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<a class="block px-4 py-2 text-sm text-gray-700 hover:bg-gray-100" href="problemsetsol.php">문제집</a>
<a class="block px-4 py-2 text-sm text-gray-700 hover:bg-gray-100" href="recentprob.php">최근 100문제</a>
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수업
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<div class="dropdown-menu hidden absolute left-0 top-full w-48 bg-white rounded-md shadow-lg z-50 border border-gray-200">
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<a class="px-2 py-2 text-sm text-gray-700 hover:text-primary hover:bg-gray-100 rounded-md transition flex items-center whitespace-nowrap" href="status.php">채점상황</a>
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<a class="block px-4 py-2 text-sm text-gray-700 hover:bg-gray-100" href="ranklist.php">전체 순위</a>
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<a class="block px-4 py-2 text-sm text-gray-700 hover:bg-gray-100" href="ranklist_g.php">그룹별 순위</a> -->
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<a class="px-2 py-2 text-sm text-gray-700 hover:text-primary hover:bg-gray-100 rounded-md transition flex items-center whitespace-nowrap" href="contest.php"><span class='badge badge-pill badge-danger'>10</span><span class=red> 이벤트</span></a>
</li>
<li class="relative header-dropdown">
<button class="px-2 py-2 text-sm text-gray-700 hover:text-primary hover:bg-gray-100 rounded-md transition flex items-center whitespace-nowrap">
도구
<svg class="ml-1 h-4 w-4" fill="none" viewBox="0 0 24 24" stroke="currentColor">
<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 9l-7 7-7-7" />
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<a class="block px-4 py-2 text-sm text-gray-700 hover:bg-gray-100" href="coderain.php">코드 게임</a>
<a class="block px-4 py-2 text-sm text-gray-700 hover:bg-gray-100" href="tools/memo.html">아이디어 연습장</a>
<a class="block px-4 py-2 text-sm text-gray-700 hover:bg-gray-100" href="random.php">랜덤 번호 뽑기</a>
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FAQ
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<a class="block px-4 py-2 text-sm text-gray-700 hover:bg-gray-100" href="faqs.ko.php">FAQ</a>
<a class="block px-4 py-2 text-sm text-gray-700 hover:bg-gray-100" href="edufaq.php">교사 권한 FAQ</a>
<a class="block px-4 py-2 text-sm text-gray-700 hover:bg-gray-100" href="history.php">코드업 역사</a>
<a class="block px-4 py-2 text-sm text-gray-700 hover:bg-gray-100" href="info.php">코드업 통계</a>
<a class="block px-4 py-2 text-sm text-gray-700 hover:bg-gray-100" href="book.php">도서 안내</a>
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</li>
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<div class="hidden md:flex md:items-center md:space-x-1">
<a class="px-2 py-2 text-sm text-gray-700 hover:text-primary hover:bg-gray-100 rounded-md transition flex items-center whitespace-nowrap" href="registerpage.php">
<i class="fas fa-user-plus mr-1"></i>가입하기
</a>
<a class="px-2 py-2 text-sm bg-primary text-white hover:bg-blue-700 rounded-md transition flex items-center whitespace-nowrap" href="loginpage.php">
<i class="fas fa-sign-in-alt mr-1"></i>로그인
</a>
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<div class="px-2 pt-2 pb-3 space-y-1">
<a class="block px-3 py-2 text-gray-700 hover:text-primary hover:bg-gray-100 rounded-md" href="discuss.php">게시판</a>
<!-- 문제 -->
<div class="mobile-dropdown">
