:root {
    /* Default theme */
    --primary-color: #2563eb;
    --primary-color-rgb: 37, 99, 235; /* RGB values for primary color */
    --secondary-color: #1e40af;
    --accent-color: #3b82f6;
    --background-color: #f8fafc;
    --card-background: #ffffff;
    --text-color: #1e293b;
    --border-color: #e2e8f0;
    --success-color: #22c55e;
    --error-color: #ef4444;
    --user-message-bg: #2563eb;
    --user-message-color: #ffffff;
    --assistant-message-bg: #f1f5f9;
    --assistant-message-color: #1e293b;
    --button-hover: #1e40af;
    --header-bg: linear-gradient(135deg, #2563eb, #1e40af);
}

/* Blue Theme */
.theme-blue {
    --primary-color: #0ea5e9;
    --primary-color-rgb: 14, 165, 233; /* RGB values for primary color */
    --secondary-color: #0369a1;
    --accent-color: #38bdf8;
    --background-color: #f0f9ff;
    --card-background: #ffffff;
    --text-color: #0c4a6e;
    --border-color: #bae6fd;
    --user-message-bg: #0ea5e9;
    --user-message-color: #ffffff;
    --assistant-message-bg: #e0f2fe;
    --assistant-message-color: #0c4a6e;
    --button-hover: #0369a1;
    --header-bg: linear-gradient(135deg, #0ea5e9, #0369a1);
}

/* Green Theme */
.theme-green {
    --primary-color: #10b981;
    --primary-color-rgb: 16, 185, 129; /* RGB values for primary color */
    --secondary-color: #047857;
    --accent-color: #34d399;
    --background-color: #ecfdf5;
    --card-background: #ffffff;
    --text-color: #064e3b;
    --border-color: #a7f3d0;
    --user-message-bg: #10b981;
    --user-message-color: #ffffff;
    --assistant-message-bg: #d1fae5;
    --assistant-message-color: #064e3b;
    --button-hover: #047857;
    --header-bg: linear-gradient(135deg, #10b981, #047857);
}

/* Purple Theme */
.theme-purple {
    --primary-color: #8b5cf6;
    --primary-color-rgb: 139, 92, 246; /* RGB values for primary color */
    --secondary-color: #6d28d9;
    --accent-color: #a78bfa;
    --background-color: #f5f3ff;
    --card-background: #ffffff;
    --text-color: #4c1d95;
    --border-color: #ddd6fe;
    --user-message-bg: #8b5cf6;
    --user-message-color: #ffffff;
    --assistant-message-bg: #ede9fe;
    --assistant-message-color: #4c1d95;
    --button-hover: #6d28d9;
    --header-bg: linear-gradient(135deg, #8b5cf6, #6d28d9);
}

/* Orange Theme */
.theme-orange {
    --primary-color: #f97316;
    --primary-color-rgb: 249, 115, 22; /* RGB values for primary color */
    --secondary-color: #c2410c;
    --accent-color: #fb923c;
    --background-color: #fff7ed;
    --card-background: #ffffff;
    --text-color: #7c2d12;
    --border-color: #fed7aa;
    --user-message-bg: #f97316;
    --user-message-color: #ffffff;
    --assistant-message-bg: #ffedd5;
    --assistant-message-color: #7c2d12;
    --button-hover: #c2410c;
    --header-bg: linear-gradient(135deg, #f97316, #c2410c);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.5;
    transition: all 0.3s ease;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

header {
    margin-bottom: 2rem;
    background: var(--header-bg);
    padding: 1.5rem;
    border-radius: 0.5rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

h1 {
    color: white;
    margin-bottom: 0;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.api-key-section {
    margin-bottom: 1.5rem;
    display: flex;
    gap: 1rem;
    align-items: center;
}

input[type="password"],
input[type="text"],
input[type="number"],
textarea {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    font-size: 1rem;
    width: 300px;
}

button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.2s;
}

button:hover {
    background-color: var(--secondary-color);
}

.mode-toggle {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.mode-btn {
    background-color: var(--border-color);
    color: var(--text-color);
}

