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

.user-section { display: flex; flex-direction: column; gap: 0.4rem; margin: 0.5rem 0 0.75rem; }
.btn-cabinet, .btn-install {
    display: block; text-align: center; padding: 0.55rem 0.75rem;
    background: rgba(99,102,241,0.15); color: #c7d2fe; border: 1px solid rgba(99,102,241,0.3);
    border-radius: 10px; text-decoration: none; font-size: 0.9rem; cursor: pointer;
}
.btn-cabinet:hover, .btn-install:hover { background: rgba(99,102,241,0.25); }

:root {
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --secondary-color: #8b5cf6;
    --background: #0f172a;
    --surface: #1e293b;
    --surface-hover: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --border-color: #334155;
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
}

body.light-theme {
    --background: #f8fafc;
    --surface: #ffffff;
    --surface-hover: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
}

.app-container {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

.sidebar {
    width: 320px;
    background: var(--surface);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.sidebar-header h1 {
    font-size: 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.theme-toggle {
    background: var(--background);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.theme-toggle:hover {
    background: var(--surface-hover);
    transform: rotate(180deg);
}

.subtitle {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.balance-section {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.balance-info {
    display: flex;
    flex-direction: column;
}

.balance-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.balance-amount {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--success);
}

.btn-refresh {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.5rem;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-refresh:hover {
    background: var(--surface-hover);
    transform: rotate(180deg);
}

.nav-tabs {
    display: flex;
    flex-direction: column;
    padding: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.nav-tab {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 0.75rem 1rem;
    text-align: left;
    cursor: pointer;
    border-radius: 0.5rem;
    transition: all 0.2s;
    font-size: 0.95rem;
    margin-bottom: 0.25rem;
}

.nav-tab:hover {
    background: var(--surface-hover);
    color: var(--text-primary);
}

.nav-tab.active {
    background: var(--primary-color);
    color: white;
}

.model-selector {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.model-selector label {
    display: block;
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.model-selector select {
    width: 100%;
    background: var(--background);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.75rem;
    border-radius: 0.5rem;
    font-size: 0.95rem;
    cursor: pointer;
}

.model-info {
    margin-top: 0.75rem;
    padding: 0.75rem;
    background: var(--background);
    border-radius: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-secondary);
    display: none;
}

.model-info.visible {
    display: block;
}

.pricing-info {
    margin-top: 0.5rem;
    padding: 0.75rem;
    background: var(--surface-hover);
    border-radius: 0.5rem;
    border-left: 3px solid var(--success);
}

.pricing-info strong {
    color: var(--success);
    display: block;
    margin-bottom: 0.5rem;
}

.price-item {
    display: inline-block;
    color: var(--text-primary);
    font-size: 0.85rem;
    line-height: 1.6;
}

.settings-section {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.settings-section h3 {
    font-size: 1rem;
    margin-bottom: 1rem;
}

.setting-group {
    margin-bottom: 1rem;
}

.setting-group label {
    display: block;
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.setting-group input[type="range"] {
    width: 100%;
    accent-color: var(--primary-color);
}

.setting-group input[type="checkbox"] {
    margin-right: 0.5rem;
    accent-color: var(--primary-color);
}

.btn-clear {
    margin: 1rem 1.5rem;
    padding: 0.75rem;
    background: var(--error);
    color: white;
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    font-size: 0.95rem;
    transition: all 0.2s;
}

.btn-clear:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.main-content {
    flex: 1;
    overflow: hidden;
    position: relative;
}

.tab-content {
    display: none;
    height: 100%;
    overflow-y: auto;
}

.tab-content.active {
    display: block;
}

.chat-container {
    height: 100%;
    display: flex;
    flex-direction: column;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 2rem;
}

.welcome-message {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-secondary);
}

.welcome-message h2 {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.message {
    margin-bottom: 1.5rem;
    display: flex;
    gap: 1rem;
    animation: fadeIn 0.3s ease-in;
}

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

.message.user {
    flex-direction: row-reverse;
}

.message-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.message.user .message-avatar {
    background: var(--secondary-color);
}

.message-content {
    max-width: 70%;
    background: var(--surface);
    padding: 1rem 1.25rem;
    border-radius: 1rem;
    position: relative;
}

.message.user .message-content {
    background: var(--primary-color);
}

.message-text {
    white-space: pre-wrap;
    word-wrap: break-word;
}

.message-media {
    margin-top: 0.75rem;
}

.message-media img,
.message-media video,
.message-media audio {
    max-width: 100%;
    border-radius: 0.5rem;
}

.message-actions {
    margin-top: 0.75rem;
    display: flex;
    gap: 0.5rem;
}

.btn-action {
    padding: 0.5rem 1rem;
    background: var(--background);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 0.5rem;
    cursor: pointer;
    font-size: 0.875rem;
    transition: all 0.2s;
}

.btn-action:hover {
    background: var(--surface-hover);
}

.chat-input-container {
    padding: 1.5rem;
    background: var(--surface);
    border-top: 1px solid var(--border-color);
}

