:root {
    --bg: #0e0f12;
    --panel: #16181d;
    --panel-2: #1c1f26;
    --border: #2a2e38;
    --text: #e8e8ea;
    --muted: #9aa0a6;
    --accent: #ffb454;
    --accent-2: #7aa2f7;
    --link: #9ece6a;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", system-ui, sans-serif;
    font-size: 17px;
    line-height: 1.65;
}

.container {
    max-width: 860px;
    margin: 0 auto;
    padding: 32px 24px 80px;
}

header.site {
    border-bottom: 1px solid var(--border);
    margin-bottom: 28px;
    padding-bottom: 20px;
}

header.site h1 {
    margin: 0 0 6px;
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

header.site .subtitle {
    color: var(--muted);
    font-size: 0.95rem;
}

a {
    color: var(--link);
    text-decoration: none;
}

a:hover { text-decoration: underline; }

.back-link {
    display: inline-block;
    color: var(--muted);
    font-size: 0.9rem;
    margin-bottom: 18px;
}

/* Index list */
.lektura-section {
    margin-bottom: 28px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 16px 20px 18px;
}

.lektura-section h2 {
    font-size: 1.05rem;
    margin: 0 0 10px;
    color: var(--accent);
    letter-spacing: 0.01em;
}

.zadania-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.zadania-list li {
    padding: 10px 0 10px 26px;
    border-top: 1px solid var(--border);
    position: relative;
    line-height: 1.5;
}

.zadania-list li:first-child { border-top: none; }

.zadania-list li::before {
    position: absolute;
    left: 0;
    top: 13px;
    font-size: 0.85rem;
    line-height: 1;
}

.zadania-list li.done::before {
    content: "●";
    color: var(--link);
}

.zadania-list li.todo::before {
    content: "○";
    color: var(--border);
}

.zadania-list a {
    display: block;
    color: var(--text);
}

.zadania-list a:hover {
    color: var(--accent-2);
    text-decoration: none;
}

.zadania-list li.todo .zad-text {
    color: #5a5e68;
}

.zad-num {
    display: inline-block;
    color: var(--muted);
    font-variant-numeric: tabular-nums;
    margin-right: 8px;
    font-weight: 600;
}

.zad-text {
    color: var(--text);
}

.legenda {
    color: var(--muted);
    font-size: 0.85rem;
    margin-bottom: 18px;
    padding: 10px 14px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 8px;
}

.legenda .dot-done { color: var(--link); }
.legenda .dot-todo { color: #5a5e68; }

/* Question page */
.zad-meta {
    color: var(--muted);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 6px;
}

h1.zad-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0 0 28px;
    line-height: 1.5;
    letter-spacing: -0.005em;
}

h1.zad-title .zad-tytul-fraza {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text);
    letter-spacing: -0.01em;
    line-height: 1.3;
}

h1.zad-title .zad-polecenie {
    display: block;
    font-size: 1.02rem;
    font-weight: 400;
    color: var(--muted);
    line-height: 1.55;
}

article.odpowiedz {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 24px 28px;
    margin-bottom: 24px;
}

article.odpowiedz h3 {
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--accent-2);
    margin: 0 0 14px;
}

article.odpowiedz h3:not(:first-child) { margin-top: 26px; }

article.odpowiedz p {
    margin: 0 0 14px;
}

.audio-block {
    background: var(--panel-2);
    border: 1px dashed var(--border);
    border-radius: 10px;
    padding: 14px 18px;
    margin-bottom: 24px;
    color: var(--muted);
    font-size: 0.9rem;
}

.audio-block > strong {
    display: block;
    margin-bottom: 8px;
}

.audio-block audio {
    width: 100%;
    margin-top: 2px;
}

.nav-prev-next {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    margin-top: 24px;
}

.nav-prev-next a {
    flex: 1;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px 16px;
    color: var(--text);
}

.nav-prev-next a:hover {
    border-color: var(--accent-2);
    text-decoration: none;
}

.nav-prev-next .label {
    display: block;
    color: var(--muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 4px;
}

.nav-prev-next .next { text-align: right; }

.no-audio-yet {
    opacity: 0.7;
    font-style: italic;
}

@media (max-width: 600px) {
    .container { padding: 20px 16px 60px; }
    article.odpowiedz { padding: 18px; }
    html, body { font-size: 16px; }
}