/* ── Theme variables ─────────────────────────────────────────── */
:root {
    --topbar-bg:      #0e9aa7;
    --topbar-text:    #ffffff;
    --sidebar-bg:     #1a1a2e;
    --sidebar-text:   #e0e0e0;
    --main-bg:        #f0f2f5;
    --main-text:      #1a1a1a;
    --table-header-bg:#e4e8ed;
    --table-row-alt:  #f7f8fa;
    --table-border:   #cdd2d8;
    --cell-bg:        #ffffff;
    --input-bg:       #ffffff;
    --input-focus:    #007bff;
    --btn-bg:         #007bff;
    --btn-hover:      #0056b3;
    --context-bg:     #ffffff;
    --context-hover:  #f0f0f0;
    --row-index-bg:   #eef0f3;
    --footer-link:    #555;
    --border-radius:  6px;
    --search-border:  #f0c040;
}

body.dark {
    --topbar-bg:      #0a6e78;
    --topbar-text:    #ffffff;
    --sidebar-bg:     #0d0d1a;
    --sidebar-text:   #c9d1d9;
    --main-bg:        #161b22;
    --main-text:      #c9d1d9;
    --table-header-bg:#21262d;
    --table-row-alt:  #1a1f27;
    --table-border:   #30363d;
    --cell-bg:        #0d1117;
    --input-bg:       #0d1117;
    --input-focus:    #58a6ff;
    --btn-bg:         #1f6feb;
    --btn-hover:      #388bfd;
    --context-bg:     #21262d;
    --context-hover:  #30363d;
    --row-index-bg:   #21262d;
    --footer-link:    #58a6ff;
    --search-border:  #e3b341;
}

/* ── Footer links ────────────────────────────────────────────── */
.site-footer a {
    color: var(--footer-link);
    transition: color 0.2s;
}

.site-footer a:hover {
    color: var(--input-focus);
}

.site-footer .copyright {
    color: var(--main-text);
}

.site-footer {
    height: 70px;
}

/* ── Theme toggle button ─────────────────────────────────────── */
#themeToggle {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255,255,255,0.15);
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: 20px;
    color: var(--topbar-text);
    cursor: pointer;
    font-size: 1rem;
    padding: 4px 12px;
    transition: background 0.2s;
}

#themeToggle:hover {
    background: rgba(255,255,255,0.28);
}

/* ── Layout ──────────────────────────────────────────────────── */
body {
    background-color: var(--main-bg);
    color: var(--main-text);
    transition: background-color 0.25s, color 0.25s;
}

.topbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    background-color: var(--topbar-bg);
    color: var(--topbar-text);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    transition: background-color 0.25s;
}

.sidebar {
    position: fixed;
    top: 60px;
    left: 0;
    bottom: 0;
    width: 250px;
    background-color: var(--sidebar-bg);
    color: var(--sidebar-text);
    padding: 1rem;
    overflow-y: auto;
    transition: background-color 0.25s, color 0.25s;
}

/* ── Sidebar groups ──────────────────────────────────────────── */
.sidebar-group {
    margin-top: 1.25rem;
    padding-top: 0.75rem;
    border-top: 1px solid rgba(255,255,255,0.08);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.sidebar-group-label {
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.35);
    margin-bottom: 2px;
}

.sidebar .custom-file-upload {
    width: 100%;
    margin-top: 0;
    margin-right: 0;
    box-sizing: border-box;
    border-radius: var(--border-radius);
}

.sidebar button {
    width: 100%;
    margin-top: 0;
    text-align: left;
    border-radius: var(--border-radius);
}

/* ── Search / Options dialog ─────────────────────────────────── */
#searchDialog {
    border: 1px solid var(--search-border);
    border-radius: var(--border-radius);
    padding: 10px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

#searchDialog label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    color: var(--sidebar-text);
    cursor: pointer;
}

#searchInput {
    width: 100%;
    box-sizing: border-box;
    padding: 5px 8px;
    border-radius: var(--border-radius);
    border: 1px solid var(--table-border);
    background: var(--input-bg);
    color: var(--main-text);
    font-size: 0.85rem;
}

