/* Type I & Type II Errors — interleaved question module.
   Shares the visual language of the other Journal Club apps. */

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
    padding: 10px;
}

.container {
    max-width: 100%;
    margin: 0 auto;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 20px;
}

/* ---- Header ---- */
.main-header {
    text-align: center;
    margin-bottom: 24px;
    padding-bottom: 18px;
    border-bottom: 2px solid #e0e0e0;
}

.main-header h1 { font-size: 1.8rem; color: #232D4B; margin-bottom: 10px; }
.main-header h2 { font-size: 1.3rem; color: #E57200; margin-bottom: 10px; }
.attribution { font-size: 1rem; color: #666; margin-top: 10px; }
.date { font-size: 0.9rem; color: #888; margin-top: 5px; }

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 18px;
    padding-bottom: 15px;
    border-bottom: 2px solid #e0e0e0;
    flex-wrap: wrap;
    gap: 12px;
}

.page-header h1 { font-size: 1.4rem; color: #232D4B; flex: 1; min-width: 200px; }

.back-link {
    color: #E57200;
    text-decoration: none;
    font-size: 0.95rem;
    padding: 8px 12px;
    border: 1px solid #E57200;
    border-radius: 4px;
    transition: background-color 0.2s;
    white-space: nowrap;
}

.back-link:hover { background-color: #E57200; color: white; }

/* ---- Progress indicator ---- */
.step-indicator {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin: 4px 0 18px;
    flex-wrap: wrap;
}

.step-dot {
    width: 30px;
    height: 6px;
    border-radius: 3px;
    background: #e0e0e0;
}

.step-dot.active { background: #E57200; }
.step-dot.done { background: #232D4B; }

/* ---- Intro / module landing ---- */
.intro {
    text-align: center;
    margin-bottom: 24px;
    font-size: 1rem;
    color: #555;
    padding: 0 10px;
}

.format-list {
    max-width: 640px;
    margin: 0 auto 24px;
    padding: 18px 22px;
    background: #f8f9fa;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
}

.format-list ol { margin: 8px 0 0 20px; }
.format-list li { margin-bottom: 6px; }

/* ---- QR code card ---- */
.qr-card {
    max-width: 320px;
    margin: 0 auto 26px;
    padding: 20px 20px 16px;
    text-align: center;
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.qr-title { font-size: 1.15rem; color: #232D4B; margin-bottom: 14px; }
.qr-img { width: 230px; height: 230px; max-width: 100%; display: block; margin: 0 auto; }
.qr-caption { font-size: 0.92rem; color: #555; margin-top: 12px; }
.qr-url { font-size: 0.8rem; color: #888; word-break: break-all; margin-top: 2px; }

/* ---- Info box ---- */
.info-box {
    background-color: #e3f2fd;
    border-left: 4px solid #2196F3;
    padding: 12px 15px;
    margin-bottom: 15px;
    border-radius: 4px;
}

.info-box p { margin: 0; font-size: 0.95rem; }

/* ---- Quiz styles ---- */
.question-block {
    background-color: #f8f9fa;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 18px;
}

.question-prompt {
    font-weight: 600;
    font-size: 1.08rem;
    margin-bottom: 14px;
    color: #232D4B;
}

.options-list { display: flex; flex-direction: column; gap: 8px; }

.option-label {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 11px 13px;
    border: 1px solid transparent;
    border-radius: 6px;
    cursor: pointer;
    background: #fff;
    transition: background-color 0.15s;
}

.option-label:hover { background-color: #eef1f4; }
.option-label input[type="radio"] { margin-top: 5px; accent-color: #E57200; }

.option-label.correct-option { background-color: #e8f5e9; border-color: #66bb6a; }
.option-label.incorrect-option { background-color: #fce4ec; border-color: #ef5350; }

.feedback {
    margin-top: 14px;
    padding: 12px 14px;
    border-radius: 6px;
    font-size: 0.95rem;
    line-height: 1.5;
}

.feedback-correct { background-color: #e8f5e9; border-left: 4px solid #66bb6a; color: #2e7d32; }
.feedback-incorrect { background-color: #fce4ec; border-left: 4px solid #ef5350; color: #c62828; }

.quiz-error { color: #c62828; font-weight: 500; margin-top: 10px; }

/* ---- Interactive reveal area ---- */
.interactive {
    border-top: 2px dashed #e0e0e0;
    margin-top: 6px;
    padding-top: 18px;
}

.interactive[hidden] { display: none; }

.interactive-heading {
    font-size: 1.1rem;
    color: #232D4B;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.interactive-heading::before {
    content: '▶';
    color: #E57200;
    font-size: 0.8rem;
}

.interactive-intro {
    font-size: 0.95rem;
    color: #444;
    margin-bottom: 12px;
}

.interactive-note {
    font-size: 0.9rem;
    color: #555;
    background: #fff8f0;
    border-left: 3px solid #E57200;
    padding: 8px 12px;
    border-radius: 4px;
    margin-top: 12px;
    min-height: 1.2em;
}

/* Colored inline text keyed to the shaded regions */
.ink-alpha { color: #c15400; }
.ink-beta { color: #0072B2; }
.ink-power { color: #2e7d32; }

