/* === Radar Informacji — Newspaper Style === */

:root {
    --paper-bg: #faf6ee;
    --paper-bg-alt: #f3eed9;
    --paper-border: #d9cfb7;
    --paper-rule: #c8bda3;
    --ink: #1e1e1e;
    --ink-light: #4a4a4a;
    --ink-muted: #8a8078;
    --accent: #1a3c6e;
    --accent-light: #2b5ea7;
    --positive: #2d703a;
    --negative: #a03030;
    --ambivalent: #6e6e6e;
    --serif: 'Playfair Display', 'Georgia', serif;
    --body: 'Source Sans 3', 'Helvetica Neue', sans-serif;
    --article: 'EB Garamond', 'Georgia', serif;
    --mono: 'JetBrains Mono', 'Fira Code', monospace;
    --sidebar-bg: #f5f0e5;
    --frame-border: #c8bda3;
    --nav-bg: #faf6ee;
    --page-bg: #ede8d8;
    --card-shadow: rgba(0,0,0,0.06);
    --card-shadow-hover: rgba(0,0,0,0.10);
    --card-border-subtle: rgba(0,0,0,0.03);
    --page-glow: rgba(255,250,235,0.5);
    --hot-topic-glow: rgba(160,48,48,0.15);
}

* { box-sizing: border-box; }

/* Grain overlay for aged-paper texture */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.35;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='400' height='400'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='400' height='400' filter='url(%23n)' opacity='0.05'/%3E%3C/svg%3E");
    background-size: 200px 200px;
    mix-blend-mode: multiply;
}

body {
    font-family: var(--body);
    color: var(--ink);
    background-color: var(--page-bg);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.max-w-xl { max-width: 900px; }
.max-w-lg { max-width: 560px; }

/* ====== Navbar ====== */
.navbar {
    background: var(--nav-bg) !important;
    border-bottom: 3px double var(--paper-border);
    padding: 0.75rem 0;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}
.navbar-brand {
    font-family: var(--serif);
    color: var(--ink) !important;
    padding: 0.25rem 0;
}
.brand-title {
    font-size: 1.3rem;
    font-weight: 900;
    letter-spacing: -0.5px;
    line-height: 1.1;
}
.brand-subtitle {
    font-size: 0.6rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--ink-muted);
    display: block;
    margin-top: -2px;
    border-bottom: 1px solid var(--paper-border);
    padding-bottom: 3px;
}
.navbar .nav-link {
    color: var(--ink-light) !important;
    font-weight: 500;
    font-size: 0.88rem;
    padding: 0.4rem 0.75rem !important;
    border-radius: 4px;
    transition: all 0.2s ease;
}
.navbar .nav-link.active, .navbar .nav-link:hover {
    color: var(--accent) !important;
    background: rgba(26,60,110,0.04);
}

/* ---- Mobile: navbar fix ---- */
@media (max-width: 576px) {
    .navbar-brand {
        font-size: 1rem;
        padding: 0.35rem 0;
    }
    .brand-title { font-size: 1rem; }
    .brand-subtitle { display: none; }
    .navbar-collapse {
        background: var(--nav-bg);
        border: 1px solid var(--paper-border);
        border-top: none;
        border-radius: 0 0 2px 2px;
        margin-top: -1px;
        padding: 0.5rem 1rem;
    }
    .navbar .nav-link {
        font-size: 0.95rem;
        padding: 0.5rem 0.75rem !important;
        border-radius: 2px;
    }
    .navbar .nav-link.active,
    .navbar .nav-link:hover {
        background: rgba(26,60,110,0.04);
    }
    .navbar-toggler {
        border-color: var(--paper-border);
        padding: 0.25rem 0.5rem;
    }
}
/* ---- Mobile: date bar fix ---- */
@media (max-width: 576px) {
    .date-bar-inner {
        flex-wrap: wrap;
        gap: 0.3rem;
        align-items: center;
    }
    .date-bar-label {
        white-space: nowrap;
        font-size: 0.82rem;
        flex-shrink: 0;
    }
    .date-bar-inner > .d-flex:first-child {
        flex-wrap: nowrap;
        gap: 0.3rem;
        flex: 1 1 auto;
        min-width: 0;
    }
    .date-bar-input {
        width: auto;
        min-width: 0;
        flex: 0 1 auto;
        font-size: 0.82rem;
    }
    .date-bar-tools {
        margin-left: auto !important;
        flex-shrink: 0;
        gap: 0.25rem;
    }
    .date-bar-tools .btn {
        padding: 0.25rem 0.4rem !important;
        font-size: 0.78rem;
    }
    .date-nav-btn {
        width: 32px;
        height: 32px;
        padding: 0 !important;
    }
}

.date-bar {
    background: linear-gradient(180deg, var(--paper-bg) 0%, #f5f0e4 100%);
    border-bottom: 2px solid var(--paper-border);
    border-top: 1px solid var(--paper-border);
    padding: 0.6rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 8px var(--card-shadow), 0 1px 2px rgba(0,0,0,0.03);
}
.date-bar::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--paper-border), transparent);
}
.date-bar-inner {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}
.date-bar-label { font-size: 0.85rem; white-space: nowrap; }
.date-bar-input {
    width: 150px;
    border: 1.5px solid var(--paper-border);
    font-size: 0.85rem;
    border-radius: 2px;
    font-family: var(--body);
    background: white;
}
.date-bar-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 0.2rem rgba(26,60,110,0.12);
}
.date-nav-btn {
    width: 32px;
    height: 32px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 2px;
    border: 1.5px solid var(--paper-border);
    transition: all 0.2s ease;
}
.date-nav-btn:hover { border-color: var(--accent); color: var(--accent); }
.date-bar-tools { display: flex; gap: 0.25rem; }
.date-bar-tools .btn {
    padding: 0.25rem 0.5rem;
    font-size: 0.82rem;
    border-radius: 2px;
}

/* ====== Quick dates frame (newspaper-style date strip) ====== */
.quick-dates-frame {
    margin-bottom: 1.25rem;
    background: linear-gradient(180deg, var(--paper-bg) 0%, var(--paper-bg-alt) 100%);
    border: 1.5px solid var(--frame-border);
    border-radius: 2px;
    padding: 0.85rem 1.25rem;
    box-shadow: 0 1px 4px rgba(0,0,0,0.04), inset 0 1px 0 rgba(255,255,255,0.3);
    position: relative;
}
.quick-dates-frame::before {
    content: '';
    position: absolute;
    top: 1px;
    left: 16px;
    right: 16px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--paper-rule), transparent);
}
.quick-dates-frame::after {
    content: '';
    position: absolute;
    bottom: 1px;
    left: 16px;
    right: 16px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--paper-rule), transparent);
}
.quick-dates-label {
    font-size: 0.82rem;
    color: var(--accent);
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    font-family: var(--serif);
    font-weight: 700;
    letter-spacing: 0.3px;
}
.quick-dates-line {
    flex: 1;
    min-width: 40px;
    height: 1px;
    background: linear-gradient(90deg, var(--paper-rule), transparent);
}
.quick-date-btn {
    font-family: var(--serif);
    font-size: 0.82rem;
    font-weight: 600;
    border: 1px solid var(--paper-border);
    background: transparent;
    color: var(--ink);
    padding: 0.3rem 0.85rem;
    border-radius: 1px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    white-space: nowrap;
    position: relative;
    letter-spacing: 0.2px;
}
.quick-date-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 1px;
    opacity: 0;
    background: linear-gradient(180deg, rgba(26,60,110,0.04), transparent);
    transition: opacity 0.2s ease;
}
.quick-date-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(26,60,110,0.03);
}
.quick-date-btn:hover::before { opacity: 1; }
.quick-date-btn.active {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
    box-shadow: 0 1px 4px rgba(26,60,110,0.2);
}
.quick-date-btn.active::before { display: none; }

