/* Lesson comments — engaging discussion UI inside .mg-lesson */

.mg-comments-panel {
    --comment-ink: #14213d;
    --comment-muted: #6b7280;
    --comment-line: #e7ecf3;
    --comment-brand: #0d6efd;
    --comment-brand-2: #6c63ff;
    --comment-student: #198754;
    --comment-student-soft: rgba(25, 135, 84, 0.12);
    --comment-staff-soft: rgba(108, 99, 255, 0.1);
    --comment-radius: 20px;
    font-size: 1.5rem;
}

/* ── Hero header ── */
.mg-comments-hero {
    position: relative;
    overflow: hidden;
    border-radius: var(--comment-radius);
    padding: 1.35rem 1.5rem;
    margin-bottom: 1.35rem;
    background: linear-gradient(135deg, rgba(20, 33, 61, 0.96), rgba(61, 56, 160, 0.92));
    color: #fff;
    box-shadow: 0 12px 32px rgba(61, 56, 160, 0.22);
}

.mg-comments-hero::after {
    content: "";
    position: absolute;
    inset: auto -30px -40px auto;
    width: 160px;
    height: 160px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.45), transparent 70%);
    pointer-events: none;
}

.mg-comments-hero-inner {
    position: relative;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.mg-comments-hero .section-eyebrow {
    color: rgba(255, 255, 255, 0.75);
    letter-spacing: 0.1em;
}

.mg-comments-hero-title {
    font-size: 1.75rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin: 0.35rem 0 0.5rem;
}

.mg-comments-hero-lead {
    color: rgba(255, 255, 255, 0.88);
    font-size: 1.5rem;
    margin: 0;
    max-width: 36rem;
    line-height: 1.5;
}

.mg-comments-stat-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.1);
    border-radius: 999px;
    padding: 0.55rem 1rem;
    font-size: 1.3rem;
    font-weight: 700;
    white-space: nowrap;
    backdrop-filter: blur(6px);
}

.mg-comments-chip-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
    margin-top: 1rem;
}

.mg-comments-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    border-radius: 999px;
    padding: 0.4rem 0.75rem;
    font-size: 1.3rem;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.16);
    color: rgba(255, 255, 255, 0.95);
}

/* ── Compose box ── */
.mg-comments-compose {
    margin-bottom: 1.35rem;
    border: 1px solid rgba(13, 110, 253, 0.18);
    border-radius: var(--comment-radius);
    background: linear-gradient(180deg, #f8fbff 0%, #fff 100%);
    box-shadow: 0 8px 24px rgba(13, 110, 253, 0.08);
    overflow: hidden;
}

.mg-comments-compose-head {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    padding: 1rem 1.25rem 0.5rem;
}

.mg-comments-compose-icon {
    width: 3rem;
    height: 3rem;
    border-radius: 14px;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, var(--comment-brand), var(--comment-brand-2));
    color: #fff;
    font-size: 1.35rem;
    flex-shrink: 0;
    box-shadow: 0 6px 16px rgba(108, 99, 255, 0.28);
}

.mg-comments-compose-title {
    font-size: 1.5rem;
    font-weight: 800;
    margin: 0;
    color: var(--comment-ink);
}

.mg-comments-compose-sub {
    font-size: 1.3rem;
    color: var(--comment-muted);
    margin: 0.15rem 0 0;
}

.mg-comments-compose-body {
    padding: 0.5rem 1.25rem 1.25rem;
}

.mg-comment-input {
    font-size: 1.5rem !important;
    line-height: 1.5;
    resize: vertical;
    min-height: 6rem;
    border-radius: 14px !important;
    border-color: rgba(13, 110, 253, 0.22) !important;
    background: #fff;
    transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.mg-comment-input:focus {
    border-color: var(--comment-brand) !important;
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.14) !important;
}

.mg-comment-input::placeholder {
    font-size: 1.5rem !important;
    opacity: 0.55;
    color: var(--comment-muted);
}

.mg-comments-compose-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 0.85rem;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.mg-comments-compose-hint {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 1.3rem;
    color: var(--comment-muted);
}

.mg-comments-post-btn {
    background: linear-gradient(135deg, var(--comment-brand), var(--comment-brand-2)) !important;
    border: none !important;
    box-shadow: 0 8px 20px rgba(108, 99, 255, 0.3);
    font-weight: 700;
}

.mg-comments-post-btn:hover {
    filter: brightness(1.05);
    transform: translateY(-1px);
}

/* ── Gate / flash ── */
.mg-comments-gate {
    margin-bottom: 1.35rem;
    border-radius: var(--comment-radius);
    border: 1px solid transparent;
    font-size: 1.5rem;
    padding: 1.1rem 1.25rem;
    display: flex;
    align-items: flex-start;
    gap: 0.85rem;
}

.mg-comments-gate-icon {
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 12px;
    display: grid;
    place-items: center;
    flex-shrink: 0;
    font-size: 1.35rem;
}

.mg-comments-gate--subscribe {
    background: linear-gradient(135deg, rgba(13, 110, 253, 0.08), rgba(108, 99, 255, 0.08));
    border-color: rgba(13, 110, 253, 0.2);
}

.mg-comments-gate--subscribe .mg-comments-gate-icon {
    background: rgba(13, 110, 253, 0.14);
    color: var(--comment-brand);
}

.mg-comments-gate--signin {
    background: #f8fafc;
    border-color: var(--comment-line);
}

.mg-comments-gate--signin .mg-comments-gate-icon {
    background: rgba(15, 23, 42, 0.06);
    color: var(--comment-muted);
}

.mg-comments-flash {
    margin-bottom: 1rem;
    font-size: 1.5rem;
    border-radius: 14px;
}

/* ── Thread list ── */
.mg-comments-list {
    display: grid;
    gap: 1.15rem;
}

