/* 古诗词阅读网 - 样式表 */

:root {
    --ink: #2c2416;
    --ink-light: #5a4e3c;
    --ink-muted: #8c7e6a;
    --ink-faint: #b8ad9a;
    --paper: #faf8f5;
    --paper-warm: #f5f1eb;
    --paper-deep: #ede8df;
    --card: #ffffff;
    --accent: #8b4513;
    --accent-light: #a0522d;
    --accent-soft: rgba(139, 69, 19, 0.08);
    --green: #2d6a4f;
    --green-soft: rgba(45, 106, 79, 0.1);
    --amber: #b8860b;
    --amber-soft: rgba(184, 134, 11, 0.1);
    --border: #e8e2d8;
    --shadow: 0 2px 8px rgba(44, 36, 22, 0.08);
    --shadow-lg: 0 8px 30px rgba(44, 36, 22, 0.12);
    --radius: 10px;
    --radius-lg: 16px;
    --font-serif: 'Noto Serif SC', 'Songti SC', 'SimSun', serif;
    --font-sans: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
}

* { 
    margin: 0; 
    padding: 0; 
    box-sizing: border-box; 
}

body {
    font-family: var(--font-sans);
    background: var(--paper);
    color: var(--ink);
    line-height: 1.6;
    min-height: 100vh;
}

/* Header */
.header {
    background: var(--ink);
    color: var(--paper);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 3px solid var(--accent);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.header-inner {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 2rem;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.brand-icon {
    width: 40px;
    height: 40px;
    background: var(--accent);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-serif);
    font-size: 1.3rem;
    font-weight: 700;
    flex-shrink: 0;
}

.brand h1 {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    font-weight: 600;
    white-space: nowrap;
}

.tagline {
    font-size: 0.73rem;
    opacity: 0.5;
    letter-spacing: 0.15em;
    margin-top: 1px;
}

.nav {
    display: flex;
    gap: 0.25rem;
    flex-shrink: 0;
}

.nav-item {
    padding: 0.45rem 1rem;
    color: rgba(250, 248, 245, 0.6);
    text-decoration: none;
    font-size: 0.87rem;
    font-weight: 500;
    border-radius: 6px;
    transition: 0.2s;
    white-space: nowrap;
}

.nav-item:hover {
    color: var(--paper);
    background: rgba(250, 248, 245, 0.08);
}

.nav-item.active {
    color: var(--paper);
    background: var(--accent);
}

/* Main Layout */
.main {
    max-width: 1440px;
    margin: 0 auto;
    padding: 1.5rem 2rem;
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 1.5rem;
    min-height: calc(100vh - 64px);
}

/* Sidebar */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    position: sticky;
    top: calc(64px + 1.5rem);
    max-height: calc(100vh - 64px - 3rem);
    overflow-y: auto;
}

.sidebar::-webkit-scrollbar {
    width: 6px;
}

.sidebar::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    flex-shrink: 0;
}

.card-title {
    font-family: var(--font-serif);
    font-size: 0.93rem;
    font-weight: 600;
    margin-bottom: 0.9rem;
    padding-bottom: 0.6rem;
    border-bottom: 1px solid var(--paper-deep);
}

/* Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.stat-item {
    text-align: center;
    padding: 0.7rem 0.4rem;
    border-radius: var(--radius);
    background: var(--paper-warm);
}

.stat-item.read { background: var(--green-soft); }
.stat-item.unread { background: var(--amber-soft); }

.stat-value {
    display: block;
    font-family: var(--font-serif);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--ink);
    line-height: 1.2;
}

.stat-item.read .stat-value { color: var(--green); }
.stat-item.unread .stat-value { color: var(--amber); }

.stat-label {
    font-size: 0.73rem;
    color: var(--ink-muted);
    display: block;
    margin-top: 2px;
}

.progress {
    margin-top: 0.25rem;
}

.progress-bar {
    height: 6px;
    background: var(--paper-deep);
    border-radius: 3px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--green), #3a7d7b);
    transition: width 0.5s;
    border-radius: 3px;
}

.progress-text {
    display: flex;
    justify-content: space-between;
    margin-top: 0.5rem;
    font-size: 0.75rem;
    color: var(--ink-muted);
}

/* Upload */
.upload-area {
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 1rem;
    text-align: center;
    margin-bottom: 0.75rem;
    position: relative;
    transition: 0.2s;
    min-height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.upload-area:hover {
    border-color: var(--accent);
    background: var(--accent-soft);
}