/* ====== Compact Day Stats Bar (newspaper summary strip) ====== */
.stats-bar {
    background: linear-gradient(180deg, var(--paper-bg) 0%, var(--paper-bg-alt) 100%);
    border: 1.5px solid var(--paper-border);
    border-radius: 2px;
    padding: 0.45rem 1rem;
    box-shadow: 0 1px 4px rgba(0,0,0,0.04), inset 0 1px 0 rgba(255,255,255,0.3);
    position: relative;
}
.stats-bar::after {
    content: '';
    position: absolute;
    bottom: 1px;
    left: 12px;
    right: 12px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--paper-rule), transparent);
}
.stats-bar-inner {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    font-size: 0.82rem;
    position: relative;
}
.stats-bar-inner::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    right: 0;
    height: 1px;
}
.stats-bar-icon {
    color: var(--accent);
    font-size: 0.9rem;
}
.stats-bar-title {
    font-family: var(--serif);
    font-weight: 700;
    color: var(--ink);
    font-size: 0.88rem;
    white-space: nowrap;
    letter-spacing: 0.3px;
}
.stats-bar-divider {
    width: 1px;
    height: 16px;
    background: var(--paper-border);
    flex-shrink: 0;
}
.stats-bar-item {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    white-space: nowrap;
    color: var(--ink-light);
    font-size: 0.82rem;
}
.stats-bar-item strong {
    color: var(--ink);
    font-family: var(--serif);
    font-size: 1.05rem;
    font-weight: 700;
}
.stats-bar-item small {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    font-weight: 500;
}
.stats-bar-item .pol-icon {
    font-size: 1rem;
}
.stats-bar-item .pol-icon.positive { color: var(--positive); }
.stats-bar-item .pol-icon.negative { color: var(--negative); }
.lang-tag {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    padding: 1px 5px;
    border-radius: 4px;
    background: var(--page-bg);
    border: 1px solid var(--paper-border);
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--ink-light);
}

/* ====== Sentiment horizontal gradient bar ====== */
.sentiment-bar-wrap { margin-top: 0.75rem; }
.sentiment-scale-row {
    margin-top: 8px;
}
.sentiment-scale-bar {
    position: relative;
    height: 3px;
    border-radius: 2px;
    margin-bottom: 6px;
}
.sentiment-scale-gradient {
    height: 100%;
    width: 100%;
    border-radius: 2px;
    background: linear-gradient(90deg, #c62828 0%, #ef5350 25%, #bdbdbd 45%, #bdbdbd 55%, #66bb6a 75%, #2e7d32 100%);
}
.sentiment-scale-marker {
    position: absolute;
    top: -3px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--ink);
    border: 2px solid white;
    box-shadow: 0 1px 4px rgba(0,0,0,0.3);
    transition: left 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}
.sentiment-bar-row {
    display: flex;
    height: 28px;
    border-radius: 14px;
    overflow: hidden;
    background: rgba(0,0,0,0.08);
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.1);
    position: relative;
}
.sentiment-segment { transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1); height: 100%; }
.sentiment-positive {
    background: linear-gradient(90deg, #66bb6a 0%, #43a047 50%, #2e7d32 100%);
    box-shadow: inset 0 0 0 1px rgba(255,255,255,0.15);
}
.sentiment-ambivalent {
    background: linear-gradient(90deg, #bdbdbd 0%, #9e9e9e 50%, #757575 100%);
    box-shadow: inset 0 0 0 1px rgba(255,255,255,0.1);
}
.sentiment-negative {
    background: linear-gradient(90deg, #ef5350 0%, #e53935 50%, #c62828 100%);
    box-shadow: inset 0 0 0 1px rgba(255,255,255,0.15);
}
.sentiment-labels {
    display: flex;
    justify-content: space-between;
    margin-top: 8px;
    font-size: 0.78rem;
}
.sentiment-label {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border-radius: 12px;
    font-weight: 600;
    transition: transform 0.2s ease;
}
.sentiment-label:hover { transform: scale(1.05); }
.sentiment-label.sentiment-positive { background: rgba(102,187,106,0.2); color: #a5d6a7; }
.sentiment-label.sentiment-ambivalent { background: rgba(189,189,189,0.15); color: #e0e0e0; }
.sentiment-label.sentiment-negative { background: rgba(239,83,80,0.2); color: #ef9a9a; }

/* ====== Cluster sentiment horizontal bar ====== */
.cluster-sentiment-bar-wrap { margin-top: 0.5rem; padding-top: 0.5rem; border-top: 1px solid var(--paper-border); }
.cluster-sentiment-bar-track {
    display: flex;
    height: 6px;
    border-radius: 3px;
    overflow: hidden;
    background: rgba(0,0,0,0.06);
    margin-bottom: 6px;
}
.cluster-sentiment-bar-track .cseg { height: 100%; transition: width 0.5s ease; }
.cseg-positive { background: linear-gradient(90deg, #66bb6a, #2e7d32); }
.cseg-ambivalent { background: linear-gradient(90deg, #bdbdbd, #9e9e9e); }
.cseg-negative { background: linear-gradient(90deg, #ef5350, #c62828); }
.cluster-sentiment-bar-labels {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.72rem;
    color: var(--ink-light);
}
.cluster-sentiment-bar-labels .cs-label {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    padding: 1px 6px;
    border-radius: 8px;
    font-weight: 600;
}
.cluster-sentiment-bar-labels .cs-label.positive { background: rgba(102,187,106,0.2); color: #388e3c; }
.cluster-sentiment-bar-labels .cs-label.ambivalent { background: rgba(189,189,189,0.2); color: #757575; }
.cluster-sentiment-bar-labels .cs-label.negative { background: rgba(239,83,80,0.2); color: #c62828; }
.cluster-sentiment-bar-labels .cs-label.positive i { color: #2e7d32; }
.cluster-sentiment-bar-labels .cs-label.ambivalent i { color: #757575; }
.cluster-sentiment-bar-labels .cs-label.negative i { color: #c62828; }

/* === Compact day stats bar === */
.stats-bar-wrap { margin-top: 0.5rem; }
.stats-bar-gradient-track {
    display: flex;
    height: 5px;
    border-radius: 3px;
    overflow: hidden;
    background: rgba(0,0,0,0.06);
    margin-bottom: 4px;
}
.stats-bar-gradient-track .sseg { height: 100%; transition: width 0.5s ease; }
.sseg-positive { background: linear-gradient(90deg, #66bb6a, #2e7d32); }
.sseg-ambivalent { background: linear-gradient(90deg, #bdbdbd, #9e9e9e); }
.sseg-negative { background: linear-gradient(90deg, #ef5350, #c62828); }
.stats-bar-gradient-labels {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 0.7rem;
    color: var(--ink-light);
}
.stats-bar-gradient-labels .sl {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    padding: 1px 5px;
    border-radius: 8px;
    font-weight: 600;
}
.stats-bar-gradient-labels .sl.positive { background: rgba(102,187,106,0.15); color: #388e3c; }
.stats-bar-gradient-labels .sl.ambivalent { background: rgba(189,189,189,0.15); color: #757575; }
.stats-bar-gradient-labels .sl.negative { background: rgba(239,83,80,0.15); color: #c62828; }
.stats-bar-gradient-labels .sl.positive i { color: #2e7d32; }
.stats-bar-gradient-labels .sl.ambivalent i { color: #757575; }
.stats-bar-gradient-labels .sl.negative i { color: #c62828; }

