/* qtype_aifill — inline fill-in-the-blank styles */

.qtype-aifill-text {
    line-height: 2.8;
}

/* Questions with only block-type blanks (paragraph/essay/sentence/long) don't
   need the tall inline-input line-height — use normal prose spacing. */
.qtype-aifill-text-block {
    line-height: 1.65;
}

.qtype-aifill-text-block p,
.qtype-aifill-text-block ul,
.qtype-aifill-text-block ol {
    margin-bottom: 0.6rem;
}

.qtype-aifill-text-block li {
    margin-bottom: 0.15rem;
}

.qtype-aifill-text-block hr {
    margin: 0.9rem 0;
}

.qtype-aifill-blank {
    display: inline-block;
    border: 1px solid #6c757d;
    border-radius: 4px;
    padding: 2px 6px;
    font-size: 1em;
    line-height: 1.0;
    vertical-align: middle;
    background: #fff;
    min-width: 80px;
}

.qtype-aifill-blank:focus {
    outline: 2px solid #0d6efd;
    border-color: #0d6efd;
}

.qtype-aifill-blank[readonly] {
    background: #f8f9fa;
    cursor: default;
}

.qtype-aifill-correct {
    border-color: #198754 !important;
    background: #d1e7dd !important;
}

.qtype-aifill-incorrect {
    border-color: #dc3545 !important;
    background: #f8d7da !important;
}

.qtype-aifill-feedback {
    margin-top: 0.75em;
    padding: 0.75em 1em;
    background: #f0f4ff;
    border-left: 4px solid #0d6efd;
    border-radius: 4px;
    font-size: 0.95em;
}

/* <br> tags in question text are replaced with this spacer span by the renderer.
   Using a span (not div) avoids breaking <p> tags — browsers auto-close <p> on <div>.
   display:block is applied via CSS so it still takes up vertical space. */
.qtype-aifill-br-spacer {
    display: block;
    height: 1.2em;
}

/* Hide the spacer that follows a block-type blank — those blanks handle their own spacing. */
.qtype-aifill-sentence-wrap + .qtype-aifill-br-spacer,
.qtype-aifill-blank-long + .qtype-aifill-br-spacer,
.qtype-aifill-paragraph-wrap + .qtype-aifill-br-spacer {
    display: none;
}


.qtype-aifill-sentence-arrow {
    display: inline-block;
    margin-right: 0.4em;
    color: #6c757d;
    vertical-align: middle;
}

.qtype-aifill-blank-sentence.form-control {
    display: inline-block;
    width: 60%;
    vertical-align: middle;
}

.qtype-aifill-blank-long {
    /* layout (display/width) set via inline style in renderer */
    /* background/border/border-radius come from Bootstrap .form-control */
    padding: 2px 6px;
    font-size: 1em;
}

.qtype-aifill-blank-long:focus {
    outline: 2px solid #0d6efd;
    border-color: #0d6efd;
}

.qtype-aifill-blank-long[readonly] {
    background: #f8f9fa;
    cursor: default;
}

/* [[PARAGRAPH]] — full-width writing box with comfortable prose spacing. */
.qtype-aifill-paragraph-wrap {
    width: 100%;
    max-width: 820px;
}

.qtype-aifill-blank-paragraph.form-control {
    width: 100%;
    min-height: 9.5em;
    resize: vertical;
    font-size: 1em;
    line-height: 1.7;
    padding: 0.65em 0.85em;
    background: #fff;
    border: 1px solid #c3cad3;
    border-radius: 8px;
}

.qtype-aifill-blank-essay.form-control {
    width: 100%;
    max-width: 820px;
    min-height: 200px;
    resize: vertical;
    font-size: 1em;
    line-height: 1.7;
    padding: 0.65em 0.85em;
    background: #fff;
    border: 1px solid #c3cad3;
    border-radius: 8px;
    margin-top: 0.5em;
}

.qtype-aifill-blank-paragraph.form-control:focus,
.qtype-aifill-blank-essay.form-control:focus {
    outline: none;
    border-color: #0d6efd;
    box-shadow: 0 0 0 3px rgba(13, 110, 253, 0.15);
}

.qtype-aifill-blank-paragraph[readonly],
.qtype-aifill-blank-essay[readonly] {
    background: #f8f9fa;
    cursor: default;
}

.qtype-aifill-essay-wrap {
    width: 100%;
    max-width: 820px;
}

/* Word counter sits tucked under the right edge of the writing box. */
.qtype-aifill-paragraph-wrap .qtype-aifill-wordcount,
.qtype-aifill-essay-wrap .qtype-aifill-wordcount {
    text-align: right;
    font-size: 0.85em;
}

.qtype-aifill-syntaxguide {
    font-size: 0.9em;
    margin-bottom: 1em;
}

.qtype-aifill-syntaxguide code {
    background: rgba(0,0,0,.07);
    padding: 1px 4px;
    border-radius: 3px;
}

