/* ========================================
   LAYOUT - CSS Grid with Named Areas
   Kleptocracy Tracker
   ======================================== */

:root {
    /* Layout dimensions */
    --header-height: 85px;
    --filter-col-width: 190px;
    --gap-sm: 8px;
    --gap-md: 16px;
    --gap-lg: 24px;
    
    /* Colors */
    --primary-blue: #1a365d;
    --accent-blue: #0066cc;
    --accent-red: #c53030;
    --light-bg: #f7fafc;
    --results-bg: #edf2f7;
    --border-color: #cbd5e0;
    --text-dark: #1a202c;
    --text-muted: #718096;
}

html, body {
    margin: 0;
    padding: 0;
    overflow: hidden;
    height: 100%;
    background-color: #fff;
}

body {
    font-family: "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-weight: 500;
}

a,
a:visited,
a:hover,
a:focus,
a:active {
    text-decoration: none;
}

/* ========================================
   APP CONTAINER - Main Grid with Named Areas
   ======================================== */

#app-container {
    display: grid;
    grid-template-areas:
        "header header"
        "results filters";
    grid-template-rows: var(--header-height) 1fr;
    grid-template-columns: 1fr auto;
    height: 100vh;
    width: 100vw;
    overflow: hidden;
}

/* ========================================
   HEADER
   ======================================== */

#app-header {
    grid-area: header;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 var(--gap-lg);
    border-bottom: 3px solid var(--primary-blue);
    background: linear-gradient(135deg, #fff 0%, #f8fafc 100%);
}

#title h1 {
    font-family: "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-size: 36px;
    font-weight: 800;
    margin: 0;
    line-height: 1;
    color: var(--text-dark);
    letter-spacing: -0.5px;
}

#title .source-from {
    color: var(--text-muted);
    font-size: 14px;
    font-weight: 400;
    margin-top: 10px;
}

#title .source-link {
    font-size: 16px;
    font-weight: 500;
    color: var(--accent-blue);
}

#title .source-link:hover {
    text-decoration: underline;
}

#updated-date {
    font-size: 14px;
    font-style: italic;
    color: var(--text-muted);
    align-self: flex-start;
    padding-top: 10px;
}

/* ========================================
   MAIN CONTENT
   ======================================== */

#main-content {
    display: contents;
}

/* ========================================
   FILTER ZONE - Grid with Named Areas
   ======================================== */

#filter-zone {
    grid-area: filters;
    display: grid;
    /* Month chart hidden - restore these lines to show it:
    grid-template-areas:
        "month-title month-title month-title"
        "month-chart month-chart month-chart"
        "publication author stacked";
    grid-template-rows: auto auto 1fr;
    */
    grid-template-areas:
        "zone-title zone-title zone-title"
        "publication author stacked";
    grid-template-rows: auto 1fr;
    grid-template-columns: var(--filter-col-width) var(--filter-col-width) calc(var(--filter-col-width) - 30px);
    gap: var(--gap-sm);
    padding: var(--gap-md);
    height: calc(100vh - var(--header-height));
    overflow: hidden;
    box-sizing: border-box;
    background-color: #fff;
}

/* Filter zone title spanning all columns */
#filter-zone-title {
    grid-area: zone-title;
    font-size: 22px;
    font-weight: 400;
    color: var(--primary-blue);
    margin-bottom: var(--gap-sm);
}

/* Chart title spanning all columns - hidden when month chart is hidden */
#month-title {
    grid-area: month-title;
    margin-bottom: 0;
}

/* Month chart spanning all columns */
#chart-month {
    grid-area: month-chart;
    margin-bottom: var(--gap-sm);
}

/* Filter columns */
#filter-col-publication {
    grid-area: publication;
    display: flex;
    flex-direction: column;
    min-height: 0;
    overflow: hidden;
}

#filter-col-author {
    grid-area: author;
    display: flex;
    flex-direction: column;
    min-height: 0;
    overflow: hidden;
}

#filter-col-stacked {
    grid-area: stacked;
    display: flex;
    flex-direction: column;
    gap: var(--gap-md);
    overflow-y: auto;
    overflow-x: hidden;
}

/* Chart containers within filter columns */
#chart-publication,
#chart-authors {
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}

