/* Base Styles and Variables */
:root {
    --bg-color: #1a1a2e;
    --surface-color: #1f233e;
    --primary-color: #e94560;
    --secondary-color: #0f3460;
    --text-color: #e0e0e0;
    --text-muted-color: #a0a0a0;
    --border-color: #3a3f5e;
    --success-color: #2ecc71;
    --warning-color: #f39c12;
    --info-color: #3498db;
    --font-family: 'Inter', sans-serif;
    --border-radius: 8px;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    min-height: 100vh;
    padding: 20px;
}

.app-container {
    background-color: var(--surface-color);
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    width: 100%;
    max-width: 500px;
}

header {
    text-align: center;
    margin-bottom: 10px;
    color: var(--primary-color);
}

header h1 {
    font-weight: 700;
    margin-bottom: 5px;
}

/* Loading Indicator */
.loading-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 0.9em;
    color: var(--text-muted-color);
    margin-top: 5px;
    margin-bottom: 20px;
    min-height: 20px;
    visibility: visible;
    opacity: 1;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}
.loading-indicator.hidden {
    visibility: hidden;
    opacity: 0;
}


/* Section Styles */
.hidden-section {
    display: none;
}
.active-section {
    display: block;
}
.hidden-step {
    display: none !important;
}

/* Exchange Form */
#exchange-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px; /* Уменьшен для компактности */
}

.form-group label {
    font-size: 0.9em;
    color: var(--text-muted-color);
    font-weight: 500;
}

.input-wrapper {
    display: flex;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    align-items: stretch;
}

.input-wrapper input[type="number"],
.input-wrapper input[type="text"] {
    flex-grow: 1;
    padding: 12px 15px;
    border: none;
    background: transparent;
    color: var(--text-color);
    font-size: 1.1em;
    min-width: 50px;
    outline: none;
}
.input-wrapper input::placeholder {
    color: var(--text-muted-color);
}
.input-wrapper input[type="number"]::-webkit-outer-spin-button,
.input-wrapper input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}
.input-wrapper input[type="number"] {
    -moz-appearance: textfield;
}

.coin-selector {
    display: flex;
    align-items: center;
    padding: 0 15px;
    background-color: var(--secondary-color);
    cursor: pointer;
    border-left: 1px solid var(--border-color);
    transition: background-color 0.2s ease;
    min-width: 100px;
    justify-content: space-between;
}
.coin-selector:hover {
    background-color: #164675;
}

.coin-selector img {
    width: 24px;
    height: 24px;
    margin-right: 8px;
    border-radius: 50%;
    object-fit: cover;
}

.coin-selector span {
    font-weight: 500;
    margin-right: 5px;
}

.coin-selector i {
    font-size: 0.8em;
    color: var(--text-muted-color);
}

/* Инфо под полями ввода (объединены) */
.balance-info, .rate-info, .usd-value {
    font-size: 0.85em;
    color: var(--text-muted-color);
    margin-top: 4px; /* Уменьшен отступ сверху */
    min-height: 1.2em; /* Резервируем место */
    line-height: 1.3; /* Чуть плотнее строки */
}
.send-block .usd-value { /* USD под "Отдаете" */
    color: var(--success-color);
    font-weight: 500;
}
.send-block .balance-info { /* Мин. сумма под "Отдаете" */
    color: var(--info-color);
}
.receive-block .usd-value { /* USD под "Получаете" */
    color: var(--success-color);
    font-weight: 500;
}
.receive-block .rate-info { /* Курс под "Получаете" */
    /* Стандартный стиль text-muted-color */
}


.swap-button-container {
    display: flex;
    justify-content: center;
    margin: -10px 0;
}

#swap-button {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    color: var(--primary-color);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.1em;
    transition: transform 0.2s ease, background-color 0.2s ease;
}
#swap-button:hover {
    background-color: var(--bg-color);
    transform: rotate(180deg);
}

#recipient-address {
    width: 100%;
    padding: 12px 15px;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-color);
    font-size: 1em;
}

/* Предупреждение под адресом получателя */
.important-warning {
    color: var(--warning-color);
    font-size: 0.85em;
    margin-top: 8px;
    padding: 8px 10px;
    background-color: rgba(243, 156, 18, 0.1);
    border-left: 3px solid var(--warning-color);
    border-radius: 4px;
}
.important-warning i {
    margin-right: 5px;
}


