/* === Цветовая схема === */
:root {
    --bs-primary: #3a5ca4;
    --bs-primary-rgb: 58, 92, 164;
}

/* === Общие стили === */
body {
    background: linear-gradient(to bottom right, #f5f7fa, #e6ecf3);
    color: #212529;
}

/* === Ссылки === */
a {
    color: inherit;
    text-decoration: none;
}

a:hover,
a:focus {
    color: var(--bs-primary);
    text-decoration: none;
}

/* === Главный блок обмена === */
.exchange-box {
    background-color: #ffffff;
    border-radius: 12px;
    padding: 2rem;
    border: 1px solid #ced4da;
    box-shadow: none;
}

/* === Swap Icon === */
.swap-icon {
    transition: transform 0.4s ease;
}

.swap-icon.rotated {
    transform: rotate(180deg);
}

/* === Инфоблок === */
#exchange-info {
    opacity: 1;
    transition: opacity 0.3s ease;
}

#exchange-info.d-none {
    opacity: 0;
}

/* === Dropdown Menu === */
.dropdown-menu {
    background-color: #ffffff;
    border-radius: 0.5rem;
    padding-top: 0;
    padding-bottom: 0;
    max-height: 220px;
    overflow-y: auto;
    border: 1px solid #ced4da;
}

.dropdown-menu li:first-child,
#leftMoneyOptions li:first-child,
#rightMoneyOptions li:first-child {
    position: sticky;
    top: 0;
    background-color: #f8f9fa;
    z-index: 2;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.dropdown-item img {
    width: 20px;
    height: 20px;
    object-fit: contain;
    margin-right: 8px;
    vertical-align: middle;
}

/* === Placeholder для монет === */
#leftMoneyLabel.placeholder,
#rightMoneyLabel.placeholder {
    color: #999;
    font-style: italic;
}

/* === Цвета и стили Bootstrap-переопределения === */
input.form-control,
textarea.form-control,
select.form-select {
    border-color: #ced4da;
    transition: border-color 0.3s, box-shadow 0.3s;
}

input.form-control:focus,
textarea.form-control:focus,
select.form-select:focus {
    border-color: #3a5ca4;
    box-shadow: 0 0 0 0.2rem rgba(58, 92, 164, 0.25);
}

/* Кнопки primary */
.btn-primary {
    background-color: #3a5ca4;
    border-color: #3a5ca4;
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: #2e4c8b;
    border-color: #2e4c8b;
}

/* Кнопки outline */
.btn-outline-primary {
    color: #3a5ca4;
    border-color: #3a5ca4;
}

.btn-outline-primary:hover,
.btn-outline-primary:focus {
    background-color: #3a5ca4;
    color: #fff;
}

/* Чекбоксы */
.form-check-input:checked {
    background-color: #3a5ca4;
    border-color: #3a5ca4;
}

/* Dropdown toggle при фокусе */
.dropdown-toggle:focus {
    border-color: #3a5ca4;
    box-shadow: 0 0 0 0.2rem rgba(58, 92, 164, 0.25);
}

/* Активная монета в dropdown */
.dropdown-item.active,
.dropdown-item:active {
    background-color: #3a5ca4;
    color: #fff;
}

/* === Header и Footer === */
header {
    background-color: #ffffff;
    border-bottom: 1px solid #dee2e6;
}

.site-title {
    color: #212529;
}

footer.site-footer {
    background-color: #f8f9fa;
    color: #6c757d;
    border-top: 1px solid #dee2e6;
}

.site-footer .footer-link {
    color: #6c757d;
    text-decoration: none;
}

.site-footer .footer-link:hover {
    color: #343a40;
    text-decoration: none;
}

/* === Монеты — инпут под курсором === */
#leftMoneyLabel.form-control,
#rightMoneyLabel.form-control {
    background-color: transparent;
    border-color: #ced4da;
    transition: border-color 0.3s, box-shadow 0.3s;
}

#leftMoneyLabel.form-control:hover,
#rightMoneyLabel.form-control:hover,
#leftMoneyLabel.form-control:focus,
#rightMoneyLabel.form-control:focus {
    border-color: #3a5ca4;
    outline: 2px solid #3a5ca4;
}

/* === Адаптивные размеры === */
@media (max-width: 768px) {
    .exchange-box {
        padding: 1rem;
    }
}

#leftMoneyDropdown,
#rightMoneyDropdown {
    border-width: 1px;
    border-color: #3a5ca4;
    box-shadow: none;
}

#leftMoneyDropdown:focus,
#rightMoneyDropdown:focus {
    border-color: #3a5ca4;
    box-shadow: none;
    outline: none;
}

/* === Популярные курсы === */
.popular-inner-section {
    background-color: #f8f9fa;
    border-radius: 0.5rem;
}

.popular-inner-section h5,
#popular-rates .rate-label,
#popular-rates strong {
    font-weight: 600;
    color: #212529;
}

.popular-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1rem;
    text-align: center;
}

/* === Документы === */
.document-box {
    border: 1px solid #dee2e6;
    border-radius: 0.5rem;
    padding: 2rem;
    background-color: #fff;
    margin: 0 auto;
    box-shadow: 0 .125rem .25rem rgba(0, 0, 0, .075);
    word-wrap: break-word;
}