/**
 * Neo-Classical Manuscript Design
 * A harmonious blend of traditional East Asian aesthetics and modern web design
 */

/* ========================================
   CSS Variables - Color Palette
   ======================================== */
:root {
    /* Paper tones - warm, aged manuscript colors */
    --color-paper: #faf8f3;
    --color-paper-light: #fffef9;
    --color-paper-dark: #f5f2e8;

    /* Ink tones - traditional calligraphy ink */
    --color-ink: #2b2623;
    --color-ink-light: #4a4541;
    --color-ink-lighter: #6b6560;
    --color-ink-fade: #9a938e;

    /* Accent colors - cinnabar red and gold leaf */
    --color-cinnabar: #b8342c;
    --color-cinnabar-light: #d84a41;
    --color-gold: #c9a65c;
    --color-gold-light: #e0c080;

    /* Semantic colors */
    --color-border: #e5dfd0;
    --color-shadow: rgba(43, 38, 35, 0.08);
    --color-shadow-strong: rgba(43, 38, 35, 0.15);

    /* Typography */
    --font-serif: 'Noto Serif SC', 'Song', serif;
    --font-accent: 'Crimson Pro', 'Times New Roman', serif;

    /* Spacing rhythm */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2.5rem;
    --space-xl: 4rem;

    /* Transitions */
    --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: all 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ========================================
   Base Styles
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-serif);
    background: linear-gradient(135deg, var(--color-paper-light) 0%, var(--color-paper) 50%, var(--color-paper-dark) 100%);
    color: var(--color-ink);
    line-height: 1.75;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Subtle paper texture */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(43, 38, 35, 0.015) 2px, rgba(43, 38, 35, 0.015) 4px);
    pointer-events: none;
    z-index: 1;
}

.page-wrapper {
    position: relative;
    z-index: 2;
    max-width: 1600px;
    margin: 0 auto;
    padding: var(--space-lg) var(--space-md);
}

/* ========================================
   Decorative Seal
   ======================================== */
.decorative-seal {
    position: fixed;
    top: 2rem;
    right: 2rem;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--color-cinnabar) 0%, var(--color-cinnabar-light) 100%);
    border: 3px solid var(--color-paper);
    border-radius: 8px;
    opacity: 0.12;
    transform: rotate(12deg);
    z-index: 0;
    box-shadow: 0 8px 32px rgba(184, 52, 44, 0.15);
}

.decorative-seal::before {
    content: '藏';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 3rem;
    font-weight: 900;
    color: var(--color-paper-light);
    opacity: 0.8;
}

/* ========================================
   Header
   ======================================== */
.site-header {
    text-align: center;
    padding: var(--space-xl) 0;
    position: relative;
    margin-bottom: var(--space-xl);
}

.header-ornament {
    position: absolute;
    top: 50%;
    width: 120px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-gold), transparent);
    opacity: 0.4;
}

.header-ornament.left {
    left: 0;
    transform: translateY(-50%);
}

.header-ornament.right {
    right: 0;
    transform: translateY(-50%);
}

.title-group {
    max-width: 900px;
    margin: 0 auto;
}

.site-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    color: var(--color-ink);
    letter-spacing: 0.15em;
    margin-bottom: var(--space-sm);
    line-height: 1.3;
    position: relative;
}

.title-main {
    display: inline-block;
    animation: fadeSlideIn 1s ease-out;
}

.title-divider {
    display: inline-block;
    color: var(--color-cinnabar);
    margin: 0 0.5em;
    animation: fadeSlideIn 1.2s ease-out;
}

.title-sub {
    display: inline-block;
    animation: fadeSlideIn 1.4s ease-out;
}

.site-subtitle {
    font-family: var(--font-accent);
    font-size: 1.1rem;
    font-weight: 400;
    color: var(--color-ink-light);
    letter-spacing: 0.3em;
    opacity: 0;
    animation: fadeIn 1.6s ease-out forwards;
}

/* ========================================
   Statistics Cards
   ======================================== */
.stats-section {
    margin-bottom: var(--space-xl);
}

.stats-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--space-md);
    max-width: 1200px;
    margin: 0 auto;
}