.fee-info {
    font-size: 0.8em;
    color: var(--text-muted-color);
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 5px;
    padding: 10px 0;
    border-top: 1px dashed var(--border-color);
    border-bottom: 1px dashed var(--border-color);
    margin-top: 10px;
}
.fee-info span#network-fee-value {
    color: var(--warning-color);
    font-weight: 500;
}


.cta-button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 15px;
    border-radius: var(--border-radius);
    font-size: 1.1em;
    font-weight: 700;
    cursor: pointer;
    transition: background-color 0.2s ease;
    width: 100%;
    margin-top: 10px;
}
.cta-button:hover {
    background-color: #d83c54;
}

/* Стили секции статуса */
#status-section {
    text-align: center;
}
#status-section h2 {
    margin-bottom: 25px;
    color: var(--primary-color);
}

.status-step {
    padding: 20px;
    background-color: var(--bg-color);
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.status-step p {
    margin-bottom: 15px;
    font-size: 1.05em;
}
.status-step strong {
    color: var(--primary-color);
}
.status-step small {
    color: var(--text-muted-color);
    font-size: 0.9em;
}


.deposit-address-block {
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    padding: 10px 15px;
    border-radius: var(--border-radius);
    margin: 10px auto;
    word-break: break-all;
    max-width: 95%;
}

.deposit-address-block code {
    font-family: monospace;
    font-size: 1.05em;
    color: var(--text-color);
    margin-right: 10px;
    flex-grow: 1;
    text-align: left;
}

#copy-address-btn {
    background: none;
    border: none;
    color: var(--text-muted-color);
    cursor: pointer;
    font-size: 1.2em;
    padding: 5px;
}
#copy-address-btn:hover {
    color: var(--primary-color);
}

/* Инфо о сети и мемо */
.network-info, .memo-info {
    font-size: 0.9em;
    color: var(--info-color);
    margin-top: 5px;
    margin-bottom: 10px;
    padding: 5px 10px;
    background-color: rgba(52, 152, 219, 0.1);
    border-left: 3px solid var(--info-color);
    border-radius: 4px;
    max-width: 95%;
    display: none;
}
.network-info.visible, .memo-info.visible {
    display: block;
}

.warning {
    color: var(--warning-color);
    font-size: 0.9em !important;
    font-weight: 500;
    margin-top: 15px;
}

.success-icon {
    color: var(--success-color);
    margin-bottom: 15px;
}

.explorer-link {
    display: inline-block;
    margin-top: 10px;
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.9em;
}
.explorer-link:hover {
    text-decoration: underline;
}

/* Кнопки действий на шагах статуса */
.action-buttons {
    margin-top: 25px;
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
    width: 100%;
}

/* Текст под кнопкой Назад */
.reassurance-text {
    font-size: 0.85em;
    color: var(--text-muted-color);
    margin-top: 15px;
    max-width: 90%;
}
.reassurance-text i {
    margin-right: 4px;
    color: var(--info-color);
}


/* Кнопка "Назад" */
.secondary-button {
    background-color: transparent;
    color: var(--text-muted-color);
    border: 1px solid var(--border-color);
    padding: 10px 20px;
    border-radius: var(--border-radius);
    font-size: 0.9em;
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
    display: inline-flex;
    align-items: center;
}
.secondary-button:hover {
    background-color: var(--bg-color);
    color: var(--text-color);
    border-color: var(--text-muted-color);
}
.secondary-button i {
    margin-right: 5px;
}


/* Кнопка симуляции */
.simulate-button {
    background-color: var(--secondary-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    padding: 10px 20px;
    border-radius: var(--border-radius);
    font-size: 0.9em;
    cursor: pointer;
    transition: background-color 0.2s ease, border-color 0.2s ease;
}
.simulate-button:hover {
    background-color: #164675;
    border-color: var(--primary-color);
}


/* Стили модального окна */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.7);
    align-items: center;
    justify-content: center;
    padding: 15px;
}

.modal-content {
    background-color: var(--surface-color);
    margin: auto;
    padding: 25px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    width: 95%;
    max-width: 450px;
    display: flex;
    flex-direction: column;
    max-height: 85vh;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
}
.modal-header h3 {
    color: var(--primary-color);
}

#close-modal-btn {
    background: none;
    border: none;
    color: var(--text-muted-color);
    font-size: 1.8em;
    cursor: pointer;
    line-height: 1;
}
#close-modal-btn:hover {
    color: var(--primary-color);
}

#search-coin-input {
    width: 100%;
    padding: 10px 15px;
    margin-bottom: 15px;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-color);
}

