/* ============================
   Общие стили
   ============================ */
:root {
    --primary-color: #0d6efd;
    --success-color: #198754;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
    --secondary-color: #6c757d;
    --light-bg: #f8f9fa;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    background-attachment: fixed;
}

.container {
    max-width: 1200px;
}

/* ============================
   Заголовок
   ============================ */
header h1 {
    color: white;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
    margin-bottom: 0.5rem;
}

header p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
}

/* ============================
   Карточки
   ============================ */
.card {
    border: none;
    border-radius: 15px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2) !important;
}

.card-header {
    border-bottom: none;
    padding: 1rem 1.5rem;
    font-weight: 600;
}

.card-header h5 {
    font-size: 1.1rem;
}

.card-header i {
    margin-right: 0.5rem;
}

.card-body {
    padding: 1.5rem;
}

/* ============================
   Поля формы
   ============================ */
.form-label {
    font-weight: 500;
    color: #495057;
    margin-bottom: 0.5rem;
}

.form-control,
.form-select {
    border-radius: 8px;
    border: 2px solid #e9ecef;
    padding: 0.75rem 1rem;
    transition: all 0.3s ease;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.15);
}

.form-control:disabled,
.form-select:disabled {
    background-color: #f8f9fa;
    cursor: not-allowed;
}

/* ============================
   Автоподстановка
   ============================ */
.autocomplete-wrapper {
    position: relative;
}

.autocomplete-list {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    border: 2px solid var(--primary-color);
    border-top: none;
    border-radius: 0 0 8px 8px;
    max-height: 250px;
    overflow-y: auto;
    z-index: 1000;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    display: none;
}

.autocomplete-list.show {
    display: block;
}

.autocomplete-item {
    padding: 0.75rem 1rem;
    cursor: pointer;
    transition: background-color 0.2s ease;
    border-bottom: 1px solid #e9ecef;
}

.autocomplete-item:last-child {
    border-bottom: none;
}

.autocomplete-item:hover,
.autocomplete-item.active {
    background-color: #e7f1ff;
}

.autocomplete-item-title {
    font-weight: 500;
    color: #212529;
}

.autocomplete-item-subtitle {
    font-size: 0.875rem;
    color: #6c757d;
    margin-top: 0.25rem;
}

.autocomplete-loading {
    padding: 0.75rem 1rem;
    text-align: center;
    color: var(--secondary-color);
}

.autocomplete-no-results {
    padding: 0.75rem 1rem;
    text-align: center;
    color: var(--secondary-color);
}

/* ============================
   Кнопки
   ============================ */
.btn {
    border-radius: 8px;
    padding: 0.75rem 2rem;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
}

.btn-lg {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

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

.btn i {
    margin-right: 0.5rem;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #5568d3 0%, #65408b 100%);
}

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

.btn-secondary:hover {
    background-color: #5a6268;
}

/* ============================
   Результаты и сообщения
   ============================ */
#calculationResult {
    animation: slideIn 0.5s ease;
}

#resultBlock {
    animation: slideIn 0.5s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.alert {
    border-radius: 10px;
    border: none;
    padding: 1.25rem;
}

.alert-success {
    background-color: #d1e7dd;
    color: #0f5132;
}

.alert-danger {
    background-color: #f8d7da;
    color: #842029;
}

/* ============================
   Индикатор загрузки
   ============================ */
#loadingIndicator {
    padding: 2rem;
}

.spinner-border {
    width: 3rem;
    height: 3rem;
}

/* ============================
   Валидация
   ============================ */
.was-validated .form-control:valid,
.was-validated .form-select:valid {
    border-color: var(--success-color);
}

.was-validated .form-control:invalid,
.was-validated .form-select:invalid {
    border-color: var(--danger-color);
}

.invalid-feedback {
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* ============================
   Чекбоксы и радиокнопки
   ============================ */
.form-check-input {
    width: 1.25rem;
    height: 1.25rem;
    margin-top: 0.125rem;
    cursor: pointer;
}

.form-check-input:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.form-check-label {
    cursor: pointer;
    margin-left: 0.5rem;
}

/* Стили для переключателя режимов */
.btn-group {
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.btn-check:checked + .btn-outline-success {
    background-color: var(--success-color);
    border-color: var(--success-color);
    color: white;
}

.btn-outline-success {
    transition: all 0.3s ease;
}

.btn-outline-success:hover {
    background-color: rgba(25, 135, 84, 0.1);
}

#senderApiBlock {
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================
   Адаптивность
   ============================ */
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }

    .card-body {
        padding: 1rem;
    }

    .btn-lg {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }

    .d-md-flex {
        flex-direction: column;
    }

    .d-md-flex .btn {
        width: 100%;
        margin-bottom: 0.5rem;
    }
}

/* ============================
   Анимации при наведении
   ============================ */
.form-control,
.form-select {
    position: relative;
}

.form-control:hover:not(:disabled),
.form-select:hover:not(:disabled) {
    border-color: var(--primary-color);
}

/* ============================
   Скроллбар для автоподстановки
   ============================ */
.autocomplete-list::-webkit-scrollbar {
    width: 8px;
}

.autocomplete-list::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 0 0 8px 0;
}

.autocomplete-list::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

.autocomplete-list::-webkit-scrollbar-thumb:hover {
    background: #0b5ed7;
}

/* ============================
   Дополнительные утилиты
   ============================ */
.text-muted {
    opacity: 0.8;
}

small.text-muted {
    display: block;
    margin-top: 0.25rem;
}

/* Улучшение читаемости цен */
#deliveryCost,
#ttnNumber {
    font-family: 'Courier New', monospace;
    letter-spacing: 1px;
}

/* Иконки в заголовках */
.bi {
    vertical-align: middle;
}

/* Переключатель адреса скрыт по умолчанию через класс d-none */
#senderAddressMode.d-none {
    display: none !important;
    visibility: hidden !important;
}

/* Переключатель адреса показывается только когда класс d-none удален И добавлен класс d-block */
#senderAddressMode.d-block {
    display: block !important;
    visibility: visible !important;
}

/* Дополнительная защита: если нет класса d-block, скрываем */
#senderAddressMode:not(.d-block) {
    display: none !important;
}

/* ============================
   Блок "Последний раз"
   ============================ */
#senderLastUsedBlock {
    animation: fadeIn 0.3s ease;
}

#editSenderListBtn {
    font-size: 0.9rem;
    color: var(--success-color);
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
}

#editSenderListBtn:hover {
    color: #146c43;
    text-decoration: underline !important;
    transform: translateX(3px);
}

#editSenderListBtn i {
    font-size: 1rem;
}

/* Стили для комментария к адресу */
#senderAddressComment {
    border-color: #e9ecef;
}

#senderAddressComment:focus {
    border-color: var(--info-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 202, 240, 0.15);
}

/* ============================
   Визуальная индикация автозаполненных полей
   ============================ */
.form-control.autofilled {
    background-color: #e7f1ff;
    border-color: #0d6efd;
    animation: pulse 0.5s ease;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(13, 110, 253, 0.4);
    }
    50% {
        box-shadow: 0 0 0 10px rgba(13, 110, 253, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(13, 110, 253, 0);
    }
}

.form-control.autofilled:focus {
    background-color: white;
}

/* Блок выбора адреса из API */
#senderAddressApiBlock {
    animation: fadeIn 0.3s ease;
    background-color: #f8f9fa;
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid #dee2e6;
}