/* 전역 스타일 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #ffd700;
    --secondary-color: #8b5a3c;
    --dark-bg: #2c1810;
    --medium-bg: #3d2817;
    --light-text: #d4af37;
    --white-text: #fff;
}

body {
    font-family: 'Nanum Gothic', sans-serif;
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--medium-bg) 50%, var(--dark-bg) 100%);
    color: var(--light-text);
    line-height: 1.6;
}

/* 헤더 스타일 */
.site-header {
    background: rgba(40, 25, 15, 0.95);
    border-bottom: 3px solid var(--secondary-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo a {
    font-family: 'Black Han Sans', sans-serif;
    font-size: 2rem;
    color: var(--primary-color);
    text-decoration: none;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
}

.main-nav ul {
    list-style: none;
    display: flex;
    gap: 2rem;
}

.main-nav a {
    color: var(--light-text);
    text-decoration: none;
    font-weight: 700;
    transition: color 0.3s;
}

.main-nav a:hover {
    color: var(--primary-color);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.mobile-menu-toggle span {
    width: 30px;
    height: 3px;
    background: var(--primary-color);
    transition: all 0.3s;
}

/* 푸터 스타일 */
.site-footer {
    background: rgba(20, 12, 8, 0.95);
    border-top: 3px solid var(--secondary-color);
    margin-top: 4rem;
    padding: 3rem 2rem 1rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section a {
    color: var(--light-text);
    text-decoration: none;
    transition: color 0.3s;
    display: block;
    padding: 0.3rem 0;
}

.footer-section a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--secondary-color);
    color: #999;
}

/* 모바일 반응형 */
@media (max-width: 768px) {
    .main-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(40, 25, 15, 0.98);
        padding: 1rem;
    }

    .main-nav.active {
        display: block;
    }

    .main-nav ul {
        flex-direction: column;
        gap: 1rem;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .header-container {
        padding: 1rem;
    }

    .logo a {
        font-size: 1.5rem;
    }

    .footer-container {
        grid-template-columns: 1fr;
    }
}

/* 컨테이너 스타일 */
.page-container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 2rem;
}

/* 버튼 스타일 */
.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    background: var(--primary-color);
    color: var(--dark-bg);
    text-decoration: none;
    font-weight: bold;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s;
    text-align: center;
}

.btn:hover {
    background: #ffed4e;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(255, 215, 0, 0.3);
}

.btn-secondary {
    background: var(--secondary-color);
    color: var(--white-text);
}

.btn-secondary:hover {
    background: #a0826d;
}

/* 폼 스타일 */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
    font-weight: bold;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.8rem;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid var(--secondary-color);
    border-radius: 5px;
    color: var(--white-text);
    font-size: 1rem;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    background: rgba(255, 255, 255, 0.15);
}

/* 카드 스타일 */
.card {
    background: rgba(40, 25, 15, 0.85);
    border: 3px solid var(--secondary-color);
    border-radius: 10px;
    padding: 2rem;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.5);
    margin-bottom: 2rem;
}

.card-title {
    color: var(--primary-color);
    font-size: 1.8rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
}

/* 알림 메시지 */
.alert {
    padding: 1rem;
    border-radius: 5px;
    margin-bottom: 1rem;
}

.alert-success {
    background: rgba(40, 167, 69, 0.2);
    border: 2px solid #28a745;
    color: #7fff7f;
}

.alert-error {
    background: rgba(220, 53, 69, 0.2);
    border: 2px solid #dc3545;
    color: #ffb3ba;
}

.alert-warning {
    background: rgba(255, 193, 7, 0.2);
    border: 2px solid #ffc107;
    color: #ffe99f;
}

/* 로딩 스피너 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 215, 0, 0.3);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}