/* ---- Canvas ---- */
.canvas-container {
    width: 100%;
    margin: 12px 0;
    background-color: white;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 8px;
    overflow: hidden;
}

.canvas-container canvas { width: 100%; display: block; }

/* ---- Legend ---- */
.legend {
    display: flex;
    justify-content: center;
    gap: 18px;
    margin: 6px 0;
    font-size: 0.85rem;
    flex-wrap: wrap;
}

.legend-item { display: flex; align-items: center; gap: 6px; }
.legend-swatch { width: 14px; height: 14px; border-radius: 3px; display: inline-block; }

/* ---- Controls ---- */
.controls {
    margin: 14px 0;
    padding: 14px 15px;
    background-color: #f8f9fa;
    border-radius: 8px;
}

.control-group {
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.control-group:last-child { margin-bottom: 0; }

.control-group label { font-weight: 500; min-width: 160px; font-size: 0.95rem; }

.control-group input[type="range"] {
    flex: 1;
    min-width: 180px;
    height: 8px;
    border-radius: 5px;
    background: #ddd;
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}

.control-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none; appearance: none;
    width: 24px; height: 24px; border-radius: 50%;
    background: #E57200; cursor: pointer;
    border: 2px solid white;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.control-group input[type="range"]::-moz-range-thumb {
    width: 24px; height: 24px; border-radius: 50%;
    background: #E57200; cursor: pointer;
    border: 2px solid white;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.control-group > span {
    font-weight: 600;
    color: #E57200;
    min-width: 60px;
    text-align: right;
    font-size: 1rem;
}

/* Segmented button group (e.g. the α selector) */
.seg { display: flex; gap: 8px; flex-wrap: wrap; }
.seg .btn { min-width: 62px; min-height: 40px; padding: 8px 16px; }

/* ---- Parameters display ---- */
.params-display {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin: 14px 0;
    flex-wrap: wrap;
}

.param-box {
    text-align: center;
    padding: 12px 18px;
    border-radius: 8px;
    border: 1px solid #e0e0e0;
    background: #f8f9fa;
    min-width: 130px;
    flex: 1;
}

.param-box .param-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.4px;
    color: #888;
    margin-bottom: 4px;
}

.param-box .param-value { font-size: 1.4rem; font-weight: 700; color: #232D4B; }

/* ---- False-positive grid (Q1) ---- */
.fp-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    margin: 16px 0;
}

.fp-card {
    text-align: center;
    border-radius: 6px;
    padding: 10px 6px;
    border: 2px solid #e0e0e0;
    background: #fafafa;
    transition: all 0.25s;
}

.fp-card.significant { border-color: #D55E00; background-color: #fff3e0; }
.fp-card .fp-label { font-size: 0.72rem; color: #888; margin-bottom: 2px; }
.fp-card .fp-pvalue { font-size: 0.92rem; font-weight: 600; color: #333; }
.fp-card.significant .fp-pvalue { color: #D55E00; }

/* ---- Buttons ---- */
.buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 18px;
    justify-content: center;
    align-items: center;
}

.btn {
    padding: 12px 24px;
    font-size: 1rem;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s;
    min-height: 44px;
    min-width: 120px;
    text-align: center;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-primary { background-color: #E57200; color: white; }
.btn-primary:hover { background-color: #d16500; transform: translateY(-1px); box-shadow: 0 2px 6px rgba(0,0,0,0.2); }
.btn-secondary { background-color: #6c757d; color: white; }
.btn-secondary:hover { background-color: #5a6268; transform: translateY(-1px); }

/* ---- Debrief ---- */
.truth-table {
    border-collapse: collapse;
    margin: 18px auto;
    width: 100%;
    max-width: 560px;
    font-size: 0.95rem;
}

.truth-table th, .truth-table td {
    border: 1px solid #ccc;
    padding: 12px 10px;
    text-align: center;
    vertical-align: middle;
}

.truth-table thead th { background: #232D4B; color: #fff; }
.truth-table .rowhead { background: #f0f0f0; font-weight: 600; }
.truth-table .correct-cell { background: #e8f5e9; color: #2e7d32; font-weight: 600; }
.truth-table .type1-cell { background: #fff3e0; color: #c15400; font-weight: 600; }
.truth-table .type2-cell { background: #e3f0f7; color: #0072B2; font-weight: 600; }

.takeaways { max-width: 640px; margin: 20px auto; }
.takeaways li { margin-bottom: 10px; }
.takeaways strong { color: #232D4B; }

.score-line {
    text-align: center;
    font-size: 1.1rem;
    font-weight: 600;
    color: #232D4B;
    margin: 10px 0 4px;
}

/* ---- Responsive ---- */
@media (min-width: 768px) {
    body { padding: 20px; }
    .container { max-width: 860px; padding: 30px; }
    .main-header h1 { font-size: 2.1rem; }
    .page-header h1 { font-size: 1.7rem; }
    .fp-grid { grid-template-columns: repeat(5, 1fr); }
}

@media print {
    body { background-color: white; }
    .buttons, .controls { display: none; }
}