/*
 * NFA Academy — Phase 8 Styles
 * Classroom Tools: Assignments · Discussions · Group Activities · Announcements
 *
 * Shares the NFA brand token system from lesson-viewer.css / phase7.css.
 * Fallbacks defined on .nfa-classroom-wrap for standalone use.
 */

/* ── Token fallbacks ───────────────────────────────────────────────────────── */
.nfa-my-assignments,
.nfa-class-assignments,
.nfa-class-discussions,
.nfa-student-announcements,
.nfa-class-announcements,
.nfa-group-activity,
.nfa-teacher-panel {
    --nfa-navy:   #1e2855;
    --nfa-gold:   #E8C84A;
    --nfa-green:  #1A5C2E;
    --nfa-rust:   #8B3A1A;
    --nfa-cream:  #FAF8F2;
    --nfa-text:   #1a1a1a;
    --nfa-muted:  #666;
    --nfa-border: #ddd;
    --ff-display: 'Playfair Display', Georgia, serif;
    --ff-body:    'Source Serif 4', Georgia, serif;
    --ff-mono:    'Space Mono', monospace;
    font-family: var(--ff-body);
    color: var(--nfa-text);
}

/* ════════════════════════════════════════════════════════════════════════════
   SHARED TEACHER PANEL CHROME
   ════════════════════════════════════════════════════════════════════════════ */

.nfa-teacher-panel {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 20px 60px;
}

.nfa-teacher-header {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    padding: 28px 0 20px;
    border-bottom: 2px solid var(--nfa-border);
    margin-bottom: 24px;
}

.nfa-teacher-header h2 {
    font-family: var(--ff-display);
    font-size: 1.7rem;
    color: var(--nfa-navy);
    margin: 0;
    flex: 1;
    min-width: 160px;
}

.nfa-class-switcher {
    padding: 8px 12px;
    border: 1.5px solid var(--nfa-border);
    border-radius: 3px;
    font-size: 0.9rem;
    min-width: 180px;
    background: #fff;
    color: var(--nfa-text);
}

/* ── Shared button styles ──────────────────────────────────────────────────── */
.nfa-btn-primary {
    padding: 10px 20px;
    background: var(--nfa-navy);
    color: var(--nfa-gold);
    font-family: var(--ff-mono);
    font-size: 0.8rem;
    font-weight: 700;
    border: none;
    border-radius: 3px;
    cursor: pointer;
    letter-spacing: .04em;
    transition: background .15s;
    white-space: nowrap;
}
.nfa-btn-primary:hover { background: #2a3870; }

.nfa-btn-sm {
    padding: 5px 12px;
    font-family: var(--ff-mono);
    font-size: 0.72rem;
    font-weight: 700;
    border: 1.5px solid var(--nfa-border);
    border-radius: 3px;
    background: #fff;
    color: var(--nfa-navy);
    cursor: pointer;
    transition: background .15s, border-color .15s;
    white-space: nowrap;
}
.nfa-btn-sm:hover { background: var(--nfa-cream); border-color: var(--nfa-navy); }

.nfa-btn-cancel {
    padding: 10px 16px;
    background: none;
    border: 1.5px solid var(--nfa-border);
    border-radius: 3px;
    font-family: var(--ff-mono);
    font-size: 0.8rem;
    color: var(--nfa-muted);
    cursor: pointer;
}
.nfa-btn-cancel:hover { border-color: var(--nfa-navy); color: var(--nfa-navy); }

/* ── Shared form grid ──────────────────────────────────────────────────────── */
.nfa-create-assignment-form,
.nfa-create-discussion-form,
.nfa-create-announcement-form {
    background: var(--nfa-cream);
    border: 1.5px solid var(--nfa-border);
    border-radius: 4px;
    padding: 24px;
    margin-bottom: 28px;
}

.nfa-create-assignment-form h3,
.nfa-create-discussion-form h3,
.nfa-create-announcement-form h3 {
    font-family: var(--ff-display);
    font-size: 1.1rem;
    color: var(--nfa-navy);
    margin: 0 0 18px;
}