/* ====== Filter sidebar (newspaper-style sidebar) ====== */
.filter-card {
    border: 1.5px solid var(--paper-border) !important;
    background: linear-gradient(180deg, var(--sidebar-bg) 0%, var(--paper-bg) 100%);
    border-radius: 2px !important;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06), inset 0 1px 0 rgba(255,255,255,0.3);
    overflow: hidden;
    position: relative;
}
.filter-card::before {
    content: '';
    position: absolute;
    top: 1px;
    left: 14px;
    right: 14px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--paper-rule), transparent);
}
.filter-card .card-body {
    padding: 1rem 1.15rem !important;
}
.filter-card .card-title {
    font-family: var(--serif);
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--accent);
    display: inline-flex;
    align-items: center;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--paper-rule);
    margin-bottom: 0.85rem;
    letter-spacing: 0.3px;
}
.filter-search-wrapper {
    position: relative;
}
.filter-search-wrapper .form-control {
    padding-left: 2rem;
    border-radius: 2px;
    border: 1.5px solid var(--paper-border);
    font-size: 0.82rem;
    background: white;
    transition: border-color 0.2s, box-shadow 0.2s;
    font-family: var(--body);
}
.filter-search-wrapper .form-control:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 0.2rem rgba(26,60,110,0.1);
}
.filter-search-wrapper .search-icon {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--ink-muted);
    font-size: 0.85rem;
    pointer-events: none;
}
.filter-section-label {
    font-family: var(--serif);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    font-weight: 700;
    color: var(--ink-muted);
    margin-bottom: 0.4rem;
}
/* Sentiment toggle chips — soft pills */
.sentiment-btn {
    border-radius: 50px !important;
    padding: 0.35rem 1rem !important;
    font-size: 0.78rem !important;
    font-weight: 600 !important;
    font-family: var(--body) !important;
    border: 1.5px solid var(--paper-border) !important;
    background: transparent !important;
    color: var(--ink-light) !important;
    transition: all 0.2s ease !important;
    letter-spacing: 0.2px;
    text-transform: none;
    position: relative;
}
.sentiment-btn:hover {
    border-color: var(--accent-light) !important;
    background: rgba(26,60,110,0.05) !important;
    color: var(--accent) !important;
    transform: translateY(-1px);
}
.sentiment-btn:active {
    transform: translateY(0px);
}
.sentiment-btn.active {
    color: white !important;
    border-width: 1.5px !important;
    box-shadow: 0 2px 8px rgba(0,0,0,0.12), inset 0 1px 0 rgba(255,255,255,0.15);
}
.sentiment-btn[data-sentiment="all"].active {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%) !important;
    border-color: var(--accent) !important;
}
.sentiment-btn[data-sentiment="positive"].active {
    background: linear-gradient(135deg, var(--positive) 0%, #3a8a4a 100%) !important;
    border-color: var(--positive) !important;
}
.sentiment-btn[data-sentiment="negative"].active {
    background: linear-gradient(135deg, var(--negative) 0%, #b84040 100%) !important;
    border-color: var(--negative) !important;
}
.sentiment-btn[data-sentiment="ambivalent"].active {
    background: linear-gradient(135deg, var(--ambivalent) 0%, #8a8a8a 100%) !important;
    border-color: var(--ambivalent) !important;
}

/* ====== Horizontal filters bar (desktop) ====== */
.filters-bar {
    background: linear-gradient(180deg, var(--sidebar-bg) 0%, var(--paper-bg) 100%);
    border: 1.5px solid var(--paper-border);
    border-radius: 2px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06), inset 0 1px 0 rgba(255,255,255,0.3);
    padding: 0.75rem 1.15rem;
    margin-bottom: 0.75rem;
    position: relative;
}
.filters-bar::before {
    content: '';
    position: absolute;
    top: 1px;
    left: 14px;
    right: 14px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--paper-rule), transparent);
}
.filters-bar-inner {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}
.filter-group {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

/* ====== Clustering info ====== */
.clustering-info-card { background: var(--sidebar-bg); border: 1px solid var(--paper-border) !important; }
.clustering-info-card .card-body { padding: 0.75rem 1rem !important; }
.clustering-chip {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.72rem;
    background: white;
    border: 1px solid var(--paper-border);
    border-radius: 20px;
    padding: 3px 10px;
    color: var(--ink-light);
    font-weight: 500;
}
.clustering-chip strong { color: var(--ink); }

/* ====== Newspaper Grid ====== */
.newspaper-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
#dateNewspaperGrid.newspaper-grid { grid-template-columns: 1fr; }
@media (max-width: 767px) { .newspaper-grid { grid-template-columns: 1fr; } }

/* ====== Cluster Card (newspaper article style) ====== */
.cluster-card {
    background: var(--paper-bg);
    border: 1px solid var(--paper-border);
    border-radius: 2px;
    box-shadow: 0 1px 3px var(--card-shadow), 0 0 0 1px var(--card-border-subtle);
    transition: box-shadow 0.25s ease, transform 0.15s ease;
    display: flex;
    flex-direction: column;
    min-height: 180px;
    opacity: 0;
    position: relative;
}
.cluster-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 2px;
    opacity: 0.5;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='1.2' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)' opacity='0.025'/%3E%3C/svg%3E");
    background-size: 100px 100px;
    pointer-events: none;
}
.cluster-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 12px;
    right: 12px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--paper-rule), transparent);
    pointer-events: none;
}
.cluster-card:hover {
    box-shadow: 0 3px 14px var(--card-shadow-hover), 0 0 0 1px var(--card-border-subtle);
    transform: translateY(-1px);
}
.cluster-card:first-child {
    border-top: 4px solid var(--accent);
}
.cluster-card.fade-in { animation: fadeIn 0.35s ease forwards; }
.cluster-card.sidebar-highlight {
    box-shadow: 0 0 0 3px var(--accent), 0 4px 12px rgba(0,0,0,0.15) !important;
    transition: box-shadow 0.3s ease;
}
.cluster-card.sim-day-card {
    margin-bottom: 12px;
}

/* ====== Algorithm page ====== */
.algo-hero h1 {
    font-family: var(--serif);
    font-weight: 900;
    font-size: 2.2rem;
    color: var(--ink);
    letter-spacing: -0.5px;
    line-height: 1.15;
    padding-bottom: 0.75rem;
    border-bottom: 3px solid var(--accent);
    position: relative;
}
.algo-hero h1::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, var(--paper-border), transparent);
}

.algo-pipeline-flow {
    font-family: var(--mono);
    font-size: 0.78rem;
    color: var(--ink-muted);
    text-align: center;
    line-height: 1.8;
    background: var(--paper-bg-alt);
    border: 1px solid var(--paper-border);
    padding: 1rem;
    border-radius: 2px;
    overflow-x: auto;
}

.algo-stage {
    padding: 1rem 0;
    border-bottom: 1px solid var(--paper-border);
}
.algo-stage:last-child {
    border-bottom: none;
}

.stage-number {
    width: 36px;
    height: 36px;
    min-width: 36px;
    border-radius: 50%;
    background: var(--accent);
    color: white;
    font-family: var(--serif);
    font-weight: 700;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.stage-icon {
    color: var(--accent);
}

.algo-table {
    width: 100%;
    border-collapse: collapse;
    margin: 0.75rem 0;
    font-size: 0.85rem;
    border: 1px solid var(--paper-border);
    border-radius: 2px;
    overflow: hidden;
}
.algo-table th {
    background: var(--paper-bg-alt);
    font-family: var(--body);
    font-weight: 600;
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 0.5rem 0.75rem;
    border-bottom: 1.5px solid var(--paper-border);
    text-align: left;
}
.algo-table td {
    border-top: 1px solid var(--paper-border);
    padding: 0.45rem 0.75rem;
}
.algo-table td:first-child {
    font-family: var(--mono);
    font-size: 0.8rem;
    white-space: nowrap;
    color: var(--accent);
}
.algo-table code {
    font-family: var(--mono);
    font-size: 0.78rem;
    background: var(--paper-bg-alt);
    padding: 0.1em 0.35em;
    border-radius: 3px;
    border: 1px solid var(--paper-border);
}

[data-bs-theme="dark"] .algo-table {
    background: #1c1a17;
}
[data-bs-theme="dark"] .algo-table th {
    background: #242120;
    border-bottom-color: var(--paper-border);
}
[data-bs-theme="dark"] .algo-table td {
    border-top-color: var(--paper-border);
}
[data-bs-theme="dark"] .algo-table td:first-child {
    color: var(--accent-light);
}

/* ====== Hot topic cards ====== */
.cluster-card.is-hot {
    border-top: 4px solid var(--negative);
}
.cluster-card.is-hot:hover {
    box-shadow: 0 3px 14px rgba(160,48,48,0.12), 0 0 0 1px rgba(0,0,0,0.03);
}
.hot-topic-badge {
    background: linear-gradient(135deg, var(--negative), #c44040);
    color: #fff !important;
    font-size: 0.72rem;
    font-weight: 700;
    padding: 0.2rem 0.55rem;
    border-radius: 2px;
    letter-spacing: 0.3px;
    display: inline-block;
    box-shadow: 0 1px 4px var(--hot-topic-glow);
}
.cluster-domains {
    display: flex;
    gap: 0.3rem;
    flex-wrap: wrap;
    margin-top: 0.3rem;
}
.domain-tag {
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--ink-light);
    background: var(--paper-bg-alt);
    border: 1px solid var(--paper-border);
    padding: 0.1rem 0.4rem;
    border-radius: 1px;
    display: inline-block;
    white-space: nowrap;
    transition: all 0.2s ease;
}
.domain-tag:hover {
    color: var(--accent);
    border-color: var(--accent);
    background: rgba(26,60,110,0.04);
}

