:root {
    /* Answer scale, 1..5, for the class answer matrix. Fixed values rather than
       the semantic tokens: these carry white text and --success/--error are
       tuned for other jobs. All five clear 6:1 against white. */
    --ans-1: #8f3407;
    --ans-2: #a34309;
    --ans-3: #6f6224;
    --ans-4: #276840;
    --ans-5: #146b41;
    /* The chips always carry white text — the five fills above are chosen so it
       clears 6:1 on every one of them. */
    --ans-ink: #ffffff;
}

.oc-page {
    min-height: calc(100vh - 120px);
    background: var(--surface-page);
    color: var(--gray-900);
}

.oc-shell {
    width: min(1160px, calc(100% - 32px));
    margin: 0 auto;
}

.oc-page-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 16px;
    padding: 36px 0 20px;
}

.oc-page-head h1,
.oc-hero h1 {
    margin: 0;
    color: var(--gray-900);
    font-weight: 750;
    line-height: 1.08;
}

.oc-page-head h1 { font-size: 32px; }
.oc-hero h1 { font-size: 46px; max-width: 780px; }

.oc-page-head p,
.oc-hero p,
.oc-muted {
    color: var(--gray-600);
}

.oc-kicker {
    display: inline-flex;
    align-items: center;
    color: var(--primary);
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .08em;
    margin-bottom: 8px;
}

.oc-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 16px;
    padding-bottom: 36px;
}

.oc-card,
.oc-panel,
.oc-empty,
.oc-hero-panel,
.oc-metric,
.oc-student-next,
.oc-cta-band,
.oc-course-mini {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-md, 8px);
    box-shadow: var(--shadow-sm, 0 10px 24px rgba(15, 23, 42, .04));
}

.oc-card {
    padding: 18px;
}

.oc-card h2,
.oc-panel h2,
.oc-empty h2 {
    margin: 0 0 8px;
    font-size: 20px;
    line-height: 1.25;
    color: var(--gray-900);
}

.oc-card p,
.oc-panel p,
.oc-empty p {
    margin: 0;
    color: var(--gray-600);
    line-height: 1.55;
}

.oc-card-head,
.oc-actions,
.oc-panel-head,
.oc-inline-form,
.oc-hero-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.oc-card-head,
.oc-panel-head {
    justify-content: space-between;
    margin-bottom: 14px;
}

.oc-status,
.oc-enrollment-badge {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
    background: var(--primary-lighter);
    color: var(--primary-active);
}

.oc-status-published,
.oc-status-approved,
.oc-status-paid,
.oc-enrollment-badge.approved { background: var(--success-light); color: var(--success); }
.oc-status-pending,
.oc-status-unpaid { background: var(--accent-light); color: var(--accent-hover); }
.oc-status-rejected,
.oc-status-closed,
.oc-enrollment-badge.closed { background: var(--error-light); color: var(--error); }
.oc-status-draft { background: var(--gray-200); color: var(--gray-800); }

.oc-meta,
.oc-meta-list {
    display: grid;
    gap: 8px;
    margin: 16px 0;
    color: var(--gray-600);
    font-size: 14px;
}

.oc-meta span,
.oc-meta-list span,
.oc-meta-list a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.oc-empty {
    text-align: center;
    padding: 64px 24px;
}

.oc-empty i {
    font-size: 42px;
    color: var(--gray-400);
    margin-bottom: 14px;
}

.oc-form-grid,
.oc-public-grid,
.oc-private-grid,
.oc-manage-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.7fr) minmax(280px, .9fr);
    gap: 18px;
    align-items: start;
    padding-bottom: 28px;
}

.oc-side {
    display: grid;
    gap: 18px;
}

.oc-panel {
    padding: 20px;
}

.oc-fields {
    display: grid;
    gap: 14px;
}

.oc-fields.two {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.oc-fields.three {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.oc-fields.compact {
    gap: 10px;
}

.oc-field {
    display: grid;
    gap: 6px;
    color: var(--gray-700);
    font-size: 14px;
    font-weight: 600;
}

.oc-field.full {
    grid-column: 1 / -1;
}

.oc-field input,
.oc-field select,
.oc-field textarea,
.oc-inline-form select {
    width: 100%;
    min-height: 44px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md, 8px);
    padding: 9px 11px;
    background: var(--white);
    color: var(--gray-900);
    font: inherit;
}

.oc-field textarea {
    resize: vertical;
}

.oc-check {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--gray-700);
    font-size: 14px;
}

.oc-submit {
    justify-content: center;
    min-height: 46px;
}

.oc-alert {
    margin-bottom: 16px;
    padding: 12px 14px;
    border-radius: var(--radius-md, 8px);
    border: 1px solid var(--success-light);
    background: var(--success-light);
    color: var(--success);
    font-weight: 600;
}

.oc-alert.error {
    border-color: var(--error-light);
    background: var(--error-light);
    color: var(--error);
}

.oc-hero {
    padding: 56px 0 36px;
    background-color: rgba(255, 255, 255, .9);
    background-image: url('/courses/assets/images/generated/vietnamcos-hero-pm.jpg');
    background-position: center;
    background-size: cover;
    background-blend-mode: lighten;
    border-bottom: 1px solid var(--border);
}

.oc-hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 32px;
    align-items: center;
}

.oc-hero-actions {
    margin-top: 24px;
}

.oc-hero-actions .btn,
.oc-hero-actions button,
.oc-cta-band .btn,
.oc-cta-band button,
.oc-fields button,
.oc-review-form button {
    min-height: 44px;
}

.oc-hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 18px;
}

.oc-hero-meta span {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 36px;
    padding: 7px 11px;
    border: 1px solid var(--border);
    border-radius: var(--radius-full, 999px);
    background: rgba(255, 255, 255, .82);
    color: var(--gray-700);
    font-size: 13px;
    font-weight: 650;
}

.oc-hero-panel {
    padding: 20px;
}

.oc-stat-row {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
}

.oc-stat-row strong {
    text-align: right;
}

.oc-stat-feature strong {
    color: var(--primary);
}

.oc-stat-row:last-child {
    border-bottom: 0;
}

.oc-rich-text {
    color: var(--gray-700);
    line-height: 1.7;
    max-width: 72ch;
}

.oc-story-panel h2 {
    max-width: 760px;
}

.oc-outcome-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    margin-top: 20px;
}

.oc-outcome-grid div,
.oc-method-list div,
.oc-fit-list div {
    display: grid;
    gap: 7px;
    padding: 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md, 8px);
    background: var(--gray-100);
}

.oc-outcome-grid i {
    color: var(--primary);
    font-size: 18px;
}

.oc-outcome-grid strong,
.oc-method-list strong {
    color: var(--gray-900);
}

.oc-outcome-grid span,
.oc-method-list span,
.oc-fit-list span {
    color: var(--gray-600);
    font-size: 13px;
    line-height: 1.5;
}

.oc-fit-list {
    display: grid;
    gap: 10px;
    margin-top: 16px;
}

.oc-fit-list div {
    grid-template-columns: 22px minmax(0, 1fr);
    align-items: start;
}

.oc-fit-list i {
    color: var(--success);
    margin-top: 2px;
}

.oc-mentor-card {
    display: grid;
    gap: 14px;
}

.oc-mentor-head {
    display: flex;
    gap: 14px;
    align-items: center;
}

.oc-mentor-head img {
    width: 62px;
    height: 62px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--primary-lighter);
}

.oc-mentor-head h2 {
    margin-bottom: 2px;
}

.oc-mentor-card > p {
    color: var(--gray-700);
    line-height: 1.6;
}

.oc-mentor-card a {
    color: var(--primary);
    font-weight: 700;
    text-decoration: none;
}

.oc-location-panel {
    overflow: hidden;
}

.oc-map-preview,
.oc-map-placeholder {
    width: 100%;
    min-height: 220px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md, 8px);
    margin-top: 14px;
}

.oc-map-preview {
    display: block;
}

.oc-map-tile {
    position: relative;
    overflow: hidden;
    background-size: cover;
    background-position: center;
    color: var(--gray-900);
    text-decoration: none;
}

.oc-map-tile::after {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(17, 24, 39, .12);
}

.oc-map-pin {
    position: absolute;
    left: 50%;
    top: 48%;
    z-index: 1;
    transform: translate(-50%, -50%);
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--primary);
    color: var(--white);
    box-shadow: 0 10px 28px rgba(37, 99, 235, .35);
}