<button class="w-full text-left px-3 py-2 text-gray-700 hover:text-primary hover:bg-gray-100 rounded-md flex items-center justify-between">
<span>문제</span>
<svg class="h-4 w-4" fill="none" viewBox="0 0 24 24" stroke="currentColor">
<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 9l-7 7-7-7" />
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<a class="block px-3 py-2 text-sm text-gray-700 hover:bg-gray-100" href="problemset.php">문제</a>
<a class="block px-3 py-2 text-sm text-gray-700 hover:bg-gray-100" href="problemsetsol.php">문제집</a>
<a class="block px-3 py-2 text-sm text-gray-700 hover:bg-gray-100" href="recentprob.php">최근 100문제</a>
</div>
</div>
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<button class="w-full text-left px-3 py-2 text-gray-700 hover:text-primary hover:bg-gray-100 rounded-md flex items-center justify-between">
<span>수업</span>
<svg class="h-4 w-4" fill="none" viewBox="0 0 24 24" stroke="currentColor">
<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 9l-7 7-7-7" />
</svg>
</button>
<div class="mobile-submenu hidden pl-4">
<a class="block px-3 py-2 text-sm text-gray-700 hover:bg-gray-100" href="class.php?class_id=0">최근 수업</a>
<a class="block px-3 py-2 text-sm text-gray-700 hover:bg-gray-100" href="class.php?school=">내 수업</a>
<a class="block px-3 py-2 text-sm text-gray-700 hover:bg-gray-100" href="class.php">학교 수업</a>
<a class="block px-3 py-2 text-sm text-gray-700 hover:bg-gray-100" href="classop.php">개인 강의</a>
</div>
</div>
<a class="block px-3 py-2 text-gray-700 hover:text-primary hover:bg-gray-100 rounded-md" href="status.php">채점상황</a>
<!-- 순위 -->
<div class="mobile-dropdown">
<button class="w-full text-left px-3 py-2 text-gray-700 hover:text-primary hover:bg-gray-100 rounded-md flex items-center justify-between">
<span>순위</span>
<svg class="h-4 w-4" fill="none" viewBox="0 0 24 24" stroke="currentColor">
<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 9l-7 7-7-7" />
</svg>
</button>
<div class="mobile-submenu hidden pl-4">
<a class="block px-3 py-2 text-sm text-gray-700 hover:bg-gray-100" href="ranklist.php">전체 순위</a>
<a class="block px-3 py-2 text-sm text-gray-700 hover:bg-gray-100" href="ranklist_1.php">그룹내 순위</a>
<a class="block px-3 py-2 text-sm text-gray-700 hover:bg-gray-100" href="ranklist_g.php">그룹별 순위</a>
</div>
</div>
<a class="block px-3 py-2 text-gray-700 hover:text-primary hover:bg-gray-100 rounded-md" href="contest.php"><span class='badge badge-pill badge-danger'>10</span><span class=red> 이벤트</span></a>
<!-- 도구 -->
<div class="mobile-dropdown">
<button class="w-full text-left px-3 py-2 text-gray-700 hover:text-primary hover:bg-gray-100 rounded-md flex items-center justify-between">
<span>도구</span>
<svg class="h-4 w-4" fill="none" viewBox="0 0 24 24" stroke="currentColor">
<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 9l-7 7-7-7" />
</svg>
</button>
<div class="mobile-submenu hidden pl-4">
<a class="block px-3 py-2 text-sm text-gray-700 hover:bg-gray-100" href="tools/memo.html">아이디어 연습장</a>
<a class="block px-3 py-2 text-sm text-gray-700 hover:bg-gray-100" href="random.php">랜덤 번호 뽑기</a>
</div>
</div>
<!-- FAQ -->
<div class="mobile-dropdown">
<button class="w-full text-left px-3 py-2 text-gray-700 hover:text-primary hover:bg-gray-100 rounded-md flex items-center justify-between">
<span>FAQ</span>
<svg class="h-4 w-4" fill="none" viewBox="0 0 24 24" stroke="currentColor">