.stat-card {
    background: var(--color-paper-light);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: var(--space-md) var(--space-lg);
    display: flex;
    align-items: center;
    gap: var(--space-md);
    box-shadow: 0 4px 20px var(--color-shadow);
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
    opacity: 0;
    transform: translateY(20px);
    animation: cardFadeIn 0.8s ease-out forwards;
}

.stat-card[data-index="0"] { animation-delay: 0.1s; }
.stat-card[data-index="1"] { animation-delay: 0.2s; }
.stat-card[data-index="2"] { animation-delay: 0.3s; }
.stat-card[data-index="3"] { animation-delay: 0.4s; }

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--color-cinnabar), var(--color-gold));
    opacity: 0;
    transition: var(--transition-smooth);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px var(--color-shadow-strong);
    border-color: var(--color-gold);
}

.stat-card:hover::before {
    opacity: 1;
}

.stat-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-cinnabar), var(--color-cinnabar-light));
    color: var(--color-paper-light);
    font-size: 1.8rem;
    font-weight: 700;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(184, 52, 44, 0.25);
    flex-shrink: 0;
}

.stat-content {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    flex: 1;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--color-ink-light);
    letter-spacing: 0.05em;
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-ink);
    line-height: 1.2;
}

/* ========================================
   Search Panel
   ======================================== */
.search-panel {
    background: var(--color-paper-light);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: var(--space-lg);
    margin-bottom: var(--space-lg);
    box-shadow: 0 8px 32px var(--color-shadow);
}

.search-header {
    margin-bottom: var(--space-md);
}

.search-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-ink);
    letter-spacing: 0.1em;
    position: relative;
    display: inline-block;
    padding-bottom: 0.5rem;
}

.search-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-cinnabar), var(--color-gold));
    border-radius: 2px;
}

.search-controls {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: var(--space-md);
    align-items: center;
}

.search-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.search-icon {
    position: absolute;
    left: 1.25rem;
    color: var(--color-ink-fade);
    font-size: 1.2rem;
    pointer-events: none;
    z-index: 2;
}

.search-input {
    width: 100%;
    padding: 1rem 3.5rem 1rem 3.5rem;
    border: 2px solid var(--color-border);
    border-radius: 12px;
    font-family: var(--font-serif);
    font-size: 1rem;
    color: var(--color-ink);
    background: var(--color-paper);
    transition: var(--transition-smooth);
}

.search-input::placeholder {
    color: var(--color-ink-fade);
}

.search-input:focus {
    outline: none;
    border-color: var(--color-cinnabar);
    background: var(--color-paper-light);
    box-shadow: 0 4px 20px rgba(184, 52, 44, 0.12);
}

.search-clear {
    position: absolute;
    right: 1rem;
    background: none;
    border: none;
    color: var(--color-ink-fade);
    font-size: 1rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 6px;
    transition: var(--transition-smooth);
    z-index: 2;
}

.search-clear:hover {
    color: var(--color-cinnabar);
    background: var(--color-paper-dark);
}

.control-group {
    display: flex;
    gap: var(--space-sm);
}

.control-select {
    padding: 1rem 1.5rem;
    border: 2px solid var(--color-border);
    border-radius: 12px;
    font-family: var(--font-serif);
    font-size: 0.95rem;
    color: var(--color-ink);
    background: var(--color-paper);
    cursor: pointer;
    transition: var(--transition-smooth);
}

.control-select:focus {
    outline: none;
    border-color: var(--color-cinnabar);
    box-shadow: 0 4px 20px rgba(184, 52, 44, 0.12);
}

.btn-export {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, var(--color-cinnabar), var(--color-cinnabar-light));
    color: var(--color-paper-light);
    border: none;
    border-radius: 12px;
    font-family: var(--font-serif);
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    cursor: pointer;
    transition: var(--transition-smooth);
    box-shadow: 0 4px 16px rgba(184, 52, 44, 0.25);
}

.btn-export:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(184, 52, 44, 0.35);
    background: linear-gradient(135deg, var(--color-cinnabar-light), var(--color-cinnabar));
}

.btn-export:active {
    transform: translateY(0);
}

/* ========================================
   Loading State
   ======================================== */
.loading-state {
    text-align: center;
    padding: var(--space-xl) 0;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    margin: 0 auto var(--space-md);
    border: 3px solid var(--color-border);
    border-top: 3px solid var(--color-cinnabar);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.loading-text {
    font-size: 1.1rem;
    color: var(--color-ink-light);
    letter-spacing: 0.1em;
}