.cluster-card .card-header {
    background: var(--paper-bg-alt);
    border-bottom: 1.5px solid var(--paper-rule);
    padding: 1rem 1.25rem 0.6rem;
    flex-shrink: 0;
    position: relative;
}
.cluster-card .card-header::after {
    content: '';
    position: absolute;
    bottom: -1.5px;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--paper-border), transparent);
}
.cluster-card .card-body {
    padding: 0 1.25rem 1rem;
    overflow: visible;
    position: relative;
}

/* ====== Collapsible article ====== */
.collapsible-article {
    font-family: var(--article);
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--ink);
    margin-bottom: 0.25rem;
}

/* ====== Newspaper article typography ====== */
.cluster-article {
    font-family: var(--article);
    font-size: 1rem;
    line-height: 1.72;
    color: var(--ink);
    text-align: justify;
    hyphens: auto;
    -webkit-hyphens: auto;
    column-gap: 1.5rem;
}
.cluster-article > p {
    margin-bottom: 0.75rem;
    text-indent: 1.5em;
    orphans: 3;
    widows: 3;
}
.cluster-article > p:first-of-type {
    text-indent: 0;
}
.cluster-article > p:first-of-type::first-letter {
    font-family: var(--serif);
    font-size: 3.2em;
    font-weight: 700;
    float: left;
    line-height: 0.8;
    margin: 0.05em 0.12em 0 0;
    color: var(--accent);
}
.cluster-article h1, .cluster-article h2, .cluster-article h3,
.cluster-article h4, .cluster-article h5, .cluster-article h6 {
    font-family: var(--serif);
    font-weight: 700;
    color: var(--ink);
    margin-top: 1rem;
    margin-bottom: 0.5rem;
    line-height: 1.2;
}
.cluster-article h2 { font-size: 1.25rem; border-bottom: 1px solid var(--paper-rule); padding-bottom: 0.25rem; }
.cluster-article h3 { font-size: 1.1rem; }
.cluster-article h4 { font-size: 1rem; font-style: italic; color: var(--ink-light); }
.cluster-article blockquote {
    font-family: var(--article);
    font-style: italic;
    border-left: 3px solid var(--paper-rule);
    margin: 0.75rem 0;
    padding: 0.4rem 1rem;
    color: var(--ink-light);
    background: var(--paper-bg-alt);
}
.cluster-article blockquote p { text-indent: 0; margin-bottom: 0.25rem; }
.cluster-article code {
    font-family: var(--mono);
    font-size: 0.88em;
    background: var(--paper-bg-alt);
    padding: 0.15em 0.35em;
    border-radius: 3px;
    border: 1px solid var(--paper-border);
}
.cluster-article pre {
    font-family: var(--mono);
    font-size: 0.88rem;
    line-height: 1.5;
    background: var(--paper-bg-alt);
    border: 1px solid var(--paper-border);
    border-radius: 4px;
    padding: 0.75rem 1rem;
    margin: 0.75rem 0;
    overflow-x: auto;
}
.cluster-article pre code {
    background: transparent;
    border: none;
    padding: 0;
}
.cluster-article ul, .cluster-article ol {
    margin: 0.5rem 0;
    padding-left: 1.5rem;
}
.cluster-article li { margin-bottom: 0.25rem; }
.cluster-article hr {
    border: none;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--paper-rule), transparent);
    margin: 1rem 0;
}
.cluster-article a {
    color: var(--accent-light);
    text-decoration: underline;
    text-decoration-color: rgba(43,94,167,0.3);
    text-underline-offset: 2px;
    transition: text-decoration-color 0.2s ease;
}
.cluster-article a:hover { text-decoration-color: var(--accent-light); }
.cluster-article img { max-width: 100%; height: auto; border: 1px solid var(--paper-border); }
.cluster-article table {
    border-collapse: collapse;
    width: 100%;
    margin: 0.75rem 0;
    font-size: 0.92rem;
}
.cluster-article th, .cluster-article td {
    border: 1px solid var(--paper-border);
    padding: 0.4rem 0.6rem;
    text-align: left;
}
.cluster-article th {
    background: var(--paper-bg-alt);
    font-family: var(--body);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Decorative newspaper rule between articles */
.article-rule {
    height: 1px;
    margin: 0.75rem 0 0.5rem;
    background: linear-gradient(90deg, transparent, var(--paper-rule), var(--paper-border), var(--paper-rule), transparent);
}

/* ====== Headline ====== */
.cluster-headline {
    font-family: var(--serif);
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--ink);
    line-height: 1.25;
    margin-bottom: 0.5rem;
    letter-spacing: -0.3px;
    border-bottom: 1px solid transparent;
    padding-bottom: 0.4rem;
    transition: border-color 0.2s ease;
}
.cluster-card:hover .cluster-headline { border-bottom-color: var(--paper-rule); }
.cluster-card:first-child .cluster-headline {
    font-size: 1.6rem;
    color: var(--accent);
    letter-spacing: -0.5px;
    padding-bottom: 0.5rem;
}

/* ====== Meta (newspaper-style metadata strip) ====== */
.cluster-meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    font-size: 0.72rem;
    color: var(--ink-muted);
    margin-bottom: 0.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid transparent;
    font-family: var(--body);
}
.cluster-meta .badge {
    font-weight: 600;
    font-size: 0.65rem;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    padding: 0.25em 0.5em;
    border-radius: 1px;
    font-family: var(--serif);
}
.badge-positive { background: rgba(45,112,58,0.1) !important; color: var(--positive) !important; border: 1px solid rgba(45,112,58,0.2); }
.badge-negative { background: rgba(160,48,48,0.1) !important; color: var(--negative) !important; border: 1px solid rgba(160,48,48,0.2); }
.badge-ambivalent { background: rgba(110,110,110,0.1) !important; color: var(--ambivalent) !important; border: 1px solid rgba(110,110,110,0.2); }
.cluster-stats {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-top: 0.4rem;
    padding-top: 0.4rem;
    border-top: 1px solid var(--paper-border);
}
.stat-inline { display: flex; flex-direction: column; align-items: center; }
.stat-val { font-family: var(--serif); font-weight: 700; font-size: 1.1rem; }
.stat-lbl { font-size: 0.62rem; text-transform: uppercase; letter-spacing: 0.8px; color: var(--ink-muted); margin-top: 2px; font-weight: 600; }
.cluster-sources-header {
    font-family: var(--serif);
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    color: var(--ink-muted);
    margin-bottom: 0.4rem;
}
.cluster-sources-list { font-size: 0.78rem; margin: 0 0 0.5rem 0; padding-left: 1.2rem; }
.cluster-sources-list li { margin-bottom: 0.2rem; }
.cluster-sources-list li a { color: var(--accent-light); text-decoration: none; transition: color 0.2s; }
.cluster-sources-list li a:hover { color: var(--accent); text-decoration: underline; }
.source-collapse-btn {
    font-size: 0.78rem;
    color: var(--ink-muted);
    padding: 0;
    margin-top: 0.25rem;
}
.source-collapse-btn:hover {
    color: var(--accent);
}
.cluster-meta-item {
    display: inline-flex;
    align-items: center;
    margin-right: 1rem;
    font-size: 0.75rem;
    color: var(--ink-muted);
    font-family: var(--body);
}

/* ====== Similar days section ====== */
.similar-day-section { margin-bottom: 1.5rem; padding-bottom: 1.5rem; border-bottom: 1px solid var(--paper-border); }
.similar-day-section:last-child { border-bottom: none; }
.similar-day-title { font-family: var(--serif); font-size: 1.1rem; margin-bottom: 0.75rem; padding-bottom: 0.5rem; border-bottom: 2px solid var(--accent); }
.similarity-section { margin-top: 0.5rem; }
.sim-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}
.sim-dates-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
}
.sim-date-pill {
    font-size: 0.72rem;
    padding: 0.2rem 0.55rem;
    border-radius: 9999px;
}
.modal-day-nav {
    display: flex;
    justify-content: space-between;
}
.similarity-dates .btn { font-size: 0.7rem; margin-right: 0.25rem; margin-bottom: 0.25rem; padding: 0.2rem 0.55rem; }