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

/* Chat Mode Selector */
.chat-mode-selector {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1rem;
    padding: 0.5rem;
    background-color: var(--background-color);
    border-radius: 0.5rem;
}

.chat-mode-btn {
    padding: 0.5rem 1.5rem;
    border-radius: 0.375rem;
    background-color: rgba(var(--primary-color-rgb), 0.5);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: all 0.2s;
    font-weight: 500;
}

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

/* Custom Chat Settings */
.custom-chat-settings {
    background-color: var(--background-color);
    border-radius: 0.5rem;
    padding: 1rem;
    margin-bottom: 1rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.settings-row {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.settings-group {
    flex: 1;
    min-width: 150px;
}

.settings-group label {
    display: block;
    margin-bottom: 0.25rem;
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-color);
}

.prompt-actions {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.small-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 0.3rem 0.8rem;
    border-radius: 0.25rem;
    cursor: pointer;
    font-size: 0.9rem;
    transition: background-color 0.2s;
}

.small-btn:hover {
    background-color: var(--primary-color);
}

.settings-group select {
    width: 100%;
    padding: 0.5rem;
    border-radius: 0.25rem;
    border: 1px solid var(--border-color);
    background-color: var(--card-background);
}

.settings-group textarea {
    width: 100%;
    padding: 0.5rem;
    border-radius: 0.25rem;
    border: 1px solid var(--border-color);
    background-color: var(--card-background);
    resize: vertical;
}

.prompt-actions {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.25rem;
}

.small-btn {
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    border: 1px solid var(--border-color);
    cursor: pointer;
    font-size: 0.8rem;
    transition: all 0.2s;
}

.small-btn:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.mode-section {
    background-color: var(--card-background);
    padding: 1.5rem;
    border-radius: 0.5rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    border: 1px solid var(--border-color);
}

.hidden {
    display: none !important;
}

.chat-container {
    display: flex;
    flex-direction: column;
    height: 600px;
}

.messages {
    flex-grow: 1;
    overflow-y: auto;
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    margin-bottom: 1rem;
}

.message {
    margin-bottom: 1rem;
    padding: 0.75rem;
    border-radius: 0.375rem;
}

.user-message {
    background-color: var(--user-message-bg);
    color: var(--user-message-color);
    margin-left: 2rem;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    border-radius: 0.75rem 0.75rem 0 0.75rem;
}

.assistant-message {
    background-color: var(--assistant-message-bg);
    color: var(--assistant-message-color);
    margin-right: 2rem;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    border-radius: 0.75rem 0.75rem 0.75rem 0;
}

.input-area {
    display: flex;
    gap: 1rem;
    align-items: center;
    position: relative;
}

.input-area textarea {
    flex-grow: 1;
    resize: vertical;
    min-height: 60px;
    transition: border-color 0.3s ease;
}

.upload-section {
    margin-bottom: 2rem;
}

.upload-options {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.image-preview {
    max-width: 400px;
    margin: 1rem 0;
}

.image-preview img {
    max-width: 100%;
    border-radius: 0.375rem;
}

.analysis-result {
    margin-top: 2rem;
}

.confirmation-section {
    margin-top: 1rem;
}

.quantity-section {
    margin-top: 1rem;
    display: flex;
    gap: 1rem;
    align-items: center;
}

.parts-section {
    margin-top: 2rem;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

th, td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

th {
    background-color: var(--background-color);
    font-weight: 600;
}

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

/* System Prompt Styles */
.system-prompt-container {
    margin-bottom: 1.5rem;
    padding: 1rem;
    background-color: var(--background-color);
    border-radius: 0.375rem;
}

.system-prompt-container h3 {
    margin-bottom: 0.75rem;
    color: var(--primary-color);
}

#systemPrompt {
    width: 100%;
    margin-bottom: 0.75rem;
    font-size: 0.9rem;
}

.prompt-buttons {
    display: flex;
    gap: 0.75rem;
    justify-content: flex-end;
}