.nfa-form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 18px;
}

.nfa-form-field {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

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

.nfa-form-field label {
    font-family: var(--ff-mono);
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .07em;
    color: var(--nfa-muted);
}

.nfa-form-field input[type="text"],
.nfa-form-field input[type="number"],
.nfa-form-field input[type="date"],
.nfa-form-field input[type="datetime-local"],
.nfa-form-field select,
.nfa-form-field textarea {
    width: 100%;
    padding: 9px 12px;
    border: 1.5px solid var(--nfa-border);
    border-radius: 3px;
    font-family: var(--ff-body);
    font-size: 0.9rem;
    background: #fff;
    color: var(--nfa-text);
    box-sizing: border-box;
    transition: border-color .15s;
}

.nfa-form-field input:focus,
.nfa-form-field select:focus,
.nfa-form-field textarea:focus {
    outline: none;
    border-color: var(--nfa-navy);
    box-shadow: 0 0 0 2px rgba(30,40,85,.1);
}

.nfa-form-actions {
    display: flex;
    gap: 10px;
    align-items: center;
    margin-top: 4px;
}

.nfa-form-feedback {
    margin-top: 10px;
    font-size: 0.85rem;
    min-height: 20px;
}
.nfa-form-feedback.success { color: #2e7d32; }
.nfa-form-feedback.error   { color: #c62828; }

.nfa-assign-to-radios,
.nfa-radio-label {
    display: flex;
    align-items: center;
    gap: 18px;
    font-size: 0.9rem;
}

.nfa-student-checkboxes {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 6px;
}

.nfa-student-check {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border: 1.5px solid var(--nfa-border);
    border-radius: 20px;
    font-size: 0.85rem;
    cursor: pointer;
    transition: border-color .15s;
}
.nfa-student-check:hover { border-color: var(--nfa-navy); }

.nfa-required { color: #c62828; }

/* ── Empty / login states ──────────────────────────────────────────────────── */
.nfa-assignments-empty,
.nfa-empty-msg {
    padding: 40px;
    text-align: center;
    background: var(--nfa-cream);
    border: 1.5px dashed var(--nfa-border);
    border-radius: 4px;
    color: var(--nfa-muted);
    font-size: 0.95rem;
}

.nfa-login-prompt { font-style: italic; color: var(--nfa-muted); }

/* ════════════════════════════════════════════════════════════════════════════
   8.1 — ASSIGNMENTS
   ════════════════════════════════════════════════════════════════════════════ */

.nfa-assignments-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
}

.nfa-assignments-title {
    font-family: var(--ff-display);
    font-size: 1.7rem;
    color: var(--nfa-navy);
    margin: 0;
}

.nfa-assignments-badge {
    background: var(--nfa-rust);
    color: #fff;
    font-family: var(--ff-mono);
    font-size: 0.72rem;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 10px;
}

/* Assignment section */
.nfa-assignment-section { margin-bottom: 36px; }

.nfa-assignment-section-title {
    font-family: var(--ff-mono);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .1em;
    color: var(--nfa-muted);
    margin: 0 0 12px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--nfa-border);
}

/* Assignment card */
.nfa-assignment-card {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 18px 20px;
    background: #fff;
    border: 1.5px solid var(--nfa-border);
    border-radius: 4px;
    margin-bottom: 10px;
    border-left: 4px solid var(--nfa-border);
    transition: box-shadow .2s;
}
.nfa-assignment-card:hover { box-shadow: 0 3px 12px rgba(0,0,0,.07); }

.nfa-asgn-status-submitted  { border-left-color: #1565c0; }
.nfa-asgn-status-in_progress{ border-left-color: #f57f17; }
.nfa-asgn-status-graded     { border-left-color: var(--nfa-green); }

.nfa-asgn-left { flex: 1; min-width: 0; }
.nfa-asgn-right { flex-shrink: 0; display: flex; flex-direction: column; align-items: flex-end; gap: 8px; }

.nfa-asgn-subject {
    font-family: var(--ff-display);
    font-size: 1rem;
    font-weight: 700;
    color: var(--nfa-navy);
    margin-bottom: 3px;
}

