/* ===========================
   공통 컴포넌트 스타일
   네비게이션 & 푸터
   =========================== */

/* ===========================
   네비게이션 스타일
   =========================== */
.site-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.site-nav.scrolled {
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

/* 브랜드 로고 */
.nav-brand a {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--primary-color);
    font-weight: 700;
    font-size: 1.25rem;
    transition: var(--transition);
}

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

.nav-brand i {
    font-size: 1.5rem;
}

/* 네비게이션 메뉴 */
.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    font-size: 0.95rem;
    border-radius: var(--radius-md);
    transition: var(--transition);
    position: relative;
}

.nav-item:hover {
    background: var(--bg-color);
    color: var(--primary-color);
}

.nav-item.active {
    background: var(--primary-color);
    color: white;
}

.nav-item.active:hover {
    background: var(--primary-dark);
    color: white;
}

.nav-item i {
    font-size: 1rem;
}

/* 햄버거 메뉴 버튼 (모바일) */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 10px;
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.nav-toggle:hover {
    background: var(--bg-color);
}

.hamburger {
    width: 24px;
    height: 2px;
    background: var(--text-color);
    position: relative;
    transition: var(--transition);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background: var(--text-color);
    transition: var(--transition);
}

.hamburger::before {
    top: -7px;
}

.hamburger::after {
    bottom: -7px;
}

/* 햄버거 메뉴 활성화 상태 */
.nav-toggle.active .hamburger {
    background: transparent;
}

.nav-toggle.active .hamburger::before {
    top: 0;
    transform: rotate(45deg);
}

.nav-toggle.active .hamburger::after {
    bottom: 0;
    transform: rotate(-45deg);
}

/* ===========================
   푸터 스타일
   =========================== */
.site-footer {
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    color: white;
    margin-top: 40px;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 40px 20px;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    text-align: center;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.25rem;
    font-weight: 700;
}

.footer-brand i {
    font-size: 1.5rem;
    color: var(--primary-light);
}

.footer-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
}

.footer-nav a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 0.95rem;
    transition: var(--transition);
}

.footer-nav a:hover {
    color: white;
}

.footer-copyright {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
    margin-top: 10px;
}

/* ===========================
   페이지 컨테이너 (네비게이션 고정 고려)
   =========================== */
.page-container {
    padding-top: 90px;
    min-height: calc(100vh - 180px);
}

/* ===========================
   반응형 스타일
   =========================== */

/* 태블릿 */
@media (max-width: 992px) {
    .nav-container {
        height: 60px;
    }
    
    .nav-brand a {
        font-size: 1.1rem;
    }
    
    .nav-item {
        padding: 8px 14px;
        font-size: 0.9rem;
    }
}

/* 모바일 */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 20px;
        gap: 10px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
    }
    
    .nav-menu.open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-item {
        width: 100%;
        padding: 15px 20px;
        justify-content: flex-start;
        border-radius: var(--radius-md);
        font-size: 1rem;
    }
    
    .nav-item.active {
        background: var(--primary-color);
    }
    
    .page-container {
        padding-top: 80px;
    }
    
    .footer-nav {
        flex-direction: column;
        gap: 15px;
    }
}

/* 작은 모바일 */
@media (max-width: 480px) {
    .nav-container {
        padding: 0 15px;
    }
    
    .nav-brand span {
        font-size: 1rem;
    }
    
    .footer-container {
        padding: 30px 15px;
    }
}