/* Import modern font */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&display=swap');

/* Base theme variables */
:root {
    /* Light theme (default) */
    --background-color: #f8f9fa;
    --text-color: #212529;
    --card-background: #ffffff;
    --border-color: #e9ecef;
    --input-background: #ffffff;
    --button-background: #e03131;
    --button-text: #ffffff;
    --button-hover: #228be6;
    --button-active: #1971c2;
    --input-focus-border: #1971c2;
    --input-focus-shadow: rgba(25, 113, 194, 0.2);
    --placeholder-color: #868e96;
    --upgrade-button-background: #f39c12;
    --upgrade-button-hover: #e67e22;
    --success-color: #28a745;
}

/* Dark theme - automatically applied when system is in dark mode */
@media (prefers-color-scheme: dark) {
    :root {
        --background-color: #1a1b1e;
        --text-color: #ffffff;
        --card-background: #25262b;
        --border-color: #2c2d32;
        --input-background: #2c2d32;
        --button-background: #e03131;
        --button-text: #ffffff;
        --button-hover: #228be6;
        --button-active: #1971c2;
        --input-focus-border: #1971c2;
        --input-focus-shadow: rgba(25, 113, 194, 0.2);
        --placeholder-color: #868e96;
        --upgrade-button-background: #f39c12;
        --upgrade-button-hover: #e67e22;
        --success-color: #28a745;
    }
}

/* Base styles */
body {
    background-color: var(--background-color);
    color: var(--text-color);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* User Authentication Styles */
.user-section {
    position: absolute;
    top: 20px;
    right: 20px;
    z-index: 100;
}

.user-btn {
    background: var(--card-background);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 10px 15px;
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 16px;
    transition: all 0.2s ease;
    color: var(--text-color);
}

.user-btn:hover {
    background: var(--button-hover);
    color: white;
    border-color: var(--button-hover);
}

.user-menu {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    background: var(--card-background);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    min-width: 200px;
    padding: 10px;
}

.user-info {
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 10px;
}

.user-info p {
    margin: 5px 0;
    font-size: 14px;
}

.user-status {
    color: var(--placeholder-color);
    font-size: 12px !important;
}

.user-menu-btn {
    width: 100%;
    padding: 10px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-color);
    cursor: pointer;
    font-size: 14px;
    transition: all 0.2s ease;
}

.user-menu-btn:hover {
    background: var(--button-hover);
    color: white;
    border-color: var(--button-hover);
}

/* Authentication Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal {
    background: var(--card-background);
    border-radius: 12px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    padding: 20px 30px 10px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
}

.modal-body {
    padding: 20px 30px;
}

.modal-body p {
    margin: 0 0 20px 0;
    color: var(--placeholder-color);
}

.modal-body input[type="email"] {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--input-background);
    color: var(--text-color);
    font-size: 16px;
    margin-bottom: 15px;
    box-sizing: border-box;
}

.modal-body input[type="email"]:focus {
    outline: none;
    border-color: var(--input-focus-border);
    box-shadow: 0 0 0 3px var(--input-focus-shadow);
}

.modal-body button[type="submit"] {
    width: 100%;
    padding: 12px 15px;
    background: var(--button-background);
    color: var(--button-text);
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.modal-body button[type="submit"]:hover {
    background: var(--button-hover);
}

.modal-body button[type="submit"]:disabled {
    background: var(--placeholder-color);
    cursor: not-allowed;
}

.modal-footer {
    padding: 10px 30px 20px;
    display: flex;
    justify-content: flex-end;
}

.modal-btn {
    padding: 10px 20px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--card-background);
    color: var(--text-color);
    cursor: pointer;
    font-size: 14px;
    transition: all 0.2s ease;
}

.modal-btn:hover {
    background: var(--button-hover);
    color: white;
    border-color: var(--button-hover);
}

.modal-btn.secondary {
    background: transparent;
}

.success-message {
    background: #d4edda;
    color: #155724;
    padding: 15px;
    border-radius: 8px;
    border: 1px solid #c3e6cb;
}

@media (prefers-color-scheme: dark) {
    .success-message {
        background: #1e3a28;
        color: #7dd87f;
        border-color: #2e5c3e;
    }
}
}