/* ========================================
   Data Table
   ======================================== */
.table-wrapper {
    margin-bottom: var(--space-lg);
}

.table-scroll {
    overflow-x: auto;
    border-radius: 16px;
    box-shadow: 0 8px 32px var(--color-shadow);
}

.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background: var(--color-paper-light);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    overflow: hidden;
}

.table-head {
    background: linear-gradient(135deg, var(--color-ink) 0%, var(--color-ink-light) 100%);
}

.table-head th {
    padding: 1.25rem 1rem;
    text-align: left;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-paper-light);
    letter-spacing: 0.08em;
    white-space: nowrap;
    border-bottom: 2px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 10;
    cursor: pointer;
    user-select: none;
    transition: var(--transition-smooth);
}

.table-head th:hover {
    background: var(--color-ink-lighter);
}

.table-head th:first-child {
    border-top-left-radius: 16px;
}

.table-head th:last-child {
    border-top-right-radius: 16px;
}

.table-body tr {
    transition: var(--transition-smooth);
    cursor: pointer;
}

.table-body tr:hover {
    background: var(--color-paper-dark);
}

.table-body tr:not(:last-child) {
    border-bottom: 1px solid var(--color-border);
}

.table-body td {
    padding: 1rem;
    font-size: 0.95rem;
    color: var(--color-ink);
    vertical-align: middle;
}

.empty-value {
    color: var(--color-ink-fade);
    font-style: italic;
}

/* Sort indicators */
.sort-icon {
    display: inline-flex;
    align-items: center;
    margin-left: 0.5rem;
    opacity: 0.5;
    transition: var(--transition-smooth);
}

.table-head th:hover .sort-icon {
    opacity: 1;
}

.table-head th.active-sort {
    background: var(--color-cinnabar);
}

.table-head th.active-sort .sort-icon {
    opacity: 1;
}

/* ========================================
   No Data Message
   ======================================== */
.no-data-message {
    text-align: center;
    padding: var(--space-xl) var(--space-md);
    background: var(--color-paper-light);
    border: 2px dashed var(--color-border);
    border-radius: 16px;
    margin-bottom: var(--space-lg);
}

.no-data-icon {
    font-size: 4rem;
    color: var(--color-ink-fade);
    margin-bottom: var(--space-md);
    opacity: 0.3;
}

.no-data-text {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--color-ink-light);
    letter-spacing: 0.1em;
    margin-bottom: var(--space-xs);
}

.no-data-hint {
    font-size: 1rem;
    color: var(--color-ink-fade);
    letter-spacing: 0.05em;
}

/* ========================================
   Pagination
   ======================================== */
.pagination-nav {
    display: flex;
    justify-content: center;
    margin-bottom: var(--space-lg);
}

.pagination {
    display: flex;
    gap: 0.5rem;
    list-style: none;
    align-items: center;
}

.page-item {
    display: block;
}

.page-link {
    display: block;
    padding: 0.75rem 1.25rem;
    background: var(--color-paper-light);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    color: var(--color-ink);
    font-family: var(--font-serif);
    font-size: 0.95rem;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition-smooth);
}

.page-link:hover {
    background: var(--color-paper-dark);
    border-color: var(--color-cinnabar);
    color: var(--color-cinnabar);
    transform: translateY(-2px);
}

.page-item.active .page-link {
    background: linear-gradient(135deg, var(--color-cinnabar), var(--color-cinnabar-light));
    color: var(--color-paper-light);
    border-color: var(--color-cinnabar);
    box-shadow: 0 4px 16px rgba(184, 52, 44, 0.25);
}

.page-item.disabled .page-link {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: none;
}

/* ========================================
   Footer
   ======================================== */
.site-footer {
    text-align: center;
    padding: var(--space-xl) var(--space-md);
    margin-top: var(--space-xl);
    border-top: 2px solid var(--color-border);
    position: relative;
}

