@charset "utf-8";
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@300;400;500;700&display=swap');

:root {
    --primary-color: #4f46e5;
    --primary-hover: #4338ca;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
}

body {
    font-family: 'Noto Sans KR', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    margin: 0;
    padding: 0;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
}

header {
    background: #fff;
    padding: 20px 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 30px;
    text-align: center;
}

header h1 {
    margin: 0;
    color: var(--primary-color);
    font-size: 1.8rem;
    font-weight: 700;
}

/* 카드 및 섹션 */
.section-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    margin-bottom: 24px;
}

.section-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--primary-color);
    display: inline-block;
}

/* 주문 폼 */
.info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

@media (max-width: 600px) {
    .info-grid { grid-template-columns: 1fr; }
}

.form-group { margin-bottom: 15px; }
.form-group label { display: block; font-size: 0.9rem; color: var(--text-muted); margin-bottom: 5px; }
.form-control {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
    box-sizing: border-box;
}

/* 교재 목록 레이아웃 */
.category-group { margin-top: 40px; }
.category-name { font-size: 1.1rem; color: var(--text-muted); margin-bottom: 15px; }

.book-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
}

.book-card {
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 8px 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: transform 0.2s;
}

.book-card:hover { transform: translateY(-1px); border-color: var(--primary-color); }
.book-info .name { font-weight: 500; font-size: 0.9rem; }
.book-info .price { color: var(--text-muted); font-size: 0.8rem; }

.qty-input-wrapper { display: flex; align-items: center; }
.qty-input {
    width: 50px;
    padding: 5px;
    text-align: center;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    margin-left: 8px;
    font-size: 0.9rem;
}

@media (max-width: 600px) {
    .book-grid { grid-template-columns: 1fr; }
}

/* 하단 플로팅 바 */
.bottom-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: #fff;
    border-top: 1px solid var(--border-color);
    padding: 15px 0;
    box-shadow: 0 -4px 6px -1px rgba(0,0,0,0.1);
    z-index: 1000;
}

.bottom-content {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.price-summary { font-size: 1.1rem; }
.price-summary b { color: var(--primary-color); font-size: 1.3rem; }

.btn-order {
    background: var(--primary-color);
    color: #fff;
    border: none;
    padding: 12px 30px;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
}

.btn-order:hover { background: var(--primary-hover); }

/* 관리자 테이블 */
.admin-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

.admin-table th { background: #f1f5f9; text-align: left; padding: 12px; font-weight: 600; border-bottom: 2px solid var(--border-color); }
.admin-table td { padding: 12px; border-bottom: 1px solid var(--border-color); }
.admin-table tr:hover { background: #f8fafc; }

/* 배송 상태 배지 */
.status-badge {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}
.status-received { background: #e0f2fe; color: #0369a1; } /* 주문접수 */
.status-shipping { background: #fef3c7; color: #92400e; } /* 배송중 */

.search-box {
    background: #fff;
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 15px;
}

/* 탭 메뉴 스타일 */
.tabs {
    display: flex;
    gap: 5px;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
    overflow-x: auto;
    padding-bottom: 5px;
}
.tab-item {
    padding: 10px 20px;
    cursor: pointer;
    background: #f1f5f9;
    border-radius: 8px 8px 0 0;
    font-weight: 500;
    color: var(--text-muted);
    white-space: nowrap;
}
.tab-item.active {
    background: var(--primary-color);
    color: #fff;
}

/* 카테고리 콘텐츠 숨김/표시 */
.category-content { display: none; }
.category-content.active { display: block; }

/* 선택된 내역 요약 레이어 */
.selected-items-list {
    max-height: 150px;
    overflow-y: auto;
    background: #f8fafc;
    border-radius: 8px;
    padding: 10px;
    margin-bottom: 10px;
    display: none; /* 기본은 숨김, 수량이 있을 때 표시 */
    font-size: 0.85rem;
    border: 1px solid var(--border-color);
}
.selected-item {
    display: flex;
    justify-content: space-between;
    padding: 3px 0;
    border-bottom: 1px dashed #cbd5e1;
}