.oc-map-tile strong {
    position: absolute;
    left: 12px;
    right: 12px;
    bottom: 12px;
    z-index: 1;
    display: block;
    padding: 9px 11px;
    border-radius: var(--radius-md, 8px);
    background: rgba(255,255,255,.92);
    box-shadow: var(--shadow-sm, 0 1px 2px rgba(0,0,0,.05));
}

.oc-map-placeholder {
    display: grid;
    place-items: center;
    gap: 8px;
    padding: 18px;
    text-align: center;
    color: var(--gray-500);
    background: var(--gray-100);
}

.oc-map-placeholder i {
    color: var(--primary);
    font-size: 24px;
}

.oc-method-list {
    display: grid;
    gap: 10px;
}

.oc-method-list div {
    grid-template-columns: 34px minmax(0, 1fr);
    align-items: start;
}

.oc-method-list strong {
    width: 30px;
    height: 30px;
    display: inline-grid;
    place-items: center;
    border-radius: 50%;
    background: var(--primary-lighter);
    color: var(--primary);
}

.oc-student-next {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 18px 20px;
    margin: 24px auto 28px;
}

.oc-student-next h2,
.oc-cta-band h2,
.oc-section-title h2 {
    margin: 0;
    color: var(--gray-900);
}

.oc-student-next p,
.oc-cta-band p {
    margin: 6px 0 0;
    color: var(--gray-600);
}

.oc-next-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: flex-end;
}

.oc-next-actions a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 40px;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-full, 999px);
    color: var(--gray-700);
    text-decoration: none;
    font-weight: 650;
}

.oc-next-actions a:hover {
    color: var(--primary);
    border-color: var(--primary);
    background: var(--primary-lighter);
}

.oc-timeline,
.oc-list,
.oc-agenda-list,
.oc-faq-list {
    display: grid;
    gap: 10px;
}

.oc-timeline-item,
.oc-list-row,
.oc-agenda-item {
    display: grid;
    gap: 3px;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md, 8px);
    background: var(--gray-100);
}

.oc-link-row {
    color: inherit;
    text-decoration: none;
}

.oc-link-row:hover {
    border-color: var(--primary);
    background: var(--primary-lighter);
}

.oc-timeline-item span,
.oc-list-row span,
.oc-timeline-item small,
.oc-agenda-item span {
    color: var(--gray-600);
    font-size: 13px;
}

.oc-agenda-item {
    grid-template-columns: 150px minmax(0, 1fr);
    align-items: center;
}

.oc-agenda-item span {
    font-weight: 750;
    color: var(--primary);
}

.oc-payment-public {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 36px;
}

.oc-payment-public img {
    width: 140px;
    height: 140px;
    border-radius: var(--radius-md, 8px);
    border: 1px solid var(--border);
    object-fit: cover;
}

.oc-thread-list,
.oc-review-list {
    display: grid;
    gap: 14px;
}

.oc-thread,
.oc-review {
    border: 1px solid var(--border);
    border-radius: var(--radius-md, 8px);
    background: var(--white);
    padding: 14px;
}

.oc-thread-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 8px;
}

.oc-thread-head span,
.oc-reply strong {
    color: var(--gray-500);
    font-size: 13px;
}

.oc-thread p,
.oc-review p,
.oc-reply p {
    color: var(--gray-700);
    line-height: 1.6;
    margin: 6px 0 0;
}

.oc-reply {
    margin-top: 10px;
    padding: 10px 12px;
    border-left: 3px solid var(--primary);
    background: var(--gray-100);
    border-radius: 0 var(--radius-md, 8px) var(--radius-md, 8px) 0;
}

.oc-inline-reply,
.oc-review-form {
    display: grid;
    gap: 8px;
    margin-top: 12px;
}

.oc-inline-reply textarea,
.oc-review-form textarea,
.oc-review-form select {
    width: 100%;
    border: 1px solid var(--border);
    border-radius: var(--radius-md, 8px);
    padding: 9px 11px;
    font: inherit;
    min-height: 44px;
}

.oc-assignment-panel {
    margin-bottom: 28px;
}

.oc-certificate-panel {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 260px;
    gap: 18px;
    align-items: center;
}

.oc-certificate-panel p {
    color: var(--gray-600);
    line-height: 1.6;
}

.oc-certificate-preview {
    min-height: 150px;
    display: grid;
    place-items: center;
    text-align: center;
    gap: 8px;
    padding: 18px;
    border: 1px solid var(--primary-light);
    border-radius: var(--radius-md, 8px);
    background: var(--primary-lighter);
}

.oc-certificate-preview i {
    font-size: 34px;
    color: var(--primary);
}

.oc-certificate-preview span {
    color: var(--gray-600);
    font-size: 13px;
}

.oc-faq-list details {
    border: 1px solid var(--border);
    border-radius: var(--radius-md, 8px);
    background: var(--white);
    padding: 14px 16px;
}

.oc-faq-list summary {
    cursor: pointer;
    font-weight: 750;
    color: var(--gray-900);
}

.oc-faq-list p {
    margin: 10px 0 0;
    color: var(--gray-600);
    line-height: 1.6;
}

.oc-manager-cockpit {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(280px, .8fr);
    gap: 18px;
    padding-bottom: 18px;
}

.oc-check-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 10px;
}

.oc-check-grid div {
    display: flex;
    gap: 8px;
    align-items: center;
    min-height: 44px;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md, 8px);
    color: var(--gray-700);
    font-weight: 650;
}

.oc-check-grid .done {
    background: var(--success-light);
    border-color: var(--success-light);
    color: var(--success);
}

.oc-check-grid .todo {
    background: var(--accent-lighter);
    border-color: var(--accent-light);
    color: var(--accent-hover);
}

.oc-submit.full {
    grid-column: 1 / -1;
}

.oc-cta-band {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 24px;
    margin-top: 28px;
    margin-bottom: 34px;
    background: var(--primary-lighter);
}

.oc-related {
    padding-bottom: 44px;
}

.oc-section-title {
    margin-bottom: 16px;
}

.oc-related-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.oc-course-mini {
    display: grid;
    grid-template-columns: 112px minmax(0, 1fr);
    gap: 14px;
    padding: 12px;
    color: inherit;
    text-decoration: none;
}

.oc-course-mini:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md, 0 8px 18px rgba(37, 99, 235, .12));
}

.oc-course-mini img {
    width: 112px;
    height: 84px;
    border-radius: var(--radius-md, 8px);
    object-fit: cover;
    background: var(--gray-100);
}

.oc-course-mini span {
    display: block;
    color: var(--primary);
    font-size: 12px;
    font-weight: 700;
    margin-bottom: 4px;
}

.oc-course-mini strong {
    display: block;
    color: var(--gray-900);
    line-height: 1.35;
}

.oc-course-mini p {
    margin: 6px 0 0;
    color: var(--gray-600);
    font-size: 13px;
    line-height: 1.45;
}

.oc-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(158px, 1fr));
    gap: 14px;
    margin-bottom: 18px;
}

.oc-metric {
    padding: 16px;
}

.oc-metric span {
    display: block;
    color: var(--gray-600);
    font-size: 13px;
    margin-bottom: 6px;
}

.oc-metric strong {
    font-size: 26px;
}

.oc-metric small {
    display: block;
    margin-top: 4px;
    font-size: 12px;
    font-weight: 600;
    color: var(--gray-500);
}

.oc-metric.hl strong { color: var(--primary); }
.oc-metric.good strong { color: var(--success); }

.oc-table-wrap {
    overflow-x: auto;
}

.oc-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 900px;
}

.oc-table th,
.oc-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    vertical-align: top;
}

.oc-table th {
    color: var(--gray-600);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: .04em;
}

.oc-table td > span {
    display: block;
    color: var(--gray-500);
    font-size: 13px;
    margin-top: 3px;
}

.oc-section-gap {
    margin-top: 18px;
}

@media (max-width: 900px) {
    .oc-page-head,
    .oc-payment-public {
        align-items: flex-start;
        flex-direction: column;
    }

    .oc-form-grid,
    .oc-public-grid,
    .oc-private-grid,
    .oc-manage-grid,
    .oc-hero-grid,
    .oc-manager-cockpit {
        grid-template-columns: 1fr;
    }

