:root {
    --amazon-orange: #ff9900;
    --amazon-blue: #232f3e;
    --amazon-dark: #131921;
    --amazon-light: #f3f3f3;
    --text-color: #333;
}

body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    color: var(--text-color);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    background-color: var(--amazon-dark);
    padding: 10px 0;
    color: #fff;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
}

.logo span {
    margin-left: 10px;
    font-size: 1.2rem;
    font-weight: bold;
}

nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
}

nav li {
    margin-left: 20px;
}

nav a {
    color: #fff;
    text-decoration: none;
    font-size: 0.9rem;
}

.hero {
    background-color: var(--amazon-light);
    padding: 60px 0;
    text-align: center;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 40px;
}

.search-container {
    max-width: 600px;
    margin: 0 auto;
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.drop-zone {
    border: 2px dashed #ccc;
    border-radius: 10px;
    padding: 40px;
    text-align: center;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.drop-zone:hover {
    background-color: #f9f9f9;
    border-color: var(--amazon-orange);
}

.drop-zone__prompt {
    font-size: 1.1rem;
    color: #888;
}

.drop-zone__input {
    display: none;
}

.features {
    padding: 60px 0;
}

.features .container {
    display: flex;
    justify-content: space-around;
}

.feature-card {
    flex: 1;
    text-align: center;
    padding: 20px;
    margin: 0 10px;
    background-color: #fff;
    border: 1px solid #eee;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.feature-card h3 {
    color: var(--amazon-blue);
    margin-bottom: 15px;
}

footer {
    background-color: var(--amazon-blue);
    color: #ccc;
    text-align: center;
    padding: 20px 0;
    font-size: 0.8rem;
}

.loading-spinner {
    padding: 20px;
}

.spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid var(--amazon-orange);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto 10px;
}

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