.search-actions {
    display: flex;
    gap: 8px;
}

.search-actions button {
    flex: 1;
    text-align: center;
}

/* Revision: 2026-04-13-rev3 – increased padding-bottom to fully clear fixed footer */
.main-content {
    margin-top: 60px;
    margin-left: 240px;
    padding: 1.5rem;
    padding-bottom: 80px;
    background-color: var(--main-bg);
    color: var(--main-text);
    height: calc(100vh - 60px - 80px);
    overflow-y: auto;
    transition: background-color 0.25s, color 0.25s;
}

.container {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 400px;
    max-width: 400px;
    margin: 1rem;
    padding: 2rem;
    box-shadow: 0 0 40px rgba(0, 0, 0, 0.2);
    border-radius: var(--border-radius);
    background: #ffffff;
}

h1 {
    color: var(--main-text);
    text-align: center;
}

form#uploadForm {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
    gap: 10px;
}

input[type="file"] {
    padding: 5px;
}

button {
    background-color: var(--btn-bg);
    color: #ffffff;
    padding: 6px 12px;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: background-color 0.2s;
}

    button:hover {
        background-color: var(--btn-hover);
    }
#result {
    margin-top: 20px;
    overflow-x: auto;
}

.csvTable,
.csvFillTable {
    border-collapse: collapse;
    width: max-content;
    table-layout: auto;
    font-family: Arial, sans-serif;
}

    /* Sticky header row 1 (column selectors) */
    .csvTable thead tr.column-selector-row th,
    .csvFillTable thead tr.column-selector-row th {
        position: sticky;
        top: 0;
        z-index: 3;
        background: var(--table-header-bg);
        border-bottom: 0px;
        height: 38px;
        min-height: 36px;
        box-sizing: border-box;
    }

    /* Sticky header row 2 (CSV header names) */
    .csvTable thead tr.header-row th,
    .csvFillTable thead tr.header-row th {
        position: sticky;
        top: 38px; /* 36px + 2px */
        z-index: 3;
        background: var(--table-header-bg);
        border-top: 0px;
        height: 38px;
        min-height: 38px;
        box-sizing: border-box;
    }

    /* Sticky leftmost column for headers and body */
    .csvTable th.row-index,
    .csvTable td.row-index,
    .csvFillTable th.row-index,
    .csvFillTable td.row-index {
        position: sticky;
        left: 0;
        z-index: 4;
        background: var(--row-index-bg);
    }

    /* Sticky intersection: top-left cell(s) */
    .csvTable thead tr.column-selector-row th.row-index,
    .csvFillTable thead tr.column-selector-row th.row-index,
    .csvTable thead tr.header-row th.row-index,
    .csvFillTable thead tr.header-row th.row-index {
        z-index: 5;
    }

    .csvTable thead th,
    .csvFillTable thead th {
        border: 1px solid var(--table-border);
        padding: 8px;
        text-align: left;
        font-weight: bold;
        cursor: pointer;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        min-width: 120px;
        max-width: 400px;
    }

    .csvTable td,
    .csvFillTable td {
        border: 1px solid var(--table-border);
        padding: 4px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        min-width: 120px;
        max-width: 400px;
    }

        .csvTable td input,
        .csvFillTable td input {
            width: 100%;
            border: none;
            background-color: transparent;
            padding: 4px;
            font-size: 14px;
            color: var(--main-text);
        }

            .csvTable td input:focus,
            .csvFillTable td input:focus {
                outline: 2px solid var(--input-focus);
                background-color: var(--input-bg);
            }

    .csvTable tbody tr:nth-child(even),
    .csvFillTable tbody tr:nth-child(even) {
        background-color: var(--table-row-alt);
    }

#saveBtn {
    display: block;
    margin: 20px auto;
    background-color: #28a745;
}

    #saveBtn:hover {
        background-color: #1e7e34;
    }

.custom-file-upload {
    display: inline-block;
    padding: 0px 12px;
    margin-top: 20px;
    margin-right: 10px;
    font-size: 14px;
    font-weight: 500;
    color: white;
    background-color: var(--btn-bg);
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: background-color 0.2s ease;
    height: 26px;
    line-height: 24px;
}

    .custom-file-upload:hover {
        background-color: var(--btn-hover);
    }

#csvContainer,
#previewContainer {
    overflow-x: auto;
    overflow-y: auto;
    width: 100%;
    max-height: 70vh;
    border: 1px solid var(--table-border);
}