    .oc-metrics {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .oc-hero h1 {
        font-size: 32px;
    }

    .oc-student-next,
    .oc-cta-band {
        align-items: flex-start;
        flex-direction: column;
    }

    .oc-next-actions {
        justify-content: flex-start;
    }

    .oc-outcome-grid,
    .oc-related-grid,
    .oc-check-grid,
    .oc-certificate-panel {
        grid-template-columns: 1fr;
    }

    .oc-course-mini {
        grid-template-columns: 96px minmax(0, 1fr);
    }

    .oc-course-mini img {
        width: 96px;
        height: 76px;
    }
}

@media (max-width: 620px) {
    .oc-fields.two,
    .oc-fields.three,
    .oc-metrics {
        grid-template-columns: 1fr;
    }

    .oc-shell {
        width: min(100% - 20px, 1160px);
    }

    .oc-hero {
        padding: 38px 0 24px;
    }

    .oc-hero h1 {
        font-size: 30px;
    }

    .oc-hero-panel,
    .oc-panel,
    .oc-student-next,
    .oc-cta-band {
        padding: 16px;
    }

    .oc-hero-actions .btn,
    .oc-hero-actions form,
    .oc-hero-actions button,
    .oc-cta-band .btn,
    .oc-cta-band form,
    .oc-cta-band button {
        width: 100%;
        justify-content: center;
    }

    .oc-map-preview,
    .oc-map-placeholder {
        min-height: 190px;
    }

    .oc-agenda-item {
        grid-template-columns: 1fr;
    }

    .oc-public-grid,
    .oc-private-grid {
        gap: 14px;
        padding-bottom: 18px;
    }
}

/* ===== Phase 1: student learning UI (tokens only) ===== */
.oc-progress-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); margin-bottom: var(--space-5); }
.oc-progress-metric { background: var(--surface-inset); border: 1px solid var(--border); border-radius: var(--radius-md); padding: var(--space-3) var(--space-4); }
.oc-progress-metric span { display: block; font-size: var(--text-xs); color: var(--gray-600); }
.oc-progress-metric strong { display: block; font-size: var(--text-xl); font-weight: var(--font-bold); color: var(--black); margin: 2px 0 var(--space-2); }
.oc-progress-bar { height: 6px; background: var(--gray-300); border-radius: var(--radius-full); overflow: hidden; }
.oc-progress-bar i { display: block; height: 100%; background: var(--primary); border-radius: var(--radius-full); }
.oc-assignment-cards { display: flex; flex-direction: column; gap: var(--space-4); }
.oc-assignment-card { border: 1px solid var(--border); border-left: 3px solid var(--gray-400); border-radius: var(--radius-md); padding: var(--space-4); }
.oc-assignment-card.is-submitted { border-left-color: var(--info); }
.oc-assignment-card.is-graded { border-left-color: var(--success); }
.oc-assignment-top { display: flex; justify-content: space-between; align-items: flex-start; gap: var(--space-3); }
.oc-assignment-top strong { display: block; font-size: var(--text-base); color: var(--black); }
.oc-assignment-tag { font-size: var(--text-xs); color: var(--gray-600); }
.oc-assignment-desc { font-size: var(--text-sm); color: var(--gray-700); margin: var(--space-2) 0; }
.oc-badge { display: inline-flex; align-items: center; gap: 4px; font-size: var(--text-xs); font-weight: var(--font-semibold); padding: 4px var(--space-2); border-radius: var(--radius-full); white-space: nowrap; }
.oc-badge.success { background: var(--success-light); color: var(--success); }
.oc-badge.info { background: var(--info-light); color: var(--info); }
.oc-badge.muted { background: var(--gray-200); color: var(--gray-600); }
.oc-feedback { font-size: var(--text-sm); background: var(--surface-inset); border-radius: var(--radius); padding: var(--space-2) var(--space-3); margin: var(--space-2) 0; color: var(--gray-800); }
.oc-submit-form { margin-top: var(--space-3); }
.oc-submit-form textarea, .oc-submit-form input[type="url"] { width: 100%; padding: var(--space-2) var(--space-3); border: 1px solid var(--border-strong); border-radius: var(--radius); font-family: inherit; font-size: var(--text-sm); }
.oc-submit-row { display: flex; gap: var(--space-2); align-items: center; margin-top: var(--space-2); flex-wrap: wrap; }
.oc-submit-row input[type="url"] { flex: 1 1 200px; }
.oc-submit-file { font-size: var(--text-xs); color: var(--gray-600); margin-top: var(--space-1); display: inline-block; }
@media (max-width: 640px) { .oc-progress-strip { grid-template-columns: 1fr; } }

/* ===== Phase 1: mentor grading + attendance (tokens only) ===== */
.oc-attendance-table select { padding: 4px var(--space-2); border: 1px solid var(--border-strong); border-radius: var(--radius-sm); font-size: var(--text-xs); background: var(--white); }
.oc-attendance-table select.oc-att-present { border-color: var(--success); color: var(--success); }
.oc-attendance-table select.oc-att-absent { border-color: var(--error); color: var(--error); }
.oc-attendance-table select.oc-att-late { border-color: var(--warning); color: var(--warning); }
.oc-att-form { margin: 0; }
.oc-submission-row { border: 1px solid var(--border); border-left: 3px solid var(--info); border-radius: var(--radius-md); padding: var(--space-3) var(--space-4); margin-bottom: var(--space-3); }
.oc-submission-row.is-graded { border-left-color: var(--success); }
.oc-submission-head { display: flex; justify-content: space-between; gap: var(--space-3); align-items: baseline; flex-wrap: wrap; }
.oc-submission-head strong { color: var(--black); font-size: var(--text-sm); }
.oc-submission-head span { color: var(--gray-600); font-size: var(--text-xs); }
.oc-submission-text { font-size: var(--text-sm); color: var(--gray-700); background: var(--surface-inset); border-radius: var(--radius); padding: var(--space-2) var(--space-3); margin: var(--space-2) 0; }
.oc-submission-link { font-size: var(--text-xs); color: var(--primary); margin-right: var(--space-3); }
.oc-grade-form { display: flex; gap: var(--space-2); align-items: center; margin-top: var(--space-2); flex-wrap: wrap; }
.oc-grade-form input[type="number"] { width: 90px; padding: var(--space-2); border: 1px solid var(--border-strong); border-radius: var(--radius); }
.oc-grade-form input[type="text"] { flex: 1 1 220px; padding: var(--space-2) var(--space-3); border: 1px solid var(--border-strong); border-radius: var(--radius); font-size: var(--text-sm); }

/* ===== Phase 2: modals, star widget, CTA cards (tokens only) ===== */
.oc-modal { position: fixed; inset: 0; z-index: 1000; display: none; align-items: center; justify-content: center; padding: var(--space-4); background: rgba(17, 24, 39, .55); }
.oc-modal.open { display: flex; }
.oc-modal-box { background: var(--white); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); width: 100%; max-width: 480px; max-height: 90vh; overflow-y: auto; }
.oc-modal-head { display: flex; align-items: center; justify-content: space-between; padding: var(--space-4) var(--space-5); border-bottom: 1px solid var(--border); }
.oc-modal-head h3 { margin: 0; font-size: var(--text-lg); color: var(--black); }
.oc-modal-head h3 i { color: var(--primary); margin-right: var(--space-2); }
.oc-modal-close { background: none; border: none; font-size: var(--text-2xl); line-height: 1; color: var(--gray-500); cursor: pointer; padding: 0 var(--space-1); }
.oc-modal-close:hover { color: var(--gray-800); }
.oc-modal-body { padding: var(--space-5); }
.oc-modal-body textarea, .oc-modal-body input[type="text"], .oc-modal-body input:not([type]) { width: 100%; padding: var(--space-3); border: 1px solid var(--border-strong); border-radius: var(--radius); font-family: inherit; font-size: var(--text-sm); margin-bottom: var(--space-3); }
.oc-field-label { display: block; font-size: var(--text-sm); font-weight: var(--font-medium); color: var(--gray-800); margin-bottom: var(--space-2); }
.oc-modal-actions { display: flex; justify-content: flex-end; gap: var(--space-2); margin-top: var(--space-2); }
.oc-stars { display: inline-flex; gap: var(--space-1); margin-bottom: var(--space-4); font-size: var(--text-2xl); }
.oc-star { color: var(--gray-300); cursor: pointer; transition: color var(--transition-fast); }
.oc-star.on { color: var(--accent); }
.oc-cta-card { text-align: center; }
.oc-cta-card-icon { width: 56px; height: 56px; margin: 0 auto var(--space-3); border-radius: var(--radius-full); display: grid; place-items: center; background: var(--primary-lighter); color: var(--primary); font-size: var(--text-2xl); }
.oc-cta-card h2 { font-size: var(--text-lg); margin-bottom: var(--space-2); }
.oc-cta-card p { margin-bottom: var(--space-4); }