.nfa-asgn-letter {
    font-family: var(--ff-mono);
    font-size: 0.78rem;
    font-weight: 400;
    color: var(--nfa-muted);
}

.nfa-asgn-title {
    font-size: 0.88rem;
    color: var(--nfa-text);
    margin-bottom: 4px;
}

.nfa-asgn-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    font-family: var(--ff-mono);
    font-size: 0.72rem;
    color: var(--nfa-muted);
    margin-top: 4px;
}

.nfa-asgn-due.past-due { color: #c62828; font-weight: 700; }
.nfa-asgn-points { color: var(--nfa-navy); }

.nfa-asgn-instructions {
    margin-top: 8px;
    font-size: 0.85rem;
}
.nfa-asgn-instructions summary {
    cursor: pointer;
    font-family: var(--ff-mono);
    font-size: 0.72rem;
    color: var(--nfa-muted);
    list-style: none;
}
.nfa-asgn-instructions summary::-webkit-details-marker { display: none; }
.nfa-asgn-instructions p { margin: 8px 0 0; padding: 10px; background: var(--nfa-cream); border-radius: 3px; }

/* Status badge */
.nfa-asgn-status-badge {
    font-family: var(--ff-mono);
    font-size: 0.68rem;
    font-weight: 700;
    padding: 3px 9px;
    border-radius: 10px;
    text-transform: uppercase;
    letter-spacing: .05em;
}
.nfa-badge-not-started  { background: #f5f5f5;  color: #9e9e9e; border: 1px solid #e0e0e0; }
.nfa-badge-in-progress  { background: #fff8e1;  color: #e65100; border: 1px solid #ffcc80; }
.nfa-badge-submitted    { background: #e3f2fd;  color: #1565c0; border: 1px solid #90caf9; }
.nfa-badge-graded       { background: #e8f5e9;  color: #1b5e20; border: 1px solid #a5d6a7; }

.nfa-asgn-btn {
    padding: 8px 16px;
    background: var(--nfa-navy);
    color: var(--nfa-gold);
    font-family: var(--ff-mono);
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: 3px;
    text-decoration: none;
    letter-spacing: .03em;
    transition: background .15s;
}
.nfa-asgn-btn:hover { background: #2a3870; }

.nfa-asgn-submitted-note {
    font-family: var(--ff-mono);
    font-size: 0.72rem;
    color: #1565c0;
}

.nfa-asgn-grade {
    font-family: var(--ff-mono);
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--nfa-green);
}

.nfa-asgn-teacher-note {
    font-size: 0.82rem;
    font-style: italic;
    color: var(--nfa-muted);
    max-width: 200px;
    text-align: right;
}

/* Teacher assignment card */
.nfa-teacher-assignment-card {
    background: #fff;
    border: 1.5px solid var(--nfa-border);
    border-radius: 4px;
    padding: 18px 20px;
    margin-bottom: 14px;
}

.nfa-ta-head { margin-bottom: 10px; }
.nfa-ta-title-row { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; margin-bottom: 4px; }
.nfa-ta-subject { font-family: var(--ff-display); font-weight: 700; font-size: 1rem; color: var(--nfa-navy); }
.nfa-ta-custom-title { font-size: 0.88rem; color: var(--nfa-muted); }
.nfa-ta-meta { display: flex; gap: 12px; font-family: var(--ff-mono); font-size: 0.72rem; color: var(--nfa-muted); flex-wrap: wrap; }
.nfa-late-flag { color: #c62828; font-weight: 700; }

/* Progress bar */
.nfa-ta-progress-wrap { margin-bottom: 12px; }
.nfa-ta-progress-bar {
    height: 6px;
    background: #e0e0e0;
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 4px;
}
.nfa-ta-progress-fill {
    height: 100%;
    background: var(--nfa-green);
    border-radius: 3px;
    transition: width .4s ease;
}
.nfa-ta-progress-label {
    font-family: var(--ff-mono);
    font-size: 0.72rem;
    color: var(--nfa-muted);
}