/* ====== Date page newspaper title ====== */
.newspaper-title {
    font-family: var(--serif);
    font-weight: 900;
    font-size: 2.2rem;
    color: var(--ink);
    letter-spacing: -0.5px;
    line-height: 1.15;
    padding-bottom: 0.75rem;
    border-bottom: 3px solid var(--accent);
    position: relative;
}
.newspaper-title::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, var(--paper-border), transparent);
}
.date-page-subtitle {
    font-family: var(--serif);
    font-style: italic;
    font-size: 1.1rem;
    color: var(--ink-muted);
}
.back-link {
    font-family: var(--body);
    font-size: 0.88rem;
    color: var(--ink-muted);
    text-decoration: none;
    transition: color 0.2s;
}
.back-link:hover { color: var(--accent); }

/* ====== Section Title ====== */
.section-title {
    font-family: var(--serif);
    font-weight: 700;
    font-size: 1.4rem;
    color: var(--ink);
    border-bottom: 3px solid var(--accent);
    padding-bottom: 0.4rem;
    margin-bottom: 1rem;
    position: relative;
}
.section-title::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, var(--paper-border), transparent);
}

/* ====== Bookmarks panel (newspaper-style) ====== */
.bookmarks-overlay {
    position: fixed;
    top: 0;
    right: 0;
    width: 360px;
    height: 100vh;
    background: var(--paper-bg);
    box-shadow: -4px 0 20px rgba(0,0,0,0.12), -1px 0 0 var(--paper-bg);
    z-index: 1000;
    padding: 1.5rem;
    overflow-y: auto;
    border-left: 2px solid var(--paper-border);
}
.bookmarks-overlay::before {
    content: '';
    position: absolute;
    top: 1px;
    left: 16px;
    right: 16px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--paper-rule), transparent);
}
.bookmarks-panel { max-width: 360px; }
.bookmarks-panel h5 {
    font-family: var(--serif);
    font-weight: 700;
    color: var(--ink);
    border-bottom: 1.5px solid var(--paper-rule);
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
}
.bookmark-item { font-size: 0.82rem; }
.bookmark-item .link-btn { color: var(--accent-light); padding: 0; }
.bookmark-list { display: flex; flex-wrap: wrap; gap: 0.25rem; }

/* ====== Compare panel (newspaper-style) ====== */
.compare-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 440px;
    height: 100vh;
    background: var(--paper-bg);
    box-shadow: 4px 0 20px rgba(0,0,0,0.12);
    z-index: 1000;
    padding: 1.5rem;
    overflow-y: auto;
    border-right: 2px solid var(--paper-border);
}
.compare-overlay::after {
    content: '';
    position: absolute;
    bottom: 1px;
    left: 16px;
    right: 16px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--paper-rule), transparent);
}
.compare-panel { max-width: 440px; }
.compare-panel h5 {
    font-family: var(--serif);
    font-weight: 700;
    color: var(--ink);
    border-bottom: 1.5px solid var(--paper-rule);
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
}
.compare-result { font-size: 0.82rem; }
.compare-stats-box {
    padding: 0.5rem;
    background: var(--paper-bg-alt);
    border-radius: 2px;
    border: 1.5px solid var(--paper-border);
}

/* ====== Main Content ====== */
.main-content {
    flex: 1;
    padding: 1.5rem 0;
    background: var(--paper-bg);
    border-left: 1px solid var(--paper-border);
    border-right: 1px solid var(--paper-border);
    box-shadow: inset 1px 0 0 var(--paper-bg), inset -1px 0 0 var(--paper-bg), inset 0 0 60px var(--page-glow);
}

/* ====== Footer ====== */
.page-footer {
    margin-top: auto;
    padding: 2rem 1rem;
    background: var(--paper-bg);
    border-top: 1.5px solid var(--paper-border);
    font-size: 0.8rem;
    position: relative;
}
.page-footer::before {
    content: '';
    position: absolute;
    top: -1.5px;
    left: 16px;
    right: 16px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--paper-rule), transparent);
}
.page-footer p { margin-bottom: 0.2rem; }
.page-footer small { color: var(--ink-muted); }

/* ====== FIX #1: Floating sidebar (right side topic list) ====== */
.floating-sidebar {
    position: fixed;
    right: 0;
    top: 80px;
    z-index: 200;
    transition: transform 0.3s ease;
}
.floating-sidebar.collapsed {
    transform: translateX(calc(100% - 44px));
}
.floating-sidebar-content {
    width: 280px;
    height: calc(100vh - 140px);
    background: var(--paper-bg);
    border: 1px solid var(--paper-border);
    border-right: none;
    border-radius: 10px 0 0 10px;
    box-shadow: -4px 4px 16px rgba(0,0,0,0.1);
    display: flex;
    align-items: stretch;
    overflow: hidden;
}
.floating-sidebar-toggle {
    width: 44px;
    min-height: 44px;
    background: var(--accent);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 2px 2px 8px rgba(0,0,0,0.15);
    font-size: 1.2rem;
    transition: background 0.2s;
    flex-shrink: 0;
    border-radius: 10px 0 0 10px;
}
.floating-sidebar-toggle:hover { background: var(--accent-light); }

/* Dark mode sidebar toggle */
[data-bs-theme="dark"] .floating-sidebar-toggle {
    background: #3d3630;
    color: var(--accent);
    box-shadow: 2px 2px 8px rgba(0,0,0,0.25);
}
[data-bs-theme="dark"] .floating-sidebar-toggle:hover {
    background: #4a4238;
    box-shadow: 2px 2px 12px rgba(200,164,94,0.15);
}
.floating-sidebar-inner {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
.floating-sidebar-title {
    font-family: var(--serif);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--accent);
    padding: 12px 14px 8px;
    border-bottom: 1px solid var(--paper-border);
    margin: 0;
}
.floating-sidebar-list {
    flex: 1;
    overflow-y: auto;
    padding: 6px 0;
}
.sidebar-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    cursor: pointer;
    transition: background 0.15s;
    font-size: 0.75rem;
    color: var(--ink-light);
}
.sidebar-item:hover { background: rgba(26,60,110,0.06); }
.sidebar-item.active { background: rgba(26,60,110,0.1); color: var(--accent); font-weight: 600; }
.sidebar-item.active .sidebar-dot { transform: scale(1.3); }
.sidebar-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
    transition: transform 0.2s;
}
.sidebar-text {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ====== Dark Mode: Reading Room (lamp-lit newspaper at night) ====== */
[data-bs-theme="dark"] {
    --paper-bg: #1c1a17;
    --paper-bg-alt: #242120;
    --paper-border: #332e28;
    --paper-rule: #3d3630;
    --ink: #d4c8b8;
    --ink-light: #9a8e80;
    --ink-muted: #6a6058;
    --accent: #c8a45e;
    --accent-light: #e0be7a;
    --positive: #7db87d;
    --negative: #c97a7a;
    --ambivalent: #8a827a;
    --sidebar-bg: #222019;
    --frame-border: #3d3630;
    --nav-bg: #1c1a17;
    --page-bg: #141210;
    --card-shadow: rgba(0,0,0,0.5);
    --warm-glow: rgba(200,164,94,0.03);
}

/* Warm lamp-glow vignette over dark pages */
[data-bs-theme="dark"] body::before {
    opacity: 0.2;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='400' height='400'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='400' height='400' filter='url(%23n)' opacity='0.06'/%3E%3C/svg%3E");
    mix-blend-mode: screen;
}
[data-bs-theme="dark"] body::after {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9998;
    background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(200,164,94,0.06) 0%, transparent 70%);
}

