:root {
    --primary-color: #007BFF; /* 강조/링크 색상 */
    --button-bg: #FF69B4; /* 버튼 배경색 */
    --button-hover-bg: #E04E9A; /* 버튼 호버 배경색 */
    --background-color: #F0F8FF; /* 전체 배경색 */
    --text-color: #333;
    --card-bg: #FFFFFF;
    --card-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    --border-radius: 12px;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    margin: 0;
    padding: 20px;
    -webkit-tap-highlight-color: transparent;
}

body.dark-mode {
    --background-color: #1a1a1a;
    --text-color: #f0f0f0;
    --card-bg: #2a2a2a;
    --card-shadow: 0 4px 15px rgba(255, 255, 255, 0.1);
}

.dark-mode-toggle {
    position: fixed;
    top: 15px;
    right: 15px;
    background: none;
    border: none;
    font-size: 1.8rem;
    cursor: pointer;
    z-index: 1000;
}

.disclaimer {
    background-color: #fff3cd;
    color: #856404;
    padding: 10px;
    text-align: center;
    font-size: 0.8rem;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
}

.app-header {
    text-align: center;
    margin-bottom: 30px;
}

.app-header h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin: 0;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.1);
}

.app-header h2 {
    font-size: 1.5rem;
    color: var(--button-bg);
    margin: 5px 0 0;
}

.container {
    max-width: 900px;
    margin: 0 auto;
}

.card {
    background-color: var(--card-bg);
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
    margin-bottom: 25px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.form-group {
    margin-bottom: 20px;
    text-align: left;
}

.form-group label {
    display: block;
    font-weight: bold;
    margin-bottom: 8px;
}

.form-group select,
.form-group input[type="radio"] {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 8px;
    font-size: 1rem;
}

.radio-group {
    display: flex;
    justify-content: space-around;
}
.radio-group label {
    display: flex;
    align-items: center;
    cursor: pointer;
}
input[type="radio"] {
   width: auto !important;
   margin-right: 10px;
}

.button {
    background-color: var(--button-bg);
    color: white;
    padding: 15px 25px;
    border: none;
    border-radius: 8px;
    font-size: 1.2rem;
    font-weight: bold;
    cursor: pointer;
    width: 100%;
    transition: background-color 0.3s ease;
}

.button:hover {
    background-color: var(--button-hover-bg);
}

/* Tournament Styles */
.tournament-container .matchup {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
}

.celeb-card, .option-card {
    width: 45%;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.celeb-card:hover, .option-card:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.celeb-card img {
    width: 100%;
    height: auto;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    border-radius: var(--border-radius);
}

.vs-circle {
    background-color: var(--primary-color);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: bold;
    font-size: 1.5rem;
}

.feedback {
    margin-top: 20px;
    font-size: 1.2rem;
    color: var(--primary-color);
    font-weight: bold;
    height: 20px;
}

/* Personality Selection */
.options-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-bottom: 25px;
}

.personality-option {
    background-color: var(--card-bg);
    padding: 15px;
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: 500;
}

.personality-option:hover {
    transform: translateY(-3px);
}

.personality-option.selected {
    background-color: var(--button-bg);
    color: white;
    box-shadow: 0 4px 15px var(--button-hover-bg);
}

/* Result Page */
.result-card img {
    max-width: 250px;
    border-radius: 50%;
    margin-bottom: 20px;
    border: 5px solid var(--button-bg);
}

.result-card h2 {
    font-size: 2rem;
    margin-bottom: 10px;
}

.traits-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin: 20px 0;
}

.trait-tag {
    background-color: #e0e0e0;
    color: #333;
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
}

.match-description {
    margin-top: 20px;
    font-style: italic;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.product-card {
    padding: 20px;
}

.product-card p {
    font-size: 1.1rem;
    margin-bottom: 15px;
}


@media (max-width: 600px) {
    body { padding: 10px; }
    .app-header h1 { font-size: 2rem; }
    .app-header h2 { font-size: 1.2rem; }
    .vs-circle { display: none; }
    .tournament-container .matchup { flex-direction: column; }
    .celeb-card, .option-card { width: 90%; margin-bottom: 15px;}
}

/* Ads placeholder style */
.ads-container {
    margin: 20px 0;
    text-align: center;
}