/* Variables */
:root {
    --nepro-orange: #F59E0B;
    --nepro-dark-bg: #1a202c;
    --nepro-card-bg: #2d3748;
    --nepro-text-light: #f7fafc;
    --nepro-border-color: #4a5568;
    --nepro-high-competition: #EF4444;
    --nepro-medium-competition: #F59E0B;
    --nepro-low-competition: #10B981;
}

/* Card Styles */
.nepro-card-wrapper {
    max-width: 800px;
    margin: 2rem auto;
}

.nepro-card {
    background-color: var(--nepro-card-bg);
    color: var(--nepro-text-light);
    border-radius: 0.5rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    overflow: hidden;
}

.nepro-card-dark {
    background-color: var(--nepro-dark-bg);
}

.nepro-card-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--nepro-border-color);
}

.nepro-card-header h2 {
    margin: 0;
    font-size: 1.5rem;
    color: var(--nepro-orange);
}

.nepro-card-header p {
    margin: 0.5rem 0 0;
    color: var(--nepro-text-light);
    opacity: 0.8;
}

.nepro-card-body {
    padding: 1.5rem;
}

/* Search Form */
.apct-search-form {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

#apct-asin-input {
    flex-grow: 1;
    padding: 0.75rem 1rem;
    border: 1px solid var(--nepro-border-color);
    border-radius: 0.375rem;
    background-color: var(--nepro-card-bg);
    color: var(--nepro-text-light);
    font-size: 1rem;
}

#apct-asin-input:focus {
    outline: none;
    border-color: var(--nepro-orange);
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.3);
}

/* Button Styles */
.nepro-btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.375rem;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.2s ease-in-out;
}

.nepro-btn-orange {
    background-color: var(--nepro-orange);
    color: var(--nepro-dark-bg);
}

.nepro-btn-orange:hover {
    background-color: #d97706;
}

.nepro-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Spinner */
.nepro-spinner {
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top: 4px solid var(--nepro-orange);
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 2rem auto;
}

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

/* Results */
#apct-results {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.apct-result-card {
    background-color: var(--nepro-card-bg);
    border-radius: 0.5rem;
    padding: 1.5rem;
    border-left: 5px solid var(--nepro-border-color);
}

.apct-result-card.high-competition { border-left-color: var(--nepro-high-competition); }
.apct-result-card.medium-competition { border-left-color: var(--nepro-medium-competition); }
.apct-result-card.low-competition { border-left-color: var(--nepro-low-competition); }

.apct-result-card h3 {
    margin: 0 0 1rem;
    font-size: 1.25rem;
}

.apct-result-card h3 a {
    color: var(--nepro-orange);
    text-decoration: none;
}

.apct-result-card p {
    margin: 0.5rem 0;
}

/* Responsive Grid */
@media (max-width: 640px) {
    #apct-results {
        grid-template-columns: 1fr;
    }
}

/* CSV Export Button */
#apct-export-csv {
    margin-top: 1.5rem;
}