/* ===== Phase 2.3: sticky enrollment bar + pagination "more" ===== */
.oc-sticky-cta { position: fixed; left: 0; right: 0; bottom: 0; z-index: 900; display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); padding: var(--space-3) var(--space-6); background: var(--white); border-top: 1px solid var(--border); box-shadow: var(--shadow-lg); transform: translateY(100%); transition: transform var(--transition); }
.oc-sticky-cta.show { transform: translateY(0); }
.oc-sticky-info { min-width: 0; }
.oc-sticky-info strong { display: block; font-size: var(--text-sm); color: var(--black); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.oc-sticky-info span { font-size: var(--text-xs); color: var(--gray-600); }
.oc-sticky-form { margin: 0; flex: 0 0 auto; }
.oc-more { display: block; margin: var(--space-3) auto 0; }
@media (max-width: 640px) {
    .oc-sticky-cta { flex-direction: column; gap: var(--space-2); padding: var(--space-3) var(--space-4); }
    .oc-sticky-info { text-align: center; width: 100%; }
    .oc-sticky-form, .oc-sticky-form .btn { width: 100%; }
}

/* ===== Phase 3: certificate page (tokens only) ===== */
.oc-cert-page { padding: var(--space-8) 0; }
.oc-cert { max-width: 720px; margin: 0 auto; background: var(--white); border: 1px solid var(--border); border-top: 4px solid var(--primary); border-radius: var(--radius-lg); box-shadow: var(--shadow-md); padding: var(--space-12) var(--space-10); text-align: center; }
.oc-cert-ribbon { width: 72px; height: 72px; margin: 0 auto var(--space-4); border-radius: var(--radius-full); display: grid; place-items: center; background: var(--accent-lighter); color: var(--accent); font-size: var(--text-3xl); }
.oc-cert-kicker { text-transform: uppercase; letter-spacing: .08em; font-size: var(--text-xs); font-weight: var(--font-semibold); color: var(--gray-500); }
.oc-cert-title { font-size: var(--text-2xl); color: var(--black); margin: var(--space-2) 0 var(--space-6); }
.oc-cert-sub { color: var(--gray-600); font-size: var(--text-sm); }
.oc-cert-name { font-size: var(--text-3xl); font-weight: var(--font-bold); color: var(--primary); margin: var(--space-2) 0 var(--space-4); font-family: Georgia, 'Times New Roman', serif; }
.oc-cert-body { color: var(--gray-800); font-size: var(--text-base); max-width: 520px; margin: 0 auto var(--space-3); line-height: var(--leading-relaxed); }
.oc-cert-note { color: var(--gray-600); font-size: var(--text-sm); max-width: 480px; margin: 0 auto var(--space-6); }
.oc-cert-meta { display: flex; justify-content: center; gap: var(--space-8); flex-wrap: wrap; padding: var(--space-5) 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); margin: var(--space-4) 0; }
.oc-cert-meta div { display: flex; flex-direction: column; }
.oc-cert-meta span { font-size: var(--text-xs); color: var(--gray-500); }
.oc-cert-meta strong { font-size: var(--text-base); color: var(--black); }
.oc-cert-verify { font-size: var(--text-xs); color: var(--gray-600); margin-bottom: var(--space-6); }
.oc-cert-verify code { background: var(--surface-inset); padding: 2px var(--space-2); border-radius: var(--radius-sm); }
.oc-cert-actions { display: flex; gap: var(--space-3); justify-content: center; flex-wrap: wrap; }
@media (max-width: 640px) { .oc-cert { padding: var(--space-8) var(--space-5); } .oc-cert-meta { gap: var(--space-5); } }

/* ===== Phase 3: cert callout, self-cancel, student reply ===== */
.oc-cert-callout { display: flex; align-items: center; gap: var(--space-4); padding: var(--space-4) var(--space-5); background: var(--accent-lighter); border: 1px solid var(--accent-light); border-radius: var(--radius-lg); text-decoration: none; color: var(--gray-800); transition: box-shadow var(--transition); }
.oc-cert-callout:hover { box-shadow: var(--shadow-md); }
.oc-cert-callout-icon { flex: 0 0 auto; width: 48px; height: 48px; border-radius: var(--radius-full); display: grid; place-items: center; background: var(--accent); color: var(--white); font-size: var(--text-xl); }
.oc-cert-callout > span:nth-child(2) { flex: 1; display: flex; flex-direction: column; }
.oc-cert-callout strong { color: var(--accent-hover); }
.oc-cert-callout-cta { flex: 0 0 auto; font-weight: var(--font-semibold); color: var(--accent-hover); white-space: nowrap; }
.oc-next-cert { color: var(--accent-hover) !important; font-weight: var(--font-semibold); }
.oc-leave-form { margin-top: var(--space-2); }
.oc-leave-btn { background: none; border: none; color: var(--gray-500); font-size: var(--text-xs); cursor: pointer; padding: 0; text-decoration: underline; }
.oc-leave-btn:hover { color: var(--error); }
.oc-inline-reply { margin-top: var(--space-3); display: flex; flex-direction: column; gap: var(--space-2); }
.oc-inline-reply textarea { width: 100%; padding: var(--space-2) var(--space-3); border: 1px solid var(--border-strong); border-radius: var(--radius); font-family: inherit; font-size: var(--text-sm); }
.oc-inline-reply button { align-self: flex-start; }

/* ===== Phase 3: session editor ===== */
.oc-session-form { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2); padding: var(--space-3); border: 1px solid var(--border); border-radius: var(--radius-md); margin-bottom: var(--space-2); }
.oc-session-day { font-size: var(--text-xs); font-weight: var(--font-semibold); color: var(--primary); background: var(--primary-lighter); padding: 2px var(--space-2); border-radius: var(--radius-sm); }
.oc-session-form input[name="title"], .oc-session-form input[name="location_note"] { flex: 1 1 140px; padding: var(--space-2); border: 1px solid var(--border-strong); border-radius: var(--radius); font-size: var(--text-sm); }
.oc-session-times { display: flex; gap: var(--space-1); }
.oc-session-times input { padding: var(--space-1) var(--space-2); border: 1px solid var(--border-strong); border-radius: var(--radius); font-size: var(--text-xs); }

/* ===== Manage-page polish + new controls (tokens only) ===== */
/* Draft preview banner */
.oc-preview-bar { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); flex-wrap: wrap; background: var(--accent-lighter); border-bottom: 1px solid var(--accent-light); color: var(--accent-hover); font-size: var(--text-sm); padding: var(--space-3) var(--space-6); }
.oc-preview-bar a { color: var(--accent-hover); font-weight: var(--font-semibold); white-space: nowrap; }

/* Panel-head with multiple actions */
.oc-panel-head-actions { display: flex; gap: var(--space-2); flex-wrap: wrap; align-items: center; }
.oc-plan-hint { font-size: var(--text-xs); margin: 0 0 var(--space-4); }

/* Price field with live preview */
.oc-price-field { display: flex; align-items: center; gap: var(--space-3); }
.oc-price-field input { flex: 1 1 auto; }
.oc-price-preview { flex: 0 0 auto; font-size: var(--text-sm); font-weight: var(--font-semibold); color: var(--primary); white-space: nowrap; }

