/* Tanulószoba — a style.css :root design-tokenjeire épül (navy, gold, radius,
   shadow), így egy rendszerben marad a Szimulátorral és a Vizsgával. */

.study-layout {
    display: grid;
    grid-template-columns: 340px 1fr;
    gap: 24px;
    max-width: 1240px;
    margin: 24px auto;
    padding: 0 20px;
    align-items: start;
}

.study-sidebar {
    position: sticky;
    top: 20px;
}

/* FONTOS: ennek a két @media szabálynak a fenti alap .study-layout/.study-sidebar
   szabályok UTÁN kell állnia — azonos CSS-specificitásnál a forráskódban később
   álló szabály nyer, tehát ha ez fentebb lenne, a mobil "position: static"
   felülíródna a "position: sticky"-vel, és a videó a menü mögé csúszna/lebegne
   (ezt tapasztaltuk iOS Safarin). */
@media (min-width: 641px) and (max-width: 860px) {
    .study-layout { grid-template-columns: 260px 1fr; gap: 16px; }
}

@media (max-width: 640px) {
    .study-layout { grid-template-columns: 1fr; padding: 0 14px; margin: 16px auto; }
    .study-sidebar { position: static; }
}

.study-progress {
    margin-bottom: 16px;
}

/* A Tanulószoba nem tölti be a quiz.css-t (nincs szüksége a vizsga-specifikus
   elemeire), ezért a haladás-sáv vizuális megjelenését ITT, önállóan adjuk
   meg — ugyanazzal a recepttel, mint a quiz.css-ben, hogy a két oldal
   nézetileg egy rendszerben maradjon. */
.progress-bar {
    height: 8px;
    background: #e6e8ee;
    border-radius: 999px;
    overflow: hidden;
    margin-top: 8px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-gold-light), var(--color-gold));
    width: 0;
    transition: width 0.35s ease;
}

.progress-fill.is-complete {
    background: var(--color-positive);
}

.study-progress-meta {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-top: 6px;
}

.video-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.video-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

.video-count {
    flex: none;
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--color-text-muted);
    background: #f1f2f6;
    border-radius: 999px;
    padding: 4px 10px;
    font-variant-numeric: tabular-nums;
}

.video-item.is-watched .video-count {
    background: var(--color-positive);
    color: #fff;
}

.video-select {
    flex: 1;
    display: block;
    border: 1px solid var(--color-card-border);
    background: #fff;
    border-radius: var(--radius-sm);
    padding: 10px 12px;
    font-size: 0.85rem;
    font-weight: 600;
    text-align: left;
    color: var(--color-text);
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s, color 0.15s;
}

.video-select:hover { border-color: var(--color-gold); }

.video-item.is-active .video-select {
    background: var(--color-gold);
    border-color: var(--color-gold);
    color: #201a05;
}

.video-item.is-watched .video-select {
    color: var(--color-positive);
}

.video-item.is-active.is-watched .video-select {
    color: #201a05;
}

.study-player-panel {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.study-player-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.study-player-title {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-text);
}

.study-player-frame-wrap {
    position: relative;
    width: 100%;
    padding-top: 56.25%; /* 16:9 */
    border-radius: var(--radius-md);
    overflow: hidden;
    background: #000;
}

.study-thumb-link {
    position: absolute;
    inset: 0;
    display: block;
    text-decoration: none;
}

.study-thumb-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.study-thumb-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background: linear-gradient(180deg, rgba(16, 28, 61, 0.15), rgba(16, 28, 61, 0.55));
    transition: background 0.15s;
}

.study-thumb-link:hover .study-thumb-overlay {
    background: linear-gradient(180deg, rgba(16, 28, 61, 0.25), rgba(16, 28, 61, 0.68));
}

.study-thumb-play {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--color-gold);
    color: #201a05;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    padding-left: 4px; /* optikai középre igazítás a ▶ karakterhez */
    transition: transform 0.15s, background 0.15s;
}

.study-thumb-link:hover .study-thumb-play {
    background: var(--color-gold-light);
    transform: scale(1.06);
}

.study-thumb-label {
    color: #fff;
    font-weight: 700;
    font-size: 0.95rem;
    text-decoration: underline;
    text-underline-offset: 3px;
}

@media (max-width: 560px) {
    .study-player-head { flex-wrap: wrap; }
}

.study-questions {
    background: #f8f9fb;
    border: 1px solid var(--color-card-border);
    border-radius: var(--radius-md);
    padding: 16px 18px;
}

.study-questions-title {
    margin: 0 0 10px;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--color-text-muted);
}

.study-questions-progress {
    margin-bottom: 14px;
}

.study-questions-progress .study-progress-meta {
    margin-top: 6px;
}

.study-questions-list {
    margin: 0;
    padding-left: 0;
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
    font-size: 0.9rem;
    line-height: 1.45;
}

.study-question-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.study-question-check {
    flex: none;
    width: 24px;
    height: 24px;
    margin-top: 1px;
    border: 1px solid var(--color-card-border);
    background: #fff;
    border-radius: 50%;
    color: var(--color-card-border);
    font-size: 0.8rem;
    font-weight: 700;
    line-height: 1;
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s, color 0.15s;
}

.study-question-check:hover { border-color: var(--color-gold); }

.study-question-check.is-watched,
.study-question-item.is-checked .study-question-check {
    background: var(--color-positive);
    border-color: var(--color-positive);
    color: #fff;
}

.study-question-text {
    color: var(--color-text);
}

.study-question-item.is-checked .study-question-text {
    color: var(--color-text-muted);
}

/* Kattintás/billentyűzet-fókusz után a böngésző alapértelmezett (szögletes)
   fókusz-kerete csúnyán ütött a kör alakú gombokon — ez adja helyette az
   oldal saját, arany fókusz-jelzését. */
.video-select:focus-visible,
.study-question-check:focus-visible {
    outline: 2px solid var(--color-gold);
    outline-offset: 2px;
}