.container {
    background-color: var(--card-background);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 40px;
    margin: 20px auto;
    max-width: 800px;
    width: 100%;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

h1, h2 {
    text-align: center;
    margin: 0;
    line-height: 1.3;
}

h1 {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 8px;
}

h2 {
    font-size: 1.8rem;
    font-weight: 500;
    margin-bottom: 32px;
    color: var(--text-color);
    opacity: 0.9;
}

form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

label {
    font-weight: 500;
    margin-bottom: 8px;
    display: block;
}

input[type="text"], 
textarea {
    background-color: var(--input-background);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    padding: 12px 16px;
    border-radius: 8px;
    width: 100%;
    font-size: 1rem;
    font-family: inherit;
    box-sizing: border-box;
    transition: border-color 0.2s ease;
}

input[type="text"]:focus, 
textarea:focus {
    outline: none;
    border-color: var(--input-focus-border);
    box-shadow: 0 0 0 2px var(--input-focus-shadow);
}

input[type="text"]::placeholder, 
textarea::placeholder {
    color: var(--placeholder-color);
}

textarea {
    min-height: 200px;
    resize: vertical;
}

button {
    background-color: var(--button-background);
    color: var(--button-text);
    border: none;
    padding: 14px 28px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.2s ease;
    margin-top: 12px;
    width: 100%;
}

button:hover {
    background-color: var(--button-hover);
    transform: translateY(-1px);
}

button:active {
    background-color: var(--button-active);
    transform: translateY(0);
}

/* Add smooth transitions */
* {
    transition: background-color 0.2s ease, 
                color 0.2s ease, 
                border-color 0.2s ease, 
                box-shadow 0.2s ease;
}

/* Language Selection Styling */
.language-selection {
    display: flex;
    gap: 20px;
    margin-bottom: 32px;
    justify-content: center;
}

.select-group {
    flex: 1;
    max-width: 200px;
}

.select-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-color);
}

.select-group select {
    width: 100%;
    padding: 12px 16px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background-color: var(--input-background);
    color: var(--text-color);
    font-size: 1rem;
    font-family: inherit;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1em;
}

.select-group select:focus {
    outline: none;
    border-color: var(--input-focus-border);
    box-shadow: 0 0 0 2px var(--input-focus-shadow);
}

.select-group select:hover {
    border-color: var(--input-focus-border);
}

.select-group select option {
    background-color: var(--card-background);
    color: var(--text-color);
    padding: 12px;
    font-size: 1rem;
}

/* Ensure emojis are properly sized in options */
.select-group select option,
.select-group select {
    font-size: 1rem;
    line-height: 1.5;
}

/* Mobile responsiveness for language selection */
@media (max-width: 768px) {
    .language-selection {
        flex-direction: column;
        gap: 16px;
        align-items: center;
    }
    
    .select-group {
        max-width: 100%;
        width: 100%;
    }
    
    .container {
        padding: 20px;
        margin: 10px auto;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    /* Modal adjustments for mobile */
    .modal {
        width: 95%;
        max-height: 95vh;
        margin: 10px;
    }
    
    .modal-footer {
        flex-direction: column;
        gap: 8px;
    }
    
    .modal-btn {
        width: 100%;
        margin: 0;
    }
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
    animation: fadeIn 0.2s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.modal {
    background-color: var(--card-background);
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow: hidden;
    animation: slideIn 0.3s ease-out;
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

@keyframes slideIn {
    from {
        transform: translateY(-20px) scale(0.95);
        opacity: 0;
    }
    to {
        transform: translateY(0) scale(1);
        opacity: 1;
    }
}

.modal-header {
    padding: 24px 24px 16px;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.modal-header h3 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
    color: #e74c3c;
    display: flex;
    align-items: center;
    gap: 8px;
}

.modal-body {
    padding: 24px;
    line-height: 1.6;
    flex: 1;
    overflow-y: auto;
}

.modal-body p {
    margin: 0;
    font-size: 1rem;
    color: var(--text-color);
    text-align: center;
}

.modal-footer {
    padding: 16px 24px 24px;
    display: flex;
    justify-content: center;
    flex-shrink: 0;
}

.modal-btn {
    background-color: var(--button-background);
    color: var(--button-text);
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    min-width: 180px;
}

.modal-btn:hover {
    background-color: var(--button-hover);
    transform: translateY(-1px);
}

.modal-btn:active {
    background-color: var(--button-active);
    transform: translateY(0);
}

/* Loading spinner */
.loading-spinner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 16px;
    color: var(--text-color);
    font-weight: 500;
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-top: 2px solid var(--button-background);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Button disabled state */
button:disabled {
    background-color: var(--border-color) !important;
    color: var(--placeholder-color) !important;
    cursor: not-allowed !important;
    transform: none !important;
}

/* Upgrade Button Styles */
.upgrade-btn {
    background: linear-gradient(135deg, var(--upgrade-button-background), var(--upgrade-button-hover));
    color: white;
    border: none;
    padding: 14px 28px;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 16px;
    box-shadow: 0 4px 12px rgba(243, 156, 18, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.upgrade-btn:hover {
    background: linear-gradient(135deg, var(--upgrade-button-hover), #d35400);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(243, 156, 18, 0.4);
}

.upgrade-btn:active {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(243, 156, 18, 0.3);
}

