:root {
    --bg-color: #f8f9fa;
    --text-color: #212529;
    --card-bg: #ffffff;
    --lotto-bg: #4CAF50;
    --lotto-text: white;
    --button-bg: #007bff;
    --button-text: #fff;
    --input-bg: #fff;
    --input-border: #dee2e6;
    --accent-color: #6c757d;
}

.dark-mode {
    --bg-color: #121212;
    --text-color: #e9ecef;
    --card-bg: #1e1e1e;
    --lotto-bg: #2e7d32;
    --lotto-text: #fff;
    --button-bg: #375a7f;
    --button-text: #fff;
    --input-bg: #2c2c2c;
    --input-border: #444;
}

body {
    font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, Roboto, sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: background-color 0.3s, color 0.3s;
    padding: 60px 20px;
    margin: 0;
}

#theme-toggle {
    position: absolute;
    top: 20px;
    right: 20px;
}

.container {
    width: 100%;
    max-width: 600px;
    background: var(--card-bg);
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    text-align: center;
    margin-bottom: 40px;
}

h1 { margin-bottom: 10px; }
.subtitle { color: var(--accent-color); margin-bottom: 30px; }

.mode-toggle {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 20px;
}

.mode-btn {
    background-color: var(--input-bg);
    color: var(--text-color);
    border: 1px solid var(--input-border);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
}

.mode-btn.active {
    background-color: var(--button-bg);
    color: white;
    border-color: var(--button-bg);
}

/* Upload Area */
.upload-area {
    border: 3px dashed var(--input-border);
    border-radius: 15px;
    padding: 40px;
    cursor: pointer;
    transition: 0.3s;
    margin-bottom: 20px;
    position: relative;
}

.upload-area:hover {
    border-color: var(--button-bg);
    background: rgba(0, 123, 255, 0.05);
}

#face-image {
    max-width: 100%;
    border-radius: 10px;
    display: none;
    margin: 10px auto;
}

/* Webcam Area */
#webcam-container {
    margin: 20px auto;
    border-radius: 15px;
    overflow: hidden;
    width: 200px;
    height: 200px;
    background: #000;
    display: none;
}

#webcam-container canvas {
    border-radius: 15px;
}

/* Results */
.result-container {
    margin-top: 20px;
    min-height: 100px;
}

.result-bar-wrapper {
    margin-bottom: 15px;
}

.label-container {
    display: flex;
    justify-content: space-between;
    margin-bottom: 5px;
    font-weight: bold;
}

.bar-bg {
    background: var(--input-border);
    height: 15px;
    border-radius: 10px;
    overflow: hidden;
}

.bar-fill {
    height: 100%;
    width: 0%;
    transition: width 0.2s ease-out;
}

.dog-bar { background-color: #ffca28; }
.cat-bar { background-color: #42a5f5; }

/* Sections */
.lotto-section, .contact-section, .comments-section {
    width: 100%;
    max-width: 600px;
    margin-top: 40px;
    padding: 20px;
    border-top: 1px solid var(--input-border);
}

#lotto-numbers {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin: 20px 0;
}

.lotto-number {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background-color: var(--lotto-bg);
    color: var(--lotto-text);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: bold;
}

button {
    padding: 12px 24px;
    font-size: 16px;
    cursor: pointer;
    background-color: var(--button-bg);
    color: var(--button-text);
    border: none;
    border-radius: 8px;
    transition: 0.3s;
}

button:hover { opacity: 0.9; transform: translateY(-2px); }

form { display: flex; flex-direction: column; gap: 15px; text-align: left; }
.form-group { display: flex; flex-direction: column; gap: 5px; }
input, textarea {
    padding: 12px;
    border-radius: 8px;
    border: 1px solid var(--input-border);
    background-color: var(--input-bg);
    color: var(--text-color);
}