.upload-area.dragover {
    border-color: var(--accent);
    background: var(--accent-soft);
}

.upload-area input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
    width: 100%;
    height: 100%;
}

.upload-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.4rem;
    color: var(--ink-muted);
    pointer-events: none;
    width: 100%;
}

.upload-icon {
    width: 24px;
    height: 24px;
    color: var(--ink-faint);
    flex-shrink: 0;
}

.upload-text {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--ink-light);
}

.upload-hint {
    font-size: 0.68rem;
    color: var(--ink-faint);
}

.status-msg {
    margin-top: 0.5rem;
    font-size: 0.75rem;
    padding: 0.4rem 0.6rem;
    border-radius: 6px;
    word-break: break-word;
}

.status-msg:empty { display: none; }
.status-msg.success { background: var(--green-soft); color: var(--green); }
.status-msg.error { background: rgba(239, 68, 68, 0.1); color: #ef4444; }
.status-msg.info { background: rgba(74, 111, 165, 0.1); color: #4a6fa5; }

/* Search */
.search-box {
    position: relative;
}

.search-icon {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    width: 14px;
    height: 14px;
    color: var(--ink-muted);
    flex-shrink: 0;
}

.search-input {
    width: 100%;
    padding: 0.55rem 0.75rem 0.55rem 2.1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.85rem;
    background: var(--paper-warm);
    transition: 0.2s;
    font-family: var(--font-sans);
}

.search-input:focus {
    outline: none;
    border-color: var(--accent);
    background: var(--card);
    box-shadow: 0 0 0 3px var(--accent-soft);
}

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

/* Category Tabs */
.category-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 0.75rem;
}

.category-tab {
    padding: 0.35rem 0.75rem;
    background: var(--paper-warm);
    border-radius: 20px;
    font-size: 0.78rem;
    cursor: pointer;
    transition: 0.2s;
    border: 1px solid transparent;
}

.category-tab:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.category-tab.active {
    background: var(--accent);
    color: var(--paper);
}

/* Tag Cloud */
.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    margin-bottom: 0.75rem;
    max-height: 200px;
    overflow-y: auto;
    padding: 0.25rem;
}

.tag-cloud::-webkit-scrollbar {
    width: 4px;
}

.tag-cloud::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 2px;
}

.tag-item {
    padding: 0.25rem 0.55rem;
    background: var(--paper-warm);
    border-radius: 20px;
    font-size: 0.72rem;
    cursor: pointer;
    transition: 0.2s;
    border: 1px solid transparent;
}

.tag-item:hover {
    background: var(--accent-soft);
    color: var(--accent);
    border-color: var(--accent);
}

/* Selected Filters */
.selected-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    margin-top: 0.5rem;
    min-height: 0;
}

.filter-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.2rem 0.45rem;
    background: var(--accent-soft);
    color: var(--accent);
    border-radius: 20px;
    font-size: 0.7rem;
    border: 1px solid var(--accent);
}

.filter-tag button {
    background: none;
    border: none;
    color: var(--accent);
    cursor: pointer;
    font-size: 1rem;
    line-height: 1;
    padding: 0;
    display: flex;
    align-items: center;
}

.filter-tag button:hover {
    color: var(--ink);
}

/* Buttons */
.btn {
    padding: 0.55rem 1.1rem;
    border: none;
    border-radius: var(--radius);
    font-size: 0.83rem;
    font-weight: 600;
    cursor: pointer;
    transition: 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    white-space: nowrap;
}

.btn-primary {
    background: var(--accent);
    color: var(--paper);
}

.btn-primary:hover {
    background: var(--accent-light);
    box-shadow: var(--shadow);
}

.btn-ghost {
    background: transparent;
    color: var(--ink-muted);
    padding: 0.45rem 0.8rem;
    border: 1px solid transparent;
}

.btn-ghost:hover {
    color: var(--accent);
    background: var(--accent-soft);
    border-color: var(--accent-soft);
}

.btn-block { 
    width: 100%; 
}

.btn-sm { 
    padding: 0.35rem 0.7rem; 
    font-size: 0.75rem;
}

/* Content */
.content {
    min-width: 0;
}

.content-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

.content-header h2 {
    font-family: var(--font-serif);
    font-size: 1.35rem;
    font-weight: 600;
}

