/* =========================================
   수집 도감 (Checklist) Stylesheet
   ========================================= */

body {
    background-color: var(--body-bg, #fdfbf7);
}

.checklist-container {
    max-width: 1000px;
    margin: 40px auto;
    padding: 0 15px;
    font-family: 'Paperlogy', sans-serif;
}

/* --- 상단 경고 문구 --- */
.warning-banner {
    background: #fff5f5;
    border: 1px solid #ffe3e3;
    color: #fa5252;
    padding: 12px 20px;
    border-radius: 12px;
    font-size: 13px;
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.warning-banner i {
    font-size: 18px;
}

/* --- 헤더 --- */
.checklist-header {
    text-align: center;
    margin-bottom: 30px;
}

.checklist-icon {
    width: 60px;
    height: 60px;
    background: #ffe8cc;
    color: #f76707;
    font-size: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
    margin: 0 auto 15px;
}

.checklist-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-color, #333);
    margin-bottom: 10px;
}

.checklist-desc {
    color: var(--stat-label, #868e96);
    font-size: 15px;
}

/* --- Red Area: Overall Progress --- */
.progress-card {
    background: white;
    padding: 24px 30px;
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.03);
    margin-bottom: 25px;
    border: 1px solid var(--border-subtle, #f1f3f5);
}

.progress-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.progress-title {
    font-size: 18px;
    font-weight: 700;
    color: #495057;
}

.progress-count {
    font-size: 15px;
    font-weight: 600;
    color: #adb5bd;
}

.progress-bar-bg {
    height: 12px;
    background: #f1f3f5;
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 8px;
}

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, #ff8787, #ffa8a8);
    border-radius: 6px;
    width: 0%;
    transition: width 0.5s ease-out;
}

.progress-percent {
    font-size: 13px;
    color: #adb5bd;
}

/* --- Blue Area: Categories Grid --- */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin-bottom: 30px;
}

.category-card {
    background: white;
    border: 2px solid transparent;
    padding: 16px;
    border-radius: 16px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.02);
    cursor: pointer;
    transition: all 0.2s;
    user-select: none;
}

.category-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.05);
}

.category-card.active {
    border-color: #ffc9c9;
    background: #fff5f5;
}

.category-card.active .category-icon {
    color: #ff6b6b;
}

.category-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.category-icon {
    font-size: 16px;
    color: #868e96;
}

.category-name {
    font-size: 15px;
    font-weight: 700;
    color: #495057;
}

.cat-progress-bg {
    height: 6px;
    background: #e9ecef;
    border-radius: 3px;
    margin-bottom: 6px;
    overflow: hidden;
}

.cat-progress-fill {
    height: 100%;
    background: #d0ebff;
    width: 0%;
    transition: width 0.4s ease;
}

.category-card.active .cat-progress-fill {
    background: #ff8787;
}

.cat-counts {
    font-size: 12px;
    color: #adb5bd;
}

/* --- Action Bar --- */
.action-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    flex-wrap: wrap;
    gap: 15px;
}

.search-box {
    flex: 1;
    min-width: 250px;
    position: relative;
}

.search-box i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: #adb5bd;
}

.search-box input {
    width: 100%;
    padding: 12px 15px 12px 40px;
    border: 1px solid #e9ecef;
    border-radius: 12px;
    font-family: inherit;
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s;
}

.search-box input:focus {
    border-color: #339af0;
}

.action-buttons {
    display: flex;
    gap: 10px;
}

.action-btn {
    padding: 10px 18px;
    border: none;
    border-radius: 12px;
    font-family: inherit;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: opacity 0.2s;
}

.action-btn:hover {
    opacity: 0.85;
}

.btn-export { background: #b2f2bb; color: #2b8a3e; }
.btn-import { background: #a5d8ff; color: #1864ab; }
.btn-reset { background: #ffc9c9; color: #e03131; }
.btn-continuous { background: #e9ecef; color: #495057; }
.btn-continuous.active { background: #ffd8a8; color: #e8590c; }

/* --- Green Area: Item Lists --- */
.category-container {
    display: none;
    animation: fadeIn 0.3s ease;
}

.category-container.active {
    display: block;
}

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

.list-header {
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.list-header h3 {
    margin: 0;
    font-size: 18px;
    font-weight: 700;
    color: #343a40;
}

.list-count {
    color: #868e96;
    font-size: 14px;
}

.items-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}

.item-row {
    display: flex;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid #f1f3f5;
}

.item-checkbox {
    width: 20px;
    height: 20px;
    border: 2px solid #dee2e6;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    margin-right: 12px;
    flex-shrink: 0;
}

.item-checkbox i {
    opacity: 0;
    color: white;
    font-size: 12px;
}

.item-row.checked .item-checkbox {
    background: #ff8787;
    border-color: #ff8787;
}

.item-row.checked .item-checkbox i {
    opacity: 1;
}

.item-name {
    flex: 1;
    font-size: 14px;
    color: #495057;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    user-select: none;
    cursor: pointer;
}

.item-row.checked .item-name {
    color: #ced4da;
    text-decoration: line-through;
}

.item-mastery-btn {
    width: 22px;
    height: 22px;
    border: 2px solid #9fb0c8;
    border-radius: 50%;
    background: transparent;
    color: #9fb0c8;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 8px;
    padding: 0;
    position: relative;
    flex-shrink: 0;
    transition: all 0.2s;
}

.item-mastery-btn i {
    font-size: 11px;
}

.item-mastery-btn:hover {
    border-color: #9c4dff;
    color: #9c4dff;
}

.item-row.mastered .item-mastery-btn {
    border-color: #9c4dff;
    color: #9c4dff;
    box-shadow: 0 0 8px rgba(156, 77, 255, 0.28);
}

.item-mastery-btn.disabled,
.item-mastery-btn[aria-disabled="true"] {
    border-color: #d5dbe5;
    color: #c2cad7;
    cursor: not-allowed;
    box-shadow: none;
}

.item-mastery-btn.disabled::after,
.item-mastery-btn[aria-disabled="true"]::after {
    content: "";
    position: absolute;
    width: 18px;
    height: 2px;
    border-radius: 999px;
    background: #c2cad7;
    transform: rotate(-42deg);
}

.item-stars {
    display: flex;
    gap: 2px;
}

.star-icon {
    color: #dee2e6;
    font-size: 14px;
    cursor: pointer;
    transition: color 0.2s, transform 0.1s;
}

.star-icon:hover {
    transform: scale(1.2);
}

.star-icon.filled {
    color: #fcc419;
}

/* =========================================
   Responsive Design (Mobile)
   ========================================= */
@media (max-width: 900px) {
    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .items-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .categories-grid {
        grid-template-columns: 1fr;
    }
    .items-grid {
        grid-template-columns: 1fr;
    }
    .action-bar {
        flex-direction: column;
        align-items: stretch;
    }
    .action-buttons {
        justify-content: space-between;
    }
}