<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 9l-7 7-7-7" />
</svg>
</button>
<div class="mobile-submenu hidden pl-4">
<a class="block px-3 py-2 text-sm text-gray-700 hover:bg-gray-100" href="faqs.ko.php">FAQ</a>
<a class="block px-3 py-2 text-sm text-gray-700 hover:bg-gray-100" href="edufaq.php">교사 권한 FAQ</a>
<a class="block px-3 py-2 text-sm text-gray-700 hover:bg-gray-100" href="history.php">코드업 역사</a>
<a class="block px-3 py-2 text-sm text-gray-700 hover:bg-gray-100" href="info.php">코드업 통계</a>
<a class="block px-3 py-2 text-sm text-gray-700 hover:bg-gray-100" href="book.php">도서 안내</a>
</div>
</div>
<!-- 로그인/회원가입 (모바일) -->
<div class="border-t border-gray-200 pt-2 mt-2">
<a class="block px-3 py-2 text-gray-700 hover:text-primary hover:bg-gray-100 rounded-md flex items-center" href="registerpage.php">
<i class="fas fa-user-plus mr-1"></i>가입하기
</a>
<a class="block px-3 py-2 bg-primary text-white hover:bg-blue-700 rounded-md flex items-center" href="loginpage.php">
<i class="fas fa-sign-in-alt mr-1"></i>로그인
</a>
</div>
</div>
</div>
</nav>
</header>
<!-- 모바일 메뉴 JavaScript -->
<script>
document.addEventListener('DOMContentLoaded', function() {
const mobileMenuButton = document.getElementById('mobile-menu-button');
const mobileMenu = document.getElementById('mobile-menu');
// 모바일 메뉴 토글
if (mobileMenuButton && mobileMenu) {
mobileMenuButton.addEventListener('click', function() {
mobileMenu.classList.toggle('hidden');
});
}
// 모바일 드롭다운 서브메뉴 토글
document.querySelectorAll('.mobile-dropdown > button').forEach(function(button) {
button.addEventListener('click', function(e) {
e.preventDefault();
const submenu = this.nextElementSibling;
if (submenu && submenu.classList.contains('mobile-submenu')) {
submenu.classList.toggle('hidden');
// 화살표 회전
const arrow = this.querySelector('svg');
if (arrow) {
arrow.style.transform = submenu.classList.contains('hidden') ? '' : 'rotate(180deg)';
}
}
});
});
});
</script>
<!-- 데스크톱 드롭다운 토글 스크립트 -->
<script>
document.addEventListener('DOMContentLoaded', function() {
// 호버(마우스오버) 또는 포커스시 드롭다운 열기, 마우스아웃/블러시 닫기
document.querySelectorAll('.header-dropdown').forEach(function(container){
const menu = container.querySelector('.dropdown-menu');
if (!menu) return;
let hideTimer = null;
function showMenu(){
clearTimeout(hideTimer);
// 다른 열린 메뉴는 닫기
document.querySelectorAll('.dropdown-menu').forEach(function(m){ if (m !== menu) m.classList.add('hidden'); });
menu.classList.remove('hidden');
}
function hideMenuSoon(){
clearTimeout(hideTimer);
hideTimer = setTimeout(function(){ menu.classList.add('hidden'); }, 150);
}
// 마우스 오버/아웃
container.addEventListener('mouseenter', function(e){ showMenu(); });
container.addEventListener('mouseleave', function(e){ hideMenuSoon(); });
// 키보드 접근성: 포커스가 들어오면 열고 포커스 나가면 닫기
container.addEventListener('focusin', function(){ showMenu(); });
container.addEventListener('focusout', function(){ hideMenuSoon(); });
});
// 외부 클릭 시 모든 드롭다운 닫기 (안전장치)
document.addEventListener('click', function(){
document.querySelectorAll('.dropdown-menu').forEach(function(m){ m.classList.add('hidden'); });
});
// ESC 키로 닫기
document.addEventListener('keydown', function(e){
if (e.key === 'Escape') {
document.querySelectorAll('.dropdown-menu').forEach(function(m){ m.classList.add('hidden'); });
}
});
});
</script>
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<style>
:root{ --nav-height: 4rem; }
