:root {
    --bg-color: #f8f9fa;
    --container-bg: #ffffff;
    --text-color: #333333;
    --number-bg: #e9ecef;
    --btn-bg: #4CAF50;
    --btn-hover: #45a049;
    --shadow-color: rgba(0, 0, 0, 0.08);
    --accent-color: #ff6b6b;
}

body.dark-mode {
    --bg-color: #121212;
    --container-bg: #1e1e1e;
    --text-color: #e0e0e0;
    --number-bg: #2d2d2d;
    --btn-bg: #388e3c;
    --btn-hover: #2e7d32;
    --shadow-color: rgba(0, 0, 0, 0.4);
    --accent-color: #ff5252;
}

body {
    font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, Roboto, 'Helvetica Neue', 'Segoe UI', 'Apple SD Gothic Neo', 'Noto Sans KR', 'Malgun Gothic', sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    transition: background-color 0.3s, color 0.3s;
}

.container {
    position: relative;
    text-align: center;
    padding: 3rem 2rem;
    background-color: var(--container-bg);
    border-radius: 24px;
    box-shadow: 0 10px 40px var(--shadow-color);
    width: 90%;
    max-width: 500px;
    transition: background-color 0.3s, box-shadow 0.3s;
    margin: 2rem 0;
}

header h1 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
    color: var(--accent-color);
}

.subtitle {
    font-size: 1rem;
    color: var(--text-color);
    opacity: 0.8;
    margin-bottom: 2rem;
}

.theme-toggle {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-color);
    transition: transform 0.3s ease;
}

/* Sections */
.upload-area {
    border: 3px dashed var(--number-bg);
    border-radius: 16px;
    padding: 3rem 1rem;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 200px;
    justify-content: center;
}

.upload-area:hover {
    border-color: var(--accent-color);
    background-color: var(--number-bg);
}

/* Result Area */
.preview-container {
    width: 100%;
    max-width: 300px;
    margin: 0 auto 1.5rem;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 15px var(--shadow-color);
    background-color: #000;
}

#face-image {
    width: 100% !important;
    height: auto !important;
    display: block;
}

.label-container {
    margin: 2rem 0;
    text-align: left;
}

.bar-container {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
    gap: 10px;
}

.bar-label {
    width: 80px;
    font-weight: 600;
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.progress-wrapper {
    flex-grow: 1;
    height: 12px;
    background-color: var(--number-bg);
    border-radius: 6px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    border-radius: 6px;
    transition: width 0.3s ease-out;
    background-color: var(--accent-color);
}

/* Dynamic Colors (based on common names) */
.dog-bar { background-color: #ffcc33; }
.cat-bar { background-color: #ff6699; }
.rabbit-bar { background-color: #a29bfe; }
.fox-bar { background-color: #e17055; }
.bear-bar { background-color: #636e72; }
.dinosaur-bar { background-color: #00b894; }

.percent {
    width: 45px;
    font-size: 0.85rem;
    text-align: right;
    font-weight: bold;
}

.retry-btn {
    padding: 0.8rem 2rem;
    background-color: var(--accent-color);
    color: white;
    border: none;
    border-radius: 30px;
    cursor: pointer;
    font-weight: 600;
}

/* Common Section */
.partnership-section {
    margin-top: 3rem;
    text-align: left;
}

hr {
    border: none;
    border-top: 1px solid var(--number-bg);
    margin: 2rem 0;
}

.partnership-section h2 {
    text-align: center;
    margin-bottom: 1.5rem;
    font-size: 1.4rem;
}

.form-group {
    margin-bottom: 1.2rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    font-size: 0.9rem;
}

.form-group input, 
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid var(--number-bg);
    border-radius: 12px;
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: inherit;
    box-sizing: border-box;
}

#submit-btn {
    width: 100%;
    padding: 1rem;
    background-color: var(--btn-bg);
    color: white;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}