.badge {
    padding: 0.25rem 0.7rem;
    background: var(--paper-deep);
    border-radius: 20px;
    font-size: 0.78rem;
    color: var(--ink-muted);
    font-weight: 500;
}

/* Poem Grid */
.poem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1rem;
}

/* Poem Card */
.poem-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.2rem;
    cursor: pointer;
    transition: all 0.25s;
    position: relative;
    display: flex;
    flex-direction: column;
}

.poem-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: var(--amber);
    transition: 0.2s;
    border-radius: 3px 0 0 3px;
}

.poem-card.read::before {
    background: var(--green);
}

.poem-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent);
    background: var(--paper-warm);
}

.poem-card:active {
    transform: translateY(0);
}

.poem-card-header {
    margin-bottom: 0.7rem;
}

.poem-title {
    font-family: var(--font-serif);
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    line-height: 1.4;
}

.poem-author {
    font-size: 0.78rem;
    color: var(--ink-muted);
}

.poem-excerpt {
    font-family: var(--font-serif);
    font-size: 0.85rem;
    color: var(--ink-light);
    line-height: 1.8;
    margin-bottom: 0.8rem;
    flex: 1;
}

.poem-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
    margin-bottom: 0.7rem;
}

.tag {
    padding: 0.15rem 0.45rem;
    border-radius: 20px;
    font-size: 0.65rem;
    font-weight: 500;
    border: 1px solid currentColor;
    white-space: nowrap;
}

.tag-genre { background: rgba(107, 76, 138, 0.08); color: #6b4c8a; }
.tag-emotion_tone { background: rgba(160, 82, 45, 0.08); color: #a0522d; }
.tag-season { background: rgba(74, 111, 165, 0.08); color: #4a6fa5; }
.tag-location { background: rgba(45, 106, 79, 0.08); color: #2d6a4f; }
.tag-time_of_day { background: rgba(184, 134, 11, 0.08); color: #b8860b; }
.tag-philosophy { background: rgba(58, 125, 123, 0.08); color: #3a7d7b; }
.tag-nature_scenery { background: rgba(74, 111, 165, 0.08); color: #4a6fa5; }
.tag-plants { background: rgba(45, 106, 79, 0.08); color: #2d6a4f; }
.tag-animals { background: rgba(160, 82, 45, 0.08); color: #a0522d; }
.tag-buildings { background: rgba(139, 69, 19, 0.08); color: #8b4513; }
.tag-social_role { background: rgba(107, 76, 138, 0.08); color: #6b4c8a; }
.tag-technique { background: rgba(184, 134, 11, 0.08); color: #b8860b; }
.tag-rhetoric { background: rgba(160, 82, 45, 0.08); color: #a0522d; }
.tag-colors { background: rgba(184, 134, 11, 0.08); color: #b8860b; }
.tag-sounds { background: rgba(74, 111, 165, 0.08); color: #4a6fa5; }
.tag-solar_terms { background: rgba(184, 134, 11, 0.08); color: #b8860b; }
.tag-festival { background: rgba(184, 134, 11, 0.08); color: #b8860b; }
.tag-life_stage { background: rgba(58, 125, 123, 0.08); color: #3a7d7b; }
.tag-emotions { background: rgba(160, 82, 45, 0.08); color: #a0522d; }

.poem-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 0.75rem;
    border-top: 1px solid var(--paper-deep);
    margin-top: auto;
}

.read-toggle {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.75rem;
    color: var(--ink-muted);
    cursor: pointer;
}

.read-toggle input {
    width: 14px;
    height: 14px;
    accent-color: var(--green);
    cursor: pointer;
}

/* Pagination */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-top: 1.5rem;
    padding: 1rem;
}

.page-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.55rem 1rem;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.83rem;
    font-weight: 500;
    color: var(--ink-light);
    cursor: pointer;
    transition: all 0.2s;
}

.page-btn:hover:not(:disabled) {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-soft);
}

.page-btn:disabled {
    cursor: not-allowed;
}

.page-btn svg {
    width: 14px;
    height: 14px;
}

.page-info {
    font-size: 0.85rem;
    color: var(--ink-muted);
    min-width: 120px;
    text-align: center;
}

/* Empty & Loading */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
}

.empty-icon svg {
    width: 100px;
    height: 100px;
    margin-bottom: 1.5rem;
    opacity: 0.5;
}