[data-bs-theme="dark"] .cluster-card {
    box-shadow: 0 1px 3px rgba(0,0,0,0.4), 0 0 0 1px rgba(200,164,94,0.04);
    border-color: var(--paper-border);
    background: var(--paper-bg);
}
[data-bs-theme="dark"] .cluster-card::after {
    background: linear-gradient(90deg, transparent, var(--paper-rule), transparent);
}
[data-bs-theme="dark"] .cluster-card:hover {
    box-shadow: 0 3px 14px rgba(0,0,0,0.5), 0 0 0 1px rgba(200,164,94,0.06);
}
/* Dark mode quick dates handled below */
/* Dark mode filter-card handled below */
[data-bs-theme="dark"] .stats-bar {
    background: linear-gradient(180deg, #1e1c18 0%, #1c1a17 100%);
    border-color: var(--paper-border);
    box-shadow: 0 1px 4px rgba(0,0,0,0.2), inset 0 1px 0 rgba(200,164,94,0.02);
}
[data-bs-theme="dark"] .stats-bar-divider { background: var(--paper-rule) !important; }
[data-bs-theme="dark"] .filter-card { background: var(--sidebar-bg); }
[data-bs-theme="dark"] .clustering-info-card { background: var(--sidebar-bg); }
[data-bs-theme="dark"] .clustering-chip {
    background: #2e2a25;
    border-color: var(--paper-border);
    color: var(--ink-light);
    box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}
[data-bs-theme="dark"] .clustering-chip strong { color: var(--ink); }
[data-bs-theme="dark"] .sources-bar-track { background: var(--paper-border); }
[data-bs-theme="dark"] .sentiment-bar-row { background: rgba(255,255,255,0.06); }
[data-bs-theme="dark"] .sentiment-scale-gradient { background: linear-gradient(90deg, #c62828 0%, #e53935 25%, #757575 45%, #757575 55%, #66bb6a 75%, #43a047 100%) !important; }
[data-bs-theme="dark"] .sentiment-label.sentiment-positive { background: rgba(125,184,125,0.15); color: #a5d6a7; }
[data-bs-theme="dark"] .sentiment-label.sentiment-ambivalent { background: rgba(138,130,122,0.15); color: #bdbdbd; }
[data-bs-theme="dark"] .sentiment-label.sentiment-negative { background: rgba(201,122,122,0.15); color: #ef9a9a; }
[data-bs-theme="dark"] .cluster-article code { background: #2e2a25; border-color: var(--paper-border); color: var(--ink); }
[data-bs-theme="dark"] .cluster-article pre { background: #242120; border-color: var(--paper-border); }
[data-bs-theme="dark"] .cluster-article blockquote {
    background: #242120;
    border-left-color: var(--paper-rule);
    color: var(--ink-light);
    box-shadow: inset 0 0 20px rgba(200,164,94,0.02);
}
[data-bs-theme="dark"] .cluster-article { color: var(--ink); }
[data-bs-theme="dark"] .cluster-article h1, [data-bs-theme="dark"] .cluster-article h2,
[data-bs-theme="dark"] .cluster-article h3, [data-bs-theme="dark"] .cluster-article h4,
[data-bs-theme="dark"] .cluster-article h5, [data-bs-theme="dark"] .cluster-article h6 { color: var(--ink); }
[data-bs-theme="dark"] .cluster-article h2 { border-bottom-color: var(--paper-rule); }
[data-bs-theme="dark"] .cluster-article h4 { color: var(--ink-light); }
[data-bs-theme="dark"] .cluster-article a { color: var(--accent-light); text-decoration-color: rgba(200,164,94,0.3); }
[data-bs-theme="dark"] .cluster-article a:hover { color: var(--accent); text-decoration-color: var(--accent); }
[data-bs-theme="dark"] .cluster-article hr { background: linear-gradient(90deg, transparent, var(--paper-rule), transparent); }
[data-bs-theme="dark"] .compare-stats-box { background: #242120; border-color: var(--paper-border); box-shadow: inset 0 1px 0 rgba(200,164,94,0.03); }
[data-bs-theme="dark"] .main-content::-webkit-scrollbar-thumb { background: #4a4238; }
[data-bs-theme="dark"] .main-content::-webkit-scrollbar-thumb:hover { background: #5a5248; }
[data-bs-theme="dark"] .bookmark-item { border-color: var(--paper-border) !important; }
[data-bs-theme="dark"] .btn-outline-secondary { color: var(--ink-light); border-color: var(--paper-border); }
[data-bs-theme="dark"] .btn-outline-secondary:hover { background: #2e2a25; color: var(--ink); border-color: var(--paper-rule); }
[data-bs-theme="dark"] .form-control { background-color: #242120; border-color: var(--paper-border); color: var(--ink); }
[data-bs-theme="dark"] .form-control::placeholder { color: var(--ink-muted); }
[data-bs-theme="dark"] .badge.bg-light { background: #332e28 !important; color: var(--ink) !important; }
[data-bs-theme="dark"] .date-bar { background: linear-gradient(180deg, #1e1c18 0%, #1a1815 100%); }
[data-bs-theme="dark"] .quick-dates-frame {
    margin-bottom: 1.25rem; background: linear-gradient(180deg, #1e1c18 0%, #1a1815 100%); border-color: var(--frame-border); }
[data-bs-theme="dark"] .quick-dates-line { background: linear-gradient(90deg, var(--paper-rule), transparent); }
[data-bs-theme="dark"] .cluster-sources-list li a { color: var(--accent-light); }
[data-bs-theme="dark"] .cluster-sources-list li a:hover { color: var(--accent); }
[data-bs-theme="dark"] .floating-sidebar-content { background: var(--paper-bg); border-color: var(--paper-border); }
[data-bs-theme="dark"] .floating-sidebar-title { border-color: var(--paper-border); color: var(--accent); }
[data-bs-theme="dark"] .sidebar-item:hover { background: rgba(200,164,94,0.08); }
[data-bs-theme="dark"] .sidebar-item.active { background: rgba(200,164,94,0.12); color: var(--accent); }
[data-bs-theme="dark"] .lang-tag { background: var(--page-bg); border-color: var(--paper-border); }
[data-bs-theme="dark"] .stats-date-badge { background: rgba(255,255,255,0.08) !important; }
[data-bs-theme="dark"] .page-footer { background: var(--paper-bg); }
[data-bs-theme="dark"] .page-footer::before { background: linear-gradient(90deg, transparent, var(--paper-rule), transparent); }
[data-bs-theme="dark"] .page-footer small { color: var(--ink-muted); }
/* Dark mode overlays */
[data-bs-theme="dark"] .bookmarks-overlay {
    background: var(--paper-bg);
    box-shadow: -4px 0 20px rgba(0,0,0,0.3), -1px 0 0 var(--paper-bg);
}
[data-bs-theme="dark"] .compare-overlay {
    background: var(--paper-bg);
    box-shadow: 4px 0 20px rgba(0,0,0,0.3), 1px 0 0 var(--paper-bg);
}
/* Dark mode navbar */
[data-bs-theme="dark"] .navbar {
    background: var(--nav-bg) !important;
    border-bottom-color: var(--paper-border);
    box-shadow: 0 1px 3px rgba(0,0,0,0.3);
}
[data-bs-theme="dark"] .navbar-brand { color: var(--ink) !important; }
[data-bs-theme="dark"] .brand-subtitle { color: var(--ink-muted); border-bottom-color: var(--paper-border); }
[data-bs-theme="dark"] .navbar .nav-link { color: var(--ink-light) !important; }
[data-bs-theme="dark"] .navbar .nav-link.active,
[data-bs-theme="dark"] .navbar .nav-link:hover { color: var(--accent) !important; background: rgba(200,164,94,0.08); }
[data-bs-theme="dark"] .main-content {
    background: linear-gradient(180deg, #1e1c18 0%, #1c1a17 100%);
    border-left-color: var(--paper-border);
    border-right-color: var(--paper-border);
    box-shadow: inset 0 0 80px rgba(200,164,94,0.02);
}
/* Dark mode date page */
[data-bs-theme="dark"] .newspaper-title {
    color: var(--ink);
    border-bottom-color: var(--accent);
}
[data-bs-theme="dark"] .newspaper-title::after { background: linear-gradient(90deg, var(--paper-border), transparent); }
[data-bs-theme="dark"] .section-title {
    color: var(--ink);
    border-bottom-color: var(--accent);
    text-shadow: 0 0 20px rgba(200,164,94,0.1);
}
[data-bs-theme="dark"] .date-page-subtitle { color: var(--ink-light); }
[data-bs-theme="dark"] .back-link { color: var(--ink-muted); }
[data-bs-theme="dark"] .back-link:hover { color: var(--accent); }
[data-bs-theme="dark"] .cluster-card .card-header {
    border-bottom-color: var(--paper-rule);
    background: rgba(0,0,0,0.15);
}
[data-bs-theme="dark"] .cluster-card .card-body {
    background: transparent;
    box-shadow: inset 0 0 40px rgba(200,164,94,0.01);
}
[data-bs-theme="dark"] .cluster-meta { border-bottom-color: var(--paper-rule); }
[data-bs-theme="dark"] .cluster-stats { border-top-color: var(--paper-rule); }
[data-bs-theme="dark"] .similarity-dates .btn { background: #2e2a25; color: var(--ink-light); border-color: var(--paper-border); }
[data-bs-theme="dark"] .similarity-dates .btn:hover { background: var(--accent); color: #1c1a17; border-color: var(--accent); }
[data-bs-theme="dark"] .cluster-sentiment-bar-track { background: rgba(255,255,255,0.05); }
[data-bs-theme="dark"] .cseg-positive { background: linear-gradient(90deg, #81c784, #4caf50); }
[data-bs-theme="dark"] .cseg-ambivalent { background: linear-gradient(90deg, #8a827a, #757575); }
[data-bs-theme="dark"] .cseg-negative { background: linear-gradient(90deg, #e57373, #c62828); }
[data-bs-theme="dark"] .cluster-sentiment-bar-labels .cs-label.positive { background: rgba(125,184,125,0.15); color: #a5d6a7; }
[data-bs-theme="dark"] .cluster-sentiment-bar-labels .cs-label.ambivalent { background: rgba(138,130,122,0.15); color: #bdbdbd; }
[data-bs-theme="dark"] .cluster-sentiment-bar-labels .cs-label.negative { background: rgba(201,122,122,0.15); color: #ef9a9a; }
[data-bs-theme="dark"] .cluster-sentiment-bar-labels .cs-label.positive i { color: #81c784; }
[data-bs-theme="dark"] .cluster-sentiment-bar-labels .cs-label.ambivalent i { color: #8a827a; }
[data-bs-theme="dark"] .cluster-sentiment-bar-labels .cs-label.negative i { color: #e57373; }
[data-bs-theme="dark"] .stats-bar-gradient-track { background: rgba(255,255,255,0.05); }
[data-bs-theme="dark"] .stats-bar-gradient-labels .sl.positive { background: rgba(125,184,125,0.15); color: #a5d6a7; }
[data-bs-theme="dark"] .stats-bar-gradient-labels .sl.ambivalent { background: rgba(138,130,122,0.15); color: #bdbdbd; }
[data-bs-theme="dark"] .stats-bar-gradient-labels .sl.negative { background: rgba(201,122,122,0.15); color: #ef9a9a; }
[data-bs-theme="dark"] .stats-bar-gradient-labels .sl.positive i { color: #81c784; }
[data-bs-theme="dark"] .stats-bar-gradient-labels .sl.ambivalent i { color: #8a827a; }
[data-bs-theme="dark"] .stats-bar-gradient-labels .sl.negative i { color: #e57373; }

