:root {
    --primary-color: #6c5ce7;
    --primary-dark: #5649c0;
    --secondary-color: #00cec9;
    --text-color: #2d3436;
    --text-light: #636e72;
    --bg-color: #f5f6fa;
    --card-color: #ffffff;
    --border-color: #dfe6e9;
    --success-color: #00b894;
    --danger-color: #d63031;
    --warning-color: #fdcb6e;
    --info-color: #0984e3;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

[data-theme="dark"] {
    --primary-color: #6c5ce7;
    --primary-dark: #5649c0;
    --secondary-color: #00cec9;
    --text-color: #f5f6fa;
    --text-light: #b2bec3;
    --bg-color: #2d3436;
    --card-color: #1e272e;
    --border-color: #34495e;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: var(--transition);
}

.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    max-width: 1200px;
    margin: 0 auto;
}

.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    background-color: var(--card-color);
    box-shadow: var(--shadow);
    z-index: 10;
}

.logo-container h1 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo-container span {
    color: var(--secondary-color);
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.icon-btn {
    background: none;
    border: none;
    font-size: 1.2rem;
    color: var(--text-light);
    cursor: pointer;
    transition: var(--transition);
    padding: 0.5rem;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-btn:hover {
    background-color: rgba(108, 92, 231, 0.1);
    color: var(--primary-color);
}

.user-info {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

#user-identifier {
    font-size: 0.9rem;
    font-weight: 500;
}

.usage-meter {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    width: 120px;
}

.usage-bar {
    height: 6px;
    background-color: var(--border-color);
    border-radius: 3px;
    flex-grow: 1;
    overflow: hidden;
}

.usage-bar::after {
    content: '';
    display: block;
    height: 100%;
    width: 0%;
    background-color: var(--primary-color);
    border-radius: 3px;
    transition: var(--transition);
}

#usage-text {
    font-size: 0.8rem;
    color: var(--text-light);
}

.chat-container {
    display: flex;
    flex: 1;
    overflow: hidden;
}

.chat-area {
    display: flex;
    flex-direction: column;
    flex: 1;
    background-color: var(--bg-color);
}

.messages {
    flex: 1;
    padding: 1.5rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.message {
    max-width: 80%;
    align-self: flex-start;
}

.message.welcome-message {
    align-self: center;
    text-align: center;
    max-width: 600px;
    padding: 1.5rem;
    background-color: var(--card-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.message-content {
    padding: 1rem 1.5rem;
    background-color: var(--card-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    line-height: 1.6;
}

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

.input-tools {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.tool-btn {
    background: none;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    font-size: 1.1rem;
    padding: 0.5rem;
    border-radius: 50%;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.tool-btn:hover {
    background-color: rgba(108, 92, 231, 0.1);
    color: var(--primary-color);
}

#file-upload {
    display: none;
}

.text-input-container {
    display: flex;
    gap: 0.5rem;
    align-items: flex-end;
}

#user-input {
    flex: 1;
    min-height: 50px;
    max-height: 150px;
    padding: 0.8rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    resize: none;
    background-color: var(--card-color);
    color: var(--text-color);
    font-size: 1rem;
    line-height: 1.5;
    transition: var(--transition);
}

#user-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(108, 92, 231, 0.2);
}

.send-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.send-btn:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
}

/* Modal Styles */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
}

.modal.active {
    opacity: 1;
    pointer-events: all;
}

.modal-content {
    background-color: var(--card-color);
    border-radius: var(--border-radius);
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow);
    transform: translateY(20px);
    transition: var(--transition);
}

.modal.active .modal-content {
    transform: translateY(0);
}

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

.modal-header h2 {
    font-size: 1.5rem;
    color: var(--text-color);
}

.close-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-light);
    cursor: pointer;
    transition: var(--transition);
}

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

.modal-body {
    padding: 1.5rem;
}

/* Settings Modal */
.setting-category {
    margin-bottom: 2rem;
}

.setting-category h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
    font-size: 1.1rem;
}

.setting-item {
    margin-bottom: 1.2rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.setting-item label {
    font-size: 0.9rem;
    color: var(--text-light);
    font-weight: 500;
}

.styled-select {
    position: relative;
    width: 100%;
}

.styled-select select {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background-color: var(--card-color);
    color: var(--text-color);
    font-size: 1rem;
    appearance: none;
    cursor: pointer;
    transition: var(--transition);
}

.styled-select select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(108, 92, 231, 0.2);
}

.select-arrow {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    color: var(--text-light);
}

.slider-container {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.slider-container input[type="range"] {
    flex: 1;
    height: 6px;
    -webkit-appearance: none;
    background: var(--border-color);
    border-radius: 3px;
    outline: none;
}