.empty-state h3 {
    font-family: var(--font-serif);
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--ink-light);
    margin-bottom: 0.5rem;
}

.empty-state p {
    font-size: 0.85rem;
    color: var(--ink-muted);
}

.loading {
    text-align: center;
    padding: 3rem;
}

.spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 1rem;
}

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

/* Modal */
.modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(44, 36, 22, 0.5);
    backdrop-filter: blur(4px);
}

.modal-panel {
    position: relative;
    background: var(--card);
    border-radius: 20px;
    max-width: 680px;
    width: 100%;
    max-height: 85vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(44, 36, 22, 0.15);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 1.5rem 1.75rem 1rem;
    border-bottom: 1px solid var(--paper-deep);
}

.modal-title {
    font-family: var(--font-serif);
    font-size: 1.35rem;
    font-weight: 700;
}

.modal-author {
    font-size: 0.85rem;
    color: var(--ink-muted);
    margin-top: 0.25rem;
}

.modal-close {
    background: none;
    border: none;
    color: var(--ink-muted);
    cursor: pointer;
    padding: 0.4rem;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: var(--paper-warm);
    color: var(--ink);
}

.modal-close svg {
    width: 18px;
    height: 18px;
}

.modal-body {
    padding: 1.25rem 1.75rem;
    overflow-y: auto;
    flex: 1;
}

.modal-content {
    background: var(--paper-warm);
    border-radius: var(--radius);
    padding: 1.2rem 1.5rem;
    margin-bottom: 1.25rem;
    border-left: 3px solid var(--accent);
}

.modal-content p {
    font-family: var(--font-serif);
    font-size: 0.98rem;
    line-height: 2;
    margin-bottom: 0.5rem;
}

.modal-section {
    margin-bottom: 1rem;
}

.section-title {
    font-family: var(--font-serif);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ink-light);
    margin-bottom: 0.6rem;
}

.modal-tags {
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
}

.tag-group {
    width: 100%;
    margin-bottom: 0.5rem;
}

.tag-group-label {
    font-size: 0.75rem;
    color: var(--ink-muted);
    margin-bottom: 0.35rem;
    font-weight: 600;
    display: block;
}

.tag-group-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
}

.modal-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.75rem;
    border-top: 1px solid var(--paper-deep);
}

.read-checkbox {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85rem;
    color: var(--ink-muted);
    cursor: pointer;
}

.read-checkbox input {
    width: 15px;
    height: 15px;
    accent-color: var(--green);
}

/* Toast */
.toast {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    padding: 0.75rem 1.2rem;
    border-radius: var(--radius);
    color: white;
    font-size: 0.85rem;
    font-weight: 500;
    z-index: 2000;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
    max-width: 400px;
}

.toast-success { background: #10b981; }
.toast-error { background: #ef4444; }
.toast-info { background: #1e293b; }

/* Responsive */
@media (max-width: 1024px) {
    .main {
        grid-template-columns: 280px 1fr;
        padding: 1rem;
    }
    
    .poem-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    }
}

@media (max-width: 860px) {
    .main {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        position: static;
        max-height: none;
        flex-direction: row;
        flex-wrap: wrap;
    }
    
    .card {
        flex: 1;
        min-width: 280px;
    }
    
    .header-inner {
        flex-direction: column;
        height: auto;
        padding: 1rem 1.5rem;
        gap: 0.75rem;
    }
    
    .nav {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
    }
}

@media (max-width: 600px) {
    .header-inner {
        padding: 0.75rem 1rem;
    }
    
    .brand h1 {
        font-size: 1.1rem;
    }
    
    .tagline {
        display: none;
    }
    
    .main {
        padding: 0.75rem;
    }
    
    .sidebar {
        gap: 0.75rem;
    }
    
    .card {
        min-width: 100%;
    }
    
    .poem-grid {
        grid-template-columns: 1fr;
    }
    
    .modal {
        padding: 1rem;
    }
    
    .modal-panel {
        border-radius: var(--radius-lg);
    }
}

/* Print */
@media print {
    .header, .sidebar { display: none; }
    .main { grid-template-columns: 1fr; }
    .poem-card { break-inside: avoid; box-shadow: none; border: 1px solid #ccc; }
}

/* Focus */
*:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

*:focus:not(:focus-visible) {
    outline: none;
}

/* Selection */
::selection {
    background: var(--accent);
    color: var(--paper);
}