#filter-col-publication > div,
#filter-col-author > div {
    height: 100%;
    display: flex;
    flex-direction: column;
}

/* ========================================
   RESULTS ZONE
   ======================================== */

#results-zone {
    grid-area: results;
    display: flex;
    flex-direction: column;
    height: calc(100vh - var(--header-height));
    overflow: hidden;
    background-color: var(--results-bg);
    margin: var(--gap-md);
    margin-left: 0;
}

#story-column {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

#story-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--gap-sm) var(--gap-lg);
    background-color: var(--results-bg);
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

#menu-info {
    display: flex;
    align-items: center;
    gap: var(--gap-sm);
}

#menu-info .story-count {
    font-size: 15px;
    font-weight: 600;
    color: #4a5568;
}

#menu-info .story-filters {
    font-size: 14px;
    font-weight: 400;
    color: var(--text-muted);
}

#filters {
    max-height: 120px;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    padding: 0 var(--gap-lg);
    flex-shrink: 0;
}

#filters:empty,
#filters.no-filters {
    max-height: 0;
    margin: 0;
    padding: 0;
}

#results-content {
    flex: 1;
    display: flex;
    overflow: hidden;
}

#filter-sidebar {
    width: 180px;
    flex-shrink: 0;
    padding: var(--gap-md);
    overflow-y: auto;
    border-right: 1px solid var(--border-color);
    background-color: #fff;
}

#chart-list {
    flex: 1;
    overflow-y: auto;
    padding: var(--gap-md) var(--gap-lg);
    background-color: var(--results-bg);
}

/* ========================================
   CHART TITLES & SCROLL CONTAINERS
   ======================================== */

.chart-title {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    font-size: 13px;
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: var(--gap-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.chart-title-text {
    /* inherits from .chart-title */
}

.chart-title-count {
    font-size: 12px;
    font-weight: 400;
    color: var(--text-muted);
    text-transform: none;
    letter-spacing: 0;
    min-width: 30px;
    text-align: right;
}

.chart-scroll {
    flex: 1;
    overflow-y: auto;
    min-height: 0;
}

/* Override chart-scroll for stacked column */
#filter-col-stacked .chart-scroll {
    flex: none;
    overflow: visible;
    min-height: auto;
    position: relative;
}

/* ========================================
   SEARCH INPUTS
   ======================================== */

.chart-search-container {
    position: relative;
    margin-bottom: var(--gap-sm);
    flex-shrink: 0;
}

.chart-search {
    width: 100%;
    padding: 6px 28px 6px 8px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 13px;
    font-family: inherit;
    box-sizing: border-box;
}

.chart-search:focus {
    outline: none;
    border-color: var(--accent-blue);
}

.chart-search::placeholder {
    color: var(--text-muted);
}

.chart-search-icon {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 18px;
    pointer-events: none;
}

.chart-search-clear {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 14px;
    padding: 0;
    line-height: 1;
    display: none;
}

.chart-search-clear:hover {
    color: var(--text-dark);
}

.chart-search:not(:placeholder-shown) ~ .chart-search-icon,
.chart-search-container.has-selection .chart-search-icon {
    display: none;
}

.chart-search:not(:placeholder-shown) ~ .chart-search-clear,
.chart-search-container.has-selection .chart-search-clear {
    display: block;
}

.chart-search.has-selection {
    border: 2px solid var(--primary-blue);
    background-color: #fff;
}

.chart-search-dropdown {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    border: 1px solid var(--border-color);
    border-top: none;
    border-radius: 0 0 4px 4px;
    max-height: 300px;
    overflow-y: auto;
    z-index: 1000;
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.chart-search-item {
    padding: 8px 10px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    border-bottom: 1px solid #eee;
}

.chart-search-item:last-child {
    border-bottom: none;
}

.chart-search-item:hover,
.chart-search-item.selected {
    background-color: rgba(43, 108, 176, 0.1);
}

.chart-search-item .item-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    padding-right: 10px;
}

.chart-search-item .item-count {
    color: var(--text-muted);
    font-size: 12px;
    flex-shrink: 0;
}

/* ========================================
   DC.JS CHART OVERRIDES
   ======================================== */

#chart-publication, 
#chart-mediaOutletType, 
#chart-bias, 
#chart-authors {
    font-weight: 500;
    font-size: 16px;
}