/* --- Manage-page rhythm: calmer spacing, consistent panels --- */
.oc-page .oc-shell { margin-bottom: var(--space-5); }
.oc-manager-cockpit, .oc-manage-grid, .oc-metrics { margin-bottom: var(--space-5); }
.oc-panel { padding: var(--space-6); }
.oc-panel-head { margin-bottom: var(--space-5); align-items: flex-start; }
.oc-panel-head h2 { font-size: var(--text-lg); }
.oc-manage-grid { gap: var(--space-5); grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
.oc-fields { gap: var(--space-4); }
.oc-fields.two { gap: var(--space-4) var(--space-5); }
.oc-field span { margin-bottom: var(--space-1); }
.oc-list { display: grid; gap: var(--space-2); }
.oc-list-row { padding: var(--space-3) var(--space-4); border: 1px solid var(--border); border-radius: var(--radius-md); display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); flex-wrap: wrap; }
.oc-list-row strong { display: flex; align-items: center; gap: var(--space-2); }
.oc-section-gap { margin-top: var(--space-4); }
.oc-metric { padding: var(--space-4) var(--space-5); }
/* keep manage grids single-column on small screens */
@media (max-width: 860px) { .oc-manage-grid { grid-template-columns: 1fr; } }

/* ===== Manager tabs ===== */
.oc-tabs { display: flex; gap: var(--space-1); flex-wrap: wrap; border-bottom: 1px solid var(--border); margin-bottom: var(--space-5); padding-bottom: 0; }
.oc-tab { display: inline-flex; align-items: center; gap: var(--space-2); background: none; border: none; border-bottom: 2px solid transparent; padding: var(--space-3) var(--space-4); font-size: var(--text-sm); font-weight: var(--font-medium); color: var(--gray-600); cursor: pointer; white-space: nowrap; }
.oc-tab:hover { color: var(--gray-900); }
.oc-tab.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: var(--font-semibold); }
.oc-tab-badge { background: var(--error); color: var(--white); font-size: var(--text-xs); font-weight: var(--font-bold); min-width: 18px; height: 18px; border-radius: var(--radius-full); display: inline-flex; align-items: center; justify-content: center; padding: 0 5px; }

/* ===== Readiness cockpit ===== */
.oc-readiness-body { display: flex; gap: var(--space-6); align-items: center; flex-wrap: wrap; }
.oc-ring { position: relative; flex: 0 0 auto; }
.oc-ring svg { transform: rotate(-90deg); }
.oc-ring-track { fill: none; stroke: var(--gray-200); stroke-width: 8; }
.oc-ring-fill { fill: none; stroke: var(--primary); stroke-width: 8; stroke-linecap: round; transition: stroke-dashoffset var(--transition-slow); }
.oc-ring-label { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.oc-ring-label strong { font-size: var(--text-lg); color: var(--black); }
.oc-ring-label span { font-size: var(--text-xs); color: var(--gray-500); }
.oc-check-list { list-style: none; margin: 0; padding: 0; flex: 1 1 220px; display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-2) var(--space-4); }
.oc-check-list li { display: flex; align-items: center; gap: var(--space-2); font-size: var(--text-sm); }
.oc-check-list li.done { color: var(--gray-800); }
.oc-check-list li.done i { color: var(--success); }
.oc-check-list li.todo { color: var(--gray-500); }
.oc-check-list li.todo i { color: var(--gray-400); }
.oc-todo-list { display: grid; gap: var(--space-2); }
.oc-todo-row { display: flex; align-items: center; gap: var(--space-3); width: 100%; text-align: left; background: var(--surface-inset); border: 1px solid var(--border); border-radius: var(--radius-md); padding: var(--space-3) var(--space-4); cursor: pointer; font-size: var(--text-sm); color: var(--gray-800); }
.oc-todo-row:hover { border-color: var(--border-strong); }
.oc-todo-num { flex: 0 0 auto; min-width: 30px; height: 30px; border-radius: var(--radius-full); display: inline-flex; align-items: center; justify-content: center; font-weight: var(--font-bold); background: var(--gray-200); color: var(--gray-600); }
.oc-todo-row.warn .oc-todo-num { background: var(--accent-light); color: var(--accent-hover); }
.oc-todo-label { flex: 1; }
.oc-todo-row i { color: var(--gray-400); }

/* ===== Hero uploader ===== */
.oc-hero-uploader { display: flex; gap: var(--space-4); align-items: center; padding: var(--space-4); border: 1px solid var(--border); border-radius: var(--radius-md); margin-bottom: var(--space-5); background: var(--surface-inset); }
.oc-hero-thumb { flex: 0 0 auto; width: 160px; height: 90px; border-radius: var(--radius); background-size: cover; background-position: center; border: 1px solid var(--border); position: relative; }
.oc-hero-thumb-note { position: absolute; bottom: 4px; left: 4px; font-size: 10px; background: rgba(17,24,39,.6); color: var(--white); padding: 1px 6px; border-radius: var(--radius-sm); }
.oc-hero-uploader-body { flex: 1 1 auto; min-width: 0; }
.oc-hero-uploader-body strong { display: block; color: var(--black); }

/* ===== Day planner ===== */
.oc-planner { display: grid; grid-template-columns: 1fr 260px; gap: var(--space-5); align-items: start; }
.oc-planner-days { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: var(--space-4); }
.oc-day-col, .oc-planner-pool { border: 1px solid var(--border); border-radius: var(--radius-md); background: var(--surface-inset); overflow: hidden; }
.oc-day-head { display: flex; align-items: center; justify-content: space-between; padding: var(--space-3) var(--space-4); background: var(--white); border-bottom: 1px solid var(--border); }
.oc-day-head strong { font-size: var(--text-sm); color: var(--black); }
.oc-day-del { background: none; border: none; color: var(--gray-400); cursor: pointer; }
.oc-day-del:hover { color: var(--error); }
.oc-day-drop { min-height: 90px; padding: var(--space-3); display: flex; flex-direction: column; gap: var(--space-2); }
.oc-day-drop.drop-hover { background: var(--primary-lighter); outline: 2px dashed var(--primary); outline-offset: -4px; }
.oc-pool-drop { max-height: 420px; overflow-y: auto; }
.oc-lesson-chip { display: flex; align-items: center; gap: var(--space-2); background: var(--white); border: 1px solid var(--border-strong); border-radius: var(--radius); padding: var(--space-2) var(--space-3); font-size: var(--text-xs); color: var(--gray-800); cursor: grab; }
.oc-lesson-chip i { color: var(--gray-400); }
.oc-lesson-chip.dragging { opacity: .5; }
.oc-planner-pool .oc-day-head strong { color: var(--gray-600); }
@media (max-width: 860px) { .oc-planner { grid-template-columns: 1fr; } }

/* ===== Landing beautification ===== */
/* Taller, more striking hero */
.oc-hero-landing { padding: var(--space-16) 0 var(--space-12); background-color: rgba(255,255,255,.82); }
.oc-hero-landing h1 { font-size: var(--text-4xl); line-height: 1.1; letter-spacing: -0.01em; }
.oc-hero-landing .oc-hero-panel { box-shadow: var(--shadow-lg); border: none; }
.oc-hero-landing p { font-size: var(--text-lg); color: var(--gray-800); }

/* Section rhythm: airier, less boxy. Story/mentor row gets no hard card edges. */
.oc-public-grid { padding: var(--space-10) 0; }
.oc-story-panel, .oc-method-panel { border: none; box-shadow: none; background: transparent; padding: 0; }
.oc-story-panel h2 { font-size: var(--text-2xl); line-height: 1.25; margin-bottom: var(--space-4); }
.oc-mentor-card { box-shadow: var(--shadow-md); }
.oc-mentor-head img { width: 64px; height: 64px; border-radius: var(--radius-full); object-fit: cover; border: 2px solid var(--white); box-shadow: var(--shadow-sm); }

