:root {
    --primary-color: #232f3e;
    --secondary-color: #febd69;
    --text-color: #111;
    --bg-color: #f3f3f3;
    --card-bg: #fff;
    --border-radius: 8px;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--bg-color);
    color: var(--text-color);
}

header {
    background-color: var(--primary-color);
    color: white;
    padding: 1rem 0;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

header h1 {
    margin: 0;
    font-size: 1.5rem;
}

main {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
}

.intro-container {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.intro-section {
    margin-bottom: 2rem;
}

.intro-section:last-child {
    margin-bottom: 0;
}

.intro-section h2 {
    font-size: 1.25rem;
    color: var(--primary-color);
    border-bottom: 2px solid var(--secondary-color);
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
    display: inline-block;
}

.intro-section p {
    line-height: 1.6;
}

.usage-steps {
    padding-left: 1.5rem;
}

.usage-steps li {
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

.search-container {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    text-align: center;
    margin-bottom: 2rem;
}

.search-box {
    display: flex;
    justify-content: center;
    gap: 10px;
    max-width: 800px;
    margin: 0 auto;
    flex-wrap: wrap;
    /* Allow wrapping */
}

select,
input[type="number"] {
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
    background: white;
}

input[type="number"] {
    flex: 1;
    min-width: 150px;
}

select {
    min-width: 120px;
}

button {
    background-color: var(--secondary-color);
    border: none;
    padding: 12px 24px;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
    font-weight: bold;
    transition: background-color 0.2s;
    white-space: nowrap;
}

button:hover {
    background-color: #f2a742;
}

/* Responsive adjustments */
@media (max-width: 600px) {
    header h1 {
        font-size: 1.2rem;
    }

    header p {
        font-size: 0.9rem;
        padding: 0 10px;
    }

    .search-container,
    .intro-container {
        padding: 1rem;
    }

    .search-box {
        flex-direction: column;
        align-items: stretch;
    }

    select,
    input[type="number"],
    button {
        width: 100%;
        margin-bottom: 5px;
    }

    main {
        margin: 1rem auto;
    }

    #results {
        grid-template-columns: repeat(auto-fill, minmax(100%, 1fr));
    }
}

#results {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 1rem;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    transition: transform 0.2s;
}

.card:hover {
    transform: translateY(-5px);
}

.card img {
    width: 100%;
    height: 200px;
    object-fit: contain;
    margin-bottom: 1rem;
}

.card h3 {
    font-size: 1rem;
    margin: 0 0 0.5rem 0;
    line-height: 1.4;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    /* Standard property */
    -webkit-box-orient: vertical;
}

.card .price {
    font-size: 1.25rem;
    font-weight: bold;
    color: #b12704;
    margin-bottom: 0.5rem;
}

.card .org-name {
    font-size: 0.9rem;
    color: #555;
    margin-bottom: 1rem;
    flex-grow: 1;
}

.card .actions {
    margin-top: auto;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.card a {
    display: block;
    text-align: center;
    text-decoration: none;
    padding: 10px;
    border-radius: 4px;
    font-size: 0.9rem;
    font-weight: bold;
}

.btn-amazon {
    background-color: var(--secondary-color);
    color: var(--text-color);
}

.btn-org {
    background-color: transparent;
    border: 1px solid #ddd;
    color: #555;
}

.loading {
    grid-column: 1 / -1;
    text-align: center;
    padding: 2rem;
    font-size: 1.2rem;
    color: #666;
}

.hidden {
    display: none;
}