/* ============================================================
   CrossWord — lessons.css
   Phase 7: Lesson panel rows, lesson modal, content styles.
   ============================================================ */

/* ── Lesson progress row ─────────────────────────────────── */
.lesson-progress-row {
    display: flex;
    align-items: center;
    gap: var(--sp-md);
    margin-bottom: var(--sp-md);
}

.lesson-progress-label {
    font-family: var(--font-display);
    font-size: 0.68rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-muted);
    white-space: nowrap;
    flex-shrink: 0;
}

/* ── Lesson list rows ────────────────────────────────────── */
.lesson-list {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.lesson-row {
    display: flex;
    align-items: center;
    gap: var(--sp-md);
    padding: var(--sp-sm) 0;
    border-bottom: 1px solid var(--border-light);
}

.lesson-row:last-child {
    border-bottom: none;
}

.lesson-row-complete .lesson-row-title {
    color: var(--text-muted);
}

.lesson-row-info {
    flex: 1;
    min-width: 0;
}

.lesson-row-title {
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--navy);
    margin-bottom: 2px;
}

.lesson-row-summary {
    font-size: 0.8rem;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.lesson-row-actions {
    display: flex;
    align-items: center;
    gap: var(--sp-sm);
    flex-shrink: 0;
}

.lesson-done-badge {
    color: var(--green);
    font-size: 0.85rem;
    font-weight: 700;
}

/* ── Lesson modal ────────────────────────────────────────── */
.lesson-modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 600;
    background: rgba(17, 37, 72, 0.65);
    backdrop-filter: blur(3px);
    padding: var(--sp-md);
    align-items: flex-end;
    justify-content: center;
}

.lesson-modal.open {
    display: flex;
    animation: modalBackdropIn 0.2s ease;
}

@media (min-width: 768px) {
    .lesson-modal {
        align-items: center;
    }
}

@keyframes modalBackdropIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

.lesson-modal-inner {
    background: var(--surface);
    border-radius: var(--r-xl) var(--r-xl) 0 0;
    width: 100%;
    max-width: 640px;
    max-height: 90dvh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: lessonSlideUp 0.28s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: var(--shadow-xl);
}

@media (min-width: 768px) {
    .lesson-modal-inner {
        border-radius: var(--r-xl);
        animation: lessonFadeIn 0.22s cubic-bezier(0.16, 1, 0.3, 1);
    }
}

@keyframes lessonSlideUp {
    from { transform: translateY(100%); opacity: 0.8; }
    to   { transform: translateY(0);    opacity: 1; }
}

@keyframes lessonFadeIn {
    from { transform: scale(0.96) translateY(8px); opacity: 0; }
    to   { transform: scale(1)    translateY(0);   opacity: 1; }
}

.lesson-modal-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    padding: var(--sp-md) var(--sp-md) var(--sp-sm);
    border-bottom: 1px solid var(--border-light);
    background: var(--navy);
    flex-shrink: 0;
}

.lesson-modal-title {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    color: var(--parchment);
    margin: 0;
    flex: 1;
    padding-right: var(--sp-md);
}

.lesson-modal-close {
    background: none;
    border: none;
    color: rgba(237,227,207,0.6);
    cursor: pointer;
    font-size: 1rem;
    padding: 2px 4px;
    border-radius: var(--r-sm);
    transition: color 0.15s;
    flex-shrink: 0;
    line-height: 1;
}

.lesson-modal-close:hover { color: var(--parchment); }

.lesson-modal-body {
    flex: 1;
    overflow-y: auto;
    padding: var(--sp-lg) var(--sp-md);
    -webkit-overflow-scrolling: touch;
}

.lesson-modal-footer {
    padding: var(--sp-md);
    border-top: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    gap: var(--sp-md);
    flex-wrap: wrap;
    flex-shrink: 0;
    background: var(--surface-raised);
}

.lesson-completed-note {
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* ── Lesson content styles ───────────────────────────────── */
.lesson-content {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-primary);
}

.lesson-content h2 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    color: var(--navy);
    margin: 0 0 var(--sp-md);
    letter-spacing: 0.04em;
}

.lesson-content h3 {
    font-family: var(--font-display);
    font-size: 0.85rem;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin: var(--sp-lg) 0 var(--sp-sm);
}

.lesson-content p {
    margin-bottom: var(--sp-md);
}

.lesson-content em {
    font-style: italic;
    color: var(--text-secondary);
}

.lesson-content strong {
    font-weight: 600;
    color: var(--navy);
}

.lesson-content .lesson-greek {
    font-family: var(--font-greek);
    font-size: 1.1em;
    color: var(--navy);
}

/* Lesson tables */
.lesson-table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--sp-sm) 0 var(--sp-lg);
    font-size: 0.88rem;
}

.lesson-table thead th {
    font-family: var(--font-display);
    font-size: 0.65rem;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: var(--text-muted);
    padding: 6px var(--sp-sm);
    border-bottom: 2px solid var(--border);
    text-align: left;
}

.lesson-table tbody tr:nth-child(even) {
    background: var(--surface-raised);
}

.lesson-table tbody td {
    padding: 7px var(--sp-sm);
    border-bottom: 1px solid var(--border-light);
    vertical-align: top;
}

.lesson-table tbody td[lang="grc"] {
    font-family: var(--font-greek);
    font-size: 1rem;
    color: var(--navy);
}