/* Student detail table */
.nfa-ta-student-detail { margin-top: 10px; }
.nfa-ta-student-detail summary {
    font-family: var(--ff-mono);
    font-size: 0.72rem;
    color: var(--nfa-navy);
    cursor: pointer;
    padding: 6px 0;
    list-style: none;
}
.nfa-ta-student-detail summary::-webkit-details-marker { display: none; }

.nfa-ta-student-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
    margin-top: 10px;
}
.nfa-ta-student-table th {
    font-family: var(--ff-mono);
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--nfa-muted);
    padding: 6px 10px;
    text-align: left;
    border-bottom: 1.5px solid var(--nfa-border);
}
.nfa-ta-student-table td {
    padding: 8px 10px;
    border-bottom: 1px solid #f0f0f0;
    vertical-align: middle;
}
.nfa-ta-student-table tr:last-child td { border-bottom: none; }

.nfa-status-pill {
    font-family: var(--ff-mono);
    font-size: 0.65rem;
    padding: 2px 8px;
    border-radius: 10px;
}
.nfa-pill-not_started  { background: #f5f5f5; color: #9e9e9e; }
.nfa-pill-in_progress  { background: #fff8e1; color: #e65100; }
.nfa-pill-submitted    { background: #e3f2fd; color: #1565c0; }
.nfa-pill-graded       { background: #e8f5e9; color: #1b5e20; }

.nfa-late-badge {
    font-family: var(--ff-mono);
    font-size: 0.62rem;
    font-weight: 700;
    padding: 1px 6px;
    background: #ffebee;
    color: #c62828;
    border: 1px solid #ef9a9a;
    border-radius: 3px;
    margin-left: 4px;
}

.nfa-grade-input {
    width: 70px;
    padding: 4px 8px;
    border: 1.5px solid var(--nfa-border);
    border-radius: 3px;
    font-size: 0.85rem;
}

.nfa-ta-actions {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid #f0f0f0;
    display: flex;
    gap: 8px;
}

/* ════════════════════════════════════════════════════════════════════════════
   8.2 — DISCUSSIONS
   ════════════════════════════════════════════════════════════════════════════ */

/* Student lesson panel */
.nfa-discussion-section { margin-top: 40px; }

.nfa-section-label {
    font-family: var(--ff-mono);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .1em;
    color: var(--nfa-muted);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 7px;
}

.nfa-section-icon { font-size: 1rem; }

.nfa-discussion-prompt {
    background: #fff;
    border: 1.5px solid var(--nfa-border);
    border-radius: 4px;
    padding: 20px;
    margin-bottom: 16px;
    border-top: 3px solid var(--nfa-navy);
}

.nfa-disc-context {
    background: var(--nfa-cream);
    border-left: 3px solid var(--nfa-gold);
    padding: 10px 14px;
    font-size: 0.88rem;
    font-style: italic;
    color: var(--nfa-muted);
    margin-bottom: 14px;
    border-radius: 0 3px 3px 0;
}

.nfa-disc-question {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    margin-bottom: 16px;
}
.nfa-disc-icon { font-size: 1.1rem; flex-shrink: 0; margin-top: 2px; }
.nfa-disc-question p {
    font-family: var(--ff-display);
    font-size: 1.02rem;
    color: var(--nfa-navy);
    margin: 0;
    line-height: 1.45;
}

/* Exemplar */
.nfa-disc-exemplar {
    background: #fffbef;
    border: 1.5px solid #f0c040;
    border-radius: 3px;
    padding: 14px 16px;
    margin-bottom: 16px;
}
.nfa-disc-exemplar-label {
    font-family: var(--ff-mono);
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: #9e7800;
    margin-bottom: 8px;
}
.nfa-disc-exemplar-text {
    margin: 0;
    font-style: italic;
    font-size: 0.9rem;
    line-height: 1.6;
    border-left: 3px solid var(--nfa-gold);
    padding-left: 12px;
}