.mg-comments-list-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.3rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--comment-muted);
    margin-bottom: 0.25rem;
}

/* ── Single thread ── */
.mg-comment-thread {
    border: 1px solid var(--comment-line);
    border-radius: var(--comment-radius);
    background: #fff;
    overflow: hidden;
    box-shadow: 0 6px 20px rgba(15, 23, 42, 0.05);
    transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.mg-comment-thread:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(13, 110, 253, 0.1);
}

.mg-comment-thread--answered {
    border-color: rgba(108, 99, 255, 0.28);
}

.mg-comment-card {
    padding: 1.15rem 1.25rem 1.1rem;
    position: relative;
}

.mg-comment-card--question {
    background: linear-gradient(180deg, #fff 0%, #fafcff 100%);
}

.mg-comment-card--question::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, var(--comment-student), #20c997);
    border-radius: 4px 0 0 4px;
}

.mg-comment-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.mg-comment-author {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    min-width: 0;
}

.mg-comment-avatar {
    width: 3rem;
    height: 3rem;
    border-radius: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--comment-student-soft);
    color: var(--comment-student);
    font-weight: 800;
    font-size: 1.35rem;
    flex-shrink: 0;
    border: 2px solid rgba(25, 135, 84, 0.2);
}

.mg-comment-avatar--staff {
    background: linear-gradient(135deg, #1a1a2e, var(--comment-brand-2));
    color: #fff;
    font-size: 1.2rem;
    border-color: transparent;
    border-radius: 50%;
}

.mg-comment-name-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.45rem;
}

.mg-comment-name-row strong {
    font-size: 1.5rem;
    color: var(--comment-ink);
}

.mg-comment-role-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    border-radius: 999px;
    padding: 0.2rem 0.6rem;
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.mg-comment-role-pill--student {
    background: var(--comment-student-soft);
    color: #157347;
}

.mg-comment-role-pill--staff {
    background: var(--comment-staff-soft);
    color: #4f46e5;
}

.mg-comment-meta {
    display: block;
    color: var(--comment-muted);
    font-size: 1.3rem;
    margin-top: 0.15rem;
}

.mg-comment-body {
    color: #334155;
    line-height: 1.65;
    font-size: 1.5rem;
    word-break: break-word;
    padding-left: 0.15rem;
}

.mg-comment-answered-banner {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    margin-top: 0.65rem;
    padding: 0.35rem 0.7rem;
    border-radius: 999px;
    background: rgba(108, 99, 255, 0.1);
    color: #4f46e5;
    font-size: 1.3rem;
    font-weight: 700;
}

/* ── Staff replies block ── */
.mg-comment-replies {
    background: linear-gradient(180deg, rgba(108, 99, 255, 0.04), rgba(255, 255, 255, 0));
    border-top: 1px solid rgba(108, 99, 255, 0.14);
    padding: 0.35rem 0 0.15rem;
}

.mg-comment-replies-label {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.65rem 1.25rem 0.35rem;
    font-size: 1.3rem;
    font-weight: 700;
    color: #4f46e5;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.mg-comment-card--reply {
    margin: 0 1rem 0.85rem;
    padding: 1rem 1.1rem;
    border-radius: 16px;
    border: 1px solid rgba(108, 99, 255, 0.18);
    background: #fff;
    box-shadow: 0 4px 14px rgba(108, 99, 255, 0.08);
}

.mg-comment-card--reply .mg-comment-body {
    padding-left: 0;
}

/* ── Staff reply compose ── */
.mg-comment-reply-compose {
    padding: 1rem 1.25rem 1.15rem;
    border-top: 1px dashed rgba(108, 99, 255, 0.25);
    background: linear-gradient(180deg, #f5f3ff, #f8fbff);
}

.mg-comment-reply-compose .btn-outline-primary {
    border-color: rgba(108, 99, 255, 0.45);
    color: #4f46e5;
    font-weight: 700;
}

.mg-comment-reply-compose .btn-outline-primary:hover {
    background: rgba(108, 99, 255, 0.1);
    border-color: var(--comment-brand-2);
    color: #3730a3;
}

.mg-comment-delete-form {
    margin: 0;
}

.mg-comment-action-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    padding: 0;
    border: 1px solid rgba(220, 53, 69, 0.25);
    border-radius: 10px;
    background: #fff;
    color: #dc3545;
    font-size: 1.2rem;
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease;
}

.mg-comment-action-btn:hover {
    background: rgba(220, 53, 69, 0.08);
    border-color: #dc3545;
    color: #b02a37;
}

/* ── Empty state ── */
.mg-comments-empty {
    text-align: center;
    padding: 2.75rem 1.75rem;
    border: 2px dashed rgba(108, 99, 255, 0.28);
    border-radius: var(--comment-radius);
    background: linear-gradient(180deg, rgba(108, 99, 255, 0.06), rgba(13, 110, 253, 0.03));
    color: var(--comment-muted);
    font-size: 1.5rem;
}

.mg-comments-empty-icon {
    width: 4.5rem;
    height: 4.5rem;
    margin: 0 auto 1rem;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, rgba(13, 110, 253, 0.14), rgba(108, 99, 255, 0.18));
    color: var(--comment-brand-2);
    font-size: 2rem;
}

.mg-comments-empty h5 {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--comment-ink);
    margin-bottom: 0.5rem;
}

.mg-comments-panel.htmx-request {
    opacity: 0.72;
    pointer-events: none;
}

@media (max-width: 768px) {
    .mg-comments-hero {
        padding: 1.1rem 1.15rem;
    }

    .mg-comments-hero-inner {
        flex-direction: column;
    }

    .mg-comment-card--reply {
        margin-left: 0.65rem;
        margin-right: 0.65rem;
    }
}