/* Upgrade Modal Styles */
.upgrade-benefits {
    text-align: left;
}

.upgrade-benefits p {
    text-align: center;
    margin-bottom: 20px;
    font-size: 1.1rem;
    color: var(--text-color);
}

.benefits-list {
    list-style: none;
    padding: 0;
    margin: 20px 0;
}

.benefits-list li {
    padding: 12px 0;
    font-size: 1rem;
    color: var(--text-color);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 12px;
}

.benefits-list li:last-child {
    border-bottom: none;
}

.pricing {
    background: linear-gradient(135deg, var(--upgrade-button-background), var(--upgrade-button-hover));
    color: white;
    padding: 20px;
    border-radius: 12px;
    text-align: center;
    margin: 20px 0;
}

.pricing .price {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.pricing .no-subscription {
    margin: 8px 0 0 0;
    font-size: 0.9rem;
    opacity: 0.9;
}

.modal-footer {
    gap: 12px;
    flex-shrink: 0;
}

.modal-btn.secondary {
    background-color: var(--border-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

.modal-btn.secondary:hover {
    background-color: var(--placeholder-color);
    color: white;
}

.modal-btn.primary {
    background: linear-gradient(135deg, var(--upgrade-button-background), var(--upgrade-button-hover));
    color: white;
    font-weight: 600;
}

.modal-btn.primary:hover {
    background: linear-gradient(135deg, var(--upgrade-button-hover), #d35400);
    transform: translateY(-1px);
}

/* API Key Management Styles */
.api-key-modal {
    max-width: 800px;
    max-height: 90vh;
}

.api-key-description {
    color: var(--placeholder-color);
    font-size: 14px;
    margin-bottom: 20px;
}

.api-key-form {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 20px;
}

.api-key-form input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    background-color: var(--input-background);
    color: var(--text-color);
    font-size: 14px;
    box-sizing: border-box;
}

.api-key-form input:focus {
    outline: none;
    border-color: var(--input-focus-border);
    box-shadow: 0 0 0 3px var(--input-focus-shadow);
}

.api-keys-list {
    margin-bottom: 20px;
}

.api-key-item {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 12px;
    background-color: var(--input-background);
    border: 1px solid var(--border-color);
    border-radius: 5px;
    margin-bottom: 10px;
}

.api-key-item:last-child {
    margin-bottom: 0;
}

.key-info {
    width: 100%;
}

.api-key-item .revoke-btn {
    align-self: flex-start;
    width: auto;
}

.key-info strong {
    color: var(--text-color);
    font-weight: 600;
}

.key-info code {
    background-color: var(--background-color);
    padding: 2px 6px;
    border-radius: 3px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 12px;
    color: var(--text-color);
}

.key-info small {
    color: var(--placeholder-color);
    font-size: 12px;
}

.revoke-btn {
    background-color: #dc3545;
    color: white;
    border: none;
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 12px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.revoke-btn:hover {
    background-color: #c82333;
}

.no-keys {
    text-align: center;
    color: var(--placeholder-color);
    font-style: italic;
    padding: 20px;
}

.setup-instructions {
    margin-top: 20px;
    padding: 20px;
    background-color: var(--input-background);
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.setup-instructions h4 {
    color: var(--text-color);
    margin-bottom: 15px;
    font-weight: 600;
}

.setup-instructions ol {
    margin-left: 20px;
    color: var(--text-color);
}

.setup-instructions ul {
    margin-left: 20px;
    margin-top: 8px;
}

.setup-instructions li {
    margin-bottom: 8px;
}

.setup-instructions code {
    background-color: var(--background-color);
    padding: 2px 6px;
    border-radius: 3px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 13px;
    color: var(--text-color);
}

.config-example {
    margin: 15px 0;
    position: relative;
}

.config-example pre {
    background-color: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: 5px;
    padding: 15px;
    overflow-x: auto;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 12px;
    color: var(--text-color);
    margin-bottom: 10px;
}

.config-example #config_api_key {
    background-color: #ffeb3b;
    color: #000;
    padding: 2px 4px;
    border-radius: 3px;
    font-weight: bold;
}

.copy-btn {
    background-color: var(--button-background);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 4px;
    font-size: 12px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.copy-btn:hover {
    background-color: var(--button-hover);
}

/* Dark theme modal adjustments */
@media (prefers-color-scheme: dark) {
    .modal-overlay {
        background-color: rgba(0, 0, 0, 0.8);
    }
    
    .modal-header h3 {
        color: #ff6b6b;
    }
    
    .upgrade-btn {
        box-shadow: 0 4px 12px rgba(243, 156, 18, 0.2);
    }
    
    .upgrade-btn:hover {
        box-shadow: 0 6px 20px rgba(243, 156, 18, 0.3);
    }
    
    .config-example #config_api_key {
        background-color: #ffc107;
        color: #000;
    }
}