/* Rich day-by-day schedule */
.oc-schedule { display: flex; flex-direction: column; gap: var(--space-3); }
.oc-schedule-day { display: flex; gap: var(--space-4); padding: var(--space-4); border: 1px solid var(--border); border-radius: var(--radius-lg); background: var(--white); }
.oc-schedule-daynum { flex: 0 0 auto; width: 56px; text-align: center; font-size: var(--text-xs); color: var(--gray-500); background: var(--primary-lighter); border-radius: var(--radius-md); padding: var(--space-2) 0; }
.oc-schedule-daynum b { display: block; font-size: var(--text-2xl); color: var(--primary); line-height: 1; }
.oc-schedule-body { flex: 1 1 auto; min-width: 0; }
.oc-schedule-body > strong { display: block; font-size: var(--text-base); color: var(--black); margin-bottom: var(--space-2); }
.oc-schedule-meta { display: flex; flex-wrap: wrap; gap: var(--space-3); font-size: var(--text-xs); color: var(--gray-600); margin-bottom: var(--space-2); }
.oc-schedule-meta i { color: var(--gray-500); }
.oc-schedule-lessons { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.oc-lesson-pill { display: inline-flex; align-items: center; gap: 5px; font-size: var(--text-xs); background: var(--surface-inset); border: 1px solid var(--border); border-radius: var(--radius-full); padding: 3px var(--space-3); color: var(--gray-800); }
.oc-lesson-pill i { color: var(--success); font-size: 10px; }
.oc-schedule-note { font-size: var(--text-sm); color: var(--gray-700); margin: 0; }
.oc-meet-link { display: inline-flex; align-items: center; gap: var(--space-2); margin-top: var(--space-2); font-size: var(--text-sm); font-weight: var(--font-semibold); color: var(--primary); }
.oc-meet-note { font-size: var(--text-xs); color: var(--gray-600); margin-left: var(--space-2); }
.oc-meet-badge { display: inline-flex; align-items: center; gap: 5px; margin-top: var(--space-2); font-size: var(--text-xs); color: var(--gray-600); background: var(--surface-inset); border-radius: var(--radius-full); padding: 2px var(--space-3); }
@media (max-width: 640px) { .oc-hero-landing h1 { font-size: var(--text-3xl); } }

/* assignment channel checkboxes inline */
.oc-assign-checks { display: flex; flex-wrap: wrap; gap: var(--space-3); }
.oc-assign-checks .oc-check { font-size: var(--text-xs); }

/* ============================================================
   Landing v5 — airy editorial: flat sections separated by
   full-bleed alternating background bands (not stacked boxes).
   ============================================================ */
.oc-landing { background: var(--white); overflow-x: hidden; overflow-x: clip; }

/* Full-bleed background bands create rhythm without per-card borders. */
.oc-landing .oc-band { position: relative; }
.oc-landing .oc-band::before {
    content: "";
    position: absolute;
    z-index: 0;
    inset: 0 auto 0 50%;
    width: 100vw;
    transform: translateX(-50%);
    background: var(--surface-inset);
}
.oc-landing .oc-band.oc-band-tint::before { background: var(--primary-lighter); }
.oc-landing .oc-band > * { position: relative; z-index: 1; }

/* Vertical rhythm comes from section padding, not shell margins. */
.oc-landing .oc-shell { margin-bottom: 0; }
.oc-landing .oc-public-grid,
.oc-landing .oc-public-reviews,
.oc-landing .oc-faq-panel,
.oc-landing .oc-payment-public,
.oc-landing #class-assessments { padding: var(--space-16) 0; }
.oc-landing .oc-cta-band { margin: var(--space-12) auto var(--space-16); }
.oc-landing .oc-related { padding: var(--space-16) 0; }

/* Flatten panels — no boxes floating on the page. */
.oc-landing .oc-panel,
.oc-landing .oc-public-reviews,
.oc-landing .oc-faq-panel,
.oc-landing .oc-payment-public,
.oc-landing #class-assessments,
.oc-landing .oc-private-grid > .oc-panel,
.oc-landing .oc-location-panel,
.oc-landing .oc-certificate-panel {
    background: transparent;
    border: 0;
    box-shadow: none;
    border-radius: 0;
    padding: 0;
}
.oc-landing .oc-panel-head { border: 0; }
.oc-landing .oc-public-grid h2,
.oc-landing .oc-public-reviews h2,
.oc-landing .oc-faq-panel h2 { font-size: var(--text-2xl); line-height: 1.25; }

/* Story outcome columns — clean top-ruled blurbs, no inner boxes. */
.oc-landing .oc-outcome-grid { gap: var(--space-8); margin-top: var(--space-10); }
.oc-landing .oc-outcome-grid div {
    background: transparent;
    border: 0;
    border-top: 2px solid var(--primary-light);
    box-shadow: none;
    border-radius: 0;
    padding: var(--space-4) 0 0;
    gap: var(--space-2);
}

/* Fit / method lists — icon rows, no boxes. */
.oc-landing .oc-fit-list { gap: var(--space-4); margin-top: var(--space-5); }
.oc-landing .oc-fit-list div,
.oc-landing .oc-method-list div {
    background: transparent;
    border: 0;
    box-shadow: none;
    border-radius: 0;
    padding: 0;
}
.oc-landing .oc-method-list { gap: var(--space-5); }

/* Mentor — the one soft accent card in the story row. */
.oc-landing .oc-mentor-card {
    background: var(--surface-inset);
    border: 0;
    box-shadow: none;
    border-radius: var(--radius-lg);
    padding: var(--space-6);
}

/* Schedule days — flat timeline rows with hairline dividers. */
.oc-landing .oc-schedule-day {
    background: transparent;
    border: 0;
    border-bottom: 1px solid var(--border);
    border-radius: 0;
    padding: var(--space-5) 0;
}
.oc-landing .oc-schedule-day:last-child { border-bottom: 0; }

/* Certificate badge preview pops white against the tint band. */
.oc-landing .oc-certificate-preview {
    background: var(--white);
    border: 1px solid var(--primary-light);
    box-shadow: var(--shadow-sm);
    border-radius: var(--radius-lg);
}

/* Reviews — airy white quote cards on the gray band. */
.oc-landing .oc-review-list { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-5); }
.oc-landing .oc-review {
    background: var(--white);
    border: 0;
    box-shadow: var(--shadow-sm);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
}

/* FAQ — flat rows with hairline dividers. */
.oc-landing .oc-faq-list { gap: 0; }
.oc-landing .oc-faq-list details {
    background: transparent;
    border: 0;
    border-bottom: 1px solid var(--border);
    border-radius: 0;
    padding: var(--space-5) 0;
}

/* Related course mini-cards keep a light card so they read as clickable. */
.oc-landing .oc-course-mini {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xs);
}

/* Functional / logged-in panels stay clearly-bounded cards. The flat band
   treatment is only for the public marketing flow; without this the enrolled
   view (Q&A, docs, ask-mentor, payment, assessments) collapses into one flat
   wall with no padding or separation. This wins over the earlier flatten rule. */
.oc-landing #class-assessments,
.oc-landing #class-qa,
.oc-landing .oc-private-grid > .oc-panel,
.oc-landing .oc-cta-card,
.oc-landing .oc-payment-public {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: var(--space-6);
}
/* Real breathing room between those functional card sections. */
.oc-landing #class-assessments,
.oc-landing #class-qa,
.oc-landing .oc-private-grid,
.oc-landing .oc-payment-public,
.oc-landing .oc-student-next {
    margin-top: var(--space-8);
    margin-bottom: var(--space-8);
}
/* The private grid is a wrapper — its two children are the cards, gap spaces them. */
.oc-landing .oc-private-grid { padding: 0; gap: var(--space-6); }

/* Landing v5 — tighten section rhythm and stack review quotes on mobile. */
@media (max-width: 720px) {
    .oc-landing .oc-public-grid,
    .oc-landing .oc-public-reviews,
    .oc-landing .oc-faq-panel,
    .oc-landing .oc-related { padding: var(--space-10) 0; }
    .oc-landing .oc-review-list { grid-template-columns: 1fr; }
    .oc-landing #class-assessments,
    .oc-landing #class-qa,
    .oc-landing .oc-payment-public { padding: var(--space-5); }
}

/* ===== Browse / discovery page (/courses/classes) ===== */
.oc-browse .oc-shell { margin-bottom: var(--space-6); }
.oc-hero2 { display: flex; align-items: flex-end; justify-content: space-between; gap: var(--space-5); flex-wrap: wrap; padding: var(--space-8) 0 var(--space-5); }
.oc-hero2-text { max-width: 640px; }
.oc-hero2-text h1 { margin: var(--space-2) 0 var(--space-2); font-size: 30px; line-height: 1.2; color: var(--gray-900); font-weight: var(--font-bold); }
.oc-hero2-text p { margin: 0; color: var(--gray-600); line-height: var(--leading-relaxed); }
.oc-hero2-cta { flex-shrink: 0; }

