* {
    margin: 0;
    padding: 0;
    font-family: "Poppins", sans-serif;
    box-sizing: border-box;
}

body {
    background: url("/static/images/brain_background.jpg") no-repeat center center fixed;
    background-size: cover;
    min-height: 100vh;
    position: relative;
}

.detection-section {
    padding: 2rem 0;
    min-height: calc(100vh - 140px);
}

.detection-wrapper {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.upload-section {
    flex: 0 1 500px;
}

.results-section {
    flex: 0 1 400px;
}

.upload-container {
    background: rgba(255, 255, 255, 0.9);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(5px);
}

.preview-container {
    margin: 1rem 0;
    text-align: center;
}

.preview-image {
    max-width: 250px;
    max-height: 250px;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.results-container {
    background: rgba(255, 255, 255, 0.9);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(5px);
}

.upload-icon {
    width: 64px;
    height: 64px;
    margin-bottom: 1rem;
}

.upload-box {
    border: 2px dashed #1a73e8;
    padding: 2rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.8);
}

.upload-box:hover {
    border-color: #1557b0;
    background: rgba(255, 255, 255, 0.9);
}

.result-cards {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.result-card {
    background: rgba(255, 255, 255, 0.95);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    text-align: center;
    width: 100%;
}

header {
    background: rgba(0, 0, 0, 0.8);
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

footer {
    background: rgba(217, 213, 213, 0.8);
    padding: 1rem 0;
    position: fixed;
    bottom: 0;
    width: 100%;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.3);
}

.predict-btn {
    background: #4683d3;
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: 5px;
    cursor: pointer;
    transition: background 0.3s ease;
    font-weight: 500;
    margin-top: 1rem;
}

.predict-btn:hover {
    background: #124e9e;
}

.predict-btn:disabled {
    background: #cccccc;
    cursor: not-allowed;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .detection-wrapper {
        flex-direction: column;
        align-items: center;
    }

    .upload-section,
    .results-section {
        width: 100%;
        max-width: 500px;
    }
}

/* Loading overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    color: white;
}

.spinner {
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid #1a73e8;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
}

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