main[role="main"]{ padding-top: var(--nav-height) !important; }
</style>
<script>
(function(){
function updateNavHeight(){
var nav = document.getElementById('navground');
if(!nav) return;
var h = nav.offsetHeight + 'px';
document.documentElement.style.setProperty('--nav-height', h);
}
document.addEventListener('DOMContentLoaded', updateNavHeight);
window.addEventListener('load', updateNavHeight);
window.addEventListener('resize', updateNavHeight);
// 네비 내부에 동적으로 요소가 추가되어 높이가 바뀔 수 있으므로 관찰자 등록
document.addEventListener('DOMContentLoaded', function(){
var nav = document.getElementById('navground');
if (nav && window.MutationObserver){
var mo = new MutationObserver(function(){ updateNavHeight(); });
mo.observe(nav, { attributes: true, childList: true, subtree: true });
}
});
})();
</script>
<main role="main" class="pt-16">
<div class="bg-gradient-to-br from-blue-900 to-blue-700 py-16">
<div class="container mx-auto px-4 text-white">
<h1 class="text-5xl font-bold text-center mb-4">CodeUp</h1>
<p class="text-xl text-center">Computational Thinking<br/>& Problem Solving</p>
</div>
</div>
<div id='main_notice' class='container mx-auto px-4 mt-4'><div class='bg-blue-100 border border-blue-400 text-blue-700 px-4 py-3 rounded relative' role='alert'><button type='button' class='absolute top-0 right-0 px-1 py-1 text-blue-700' onclick='this.parentElement.style.display='none'><span>×</span></button><div class='mr-4' ><p>- 2026.04.18. 서버의 파워 서플라이에 문제가 있는 것 같아 교체했습니다.</p></div></div></div>
<div class="container mx-auto px-4 mt-6 mb-2 flex justify-center">
<div class="w-full md:w-fit bg-white border border-gray-200 shadow-sm rounded-lg px-2 overflow-visible">
<ul class="flex flex-col md:flex-row items-stretch md:items-center py-1">
<li class="relative dropdown-item group w-full md:w-auto">
<a class="text-gray-700 hover:text-blue-600 hover:bg-blue-50 rounded-md transition cursor-pointer flex items-center justify-between md:justify-start font-medium
text-sm md:text-xs lg:text-sm
px-4 py-3 md:px-2 md:py-2 lg:px-4 lg:py-2
my-0 md:my-1"
role="button">
<span>온라인 저지</span>
<svg class="w-4 h-4 ml-1 transition-transform group-hover:rotate-180" fill="none" stroke="currentColor" viewBox="0 0 24 24">
<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 9l-7 7-7-7"></path>
</svg>
</a>
<div class="dropdown-menu absolute left-0 top-full w-full md:w-48 bg-white rounded-md shadow-xl hidden z-50 border border-gray-200 mt-1">
<a class="block px-4 py-3 text-sm text-gray-700 hover:bg-blue-50 hover:text-blue-600 transition border-b border-gray-100 last:border-0" href="http://boj.kr" target="_blank">BOJ</a>
<a class="block px-4 py-3 text-sm text-gray-700 hover:bg-blue-50 hover:text-blue-600 transition border-b border-gray-100 last:border-0" href="http://koistudy.net" target="_blank">KOISTUDY</a>
</div>
</li>
<li class="relative dropdown-item group w-full md:w-auto">
<a class="text-gray-700 hover:text-blue-600 hover:bg-blue-50 rounded-md transition cursor-pointer flex items-center justify-between md:justify-start font-medium
text-sm md:text-xs lg:text-sm
px-4 py-3 md:px-2 md:py-2 lg:px-4 lg:py-2
my-0 md:my-1"
role="button">
<span>프로그래밍 대회</span>
<svg class="w-4 h-4 ml-1 transition-transform group-hover:rotate-180" fill="none" stroke="currentColor" viewBox="0 0 24 24">
<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 9l-7 7-7-7"></path>
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