:root {
    --pinfinium-deep: #123d32;
    --pinfinium-green: #4a713d;
    --pinfinium-cream: #fffaf4;
    --pinfinium-orange: #f28c38;
    --pinfinium-line: rgba(18, 61, 50, 0.18);
}

.pinfinium-library {
    color: var(--pinfinium-deep);
}

.pinfinium-library > h2 {
    margin-bottom: 0.35rem;
    font-size: clamp(1.8rem, 4vw, 2.5rem);
}

.pinfinium-library-intro {
    max-width: 68ch;
    margin-bottom: 1.75rem;
    font-size: 1.05rem;
}

.pinfinium-book {
    display: grid;
    grid-template-columns: minmax(180px, 260px) minmax(0, 1fr);
    gap: clamp(1.25rem, 4vw, 2.5rem);
    margin: 0 0 2rem;
    padding: clamp(1rem, 3vw, 2rem);
    border: 1px solid var(--pinfinium-line);
    border-radius: 18px;
    background: var(--pinfinium-cream);
    box-shadow: 0 14px 36px rgba(18, 61, 50, 0.12);
}

.pinfinium-book-cover img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 12px;
}

.pinfinium-eyebrow {
    margin: 0 0 0.3rem;
    color: var(--pinfinium-green);
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.pinfinium-book h3 {
    margin: 0;
    color: var(--pinfinium-deep);
    font-size: clamp(1.35rem, 3vw, 2rem);
}

.pinfinium-author {
    margin-top: 0.4rem;
}

.pinfinium-player {
    margin-top: 1.25rem;
    padding: clamp(1rem, 3vw, 1.5rem);
    border: 1px solid var(--pinfinium-line);
    border-radius: 14px;
    background: #fff;
}

.pinfinium-now-playing {
    margin: 0 0 1rem;
}

.pinfinium-now-playing span,
.pinfinium-now-playing strong {
    display: block;
}

.pinfinium-main-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: clamp(0.55rem, 2vw, 1rem);
    margin-bottom: 1rem;
}

.pinfinium-main-controls button,
.pinfinium-secondary-controls button,
.pinfinium-chapters button {
    min-height: 46px;
    border: 1px solid var(--pinfinium-green);
    border-radius: 10px;
    background: #fff;
    color: var(--pinfinium-deep);
    font-weight: 700;
    cursor: pointer;
}

.pinfinium-main-controls button:focus-visible,
.pinfinium-secondary-controls button:focus-visible,
.pinfinium-chapters button:focus-visible,
.pinfinium-player input:focus-visible,
.pinfinium-player select:focus-visible {
    outline: 3px solid var(--pinfinium-orange);
    outline-offset: 2px;
}

.pinfinium-play {
    min-width: 138px;
    min-height: 62px !important;
    padding: 0.75rem 1.25rem;
    border-color: var(--pinfinium-green) !important;
    border-radius: 999px !important;
    background: var(--pinfinium-green) !important;
    color: #fff !important;
    font-size: 1.05rem;
}

.pinfinium-skip {
    min-width: 92px;
    padding: 0.65rem 0.8rem;
}

.pinfinium-progress-row {
    display: grid;
    grid-template-columns: auto minmax(120px, 1fr) auto;
    gap: 0.7rem;
    align-items: center;
    margin-bottom: 1rem;
}

.pinfinium-progress-row input,
.pinfinium-volume-label input {
    width: 100%;
    accent-color: var(--pinfinium-green);
}

.pinfinium-secondary-controls {
    display: grid;
    grid-template-columns: repeat(2, minmax(140px, auto)) minmax(110px, 0.5fr) minmax(150px, 1fr);
    gap: 0.75rem;
    align-items: end;
}

.pinfinium-secondary-controls button,
.pinfinium-secondary-controls select {
    min-height: 46px;
}

.pinfinium-secondary-controls label {
    display: grid;
    gap: 0.3rem;
    font-weight: 700;
}

.pinfinium-secondary-controls select {
    padding: 0.45rem;
    border: 1px solid var(--pinfinium-green);
    border-radius: 8px;
    background: #fff;
}

.pinfinium-secondary-controls button:disabled {
    cursor: not-allowed;
    opacity: 0.45;
}

.pinfinium-chapters {
    margin-top: 1.25rem;
}

.pinfinium-chapters h4 {
    margin-bottom: 0.6rem;
}

.pinfinium-chapters ol {
    display: grid;
    gap: 0.45rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.pinfinium-chapters button {
    width: 100%;
    padding: 0.65rem 0.85rem;
    text-align: left;
}

.pinfinium-chapters button.is-current {
    background: rgba(74, 113, 61, 0.12);
    box-shadow: inset 4px 0 0 var(--pinfinium-green);
}

.pinfinium-player-status {
    min-height: 1.5em;
    margin: 0.8rem 0 0;
    color: var(--pinfinium-green);
    font-weight: 700;
}

.pinfinium-download-note {
    margin: 1rem 0 0;
    font-size: 0.95rem;
}

.pinfinium-library-empty {
    padding: 1.25rem;
    border: 1px solid var(--pinfinium-line);
    border-radius: 12px;
    background: var(--pinfinium-cream);
}

@media (max-width: 800px) {
    .pinfinium-book {
        grid-template-columns: 1fr;
    }

    .pinfinium-book-cover {
        max-width: 260px;
        margin-inline: auto;
    }

    .pinfinium-secondary-controls {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 520px) {
    .pinfinium-book {
        padding: 0.85rem;
        border-radius: 14px;
    }

    .pinfinium-player {
        padding: 0.85rem;
    }

    .pinfinium-main-controls {
        flex-wrap: wrap;
    }

    .pinfinium-play {
        order: -1;
        width: 100%;
    }

    .pinfinium-skip {
        flex: 1 1 42%;
    }

    .pinfinium-secondary-controls {
        grid-template-columns: 1fr;
    }
}

@media (prefers-reduced-motion: reduce) {
    .pinfinium-player *,
    .pinfinium-book * {
        scroll-behavior: auto !important;
        transition: none !important;
    }
}