.attachment-preview {
    margin-bottom: 1rem;
    display: none;
}

.attachment-preview.visible {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.attachment-item {
    position: relative;
    display: inline-block;
}

.attachment-item img {
    max-width: 100px;
    max-height: 100px;
    border-radius: 0.5rem;
    object-fit: cover;
}

.attachment-remove {
    position: absolute;
    top: -8px;
    right: -8px;
    background: var(--error);
    color: white;
    border: none;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    cursor: pointer;
    font-size: 1rem;
    line-height: 1;
}

.input-wrapper {
    display: flex;
    gap: 0.75rem;
    align-items: flex-end;
}

.btn-attach {
    background: var(--background);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.75rem;
    border-radius: 0.5rem;
    cursor: pointer;
    font-size: 1.25rem;
    transition: all 0.2s;
}

.btn-attach:hover {
    background: var(--surface-hover);
}

#chatInput {
    flex: 1;
    background: var(--background);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    resize: none;
    font-family: inherit;
    font-size: 0.95rem;
    max-height: 150px;
}

#chatInput:focus {
    outline: none;
    border-color: var(--primary-color);
}

.btn-send {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 600;
    transition: all 0.2s;
}

.btn-send:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
}

.btn-send:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.media-generator {
    padding: 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.media-generator h2 {
    margin-bottom: 2rem;
}

.generator-form {
    background: var(--surface);
    padding: 2rem;
    border-radius: 1rem;
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    background: var(--background);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.75rem;
    border-radius: 0.5rem;
    font-family: inherit;
    font-size: 0.95rem;
}

.form-group textarea {
    resize: vertical;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.image-preview {
    margin-top: 1rem;
    display: none;
}

.image-preview.visible {
    display: block;
}

.image-preview img {
    max-width: 200px;
    border-radius: 0.5rem;
}

.generate-price-row {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.generate-price-row .btn-generate {
    flex: 1;
}

.price-badge {
    display: none;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    background: var(--success);
    color: white;
    border-radius: 0.5rem;
    font-size: 0.9rem;
    font-weight: 600;
    white-space: nowrap;
    min-width: fit-content;
}

.btn-generate {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    transition: all 0.2s;
}

.btn-generate:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-generate:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.generation-result {
    display: none;
}

.generation-result.visible {
    display: block;
}

.result-item {
    background: var(--surface);
    padding: 1.5rem;
    border-radius: 1rem;
    margin-bottom: 1rem;
}

.result-item img,
.result-item video {
    max-width: 100%;
    border-radius: 0.5rem;
    margin-bottom: 1rem;
}

.result-actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.history-container {
    padding: 2rem;
}

.last-result-section {
    background: var(--surface);
    border-radius: 1rem;
    padding: 1.5rem;
    margin-bottom: 2rem;
    border: 2px solid var(--primary-color);
}

.last-result-section h3 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.last-result-item {
    background: var(--background);
    border-radius: 0.75rem;
    padding: 1rem;
}

.last-result-info {
    margin-top: 0.75rem;
}

.last-result-type {
    font-size: 0.875rem;
    color: var(--primary-color);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.last-result-prompt {
    color: var(--text-primary);
    font-size: 1rem;
    line-height: 1.5;
    margin-bottom: 0.5rem;
}

.last-result-date {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.history-filters {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.5rem 1rem;
    background: var(--surface);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all 0.2s;
}

.filter-btn:hover {
    background: var(--surface-hover);
}

.filter-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.history-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    color: var(--text-secondary);
    padding: 4rem;
}

.history-item {
    background: var(--surface);
    border-radius: 1rem;
    overflow: hidden;
    transition: all 0.2s;
    cursor: pointer;
}

.history-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}

.history-item-preview {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background: var(--background);
}

.history-item-info {
    padding: 1rem;
}

.history-item-type {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.history-item-title {
    margin-top: 0.5rem;
    font-weight: 600;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.history-item-date {
    margin-top: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.visible {
    display: flex;
}

.modal-content {
    background: var(--surface);
    border-radius: 1rem;
    max-width: 800px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 2rem;
    cursor: pointer;
    line-height: 1;
}

.modal-body {
    padding: 1.5rem;
}

.edit-controls {
    margin-top: 1.5rem;
}

.edit-control {
    margin-bottom: 1rem;
}

.history-detail h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.original-prompt {
    background: var(--background);
    padding: 0.75rem;
    border-radius: 0.5rem;
    color: var(--text-secondary);
    font-style: italic;
    margin-top: 0.5rem;
}

.modal-actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-top: 1.5rem;
}

.edit-model-select {
    width: 100%;
    background: var(--background);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.75rem;
    border-radius: 0.5rem;
    font-size: 0.95rem;
    cursor: pointer;
}

.loading-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 999;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.loading-overlay.visible {
    display: flex;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-overlay p {
    margin-top: 1rem;
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    .app-container {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        max-height: 50vh;
    }

    .message-content {
        max-width: 85%;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .history-list {
        grid-template-columns: 1fr;
    }
}