/* ═══════════════════════════════════════════════════════════
   Instruction Banner
   Shows contextual exercise instructions with TTS audio.
   ═══════════════════════════════════════════════════════════ */

/* ── Expanded Banner ────────────────────────────────────── */
.instruction-banner--expanded {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    margin-bottom: 12px;
    background: #f0f4f8;
    border: 1px solid #d0d9e3;
    border-radius: 10px;
    position: relative;
}

.instruction-banner__step {
    flex-shrink: 0;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: #5b7a9d;
    background: #dde6f0;
    padding: 3px 8px;
    border-radius: 6px;
    white-space: nowrap;
}

.instruction-banner__text {
    flex: 1;
    margin: 0;
    padding: 0;
    font-size: 15px;
    line-height: 1.4;
    color: #2d3748;
    font-weight: 500;
}

.instruction-banner__audio-btn {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    min-width: 40px;
    min-height: 40px;
    border: none;
    border-radius: 50%;
    background: #dde6f0;
    cursor: pointer;
    transition: background 0.15s ease, transform 0.15s ease;
    padding: 0;
}

.instruction-banner__audio-btn:hover {
    background: #c8d6e5;
}

.instruction-banner__audio-btn:active {
    transform: scale(0.93);
}

.instruction-banner__audio-btn:focus-visible {
    outline: 2px solid #4a90d9;
    outline-offset: 2px;
}

.instruction-banner__audio-icon {
    font-size: 18px;
    line-height: 1;
}

/* ── Collapsed Banner ("?" button) ──────────────────────── */
.instruction-banner--collapsed {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    min-width: 36px;
    min-height: 36px;
    border: 1px solid #d0d9e3;
    border-radius: 50%;
    background: #f0f4f8;
    color: #5b7a9d;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    margin-bottom: 8px;
    margin-left: auto;
    transition: background 0.15s ease, transform 0.15s ease;
    padding: 0;
}

.instruction-banner--collapsed:hover {
    background: #dde6f0;
}

.instruction-banner--collapsed:active {
    transform: scale(0.93);
}

.instruction-banner--collapsed:focus-visible {
    outline: 2px solid #4a90d9;
    outline-offset: 2px;
}

/* ── Mobile ─────────────────────────────────────────────── */
@media (max-width: 480px) {
    .instruction-banner--expanded {
        padding: 8px 10px;
        gap: 8px;
        margin-bottom: 8px;
    }

    .instruction-banner__text {
        font-size: 13px;
    }

    .instruction-banner__step {
        font-size: 10px;
        padding: 2px 6px;
    }

    .instruction-banner__audio-btn {
        width: 36px;
        height: 36px;
        min-width: 36px;
        min-height: 36px;
    }

    .instruction-banner__audio-icon {
        font-size: 16px;
    }
}

/* ── Reduced motion ─────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
    .instruction-banner--collapsed,
    .instruction-banner__audio-btn {
        transition: none;
    }
}