.slider-container input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    background: var(--primary-color);
    border-radius: 50%;
    cursor: pointer;
}

#font-size-value {
    font-size: 0.9rem;
    color: var(--text-light);
    min-width: 40px;
    text-align: right;
}

.switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 24px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border-color);
    transition: var(--transition);
    border-radius: 24px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: var(--transition);
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--primary-color);
}

input:checked + .slider:before {
    transform: translateX(26px);
}

.setting-actions {
    margin-top: 2rem;
    display: flex;
    justify-content: flex-end;
}

.danger-btn {
    background-color: var(--danger-color);
    color: white;
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.danger-btn:hover {
    background-color: #c0392b;
}

/* Support Modal */
.support-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background-color: rgba(108, 92, 231, 0.1);
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    transition: var(--transition);
}

.support-card:hover {
    background-color: rgba(108, 92, 231, 0.2);
}

.support-icon {
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.support-info h4 {
    font-size: 1rem;
    margin-bottom: 0.2rem;
    color: var(--primary-color);
}

.support-info p {
    font-size: 0.9rem;
    color: var(--text-light);
}

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

.faq-section h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.faq-item {
    margin-bottom: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: 1rem;
    background-color: var(--card-color);
    border: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-size: 1rem;
    color: var(--text-color);
    transition: var(--transition);
}

.faq-question:hover {
    background-color: rgba(108, 92, 231, 0.1);
}

.faq-answer {
    padding: 0 1rem;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    background-color: var(--bg-color);
}

.faq-answer p {
    padding: 1rem 0;
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--text-light);
}

.faq-item.active .faq-answer {
    max-height: 200px;
}

/* Image Generation Modal */
.prompt-container {
    position: relative;
    margin-bottom: 1.5rem;
}

#image-prompt {
    width: 100%;
    min-height: 120px;
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    resize: none;
    background-color: var(--card-color);
    color: var(--text-color);
    font-size: 1rem;
    line-height: 1.5;
    transition: var(--transition);
}

#image-prompt:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(108, 92, 231, 0.2);
}

.prompt-counter {
    position: absolute;
    bottom: 0.5rem;
    right: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-light);
    background-color: var(--card-color);
    padding: 0.2rem 0.5rem;
    border-radius: 10px;
}

.image-options-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.option-card {
    padding: 1rem;
    background-color: var(--card-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.option-card h4 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.8rem;
    font-size: 0.9rem;
    color: var(--text-light);
}

.generate-btn {
    width: 100%;
    padding: 1rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: var(--transition);
    margin-bottom: 1.5rem;
}

.generate-btn:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
}

.image-preview-container {
    width: 100%;
    border-radius: var(--border-radius);
    overflow: hidden;
    background-color: var(--card-color);
    box-shadow: var(--shadow);
}

.image-preview {
    width: 100%;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-color);
}

.image-preview .placeholder {
    text-align: center;
    color: var(--text-light);
}

.image-preview .placeholder i {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--border-color);
}

.image-preview img {
    max-width: 100%;
    max-height: 400px;
    object-fit: contain;
}

/* Responsive Design */
@media (max-width: 768px) {
    .app-header {
        padding: 1rem;
    }

    .logo-container h1 {
        font-size: 1.5rem;
    }

    .header-controls {
        gap: 1rem;
    }

    .messages {
        padding: 1rem;
    }

    .message {
        max-width: 90%;
    }

    .input-area {
        padding: 1rem;
    }

    .modal-content {
        width: 95%;
    }

    .image-options-grid {
        grid-template-columns: 1fr;
    }
}

/* Styling untuk modal ganti nama */
.user-info {
    position: relative;
    display: flex;
    flex-direction: column;
}

#edit-username-btn {
    position: absolute;
    right: 0;
    top: 0;
    background: none;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    padding: 2px;
}

#edit-username-btn:hover {
    color: var(--primary-color);
}

#username-input {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    font-size: 1rem;
}

.username-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.icon-btn.small {
    width: 24px;
    height: 24px;
    font-size: 0.8rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-light);
}

/* Style dasar untuk tombol Simpan */
#save-username-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

/* Hover state */
#save-username-btn:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

/* Active state */
#save-username-btn:active {
    background-color: var(--primary-dark);
    transform: translateY(0);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* Focus state */
#save-username-btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.3);
}

/* Disabled state */
#save-username-btn:disabled {
    background-color: #cccccc;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Icon di dalam tombol */
#save-username-btn i {
    font-size: 0.9em;
}

/* Animasi loading */
#save-username-btn.loading {
    position: relative;
    color: transparent;
}

#save-username-btn.loading::after {
    content: "";
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid white;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 0.8s linear infinite;
}

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