/* ====== Dark mode: filters + search (warm reading room) ====== */
[data-bs-theme="dark"] .filter-card {
    background: linear-gradient(180deg, #222019 0%, #1e1c18 100%) !important;
    border-color: var(--paper-border) !important;
    box-shadow: 0 1px 4px rgba(0,0,0,0.3), inset 0 1px 0 rgba(200,164,94,0.03);
}
[data-bs-theme="dark"] .filter-card::before {
    background: linear-gradient(90deg, transparent, var(--paper-rule), transparent);
}
[data-bs-theme="dark"] .filter-card .card-title {
    border-bottom-color: var(--paper-rule);
    color: var(--accent);
}
[data-bs-theme="dark"] .filter-card .card-body {
    background: transparent !important;
}
[data-bs-theme="dark"] .filter-search-wrapper .form-control {
    background: #242120;
    border-color: var(--paper-border);
    color: var(--ink);
}
[data-bs-theme="dark"] .filter-search-wrapper .form-control:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 0.2rem rgba(200,164,94,0.15);
}
[data-bs-theme="dark"] .filter-search-wrapper .form-control::placeholder {
    color: var(--ink);
    opacity: 0.35;
}
[data-bs-theme="dark"] .filter-search-wrapper .search-icon {
    color: var(--ink);
    opacity: 0.35;
}
[data-bs-theme="dark"] .filter-section-label {
    color: var(--ink);
}
[data-bs-theme="dark"] .sentiment-btn {
    border-color: rgba(255,255,255,0.12) !important;
    color: var(--ink-light) !important;
    background: transparent !important;
}
[data-bs-theme="dark"] .sentiment-btn:hover {
    border-color: var(--accent) !important;
    background: rgba(200,164,94,0.08) !important;
    color: var(--accent) !important;
}
[data-bs-theme="dark"] .sentiment-btn[data-sentiment="all"].active {
    background: linear-gradient(135deg, #5b7fb5 0%, #a89248 100%) !important;
    border-color: #7a6a30 !important;
    color: #fff !important;
    box-shadow: 0 2px 8px rgba(200,164,94,0.3);
}
[data-bs-theme="dark"] .sentiment-btn[data-sentiment="positive"].active {
    background: linear-gradient(135deg, #3d7a3d 0%, #5cb85c 100%) !important;
    border-color: #4a8a4a !important;
    color: #fff !important;
    box-shadow: 0 2px 8px rgba(125,184,125,0.3);
}
[data-bs-theme="dark"] .sentiment-btn[data-sentiment="negative"].active {
    background: linear-gradient(135deg, #b85050 0%, #d47070 100%) !important;
    border-color: #a04040 !important;
    color: #fff !important;
    box-shadow: 0 2px 8px rgba(201,122,122,0.3);
}
[data-bs-theme="dark"] .sentiment-btn[data-sentiment="ambivalent"].active {
    background: linear-gradient(135deg, #7a746a 0%, #9a9488 100%) !important;
    border-color: #6a645a !important;
    color: #fff !important;
    box-shadow: 0 2px 8px rgba(138,130,122,0.3);
}

/* Dark mode: horizontal filters bar */
[data-bs-theme="dark"] .filters-bar {
    background: linear-gradient(180deg, #2a2620 0%, #242120 100%);
    border-color: var(--paper-border);
    box-shadow: 0 1px 4px rgba(0,0,0,0.3), inset 0 1px 0 rgba(200,164,94,0.03);
}
[data-bs-theme="dark"] .filters-bar::before {
    background: linear-gradient(90deg, transparent, var(--paper-rule), transparent);
}

/* ====== Animations ====== */
@keyframes fadeIn { from { opacity:0; transform: translateY(10px); } to { opacity:1; transform: translateY(0); } }
.fade-in { opacity: 0; animation: fadeIn 0.35s ease forwards; }

/* ====== Dark mode: quick dates (warm reading room) ====== */
[data-bs-theme="dark"] .quick-dates-frame {
    background: linear-gradient(180deg, #1e1c18 0%, #1a1815 100%);
    border-color: var(--frame-border);
    box-shadow: 0 1px 4px rgba(0,0,0,0.2), inset 0 1px 0 rgba(200,164,94,0.04);
}
[data-bs-theme="dark"] .quick-dates-frame::before {
    background: linear-gradient(90deg, transparent, var(--paper-rule), transparent);
}
[data-bs-theme="dark"] .quick-dates-frame::after {
    background: linear-gradient(90deg, transparent, var(--paper-rule), transparent);
}
[data-bs-theme="dark"] .quick-dates-label {
    color: var(--accent);
}
[data-bs-theme="dark"] .quick-dates-line {
    background: linear-gradient(90deg, var(--paper-rule), transparent);
}
[data-bs-theme="dark"] .quick-date-btn {
    border-color: var(--paper-border);
    background: transparent;
    color: var(--ink-light);
    font-family: var(--serif);
}
[data-bs-theme="dark"] .quick-date-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(200,164,94,0.06);
}
[data-bs-theme="dark"] .quick-date-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: #1c1a17;
    box-shadow: 0 1px 6px rgba(200,164,94,0.3);
}
[data-bs-theme="dark"] .quick-date-btn.active::before { display: none !important; }

/* ====== Scrollbar ====== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #c8c0b4; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #b0a898; }
.main-content::-webkit-scrollbar-thumb { background: #c8bfa8; }
.main-content::-webkit-scrollbar-thumb:hover { background: #b0a38c; }
[data-bs-theme="dark"] ::-webkit-scrollbar-thumb { background: #4a4238; }
[data-bs-theme="dark"] ::-webkit-scrollbar-thumb:hover { background: #5a5248; }

