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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #fef7ed;
    line-height: 1.6;
}

/* 헤더 */
.header {
    background: white;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.flash-messages {
    background-color: #fff3cd;
    color: #856404;
    border: 1px solid #ffeeba;
    padding: 10px 20px;
    margin: 20px;
    border-radius: 5px;
    font-weight: bold;
    text-align: center;
}

.nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: bold;
    color: #f59e0b;
    text-decoration: none;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-menu a {
    text-decoration: none;
    color: #374151;
    font-weight: 500;
    transition: color 0.2s ease;
}

.nav-menu a:hover {
    color: #f59e0b;
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 15px;
}

.user-avatar {
    width: 40px;
    height: 40px;
    background: #f59e0b;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: white;
}

.logout-btn {
    background: #ef4444;
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.2s ease;
}

.logout-btn:hover {
    background: #dc2626;
}

/* 메인 컨텐츠 */
.main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
}

.welcome-section {
    background: white;
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 20px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.welcome-section h1 {
    font-size: 32px;
    color: #1f2937;
    margin-bottom: 3px;
}

.welcome-section p {
    color: #6b7280;
    font-size: 18px;
    margin-bottom: 30px;
}

.cat-animation {
    font-size: 64px;
    margin: 20px 0;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

/* 카드 그리드 */

.card-link {
    cursor: pointer;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.card {
    display: flex;
    background: white;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    min-height: 280px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    flex-direction: column;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.card-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.card h3 {
    font-size: 20px;
    color: #1f2937;
    margin-bottom: 10px;
}

.card p {
    flex-grow: 1;
    color: #6b7280;
    font-size: 14px;
    margin-bottom: 16px;
}

.card-btn {
    align-self: flex-start;
    background: #f59e0b;
    color: white;
    text-decoration: none;
    border: none;
    padding: 10px 20px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    transition: background-color 0.2s ease;
}

.card-btn:hover {
    background: #d97706;
}

.card p a {
    color: inherit;
    text-decoration: none;
}

.card p a:hover {
    text-decoration: none;
    color: inherit;
}

/* 통계 섹션 */
.stats-section {
    background: white;
    border-radius: 10px;
    padding: 10px;
    margin-bottom: 20px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.stats-section h2 {
    font-size: 24px;
    color: #1f2937;
    margin-bottom: 10px;
    text-align: center;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 20px;
}

.stat-item {
    text-align: center;
    padding: 10px;
    background: #fef7ed;
    border-radius: 6px;
}

.stat-number {
    font-size: 32px;
    font-weight: bold;
    color: #f59e0b;
    margin-bottom: 5px;
}

.stat-label {
    color: #6b7280;
    font-size: 14px;
}

/* 푸터 */
.footer {
    background: white;
    border-top: 1px solid #e5e7eb;
    padding: 40px 0;
    margin-top: 60px;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    text-align: center;
}

.footer-content p {
    color: #6b7280;
    margin-bottom: 10px;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 20px;
}

.footer-links a {
    color: #f59e0b;
    text-decoration: none;
    font-size: 14px;
}

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

/* 반응형 */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .welcome-section {
        padding: 30px 20px;
    }
    
    .welcome-section h1 {
        font-size: 24px;
    }
    
    .cards-grid {
        grid-template-columns: 1fr;
    }
}