/* Image Upload in Chat */
.image-upload-label {
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--primary-color);
    padding: 0.5rem;
    border-radius: 0.375rem;
    transition: background-color 0.2s;
}

.image-upload-label:hover {
    background-color: var(--border-color);
}

.chat-image-preview {
    max-width: 200px;
    margin: 0.5rem 0;
    border-radius: 0.375rem;
    border: 1px solid var(--border-color);
}

/* Chat Tabs */
.chat-tabs-container {
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.chat-tabs {
    display: flex;
    flex-wrap: nowrap;
    overflow-x: auto;
    gap: 0.5rem;
    flex-grow: 1;
    scrollbar-width: thin;
    padding-bottom: 0.25rem;
}

.chat-tabs::-webkit-scrollbar {
    height: 4px;
}

.chat-tabs::-webkit-scrollbar-thumb {
    background-color: var(--border-color);
    border-radius: 4px;
}

.chat-tab {
    padding: 0.5rem 1rem;
    background-color: var(--background-color);
    border-radius: 0.375rem;
    cursor: pointer;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border: 1px solid transparent;
    transition: all 0.2s;
}

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

.chat-tab:hover:not(.active) {
    border-color: var(--border-color);
}

.chat-tab-close {
    font-size: 1rem;
    line-height: 1;
    opacity: 0.7;
}

.chat-tab-close:hover {
    opacity: 1;
}

.new-chat-btn {
    white-space: nowrap;
    padding: 0.5rem 1rem;
    margin-left: 0.5rem;
}

/* Export Buttons */
.export-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

/* Restore Button */
.restore-container {
    display: flex;
    justify-content: center;
    margin-top: 1.5rem;
}

.restore-btn {
    padding: 0.75rem 1.5rem;
    background-color: var(--accent-color);
    color: white;
    border-radius: 0.375rem;
    font-weight: 500;
    transition: all 0.2s;
    border: none;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.restore-btn:hover:not(:disabled) {
    background-color: var(--primary-color);
    transform: translateY(-1px);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.restore-btn:disabled {
    background-color: var(--border-color);
    color: #888;
    cursor: not-allowed;
}

.export-btn {
    background-color: var(--background-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    transition: all 0.2s;
}

.export-btn:hover {
    background-color: var(--border-color);
    color: var(--text-color);
}

.chat-image-preview-container {
    position: relative;
    display: inline-block;
    margin-right: 0.5rem;
    animation: fadeIn 0.3s ease-in-out;
}

.remove-image-btn {
    position: absolute;
    top: -8px;
    right: -8px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: var(--error-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    line-height: 1;
    padding: 0;
    cursor: pointer;
}

/* Modal Styles */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-content {
    background-color: var(--card-background);
    border-radius: 0.5rem;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    animation: modalFadeIn 0.3s;
}

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

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--header-bg);
    color: white;
    border-radius: 0.5rem 0.5rem 0 0;
}

.modal-header h2 {
    margin: 0;
    font-size: 1.5rem;
}

.close-btn {
    background: transparent;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0;
    line-height: 1;
}

.modal-body {
    padding: 1.5rem;
}

.settings-section {
    margin-bottom: 2rem;
}

.settings-section h3 {
    margin-bottom: 1rem;
    color: var(--primary-color);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

/* Storage Management */
.storage-info {
    background-color: var(--background-color);
    padding: 1rem;
    border-radius: 0.375rem;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    line-height: 1.6;
}

.storage-controls {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.deleted-chats-max {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.deleted-chats-max input {
    width: 80px;
}

.clear-storage {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.clear-api-key {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: 0.5rem;
    font-size: 0.9rem;
}

.danger-btn {
    background-color: var(--error-color);
    color: white;
}

.danger-btn:hover {
    background-color: #d32f2f;
}

.theme-options {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.theme-btn {
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    cursor: pointer;
    transition: all 0.2s;
}