/* Two-column layout: writing area (left) + chart/image (right).
   Wrap question text in <div class="qtype-aifill-split"> with two
   <div class="qtype-aifill-split-col"> children — see lang help for usage. */
.qtype-aifill-split {
    display: flex;
    gap: 24px;
    align-items: stretch;
    flex-wrap: wrap;
    margin: 0.5em 0;
}

.qtype-aifill-split-col {
    flex: 1 1 280px;
    min-width: 280px;
    display: flex;
    flex-direction: column;
}

.qtype-aifill-split-col img {
    max-width: 100%;
    height: auto;
}

/* Writing column: stretch the answer textarea to match the image column's height
   (align-items:stretch on the parent gives both columns equal height; this chain
   propagates that height down to the actual textarea). */
.qtype-aifill-split-col .qtype-aifill-lines {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding-top: 0.2em;
}

.qtype-aifill-split-col .qtype-aifill-sentence-wrap {
    flex: 1;
    display: flex;
    margin: 0;
}

.qtype-aifill-split-col .qtype-aifill-sentence-wrap textarea {
    flex: 1;
    width: 100%;
    margin: 0;
}

/* ── Translation VN→EN feedback ─────────────────────────────────────────── */

.qtype-aifill-translation-feedback .qtype-aifill-tr-card {
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    margin-bottom: 12px;
    overflow: hidden;
    background: #fff;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.06);
}

.qtype-aifill-tr-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 8px 14px;
    background: #f8fafc;
    border-bottom: 1px solid #e2e8f0;
    font-size: 0.95em;
}

.qtype-aifill-tr-badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 999px;
    font-size: 0.82em;
    font-weight: 600;
    white-space: nowrap;
}

.qtype-aifill-tr-badge-good { background: #dcfce7; color: #166534; }
.qtype-aifill-tr-badge-mid  { background: #fef9c3; color: #854d0e; }
.qtype-aifill-tr-badge-bad  { background: #fee2e2; color: #991b1b; }

.qtype-aifill-tr-body {
    padding: 10px 14px 12px;
}

.qtype-aifill-tr-label {
    font-weight: 600;
    font-size: 0.82em;
    color: #64748b;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin-bottom: 4px;
    margin-right: 6px;
}

.qtype-aifill-tr-student {
    color: #475569;
    margin-bottom: 10px;
    padding-bottom: 8px;
    border-bottom: 1px dashed #e2e8f0;
}

.qtype-aifill-tr-student .qtype-aifill-tr-label {
    display: inline;
}

.qtype-aifill-tr-error {
    padding: 6px 0 6px 10px;
    border-left: 3px solid #e2e8f0;
    margin-bottom: 6px;
}

.qtype-aifill-tr-error-line {
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 6px;
}

.qtype-aifill-tr-chip {
    display: inline-block;
    padding: 1px 8px;
    border-radius: 999px;
    font-size: 0.75em;
    font-weight: 700;
    white-space: nowrap;
    letter-spacing: 0.02em;
}

.qtype-aifill-tr-chip-grammar      { background: #dbeafe; color: #1d4ed8; }
.qtype-aifill-tr-chip-collocation  { background: #ede9fe; color: #6d28d9; }
.qtype-aifill-tr-chip-wordchoice   { background: #ffedd5; color: #c2410c; }
.qtype-aifill-tr-chip-naturalness  { background: #ccfbf1; color: #0f766e; }
.qtype-aifill-tr-chip-vnthinking   { background: #ffe4e6; color: #be123c; }
.qtype-aifill-tr-chip-vocab        { background: #fef9c3; color: #854d0e; }
.qtype-aifill-tr-chip-other        { background: #f1f5f9; color: #475569; }

.qtype-aifill-tr-wrong {
    color: #b91c1c;
    text-decoration: line-through;
    text-decoration-thickness: 1.5px;
}

.qtype-aifill-tr-arrow {
    color: #94a3b8;
    font-weight: 700;
}

.qtype-aifill-tr-fix {
    color: #15803d;
    font-weight: 600;
}

.qtype-aifill-tr-why {
    color: #64748b;
    font-size: 0.85em;
    margin-top: 2px;
}

.qtype-aifill-tr-praise {
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    border-radius: 8px;
    padding: 6px 10px;
    margin-top: 8px;
    color: #166534;
    font-size: 0.9em;
}

.qtype-aifill-tr-correction {
    margin-top: 10px;
    background: #f0fdf4;
    border-left: 4px solid #22c55e;
    border-radius: 0 8px 8px 0;
    padding: 8px 12px;
}

.qtype-aifill-tr-correction .qtype-aifill-tr-label {
    color: #15803d;
}

.qtype-aifill-tr-correction-text {
    color: #14532d;
    font-style: italic;
    font-size: 1.02em;
    line-height: 1.5;
}

.qtype-aifill-tr-overall {
    background: #eff6ff;
    border: 1px solid #bfdbfe;
    border-radius: 8px;
    padding: 8px 12px;
    margin-top: 4px;
    color: #1e3a5f;
}