/* ========================================
   THESIS LAB
   Uses the site's colour variables so it matches the rest of Fab Path.
======================================== */

.lab-page {
    max-width: 1080px;
    margin: 0 auto;
    padding: 28px 20px 80px;
}

.lab-intro {
    margin: 14px 0 18px;
}

.lab-title {
    font-size: clamp(1.6rem, 4vw, 2.3rem);
    line-height: 1.15;
    margin-top: 4px;
}

.lab-app {
    display: block;
}


/* ---------- step rail ---------- */

.lab-rail {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding: 4px 2px 12px;
    margin-bottom: 8px;
    scrollbar-width: thin;
}

.lab-rail-btn {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 44px;
    padding: 6px 14px 6px 8px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--panel);
    color: var(--muted);
    font: inherit;
    font-size: 0.85rem;
    cursor: pointer;
}

.lab-rail-btn:hover {
    color: var(--text);
}

.lab-rail-btn:focus-visible,
.lab-card:focus-visible,
.lab-btn:focus-visible,
.lab-hist:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.lab-rail-num {
    display: inline-grid;
    place-items: center;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: var(--panel-light);
    font-size: 0.78rem;
    font-weight: 700;
}

.lab-rail-btn.done .lab-rail-num {
    background: rgba(84, 224, 199, 0.2);
    color: var(--accent);
}

.lab-rail-btn.active {
    color: var(--text);
    border-color: var(--accent);
    background: var(--panel-light);
}

.lab-rail-btn.active .lab-rail-num {
    background: var(--accent);
    color: #06201b;
}


/* ---------- panel ---------- */

.lab-panel {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 24px;
    box-shadow: var(--shadow);
}

.lab-panel h1 {
    font-size: clamp(1.35rem, 3.2vw, 1.8rem);
    margin: 4px 0 8px;
}

.lab-panel h2 {
    font-size: 1.05rem;
}

.lab-h2 {
    margin: 26px 0 10px;
}

.lab-lead {
    color: var(--muted);
    line-height: 1.6;
    max-width: 70ch;
    margin-bottom: 18px;
}

.lab-lead strong {
    color: var(--text);
}


/* ---------- choice cards ---------- */

.lab-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 10px;
    margin: 6px 0 12px;
}

.lab-card {
    display: flex;
    flex-direction: column;
    gap: 6px;
    text-align: left;
    padding: 14px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.03);
    color: var(--text);
    font: inherit;
    cursor: pointer;
    min-height: 44px;
}

.lab-card strong {
    font-size: 0.95rem;
}

.lab-card span {
    color: var(--muted);
    font-size: 0.85rem;
    line-height: 1.45;
}

.lab-card em {
    font-style: normal;
    color: var(--accent);
    font-size: 0.78rem;
}

.lab-card:hover {
    border-color: rgba(84, 224, 199, 0.5);
}

.lab-card.active {
    border-color: var(--accent);
    background: rgba(84, 224, 199, 0.09);
}


/* ---------- fields ---------- */

.lab-field {
    margin: 14px 0;
}

.lab-field-top {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 12px;
}

.lab-label {
    font-size: 0.88rem;
    font-weight: 600;
}

.lab-label.block {
    display: block;
    margin: 18px 0 6px;
}

.lab-value {
    font-variant-numeric: tabular-nums;
    color: var(--accent);
    font-weight: 600;
    font-size: 0.9rem;
}

.lab-field input[type="range"] {
    width: 100%;
    margin: 8px 0 2px;
    accent-color: var(--accent);
    min-height: 28px;
}

.lab-hint {
    color: var(--muted);
    font-size: 0.82rem;
    line-height: 1.5;
    margin-top: 4px;
    max-width: 70ch;
}

.lab-hint strong {
    color: var(--text);
}

.lab-text,
.lab-select,
.lab-name {
    width: 100%;
    padding: 10px 12px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--bg);
    color: var(--text);
    font: inherit;
    font-size: 0.92rem;
}