/* ====== Scroll-to-top button ====== */
.scroll-top-btn {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1.5px solid var(--paper-border);
    background: var(--paper-bg);
    color: var(--ink-light);
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: opacity 0.25s ease, visibility 0.25s ease, transform 0.25s ease, background 0.2s, color 0.2s;
    z-index: 1060;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}
.scroll-top-btn.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.scroll-top-btn:hover {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
}
[data-bs-theme="dark"] .scroll-top-btn {
    background: #222019;
    border-color: var(--paper-border);
    color: var(--ink-light);
}
[data-bs-theme="dark"] .scroll-top-btn:hover {
    background: var(--accent);
    color: #1c1a17;
    border-color: var(--accent);
}
@media (max-width: 991px) {
    .scroll-top-btn {
        bottom: 16px;
        right: auto;
        left: 16px;
        z-index: 1040;
    }
}

/* ====== Quick dates mobile fix ====== */
/* ---- Mobile: quick dates ---- */
@media (max-width: 576px) {
    .quick-dates-frame {
        padding: 0.85rem 1rem;
        border-radius: 12px;
    }
    .quick-dates-frame .d-flex {
        flex-wrap: nowrap;
        gap: 0;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scroll-snap-type: x mandatory;
        padding-bottom: 4px;
        scrollbar-width: none;
    }
    .quick-dates-frame .d-flex::-webkit-scrollbar { display: none; }
    .quick-dates-line { display: none; }
    .quick-dates-label {
        flex-basis: auto;
        margin-bottom: 0;
        white-space: nowrap;
        padding-right: 0.75rem;
        border-right: 2px solid var(--frame-border);
        flex-shrink: 0;
    }
    .quick-dates-label i { color: var(--accent); }
    #quickDates {
        width: auto;
        display: inline-flex;
        gap: 0.4rem;
    }
    .quick-date-btn {
        flex: 0 0 auto;
        scroll-snap-align: start;
        min-width: 80px;
        padding: 0.45rem 1rem;
        font-size: 0.78rem;
        font-weight: 600;
        border-radius: 50px;
        border: 1.5px solid var(--paper-border);
        background: transparent;
        color: var(--ink);
        transition: all 0.2s ease;
    }
    .quick-date-btn:hover {
        border-color: var(--accent-light);
        background: rgba(26,60,110,0.05);
    }
    .quick-date-btn.active {
        background: var(--accent);
        color: white;
        border-color: var(--accent);
        box-shadow: 0 2px 10px rgba(26,60,110,0.3);
    }

    /* Mobile: filters bar */
    .filters-bar {
        flex-wrap: wrap;
        padding: 0.75rem;
        margin-bottom: 0.5rem;
    }
    .filters-bar-inner {
        flex-direction: column;
        gap: 0.5rem;
    }
    .filter-group {
        width: 100%;
        flex-direction: column;
        align-items: stretch;
    }
    /* Mobile: sentiment chips bigger tap targets */
    .sentiment-btn {
        padding: 0.4rem 1rem !important;
        font-size: 0.82rem !important;
        border-radius: 50px !important;
    }
    .filter-search-wrapper .form-control {
        width: 100%;
        height: 42px;
    }
    /* Mobile: filter improvements */
    .filter-card .card-body { padding: 0.85rem !important; }
    .filter-card .card-title {
        font-size: 0.82rem;
        padding-bottom: 0.45rem;
        margin-bottom: 0.65rem;
    }
    .filter-search-wrapper .form-control {
        font-size: 0.88rem;
        padding-left: 2.2rem;
        height: 42px;
    }
    .filter-search-wrapper .search-icon {
        left: 0.85rem;
        font-size: 0.9rem;
    }
    .filter-section-label { font-size: 0.7rem; }
}

/* ---- Mobile: filter card for small tablets ---- */
@media (min-width: 577px) and (max-width: 991px) {
    .quick-dates-frame .d-flex { flex-wrap: wrap; }
    .quick-date-btn {
        flex: 1 1 auto;
        text-align: center;
        min-width: 75px;
        padding: 0.4rem 0.75rem;
        font-size: 0.75rem;
    }
}

/* ====== Floating sidebar mobile: pop-up panel from bottom-right ====*/
@media (max-width: 991px) {
    .floating-sidebar {
        position: fixed;
        right: 16px;
        top: auto;
        bottom: 16px;
        z-index: 1050;
        pointer-events: none;
    }
    .floating-sidebar-content {
        width: 36px;
        height: 36px;
        border-radius: 18px;
        overflow: visible;
        border: none;
        box-shadow: none;
        pointer-events: auto;
        transition: width 0.3s ease, height 0.3s ease;
    }
    .floating-sidebar.collapsed .floating-sidebar-content {
        border: none;
        box-shadow: 0 2px 12px rgba(0,0,0,0.2);
        overflow: hidden;
    }
    .floating-sidebar:not(.collapsed) .floating-sidebar-content {
        width: 200px;
        height: auto;
        max-height: 50vh;
        border-radius: 16px;
        border: 1px solid var(--paper-border);
        box-shadow: 0 4px 24px rgba(0,0,0,0.18);
        overflow: visible;
    }
    .floating-sidebar-toggle {
        width: 36px;
        height: 36px;
        min-height: 36px;
        background: var(--accent);
        color: white;
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        border-radius: 18px;
        font-size: 1rem;
        transition: background 0.2s, border-radius 0.3s ease;
        box-shadow: 0 2px 8px rgba(0,0,0,0.2);
        flex-shrink: 0;
    }
    .floating-sidebar:not(.collapsed) .floating-sidebar-toggle {
        background: var(--accent-light);
        border-radius: 16px 16px 0 0;
        box-shadow: 0 -2px 8px rgba(0,0,0,0.1);
    }
    [data-bs-theme="dark"] .floating-sidebar-toggle {
        box-shadow: 0 2px 8px rgba(0,0,0,0.25);
    }
    [data-bs-theme="dark"] .floating-sidebar:not(.collapsed) .floating-sidebar-toggle {
        box-shadow: 0 -2px 8px rgba(0,0,0,0.15);
    }
    .floating-sidebar-inner {
        flex-direction: column;
        width: 100%;
        background: var(--paper-bg);
        border-radius: 0 0 16px 16px;
        overflow: hidden;
        max-height: 45vh;
        display: none;
    }
    .floating-sidebar:not(.collapsed) .floating-sidebar-inner {
        display: flex;
        overflow-y: auto;
    }
    .floating-sidebar-title {
        font-size: 0.78rem;
        padding: 8px 10px 6px;
        margin: 0;
        border-bottom: 1px solid var(--paper-border);
    }
    .floating-sidebar-list {
        max-height: 42vh;
        overflow-y: auto;
        padding: 2px 0;
    }
    .sidebar-item {
        padding: 6px 10px;
        font-size: 0.7rem;
        border-left: 2px solid transparent;
        transition: all 0.15s ease;
    }
    .sidebar-item:hover {
        background: rgba(26,60,110,0.04);
        border-left-color: var(--accent);
    }
    .sidebar-item.active {
        background: rgba(26,60,110,0.08);
        color: var(--accent);
        font-weight: 600;
        border-left-color: var(--accent);
    }
    .sidebar-dot {
        width: 6px;
        height: 6px;
    }
    .sidebar-text {
        max-width: 140px;
        font-size: 0.7rem;
    }
}

/* ====== Dark mode — hot topic badge ====== */
[data-bs-theme="dark"] .hot-topic-badge {
    background: linear-gradient(135deg, #d45050, #b84040);
    box-shadow: 0 1px 6px rgba(212,80,80,0.25);
}
[data-bs-theme="dark"] .domain-tag {
    background: rgba(255,255,255,0.06);
    border-color: rgba(255,255,255,0.12);
    transition: all 0.2s ease;
}
[data-bs-theme="dark"] .domain-tag:hover {
    background: rgba(200,164,94,0.1);
    border-color: var(--accent);
    color: var(--accent);
}
[data-bs-theme="dark"] .cluster-card.is-hot {
    border-top-color: #d45050;
}
[data-bs-theme="dark"] .cluster-card.is-hot:hover {
    box-shadow: 0 3px 14px rgba(212,80,80,0.15), 0 0 0 1px rgba(212,80,80,0.1);
}