#coin-list {
    list-style: none;
    padding: 0;
    margin: 0;
    overflow-y: auto;
    flex-grow: 1;
}
#coin-list li.no-results {
    color: var(--text-muted-color);
    padding: 12px 10px;
    text-align: center;
}

#coin-list li {
    display: flex;
    align-items: center;
    padding: 12px 10px;
    cursor: pointer;
    border-radius: var(--border-radius);
    transition: background-color 0.2s ease;
}
#coin-list li:hover {
    background-color: var(--bg-color);
}

#coin-list img {
    width: 28px;
    height: 28px;
    margin-right: 12px;
    border-radius: 50%;
}

#coin-list .coin-name {
    flex-grow: 1;
    font-weight: 500;
}

#coin-list .coin-ticker {
    color: var(--text-muted-color);
    font-size: 0.9em;
}

/* Спиннер загрузки */
.spinner {
    border: 4px solid rgba(255, 255, 255, 0.2);
    border-left-color: var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px auto;
}
.spinner.small {
    width: 16px;
    height: 16px;
    border-width: 2px;
    margin: 0;
}

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

/* Адаптивность */
@media (min-width: 600px) {
    .app-container {
        padding: 40px;
    }
}

footer {
    text-align: center;
    margin-top: 30px;
    font-size: 0.8em;
    color: var(--text-muted-color);
}

/* --- Support Chat Styles --- */

/* Chat Button */
.support-chat-button {
    position: fixed;
    bottom: 25px;
    right: 25px;
    width: 60px;
    height: 60px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 1.8em;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    z-index: 998;
    transition: background-color 0.2s ease, transform 0.2s ease;
}
.support-chat-button:hover {
    background-color: #d83c54;
    transform: scale(1.05);
}

/* Chat Window */
.support-chat-window {
    position: fixed;
    bottom: 100px;
    right: 25px;
    width: 90%;
    max-width: 350px;
    height: 70%;
    max-height: 500px;
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.4);
    z-index: 999;
    display: none; /* Hidden by default */
    flex-direction: column;
    overflow: hidden;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}
.support-chat-window.visible {
    display: flex;
    opacity: 1;
    transform: translateY(0);
}

/* Chat Header */
.chat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 15px;
    background-color: var(--secondary-color);
    border-bottom: 1px solid var(--border-color);
}
.chat-header h4 {
    margin: 0;
    font-weight: 500;
    color: var(--text-color);
}
.close-chat-btn {
    background: none;
    border: none;
    color: var(--text-muted-color);
    font-size: 1.6em;
    cursor: pointer;
    line-height: 1;
    padding: 0 5px;
}
.close-chat-btn:hover {
    color: var(--primary-color);
}

/* Chat Messages Area */
.chat-messages {
    flex-grow: 1;
    padding: 15px;
    overflow-y: auto;
    background-color: var(--bg-color);
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.chat-placeholder {
    color: var(--text-muted-color);
    font-style: italic;
    text-align: center;
    margin-top: auto;
    margin-bottom: auto;
}

/* Chat Messages */
.chat-message {
    padding: 8px 12px;
    border-radius: var(--border-radius);
    max-width: 80%;
    word-wrap: break-word;
}
.user-message {
    background-color: var(--primary-color);
    color: white;
    align-self: flex-end;
    border-bottom-right-radius: 2px;
}
/* Support message style (for future use) */
/* .support-message {
    background-color: var(--secondary-color);
    color: var(--text-color);
    align-self: flex-start;
    border-bottom-left-radius: 2px;
} */


/* Chat Input Area */
.chat-input-area {
    display: flex;
    padding: 10px;
    border-top: 1px solid var(--border-color);
    background-color: var(--surface-color);
}
#chat-input {
    flex-grow: 1;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-color);
    color: var(--text-color);
    border-radius: var(--border-radius);
    margin-right: 10px;
    outline: none;
}
#chat-input:focus {
    border-color: var(--primary-color);
}
.send-chat-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 0 15px;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: 500;
    transition: background-color 0.2s ease;
}
.send-chat-btn:hover {
    background-color: #d83c54;
}

/* Chat Responsiveness */
@media (max-width: 480px) {
    .support-chat-window {
        bottom: 0;
        right: 0;
        width: 100%;
        height: 100%;
        max-width: none;
        max-height: none;
        border-radius: 0;
        border: none;
    }
    .support-chat-button {
        bottom: 15px;
        right: 15px;
        width: 50px;
        height: 50px;
        font-size: 1.5em;
    }
}