/* Submitted response */
.nfa-disc-submitted {
    background: var(--nfa-cream);
    border: 1px solid var(--nfa-border);
    border-radius: 3px;
    padding: 14px 16px;
}
.nfa-disc-submitted-label {
    font-family: var(--ff-mono);
    font-size: 0.68rem;
    font-weight: 700;
    color: var(--nfa-green);
    text-transform: uppercase;
    letter-spacing: .07em;
    margin-bottom: 6px;
}
.nfa-disc-submitted-text { margin: 0; font-size: 0.9rem; line-height: 1.55; }
.nfa-disc-teacher-comment {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--nfa-border);
    font-size: 0.85rem;
}
.nfa-disc-comment-label { font-family: var(--ff-mono); font-size: 0.68rem; color: var(--nfa-muted); }

/* Response textarea */
.nfa-disc-textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1.5px solid var(--nfa-border);
    border-radius: 3px;
    font-family: var(--ff-body);
    font-size: 0.9rem;
    resize: vertical;
    box-sizing: border-box;
    transition: border-color .15s;
}
.nfa-disc-textarea:focus { outline: none; border-color: var(--nfa-navy); }

.nfa-disc-form-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 8px;
}
.nfa-disc-wc { font-family: var(--ff-mono); font-size: 0.72rem; color: var(--nfa-muted); }

.nfa-disc-submit-btn {
    padding: 9px 20px;
    background: var(--nfa-navy);
    color: var(--nfa-gold);
    font-family: var(--ff-mono);
    font-size: 0.78rem;
    font-weight: 700;
    border: none;
    border-radius: 3px;
    cursor: pointer;
    letter-spacing: .03em;
    transition: background .15s;
}
.nfa-disc-submit-btn:hover { background: #2a3870; }

.nfa-disc-feedback {
    margin-top: 8px;
    font-size: 0.85rem;
    min-height: 20px;
}

/* Teacher discussion card */
.nfa-teacher-discussion-card {
    background: #fff;
    border: 1.5px solid var(--nfa-border);
    border-radius: 4px;
    padding: 18px 20px;
    margin-bottom: 14px;
}
.nfa-td-head { margin-bottom: 8px; }
.nfa-td-prompt {
    font-family: var(--ff-display);
    font-size: 0.97rem;
    color: var(--nfa-navy);
    margin-bottom: 6px;
    line-height: 1.4;
}
.nfa-td-meta {
    display: flex;
    gap: 10px;
    align-items: center;
    font-family: var(--ff-mono);
    font-size: 0.72rem;
    color: var(--nfa-muted);
    flex-wrap: wrap;
}
.nfa-disc-lesson-tag {
    background: var(--nfa-cream);
    padding: 2px 8px;
    border-radius: 10px;
    border: 1px solid var(--nfa-border);
}
.nfa-disc-count { color: var(--nfa-muted); }

/* Teacher response review */
.nfa-td-responses { margin-top: 12px; }
.nfa-td-responses summary {
    font-family: var(--ff-mono);
    font-size: 0.72rem;
    color: var(--nfa-navy);
    cursor: pointer;
    list-style: none;
    padding: 4px 0;
}
.nfa-td-responses summary::-webkit-details-marker { display: none; }

.nfa-td-response-list { margin-top: 12px; }
.nfa-td-response {
    border: 1px solid var(--nfa-border);
    border-radius: 3px;
    padding: 12px 14px;
    margin-bottom: 10px;
    background: var(--nfa-cream);
}
.nfa-td-response.is-exemplar { border-color: #f0c040; background: #fffbef; }

.nfa-td-response-head {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 6px;
    font-size: 0.85rem;
}
.nfa-td-response-date { font-family: var(--ff-mono); font-size: 0.68rem; color: var(--nfa-muted); }
.nfa-exemplar-badge {
    font-family: var(--ff-mono);
    font-size: 0.65rem;
    background: #fff3e0;
    color: #e65100;
    padding: 2px 7px;
    border-radius: 10px;
    border: 1px solid #ffcc80;
}

.nfa-td-response-text { margin: 0 0 8px; font-size: 0.88rem; line-height: 1.55; }
.nfa-td-comment { font-size: 0.82rem; font-style: italic; color: var(--nfa-muted); margin-bottom: 8px; }

