/* 푸터 스타일 */
.footer {
    margin-top: 3rem;
    padding: 2rem;
    text-align: center;
    font-size: 0.8rem;
    opacity: 0.7;
    border-top: 1px solid var(--shadow-color);
    width: 100%;
}

.footer-links {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: var(--text-color);
    text-decoration: none;
    margin: 0 5px;
}

.footer-links a:hover {
    text-decoration: underline;
}

article {
    width: 100%;
}

.info-content {
    background-color: var(--bg-color);
    padding: 1.5rem;
    border-radius: 0.8rem;
    border-left: 4px solid var(--button-bg);
}

.info-content h3 {
    margin-top: 0;
    color: var(--button-bg);
}

.info-content ul {
    padding-left: 1.2rem;
}

:root {
    --bg-color: #f0f2f5;
    --container-bg: #fff;
    --text-color: #333;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --button-bg: #008CBA;
    --button-hover: #005f7a;
    --number-bg: #4CAF50;
    --number-text: white;
    --input-border: #ccc;
    --progress-bg: #e0e0e0;
}

[data-theme='dark'] {
    --bg-color: #1a1a1a;
    --container-bg: #2d2d2d;
    --text-color: #f0f2f5;
    --shadow-color: rgba(0, 0, 0, 0.5);
    --button-bg: #3498db;
    --button-hover: #2980b9;
    --number-bg: #27ae60;
    --input-border: #444;
    --progress-bg: #444;
}

body {
    font-family: 'Arial', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    display: flex;
    flex-direction: column; /* 푸터 배치를 위해 변경 */
    align-items: center;
    min-height: 100vh;
    margin: 0;
    transition: background-color 0.3s, color 0.3s;
    padding: 5rem 0 0 0; 
}

.container {
    background-color: var(--container-bg);
    padding: 2.5rem;
    border-radius: 1rem;
    box-shadow: 0 4px 15px var(--shadow-color);
    text-align: center;
    transition: background-color 0.3s, box-shadow 0.3s;
    width: 90%;
    max-width: 600px; /* 약간 넓게 조정 */
    margin-bottom: 2rem;
}

h1 {
    color: var(--text-color);
    margin: 1.5rem 0;
    font-size: 1.8rem;
}

/* 상단 고정 헤더 영역 */
.header-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    display: flex;
    align-items: center;
    padding: 0.8rem 1.5rem;
    gap: 1.5rem;
    z-index: 1000;
    background-color: var(--container-bg);
    box-shadow: 0 2px 10px var(--shadow-color);
    box-sizing: border-box;
}

.theme-toggle {
    padding: 0.6rem 1.2rem;
    cursor: pointer;
    background-color: var(--bg-color);
    color: var(--text-color);
    border: 1px solid var(--input-border);
    border-radius: 0.5rem;
    transition: background-color 0.3s, color 0.3s;
    white-space: nowrap;
    font-size: 0.85rem;
    font-weight: bold;
}

.navbar {
    display: flex;
    gap: 10px;
    margin-bottom: 0;
    padding: 0;
    background-color: transparent;
    box-shadow: none;
}

.navbar a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: bold;
    padding: 8px 16px;
    border-radius: 0.4rem;
    transition: background-color 0.3s, color 0.3s;
    font-size: 0.9rem;
    white-space: nowrap;
}

.navbar a:hover {
    background-color: var(--container-bg);
}

.navbar a.active {
    background-color: var(--button-bg);
    color: white;
}

.container {
    background-color: var(--container-bg);
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 4px 8px var(--shadow-color);
    text-align: center;
    transition: background-color 0.3s, box-shadow 0.3s;
    width: 90%;
    max-width: 500px;
}

h1 {
    color: var(--text-color);
    margin: 1.5rem 0;
    font-size: 1.5rem;
}

/* Animal Test Section */
.animal-test-section {
    margin-bottom: 2rem;
}

.upload-container {
    margin: 1rem 0;
}

.file-input {
    display: none;
}

.upload-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 2rem;
    border: 2px dashed var(--input-border);
    border-radius: 1rem;
    cursor: pointer;
    transition: background-color 0.3s;
}

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

.upload-icon {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

.preview-container {
    margin: 1.5rem auto;
    width: 200px;
    height: 200px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 5px var(--shadow-color);
}

#face-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.label-container {
    margin: 1.5rem 0;
}

.label-wrapper {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    font-size: 1rem;
}

.label-wrapper span:first-child {
    width: 70px;
    text-align: left;
    font-weight: bold;
}

.label-wrapper span:last-child {
    width: 45px;
    text-align: right;
}

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

.progress {
    height: 100%;
    background-color: var(--button-bg);
    transition: width 0.5s ease;
}

.info-text {
    font-size: 0.85rem;
    opacity: 0.7;
    margin-top: 1rem;
}

/* Lotto Section */
.numbers-container {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--number-bg);
    color: var(--number-text);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.1rem;
    font-weight: bold;
}

/* Common Elements */
.generate-button {
    background-color: var(--button-bg);
    color: white;
    padding: 0.8rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.3s;
    margin-bottom: 0.5rem;
}

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

/* Contact & Comments */
.contact-section, .comments-section {
    margin-top: 2rem;
}

hr {
    border: none;
    border-top: 1px solid var(--shadow-color);
    margin: 1.5rem 0;
}

.contact-form {
    text-align: left;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.3rem;
    font-weight: bold;
    font-size: 0.9rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.6rem;
    border: 1px solid var(--input-border);
    border-radius: 0.4rem;
    background-color: var(--container-bg);
    color: var(--text-color);
    box-sizing: border-box;
}

.form-group textarea {
    height: 80px;
    resize: vertical;
}

.submit-button {
    width: 100%;
    background-color: var(--number-bg);
    color: white;
    padding: 0.8rem;
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.3s;
}

.submit-button:hover {
    filter: brightness(0.9);
}