.footer-seal {
    display: inline-block;
    width: 50px;
    height: 50px;
    line-height: 50px;
    background: linear-gradient(135deg, var(--color-cinnabar), var(--color-cinnabar-light));
    color: var(--color-paper-light);
    font-size: 1.5rem;
    font-weight: 900;
    border-radius: 8px;
    margin-bottom: var(--space-md);
    box-shadow: 0 4px 16px rgba(184, 52, 44, 0.25);
    transform: rotate(-6deg);
}

.footer-text {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-ink);
    letter-spacing: 0.1em;
    margin-bottom: var(--space-xs);
}

.footer-subtext {
    font-family: var(--font-accent);
    font-size: 0.95rem;
    color: var(--color-ink-light);
    letter-spacing: 0.2em;
}

/* ========================================
   Detail Modal
   ======================================== */
.detail-modal {
    border: 2px solid var(--color-border);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 20px 60px var(--color-shadow-strong);
}

.detail-header {
    background: linear-gradient(135deg, var(--color-ink), var(--color-ink-light));
    color: var(--color-paper-light);
    padding: var(--space-md) var(--space-lg);
    border-bottom: 2px solid var(--color-cinnabar);
}

.detail-header .modal-title {
    font-size: 1.3rem;
    font-weight: 600;
    letter-spacing: 0.1em;
}

.detail-body {
    padding: var(--space-lg);
    background: var(--color-paper-light);
}

.detail-body .col-form-label {
    font-weight: 600;
    color: var(--color-ink-light);
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    margin-bottom: 0.25rem;
}

.detail-body .form-control-plaintext {
    padding: 0.75rem 1rem;
    background: var(--color-paper);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    color: var(--color-ink);
    font-size: 0.95rem;
}

/* ========================================
   Animations
   ======================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

@keyframes cardFadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Row fade-in animation */
.fade-in {
    animation: fadeIn 0.5s ease-out;
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 1024px) {
    .page-wrapper {
        padding: var(--space-md) var(--space-sm);
    }

    .stats-container {
        grid-template-columns: repeat(2, 1fr);
    }

    .search-controls {
        grid-template-columns: 1fr;
    }

    .control-group {
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    .site-title {
        font-size: 2rem;
        letter-spacing: 0.1em;
    }

    .site-subtitle {
        font-size: 0.95rem;
        letter-spacing: 0.2em;
    }

    .header-ornament {
        display: none;
    }

    .stats-container {
        grid-template-columns: 1fr;
    }

    .stat-card {
        padding: var(--space-sm) var(--space-md);
    }

    .search-panel {
        padding: var(--space-md);
    }

    .search-input {
        padding: 0.875rem 3rem 0.875rem 3rem;
        font-size: 0.95rem;
    }

    .control-select,
    .btn-export {
        padding: 0.875rem 1.25rem;
        font-size: 0.9rem;
    }

    .table-head th,
    .table-body td {
        padding: 0.875rem 0.75rem;
        font-size: 0.85rem;
    }

    .decorative-seal {
        width: 60px;
        height: 60px;
        top: 1rem;
        right: 1rem;
    }

    .decorative-seal::before {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .page-wrapper {
        padding: var(--space-sm) var(--space-xs);
    }

    .site-header {
        padding: var(--space-lg) 0;
    }

    .site-title {
        font-size: 1.5rem;
    }

    .site-subtitle {
        font-size: 0.85rem;
    }

    .stat-icon {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }

    .stat-value {
        font-size: 1.5rem;
    }

    .search-title {
        font-size: 1.2rem;
    }

    .control-group {
        gap: var(--space-xs);
    }

    .table-head th,
    .table-body td {
        padding: 0.75rem 0.5rem;
        font-size: 0.8rem;
    }
}

/* ========================================
   Custom Scrollbar
   ======================================== */
::-webkit-scrollbar {
    width: 12px;
    height: 12px;
}

::-webkit-scrollbar-track {
    background: var(--color-paper-dark);
    border-radius: 6px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--color-cinnabar), var(--color-gold));
    border-radius: 6px;
    border: 2px solid var(--color-paper-dark);
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--color-cinnabar-light), var(--color-gold-light));
}

/* ========================================
   Print Styles
   ======================================== */
@media print {
    body {
        background: white;
    }

    .decorative-seal,
    .search-panel,
    .btn-export,
    .pagination-nav,
    .site-footer {
        display: none;
    }

    .data-table {
        box-shadow: none;
        border: 1px solid #000;
    }
}