.lab-text {
    resize: vertical;
    line-height: 1.5;
}

.lab-select {
    max-width: 420px;
}

.lab-text:focus-visible,
.lab-select:focus-visible,
.lab-name:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 1px;
}

.lab-check {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    margin: 14px 0;
    color: var(--muted);
    font-size: 0.9rem;
    line-height: 1.5;
    cursor: pointer;
}

.lab-check input {
    margin-top: 4px;
    width: 18px;
    height: 18px;
    accent-color: var(--accent);
}

.lab-check strong {
    color: var(--text);
}


/* ---------- layout helpers ---------- */

.lab-split {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 24px;
    align-items: start;
    margin-top: 12px;
}

.lab-preview canvas,
.lab-results canvas,
.lab-charts canvas {
    display: block;
    width: 100%;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: #10172b;
}

.lab-cap {
    color: var(--muted);
    font-size: 0.8rem;
    margin-bottom: 6px;
}

.lab-how {
    margin-top: 26px;
    padding: 16px 18px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
}

.lab-how ol {
    margin: 10px 0 8px 20px;
    color: var(--muted);
    line-height: 1.7;
    font-size: 0.92rem;
}


/* ---------- report boxes and notes ---------- */

.lab-report {
    margin-top: 14px;
    padding: 14px 16px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
}

.lab-report h2 {
    margin-bottom: 8px;
}

.lab-row {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding: 6px 0;
    border-bottom: 1px solid var(--border);
    font-size: 0.88rem;
}

.lab-row span {
    color: var(--muted);
}

.lab-row strong {
    text-align: right;
    font-weight: 600;
}

.lab-row.stack {
    flex-direction: column;
    gap: 2px;
}

.lab-row.stack strong {
    text-align: left;
    font-weight: 500;
    line-height: 1.45;
}

.lab-notes {
    margin-top: 10px;
}

.lab-note {
    margin: 8px 0 0;
    padding: 9px 12px;
    border-radius: 10px;
    font-size: 0.85rem;
    line-height: 1.5;
}

.lab-note.ok {
    color: #9be8d8;
    background: rgba(84, 224, 199, 0.08);
}

.lab-note.warn {
    color: #ffd29a;
    background: rgba(255, 184, 107, 0.1);
    border: 1px solid rgba(255, 184, 107, 0.25);
}


/* ---------- buttons ---------- */

.lab-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 26px;
}

.lab-action-group {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.lab-btn {
    min-height: 44px;
    padding: 10px 20px;
    border-radius: 12px;
    font: inherit;
    font-weight: 600;
    cursor: pointer;
}

.lab-btn.ghost {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border);
}

.lab-btn.ghost:hover {
    border-color: var(--accent);
}

.lab-btn.small {
    min-height: 36px;
    padding: 6px 14px;
    font-size: 0.85rem;
    background: var(--panel-light);
    color: var(--text);
    border: 1px solid var(--border);
}

.lab-btn.small.ghost {
    background: transparent;
}


/* ---------- batches ---------- */

.lab-batches {
    display: grid;
    gap: 10px;
}

.lab-batch {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 14px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
}

.lab-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    flex: 0 0 auto;
}

.lab-batch-body {
    flex: 1;
    min-width: 0;
}

.lab-batch-body p {
    color: var(--muted);
    font-size: 0.82rem;
    margin-top: 4px;
}

.lab-name {
    margin-top: 6px;
    padding: 6px 10px;
    font-size: 0.85rem;
    max-width: 320px;
}

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


/* ---------- test bench ---------- */

.lab-params {
    margin-top: 6px;
    max-width: 640px;
}

.lab-results {
    margin-top: 22px;
    padding-top: 6px;
}

.lab-results h2 {
    margin-bottom: 12px;
}

.lab-results canvas {
    max-width: 640px;
}

.lab-history {
    margin-top: 10px;
}

.lab-hist {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    width: 100%;
    max-width: 640px;
    margin-top: 8px;
    padding: 10px 14px;
    text-align: left;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.03);
    color: var(--text);
    font: inherit;
    font-size: 0.88rem;
    cursor: pointer;
}

