* {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box
}

:after, :before {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box
}

html {
    height: 100%;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
}

body {
    height: 100%;
    background: #f3f3f3;
    color: #555;
    font-size: 16px;
}

body, div, dl, dt, dd, ul, ol, menu, li, h1, h2, h3, h4, h5, h6, pre, form, fieldset, input, textarea, blockquote, th, td, p {
    margin: 0;
    padding: 0;
}

table {
    border-collapse: collapse;
    border-spacing: 0;
}

fieldset, img, abbr, acronym {
    margin: 0;
    border: 0;
    _vertical-align: top;
}

address, caption, cite, code, dfn, em, var {
    font-style: normal;
    font-weight: normal;
}

ol, ul, menu {
    list-style: none;
}

legend {
    border: 0 none;
    *margin-left: -7px
}

q:before, q:after {
    content: '';
}

a {
    color: inherit;
    text-decoration: none;
}

a:hover {
    text-decoration: none;
}

hr {
    display: none;
}

em {
    color: inherit;
    font-weight: normal;
    font-style: normal;
}

img {
    line-height: 0;
}


/* 로딩 스피너 스타일 */
.loading-spinner {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #f8f9fa;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

/* 반응형 스타일 */
@media (max-width: 768px) {
    .nav-content {
        padding: 1rem;
        flex-direction: column;
        gap: 1rem;
    }

    .nav-links {
        width: 100%;
        justify-content: space-around;
    }
}