/**
 * 커피바리스타 온라인 시험 시스템 스타일
 */

/* 기본 스타일 */
:root {
    --primary-color: #6f4e37;
    --secondary-color: #8b7355;
    --accent-color: #c4a77d;
    --light-bg: #f8f5f0;
    --dark-text: #3d3d3d;
}

body {
    font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--light-bg);
    color: var(--dark-text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

/* 네비게이션 커스텀 */
.navbar {
    background-color: var(--primary-color) !important;
}

.navbar-brand {
    font-weight: 700;
}

/* 카드 스타일 */
.card {
    border: none;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    border-radius: 12px;
}

.card-header {
    background-color: white;
    border-bottom: 1px solid #eee;
    font-weight: 600;
}

/* 버튼 커스텀 */
.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-primary:hover {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
}

.btn-outline-primary {
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-outline-primary:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

/* 로그인 폼 */
.login-container {
    max-width: 400px;
    margin: 50px auto;
}

.login-card {
    padding: 40px;
}

.login-logo {
    font-size: 3rem;
    color: var(--primary-color);
}

/* 시험 관련 */
.exam-card {
    transition: transform 0.2s, box-shadow 0.2s;
}

.exam-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.12);
}

.level-badge {
    font-size: 0.9rem;
    padding: 5px 15px;
    border-radius: 20px;
}

.level-2 {
    background-color: #28a745;
    color: white;
}

.level-1 {
    background-color: #dc3545;
    color: white;
}

/* 시험 응시 화면 */
.exam-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: white;
    padding: 15px 0;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.timer {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.timer.warning {
    color: #ffc107;
}

.timer.danger {
    color: #dc3545;
    animation: blink 1s infinite;
}

@keyframes blink {
    50% { opacity: 0.5; }
}

.question-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.question-nav .btn {
    width: 40px;
    height: 40px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 500;
}

.question-nav .btn.answered {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.question-nav .btn.current {
    border: 3px solid var(--accent-color);
}

/* 문제 표시 */
.question-box {
    background-color: white;
    padding: 30px;
    border-radius: 12px;
    margin-bottom: 20px;
}

.question-text {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 25px;
}

.question-number {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    width: 35px;
    height: 35px;
    border-radius: 50%;
    text-align: center;
    line-height: 35px;
    font-weight: 700;
    margin-right: 10px;
}

/* 보기 옵션 */
.option-list {
    list-style: none;
    padding: 0;
}

.option-item {
    padding: 15px 20px;
    margin-bottom: 10px;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
}

.option-item:hover {
    border-color: var(--accent-color);
    background-color: #fffaf5;
}

.option-item.selected {
    border-color: var(--primary-color);
    background-color: #f8f5f0;
}

.option-item input[type="radio"] {
    margin-right: 10px;
}

/* 결과 화면 */
.result-box {
    text-align: center;
    padding: 50px 30px;
}

.result-score {
    font-size: 4rem;
    font-weight: 700;
    color: var(--primary-color);
}

.result-pass {
    font-size: 2rem;
    font-weight: 700;
    color: #28a745;
}

.result-fail {
    font-size: 2rem;
    font-weight: 700;
    color: #dc3545;
}

/* 정답/오답 표시 */
.answer-correct {
    background-color: #d4edda;
    border-color: #28a745;
}

.answer-wrong {
    background-color: #f8d7da;
    border-color: #dc3545;
}

/* 통계 카드 */
.stat-card {
    text-align: center;
    padding: 25px;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.stat-label {
    color: #6c757d;
    font-size: 0.9rem;
}

/* 테이블 스타일 */
.table {
    background-color: white;
}

.table th {
    background-color: #f8f9fa;
    font-weight: 600;
}

/* 관리자 사이드바 */
.admin-sidebar {
    min-height: calc(100vh - 120px);
    background-color: white;
    box-shadow: 2px 0 5px rgba(0, 0, 0, 0.05);
}

.admin-sidebar .nav-link {
    color: var(--dark-text);
    padding: 12px 20px;
    border-left: 3px solid transparent;
}

.admin-sidebar .nav-link:hover {
    background-color: var(--light-bg);
}

.admin-sidebar .nav-link.active {
    background-color: var(--light-bg);
    border-left-color: var(--primary-color);
    color: var(--primary-color);
    font-weight: 600;
}

/* 반응형 */
@media (max-width: 768px) {
    .login-container {
        margin: 20px;
    }
    
    .login-card {
        padding: 25px;
    }
    
    .timer {
        font-size: 1.2rem;
    }
    
    .question-nav .btn {
        width: 35px;
        height: 35px;
        font-size: 0.85rem;
    }
    
    .question-box {
        padding: 20px;
    }
    
    .result-score {
        font-size: 3rem;
    }
}

/* 애니메이션 */
.fade-in {
    animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 프로그레스 바 */
.progress-exam {
    height: 8px;
    border-radius: 4px;
}

/* 배지 */
.badge-difficulty-high {
    background-color: #dc3545;
}

.badge-difficulty-medium {
    background-color: #ffc107;
    color: #212529;
}

.badge-difficulty-low {
    background-color: #28a745;
}

/* 폼 스타일 */
.form-label {
    font-weight: 500;
}

.form-control:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 0.2rem rgba(111, 78, 55, 0.15);
}

/* 알림 */
.alert {
    border-radius: 8px;
    border: none;
}

/* 로딩 */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

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

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