/**
 * LumorowLMS — CELPIP Writing frontend styles
 * Two-pane layout matching CELPIP's UI; brand orange via shared.css vars.
 */

.llmsb-cpw-block {
    background: #fff;
    border: 1px solid var(--llmsb-border);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0,0,0,.05);
    margin-bottom: 2rem;
}

/* ── Header ──────────────────────────────────── */
.llmsb-cpw-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #f3f4f6;
    border-bottom: 1px solid var(--llmsb-border);
    padding: 12px 18px;
    gap: 16px;
}
.llmsb-cpw-title {
    color: var(--llmsb-dark);
    font-weight: 600;
    font-size: 1rem;
}
.llmsb-cpw-timer {
    color: var(--llmsb-mid);
    font-size: .92rem;
    white-space: nowrap;
}
.llmsb-cpw-timer-val { color: var(--llmsb-dark); font-weight: 700; }
.llmsb-cpw-timer--low .llmsb-cpw-timer-val { color: var(--llmsb-primary); }
.llmsb-cpw-timer--up .llmsb-cpw-timer-val  { color: var(--llmsb-wrong); }
.llmsb-cpw-timer--up .llmsb-cpw-timer::after {
    content: ' — time\'s up, finish when ready';
    color: var(--llmsb-wrong);
    font-style: italic;
    font-weight: 500;
}

/* ── Two-pane layout ─────────────────────────── */
.llmsb-cpw-layout {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 0;
}
.llmsb-cpw-source {
    background: #fff;
    padding: 20px 22px;
    border-right: 1px solid var(--llmsb-border);
    line-height: 1.65;
    color: var(--llmsb-dark);
    font-size: .95rem;
}
.llmsb-cpw-prompt {
    background: var(--llmsb-primary-pale);
    padding: 20px 22px;
    line-height: 1.6;
    color: var(--llmsb-dark);
    font-size: .95rem;
}

/* ── Instruction pill (matches CELPIP info icon) ─ */
.llmsb-cpw-instruction {
    color: var(--llmsb-primary-dk);
    font-weight: 600;
    font-size: 1rem;
    margin: 0 0 14px;
    position: relative;
    padding-left: 26px;
    line-height: 1.45;
}
.llmsb-cpw-instruction::before {
    content: 'i';
    position: absolute;
    left: 0;
    top: 1px;
    width: 18px;
    height: 18px;
    background: var(--llmsb-primary);
    color: #fff;
    border-radius: 50%;
    text-align: center;
    line-height: 18px;
    font-style: italic;
    font-family: serif;
    font-weight: 700;
    font-size: .8rem;
}
.llmsb-cpw-explain-instruction {
    margin-top: 18px;
    padding-top: 14px;
    border-top: 1px solid var(--llmsb-border);
}

/* ── Source content ──────────────────────────── */
.llmsb-cpw-survey-title {
    font-weight: 700;
    color: var(--llmsb-dark);
    margin-bottom: 8px;
}
.llmsb-cpw-source-body p { margin: 0 0 .85rem; }
.llmsb-cpw-source-body p:last-child { margin-bottom: 0; }

/* ── Task 1 bullets ──────────────────────────── */
.llmsb-cpw-bullets {
    list-style: disc;
    padding-left: 22px;
    margin: 0 0 18px;
    color: var(--llmsb-dark);
}
.llmsb-cpw-bullets li { margin-bottom: 6px; line-height: 1.5; }

/* ── Task 2 radio options ────────────────────── */
.llmsb-cpw-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin: 0 0 4px;
}
.llmsb-cpw-option {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 14px;
    border: 2px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    transition: background .15s ease, border-color .15s ease;
    background: rgba(255,255,255,.4);
}
.llmsb-cpw-option:hover {
    background: #fff;
    border-color: var(--llmsb-primary);
}
.llmsb-cpw-option.selected {
    background: #fff;
    border-color: var(--llmsb-primary);
    box-shadow: 0 1px 2px rgba(0,0,0,.05);
}
.llmsb-cpw-option input[type="radio"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}
.llmsb-cpw-radio {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 2px solid #94a3b8;
    flex-shrink: 0;
    box-sizing: border-box;
    background: #fff;
    position: relative;
    margin-top: 3px;
    transition: border-color .15s ease;
}
.llmsb-cpw-option.selected .llmsb-cpw-radio {
    border-color: var(--llmsb-primary);
}
.llmsb-cpw-option.selected .llmsb-cpw-radio::after {
    content: '';
    position: absolute;
    inset: 2px;
    background: var(--llmsb-primary);
    border-radius: 50%;
}
.llmsb-cpw-option-text { flex: 1 1 auto; line-height: 1.45; color: var(--llmsb-dark); }
.llmsb-cpw-option input[type="radio"]:focus-visible ~ .llmsb-cpw-radio {
    outline: 2px solid var(--llmsb-primary);
    outline-offset: 2px;
}