/* organizer stat bar */
.oc-statbar { display: grid; grid-template-columns: repeat(5, 1fr); gap: var(--space-3); }
.oc-stat { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius); padding: var(--space-4); text-align: center; }
.oc-stat b { display: block; font-size: 24px; font-weight: var(--font-bold); color: var(--gray-900); line-height: 1.1; }
.oc-stat span { font-size: var(--text-xs); color: var(--gray-500); }
.oc-stat.warn { border-color: var(--error); background: var(--error-light); }
.oc-stat.warn b { color: var(--error); }

/* filter chips + bar */
.oc-owned-filter, .oc-chips { display: flex; gap: var(--space-2); flex-wrap: wrap; }
.oc-owned-filter { margin-bottom: var(--space-4); }
.oc-chip { border: 1px solid var(--border-strong); background: var(--white); color: var(--gray-700); border-radius: var(--radius-full); padding: 6px 14px; font-size: var(--text-sm); font-weight: var(--font-medium); cursor: pointer; white-space: nowrap; transition: background .15s, color .15s, border-color .15s; }
.oc-chip:hover { border-color: var(--primary); color: var(--primary); }
.oc-chip.on { background: var(--primary); border-color: var(--primary); color: var(--white); }
.oc-chip.warn { border-color: var(--error); color: var(--error); }
.oc-chip.warn.on, .oc-chip.warn:hover { background: var(--error); color: var(--white); }

.oc-filterbar { display: flex; gap: var(--space-3); align-items: center; flex-wrap: wrap; margin-bottom: var(--space-3); }
.oc-search { position: relative; flex: 1 1 240px; }
.oc-search i { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--gray-400); font-size: var(--text-sm); }
.oc-search input { width: 100%; padding: 9px 12px 9px 34px; border: 1px solid var(--border-strong); border-radius: var(--radius); font-size: var(--text-sm); font-family: inherit; }
.oc-search input:focus { outline: none; border-color: var(--primary); }
.oc-sort { padding: 9px 12px; border: 1px solid var(--border-strong); border-radius: var(--radius); font-size: var(--text-sm); font-family: inherit; background: var(--white); color: var(--gray-800); cursor: pointer; }
.oc-count { margin: 0 0 var(--space-4); font-size: var(--text-sm); color: var(--gray-500); }

/* card grid */
.oc-grid2 { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: var(--space-4); }
.oc-card2 { display: flex; flex-direction: column; background: var(--white); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; text-decoration: none; color: inherit; transition: transform .15s, box-shadow .15s, border-color .15s; }
a.oc-card2:hover { transform: translateY(-3px); box-shadow: 0 8px 24px rgba(0,0,0,.08); border-color: var(--border-strong); }
.oc-card2-thumb { position: relative; aspect-ratio: 16/9; background-size: cover; background-position: center; background-color: var(--gray-100); }
.oc-card2-thumb[data-noimg="1"] { background: linear-gradient(135deg, var(--primary-lighter), var(--accent-lighter)); }
.oc-card2-thumb .oc-badge { position: absolute; top: 10px; }
.oc-card2-thumb .oc-fmt { left: 10px; }
.oc-card2-thumb .oc-enrolled { right: 10px; background: var(--success); color: var(--white); }
.oc-card2-thumb .oc-status-published, .oc-card2-thumb .oc-status-draft, .oc-card2-thumb .oc-status-closed, .oc-card2-thumb .oc-status-completed, .oc-card2-thumb .oc-status-archived { right: 10px; text-transform: capitalize; }
.oc-fmt.oc-fmt-online { background: var(--info-light); color: var(--info); }
.oc-fmt.oc-fmt-offline { background: var(--accent-lighter); color: var(--accent); }
.oc-fmt.oc-fmt-hybrid { background: var(--primary-lighter); color: var(--primary); }

.oc-card2-body { padding: var(--space-4); display: flex; flex-direction: column; gap: var(--space-2); flex: 1; }
.oc-card2-body h3 { margin: 0; font-size: var(--text-base); line-height: 1.35; font-weight: var(--font-semibold); color: var(--gray-900); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.oc-card2-sub { margin: 0; font-size: var(--text-sm); color: var(--gray-500); }
.oc-mentor { display: flex; align-items: center; gap: 8px; font-size: var(--text-sm); color: var(--gray-600); }
.oc-mentor img { width: 24px; height: 24px; border-radius: var(--radius-full); object-fit: cover; flex-shrink: 0; }
.oc-mentor span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.oc-card2-meta { display: flex; flex-wrap: wrap; gap: 6px 14px; font-size: var(--text-xs); color: var(--gray-600); margin-top: auto; }
.oc-card2-meta span { display: inline-flex; align-items: center; gap: 5px; }
.oc-card2-meta i { color: var(--gray-400); }
.oc-rating { color: var(--gray-800); font-weight: var(--font-medium); }
.oc-rating i { color: #f5a623 !important; }
.oc-card2-foot { display: flex; align-items: center; justify-content: space-between; gap: var(--space-2); padding-top: var(--space-3); border-top: 1px solid var(--border); margin-top: var(--space-1); }
.oc-price { font-weight: var(--font-bold); color: var(--gray-900); font-size: var(--text-sm); }
.oc-seats { font-size: var(--text-xs); color: var(--success); font-weight: var(--font-medium); }
.oc-seats.full { color: var(--error); }

/* organizer card actions */
.oc-card2-actions { display: flex; align-items: center; gap: var(--space-2); margin-top: var(--space-3); flex-wrap: wrap; }
.oc-attn-link { font-size: var(--text-xs); color: var(--error); font-weight: var(--font-semibold); text-decoration: none; display: inline-flex; align-items: center; gap: 5px; }
.oc-attn-link:hover { text-decoration: underline; }

/* empty states */
.oc-empty-steps { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-3); margin: var(--space-5) 0; }
.oc-empty-steps span { display: inline-flex; align-items: center; gap: 8px; font-size: var(--text-sm); color: var(--gray-700); background: var(--surface-inset); border-radius: var(--radius-full); padding: 8px 16px; }
.oc-empty-steps b { display: inline-flex; align-items: center; justify-content: center; width: 22px; height: 22px; border-radius: var(--radius-full); background: var(--primary); color: var(--white); font-size: var(--text-xs); }
.oc-empty-filter { padding: 40px 24px; }

@media (max-width: 640px) {
  .oc-statbar { grid-template-columns: repeat(2, 1fr); }
  .oc-hero2 { padding-top: var(--space-6); }
  .oc-hero2-text h1 { font-size: 24px; }
}
@media (prefers-reduced-motion: reduce) {
  a.oc-card2:hover { transform: none; }
  .oc-card2, .oc-chip { transition: none; }
}

/* ── Materials panel buttons ──
   These download/deck links are <a class="btn btn-secondary">, and the global
   `a:hover` (design-system.css) darkens link text — turning white-on-dark into
   dark-on-dark on hover. ID-scoped so it wins over a:hover regardless of load order. */
#class-materials .oc-dls .btn-secondary:hover { background: #374151; color: #fff; }
#class-materials .oc-dls .btn-primary:hover { color: #fff; }
#class-materials .oc-dls .btn:hover i { color: #fff; }

/* ── Complete-signup modal (entry assessment + payment) ── */
.oc-enroll-lead { font-size: 14px; color: #475569; margin-bottom: 16px; }
.oc-enroll-step { display: flex; gap: 12px; padding: 14px; border: 1px solid var(--border, #e5e7eb); border-radius: 12px; margin-bottom: 12px; }
.oc-enroll-step.done { background: #f0fdf4; border-color: #bbf7d0; }
.oc-enroll-ic { flex-shrink: 0; width: 34px; height: 34px; border-radius: 9px; background: #eff6ff; color: #2563eb; display: flex; align-items: center; justify-content: center; font-size: 15px; }
.oc-enroll-step.done .oc-enroll-ic { background: #dcfce7; color: #16a34a; }
.oc-enroll-main { flex: 1; min-width: 0; }
.oc-enroll-main strong { display: block; font-size: 14.5px; color: #111827; margin-bottom: 3px; }
.oc-enroll-main p { font-size: 13px; color: #64748b; margin: 0 0 8px; }
.oc-req { display: inline-block; font-size: 10.5px; font-weight: 700; color: #b91c1c; background: #fee2e2; border-radius: 999px; padding: 1px 8px; margin-left: 6px; vertical-align: middle; }
.oc-pay-qr { margin: 6px 0; }
.oc-pay-qr img { max-width: 180px; border: 1px solid var(--border, #e5e7eb); border-radius: 8px; }
.oc-pay-note { font-size: 12.5px; color: #64748b; white-space: pre-line; }
.oc-pay-status { font-size: 13px; color: #16a34a; font-weight: 600; }
.oc-pay-form input[type="file"] { display: block; font-size: 13px; margin-bottom: 10px; max-width: 100%; }
.oc-pay-form .oc-field-label { display: block; font-size: 12.5px; font-weight: 600; color: #374151; margin-bottom: 4px; }
.oc-pay-form input[type="text"] { width: 100%; padding: 8px 10px; border: 1px solid var(--border-strong, #cbd5e1); border-radius: 8px; font-size: 13px; margin-bottom: 10px; }
.oc-enroll-done { background: #f0fdf4; border: 1px solid #bbf7d0; color: #166534; font-size: 13.5px; font-weight: 600; border-radius: 10px; padding: 12px 14px; }
.oc-enroll-done i { color: #16a34a; margin-right: 6px; }

