@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;600&display=swap');

:root {
    --primary-color: #007BFF;
    --secondary-color: #F0F2F5;
    --text-color: #333;
    --light-text-color: #888;
    --border-color: #E0E0E0;
    --white-color: #FFF;
    --error-color: #FF3B30;
    --success-color: #34C759;
}

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

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--secondary-color);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.container {
    display: flex;
    flex-direction: column;
    width: 90vw;
    max-width: 1200px;
    min-width: 800px;
    min-height: 80vh;
    background-color: var(--white-color);
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.left-panel,
.right-panel {
    padding: 40px;
    display: flex;
    flex-direction: column;
}

.left-panel {
    width: 40%;
    border-right: 1px solid var(--border-color);
}

.right-panel {
    width: 60%;
    background-color: #F7F9FC;
    position: relative;
}

.header h1 {
    font-size: 28px;
    font-weight: 600;
}

.header p {
    color: var(--light-text-color);
    margin-top: 5px;
}

.info-section {
    margin-top: 10px;
    padding: 5px;
    background-color: var(--secondary-color);
    border-radius: 10px;
    border: 1px solid var(--border-color);
}

.info-header {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
    font-weight: 600;
    color: var(--primary-color);
}

.info-header i {
    margin-right: 8px;
    font-size: 18px;
}

.info-content {
    font-size: 14px;
    color: var(--text-color);
}

.info-content p {
    margin-bottom: 8px;
    display: flex;
    align-items: flex-start;
}

.info-content i {
    margin-right: 8px;
    margin-top: 3px;
    font-size: 14px;
    color: var(--primary-color);
}

.upload-label {
    margin-top: 20px;
    border: 2px dashed var(--border-color);
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 150px;
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
    text-align: center;
}

.image-display-area {
    width: 100%;
    flex-grow: 1;
    display: flex;
    gap: 20px;
    justify-content: center;
    align-items: center;
}

.image-preview {
    width: calc(50% - 10px);
    height: 100%;
    border-radius: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    transition: all 0.3s;
    overflow: hidden;
}

.upload-label.highlight,
.image-preview.highlight {
    border-color: var(--primary-color);
    background-color: #f0f8ff;
}

.image-preview img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: 8px;
}

.upload-label i {
    font-size: 32px;
    color: var(--primary-color);
}

.upload-label span {
    margin-top: 12px;
    color: var(--light-text-color);
}

.upload-label small {
    margin-top: 10px;
    font-size: 12px;
    opacity: 0.8;
}

.results-section {
    margin-top: 20px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.results-section h2 {
    font-size: 20px;
    margin-bottom: 15px;
}

#results-container {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    overflow-y: auto;
}

.comparison-result {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.panels-wrapper {
    display: flex;
    flex-grow: 1;
}

.meter-label {
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 16px;
}

.meter-container {
    width: 90%;
    height: 20px;
    background-color: var(--secondary-color);
    border-radius: 10px;
    overflow: hidden;
}

.meter-bar {
    height: 100%;
    background-color: var(--success-color);
    border-radius: 10px;
    transition: width 0.5s ease-in-out;
}

.meter-description {
    margin-top: 10px;
    color: var(--light-text-color);
    text-align: center;
}

.graph-container {
    padding: 15px;
    border-radius: 10px;
    background-color: var(--white-color);
    width: 100%;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.graph-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 10px;
    text-align: center;
}

.clear-section {
    width: 100%;
    display: flex;
    justify-content: center;
    margin-top: auto;
    padding-top: 20px;
}

#clear-btn {
    background-color: var(--error-color);
    color: var(--white-color);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: background-color 0.3s;
    padding: 12px 20px;
    width: 100%;
}

#clear-btn:hover {
    background-color: #d93025;
}

#clear-btn i {
    margin-right: 8px;
}

#status-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 30px;
    margin-top: 20px;
}

.spinner {
    border: 3px solid #f3f3f3;
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    width: 20px;
    height: 20px;
    animation: spin 1s linear infinite;
    display: none;
}

#status-text {
    margin-left: 10px;
    color: var(--light-text-color);
}

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

.placeholder {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100%;
    text-align: center;
    color: var(--light-text-color);
}

.placeholder i {
    font-size: 50px;
    color: var(--border-color);
}

.placeholder h2 {
    margin-top: 20px;
    font-size: 20px;
    font-weight: 600;
    color: var(--text-color);
}

.placeholder p {
    margin-top: 10px;
    font-size: 16px;
}

.error {
    color: var(--error-color);
}
#meter-container {
    padding: 10px 0;
    display: flex;
    justify-content: center;
}

.action-buttons {
    text-align: center;
    padding: 15px 0;
}

#show-graph-btn {
    background-color: var(--primary-color);
    color: var(--white-color);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 15px;
    padding: 10px 20px;
    transition: background-color 0.3s;
}

#show-graph-btn:hover {
    background-color: #0056b3;
}

.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.3s;
}

.modal-content {
    background-color: #fefefe;
    margin: 5% auto;
    padding: 20px;
    border: 1px solid #888;
    width: 80%;
    max-width: 900px;
    border-radius: 10px;
    position: relative;
}

.close-button {
    color: #aaa;
    position: absolute;
    top: 10px;
    right: 20px;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

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

.back-link-section {
    position: absolute;
    top: 20px;
    right: 40px;
}

.back-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--primary-color);
    font-weight: 600;
    font-size: 15px;
    transition: color 0.3s;
}

.back-link:hover {
    color: #0056b3;
}

.back-link i {
    margin-right: 8px;
}