/* ── Textarea ────────────────────────────────── */
.llmsb-cpw-textarea {
    display: block;
    width: 100%;
    min-height: 280px;
    padding: 12px 14px;
    border: 1px solid var(--llmsb-border);
    border-radius: 6px;
    background: #fff;
    font: inherit;
    font-size: 1rem;
    line-height: 1.65;
    color: var(--llmsb-dark);
    resize: vertical;
    box-sizing: border-box;
    transition: border-color .15s ease, box-shadow .15s ease;
}
.llmsb-cpw-textarea:focus {
    outline: none;
    border-color: var(--llmsb-primary);
    box-shadow: 0 0 0 3px rgba(247,114,5,.15);
}
.llmsb-cpw-textarea:disabled {
    background: #f9fafb;
    color: var(--llmsb-muted);
    cursor: not-allowed;
}

/* ── Footer (word count + submit) ────────────── */
.llmsb-cpw-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
    background: #f9fafb;
    border-top: 1px solid var(--llmsb-border);
    gap: 14px;
    flex-wrap: wrap;
}
.llmsb-cpw-wc {
    color: var(--llmsb-mid);
    font-size: .9rem;
}
.llmsb-cpw-wc-val {
    font-weight: 700;
    color: var(--llmsb-mid);
    transition: color .15s ease;
}
.llmsb-cpw-wc-val.in-range { color: var(--llmsb-correct); }
.llmsb-cpw-wc-val.low      { color: var(--llmsb-primary); }
.llmsb-cpw-wc-val.over     { color: var(--llmsb-wrong); }
.llmsb-cpw-wc-target { color: var(--llmsb-muted); margin-left: 4px; }

.llmsb-cpw-submit-btn {
    appearance: none;
    background: linear-gradient(135deg, var(--llmsb-primary), var(--llmsb-primary-dk));
    color: #fff !important;
    border: 0;
    border-radius: 8px;
    padding: 10px 24px;
    font: inherit;
    font-size: .95rem;
    font-weight: 700;
    cursor: pointer;
    transition: opacity .15s ease, transform .15s ease;
    text-transform: uppercase;
    letter-spacing: .6px;
}
.llmsb-cpw-submit-btn:hover:not(:disabled)  { opacity: .9; }
.llmsb-cpw-submit-btn:active:not(:disabled) { transform: translateY(1px); }
.llmsb-cpw-submit-btn:disabled              { opacity: .45; cursor: not-allowed; }

/* ── Submitted confirmation ──────────────────── */
.llmsb-cpw-submitted[hidden] { display: none; }
.llmsb-cpw-submitted {
    background: #dcfce7;
    border-top: 2px solid #16a34a;
    padding: 18px 22px;
    color: #14532d;
}
.llmsb-cpw-submitted h3 {
    margin: 0 0 8px;
    color: #166534;
    font-size: 1.05rem;
}
.llmsb-cpw-submitted p { margin: 4px 0; }
.llmsb-cpw-submitted .ok   { color: #166534; font-weight: 700; }
.llmsb-cpw-submitted .warn { color: #b45309; font-weight: 700; }

/* When in submitted state, lift the timer pulse off the header */
.llmsb-cpw-submitted-state .llmsb-cpw-timer { color: var(--llmsb-muted); }

/* ── Responsive ──────────────────────────────── */
@media (max-width: 880px) {
    .llmsb-cpw-layout { grid-template-columns: 1fr; }
    .llmsb-cpw-source { border-right: 0; border-bottom: 1px solid var(--llmsb-border); }
    .llmsb-cpw-header { flex-wrap: wrap; }
}

@media (max-width: 520px) {
    .llmsb-cpw-source, .llmsb-cpw-prompt { padding: 16px 14px; }
    .llmsb-cpw-textarea { min-height: 220px; }
    .llmsb-cpw-footer { flex-direction: column; align-items: stretch; }
    .llmsb-cpw-submit-btn { width: 100%; }
}