:root {
    --primary-color: #6a11cb;
    --secondary-color: #2575fc;
    --background-color: #f0f2f5;
    --card-background-color: #ffffff;
    --text-color: #333;
    --subtle-text-color: #8d8d8d;
    --button-text-color: #ffffff;
    --border-color: #e0e0e0;
}

body, html {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
}

#app {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

header {
    padding: 2rem 0;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

header h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin: 0;
}

main {
    padding: 2rem 0;
}

.card-section {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.card {
    background-color: var(--card-background-color);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 8px 32px rgba(0,0,0,0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.12);
}

.card h2 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-top: 0;
    display: flex;
    align-items: center;
}

.card h2 i {
    margin-right: 0.75rem;
}

.card p {
    color: var(--subtle-text-color);
}

#image-uploader .upload-area {
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.3s ease, background-color 0.3s ease;
}

#image-uploader .upload-area:hover {
    border-color: var(--primary-color);
    background-color: #fafafa;
}

#image-uploader .upload-area .icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.image-preview {
    width: 100%;
    margin-top: 1.5rem;
    border-radius: 8px;
    overflow: hidden;
    display: none;
}

.image-preview.active {
    display: flex;
    justify-content: center;
    align-items: center;
}

.image-preview img {
    max-width: 100%;
    max-height: 400px;
    object-fit: contain;
}

#analyze-button, #reset-button {
    width: 100%;
    padding: 1rem;
    font-size: 1rem;
    font-weight: bold;
    color: var(--button-text-color);
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border: none;
    border-radius: 8px;
    cursor: pointer;
    margin-top: 1.5rem;
    transition: transform 0.2s ease;
}

#analyze-button:hover, #reset-button:hover {
    transform: scale(1.02);
}

#result-section {
    text-align: center;
}

#result-season {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-color);
}

#result-palette {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-top: 1.5rem;
    margin-bottom: 2rem;
}

.color-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.color-box {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border: 3px solid #fff;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    margin-bottom: 0.5rem;
}

.color-name {
    font-size: 0.8rem;
    color: var(--subtle-text-color);
    font-weight: 500;
}

#seasonal-descriptions {
    margin-top: 2rem;
    border-top: 1px solid var(--border-color);
    padding-top: 2rem;
}

.season-description {
    margin-bottom: 2rem;
}

.season-description h3 {
    font-size: 1.25rem;
    color: var(--text-color);
    margin-bottom: 1rem;
}

.palette {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.color-chip {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    border: 2px solid #fff;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}

.hidden {
    display: none;
}

footer {
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid var(--border-color);
    color: var(--subtle-text-color);
}