:root {
    --background:   #f5f7fb;
    --surface:      #ffffff;
    --border:       #d9e0ec;
    --text:         #1f2937;
    --muted:        #6b7280;
    --accent:       #961704;;
    --accent-light: #dbeafe;
    --shadow:       0 2px 10px rgba(0,0,0,.06);
}

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

body {
    font-family:
        "Segoe UI",
        Arial,
        sans-serif;
    background: var(--background);
    color: var(--text);
}

header {
    background: #961704;
    color:      white;
    padding:    1rem;
}

header h1 {
    font-size: 1rem;
    margin-bottom: .2rem;
}

header p {
    opacity: .9;
}

main {
    max-width: 1700px;
    margin: auto;
    padding: 2rem;
}


/* Loader */
.loader {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: var(--shadow);
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.loader label {
    display: block;
    font-weight: 600;
    margin-bottom: .8rem;
}

.loader-row {
    display: flex;
    gap: 1rem;
}

.loader-row input {
    flex: 1;
    padding: .8rem 1rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
}

.loader-row button {
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 0 1.5rem;
    font-size: 1rem;
    cursor: pointer;
}

.loader-row button:hover {
    background: #8a1503;;
}

#status {
    margin-top: 1rem;
    color: var(--muted);
}


/* Corpus overview*/
.dashboard {
    margin-bottom: 2rem;
}

.dashboard > h2 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(8, minmax(180px,1fr));
    gap: 1.2rem;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: var(--shadow);
    padding: 1rem;
    text-align: center;
}

.card h2 {
    color: black;
    font-size: 1.5rem;
    margin-bottom: .2rem;
}

.card p {
    color: var(--muted);
    font-size: .95rem;
}


/* Diagrams */
.chart-section {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: var(--shadow);
    padding: 2rem;
}

.tabs {
    display: flex;
    gap: .5rem;
    margin-bottom: 2rem;
}

.tab {
    padding: .8rem 1.4rem;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: white;
    cursor: pointer;
    font-size: 1rem;
}

.tab.active {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
}

.chart-header{
    display:flex;
    justify-content:space-between;
    align-items:center;
    margin-bottom:0rem;
}

.chart-header h2{
    margin:0;
    font-size:1.5rem;
}

.chart-panel {
    display: grid;
    grid-template-columns: 43% 52%;
    gap: 2rem;
    align-items: stretch;
}

.chart-box{
    background:white;
    border:1px solid var(--border);
    border-radius:12px;
    padding:1.5rem;
    display:flex;
    flex-direction:column;
    min-height:520px;
}

.chart-box:first-child{
    align-items:center;
}

#languageDonut {
    width: 100% !important;
    max-width: 360px;
    height: 360px !important;
    margin: 0 auto;
    display: block;
}

#languageBar {
    width: calc(100% - 25px);
    height: 450px !important;
    margin-right: 25px;
}

/* Responsive */

@media (max-width: 1500px) {

    .card-grid {
        grid-template-columns: repeat(4,1fr);
    }

}

@media (max-width: 1000px) {
    .chart-panel {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 700px) {
    main {
        padding: 1rem;
    }

    .loader-row {
        flex-direction: column;
    }

    .card-grid {
        grid-template-columns: 1fr;
    }
}

/* ===========================================
   Sections
=========================================== */

.table-section,
.explorer-section{
    margin-top:2rem;
    padding:2rem;
    background:var(--surface);
    border:1px solid var(--border);
    border-radius:12px;
    box-shadow:var(--shadow);
}

.table-section h2,
.explorer-section h2{
    margin:0 0 1.5rem;
}

/* ===========================================
   Tables
=========================================== */

table{
    width:100%;
    border-collapse:collapse;
}

thead{
    background:#f5f7fb;
}

th{
    text-align:left;
    padding:.5rem;
    border-bottom:2px solid var(--border);
}

td{
    padding:.5rem;
    border-bottom:1px solid var(--border);
}

tbody tr:hover{
    background:#f8fbff;
}

/* ===========================================
   Controls & Pagination
=========================================== */