/* ── "send email to a student" dialog ─────────────────────────────────────
   Shared by both design arms: the markup lives in class-manage.php, which both
   render, so the dialog is styled here rather than in either arm's skin. */
.oc-nt[hidden]{display:none}
.oc-nt{position:fixed;inset:0;z-index:1000;display:flex;align-items:center;
  justify-content:center;padding:20px}
.oc-nt-back{position:absolute;inset:0;background:rgba(10,10,10,.55)}
.oc-nt-box{position:relative;background:#fff;width:min(620px,100%);max-height:90vh;
  overflow-y:auto;border:2px solid #0a0a0a;border-radius:0}
.oc-nt-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;
  padding:18px 20px;border-bottom:2px solid #0a0a0a}
.oc-nt-head h2{margin:0;font-size:17px;font-weight:800;letter-spacing:-.02em}
.oc-nt-to{margin:5px 0 0;font-size:13px;color:#6b7280}
.oc-nt-x{background:none;border:0;font-size:26px;line-height:1;cursor:pointer;color:#6b7280;
  padding:0 4px}
.oc-nt-x:hover{color:#0a0a0a}
.oc-nt-body{padding:18px 20px 20px;display:flex;flex-direction:column}
.oc-nt-l{font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;font-weight:800;
  color:#9aa1ab;margin-bottom:6px}
.oc-nt-sel,.oc-nt-in,.oc-nt-ta{font-family:inherit;font-size:14px;padding:10px 12px;
  border:2px solid #e6e6e6;border-radius:0;background:#fff;color:#0a0a0a;width:100%}
.oc-nt-sel:focus,.oc-nt-in:focus,.oc-nt-ta:focus{border-color:#0a0a0a;outline:none}
.oc-nt-ta{resize:vertical;line-height:1.6;min-height:220px}
.oc-nt-in,.oc-nt-ta{margin-bottom:16px}
.oc-nt-sel{margin-bottom:8px}
.oc-nt-note{font-size:12.5px;color:#b4470f;margin:0 0 16px;font-weight:700}
.oc-nt-note.is-quiet{color:#6b7280;font-weight:600}
.oc-nt-hint{font-size:12px;color:#9aa1ab;margin:0 0 16px}
.oc-nt-foot{display:flex;gap:10px;justify-content:flex-end;flex-wrap:wrap}
.oc-notify-open{margin-bottom:6px}

/* Roster row controls: one line, not four. The payment select saves on change
   (offline-classes.js removes its Lưu button), and every action for the row
   sits together in the actions cell. */
.oc-payform{display:flex;align-items:center;gap:7px;flex-wrap:wrap}
.oc-rowacts{display:flex;align-items:center;gap:7px;flex-wrap:wrap}
.oc-rowacts .oc-inline-form{display:flex;gap:7px;margin:0}
.oc-notify-open{margin-bottom:0}
/* "we already wrote to this person, and about what" */
.oc-sent{display:inline-block;margin-top:5px;font-size:11px;font-weight:700;
  letter-spacing:.02em;color:#0f7a4a;border:1px solid currentColor;padding:1px 6px;
  border-radius:0;cursor:help}

/* ── class-manager head: identity, then meta, then the numbers ────────────
   Base layout, shared by both design arms. The title no longer competes with
   the action buttons for one row, so a long class name cannot break it. */
.oc-page-head{display:block}
.oc-head-id{margin-bottom:12px}
.oc-head-meta{display:flex;align-items:center;justify-content:space-between;gap:14px;
  flex-wrap:wrap;padding-top:12px;border-top:1px solid #e6e6e6}
.oc-head-what{display:flex;align-items:center;gap:10px;flex-wrap:wrap;min-width:0}
.oc-head-course{font-size:13.5px;color:#6b7280}
.oc-page-head .oc-actions{display:flex;gap:8px;flex-wrap:wrap}
/* The four figures the head carries into every tab — the metric grid only
   exists on Tổng quan, so without these you lose the class's state the moment
   you open Học viên. */
/* Hugs its four cells rather than stretching: spread across a 1240px page the
   figures drift apart and stop reading as one group, and the empty right-hand
   two-thirds looks like something failed to load. */
.oc-head-facts{display:flex;flex-wrap:wrap;gap:0;margin-top:14px;border:1px solid #e6e6e6;
  width:max-content;max-width:100%}
.oc-head-fact{padding:10px 16px;border-right:1px solid #e6e6e6;min-width:110px}
.oc-head-fact:last-child{border-right:0}
.oc-head-fact b{display:block;font-size:19px;font-weight:800;letter-spacing:-.03em;
  line-height:1.1;font-variant-numeric:tabular-nums}
.oc-head-fact span{display:block;font-size:10px;letter-spacing:.13em;text-transform:uppercase;
  font-weight:700;color:#9aa1ab;margin-top:3px}
.oc-head-fact.warn b{color:#b4470f}
@media (max-width:560px){
  .oc-head-facts{width:100%}
  .oc-head-fact{flex:1 1 50%;min-width:0;border-bottom:1px solid #e6e6e6}
  .oc-head-fact:nth-child(2n){border-right:0}
  .oc-head-fact:nth-last-child(-n+2){border-bottom:0}
}

/* ── class answer matrix (old arm) ───────────────────────────────────────
   The flat arm styles this in manage-flat.css. $pageCssOverride REPLACES the
   page sheet rather than adding to it, so the two arms never share a file and
   a rule written once lands on only one of them — this is the old arm's copy.
   Reading a class's answers is a capability, not a design being tested, so it
   has to look right in both. */
.oc-mx { width: 100%; border-collapse: collapse; font-size: 13px; min-width: 560px; }
.oc-mx th { text-align: left; font-size: 11px; text-transform: uppercase; letter-spacing: .04em;
    font-weight: 700; color: var(--gray-500); padding: 0 10px 8px;
    border-bottom: 1px solid var(--border); }
.oc-mx th.n, .oc-mx td.n { text-align: right; white-space: nowrap; }
.oc-mx th.p, .oc-mx td.p { text-align: center; width: 34px; }
.oc-mx td { padding: 9px 10px; border-bottom: 1px solid var(--gray-100); vertical-align: middle; }
.oc-mx tr:last-child td { border-bottom: 0; }
.oc-mx-t { display: block; margin-top: 3px; font-size: 11px; text-transform: uppercase;
    letter-spacing: .04em; font-weight: 600; color: var(--gray-500); }
.oc-mx td.n b { font-size: 14px; font-weight: 700; }
.oc-mx td.n b.lo { color: var(--error); }
.oc-mx-v { display: inline-flex; align-items: center; justify-content: center;
    width: 26px; height: 26px; border-radius: var(--radius-sm, 6px);
    font-size: 11px; font-weight: 700; color: var(--ans-ink); }
.oc-mx-v.v1 { background: var(--ans-1); }
.oc-mx-v.v2 { background: var(--ans-2); }
.oc-mx-v.v3 { background: var(--ans-3); }
.oc-mx-v.v4 { background: var(--ans-4); }
.oc-mx-v.v5 { background: var(--ans-5); }
.oc-mx-v.is-none { background: var(--gray-100); color: var(--gray-400); }
.oc-mx-key { margin-top: 12px; }