.nfa-td-response-actions {
    display: flex;
    gap: 8px;
    align-items: flex-start;
    flex-wrap: wrap;
    padding-top: 8px;
    border-top: 1px solid #e0e0e0;
}
.nfa-td-comment-input {
    flex: 1;
    min-width: 160px;
    padding: 6px 10px;
    border: 1.5px solid var(--nfa-border);
    border-radius: 3px;
    font-family: var(--ff-body);
    font-size: 0.85rem;
    resize: vertical;
    min-height: 36px;
}

/* ════════════════════════════════════════════════════════════════════════════
   8.3 — GROUP ACTIVITIES
   ════════════════════════════════════════════════════════════════════════════ */

.nfa-group-activity {
    margin-top: 40px;
    border: 1.5px solid var(--nfa-border);
    border-radius: 4px;
    padding: 24px;
    background: #fff;
    border-top: 3px solid var(--nfa-rust);
}

.nfa-activity-title {
    font-family: var(--ff-display);
    font-size: 1.1rem;
    color: var(--nfa-navy);
    margin: 0 0 6px;
}
.nfa-activity-instructions { font-size: 0.9rem; color: var(--nfa-muted); margin-bottom: 16px; }

/* Compare & Contrast */
.nfa-compare-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 16px;
}
@media (max-width: 600px) { .nfa-compare-grid { grid-template-columns: 1fr; } }

.nfa-compare-header {
    font-family: var(--ff-display);
    font-weight: 700;
    font-size: 1rem;
    color: var(--nfa-navy);
    padding-bottom: 8px;
    border-bottom: 2px solid var(--nfa-navy);
    margin-bottom: 12px;
}

.nfa-compare-col { background: var(--nfa-cream); padding: 14px; border-radius: 3px; }

.nfa-compare-field {
    margin-bottom: 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.nfa-compare-field label {
    font-family: var(--ff-mono);
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .07em;
    color: var(--nfa-muted);
}
.nfa-compare-field textarea {
    width: 100%;
    padding: 8px;
    border: 1.5px solid var(--nfa-border);
    border-radius: 3px;
    font-family: var(--ff-body);
    font-size: 0.85rem;
    resize: vertical;
    box-sizing: border-box;
}

.nfa-compare-synthesis {
    margin-bottom: 16px;
    display: flex;
    flex-direction: column;
    gap: 5px;
}
.nfa-compare-synthesis label {
    font-family: var(--ff-mono);
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .07em;
    color: var(--nfa-muted);
}
.nfa-compare-synthesis textarea {
    width: 100%;
    padding: 10px;
    border: 1.5px solid var(--nfa-border);
    border-radius: 3px;
    font-family: var(--ff-body);
    font-size: 0.9rem;
    resize: vertical;
    box-sizing: border-box;
}

/* Timeline */
.nfa-timeline-builder { margin-bottom: 16px; }
.nfa-timeline-events { display: flex; flex-direction: column; gap: 12px; margin-bottom: 12px; }
.nfa-timeline-event {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    background: var(--nfa-cream);
    border: 1px solid var(--nfa-border);
    border-radius: 3px;
    padding: 12px;
}

.nfa-timeline-marker {
    flex-shrink: 0;
    width: 30px; height: 30px;
    border-radius: 50%;
    background: var(--nfa-navy);
    color: var(--nfa-gold);
    display: flex; align-items: center; justify-content: center;
    font-family: var(--ff-mono);
    font-weight: 700;
    font-size: 0.8rem;
}

.nfa-timeline-fields { flex: 1; display: flex; flex-direction: column; gap: 6px; }
.nfa-timeline-fields input,
.nfa-timeline-fields textarea {
    width: 100%;
    padding: 6px 10px;
    border: 1.5px solid var(--nfa-border);
    border-radius: 3px;
    font-family: var(--ff-body);
    font-size: 0.85rem;
    box-sizing: border-box;
    resize: vertical;
}
.nfa-tl-year { max-width: 140px; }
.nfa-tl-remove {
    background: none;
    border: none;
    font-size: 1rem;
    cursor: pointer;
    color: var(--nfa-muted);
    padding: 4px;
    flex-shrink: 0;
    margin-top: 4px;
}
.nfa-tl-remove:hover { color: #c62828; }
.nfa-tl-add-event { align-self: flex-start; }