.table-controls,
.language-pagination{
    display:flex;
    justify-content:center;
    align-items:center;
    gap:1rem;
    margin-top:1rem;
}

.table-controls button,
.language-pagination button{
    background:var(--accent);
    color:white;
    border:none;
    border-radius:8px;
    padding:.7rem 1.3rem;
    cursor:pointer;
    transition:.2s;
}

.table-controls button:hover:not(:disabled),
.language-pagination button:hover:not(:disabled){
    filter:brightness(.95);
}

.table-controls button:disabled,
.language-pagination button:disabled{
    opacity:.45;
    cursor:default;
}

/* ===========================================
   Language explorer
=========================================== */

#languageSearch{
    width:100%;
    padding:.7rem 1rem;
    margin-bottom:1.5rem;
    border:1px solid var(--border);
    border-radius:8px;
    font-size:1rem;
}

.language-card{
    margin-bottom:0.4rem;
    border:1px solid var(--border);
    border-radius:10px;
    overflow:hidden;
}

.language-header{
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:0.4rem 1.25rem;
    background:#f8f9fc;
    cursor:pointer;
}

.language-header:hover{
    background:#eef4ff;
}

.language-title{
    display:flex;
    align-items:center;
    gap:.6rem;
    font-weight:400;
}

.language-summary,
.page-info{
    color:var(--muted);
}

.language-content{
    padding:1rem 1.25rem;
}

.page-info{
    min-width:160px;
    text-align:center;
}

/* ===========================================
   Occurence side panel
=========================================== */

#occurrencePanel {
    position: fixed;
    top: 0;
    right: 0;

    width: 450px;
    height: 100vh;

    background: white;

    box-shadow: -4px 0 20px rgba(0,0,0,0.2);

    padding: 25px;

    overflow-y: auto;

    z-index: 1000;
}

#occurrencePanel.hidden {
    display: none;
}

.occurrence-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}


#closeOccurrences {
    border: none;
    background: transparent;
    font-size: 20px;
    cursor: pointer;
}

#occurrenceList {
    line-height: 1.6;
}

.occurrence-navigation {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    padding: 1rem 2rem;
    background: transparent;
}

.occurrence-navigation button {
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 0.6rem 1.2rem;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.2s;
}

.occurrence-navigation button:hover {
    background: #7a1203; 
}

.occurrence-navigation button:disabled {
    background: #bdbdbd;
    cursor: not-allowed;
}

#occPageInfo {
    font-weight: 600;
    min-width: 120px;
    text-align: center;
}

/* Side panel */
#occurrencePanel{
    position:fixed;
    right:0;
    top:0;
    width:900px;
    height:100vh;
    background:white;
    box-shadow:-4px 0 12px rgba(0,0,0,.2);

    display:flex;
    flex-direction:column;
}

.hidden{
    display:none !important;
}

/* List */
#occurrenceList{
    flex:1;
    overflow-y:auto;
    padding:20px;
    font-family:Consolas, monospace;
}

/* One occurrence */
.occurrence-row{
    display:grid;
    grid-template-columns:1fr auto 1fr;
    align-items:center;
    gap:10px;
    padding:4px 0;
    border-bottom:1px solid #eee;
}

/* Left context */
.left-context{
    text-align:right;
    white-space:nowrap;
    overflow:hidden;
    text-overflow:ellipsis;
}

/* Keyword */
.keyword{
    font-weight:bold;
    color:#961704;
    white-space:nowrap;
    min-width:110px;
    text-align:center;
}

/* Right context */
.right-context{
    text-align:left;
    white-space:nowrap;
    overflow:hidden;
    text-overflow:ellipsis;
}

.lemma-link {
    background: none;
    border: none;

    color: inherit;
    font: inherit;

    cursor: pointer;

    padding: 0;
}

.lemma-link:hover {
    color: var(--accent);
    text-decoration: underline;
}

.lemma-link:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}