#cancelEdit,
#saveCsv,
#createNew {
    margin-right: 10px;
}

/* Drag-fill enhancements now rely on natural sizing */

td.row-index, th.row-index {
    width: 20px;
    min-width: 20px;
    max-width: 20px;
    text-align: center;
    background-color: var(--row-index-bg);
    font-weight: bold;
    user-select: none;
}

.context-menu {
    position: absolute;
    z-index: 9999;
    background: var(--context-bg);
    border: 1px solid var(--table-border);
    list-style: none;
    padding: 5px 0;
    margin: 0;
    box-shadow: 2px 2px 6px rgba(0,0,0,0.2);
    width: 120px;
}

    .context-menu li {
        padding: 6px 12px;
        cursor: pointer;
    }

        .context-menu li:hover {
            background-color: var(--context-hover);
        }

.ad-feed {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: white;
    font-size: 0.85rem;
    text-align: left;
    line-height: 1.4;
    width: 250px;
}

.ad-scroll-container {
    overflow: hidden;
    white-space: nowrap;
    width: 20%;
    height: 3em;
    position: absolute;
    left: 15px;
}

.ad-scroll {
    display: inline-block;
    padding-left: 100%;
    animation: scroll-left 15s linear infinite;
}

@keyframes scroll-left {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(-100%);
    }
}

.ad-feed a {
    color: yellow;
    text-decoration: underline;
    font-weight: bold;
    display: block;
    margin-top: 4px;
}

@media (max-width: 600px) {
    .ad-feed {
        display: none;
    }
}

.selected-column {
    background-color: #fff5cc !important;
    border: 2px dashed orange;
}

.selected-row {
    background-color: #e6f7ff !important;
    outline: 2px solid #007acc;
}

.flash {
    background-color: yellow !important;
    transition: background-color 0.5s ease;
}

th.flash, td.flash {
    background-color: yellow !important;
}

#colContextMenu .menu-item {
    display: flex;
    align-items: center;
    padding: 6px 12px;
    cursor: pointer;
    gap: 8px;
}

    #colContextMenu .menu-item:hover {
        background-color: var(--context-hover);
    }

    #colContextMenu .menu-item span.icon {
        width: 20px;
        text-align: center;
        font-size: 16px;
    }

    #colContextMenu .menu-item span.label {
        flex-grow: 1;
    }

    #colContextMenu .menu-item span.shortcut {
        color: var(--footer-link);
        font-size: 12px;
    }

/* Hidden by default */
.dropdown-arrow {
    opacity: 0;
    transition: opacity 0.2s ease;
    margin-left: 4px;
    font-size: 12px;
    color: var(--footer-link);
}

/* Fade in on hover */
th:hover .dropdown-arrow {
    opacity: 1;
}

.selected-row-index {
    background: #007acc !important;
}

.selected-column-index {
    background: orange !important;
}

td.selected-cell {
    outline: 2px solid darkGreen;
}

td.selected-multicell {
    outline: 2px solid darkGreen;
    background: lightGreen !important;
}

.fill-handle {
    position: absolute;
    width: 8px;
    height: 8px;
    background-color: darkblue;
    right: 0;
    bottom: 0;
    cursor: crosshair;
    z-index: 1000;
    border-radius: 50%;
}

td {
    position: relative; /* so fill-handle positions relative to cell */
}

.fill-preview {
    background: rgba(0, 150, 0, 0.2) !important;
}

.move-hotzone {
    position: absolute;
    width: 7px;
    height: 7px;
    background-color: red; /* test: bright red square */
    cursor: grab;
    z-index: 9999;
}

.move-preview-box {
    position: absolute;
    border: 2px dashed rgba(0, 0, 0, 0.7);
    pointer-events: none;
    z-index: 9999;
}

/* Optional: remove default input border when editing inside selected cell */
td.selected-cell input {
    border: none;
    outline: none;
    background-color: transparent;
}

/* Only highlight cells at intersection of selected row+column */
td.selected-intersection {
    background-color: #73c1c5 !important;
}

.selected-header {
    border: 1px solid #ccc;
}

.main-content a {
    color: var(--footer-link);
    transition: color 0.2s;
}

.main-content a:hover {
    color: var(--input-focus);
}