/* Domain map */
.nfa-domain-map-instruction { font-size: 0.9rem; color: var(--nfa-muted); margin-bottom: 14px; }
.nfa-domain-map-entries { display: flex; flex-direction: column; gap: 10px; margin-bottom: 16px; }
.nfa-domain-map-row {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    padding: 10px;
    background: var(--nfa-cream);
    border: 1px solid var(--nfa-border);
    border-radius: 3px;
}
.nfa-domain-map-check {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 6px;
    min-width: 160px;
    font-size: 0.88rem;
    cursor: pointer;
    padding-top: 4px;
}
.nfa-domain-explanation {
    flex: 1;
    padding: 6px 10px;
    border: 1.5px solid var(--nfa-border);
    border-radius: 3px;
    font-family: var(--ff-body);
    font-size: 0.85rem;
    resize: vertical;
    transition: border-color .15s;
}
.nfa-domain-explanation:disabled { background: #f5f5f5; color: #ccc; }

.nfa-domain-map-synthesis {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 16px;
}
.nfa-domain-map-synthesis label {
    font-family: var(--ff-mono);
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .07em;
    color: var(--nfa-muted);
}
.nfa-domain-map-synthesis select,
.nfa-domain-map-synthesis textarea {
    width: 100%;
    max-width: 460px;
    padding: 8px 12px;
    border: 1.5px solid var(--nfa-border);
    border-radius: 3px;
    font-family: var(--ff-body);
    font-size: 0.9rem;
    box-sizing: border-box;
}

/* Activity submit button */
.nfa-activity-submit {
    padding: 10px 24px;
    background: var(--nfa-navy);
    color: var(--nfa-gold);
    font-family: var(--ff-mono);
    font-size: 0.8rem;
    font-weight: 700;
    border: none;
    border-radius: 3px;
    cursor: pointer;
    letter-spacing: .04em;
    transition: background .15s;
}
.nfa-activity-submit:hover { background: #2a3870; }
.nfa-activity-feedback { margin-top: 10px; font-size: 0.85rem; min-height: 20px; }

/* Submitted state */
.nfa-activity-submitted {
    background: var(--nfa-cream);
    border: 1.5px solid #a5d6a7;
    border-radius: 3px;
    padding: 14px 16px;
}
.nfa-activity-submitted-label {
    font-family: var(--ff-mono);
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--nfa-green);
    text-transform: uppercase;
    letter-spacing: .07em;
    margin-bottom: 6px;
}
.nfa-activity-summary { font-size: 0.88rem; color: var(--nfa-muted); margin: 0 0 6px; }
.nfa-activity-grade { font-family: var(--ff-mono); font-size: 0.85rem; font-weight: 700; color: var(--nfa-navy); margin-top: 8px; }
.nfa-activity-comment { font-style: italic; font-weight: 400; color: var(--nfa-muted); margin: 4px 0 0; font-size: 0.82rem; }

/* Synthesis view */
.nfa-synthesis-view { max-width: 800px; }
.nfa-synth-meta { font-family: var(--ff-mono); font-size: 0.75rem; color: var(--nfa-muted); margin-bottom: 16px; }
.nfa-synth-submission {
    border: 1px solid var(--nfa-border);
    border-radius: 3px;
    padding: 12px 14px;
    margin-bottom: 12px;
    background: var(--nfa-cream);
}
.nfa-synth-student {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 6px;
    font-size: 0.88rem;
}
.nfa-synth-grade { font-family: var(--ff-mono); font-size: 0.72rem; color: var(--nfa-green); }
.nfa-synth-grade-row { display: flex; gap: 8px; align-items: center; margin-top: 8px; flex-wrap: wrap; }
.nfa-comment-input {
    flex: 1; min-width: 140px;
    padding: 5px 8px;
    border: 1.5px solid var(--nfa-border);
    border-radius: 3px;
    font-size: 0.85rem;
}

/* ════════════════════════════════════════════════════════════════════════════
   8.4 — ANNOUNCEMENTS
   ════════════════════════════════════════════════════════════════════════════ */