.theme-btn.active {
    border: 2px solid var(--primary-color);
}

#themeDefault {
    background-color: #2563eb;
    color: white;
}

#themeBlue {
    background-color: #0ea5e9;
    color: white;
}

#themeGreen {
    background-color: #10b981;
    color: white;
}

#themePurple {
    background-color: #8b5cf6;
    color: white;
}

#themeOrange {
    background-color: #f97316;
    color: white;
}

/* Settings Button */
.header-controls {
    display: flex;
    gap: 1rem;
}

.settings-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    cursor: pointer;
    transition: all 0.2s;
}

.settings-btn:hover {
    background-color: rgba(255, 255, 255, 0.3);
}

.settings-btn svg {
    stroke: white;
}

#apiStatus {
    color: var(--success-color);
}

#apiStatus.error {
    color: var(--error-color);
}

/* API Key Popup */
.api-key-popup {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.api-key-popup-content {
    background-color: var(--card-background);
    border-radius: 0.5rem;
    padding: 1.5rem;
    max-width: 500px;
    width: 90%;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    text-align: center;
}

.api-key-popup h3 {
    color: var(--primary-color);
    margin-top: 0;
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.api-key-popup p {
    margin-bottom: 1.5rem;
    color: var(--text-color);
    line-height: 1.5;
}

.api-key-popup-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.api-key-popup button {
    padding: 0.5rem 1rem;
    border-radius: 0.25rem;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s ease;
}

.api-key-popup button.primary-button {
    background-color: var(--primary-color);
    color: white;
    border: none;
}

.api-key-popup button.primary-button:hover {
    background-color: var(--button-hover);
}

.api-key-popup button:not(.primary-button) {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-color);
}

.api-key-popup button:not(.primary-button):hover {
    background-color: var(--background-color);
}

/* Storage Quota Popup */
.storage-quota-popup {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.storage-quota-popup-content {
    background-color: var(--card-background);
    border-radius: 0.5rem;
    padding: 1.5rem;
    max-width: 500px;
    width: 90%;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    text-align: center;
}

.storage-quota-popup h3 {
    color: var(--error-color);
    margin-top: 0;
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.storage-quota-popup p {
    margin-bottom: 1.5rem;
    color: var(--text-color);
    line-height: 1.5;
}

.storage-quota-popup-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.storage-quota-popup button {
    padding: 0.5rem 1rem;
    border-radius: 0.25rem;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s ease;
}

.storage-quota-popup button.primary-button {
    background-color: var(--primary-color);
    color: white;
    border: none;
}

.storage-quota-popup button.primary-button:hover {
    background-color: var(--button-hover);
}

.storage-quota-popup button:not(.primary-button) {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-color);
}

.storage-quota-popup button:not(.primary-button):hover {
    background-color: var(--background-color);
}

@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
    
    .api-key-section {
        flex-direction: column;
        align-items: stretch;
    }
    
    input[type="password"],
    input[type="text"],
    input[type="number"],
    textarea {
        width: 100%;
    }
    
    .upload-options {
        flex-direction: column;
    }
}

/* System Prompt Preview Styles */
.system-prompt-preview {
    margin-top: 0.75rem;
    padding: 0.75rem;
    background-color: var(--assistant-message-bg);
    border-radius: 0.375rem;
    border: 1px solid var(--border-color);
}

.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--primary-color);
}

.system-prompt-content {
    font-size: 0.9rem;
    white-space: pre-wrap;
    max-height: 200px;
    overflow-y: auto;
    padding: 0.5rem;
    background-color: var(--card-background);
    border-radius: 0.25rem;
    border: 1px solid var(--border-color);
}

.custom-settings-actions {
    display: flex;
    justify-content: flex-end;
    margin-top: 0.75rem;
}

/* Drag and drop styles */
.drag-over {
    position: relative;
}

.drag-over::after {
    content: 'Drop image here';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(var(--primary-color-rgb), 0.1);
    border: 2px dashed var(--primary-color);
    border-radius: 0.375rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--primary-color);
    pointer-events: none;
    z-index: 10;
}

.drag-over textarea {
    border-color: var(--primary-color);
}

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