border: 1px solid #888;
    width: 80%;
    max-width: 500px;
    border-radius: 5px;
    position: relative;
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.close:hover {
    color: var(--text-color);
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
}

.form-group input, 
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.form-group textarea {
    height: 100px;
}

.btn {
    display: inline-block;
    background-color: var(--accent-color);
    color: var(--white);
    padding: 10px 20px;
    text-decoration: none;
    border-radius: 5px;
    transition: background-color 0.3s;
    cursor: pointer;
    border: none;
}

.btn:hover {
    background-color: var(--dark-blue);
}

/* Анимации */
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes zoomBackground {
    0% {
        transform: scale(1);
    }
    100% {
        transform: scale(1.05);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes shake {
    0%, 100% {transform: translateX(0);}
    25% {transform: translateX(-5px);}
    75% {transform: translateX(5px);}
}

/* Специальные классы */
.shake {
    animation: shake 0.4s ease-in-out;
}

.alert {
    padding: 12px 15px;
    margin-bottom: 15px;
    border-radius: 4px;
    font-size: 0.9rem;
}

.alert-error {
    background-color: #ffebee;
    color: #c62828;
    border: 1px solid #ffcdd2;
}

.alert-success {
    background-color: #e8f5e9;
    color: #2e7d32;
    border: 1px solid #c8e6c9;
}

.spinner {
    border: 5px solid var(--secondary-color);
    border-top: 5px solid var(--accent-color);
    border-radius: 50%;
    width: 60px;
    height: 60px;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

.spinner-small {
    border: 3px solid var(--secondary-color);
    border-top: 3px solid var(--accent-color);
    border-radius: 50%;
    width: 20px;
    height: 20px;
    animation: spin 1s linear infinite;
}

/* Адаптивность */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .main-nav {
        margin-top: 1rem;
        flex-wrap: wrap;
    }
    
    .main-nav li {
        margin: 0.5rem 1rem 0.5rem 0;
    }
    
    .search-login {
        margin-top: 1rem;
        width: 100%;
        justify-content: space-between;
    }
    
    .search-box {
        margin-right: 0;
        width: calc(100% - 40px);
    }
    
    .search-box input {
        width: 100%;
    }
    
    header {
        padding: 2rem 0;
    }
    
    .logo {
        font-size: 2.2rem;
    }
    
    header p {
        font-size: 1.1rem;
        padding: 0 15px;
    }
    
    header::before {
        animation: none;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }
    
    .carousel-item img {
        height: 300px;
    }
    
    .contact-container {
        grid-template-columns: 1fr;
    }
}

/* Стили для заголовков решений */
.solution-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 15px;
}

.solution-header h4 {
    margin: 0;
    flex: 1;
    min-width: 300px;
}

/* Стили для кнопок решений */
.solution-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: var(--accent-color);
    color: white;
    padding: 10px 20px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: relative;
    overflow: hidden;
}

.solution-btn:hover {
    background-color: var(--dark-blue);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.solution-btn:active {
    transform: translateY(0);
}

.solution-btn i {
    font-size: 0.9em;
    transition: transform 0.3s ease;
}

.solution-btn:hover i {
    transform: translateX(3px);
}

/* Анимация подчеркивания */
.solution-btn::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: white;
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s ease;
}

.solution-btn:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

/* Адаптивность для кнопок */
@media (max-width: 768px) {
    .solution-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .solution-btn {
        width: 100%;
        justify-content: center;
    }
}

/* Стили для результатов поиска */
.search-result-item {
    background-color: var(--white);
    padding: 20px;
    border-radius: 5px;
    margin-bottom: 20px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
    border-left: 3px solid var(--accent-color);
}

.search-result-item h3 {
    margin-top: 0;
    color: var(--accent-color);
}

.search-result-item h3 a {
    color: inherit;
    text-decoration: none;
}

.search-result-item h3 a:hover {
    text-decoration: underline;
}

.search-result-item p {
    color: #555;
    margin-bottom: 15px;
    line-height: 1.5;
}

.search-result-link {
    display: inline-block;
    color: var(--accent-color);
    text-decoration: none;
    font-weight: bold;
    font-size: 0.9rem;
}

.search-result-link:hover {
    text-decoration: underline;
}

.no-results {
    text-align: center;
    padding: 40px 20px;
    background-color: var(--primary-color);
    border-radius: 8px;
    margin-top: 20px;
}

.no-results i {
    font-size: 3rem;
    color: var(--accent-color);
    margin-bottom: 20px;
}

.no-results h3 {
    margin-bottom: 10px;
    color: var(--dark-blue);
}