.nfa-ann-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.nfa-ann-title {
    font-family: var(--ff-display);
    font-size: 1.5rem;
    color: var(--nfa-navy);
    margin: 0;
    flex: 1;
}

.nfa-ann-unread-badge {
    background: var(--nfa-rust);
    color: #fff;
    font-family: var(--ff-mono);
    font-size: 0.72rem;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 10px;
    animation: nfa-pulse 2s ease-in-out 2;
}

@keyframes nfa-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

.nfa-ann-list { display: flex; flex-direction: column; gap: 12px; }

.nfa-ann-card {
    background: #fff;
    border: 1.5px solid var(--nfa-border);
    border-radius: 4px;
    padding: 18px 20px;
    position: relative;
    transition: box-shadow .2s;
}
.nfa-ann-card:hover { box-shadow: 0 3px 12px rgba(0,0,0,.07); }
.nfa-ann-card.is-pinned { border-left: 4px solid var(--nfa-gold); }
.nfa-ann-card.is-new { border-left: 4px solid var(--nfa-rust); }

.nfa-ann-pin-label {
    position: absolute;
    top: 12px;
    right: 14px;
    font-size: 0.9rem;
}

.nfa-ann-new-dot {
    display: inline-block;
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--nfa-rust);
    margin-right: 6px;
    vertical-align: middle;
}

.nfa-ann-card-head {
    display: flex;
    align-items: baseline;
    gap: 12px;
    margin-bottom: 8px;
    flex-wrap: wrap;
}

.nfa-ann-card-title {
    font-family: var(--ff-display);
    font-size: 1rem;
    font-weight: 700;
    color: var(--nfa-navy);
    margin: 0;
    flex: 1;
}

.nfa-ann-date {
    font-family: var(--ff-mono);
    font-size: 0.68rem;
    color: var(--nfa-muted);
    flex-shrink: 0;
}

.nfa-ann-body {
    font-size: 0.92rem;
    line-height: 1.65;
    color: var(--nfa-text);
}

.nfa-ann-expired-note {
    font-family: var(--ff-mono);
    font-size: 0.68rem;
    color: var(--nfa-muted);
    margin-top: 8px;
    font-style: italic;
}

.nfa-ann-archive-link {
    display: inline-block;
    margin-top: 16px;
    font-family: var(--ff-mono);
    font-size: 0.78rem;
    color: var(--nfa-navy);
    text-decoration: none;
}
.nfa-ann-archive-link:hover { text-decoration: underline; }

/* Teacher announcement list */
.nfa-ann-teacher-list { display: flex; flex-direction: column; gap: 10px; }
.nfa-ann-teacher-card {
    background: #fff;
    border: 1.5px solid var(--nfa-border);
    border-radius: 4px;
    padding: 14px 18px;
}
.nfa-ann-teacher-card.is-expired { opacity: 0.6; }
.nfa-ann-tc-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 4px; }
.nfa-ann-tc-head time { font-family: var(--ff-mono); font-size: 0.68rem; color: var(--nfa-muted); }
.nfa-expired-tag {
    font-family: var(--ff-mono);
    font-size: 0.65rem;
    background: #f5f5f5;
    color: var(--nfa-muted);
    padding: 2px 7px;
    border-radius: 3px;
    border: 1px solid var(--nfa-border);
}
.nfa-ann-tc-body { font-size: 0.85rem; color: var(--nfa-muted); margin: 0 0 8px; }
.nfa-ann-tc-actions { display: flex; gap: 8px; }

/* ── Shared sr-only ────────────────────────────────────────────────────────── */
.nfa-sr-only {
    position: absolute; width: 1px; height: 1px;
    padding: 0; margin: -1px; overflow: hidden;
    clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ── Responsive ────────────────────────────────────────────────────────────── */
@media (max-width: 660px) {
    .nfa-assignment-card { flex-direction: column; }
    .nfa-asgn-right { align-items: flex-start; }
    .nfa-teacher-header { flex-direction: column; align-items: flex-start; }
    .nfa-form-grid { grid-template-columns: 1fr; }
    .nfa-ta-student-table { font-size: 0.78rem; }
    .nfa-ta-student-table th, .nfa-ta-student-table td { padding: 6px; }
}