.lab-hist span {
    color: var(--muted);
}

.lab-hist.active {
    border-color: var(--accent);
}


/* ---------- tables ---------- */

.lab-table-wrap {
    overflow-x: auto;
    margin: 12px 0;
    border-radius: 10px;
}

.lab-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
    min-width: 420px;
}

.lab-table th,
.lab-table td {
    padding: 8px 10px;
    border: 1px solid var(--border);
    text-align: left;
    vertical-align: top;
}

.lab-table thead th {
    background: var(--panel-light);
    font-weight: 600;
}

.lab-table tbody th {
    font-weight: 600;
}


/* ---------- compare ---------- */

.lab-picks {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 14px;
}

.lab-pick {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 40px;
    padding: 6px 14px;
    border-radius: 999px;
    border: 1px solid var(--border);
    cursor: pointer;
    font-size: 0.88rem;
}

.lab-pick input {
    accent-color: var(--accent);
    width: 16px;
    height: 16px;
}

.lab-charts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 16px;
    margin-top: 14px;
}

.lab-obs {
    margin: 0 0 12px 20px;
    color: var(--muted);
    line-height: 1.65;
    font-size: 0.92rem;
}

.lab-obs li {
    margin-bottom: 6px;
}

.lab-check-list {
    list-style: none;
    display: grid;
    gap: 4px;
    margin: 6px 0 0;
    padding: 0;
    color: var(--muted);
    font-size: 0.88rem;
}

.lab-check-list li.done {
    color: var(--accent);
}


/* ---------- toast ---------- */

.lab-toast {
    position: fixed;
    left: 50%;
    bottom: 24px;
    transform: translate(-50%, 20px);
    opacity: 0;
    padding: 12px 18px;
    border-radius: 12px;
    background: var(--panel-light);
    border: 1px solid var(--accent);
    color: var(--text);
    font-size: 0.9rem;
    z-index: 3000;
    transition: opacity 0.25s, transform 0.25s;
    max-width: calc(100vw - 32px);
}

.lab-toast.show {
    opacity: 1;
    transform: translate(-50%, 0);
}


/* ---------- small screens ---------- */

@media (max-width: 760px) {

    .lab-page {
        padding: 18px 16px 70px;
    }

    .lab-panel {
        padding: 18px 16px;
    }

    .lab-split {
        grid-template-columns: 1fr;
    }

    .lab-batch {
        flex-wrap: wrap;
    }
}


/* ---------- printing: just the comparison ---------- */

@media print {

    body {
        background: #ffffff !important;
        color: #161a26 !important;
    }

    .topbar,
    .module-exit,
    .lab-intro,
    .lab-rail,
    .no-print,
    .lab-toast,
    .lab-panel > .eyebrow {
        display: none !important;
    }

    .lab-page,
    .lab-panel {
        padding: 0 !important;
        border: 0 !important;
        box-shadow: none !important;
        background: #ffffff !important;
        max-width: none !important;
    }

    .lab-panel *,
    .lab-lead {
        color: #161a26 !important;
    }

    .lab-charts canvas {
        border-color: #ccd !important;
    }
}


/* ---------- call-to-action card on the course page ---------- */

.lab-cta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
    margin: 0 0 28px;
    padding: 22px 24px;
    border-radius: 18px;
    border: 1px solid rgba(84, 224, 199, 0.35);
    background:
        radial-gradient(circle at top right, rgba(84, 224, 199, 0.16), transparent 55%),
        var(--panel);
}

.lab-cta h2 {
    font-size: 1.25rem;
    margin: 4px 0 6px;
}

.lab-cta p:not(.eyebrow) {
    color: var(--muted);
    line-height: 1.55;
    max-width: 60ch;
    font-size: 0.92rem;
}